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1. Prenatal diagnosis by trio exome sequencing in fetuses with ultrasound anomalies: A powerful diagnostic tool

Author: Frédéric Tran Mau-Them, Julian Delanne, Anne-Sophie Denommé-Pichon, Hana Safraou, Ange-Line Bruel, Antonio Vitobello, Aurore Garde, Sophie Nambot, Nicolas Bourgon, Caroline Racine, Arthur Sorlin, Sébastien Moutton, Nathalie Marle, Thierry Rousseau, Paul Sagot, Emmanuel Simon, Catherine Vincent-Delorme, Odile Boute, Cindy Colson, Florence Petit, Marine Legendre, Sophie Naudion, Caroline Rooryck, Clément Prouteau, Estelle Colin, Agnès Guichet, Alban Ziegler, Dominique Bonneau, Godelieve Morel, Mélanie Fradin, Alinoé Lavillaureix, Chloé Quelin, Laurent Pasquier, Sylvie Odent, Gabriella Vera, Alice Goldenberg, Anne-Marie Guerrot, Anne-Claire Brehin, Audrey Putoux, Jocelyne Attia, Carine Abel, Patricia Blanchet, Constance F. Wells, Caroline Deiller, Mathilde Nizon, Sandra Mercier, Marie Vincent, Bertrand Isidor, Jeanne Amiel, Rodolphe Dard, Manon Godin, Nicolas Gruchy, Médéric Jeanne, Elise Schaeffer, Pierre-Yves Maillard, Frédérique Payet, Marie-Line Jacquemont, Christine Francannet, Sabine Sigaudy, Marine Bergot, Emilie Tisserant, Marie-Laure Ascencio, Christine Binquet, Yannis Duffourd, Christophe Philippe, Laurence Faivre, and Christel Thauvin-Robinet
Subjects: exome sequencing (ES), chromosomal microarray, prenatal, fetal, diagnostic yield, Genetics, QH426-470
Abstract: Introduction: Prenatal ultrasound (US) anomalies are detected in around 5%–10% of pregnancies. In prenatal diagnosis, exome sequencing (ES) diagnostic yield ranges from 6% to 80% depending on the inclusion criteria. We describe the first French national multicenter pilot study aiming to implement ES in prenatal diagnosis following the detection of anomalies on US.Patients and methods: We prospectively performed prenatal trio-ES in 150 fetuses with at least two US anomalies or one US anomaly known to be frequently linked to a genetic disorder. Trio-ES was only performed if the results could influence pregnancy management. Chromosomal microarray (CMA) was performed before or in parallel.Results: A causal diagnosis was identified in 52/150 fetuses (34%) with a median time to diagnosis of 28 days, which rose to 56/150 fetuses (37%) after additional investigation. Sporadic occurrences were identified in 34/56 (60%) fetuses and unfavorable vital and/or neurodevelopmental prognosis was made in 13/56 (24%) fetuses. The overall diagnostic yield was 41% (37/89) with first-line trio-ES versus 31% (19/61) after normal CMA. Trio-ES and CMA were systematically concordant for identification of pathogenic CNV.Conclusion: Trio-ES provided a substantial prenatal diagnostic yield, similar to postnatal diagnosis with a median turnaround of approximately 1 month, supporting its routine implementation during the detection of prenatal US anomalies.
Published: 2023
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2. Stepwise use of genomics and transcriptomics technologies increases diagnostic yield in Mendelian disorders

Author: Estelle Colin, Yannis Duffourd, Martin Chevarin, Emilie Tisserant, Simon Verdez, Julien Paccaud, Ange-Line Bruel, Frédéric Tran Mau-Them, Anne-Sophie Denommé-Pichon, Julien Thevenon, Hana Safraou, Thomas Besnard, Alice Goldenberg, Benjamin Cogné, Bertrand Isidor, Julian Delanne, Arthur Sorlin, Sébastien Moutton, Mélanie Fradin, Christèle Dubourg, Magali Gorce, Dominique Bonneau, Salima El Chehadeh, François-Guillaume Debray, Martine Doco-Fenzy, Kevin Uguen, Nicolas Chatron, Bernard Aral, Nathalie Marle, Paul Kuentz, Anne Boland, Robert Olaso, Jean-François Deleuze, Damien Sanlaville, Patrick Callier, Christophe Philippe, Christel Thauvin-Robinet, Laurence Faivre, and Antonio Vitobello
Subjects: genome sequencing, RNA-seq, optical genome mapping, long-read sequencing, clinical diagnoses, Biology (General), QH301-705.5
Abstract: Purpose: Multi-omics offer worthwhile and increasingly accessible technologies to diagnostic laboratories seeking potential second-tier strategies to help patients with unresolved rare diseases, especially patients clinically diagnosed with a rare OMIM (Online Mendelian Inheritance in Man) disease. However, no consensus exists regarding the optimal diagnostic care pathway to adopt after negative results with standard approaches.Methods: In 15 unsolved individuals clinically diagnosed with recognizable OMIM diseases but with negative or inconclusive first-line genetic results, we explored the utility of a multi-step approach using several novel omics technologies to establish a molecular diagnosis. Inclusion criteria included a clinical autosomal recessive disease diagnosis and single heterozygous pathogenic variant in the gene of interest identified by first-line analysis (60%–9/15) or a clinical diagnosis of an X-linked recessive or autosomal dominant disease with no causative variant identified (40%–6/15). We performed a multi-step analysis involving short-read genome sequencing (srGS) and complementary approaches such as mRNA sequencing (mRNA-seq), long-read genome sequencing (lrG), or optical genome mapping (oGM) selected according to the outcome of the GS analysis.Results: SrGS alone or in combination with additional genomic and/or transcriptomic technologies allowed us to resolve 87% of individuals by identifying single nucleotide variants/indels missed by first-line targeted tests, identifying variants affecting transcription, or structural variants sometimes requiring lrGS or oGM for their characterization.Conclusion: Hypothesis-driven implementation of combined omics technologies is particularly effective in identifying molecular etiologies. In this study, we detail our experience of the implementation of genomics and transcriptomics technologies in a pilot cohort of previously investigated patients with a typical clinical diagnosis without molecular etiology.
Published: 2023
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3. OMIXCARE: OMICS technologies solved about 33% of the patients with heterogeneous rare neuro-developmental disorders and negative exome sequencing results and identified 13% additional candidate variants

Author: Estelle Colin, Yannis Duffourd, Emilie Tisserant, Raissa Relator, Ange-Line Bruel, Frédéric Tran Mau-Them, Anne-Sophie Denommé-Pichon, Hana Safraou, Julian Delanne, Nolwenn Jean-Marçais, Boris Keren, Bertrand Isidor, Marie Vincent, Cyril Mignot, Delphine Heron, Alexandra Afenjar, Solveig Heide, Anne Faudet, Perrine Charles, Sylvie Odent, Yvan Herenger, Arthur Sorlin, Sébastien Moutton, Jennifer Kerkhof, Haley McConkey, Martin Chevarin, Charlotte Poë, Victor Couturier, Valentin Bourgeois, Patrick Callier, Anne Boland, Robert Olaso, Christophe Philippe, Bekim Sadikovic, Christel Thauvin-Robinet, Laurence Faivre, Jean-François Deleuze, and Antonio Vitobello
Subjects: undiagnosed neurodevelopmental diseases, genome sequencing, transcriptome sequencing, DNA methylation analysis, translational research, Biology (General), QH301-705.5
Abstract: Purpose: Patients with rare or ultra-rare genetic diseases, which affect 350 million people worldwide, may experience a diagnostic odyssey. High-throughput sequencing leads to an etiological diagnosis in up to 50% of individuals with heterogeneous neurodevelopmental or malformation disorders. There is a growing interest in additional omics technologies in translational research settings to examine the remaining unsolved cases.Methods: We gathered 30 individuals with malformation syndromes and/or severe neurodevelopmental disorders with negative trio exome sequencing and array comparative genomic hybridization results through a multicenter project. We applied short-read genome sequencing, total RNA sequencing, and DNA methylation analysis, in that order, as complementary translational research tools for a molecular diagnosis.Results: The cohort was mainly composed of pediatric individuals with a median age of 13.7 years (4 years and 6 months to 35 years and 1 month). Genome sequencing alone identified at least one variant with a high level of evidence of pathogenicity in 8/30 individuals (26.7%) and at least a candidate disease-causing variant in 7/30 other individuals (23.3%). RNA-seq data in 23 individuals allowed two additional individuals (8.7%) to be diagnosed, confirming the implication of two pathogenic variants (8.7%), and excluding one candidate variant (4.3%). Finally, DNA methylation analysis confirmed one diagnosis identified by genome sequencing (Kabuki syndrome) and identified an episignature compatible with a BAFopathy in a patient with a clinical diagnosis of Coffin-Siris with negative genome and RNA-seq results in blood.Conclusion: Overall, our integrated genome, transcriptome, and DNA methylation analysis solved 10/30 (33.3%) cases and identified a strong candidate gene in 4/30 (13.3%) of the patients with rare neurodevelopmental disorders and negative exome sequencing results.
Published: 2022
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4. ACO2 clinicobiological dataset with extensive phenotype ontology annotation

Author: Khadidja Guehlouz, Thomas Foulonneau, Patrizia Amati-Bonneau, Majida Charif, Estelle Colin, Céline Bris, Valérie Desquiret-Dumas, Dan Milea, Philippe Gohier, Vincent Procaccio, Dominique Bonneau, Johan T. den Dunnen, Guy Lenaers, Pascal Reynier, and Marc Ferré
Subjects: Science
Abstract: Measurement(s) sequence_variant • Phenotypic variability Technology Type(s) DNA sequencing • Ophthalmologist Factor Type(s) sequence variant • phenotype Sample Characteristic - Organism Homo sapiens Machine-accessible metadata file describing the reported data: https://doi.org/10.6084/m9.figshare.13574528
Published: 2021
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5. Neuropsychological Features of Children and Adolescents With Mitochondrial Disorders: A Descriptive Case Series

Author: Elise Riquin, Magalie Barth, Thomas Le Nerzé, Natwin Pasquini, Clement Prouteau, Estelle Colin, Patrizia Amati Bonneau, Vincent Procaccio, Patrick Van Bogaert, Philippe Duverger, Dominique Bonneau, and Arnaud Roy
Subjects: mitochondrial disorders, child, adolescent, neuropsychological profile, intelligence, executive function, Psychiatry, RC435-571
Abstract: BackgroundMitochondrial disorders (MD) are metabolic diseases related to genetic mutations in mitochondrial DNA and nuclear DNA that cause dysfunction of the mitochondrial respiratory chain. Cognitive impairment and psychiatric symptoms are frequently associated with MD in the adult population. The aim of this study is to describe the neuropsychological profile in children and adolescents with MD.MethodsWe prospectively recruited a sample of 12 children and adolescents between February 2019 and February 2020 in the Reference Center for Mitochondrial Disorders of Angers (France). Participants and their parents completed an anamnestic form describing socio-demographic data and completed the WISC-V (Wechsler Intelligence Scale for Children, 5th edition) and the Parent and Teacher forms of the BRIEF (Behavior Rating Inventory of Executive Function).ResultsIn our sample, the mean IQ (Intellectual Quotient) score was 87.3 ± 25.3. The score ranged from 52 to 120. Concerning executive functions, a significant global clinical complaint was found for parents (six times more than normal) and to a lesser extent, for teachers (among 3 to 4 times more). Levels of intelligence and executive functioning were globally linked in our cohort but dissociation remains a possibility.ConclusionThe results of this study show that MD can be associated to neuropsychological disorders in children and adolescents, especially regarding the intelligence quotient and the executive function. Our study also highlights the need for regular neuropsychological assessments in individuals with MD and developing brains, such as children and adolescents.
Published: 2022
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6. Psychiatric Symptoms of Children and Adolescents With Mitochondrial Disorders: A Descriptive Case Series

Author: Elise Riquin, Thomas Le Nerzé, Natwin Pasquini, Magalie Barth, Clément Prouteau, Estelle Colin, Patrizia Amati Bonneau, Vincent Procaccio, Patrick Van Bogaert, Philippe Duverger, Dominique Bonneau, and Arnaud Roy
Subjects: mitochondrial disorders, child, adolescent & youth, psychiatric symptom, anxiety, depression, Psychiatry, RC435-571
Abstract: Background: Mitochondrial disorders (MD) are a group of clinically heterogeneous genetic disorders resulting from dysfunction of the mitochondrial respiratory chain. Cognitive impairment is a common feature in adults with MD and psychiatric symptoms are associated with MD in up to 70% of the adult population. The aim of this study is to describe the psychiatric profile in children and adolescents with MD by focusing on the description of psychiatric symptoms.Methods: A cohort of 12 children and adolescents was prospectively recruited between February 2019 and February 2020 in the Reference Center for Mitochondrial Disorders of Angers (France). Participants and their parents completed an anamnestic form to provide socio-demographic data and completed the Global Assessment of Functioning scale, the Brief Psychiatric Rating Scale, the Child Depression Inventory, the Revised Children's Manifest Anxiety Scale, and the Conner's Rating Scale to evaluate the inattention/hyperactivity symptoms as well as the Quality of Life scale.Results: Four children (33.3%) were diagnosed with depressive symptoms. With regarding to anxiety, 6 children (50%) reported anxiety issues during the psychiatric interview and 3 children (25%) were suffering from anxiety according to the RCMAS scale. Compared to other children with chronic illnesses, the individuals in our cohort reported a lower overall quality of life score and lower scores in physical and social subscales.Conclusion: Our study shows that MD can lead to psychiatric disorders in children and adolescents, in particular anxiety and depression, as well as poor quality of life. This highlights the need for regular psychiatric assessments in individuals with developing brains, such as children and adolescents. We do not, however, have data regarding the neuropsychological profile of this population.
Published: 2021
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7. AMPA receptor GluA2 subunit defects are a cause of neurodevelopmental disorders

Author: Vincenzo Salpietro, Christine L. Dixon, Hui Guo, Oscar D. Bello, Jana Vandrovcova, Stephanie Efthymiou, Reza Maroofian, Gali Heimer, Lydie Burglen, Stephanie Valence, Erin Torti, Moritz Hacke, Julia Rankin, Huma Tariq, Estelle Colin, Vincent Procaccio, Pasquale Striano, Kshitij Mankad, Andreas Lieb, Sharon Chen, Laura Pisani, Conceicao Bettencourt, Roope Männikkö, Andreea Manole, Alfredo Brusco, Enrico Grosso, Giovanni Battista Ferrero, Judith Armstrong-Moron, Sophie Gueden, Omer Bar-Yosef, Michal Tzadok, Kristin G. Monaghan, Teresa Santiago-Sim, Richard E. Person, Megan T. Cho, Rebecca Willaert, Yongjin Yoo, Jong-Hee Chae, Yingting Quan, Huidan Wu, Tianyun Wang, Raphael A. Bernier, Kun Xia, Alyssa Blesson, Mahim Jain, Mohammad M. Motazacker, Bregje Jaeger, Amy L. Schneider, Katja Boysen, Alison M. Muir, Candace T. Myers, Ralitza H. Gavrilova, Lauren Gunderson, Laura Schultz-Rogers, Eric W. Klee, David Dyment, Matthew Osmond, Mara Parellada, Cloe Llorente, Javier Gonzalez-Peñas, Angel Carracedo, Arie Van Haeringen, Claudia Ruivenkamp, Caroline Nava, Delphine Heron, Rosaria Nardello, Michele Iacomino, Carlo Minetti, Aldo Skabar, Antonella Fabretto, SYNAPS Study Group, Miquel Raspall-Chaure, Michael Chez, Anne Tsai, Emily Fassi, Marwan Shinawi, John N. Constantino, Rita De Zorzi, Sara Fortuna, Fernando Kok, Boris Keren, Dominique Bonneau, Murim Choi, Bruria Benzeev, Federico Zara, Heather C. Mefford, Ingrid E. Scheffer, Jill Clayton-Smith, Alfons Macaya, James E. Rothman, Evan E. Eichler, Dimitri M. Kullmann, and Henry Houlden
Subjects: Science
Abstract: Genetic variants in ionotropic glutamate receptors have been implicated in neurodevelopmental disorders. Here, the authors report heterozygous de novo mutations in the GRIA2 gene in 28 individuals with intellectual disability and neurodevelopmental abnormalities associated with reduced Ca2+ transport and AMPAR currents.”
Published: 2019
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8. Use of Next-Generation Sequencing for the Molecular Diagnosis of 1,102 Patients With a Autosomal Optic Neuropathy

Author: Majida Charif, Céline Bris, David Goudenège, Valérie Desquiret-Dumas, Estelle Colin, Alban Ziegler, Vincent Procaccio, Pascal Reynier, Dominique Bonneau, Guy Lenaers, and Patrizia Amati-Bonneau
Subjects: inherited optic neuropathies, mitochondrial disorders, molecular diagnosis, next generation sequencing, retinal ganglia cells, Neurology. Diseases of the nervous system, RC346-429
Abstract: Advances in next-generation sequencing (NGS) facilitate the diagnosis of genetic disorders. To evaluate its use for the molecular diagnosis of inherited optic neuropathy (ION), a blinding disease caused by the degeneration of retinal ganglion cells, we performed genetic analysis using targeted NGS of 22 already known and candidate genes in a cohort of 1,102 affected individuals. The panel design, library preparation, and sequencing reactions were performed using the Ion AmpliSeq technology. Pathogenic variants were detected in 16 genes in 245 patients (22%), including 186 (17%) and 59 (5%) dominant and recessive cases, respectively. Results confirmed that OPA1 variants are responsible for the majority of dominant IONs, whereas ACO2 and WFS1 variants are also frequently involved in both dominant and recessive forms of ION. All pathogenic variants were found in genes encoding proteins involved in the mitochondrial function, highlighting the importance of mitochondria in the survival of retinal ganglion cells.
Published: 2021
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9. Histiocytoid cardiomyopathy in an eleven-month-old infant: A case report and literature review

Author: Rida El Ayoubi, Estelle Colin, Audrey Rousseau, Sylvie Nguyen The Tich, Patrizia Bonneau, and Stéphane Triau
Subjects: Pathology, RB1-214
Published: 2017
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10. Bioinformatics Tools and Databases to Assess the Pathogenicity of Mitochondrial DNA Variants in the Field of Next Generation Sequencing

Author: Céline Bris, David Goudenege, Valérie Desquiret-Dumas, Majida Charif, Estelle Colin, Dominique Bonneau, Patrizia Amati-Bonneau, Guy Lenaers, Pascal Reynier, and Vincent Procaccio
Subjects: mitochondria, mitochondrial diseases, mitochondrial DNA, next generation sequencing, bioinformatics, mtDNA variant interpretation, Genetics, QH426-470
Abstract: The development of next generation sequencing (NGS) has greatly enhanced the diagnosis of mitochondrial disorders, with a systematic analysis of the whole mitochondrial DNA (mtDNA) sequence and better detection sensitivity. However, the exponential growth of sequencing data renders complex the interpretation of the identified variants, thereby posing new challenges for the molecular diagnosis of mitochondrial diseases. Indeed, mtDNA sequencing by NGS requires specific bioinformatics tools and the adaptation of those developed for nuclear DNA, for the detection and quantification of mtDNA variants from sequence alignment to the calling steps, in order to manage the specific features of the mitochondrial genome including heteroplasmy, i.e., coexistence of mutant and wildtype mtDNA copies. The prioritization of mtDNA variants remains difficult, relying on a limited number of specific resources: population and clinical databases, and in silico tools providing a prediction of the variant pathogenicity. An evaluation of the most prominent bioinformatics tools showed that their ability to predict the pathogenicity was highly variable indicating that special efforts should be directed at developing new bioinformatics tools dedicated to the mitochondrial genome. In addition, massive parallel sequencing raised several issues related to the interpretation of very low mtDNA mutational loads, discovery of variants of unknown significance, and mutations unrelated to patient phenotype or the co-occurrence of mtDNA variants. This review provides an overview of the current strategies and bioinformatics tools for accurate annotation, prioritization and reporting of mtDNA variations from NGS data, in order to carry out accurate genetic counseling in individuals with primary mitochondrial diseases.
Published: 2018
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11. Increased Wnt and Notch signaling: a clue to the renal disease in Schimke immuno-osseous dysplasia?

Author: Marie Morimoto, Clara Myung, Kimberly Beirnes, Kunho Choi, Yumi Asakura, Arend Bokenkamp, Dominique Bonneau, Milena Brugnara, Joel Charrow, Estelle Colin, Amira Davis, Georges Deschenes, Mattia Gentile, Mario Giordano, Andrew K. Gormley, Rajeshree Govender, Mark Joseph, Kory Keller, Evelyne Lerut, Elena Levtchenko, Laura Massella, Christy Mayfield, Behzad Najafian, David Parham, Jurgen Spranger, Peter Stenzel, Uluc Yis, Zhongxin Yu, Jonathan Zonana, Glenda Hendson, and Cornelius F. Boerkoel
Subjects: Schimke immuno-osseous dysplasia, SMARCAL1 protein, Focal segmental glomerulosclerosis, Wnt signaling pathway, Notch signaling pathway, Medicine
Abstract: Abstract Background Schimke immuno-osseous dysplasia (SIOD) is a multisystemic disorder caused by biallelic mutations in the SWI/SNF-related matrix-associated actin-dependent regulator of chromatin, subfamily A-like 1 (SMARCAL1) gene. Changes in gene expression underlie the arteriosclerosis and T-cell immunodeficiency of SIOD; therefore, we hypothesized that SMARCAL1 deficiency causes the focal segmental glomerulosclerosis (FSGS) of SIOD by altering renal gene expression. We tested this hypothesis by gene expression analysis of an SIOD patient kidney and verified these findings through immunofluorescent analysis in additional SIOD patients and a genetic interaction analysis in Drosophila. Results We found increased expression of components and targets of the Wnt and Notch signaling pathways in the SIOD patient kidney, increased levels of unphosphorylated β-catenin and Notch1 intracellular domain in the glomeruli of most SIOD patient kidneys, and genetic interaction between the Drosophila SMARCAL1 homologue Marcal1 and genes of the Wnt and Notch signaling pathways. Conclusions We conclude that increased Wnt and Notch activity result from SMARCAL1 deficiency and, as established causes of FSGS, contribute to the renal disease of most SIOD patients. This further clarifies the pathogenesis of SIOD and will hopefully direct potential therapeutic approaches for SIOD patients.
Published: 2016
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12. A recurrent KCNQ2 pore mutation causing early onset epileptic encephalopathy has a moderate effect on M current but alters subcellular localization of Kv7 channels

Author: Affef Abidi, Jérôme J. Devaux, Florence Molinari, Gisèle Alcaraz, François-Xavier Michon, Julie Sutera-Sardo, Hélène Becq, Caroline Lacoste, Cécilia Altuzarra, Alexandra Afenjar, Cyril Mignot, Diane Doummar, Bertrand Isidor, Sylvie N. Guyen, Estelle Colin, Sabine De La Vaissière, Damien Haye, Adeline Trauffler, Catherine Badens, Fabienne Prieur, Gaetan Lesca, Laurent Villard, Mathieu Milh, and Laurent Aniksztejn
Subjects: Early epileptic encephalopathy, Kv7 channels, M-current, p.A294V mutation, p.A294G mutation, Subcellular channel expression, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
Abstract: Mutations in the KCNQ2 gene encoding the voltage-dependent potassium M channel Kv7.2 subunit cause either benign epilepsy or early onset epileptic encephalopathy (EOEE). It has been proposed that the disease severity rests on the inhibitory impact of mutations on M current density. Here, we have analyzed the phenotype of 7 patients carrying the p.A294V mutation located on the S6 segment of the Kv7.2 pore domain (Kv7.2A294V). We investigated the functional and subcellular consequences of this mutation and compared it to another mutation (Kv7.2A294G) associated with a benign epilepsy and affecting the same residue. We report that all the patients carrying the p.A294V mutation presented the clinical and EEG characteristics of EOEE. In CHO cells, the total expression of Kv7.2A294V alone, assessed by western blotting, was only 20% compared to wild-type. No measurable current was recorded in CHO cells expressing Kv7.2A294V channel alone. Although the total Kv7.2A294V expression was rescued to wild-type levels in cells co-expressing the Kv7.3 subunit, the global current density was still reduced by 83% compared to wild-type heteromeric channel. In a configuration mimicking the patients' heterozygous genotype i.e., Kv7.2A294V/Kv7.2/Kv7.3, the global current density was reduced by 30%. In contrast to Kv7.2A294V, the current density of homomeric Kv7.2A294G was not significantly changed compared to wild-type Kv7.2. However, the current density of Kv7.2A294G/Kv7.2/Kv7.3 and Kv7.2A294G/Kv7.3 channels were reduced by 30% and 50% respectively, compared to wild-type Kv7.2/Kv7.3. In neurons, the p.A294V mutation induced a mislocalization of heteromeric mutant channels to the somato-dendritic compartment, while the p.A294G mutation did not affect the localization of the heteromeric channels to the axon initial segment. We conclude that this position is a hotspot of mutation that can give rise to a severe or a benign epilepsy. The p.A294V mutation does not exert a dominant-negative effect on wild-type subunits but alters the preferential axonal targeting of heteromeric Kv7 channels. Our data suggest that the disease severity is not necessarily a consequence of a strong inhibition of M current and that additional mechanisms such as abnormal subcellular distribution of Kv7 channels could be determinant.
Published: 2015
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13. TCEAL1 loss-of-function results in an X-linked dominant neurodevelopmental syndrome and drives the neurological disease trait in Xq22.2 deletions

Author: Hadia Hijazi, Linda M. Reis, Davut Pehlivan, Jonathan A. Bernstein, Michael Muriello, Erin Syverson, Devon Bonner, Mehrdad A. Estiar, Ziv Gan-Or, Guy A. Rouleau, Ekaterina Lyulcheva, Lynn Greenhalgh, Marine Tessarech, Estelle Colin, Agnès Guichet, Dominique Bonneau, R.H. van Jaarsveld, A.M.A. Lachmeijer, Lyse Ruaud, Jonathan Levy, Anne-Claude Tabet, Rafal Ploski, Małgorzata Rydzanicz, Łukasz Kępczyński, Katarzyna Połatyńska, Yidan Li, Jawid M. Fatih, Dana Marafi, Jill A. Rosenfeld, Zeynep Coban-Akdemir, Weimin Bi, Richard A. Gibbs, Grace M. Hobson, Jill V. Hunter, Claudia M.B. Carvalho, Jennifer E. Posey, Elena V. Semina, and James R. Lupski
Subjects: Male, Phenotype, Report, Intellectual Disability, Genetics, Humans, Muscle Hypotonia, Female, Syndrome, Autistic Disorder, Genetics (clinical), Transcription Factors
Abstract: An Xq22.2 region upstream of PLP1 has been proposed to underly a neurological disease trait when deleted in 46,XX females. Deletion mapping revealed that heterozygous deletions encompassing the smallest region of overlap (SRO) spanning six Xq22.2 genes (BEX3, RAB40A, TCEAL4, TCEAL3, TCEAL1, and MORF4L2) associate with an early-onset neurological disease trait (EONDT) consisting of hypotonia, intellectual disability, neurobehavioral abnormalities, and dysmorphic facial features. None of the genes within the SRO have been associated with monogenic disease in OMIM. Through local and international collaborations facilitated by GeneMatcher and Matchmaker Exchange, we have identified and herein report seven de novo variants involving TCEAL1 in seven unrelated families: three hemizygous truncating alleles; one hemizygous missense allele; one heterozygous TCEAL1 full gene deletion; one heterozygous contiguous deletion of TCEAL1, TCEAL3, and TCEAL4; and one heterozygous frameshift variant allele. Variants were identified through exome or genome sequencing with trio analysis or through chromosomal microarray. Comparison with previously reported Xq22 deletions encompassing TCEAL1 identified a more-defined syndrome consisting of hypotonia, abnormal gait, developmental delay/intellectual disability especially affecting expressive language, autistic-like behavior, and mildly dysmorphic facial features. Additional features include strabismus, refractive errors, variable nystagmus, gastroesophageal reflux, constipation, dysmotility, recurrent infections, seizures, and structural brain anomalies. An additional maternally inherited hemizygous missense allele of uncertain significance was identified in a male with hypertonia and spasticity without syndromic features. These data provide evidence that TCEAL1 loss of function causes a neurological rare disease trait involving significant neurological impairment with features overlapping the EONDT phenotype in females with the Xq22 deletion.
Published: 2022
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14. Neurodevelopmental and Epilepsy Phenotypes in Individuals With Missense Variants in the Voltage-Sensing and Pore Domains ofKCNH5

Author: Hannah C. Happ, Lynette G. Sadleir, Matthew Zemel, Guillem de Valles-Ibáñez, Michael S. Hildebrand, Allyn McConkie-Rosell, Marie McDonald, Halie May, Tristan Sands, Vimla Aggarwal, Christopher Elder, Timothy Feyma, Allan Bayat, Rikke S. Møller, Christina D. Fenger, Jens Erik Klint Nielsen, Anita N. Datta, Kathleen M. Gorman, Mary D. King, Natalia D. Linhares, Barbara K. Burton, Andrea Paras, Sian Ellard, Julia Rankin, Anju Shukla, Purvi Majethia, Rory J. Olson, Karthik Muthusamy, Lisa A. Schimmenti, Keith Starnes, Lucie Sedláčková, Katalin Štěrbová, Markéta Vlčková, Petra Laššuthová, Alena Jahodová, Brenda E. Porter, Nathalie Couque, Estelle Colin, Clément Prouteau, Corinne Collet, Thomas Smol, Roseline Caumes, Fleur Vansenne, Francesca Bisulli, Laura Licchetta, Richard Person, Erin Torti, Kirsty McWalter, Richard Webster, Elizabeth E. Gerard, Gaetan Lesca, Pierre Szepetowski, Ingrid E. Scheffer, Heather C. Mefford, Gemma L. Carvill, University of Otago [Dunedin, Nouvelle-Zélande], University of Washington [Seattle], Epilepsy Research Centre, University of Melbourne, Duke University Medical Center, Institute for Genomic Medicine [New York, NY, USA], Columbia University [New York], Columbia University Irving Medical Center (CUIMC), University of Southern Denmark (SDU), Zealand University Hospital [Roskilde, Denmark], University of British Columbia [Vancouver], University College Dublin [Dublin] (UCD), Kasturba Medical College, Manipal, Center for Individualized Medicine, Stanford University School of Medicine [CA, USA], Service de génétique [Angers], Université d'Angers (UA)-Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), Institut de Génétique Médicale [CHRU Lille], Hôpital Jeanne de Flandre [Lille]-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), University of Bologna/Università di Bologna, GeneDx [Gaithersburg, MD, USA], Institut de Neurobiologie de la Méditerranée [Aix-Marseille Université] (INMED - INSERM U1249), and Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM)
Subjects: [SDV.NEU.NB]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology, Neurology (clinical), Research Article
Abstract: Background and ObjectivesKCNH5encodes the voltage-gated potassium channel EAG2/Kv10.2. We aimed to delineate the neurodevelopmental and epilepsy phenotypic spectrum associated with de novoKCNH5variants.MethodsWe screened 893 individuals with developmental and epileptic encephalopathies forKCNH5variants using targeted or exome sequencing. Additional individuals withKCNH5variants were identified through an international collaboration. Clinical history, EEG, and imaging data were analyzed; seizure types and epilepsy syndromes were classified. We included 3 previously published individuals including additional phenotypic details.ResultsWe report a cohort of 17 patients, including 9 with a recurrent de novo missense variant p.Arg327His, 4 with a recurrent missense variant p.Arg333His, and 4 additional novel missense variants. All variants were located in or near the functionally critical voltage-sensing or pore domains, absent in the general population, and classified as pathogenic or likely pathogenic using the American College of Medical Genetics and Genomics criteria. All individuals presented with epilepsy with a median seizure onset at 6 months. They had a wide range of seizure types, including focal and generalized seizures. Cognitive outcomes ranged from normal intellect to profound impairment. Individuals with the recurrent p.Arg333His variant had a self-limited drug-responsive focal or generalized epilepsy and normal intellect, whereas the recurrent p.Arg327His variant was associated with infantile-onset DEE. Two individuals with variants in the pore domain were more severely affected, with a neonatal-onset movement disorder, early-infantile DEE, profound disability, and childhood death.DiscussionWe describe a cohort of 17 individuals with pathogenic or likely pathogenic missense variants in the voltage-sensing and pore domains of Kv10.2, including 14 previously unreported individuals. We present evidence for a putative emerging genotype-phenotype correlation with a spectrum of epilepsy and cognitive outcomes. Overall, we expand the role of EAG proteins in human disease and establishKCNH5as implicated in a spectrum of neurodevelopmental disorders and epilepsy.
Published: 2022
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15. Rare pathogenic variants in WNK3 cause X-linked intellectual disability

Author: Sébastien Küry, Jinwei Zhang, Thomas Besnard, Alfonso Caro-Llopis, Xue Zeng, Stephanie M. Robert, Sunday S. Josiah, Emre Kiziltug, Anne-Sophie Denommé-Pichon, Benjamin Cogné, Adam J. Kundishora, Le T. Hao, Hong Li, Roger E. Stevenson, Raymond J. Louie, Wallid Deb, Erin Torti, Virginie Vignard, Kirsty McWalter, F. Lucy Raymond, Farrah Rajabi, Emmanuelle Ranza, Detelina Grozeva, Stephanie A. Coury, Xavier Blanc, Elise Brischoux-Boucher, Boris Keren, Katrin Õunap, Karit Reinson, Pilvi Ilves, Ingrid M. Wentzensen, Eileen E. Barr, Solveig Heide Guihard, Perrine Charles, Eleanor G. Seaby, Kristin G. Monaghan, Marlène Rio, Yolande van Bever, Marjon van Slegtenhorst, Wendy K. Chung, Ashley Wilson, Delphine Quinquis, Flora Bréhéret, Kyle Retterer, Pierre Lindenbaum, Emmanuel Scalais, Lindsay Rhodes, Katrien Stouffs, Elaine M. Pereira, Sara M. Berger, Sarah S. Milla, Ankita B. Jaykumar, Melanie H. Cobb, Shreyas Panchagnula, Phan Q. Duy, Marie Vincent, Sandra Mercier, Brigitte Gilbert-Dussardier, Xavier Le Guillou, Séverine Audebert-Bellanger, Sylvie Odent, Sébastien Schmitt, Pierre Boisseau, Dominique Bonneau, Annick Toutain, Estelle Colin, Laurent Pasquier, Richard Redon, Arjan Bouman, Jill. A. Rosenfeld, Michael J. Friez, Helena Pérez-Peña, Syed Raza Akhtar Rizvi, Shozeb Haider, Stylianos E. Antonarakis, Charles E. Schwartz, Francisco Martínez, Stéphane Bézieau, Kristopher T. Kahle, Bertrand Isidor, Clinical Genetics, Clinical sciences, Medical Genetics, Reproduction and Genetics, Centre hospitalier universitaire de Nantes (CHU Nantes), unité de recherche de l'institut du thorax UMR1087 UMR6291 (ITX), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Nantes Université - UFR de Médecine et des Techniques Médicales (Nantes Univ - UFR MEDECINE), Nantes Université - pôle Santé, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Santé, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), University of Exeter, MitoVasc - Physiopathologie Cardiovasculaire et Mitochondriale (MITOVASC), Université d'Angers (UA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), The Greenwood Genetic Center, GeneDx [Gaithersburg, MD, USA], Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Imagine - Institut des maladies génétiques (IHU) (Imagine - U1163), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Centre hospitalier universitaire de Poitiers (CHU Poitiers), Centre Hospitalier Régional Universitaire de Brest (CHRU Brest), CHU Pontchaillou [Rennes], Institut de Génétique et Développement de Rennes (IGDR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Imagerie et cerveau (iBrain - Inserm U1253 - UNIV Tours ), Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Genève = University of Geneva (UNIGE), Yale School of Medicine [New Haven, Connecticut] (YSM), This work was granted by the French network of University Hospitals HUGO ('Hôpitaux Universitaires du Grand Ouest'), the French Ministry of Health, and and the Health Regional Agencies from Poitou-Charentes (represented by Frédérique Allaire), Bretagne, Pays de la Loire, and Centre-Val de Loire (HUGODIMS, 2013, RC14_0107). W.K.C. was supported by grants from Simons Foundation Autism Research Initiative, United
Subjects: MESH: Symporters, Exome sequencing, Male, KCC2, Mutation, Missense, MESH: Catalytic Domain, Neurodevelopmental disease, Protein Serine-Threonine Kinases, X-linked intellectual disability, MESH: Brain, WNK3, SDG 3 - Good Health and Well-being, Loss of Function Mutation, Catalytic Domain, MESH: Mental Retardation, X-Linked, Humans, Phosphorylation, MESH: Hemizygote, Genetics (clinical), Hemizygote, MESH: Mutation, Missense, [SDV.GEN]Life Sciences [q-bio]/Genetics, MESH: Humans, MESH: Phosphorylation, Symporters, Brain, MESH: Loss of Function Mutation, MESH: Protein Serine-Threonine Kinases, MESH: Male, Mental Retardation, X-Linked, Maternal Inheritance, MESH: Maternal Inheritance
Abstract: PURPOSE: WNK3 kinase (PRKWNK3) has been implicated in the development and function of the brain via its regulation of the cation-chloride cotransporters, but the role of WNK3 in human development is unknown. METHOD: We ascertained exome or genome sequences of individuals with rare familial or sporadic forms of intellectual disability (ID). RESULTS: We identified a total of 6 different maternally-inherited, hemizygous, 3 loss-of-function or 3 pathogenic missense variants (p.Pro204Arg, p.Leu300Ser, p.Glu607Val) in WNK3 in 14 male individuals from 6 unrelated families. Affected individuals had identifier with variable presence of epilepsy and structural brain defects. WNK3 variants cosegregated with the disease in 3 different families with multiple affected individuals. This included 1 large family previously diagnosed with X-linked Prieto syndrome. WNK3 pathogenic missense variants localize to the catalytic domain and impede the inhibitory phosphorylation of the neuronal-specific chloride cotransporter KCC2 at threonine 1007, a site critically regulated during the development of synaptic inhibition. CONCLUSION: Pathogenic WNK3 variants cause a rare form of human X-linked identifier with variable epilepsy and structural brain abnormalities and implicate impaired phospho-regulation of KCC2 as a pathogenic mechanism.
Published: 2022
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16. Episignatures in practice: independent evaluation of published episignatures for the molecular diagnostics of ten neurodevelopmental disorders

Author: Thomas Husson, François Lecoquierre, Gaël Nicolas, Anne-Claire Richard, Alexandra Afenjar, Séverine AUDEBERT-BELLANGER, Catherine Badens, Frédéric Bilan, Varoona Bizaoui, Anne Boland, Marie-Noelle Bonnet-Dupeyron, Elise Brischoux-Boucher, Céline Bonnet, Marie Bournez, Odile Boute, Perrine Brunelle, Roseline Caumes, Perrine Charles, Nicolas Chassaing, Nicolas Chatron, Benjamin Cogné, Estelle Colin, Valérie Cormier-Daire, Rodolphe Dard, Benjamin Dauriat, Julian Delanne, Jean-François Deleuze, Florence Demurger, Anne-Sophie Denommé-Pichon, Christel Depienne, Anne Dieux Coeslier, Christèle Dubourg, Patrick Edery, salima EL CHEHADEH, Laurence Faivre, Mélanie FRADIN, Aurore Garde, David Geneviève, Brigitte Gilbert-Dussardier, Cyril Goizet, Alice Goldenberg, Evan Gouy, Anne-Marie Guerrot, Anne Guimier, Ines HARZALLAH, Delphine Héron, Bertrand Isidor, Xavier Le Guillou Horn, Boris Keren, Alma Kuechler, Elodie Lacaze, Alinoë Lavillaureix, Daphné Lehalle, Gaetan Lesca, James Lespinasse, Jonathan Levy, Stanislas Lyonnet, Godelieve Morel, Nolwenn Jean Marçais, Sandrine Marlin, Luisa Marsili, Cyril Mignot, Sophie Nambot, Mathilde Nizon, Robert Olaso, Laurent PASQUIER, Laurine Perrin, Florence Petit, Amélie Piton, Fabienne Prieur, Audrey Putoux, Marc Planes, Sylvie Odent, Chloé Quelin, Sylvia Quemener, Mélanie Rama, Marlène RIO, Massimiliano Rossi, Elise Schaefer, Sophie Rondeau, Pascale SAUGIER-VEBER, Thomas Smol, Sabine Sigaudy, Renaud TOURAINE, Frédéric Tran-Mau-Them, Aurélien Trimouille, Clémence Vanlerberghe, Valérie Vantalon, Gabriella Vera, Marie Vincent, Alban Ziegler, Olivier Guillin, Dominique Campion, and Camille Charbonnier
Abstract: Variants of uncertain significance (VUS) are a significant issue for the molecular diagnosis of rare diseases. The publication of episignatures as effective biomarkers of certain Mendelian neurodevelopmental disorders has raised hopes to help classify VUS. However, prediction abilities of most published episignatures have not been independently investigated yet, which is a prerequisite for an informed and rigorous use in a diagnostic setting. We generated DNA methylation data from 102 carriers of (likely) pathogenic variants in ten different genes, 58 VUS carriers, and 25 healthy controls. Combining published episignature information and new validation data with a k-nearest-neighbour classifier within a leave-one-out scheme, we provide unbiased specificity and sensitivity estimates for each of the signatures. Our procedure reached 100% specificity, but the sensitivities unexpectedly spanned a very large spectrum. While ATRX, DNMT3A, KMT2D, and NSD1 signatures displayed a 100% sensitivity, CREBBP-RSTS and one of the CHD8 signatures reached less than 40% sensitivity on our dataset. Remaining Cornelia de Lange syndrome, KMT2A, KDM5C and CHD7 signatures reached 70%-100% sensibility at best with unstable performances, suffering from heterogeneous methylation profiles among cases and rare discordant samples. Our results call for cautiousness and demonstrate that episignatures do not perform equally well. Some signatures are ready for confident use in a diagnostic setting. Yet, it is imperative to characterise the actual validity perimeter and interpretation of each episignature with the help of larger validation sample sizes and in a broader set of episignatures.
Published: 2023
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17. Stankiewicz-Isidor syndrome

Author: Ignacio Briceño, Frédéric Ebstein, Alberto Gómez, Heidi Cope, Wallid Deb, Krzysztof Szczaluba, Hutton M. Kearney, Dominique Bonneau, Elke Krüger, Marie Vincent, Jill A. Rosenfeld, Karin E. M. Diderich, Dominique Bourgeois, Kay Metcalfe, Bryce A. Mendelssohn, Magalie Barth, Solène Conrad, Alanna Strong, Patrick R. Blackburn, Amanda Gerard, McKinsey L. Goodenberger, Benjamin Cogné, Geneviève Baujat, Caroline Camby, Thomas Besnard, Natasha L. Rudy, Karin Dahan, Estelle Colin, Carlos A. Bacino, Caleb Bupp, Christel Thauvin-Robinet, Yolande van Bever, Rafał Płoski, Anne de Saint Martin, Johannes A. Mayr, Ingrid Bader, Yong-Hui Jiang, Virginie Vignard, Kathryn Warren, Judith D. Ranells, Yves Alembik, Joanna Kennedy, Stéphane Bézieau, Bertrand Isidor, Anna C.E. Hurst, Amélie Piton, Sébastien Küry, Ange-Line Bruel, PaweƗ Stankiewicz, Ingrid Scurr, Anja Brehm, and Clinical Genetics
Subjects: Genetics, Phenotype, Intellectual Disability, Molecular phenotype, Humans, Language Development Disorders, Haploinsufficiency, Biology, Genetics (clinical), Musculoskeletal Abnormalities
Abstract: Purpose: Haploinsufficiency of PSMD12 has been reported in individuals with neurodevelopmental phenotypes, including developmental delay/intellectual disability (DD/ID), facial dysmorphism, and congenital malformations, defined as Stankiewicz-Isidor syndrome (STISS). Investigations showed that pathogenic variants in PSMD12 perturb intracellular protein homeostasis. Our objective was to further explore the clinical and molecular phenotypic spectrum of STISS. Methods: We report 24 additional unrelated patients with STISS with various truncating single nucleotide variants or copy-number variant deletions involving PSMD12. We explore disease etiology by assessing patient cells and CRISPR/Cas9-engineered cell clones for various cellular pathways and inflammatory status. Results: The expressivity of most clinical features in STISS is highly variable. In addition to previously reported DD/ID, speech delay, cardiac and renal anomalies, we also confirmed preaxial hand abnormalities as a feature of this syndrome. Of note, 2 patients also showed chilblains resembling signs observed in interferonopathy. Remarkably, our data show that STISS patient cells exhibit a profound remodeling of the mTORC1 and mitophagy pathways with an induction of type I interferon-stimulated genes. Conclusion: We refine the phenotype of STISS and show that it can be clinically recognizable and biochemically diagnosed by a type I interferon gene signature.
Published: 2022
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18. Integrative approach to interpret DYRK1A variants, leading to a frequent neurodevelopmental disorder

Author: Marjolaine Willems, Benjamin Durand, Boris Keren, Kristina Pilekær Sørensen, Rosanna Weksberg, Magalie Barth, Christina Fagerberg, Cyril Mignot, Laurence Perrin, Lucas Bronicki, Nathalie Drouot, Imene Boujelbene, Marc Abramowicz, Maria Kibaek, Bertrand Isidor, Thierry Bienvenu, Mathilde Nizon, Perrine Charles, Laurent Pasquier, Yann Herault, Marie Christine Birling, Bruno Delobel, Michel Guipponi, Lydie Burglen, Mélanie Fradin, Anne Sophie Denommé, Florence Demurger, Benjamin Cogné, Sébastien Moutton, Allan Bayat, Frederic Tran Mau Them, Christèle Dubourg, Alice Goldenberg, Christine Francannet, Jean-Louis Mandel, Laurence Faivre, Jérémie Courraud, Anne Marie Guerrot, Julia Metreau, Loréline Genschik, Bénédicte Demeer, Marie Vincent, Mathilde Renaud, Julien Thevenon, Sandrine Passemard, Christine Coubes, Amélie Piton, David Geneviève, Maria del Mar Muniz Moreno, Bénédicte Gérard, Estelle Colin, Valérie Layet, Michèle Mathieu-Dramard, Salima El Chehadeh, Katrine M Johannesen, Julie D. Thompson, Cathrine Elisabeth Tronhjem, Pascale Saugier, Elise Schaefer, Eric Chater-Diehl, Séverine Drunat, Rikke S. Møller, Paul Kuentz, Claire Feger, Albert David, Antonio Vitobello, Marlène Rio, Khaoula Khachnaoui, Joane Svane, Stéphane Auvin, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), The Hospital for sick children [Toronto] (SickKids), Centre hospitalier universitaire de Nantes (CHU Nantes), unité de recherche de l'institut du thorax UMR1087 UMR6291 (ITX), Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Les Hôpitaux Universitaires de Strasbourg (HUS), Hôpital Universitaire de Genève, Children's hospital of Eastern Ontario Research Institute [Ottawa, canada] (CHEO), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université (SU), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Hôpital Arnaud de Villeneuve [CHRU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Université de Montpellier (UM), Hôpital Saint Vincent de Paul de Lille, Groupe Hospitalier de l'Institut Catholique de Lille (GHICL), Centre hospitalier Bretagne Atlantique (Morbihan) (CHBA), Hôpital Robert Debré, CHU Dijon, Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Lipides - Nutrition - Cancer [Dijon - U1231] (LNC), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Hôpital Sud [CHU Rennes], CHU Pontchaillou [Rennes], CHU Clermont-Ferrand, Génomique et Médecine Personnalisée du Cancer et des Maladies Neuropsychiatriques (GPMCND), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Rouen, Normandie Université (NU), The Danish Epilepsy Centre Filadelfia [Dianalund, Denmark], University of Southern Denmark (SDU), Odense University Hospital (OUH), CHU Amiens-Picardie, AP-HP Hôpital Bicêtre (Le Kremlin-Bicêtre), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Imagine - Institut des maladies génétiques (IHU) (Imagine - U1163), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP), CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Odense University Hospital [Odense, Denmark], Centre Hospitalier Universitaire [Grenoble] (CHU), Groupe Hospitalier du Havre, Maladies neurodéveloppementales et neurovasculaires (NeuroDiderot (UMR_S_1141 / U1141)), Institut de Recherche sur le Cancer et le Vieillissement (IRCAN), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), Centre Hospitalier Universitaire de Nice (CHU Nice), Institut Clinique de la Souris, Institut de Génétique et Développement de Rennes (IGDR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Hôpital Cochin [AP-HP], Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg (UNISTRA), University of Toronto, Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université, Sorbonne Université, Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace, Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Strasbourg (UNISTRA), Centre for Integrative Biology - CBI (Inserm U964 - CNRS UMR7104 - IGBMC), Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Unité de recherche de l'institut du thorax (ITX-lab), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), Université de Nantes (UN)-Université de Nantes (UN), Laboratoire de Génétique Médicale (LGM), Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Cellules Souches, Plasticité Cellulaire, Médecine Régénératrice et Immunothérapies (IRMB), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Agence de Biomédecine, Fondation APLM, Fondation Maladies Rares and Fondation Jérome Lejeune, univOAK, Archive ouverte, Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Santé et de la Recherche Médicale (INSERM), Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), and Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [INFO.INFO-AI] Computer Science [cs]/Artificial Intelligence [cs.AI], DYRK1A, [SDV]Life Sciences [q-bio], [SDV.GEN] Life Sciences [q-bio]/Genetics, Protein Serine-Threonine Kinases, Biology, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], Mice, 03 medical and health sciences, 0302 clinical medicine, Neurodevelopmental disorder, Intellectual Disability, medicine, Animals, Humans, Missense mutation, Kinase activity, Gene, Genetics (clinical), Cellular localization, 030304 developmental biology, Genetics, [SDV.GEN]Life Sciences [q-bio]/Genetics, 0303 health sciences, Protein-Tyrosine Kinases, medicine.disease, Phenotype, Human genetics, 3. Good health, 030220 oncology & carcinogenesis, Microcephaly
Abstract: Purpose: DYRK1A syndrome is among the most frequent monogenic forms of intellectual disability (ID). We refined the molecular and clinical description of this disorder and developed tools to improve interpretation of missense variants, which remains a major challenge in human genetics. Methods: We reported clinical and molecular data for 50 individuals with ID harboring DYRK1A variants and developed (1) a specific DYRK1A clinical score; (2) amino acid conservation data generated from 100 DYRK1A sequences across different taxa; (3) in vitro overexpression assays to study level, cellular localization, and kinase activity of DYRK1A mutant proteins; and (4) a specific blood DNA methylation signature. Results: This integrative approach was successful to reclassify several variants as pathogenic. However, we questioned the involvement of some others, such as p.Thr588Asn, still reported as likely pathogenic, and showed it does not cause an obvious phenotype in mice. Conclusion: Our study demonstrated the need for caution when interpreting variants in DYRK1A, even those occurring de novo. The tools developed will be useful to interpret accurately the variants identified in the future in this gene. Graphic abstract: [Figure not available: see fulltext.]
Published: 2021
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19. Improved detection of mitochondrial DNA instability in mitochondrial genome maintenance disorders

Author: Aurélien Trimouille, Naïg Gueguen, C. Rouzier, Pascal Reynier, Christophe Verny, Patrizia Amati-Bonneau, Dominique Bonneau, Marie Laure Martin-Negrier, Claude Jardel, Samira Ait-El-Mkadem Saadi, Magalie Barth, Julien Cassereau, Franck Letournel, David Goudenège, Céline Bris, Benoit Rucheton, Estelle Colin, Magot Armelle, Stéphane Allouche, Sylvie Bannwarth, Véronique Paquis-Flucklinger, Abdel Slama, Yann Péréon, Valérie Desquiret-Dumas, Vincent Procaccio, Guy Lenaers, Pauline Gaignard, and Marco Spinazzi
Subjects: Adult, Genetics, Mitochondrial DNA, Mitochondrial Diseases, Nuclear gene, Mitochondrial disease, Breakpoint, Mitochondrial genome maintenance, High-Throughput Nucleotide Sequencing, Biology, medicine.disease, DNA, Mitochondrial, Heteroplasmy, Human genetics, Mitochondria, Genome, Mitochondrial, medicine, Humans, Gene, Genetics (clinical), Sequence Deletion
Abstract: Diseases caused by defects in mitochondrial DNA (mtDNA) maintenance machinery, leading to mtDNA deletions, form a specific group of disorders. However, mtDNA deletions also appear during aging, interfering with those resulting from mitochondrial disorders. Here, using next-generation sequencing (NGS) data processed by eKLIPse and data mining, we established criteria distinguishing age-related mtDNA rearrangements from those due to mtDNA maintenance defects. MtDNA deletion profiles from muscle and urine patient samples carrying pathogenic variants in nuclear genes involved in mtDNA maintenance (n = 40) were compared with age-matched controls (n = 90). Seventeen additional patient samples were used to validate the data mining model. Overall, deletion number, heteroplasmy level, deletion locations, and the presence of repeats at deletion breakpoints were significantly different between patients and controls, especially in muscle samples. The deletion number was significantly relevant in adults, while breakpoint repeat lengths surrounding deletions were discriminant in young subjects. Altogether, eKLIPse analysis is a powerful tool for measuring the accumulation of mtDNA deletions between patients of different ages, as well as in prioritizing novel variants in genes involved in mtDNA stability.
Published: 2021
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20. New insights into CC2D2A -related Joubert syndrome

Author: Madeleine Harion, Leila Qebibo, Audrey Riquet, Christelle Rougeot, Alexandra Afenjar, Catherine Garel, Malek Louha, Emmanuelle Lacaze, Frédérique Audic-Gérard, Magali Barth, Patrick Berquin, Dominique Bonneau, Frédéric Bourdain, Tiffany Busa, Estelle Colin, Jean-Marie Cuisset, Vincent Des Portes, Nathalie Dorison, Christine Francannet, Bénédicte Héron, Cécile Laroche, Marine Lebrun, Julia Métreau, Sylvie Odent, Laurent Pasquier, Yaumara Perdomo Trujillo, Laurine Perrin, Lucile Pinson, François Rivier, Sabine Sigaudy, Christel Thauvin-Robinet, Ulrike Walther Louvier, Olivier Labayle, Diana Rodriguez, Stéphanie Valence, Lydie Burglen, CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Imagine - Institut des maladies génétiques (IHU) (Imagine - U1163), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Groupe de Recherche sur l'Analyse Multimodale de la Fonction Cérébrale - UMR INSERM_S 1105 (GRAMFC), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Amiens-Picardie, CHU Pontchaillou [Rennes], Institut de Génétique et Développement de Rennes (IGDR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Centre de référence Maladies Rares CLAD-Ouest [Rennes], Physiologie & médecine expérimentale du Cœur et des Muscles [U 1046] (PhyMedExp), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), and Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)
Subjects: phenotype, genotype, [SDV]Life Sciences [q-bio], cerebellar diseases, Genetics, nervous system malformations, Genetics (clinical), genetic testing
Abstract: PurposeIn this study, we describe the phenotype and genotype of the largest cohort of patients with Joubert syndrome (JS) carrying pathogenic variants on one of the most frequent causative genes,CC2D2A.MethodsWe selected 53 patients with pathogenic variants onCC2D2A, compiled and analysed their clinical, neuroimaging and genetic information and compared it to previous literature.ResultsDevelopmental delay (motor and language) was nearly constant but patients had normal intellectual efficiency in 74% of cases (20/27 patients) and 68% followed mainstream schooling despite learning difficulties. Epilepsy was found in only 13% of cases. Only three patients had kidney cysts, only three had genuine retinal dystrophy and no subject had liver fibrosis or polydactyly. Brain MRIs showed typical signs of JS with rare additional features. Genotype–phenotype correlation findings demonstrate a homozygous truncating variant p.Arg950* linked to a more severe phenotype.ConclusionThis study contradicts previous literature stating an association betweenCC2D2A-related JS and ventriculomegaly. Our study implies thatCC2D2A-related JS is linked to positive neurodevelopmental outcome and low rate of other organ defects except for homozygous pathogenic variant p.Arg950*. This information will help modulate patient follow-up and provide families with accurate genetic counselling.
Published: 2022
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21. New insights into

Author: Madeleine, Harion, Leila, Qebibo, Audrey, Riquet, Christelle, Rougeot, Alexandra, Afenjar, Catherine, Garel, Malek, Louha, Emmanuelle, Lacaze, Frédérique, Audic-Gérard, Magali, Barth, Patrick, Berquin, Dominique, Bonneau, Frédéric, Bourdain, Tiffany, Busa, Estelle, Colin, Jean-Marie, Cuisset, Vincent, Des Portes, Nathalie, Dorison, Christine, Francannet, Bénédicte, Héron, Cécile, Laroche, Marine, Lebrun, Julia, Métreau, Sylvie, Odent, Laurent, Pasquier, Yaumara Perdomo, Trujillo, Laurine, Perrin, Lucile, Pinson, François, Rivier, Sabine, Sigaudy, Christel, Thauvin-Robinet, Ulrike Walther, Louvier, Olivier, Labayle, Diana, Rodriguez, Stéphanie, Valence, and Lydie, Burglen
Abstract: In this study, we describe the phenotype and genotype of the largest cohort of patients with Joubert syndrome (JS) carrying pathogenic variants on one of the most frequent causative genes,We selected 53 patients with pathogenic variants onDevelopmental delay (motor and language) was nearly constant but patients had normal intellectual efficiency in 74% of cases (20/27 patients) and 68% followed mainstream schooling despite learning difficulties. Epilepsy was found in only 13% of cases. Only three patients had kidney cysts, only three had genuine retinal dystrophy and no subject had liver fibrosis or polydactyly. Brain MRIs showed typical signs of JS with rare additional features. Genotype-phenotype correlation findings demonstrate a homozygous truncating variant p.Arg950* linked to a more severe phenotype.This study contradicts previous literature stating an association between
Published: 2022

22. Utility of genetic testing for prenatal presentations of hypophosphatasia

Author: Séverine Bacrot, Jean-Pierre Salles, Brigitte Simon-Bouy, Brian Sperelakis-Beedham, Etienne Mornet, Andreas Zankl, Mihelaiti Guberto, Agnès Taillandier, Valérie Porquet-Bordes, Estelle Colin, Deborah Wenkert, Anya Rothenbuhler, Christine Muti, and Christelle Domingues
Subjects: Male, 0301 basic medicine, Endocrinology, Diabetes and Metabolism, Genetic counseling, Hypophosphatasia, Context (language use), 030105 genetics & heredity, Bioinformatics, Biochemistry, 03 medical and health sciences, Fetus, 0302 clinical medicine, Endocrinology, Pregnancy, Prenatal Diagnosis, Genetics, Humans, Medicine, Genetic Testing, Molecular Biology, Alleles, Genetic Association Studies, Genetic testing, medicine.diagnostic_test, business.industry, ALPL, Alkaline Phosphatase, medicine.disease, In utero, Mutation, Female, business, Tissue-nonspecific Alkaline Phosphatase, 030217 neurology & neurosurgery
Abstract: Hypophosphatasia (HPP) is a rare inherited disease affecting bone and dental mineralization due to loss-of-function mutations in the ALPL gene encoding the tissue nonspecific alkaline phosphatase (TNSALP). Prenatal benign HPP (PB HPP) is a rare form of HPP characterized by in utero skeletal manifestations that progressively improve during pregnancy but often still leave symptoms after birth. Because the prenatal context limits the diagnostic tools, the main difficulty for clinicians is to distinguish PB HPP from perinatal lethal HPP, the most severe form of HPP. We previously attempted to improve genotype phenotype correlation with the help of a new classification of variants based on functional testing. Among 46 perinatal cases detected in utero or in the neonatal period for whose ALPL variants could be classified, imaging alone was thought to clearly diagnose severe lethal HPP in 35 cases, while in 11 cases, imaging abnormalities could not distinguish between perinatal lethal and BP HPP. We show here that our classification of ALPL variants may improve the ability to distinguish between perinatal lethal and PB HPP in utero.
Published: 2021
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23. Discovery of a genetic module essential for assigning left–right asymmetry in humans and ancestral vertebrates

Author: Emmanuelle Szenker-Ravi, Tim Ott, Muznah Khatoo, Anne Moreau de Bellaing, Wei Xuan Goh, Yan Ling Chong, Anja Beckers, Darshini Kannesan, Guillaume Louvel, Priyanka Anujan, Vydianathan Ravi, Carine Bonnard, Sébastien Moutton, Patric Schoen, Mélanie Fradin, Estelle Colin, André Megarbane, Linda Daou, Ghassan Chehab, Sylvie Di Filippo, Caroline Rooryck, Jean-François Deleuze, Anne Boland, Nicolas Arribard, Rukiye Eker, Sumanty Tohari, Alvin Yu-Jin Ng, Marlène Rio, Chun Teck Lim, Birgit Eisenhaber, Frank Eisenhaber, Byrappa Venkatesh, Jeanne Amiel, Hugues Roest Crollius, Christopher T. Gordon, Achim Gossler, Sudipto Roy, Tania Attie-Bitach, Martin Blum, Patrice Bouvagnet, Bruno Reversade, ACS - Heart failure & arrhythmias, ARD - Amsterdam Reproduction and Development, Genome Institute of Singapore (GIS), University of Hohenheim, Groupement Hospitalier Lyon-Est (GHE), Hospices Civils de Lyon (HCL), Institute of Molecular and Cell Biology [Singapore, Singapore] (IMCB / A*STAR), National University Hospital [Singapore] (NUH), Centre Hospitalier Universitaire de Liège (CHU-Liège), Hannover Medical School [Hannover] (MHH), REBIRTH Cluster of Excellence [Hannover], Institut de biologie de l'ENS Paris (IBENS), Département de Biologie - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Ecologie Systématique et Evolution (ESE), AgroParisTech-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Hammersmith Hospital NHS Imperial College Healthcare, Skin Research Institute of Singapore [Singapore, Singapore] (SRIS / A*STAR), Maison de Santé Protestante de Bordeaux-Bagatelle (MSPB), Praxis Dr Patric SCHÖN [Oberschleissheim, Germany] (2PS), CHU Pontchaillou [Rennes], Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), Gilbert and Rose-Marie Chagoury School of Medicine [Lebanese American University], Lebanese American University (LAU), Institut Jérôme Lejeune, Université Saint-Joseph de Beyrouth (USJ), Lebanese University [Beirut] (LU), Cardiovasculaire, métabolisme, diabétologie et nutrition (CarMeN), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Hospices Civils de Lyon (HCL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) (U1211 INSERM/MRGM), Université de Bordeaux (UB)-Groupe hospitalier Pellegrin-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de Recherche en Génomique Humaine (CNRGH), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Hôpital Universitaire des Enfants Reine Fabiola [Bruxelles, Belgique] (HUDERF), Istanbul University, Assistance publique-Hôpitaux de Paris - Espace éthique (AP-HP Espace éthique), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHU Necker - Enfants Malades [AP-HP], Imagine - Institut des maladies génétiques (IHU) (Imagine - U1163), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Singapore Institute of Food and Biotechnology Innovation [Singapore, Singapore] (SIFBI / A*STAR ), Bioinformatics Institute [Singapore, Singapore] (BII / A*STAR), Nanyang Technological University [Singapour], National University of Singapore (NUS), Service de Génétique Médicale [CHU Necker], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Maison de la Femme de la Mère et de l'Enfant [CHU de la Martinique] (MFME [Fort de France]), CHU de la Martinique [Fort de France], Koc University School of Medicine [Istanbul, Turkey] (KUSOM), and CarMeN, laboratoire
Subjects: [SDV] Life Sciences [q-bio], Loss of Function Mutation, [SDV]Life Sciences [q-bio], Vertebrates, Metalloproteases, Genetics, Animals, Humans, Proteins, Gene Regulatory Networks, Cilia, Biological Evolution, Body Patterning
Abstract: Erratum in Publisher Correction: Discovery of a genetic module essential for assigning left-right asymmetry in humans and ancestral vertebrates. Szenker-Ravi E, Ott T, Khatoo M, Moreau de Bellaing A, Goh WX, Chong YL, Beckers A, Kannesan D, Louvel G, Anujan P, Ravi V, Bonnard C, Moutton S, Schoen P, Fradin M, Colin E, Megarbane A, Daou L, Chehab G, Di Filippo S, Rooryck C, Deleuze JF, Boland A, Arribard N, Eker R, Tohari S, Ng AY, Rio M, Lim CT, Eisenhaber B, Eisenhaber F, Venkatesh B, Amiel J, Crollius HR, Gordon CT, Gossler A, Roy S, Attie-Bitach T, Blum M, Bouvagnet P, Reversade B.Nat Genet. 2022 Jun;54(6):906. doi: 10.1038/s41588-022-01053-8.PMID: 35304595 No abstract available.; International audience; The vertebrate left-right axis is specified during embryogenesis by a transient organ: the left-right organizer (LRO). Species including fish, amphibians, rodents and humans deploy motile cilia in the LRO to break bilateral symmetry, while reptiles, birds, even-toed mammals and cetaceans are believed to have LROs without motile cilia. We searched for genes whose loss during vertebrate evolution follows this pattern and identified five genes encoding extracellular proteins, including a putative protease with hitherto unknown functions that we named ciliated left-right organizer metallopeptide (CIROP). Here, we show that CIROP is specifically expressed in ciliated LROs. In zebrafish and Xenopus, CIROP is required solely on the left side, downstream of the leftward flow, but upstream of DAND5, the first asymmetrically expressed gene. We further ascertained 21 human patients with loss-of-function CIROP mutations presenting with recessive situs anomalies. Our findings posit the existence of an ancestral genetic module that has twice disappeared during vertebrate evolution but remains essential for distinguishing left from right in humans.
Published: 2022
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24. MYT1L-associated neurodevelopmental disorder: description of 40 new cases and literature review of clinical and molecular aspects

Author: James W. Wheless, Thierry Frebourg, Robert Olaso, Rosemarie Smith, Kelly Nori, François Lecoquierre, Delphine Héron, Roseline Caumes, Anne Boland, Ange-Line Bruel, Candy Kumps, Gaël Nicolas, Sarah Stewart, Sophie Rondeau, Diane Doummar, Marlène Rio, Giulia Barcia, Anne-Marie Guerrot, Gwenaël Le Guyader, Alexandra Afenjar, Sarah Vergult, Karine Poirier, Juliette Coursimault, Jennifer Morrison, Amy Kritzer, Anne-Sophie Alaix, Rebecca Hernan, Anne-Sophie Denommé-Pichon, Sabine Sigaudy, Christine Coubes, Pascale Saugier-Veber, Francisca Millan Zamora, Austin Larson, Michelle M. Morrow, Christine Poitou, Björn Menten, Mathilde Nizon, Thomas Smol, Elise Schaefer, Bénédicte Gérard, Charles Coutton, Salima El Chehadeh, Fanggeng Zou, Stéphanie Valence, Anita Shanmugham, Wendy K. Chung, Bert Callewaert, Christina Kresge, Arnold Munnich, Beth A. Pletcher, Laurence Faivre, Estelle Colin, Laurence Colleaux, Patricia G Wheeler, Annelies Dheedene, Frédéric Tran Mau-Them, Jean-François Deleuze, Claude Houdayer, Jeanne Amiel, Frédéric Bilan, Marine Tessarech, Bertrand Isidor, Guillaume Jouret, Cyril Mignot, Benjamin Cogné, Shuxi Liu, Boris Keren, Françoise Devillard, Catherine Schramm, Margaret Helm, Université de Rouen Normandie (UNIROUEN), Normandie Université (NU), GeneDx [Gaithersburg, MD, USA], Centre hospitalier universitaire de Poitiers (CHU Poitiers), Université Bourgogne Franche-Comté [COMUE] (UBFC), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), Institut de génétique médicale d’Alsace, Centre hospitalier universitaire de Nantes (CHU Nantes), Hôpital Trousseau, Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Sorbonne Université (SU), Institute for Advanced Biosciences / Institut pour l'Avancée des Biosciences (Grenoble) (IAB), Centre Hospitalier Universitaire [Grenoble] (CHU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Etablissement français du sang - Auvergne-Rhône-Alpes (EFS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), CHU Grenoble, Institut Necker Enfants-Malades (INEM - UM 111 (UMR 8253 / U1151)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Marseille medical genetics - Centre de génétique médicale de Marseille (MMG), Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Ghent University Hospital, Columbia University Irving Medical Center (CUIMC), University of Colorado Anschutz [Aurora], University of Tennessee System, Rutgers New Jersey Medical School (NJMS), Rutgers University System (Rutgers), Université de Lille, Hôpital de la Timone [CHU - APHM] (TIMONE), CHU Montpellier, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Maine Medical Center, Arnold Palmer Hospital, Boston Children's Hospital, National Center of Genetics, Centre National de Recherche en Génomique Humaine (CNRGH), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), and ANR-10-INBS-0009,France-Génomique,Organisation et montée en puissance d'une Infrastructure Nationale de Génomique(2010)
Subjects: Male, Bioinformatics, Epilepsy, 0302 clinical medicine, Neurodevelopmental disorder, MESH: Child, Intellectual disability, Missense mutation, MESH: Obesity, MESH: Genetic Variation, MESH: Nerve Tissue Proteins, Child, Genetics (clinical), MESH: Genetic Association Studies, MESH: Heterozygote, 0303 health sciences, MESH: Transcription Factors, MESH: Infant, 3. Good health, Phenotype, MESH: Feeding and Eating Disorders, MESH: Young Adult, Child, Preschool, MESH: Epilepsy, Learning disability, Female, medicine.symptom, Adult, Heterozygote, Adolescent, Language delay, Nerve Tissue Proteins, Biology, MESH: Phenotype, MESH: Language Development Disorders, Feeding and Eating Disorders, Young Adult, 03 medical and health sciences, Genetics, medicine, Humans, Language Development Disorders, Obesity, Genetic Association Studies, 030304 developmental biology, MESH: Neurodevelopmental Disorders, MESH: Adolescent, MESH: Humans, MESH: Child, Preschool, Genetic Variation, Infant, MESH: Adult, medicine.disease, Human genetics, MESH: Male, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Neurodevelopmental Disorders, Autism, MESH: Female, 030217 neurology & neurosurgery, Transcription Factors
Abstract: International audience; Pathogenic variants of the myelin transcription factor-1 like (MYT1L) gene include heterozygous missense, truncating variants and 2p25.3 microdeletions and cause a syndromic neurodevelopmental disorder (OMIM#616,521). Despite enrichment in de novo mutations in several developmental disorders and autism studies, the data on clinical characteristics and genotype-phenotype correlations are scarce, with only 22 patients with single nucleotide pathogenic variants reported. We aimed to further characterize this disorder at both the clinical and molecular levels by gathering a large series of patients with MYT1L-associated neurodevelopmental disorder. We collected genetic information on 40 unreported patients with likely pathogenic/pathogenic MYT1L variants and performed a comprehensive review of published data (total = 62 patients). We confirm that the main phenotypic features of the MYT1L-related disorder are developmental delay with language delay (95%), intellectual disability (ID, 70%), overweight or obesity (58%), behavioral disorders (98%) and epilepsy (23%). We highlight novel clinical characteristics, such as learning disabilities without ID (30%) and feeding difficulties during infancy (18%). We further describe the varied dysmorphic features (67%) and present the changes in weight over time of 27 patients. We show that patients harboring highly clustered missense variants in the 2-3-ZNF domains are not clinically distinguishable from patients with truncating variants. We provide an updated overview of clinical and genetic data of the MYT1L-associated neurodevelopmental disorder, hence improving diagnosis and clinical management of these patients.
Published: 2022
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25. Phenotypic spectrum and genomics of undiagnosed arthrogryposis multiplex congenital

Author: Ivo Gut, Sarah Grotto, Céline Bellesme, Arnold Munnich, Cyril Gitiaux, Jeanne Amiel, Chloé Quélin, Annie Laquerrière, Suonavy Khung, Hanitra Ranjatoelina-Randrianaivo, Luc Rigonnot, Christine Francannet, Loic Quevarec, Jérôme Bouligand, Fabienne Prieur, Alexandra Benachi, Valérie Cormier-Daire, Laurence Perrin, Judith Melki, Pierre-Simon Jouk, Flora Nolent, Tania Attié-Bitach, Delphine Héron, Marie-Line Jacquemont, Claire Beneteau, Fabien Guimiot, Laetitia Lambert, Sandra Mercier, Valérie Biancalana, Fanny Laffargue, Elise Boucher, Jean-Louis Bessereau, P. Landrieu, Annick Toutain, Alain Verloes, Alice Goldenberg, Philippe Latour, Dominique Martin-Coignard, Anne Guiochon-Mantel, Dan Mejlachowicz, Damien Sternberg, Haluk Topaloglu, Bruno Eymard, Géraldine Viot, Catherine Fallet-Bianco, Julien Saada, Isabelle Desguerre, Marie-Hélène Saint-Frison, Catherine Vincent-Delorme, Sophie Blesson, Radka Stoeva, Alexandre J. Vivanti, Martine Bucourt, Pascaline Letard, Jérome Maluenda, Laurence Loeuillet, Lionel Van Maldergem, Didier Lacombe, Marcel Tawk, Michèle Granier, Stanislas Lyonnet, Anne-Lise Delezoide, Andrée Delahaye-Duriez, André Mégarbané, Marie Gonzales, Florence Petit, Juliette Piard, Laurence Faivre, Helene Verhelst, Bettina Bessières, Sabine Sigaudy, Sandra Whalen, Valérie Layet, Yline Capri, Fanny Pelluard, Emanuela Abiusi, Klaus Dieterich, Marie Vincent, Marine Legendre, Dana Jaber, Romulus Grigorescu, Florent Marguet, Eric Bieth, Helge Amthor, Christine Barnerias, Estelle Colin, Laetitia Trestard, Mathilde Nizon, Jelena Martinovic, Daniel Amram, and Nicoletta Resta
Subjects: musculoskeletal diseases, Artrogriposi múltiple congènita, Settore BIO/18 - GENETICA, human genetics, neuromuscular diseases, Genomics, Biology, CONTRACTURES, CLASSIFICATION, diseases, symbols.namesake, Diagnòstic, Gene mapping, arthrogryposis multiplex congenita, Exome Sequencing, OF-FUNCTION MUTATIONS, Genetics, Medicine and Health Sciences, genomics, Humans, Genetics (clinical), Exome sequencing, Arthrogryposis, Sanger sequencing, Arthrogryposis multiplex congenita, Genetic heterogeneity, SPINAL MUSCULAR-ATROPHY, Proteins, nervous system malformations, DYSTROPHY, Disease gene identification, GENE, Human genetics, Pedigree, ETIOLOGY, Phenotype, symbols, neuromuscular, Genètica, Transcription Factors
Abstract: BackgroundArthrogryposis multiplex congenita (AMC) is characterised by congenital joint contractures in two or more body areas. AMC exhibits wide phenotypic and genetic heterogeneity. Our goals were to improve the genetic diagnosis rates of AMC, to evaluate the added value of whole exome sequencing (WES) compared with targeted exome sequencing (TES) and to identify new genes in 315 unrelated undiagnosed AMC families.MethodsSeveral genomic approaches were used including genetic mapping of disease loci in multiplex or consanguineous families, TES then WES. Sanger sequencing was performed to identify or validate variants.ResultsWe achieved disease gene identification in 52.7% of AMC index patients including nine recently identified genes (CNTNAP1, MAGEL2, ADGRG6, ADCY6, GLDN, LGI4, LMOD3, UNC50 and SCN1A). Moreover, we identified pathogenic variants in ASXL3 and STAC3 expanding the phenotypes associated with these genes. The most frequent cause of AMC was a primary involvement of skeletal muscle (40%) followed by brain (22%). The most frequent mode of inheritance is autosomal recessive (66.3% of patients). In sporadic patients born to non-consanguineous parents (n=60), de novo dominant autosomal or X linked variants were observed in 30 of them (50%).ConclusionNew genes recently identified in AMC represent 21% of causing genes in our cohort. A high proportion of de novo variants were observed indicating that this mechanism plays a prominent part in this developmental disease. Our data showed the added value of WES when compared with TES due to the larger clinical spectrum of some disease genes than initially described and the identification of novel genes.
Published: 2022

26. Congenital hypothyroidism and hearing loss without inner ear malformation: Think <scp> TPO </scp>

Author: Alban Ziegler, Régis Coutant, Dominique Bonneau, Stéphanie Rouleau, Xavier Dieu, Nathalie Bouzamondo, Patrice Rodien, Sophie Boucher, Natacha Bouhours, Anne-Sophie Denommé-Pichon, Estelle Colin, Tanguy Jean Yves, and Delphine Prunier
Subjects: Pediatrics, medicine.medical_specialty, Hearing loss, Inner ear malformation, business.industry, Genetics, medicine, medicine.symptom, medicine.disease, business, Genetics (clinical), Congenital hypothyroidism
Published: 2020
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27. ACO2 clinicobiological dataset with extensive phenotype ontology annotation

Author: Dan Milea, Khadidja Guehlouz, Patrizia Amati-Bonneau, Dominique Bonneau, Thomas Foulonneau, Céline Bris, Guy Lenaers, Johan T. den Dunnen, Philippe Gohier, Vincent Procaccio, Valérie Desquiret-Dumas, Pascal Reynier, Estelle Colin, Marc Ferré, and Majida Charif
Subjects: Statistics and Probability, Data Descriptor, Science, Computational biology, Library and Information Sciences, Biology, Education, Optic neuropathy, Annotation, Human Phenotype Ontology, medicine, Humans, Aconitate Hydratase, Thesaurus (information retrieval), Neurodegenerative diseases, medicine.disease, Phenotype, Computer Science Applications, Metadata, Optic Atrophy, Variome, Gene Ontology, Phenotype ontology, Mutation, Optic nerve diseases, Statistics, Probability and Uncertainty, Genetic databases, Information Systems
Abstract: Pathogenic variants of the aconitase 2 gene (ACO2) are responsible for a broad clinical spectrum involving optic nerve degeneration, ranging from isolated optic neuropathy with recessive or dominant inheritance, to complex neurodegenerative syndromes with recessive transmission. We created the first public locus-specific database (LSDB) dedicated to ACO2 within the “Global Variome shared LOVD” using exclusively the Human Phenotype Ontology (HPO), a standard vocabulary for describing phenotypic abnormalities. All the variants and clinical cases listed in the literature were incorporated into the database, from which we produced a dataset. We followed a rational and comprehensive approach based on the HPO thesaurus, demonstrating that ACO2 patients should not be classified separately between isolated and syndromic cases. Our data highlight that certain syndromic patients do not have optic neuropathy and provide support for the classification of the recurrent pathogenic variants c.220C>G and c.336C>G as likely pathogenic. Overall, our data records demonstrate that the clinical spectrum of ACO2 should be considered as a continuum of symptoms and refines the classification of some common variants., Measurement(s) sequence_variant • Phenotypic variability Technology Type(s) DNA sequencing • Ophthalmologist Factor Type(s) sequence variant • phenotype Sample Characteristic - Organism Homo sapiens Machine-accessible metadata file describing the reported data: 10.6084/m9.figshare.13574528
Published: 2021

28. Bi-allelic variants in IPO8 cause a connective tissue disorder associated with cardiovascular defects, skeletal abnormalities, and immune dysregulation

Author: Karine Duroure, Estelle Colin, Thomas Edouard, Ludovic Martin, Linda Grimaud, Lyndon Gallacher, George McGillivray, Guy Lenaers, Valérie Desquiret-Dumas, Clarisse Billon, Anne Breton, Mohammed Zarhrate, Emmanuel Mas, Dominique Bonneau, Lynn Pais, Daniel Henrion, Thomas Haaf, Reza Maroofian, Marianna Parlato, Frank M. Ruemmele, Anne-Laure Guihot, Anaïs Philippe, Ehsan Ghayoor Karimiani, Pauline E. Schneeberger, Stanislas Lyonnet, Bernadette Bègue, Bruno Moulin, Rémi Duclaux-Loras, Nicolas Cagnard, Michael Frank, Laurence Faivre, Ruben Attali, Yves Alembik, Filippo Del Bene, Kerstin Kutsche, Céline Revenu, Fabienne Charbit-Henrion, Katta M. Girisha, Aboulfazl Rad, Eyal Reinstein, Shalini S. Nayak, Barbara Vona, Nadine Cerf-Bensussan, Caroline Lekszas, Shay Tzur, Alban Ziegler, Susan M. White, Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), MitoVasc - Physiopathologie Cardiovasculaire et Mitochondriale (MITOVASC), Université d'Angers (UA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Laboratory of Intestinal Immunity (Equipe Inserm U1163), Imagine - Institut des maladies génétiques (IHU) (Imagine - U1163), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Institut de la Vision, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Institut de Recherche en Santé Digestive (IRSD ), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Ingénierie Radioprotection Sûreté Démantèlement (IRSD), Centre National de la Recherche Scientifique (CNRS), Geroscience and rejuvenation research center (RESTORE), Université de Toulouse (UT)-Université de Toulouse (UT)-EFS-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Hôpital Européen Georges Pompidou [APHP] (HEGP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO), Embryology and genetics of human malformation, CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), FHU TRANSLAD (CHU de Dijon), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Hôpital de Hautepierre [Strasbourg], Nouvel Hôpital Civil de Strasbourg, Tel Aviv University (TAU), Emedgene Technologies [Tel Aviv], Murdoch Children's Research Institute (MCRI), Universitaetsklinikum Hamburg-Eppendorf = University Medical Center Hamburg-Eppendorf [Hamburg] (UKE), Kasturba Medical College, Manipal, Massachusetts Institute of Technology (MIT), University College of London [London] (UCL), Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen, St George's, University of London, University of Würzburg = Universität Würzburg, Fondation Princesse Grace, Fondation Maladies Rares, Harbig Family Foundation, Royal Children's Hospital Foundation, University of Tubingen (2545-1-0), Federal Ministry of Education and Research (01DQ17003 to K.K.), Indian Council of Medical Research (file no. 5/7/1508/2016 to K.M.G), National Human Genome Research Institute, the National Eye Institute, and the National Heart, Lung, and Blood Institute grant UM1 HG008900, National Human Genome Research Institute grant R01 HG009141, Victorian Government's Operational Infrastructure Support Program, ANR-10-IAHU-0001,Imagine,Institut Hospitalo-Universitaire Imagine(2010), ANR-18-IAHU-0001,FOReSIGHT,Enabling Vision Restoration(2018), European Project: 661527,H2020,H2020-MSCA-IF-2014,NMJALS(2015), European Project: 339407,EC:FP7:ERC,ERC-2013-ADG,IMMUNOBIOTA(2014), Service de génétique [Angers], Université d'Angers (UA)-Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), Autophagie infection et immunité - Autophagy Infection Immunity (APY), Centre International de Recherche en Infectiologie - UMR (CIRI), Institut National de la Santé et de la Recherche Médicale (INSERM)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Génétique et Biologie du Développement, Institut Curie [Paris]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP), Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Physiopathologie Cardiovasculaire et Mitochondriale (MITOVASC), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole Nationale Vétérinaire de Toulouse (ENVT), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-EFS-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Embryology and genetics of human malformation (Equipe Inserm U1163), SEGUIN, Nathalie, Instituts Hospitalo-Universitaires - Institut Hospitalo-Universitaire Imagine - - Imagine2010 - ANR-10-IAHU-0001 - IAHU - VALID, Enabling Vision Restoration - - FOReSIGHT2018 - ANR-18-IAHU-0001 - IAHU - VALID, In vivo analysis of neuromuscular junction stability in zebrafish models of amyotrophic lateral sclerosis - NMJALS - - H20202015-11-16 - 2017-11-15 - 661527 - VALID, Host-microbiota interactions across the gut immune system:lessons from early onset inflammatory bowel diseases and from gnotobiotic mice - IMMUNOBIOTA - - EC:FP7:ERC2014-03-01 - 2019-02-28 - 339407 - VALID, École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Male, Connective Tissue Disorder, Loss of Heterozygosity, [SDV.GEN] Life Sciences [q-bio]/Genetics, medicine.disease_cause, IPO8, TGF-β signaling, Pathogenesis, 0302 clinical medicine, Loss of Function Mutation, Transforming Growth Factor beta, connective tissue disorder, Child, Connective Tissue Diseases, Zebrafish, Genetics (clinical), Karyopherin, chemistry.chemical_classification, [SDV.MP.VIR] Life Sciences [q-bio]/Microbiology and Parasitology/Virology, Immunity, Cellular, 0303 health sciences, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, Middle Aged, beta Karyopherins, Pedigree, arterial dilatation, Cell biology, [SDV.MHEP.CSC] Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Phenotype, medicine.anatomical_structure, Cardiovascular Diseases, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, Female, Bone Diseases, Signal Transduction, Adult, Adolescent, Connective tissue, Biology, Importin 8, Young Adult, 03 medical and health sciences, [SDV.IMM.VAC] Life Sciences [q-bio]/Immunology/Vaccinology, [SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Report, Genetics, medicine, Animals, Humans, 030304 developmental biology, [SDV.GEN]Life Sciences [q-bio]/Genetics, Infant, Immune dysregulation, Loeys-Dietz syndrome, biology.organism_classification, joint hyperlaxity, chemistry, [SDV.IMM.VAC]Life Sciences [q-bio]/Immunology/Vaccinology, 030217 neurology & neurosurgery, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Transforming growth factor
Abstract: International audience; Dysregulated transforming growth factor TGF-beta signaling underlies the pathogenesis of genetic disorders affecting the connective tissue such as Loeys-Dietz syndrome. Here, we report 12 individuals with bi-allelic loss-of-function variants in IPO8 who presented with a syndromic association characterized by cardio-vascular anomalies, joint hyperlaxity, and various degree of dysmorphic features and developmental delay as well as immune dysregulation; the individuals were from nine unrelated families. Importin 8 belongs to the karyopherin family of nuclear transport receptors and was previously shown to mediate TGF-beta-dependent SMADs trafficking to the nucleus in vitro. The important in vivo role of IPO8 in pSMAD nuclear translocation was demonstrated by CRISPR/Cas9-mediated inactivation in zebrafish. Consistent with IPO8's role in BMP/TGF-beta signaling, ipo8(-/-) zebrafish presented mild to severe dorso-ventral patterning defects during early embryonic development. Moreover, ipo8(-/-) zebrafish displayed severe cardiovascular and skeletal defects that mirrored the human phenotype. Our work thus provides evidence that IPO8 plays a critical and non-redundant role in TGF-beta signaling during development and reinforces the existing link between TGF-beta signaling and connective tissue defects.
Published: 2021
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29. Maladie sans diagnostic ou ultra-rare : de la quête de réponses au chemin de l’acceptation

Author: Bérengère Thibault, Rozenn Carasco, Caroline Yameogo, Isabelle Bazanté, Dominique Bonneau, Mathieu Ferte, Catherine Pateron, Estelle Colin, Sonia Girard, Alexandra Costes, and Murielle Ribeiro
Published: 2019
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30. Confirmation that variants in TTI2 are responsible for autosomal recessive intellectual disability

Author: Estelle Colin, Céline Bris, Patricia I. Bader, Stéphanie Rouleau, Dominique Bonneau, Alban Ziegler, Kirsty McWalter, Ganka Douglas, Régis Coutant, Clara Houdayer, GeneDx [Gaithersburg, MD, USA], Physiopathologie Cardiovasculaire et Mitochondriale (MITOVASC), Université d'Angers (UA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Néonatalogie, Centre Hospitalier Universitaire d'Angers (CHU Angers), and PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM)
Subjects: 0301 basic medicine, Adolescent, [SDV]Life Sciences [q-bio], Genes, Recessive, premature ovarian failure, 030105 genetics & heredity, Compound heterozygosity, 03 medical and health sciences, recessive intellectual disability, Intellectual Disability, Heterotrimeric G protein, Intellectual disability, Genetics, medicine, Humans, Genetic Predisposition to Disease, Child, Mechanistic target of rapamycin, Genetic Association Studies, Genetics (clinical), triple T complex, Progressive microcephaly, biology, Kinase, Intracellular Signaling Peptides and Proteins, Facies, Genetic Variation, Infant, TTI2, medicine.disease, Phenotype, Radiography, 030104 developmental biology, Chaperone (protein), biology.protein, Female
Abstract: International audience; TTI2 (MIM 614126) has been described as responsible for autosomal recessive intellectual disability (ID; MRT39, MIM:615541) in only two inbred families. Here, we give an account of two individuals from two unrelated outbred families harbouring compound heterozygous TTI2 pathogenic variants. Together with severe ID, progressive microcephaly, scoliosis and sleeping disorder are the most striking features in the two individuals concerned. TTI2, together with TTI1 and TELO2, encode proteins that constitute the triple T heterotrimeric complex. This TTT complex interacts with the HSP90 and R2TP to form a super-complex that has a chaperone function stabilising and maturing a number of kinases, such as ataxia-telangiectasia mutated and mechanistic target of rapamycin, which are key regulators of cell proliferation and genome maintenance. Pathogenic variants in TTI2 logically result in a phenotype close to that caused by TELO2 variants.
Published: 2019
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31. Missense variants in DPYSL5 cause a neurodevelopmental disorder with corpus callosum agenesis and cerebellar abnormalities

Author: Stéphane Bézieau, Médéric Jeanne, Anne Sophie Denommé-Pichon, Jason Laufman, William B. Dobyns, Sébastien Küry, Judith Halewa, Elliott H. Sherr, Dominique Bonneau, Julie Vogt, Sophie Blesson, Hélène Demory, Jérôme Honnorat, Helene Cox, Séverine Audebert-Bellanger, Marie Laure Vuillaume, Sylviane Marouillat, Estelle Colin, Avgi Andreou, Emanuela Argilli, Bertrand Isidor, Bernhard Lohkamp, Miroslava Hancarova, Rajesh Khanna, Davit Babikyan, Sarka Bendova, Kimberly A. Aldinger, Aubin Moutal, Saskia M. Maas, Marjon van Slegtenhorst, Annick Toutain, Sylvie Odent, Rose Anne Thépault, Natella Kostandyan, Eleina M. England, Zdenek Sedlacek, Richard Redon, M. Mahdi Motazacker, Frédéric Laumonnier, Brigitte Gilbert-Dussardier, Grazia M.S. Mancini, Imagerie et cerveau (iBrain - Inserm U1253 - UNIV Tours ), Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), University of Arizona, Amsterdam UMC - Amsterdam University Medical Center, Erasmus University Medical Center [Rotterdam] (Erasmus MC), Birmingham Women's and Children's NHS Foundation Trust, University of Akron, Yerevan State Medical University after Mkhitar Heratsi, Charles University [Prague] (CU), Center for Integrative Brain Research, University of Washington [Seattle], University of California [Los Angeles] (UCLA), University of California (UC), Broad Institute of MIT and Harvard (BROAD INSTITUTE), Harvard Medical School [Boston] (HMS)-Massachusetts Institute of Technology (MIT)-Massachusetts General Hospital [Boston], MitoVasc - Physiopathologie Cardiovasculaire et Mitochondriale (MITOVASC), Université d'Angers (UA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Lipides - Nutrition - Cancer [Dijon - U1231] (LNC), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Centre hospitalier universitaire de Poitiers (CHU Poitiers), Centre hospitalier universitaire de Nantes (CHU Nantes), Institut de Génétique et Développement de Rennes (IGDR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), CHU Pontchaillou [Rennes], Institut NeuroMyoGène (INMG), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Karolinska Institutet [Stockholm], National Human Genome Research Institute, Ministry of Health of the Czech Republic, DGOS, Wellcome Trust, Chard-Hutchinson, Xavier, Université de Tours-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), Amsterdam UMC, University of California, Physiopathologie Cardiovasculaire et Mitochondriale (MITOVASC), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Santé et de la Recherche Médicale (INSERM), Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Clinical Genetics, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Human Genetics, ANS - Cellular & Molecular Mechanisms, ANS - Complex Trait Genetics, and ACS - Pulmonary hypertension & thrombosis
Subjects: Models, Molecular, Male, 0301 basic medicine, Hydrolases, [SDV]Life Sciences [q-bio], Hippocampal formation, Medical and Health Sciences, 0302 clinical medicine, Neurodevelopmental disorder, Tubulin, Models, Neurotrophic factors, Cerebellum, Intellectual disability, 2.1 Biological and endogenous factors, Missense mutation, Aetiology, Child, dendrite branching, Genetics (clinical), de novo missense variants, Pediatric, Genetics & Heredity, DPYSL5, Biological Sciences, [SDV] Life Sciences [q-bio], corpus callosum agenesis, Mental Health, Child, Preschool, Neurological, Female, Microtubule-Associated Proteins, Adult, Neurite, Intellectual and Developmental Disabilities (IDD), primary neuronal cultures, Mutation, Missense, Biology, Young Adult, 03 medical and health sciences, Rare Diseases, Mediator, Report, Intellectual Disability, Genetics, medicine, Humans, Preschool, Corpus Callosum Agenesis, brain malformation, Neurosciences, Molecular, medicine.disease, neurodevelopmental disorder, Brain Disorders, 030104 developmental biology, Neurodevelopmental Disorders, Mutation, Missense, Agenesis of Corpus Callosum, Neuroscience, 030217 neurology & neurosurgery
Abstract: International audience; The collapsin response mediator protein (CRMP) family proteins are intracellular mediators of neurotrophic factors regulating neurite structure/spine formation and are essential for dendrite patterning and directional axonal pathfinding during brain developmental processes. Among this family, CRMP5/DPYSL5 plays a significant role in neuronal migration, axonal guidance, dendrite outgrowth, and synapse formation by interacting with microtubules. Here, we report the identification of missense mutations in DPYSL5 in nine individuals with brain malformations, including corpus callosum agenesis and/or posterior fossa abnormalities, associated with variable degrees of intellectual disability. A recurrent de novo p.Glu41Lys variant was found in eight unrelated patients, and a p.Gly47Arg variant was identified in one individual from the first family reported with Ritscher-Schinzel syndrome. Functional analyses of the two missense mutations revealed impaired dendritic outgrowth processes in young developing hippocampal primary neuronal cultures. We further demonstrated that these mutations, both located in the same loop on the surface of DPYSL5 monomers and oligomers, reduced the interaction of DPYSL5 with neuronal cytoskeleton-associated proteins MAP2 and βIII-tubulin. Our findings collectively indicate that the p.Glu41Lys and p.Gly47Arg variants impair DPYSL5 function on dendritic outgrowth regulation by preventing the formation of the ternary complex with MAP2 and βIII-tubulin, ultimately leading to abnormal brain development. This study adds DPYSL5 to the list of genes implicated in brain malformation and in neurodevelopmental disorders.
Published: 2021
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32. Integrative approach to interpret DYRK1A variants, leading to a frequent neurodevelopmental disorder

Author: Anne-Sophie Denommé, Christine Francannet, Loréline Genschik, Claire Feger, Maria Kibaek, Imene Boujelbene, Paul Kuentz, Michel Guipponi, Marie-Christine Birling, Sébastien Moutton, Allan Bayat, Frederic Tran Mau Them, Mathilde Renaud, Joane Svane, Yann Herault, Sandrine Passemard, Christèle Dubourg, Mélanie Fradin, Marjolaine Willems, Julien Thevenon, Rosanna Weksberg, Bertrand Isidor, David Geneviève, Benjamin Cogné, Magalie Barth, Laurence Faivre, Jérémie Courraud, Boris Keren, Albert David, Laurence Perrin, Anne-Marie Guerrot, Christine Coubes, Thierry Bienvenu, Alice Goldenberg, Bénédicte Gérard, Amélie Piton, Lucas Bronicki, Julia Metreau, Mathilde Nizon, Elise Schaefer, Eric Chater-Diehl, Maria del Mar Muniz Moreno, Bruno Delobel, Katrine M Johannesen, Florence Demurger, Nathalie Drouot, Marie Vincent, Antonio Vitobello, Kristina Pilekær Sørensen, Christina Fagerberg, Cyril Mignot, Estelle Colin, Valérie Layet, Michèle Mathieu-Dramard, Jean-Louis Mandel, Cathrine Elisabeth Tronhjem, Benjamin Durand, Pascale Saugier, Séverine Drunat, Rikke S. Møller, Perrine Charles, Lydie Burglen, Bénédicte Demeer, Salima El Chehadeh, Marc Abramowicz, Laurent Pasquier, and Julie D. Thompson
Subjects: Genetics, Neurodevelopmental disorder, DYRK1A, Intellectual disability, medicine, Missense mutation, Kinase activity, Biology, medicine.disease, Phenotype, Human genetics, Cellular localization
Abstract: ABBSTRACTDYRK1A-related intellectual disability (ID) is among the most frequent monogenic form of ID. We refined the description of this disorder by reporting clinical and molecular data of forty individuals with ID harboringDYRK1Avariants. We developed a combination of tools to interpret missense variants, which remains a major challenge in human genetics: i) a specificDYRK1Aclinical score, ii) amino acid conservation data generated from one hundred of DYRK1A sequences across different taxa, iii)in vitrooverexpression assays to study level, cellular localization, and kinase activity of DYRK1A mutant proteins, and iv) a specific blood DNA methylation signature. This integrative approach was successful to reclassify several variants as pathogenic. However, we questioned the involvement of some others, such as p.Thr588Asn, yet reported as pathogenic, and showed it does not cause obvious phenotype in mice, emphasizing the need to take care when interpreting variants, even those occurringde novo.
Published: 2021
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33. Speech and language deficits are central to SETBP1 haploinsufficiency disorder

Author: Varoona Bizaoui, Siddharth Srivastava, Simon E. Fisher, Angela T Morgan, Bregje W.M. van Bon, Ruth O Braden, Adam P. Vogel, David J. Amor, Estelle Colin, Frédérique Liégeois, Maggie M K Wong, and Kara Ranguin
Subjects: Neuroinformatics, medicine.medical_specialty, media_common.quotation_subject, Haploinsufficiency, Audiology, Sign language, Literacy, Article, Speech Disorders, Dysarthria, Genetics, medicine, Humans, Speech, Genetics (clinical), media_common, Language, Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7], Communication, Nuclear Proteins, Syndrome, medicine.disease, Comprehension, Childhood apraxia of speech, medicine.symptom, Psychology, Carrier Proteins, Spoken language, Gesture
Abstract: Contains fulltext : 237908.pdf (Publisher’s version ) (Closed access) Expressive communication impairment is associated with haploinsufficiency of SETBP1, as reported in small case series. Heterozygous pathogenic loss-of-function (LoF) variants in SETBP1 have also been identified in independent cohorts ascertained for childhood apraxia of speech (CAS), warranting further investigation of the roles of this gene in speech development. Thirty-one participants (12 males, aged 0; 8-23; 2 years, 28 with pathogenic SETBP1 LoF variants, 3 with 18q12.3 deletions) were assessed for speech, language and literacy abilities. Broader development was examined with standardised motor, social and daily life skills assessments. Gross and fine motor deficits (94%) and intellectual impairments (68%) were common. Protracted and aberrant speech development was consistently seen, regardless of motor or intellectual ability. We expand the linguistic phenotype associated with SETBP1 LoF syndrome (SETBP1 haploinsufficiency disorder), revealing a striking speech presentation that implicates both motor (CAS, dysarthria) and language (phonological errors) systems, with CAS (80%) being the most common diagnosis. In contrast to past reports, the understanding of language was rarely better preserved than language expression (29%). Language was typically low, to moderately impaired, with commensurate expression and comprehension ability. Children were sociable with a strong desire to communicate. Minimally verbal children (32%) augmented speech with sign language, gestures or digital devices. Overall, relative to general development, spoken language and literacy were poorer than social, daily living, motor and adaptive behaviour skills. Our findings show that poor communication is a central feature of SETBP1 haploinsufficiency disorder, confirming this gene as a strong candidate for speech and language disorders.
Published: 2021

34. De novo missense variants in LMBRD2 are associated with developmental and motor delays, brain structure abnormalities and dysmorphic features

Author: Benjamin Navet, Renee Perrier, Kiyotaka Tomiwa, Alexander Pepler, Hui Xi, Adele Schneider, Xiao Mao, Ryan J. Taft, Paul Rollier, Alban Ziegler, Roberto Colombo, Noriko Miyake, Emmanuel Scalais, Katrien Stouffs, Estelle Colin, Denise L. Perry, Adeline Vanderver, Nobuhiko Okamoto, Magalie Barth, Li Shu, Elizabeth Wohler, Louise Amlie-Wolf, Hainan Zhang, Alessandro Serretti, Naomichi Matsumoto, Dominique Bonneau, Hua Wang, Omar Sherbini, Alka Malhotra, Nara Sobreira, Alessandra Ferrarini, Malhotra A., Ziegler A., Shu L., Perrier R., Amlie-Wolf L., Wohler E., Lygia De MacEna Sobreira N., Colin E., Vanderver A., Sherbini O., Stouffs K., Scalais E., Serretti A., Barth M., Navet B., Rollier P., Xi H., Wang H., Zhang H., Perry D.L., Ferrarini A., Colombo R., Pepler A., Schneider A., Tomiwa K., Okamoto N., Matsumoto N., Miyake N., Taft R., Mao X., Bonneau D., Service de génétique [Angers], Université d'Angers (UA)-Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), Physiopathologie Cardiovasculaire et Mitochondriale (MITOVASC), Université d'Angers (UA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Hunan Agricultural University [Changsha], Department of Neurology, Children's National Medical Center, Universitair Ziekenhuis Brussel, Centre Hospitalier de Luxembourg [Luxembourg] (CHL), Institute of Psychiatry, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Réseau Maladies Métaboliques, Hôpitaux Universitaires du Grand Ouest, Immunobiology of Human αβ and γδ T Cells and Immunotherapeutic Applications (CRCINA-ÉQUIPE 1), Centre de Recherche en Cancérologie et Immunologie Nantes-Angers (CRCINA), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), Université de Nantes (UN)-Université de Nantes (UN)-Centre hospitalier universitaire de Nantes (CHU Nantes)-Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), Université de Nantes (UN)-Université de Nantes (UN)-Centre hospitalier universitaire de Nantes (CHU Nantes)-Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA), CHU Pontchaillou [Rennes], Shandong University, Nanjing University of Science and Technology (NJUST), Service de génétique médicale, Centre Hospitalier Universitaire Vaudois [Lausanne] (CHUV), Università degli Studi di Brescia [Brescia], Genetics Division, Einstein Medical Center, Gifu University Graduate School of Medicine, Yokohama City University School of Medecine (YCUSM), Yokohama University School of Medecine, Institute for Molecular Bioscience, University of Queensland [Brisbane], Clinical sciences, Medical Genetics, Reproduction and Genetics, and Faculty of Law and Criminology
Subjects: 0301 basic medicine, gain of function mutation, Microcephaly, [SDV]Life Sciences [q-bio], Population, Biology, DNA sequencing, 03 medical and health sciences, 0302 clinical medicine, Neurodevelopmental disorder, Genetics, medicine, Missense mutation, education, Exome, Allele frequency, Genetics (clinical), Exome sequencing, ComputingMilieux_MISCELLANEOUS, education.field_of_study, mutation, missense, medicine.disease, 030104 developmental biology, genetics, medical, 030217 neurology & neurosurgery
Abstract: ObjectiveTo determine the potential disease association between variants in LMBRD2 and complex multisystem neurological and developmental delay phenotypes.MethodsHere we describe a series of de novo missense variants in LMBRD2 in 10 unrelated individuals with overlapping features. Exome sequencing or genome sequencing was performed on all individuals, and the cohort was assembled through GeneMatcher.ResultsLMBRD2 encodes an evolutionary ancient and widely expressed transmembrane protein with no known disease association, although two paralogues are involved in developmental and metabolic disorders. Exome or genome sequencing revealed rare de novo LMBRD2 missense variants in 10 individuals with developmental delay, intellectual disability, thin corpus callosum, microcephaly and seizures. We identified five unique variants and two recurrent variants, c.1448G>A (p.Arg483His) in three cases and c.367T>C (p.Trp123Arg) in two cases. All variants are absent from population allele frequency databases, and most are predicted to be deleterious by multiple in silico damage-prediction algorithms.ConclusionThese findings indicate that rare de novo variants in LMBRD2 can lead to a previously unrecognised early-onset neurodevelopmental disorder. Further investigation of individuals harbouring LMBRD2 variants may lead to a better understanding of the function of this ubiquitously expressed gene.
Published: 2021
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35. Re-focusing on Agnathia-Otocephaly complex

Author: Consolato Sergi, Didier Lacombe, Jelena Martinovic, Tania Attié-Bitach, M.J. Perez, Julie Plaisancié, Christelle Cabrol, C.P. Chen, J. Aziza, Christel Thauvin-Robinet, Nicolas Chassaing, Estelle Colin, M. Aubert-Mucca, Patrick Calvas, C. Dubucs, Stéphanie Arpin, Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) (U1211 INSERM/MRGM), and Université de Bordeaux (UB)-Groupe hospitalier Pellegrin-Institut National de la Santé et de la Recherche Médicale (INSERM)
Subjects: Otocephaly, Agnathia, Biology, Bioinformatics, medicine.disease_cause, 03 medical and health sciences, symbols.namesake, 0302 clinical medicine, Treacher-Collins syndrome, medicine, General Dentistry, Genetic testing, Sanger sequencing, Mutation, Aglossia, medicine.diagnostic_test, Point mutation, 030206 dentistry, medicine.disease, Phenotype, 3. Good health, Agnathia-otocephaly complex, CNBP, 030220 oncology & carcinogenesis, symbols, PRRX1, Craniofacial development, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, OTX2
Abstract: Objectives: Agnathia-otocephaly complex is a rare condition characterized by mandibular hypoplasia or agnathia, ear anomalies (melotia/synotia) and microstomia with aglossia. This severe anomaly of the first branchial arch is most often lethal. The estimated incidence is less than 1 in 70.000 births, with etiologies linked to both genetic and teratogenic factors. Most of the cases are sporadic. To date, two genes have been described in humans to be involved in this condition: OTX2 and PRRX1. Nevertheless, the overall proportion of mutated cases is unknown and a significant number of patients remain without molecular diagnosis. Thus, the involvement of other genes than OTX2 and PRRX1 in the agnathia-otocephaly complex is not unlikely. Heterozygous mutations in Cnbp in mice are responsible for mandibular and eye defects mimicking the agnathia-otocephaly complex in humans and appear as a good candidate. Therefore, in this study, we aimed (i) to collect patients presenting with agnathia-otocephaly complex for screening CNBP, in parallel with OTX2 and PRRX1, to check its possible implication in the human phenotype and (ii) to compare our results with the literature data to estimate the proportion of mutated cases after genetic testing. Materials and methods: In this work, we describe 10 patients suffering from the agnathia-otocephaly complex. All of them benefited from array-CGH and Sanger sequencing of OTX2, PRRX1 and CNBP. A complete review of the literature was made using the Pubmed database to collect all the patients described with a phenotype of agnathia-otocephaly complex during the 20 last years (1998-2019) in order (i) to study etiology (genetic causes, iatrogenic causes...) and (ii), when genetic testing was performed, to study which genes were tested and by which type of technologies. Results: In our 10 patients’ cohort, no point mutation in the three tested genes was detected by Sanger sequencing, while array-CGH has allowed identifying a 107-kb deletion encompassing OTX2 responsible for the agnathia-otocephaly complex phenotype in 1 of them. In 4 of the 70 cases described in the literature, a toxic cause was identified and 22 out the 66 remaining cases benefited from genetic testing. Among those 22 patients, 6 were carrying mutation or deletion in the OTX2 gene and 4 in the PRRX1 gene. Thus, when compiling results from our cohort and the literature, a total of 32 patients benefited from genetic testing, with only 34% (11/32) of patients having a mutation in one of the two known genes, OTX2 or PRRX1. Conclusions: From our work and the literature review, only mutations in OTX2 and PRRX1 have been found to date in patients, explaining around one third of the etiologies after genetic testing. Thus, agnathia-otocephaly complex remains unexplained in the majority of the patients, which indicates that other factors might be involved. Although involved in first branchial arch defects, no mutation in the CNBP gene was found in this study. This suggests that mutations in CNBP might not be involved in such phenotype in humans or that, unlike in mice, a compensatory effect might exist in humans. Nevertheless, given that agnathia-otocephaly complex is a rare phenotype, more patients have to be screened for CNBP mutations before we definitively conclude about its potential implication. Therefore, this work presents the current state of knowledge on agnathia-otocephaly complex and underlines the need to expand further the understanding of the genetic bases of this disorder, which remains largely unknown. Clinical relevance: We made here an update and focus on the clinical and genetic aspects of agnathia-otocephaly complex as well as a more general review of craniofacial development.
Published: 2021
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36. Myoclonic dystonia phenotype related to a novel calmodulin-binding transcription activator 1 sequence variant

Author: Ivana Dzinovic, Michael Zech, Juliane Winkelmann, Tereza Serranová, Estelle Colin, Clement Prouteau, Robert Jech, and Alban Ziegler
Subjects: 0301 basic medicine, Adult, Male, Vision Disorders, Biology, 03 medical and health sciences, Cellular and Molecular Neuroscience, Calmodulin-Binding Transcription Activator 1, 0302 clinical medicine, Intellectual Disability, Exome Sequencing, Genetics, medicine, Humans, Frameshift Mutation, Hearing Loss, Gene, Genetics (clinical), Genetic Association Studies, Sequence (medicine), Sequence Deletion, Dystonia, CAMTA1 Gene, Calcium-Binding Proteins, Myoclonic dystonia, medicine.disease, Phenotype, Pedigree, 030104 developmental biology, Codon, Nonsense, Dystonic Disorders, Child, Preschool, Trans-Activators, Female, medicine.symptom, Myoclonus, 030217 neurology & neurosurgery
Abstract: Intragenic rearrangements and sequence variants in the calmodulin-binding transcription activator 1 gene (CAMTA1) can result in a spectrum of clinical presentations, most notably congenital ataxia with or without intellectual disability. We describe for the first time a myoclonic dystonia-predominant phenotype associated with a novel CAMTA1 sequence variant. Furthermore, by identifying an additional, recurrent CAMTA1 sequence variant in an individual with a more typical neurodevelopmental disease manifestation, we contribute to the elucidation of phenotypic variability associated with CAMTA1 gene mutations.
Published: 2020

37. Author response for 'Congenital hypothyroidism and hearing loss without inner ear malformation: Think <scp> TPO </scp>'

Author: Stéphanie Rouleau, Xavier Dieu, Nathalie Bouzamondo, Dominique Bonneau, Régis Coutant, Sophie Boucher, Natacha Bouhours, Patrice Rodien, Estelle Colin, Alban Ziegler, Anne-Sophie Denommé-Pichon, Delphine Prunier, and Tanguy Jean Yves
Subjects: medicine.medical_specialty, Hearing loss, Inner ear malformation, business.industry, medicine, medicine.symptom, Audiology, medicine.disease, business, Congenital hypothyroidism
Published: 2020
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38. Next-generation sequencing in a series of 80 fetuses with complex cardiac malformations and/or heterotaxy

Author: Julien Thevenon, Sophie Blesson, Sylvie Manouvrier Hanu, Chloé Quélin, Florence Fellmann, Nicolas Chassaing, Fabienne Giuliano, Laetitia Lambert, Caroline Rooryck-Thambo, Pierre-Simon Jouk, Sylvie Di Filippo, Alexandre Vasiljevic, Christine Francannet, Daphné Lehalle, Audrey Putoux, Anna‐Gaëlle Giguet‐Valard, Sophie Naudion, Salima El Chehadeh, Estelle Colin, Viorica Ciorna‐Monferrato, Bruno Reversade, Lionel Van Maldergem, Fanny Morice-Picard, Renaud Touraine, Sébastien Moutton, Jocelyne Attia, Laurent Pasquier, A. Vigouroux-Castera, Catherine Yardin, Tania Attié-Bitach, Carine Abel, Hui Liu, Sylvie Odent, Christelle Cabrol, Florence Petit, Philippe Khau Van Kien, Thomas Simonet, Catherine Vincent-Delorme, Jean Chiesa, Juliette Piard, Anne Bazin, Mélanie Fradin, Bertrand Isidor, Loubna El Zein, Patrice Bouvagnet, Marie-Pierre Brechard, Emmanuelle Szenker-Ravi, Sophie Scheidecker, Claire Beneteau, and ACS - Heart failure & arrhythmias
Subjects: Heart Defects, Congenital, Male, midline anomaly, Heterozygote, medicine.medical_specialty, Genetic counseling, Consanguinity, Heterotaxy Syndrome, Biology, DNA sequencing, 03 medical and health sciences, consanguinity, Genetics, medicine, Humans, Family, Family history, Genetics (clinical), 030304 developmental biology, 0303 health sciences, Fetus, Obstetrics, Homozygote, 030305 genetics & heredity, High-Throughput Nucleotide Sequencing, heterotaxy, congenital heart defects, Cardiac malformations, Pedigree, fetus, Parental consanguinity, Cytogenetic Analysis, Mutation, Female, next-generation sequencing, Heterotaxy
Abstract: Herein, we report the screening of a large panel of genes in a series of 80 fetuses with congenital heart defects (CHDs) and/or heterotaxy and no cytogenetic anomalies. There were 49 males (61%/39%), with a family history in 28 cases (35%) and no parental consanguinity in 77 cases (96%). All fetuses had complex CHD except one who had heterotaxy and midline anomalies while 52 cases (65%) had heterotaxy in addition to CHD. Altogether, 29 cases (36%) had extracardiac and extra-heterotaxy anomalies. A pathogenic variant was found in 10/80 (12.5%) cases with a higher percentage in the heterotaxy group (8/52 cases, 15%) compared with the non-heterotaxy group (2/28 cases, 7%), and in 3 cases with extracardiac and extra-heterotaxy anomalies (3/29, 10%). The inheritance was recessive in six genes (DNAI1, GDF1, MMP21, MYH6, NEK8, and ZIC3) and dominant in two genes (SHH and TAB2). A homozygous pathogenic variant was found in three cases including only one case with known consanguinity. In conclusion, after removing fetuses with cytogenetic anomalies, next-generation sequencing discovered a causal variant in 12.5% of fetal cases with CHD and/or heterotaxy. Genetic counseling for future pregnancies was greatly improved. Surprisingly, unexpected consanguinity accounts for 20% of cases with identified pathogenic variants.
Published: 2020

39. Publisher Correction: Discovery of a genetic module essential for assigning left–right asymmetry in humans and ancestral vertebrates

Author: Emmanuelle Szenker-Ravi, Tim Ott, Muznah Khatoo, Anne Moreau de Bellaing, Wei Xuan Goh, Yan Ling Chong, Anja Beckers, Darshini Kannesan, Guillaume Louvel, Priyanka Anujan, Vydianathan Ravi, Carine Bonnard, Sébastien Moutton, Patric Schoen, Mélanie Fradin, Estelle Colin, André Megarbane, Linda Daou, Ghassan Chehab, Sylvie Di Filippo, Caroline Rooryck, Jean-François Deleuze, Anne Boland, Nicolas Arribard, Rukiye Eker, Sumanty Tohari, Alvin Yu-Jin Ng, Marlène Rio, Chun Teck Lim, Birgit Eisenhaber, Frank Eisenhaber, Byrappa Venkatesh, Jeanne Amiel, Hugues Roest Crollius, Christopher T. Gordon, Achim Gossler, Sudipto Roy, Tania Attie-Bitach, Martin Blum, Patrice Bouvagnet, and Bruno Reversade
Subjects: Genetics
Published: 2022
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40. Serum bikunin isoforms in congenital disorders of glycosylation and linkeropathies

Author: Arnaud Bruneel, Walid Haouari, Johanne Dubail, Nathalie Seta, Pierre Prada, Charles Roseau, Valérie Cormier-Daire, Estelle Colin, Céline Huber, François Foulquier, Samra Lounis-Ouaras, Sandrine Vuillaumier-Barrot, Christian Poüs, Rizk Bennani, Alexandra Afenjar, Physiopathologie et traitement des maladies du foie, Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Paris-Sud - Paris 11 (UP11)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM), AP-HP - Hôpital Bichat - Claude Bernard [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), ANR-15-RAR3-0004,EURO-CDG-2,A European research network directed towards improving diagnosis and treatment of inborn glycosylation disorders.(2015), European Project: 643578,H2020,H2020-HCO-2014,E-Rare-3(2014), Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 (UGSF), and Université de Lille-Centre National de la Recherche Scientifique (CNRS)
Subjects: Gene isoform, congenital, hereditary, and neonatal diseases and abnormalities, Glycosylation, [SDV]Life Sciences [q-bio], linkeropathies, Golgi Apparatus, Context (language use), Antiporters, Glycosaminoglycan, 03 medical and health sciences, symbols.namesake, chemistry.chemical_compound, Congenital Disorders of Glycosylation, Alpha-Globulins, Genetics, Humans, Protein Isoforms, inter‐α‐trypsin inhibitor, Chondroitin sulfate, Cation Transport Proteins, Genetics (clinical), 030304 developmental biology, chemistry.chemical_classification, 0303 health sciences, bikunin, 030305 genetics & heredity, Golgi apparatus, 3. Good health, Enzyme, Biochemistry, chemistry, TMEM165, GAG tetrasaccharide, Nucleotide Transport Proteins, symbols, CDG, SLC35A3, Glycoprotein, Biomarkers
Abstract: Bikunin (Bkn) isoforms are serum chondroitin sulfate (CS) proteoglycans synthesized by the liver. They include two light forms, that is, the Bkn core protein and the Bkn linked to the CS chain (urinary trypsin inhibitor [UTI]), and two heavy forms, that is, pro‐α‐trypsin inhibitor and inter‐α‐trypsin inhibitor, corresponding to UTI esterified by one or two heavy chains glycoproteins, respectively. We previously showed that the Western‐blot analysis of the light forms could allow the fast and easy detection of patients with linkeropathy, deficient in enzymes involved in the synthesis of the initial common tetrasaccharide linker of glycosaminoglycans. Here, we analyzed all serum Bkn isoforms in a context of congenital disorders of glycosylation (CDG) and showed very specific abnormal patterns suggesting potential interests for their screening and diagnosis. In particular, genetic deficiencies in V‐ATPase (ATP6V0A2‐CDG, CCDC115‐CDG, ATP6AP1‐CDG), in Golgi manganese homeostasis (TMEM165‐CDG) and in the N‐acetyl‐glucosamine Golgi transport (SLC35A3‐CDG) all share specific abnormal Bkn patterns. Furthermore, for each studied linkeropathy, we show that the light abnormal Bkn could be further in‐depth characterized by two‐dimensional electrophoresis. Moreover, besides being interesting as a specific biomarker of both CDG and linkeropathies, Bkn isoforms' analyses can provide new insights into the pathophysiology of the aforementioned diseases.
Published: 2020
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41. Clinical and molecular description of 19 patients with GATAD2B-Associated Neurodevelopmental Disorder (GAND)

Author: Gaël Nicolas, Yline Capri, Alban Ziegler, Christiane Zweier, Bénédicte Duban-Bedu, Roberta Polli, Neda Mazaheri, Alessandra Murgia, Cindy Colson, Pascale Saugier-Veber, Reza Maroofian, Laurence Perrin, François Lecoquierre, Stephan Waldmüller, Benjamin Cogné, Angelika Rieß, A.S. Lebre, M. Brasseur-Daudruy, Bert Callewaert, Antje Wiesener, Anne-Marie Guerrot, Thierry Frebourg, Thomas Smol, Benjamin Durand, Rebecca Buchert-Lo, Veronka Horber, Tobias B. Haack, Patrick Edery, Gabriella Vera, Gaetan Lesca, Geoffroy Delplancq, Sandra Mercier, Christopher Carroll, Maria Blandfort, Khaoula Zaafrane-Khachnaoui, Hamid Galehdari, Emanuela Leonardi, Arthur Sorlin, Fabienne Giulianno, Isabelle Sabatier, Florence Petit, Licia Turolla, Nicolas Chatron, Amélie Piton, Janine Magg, Estelle Colin, Stéphane Bézieau, Dominique Bonneau, Génomique et Médecine Personnalisée du Cancer et des Maladies Neuropsychiatriques (GPMCND), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service d'imagerie médicale [CHU Rouen], Hôpital Charles Nicolle [Rouen]-CHU Rouen, Normandie Université (NU)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU), Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Biologie Neurovasculaire et Mitochondriale Intégrée (BNMI), Université d'Angers (UA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Service de génétique [Angers], Université d'Angers (UA)-Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), Physiopathologie Cardiovasculaire et Mitochondriale (MITOVASC), Service de Génétique Médicale, Centre hospitalier universitaire de Nantes (CHU Nantes), Laboratoire de Génétique Moléculaire, Service de cytogénétique constitutionnelle, Hospices Civils de Lyon (HCL)-CHU de Lyon-Centre Neuroscience et Recherche, Centre de recherche en neurosciences de Lyon (CRNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL), Centre de Génétique Chromosomique, Hôpital Saint Vincent de Paul-GHICL, Service de Génétique Clinique [CHU Caen], Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN), Laboratoire de Génétique Moléculaire [CHRU Strasbourg], CHRU Strasbourg, Université de Montpellier (UM), Département de génétique [Robert Debré], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-AP-HP Hôpital universitaire Robert-Debré [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Hôpital Robert Debré Paris, Hôpital Robert Debré, Institute of Human Genetics [Erlangen, Allemagne], Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Molecular and Clinical Sciences Institute - St George’s [London, UK] (Genetics Research Centre), University of London [London], Center for Medical Genetics [Ghent], Ghent University Hospital, Institute of Human Genetics, Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM)-Helmholtz-Zentrum München (HZM)-German Research Center for Environmental Health, Human Genetics, and Fondation Jean Dausset - Centre d’Étude du Polymorphisme Humain
Subjects: Male, Pediatrics, Developmental delay, [SDV]Life Sciences [q-bio], GATA Transcription Factors, GATAD2B, Developmental delay, Intellectual disability, Next-generation sequencing, GATAD2B, Epilepsy, 0302 clinical medicine, Neurodevelopmental disorder, Pregnancy, Intellectual disability, Hypertelorism, Child, Genetics (clinical), ComputingMilieux_MISCELLANEOUS, Sequence Deletion, 0303 health sciences, Brain, High-Throughput Nucleotide Sequencing, General Medicine, Magnetic Resonance Imaging, Hypotonia, 3. Good health, Phenotype, Child, Preschool, Muscle Hypotonia, Female, medicine.symptom, Adult, medicine.medical_specialty, Adolescent, Speech Disorders, 03 medical and health sciences, Disease severity, Intellectual Disability, Genetics, medicine, Humans, 030304 developmental biology, business.industry, Macrocephaly, Infant, medicine.disease, Megalencephaly, Repressor Proteins, Neurodevelopmental Disorders, Face, Next-generation sequencing, business, 030217 neurology & neurosurgery
Abstract: De novo pathogenic variants in the GATAD2B gene have been associated with a syndromic neurodevelopmental disorder (GAND) characterized by severe intellectual disability (ID), impaired speech, childhood hypotonia, and dysmorphic features. Since its first description in 2013, nine patients have been reported in case reports and a series of 50 patients was recently published, which is consistent with the relative frequency of GATAD2B pathogenic variants in public databases. We report the detailed phenotype of 19 patients from various ethnic backgrounds with confirmed pathogenic GATAD2B variants including intragenic deletions. All individuals presented developmental delay with a median age of 2.5 years for independent walking and of 3 years for first spoken words. GATAD2B variant carriers showed very little subsequent speech progress, two patients over 30 years of age remaining non-verbal. ID was mostly moderate to severe, with one profound and one mild case, which shows a wider spectrum of disease severity than previously reported. We confirm macrocephaly as a major feature in GAND (53%). Most common dysmorphic features included broad forehead, deeply set eyes, hypertelorism, wide nasal base, and pointed chin. Conversely, prenatal abnormalities, non-cerebral malformations, epilepsy, and autistic behavior were uncommon. Other features included feeding difficulties, behavioral abnormalities, and unspecific abnormalities on brain MRI. Improving our knowledge of the clinical phenotype is essential for correct interpretation of the molecular results and accurate patient management.
Published: 2020
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42. De novo missense variants in

Author: Alka, Malhotra, Alban, Ziegler, Li, Shu, Renee, Perrier, Louise, Amlie-Wolf, Elizabeth, Wohler, Nara, Lygia de Macena Sobreira, Estelle, Colin, Adeline, Vanderver, Omar, Sherbini, Katrien, Stouffs, Emmanuel, Scalais, Alessandro, Serretti, Magalie, Barth, Benjamin, Navet, Paul, Rollier, Hui, Xi, Hua, Wang, Hainan, Zhang, Denise L, Perry, Alessandra, Ferrarini, Roberto, Colombo, Alexander, Pepler, Adele, Schneider, Kiyotaka, Tomiwa, Nobuhiko, Okamoto, Naomichi, Matsumoto, Noriko, Miyake, Ryan, Taft, Xiao, Mao, and Dominique, Bonneau
Subjects: Cohort Studies, Motor Skills Disorders, Nucleocytoplasmic Transport Proteins, Phenotype, Amino Acid Substitution, Genotype, Developmental Disabilities, Mutation, Missense, Humans, Genetic Predisposition to Disease, Nervous System Malformations, Alleles
Abstract: To determine the potential disease association between variants inHere we describe a series of de novo missense variants inThese findings indicate that rare de novo variants in
Published: 2020

43. The CHD4-related syndrome: a comprehensive investigation of the clinical spectrum, genotype-phenotype correlations, and molecular basis

Author: Marie Falkenberg Smeland, Alina Kurolap, Michael J. Gambello, Ariel F. Martinez, Livija Medne, Melita Irving, Elizabeth Roeder, Holly Dubbs, Robert M. Petrovich, Elaine H. Zackai, Motoki Takaku, Kimberly Nugent, Bruce D. Gelb, Peter D. Turnpenny, Michael Parker, Maximilian Muenke, Thomas Smol, Arie van Haeringen, Hanne Hove, Hitoshi Kurumizaka, Sandra Whalen, Boris Keren, Philippe M. Campeau, Samantha A. Schrier Vergano, Lior Cohen, Pauline Terhal, Amy Kenney, Paul A. Wade, Jill Clayton-Smith, Jamal Ghoumid, Shane C. Quinonez, John Roberts, Katherine Lachlan, Mahim Jain, Estelle Colin, Melissa Rumple, Solveig Heide, Kay Metcalfe, Alban Ziegler, Hayley P. Lazar, Elizabeth T. DeChene, Cara M. Skraban, Michael Wright, Karin Weiss, Danielle Monteil, Tamar Paperna, Avni Santani, Hagit Baris Feldman, Bryan L. Krock, Service de Génétique Cytogénétique et Embryologie [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Department of Clinical Genetics, Leicester Royal Infirmary, University Hospitals Leicester-University Hospitals Leicester, Physiopathologie Cardiovasculaire et Mitochondriale (MITOVASC), Université d'Angers (UA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Kennedy Krieger Institute [Baltimore], Department of Pediatrics, The University of Texas at San Antonio (UTSA), Universiteit Leiden [Leiden], Department of Pathology and Laboratory Medicine [Philadelphia, PA, USA], University of Pennsylvania [Philadelphia]-Perelman School of Medicine, University of Pennsylvania [Philadelphia], Children’s Hospital of Philadelphia (CHOP ), Division of Human Genetics, Department of Pediatrics, The Children's Hospital of Philadelphia, Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Service de génétique clinique, Hôpital Jeanne de Flandre [Lille]-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Ethox Centre, Department of Public Health and Primary Health Care, University of Oxford, Badenoch Building, Old Road Campus, Headington, University of Manchester [Manchester], Central Manchester University Hospitals NHS Foundation Trust, Waseda University, CHU Sainte Justine [Montréal], Cancer Genetics Branch, National Institute of Health (NIH)-National Human Genome Research Institute (NHGRI), and Southampton General Hospital
Subjects: 0301 basic medicine, Male, [SDV]Life Sciences [q-bio], Developmental Disabilities, 030105 genetics & heredity, chromatin remodeling, 12p13, Neurodevelopmental disorder, Intellectual disability, Missense mutation, Global developmental delay, Child, Genetics (clinical), Genetics, Syndrome, Phenotype, 3. Good health, intellectual disability, Child, Preschool, Female, medicine.symptom, Mi-2 Nucleosome Remodeling and Deacetylase Complex, Adult, Heart Defects, Congenital, missense, Adolescent, Genotype, Mutation, Missense, Biology, Chromatin remodeling, Article, 12p13.31, 03 medical and health sciences, medicine, Humans, ATPase, Abnormalities, Multiple, Hearing Loss, Genetic Association Studies, Macrocephaly, Infant, Newborn, Infant, medicine.disease, Chromatin Assembly and Disassembly, Human genetics, Megalencephaly, Musculoskeletal Abnormalities, 030104 developmental biology, Neurodevelopmental Disorders, Transcription Factors
Abstract: Sifrim–Hitz–Weiss syndrome (SIHIWES) is a recently described multisystemic neurodevelopmental disorder caused by de novo variants in CHD4. In this study, we investigated the clinical spectrum of the disorder, genotype–phenotype correlations, and the effect of different missense variants on CHD4 function. We collected clinical and molecular data from 32 individuals with mostly de novo variants in CHD4, identified through next-generation sequencing. We performed adenosine triphosphate (ATP) hydrolysis and nucleosome remodeling assays on variants from five different CHD4 domains. The majority of participants had global developmental delay, mild to moderate intellectual disability, brain anomalies, congenital heart defects, and dysmorphic features. Macrocephaly was a frequent but not universal finding. Additional common abnormalities included hypogonadism in males, skeletal and limb anomalies, hearing impairment, and ophthalmic abnormalities. The majority of variants were nontruncating and affected the SNF2-like region of the protein. We did not identify genotype–phenotype correlations based on the type or location of variants. Alterations in ATP hydrolysis and chromatin remodeling activities were observed in variants from different domains. The CHD4-related syndrome is a multisystemic neurodevelopmental disorder. Missense substitutions in different protein domains alter CHD4 function in a variant-specific manner, but result in a similar phenotype in humans.
Published: 2020
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44. Correction to: Myoclonic dystonia phenotype related to a novel calmodulin-binding transcription activator 1 sequence variant

Author: Ivana Dzinovic, Clement Prouteau, Alban Ziegler, Estelle Colin, Robert Jech, Michael Zech, Tereza Serranová, and Juliane Winkelmann
Subjects: Genetics, Cellular and Molecular Neuroscience, Calmodulin-Binding Transcription Activator 1, medicine, Myoclonic dystonia, Biology, medicine.disease, Phenotype, Genetics (clinical), Sequence (medicine)
Published: 2021
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45. De Novo Missense Mutations in DHX30 Impair Global Translation and Cause a Neurodevelopmental Disorder

Author: Naomi Meeks, Stefan Kindler, Anya Revah-Politi, Alexander P.A. Stegmann, Vinodh Narayanan, Dominique Bonneau, Claudia Schob, Jill A. Rosenfeld, Jennifer E. Posey, Tim M. Strom, LaDonna Immken, Tjitske Kleefstra, Jolanda H. Schieving, Katherine L. Helbig, Estelle Colin, Magalie Barth, Tamar Harel, Matthew J. Huentelman, James R. Lupski, Benjamin Cogné, Han G. Brunner, Yaping Yang, Sébastien Küry, Jenny Morton, Erica H. Gerkes, Keri Ramsey, Marine Tessarech, Zeynep Coban-Akdemir, Shimon Edvardson, Hans-Jürgen Kreienkamp, Nelly Oundjian, Davor Lessel, Christian Kubisch, Thomas Besnard, Jonas Denecke, Orly Elpeleg, Ana M. Claasen, Kelsey Zegar, Mohammad K. Eldomery, Sandra Mercier, Margot R.F. Reijnders, Stéphane Bézieau, Univ Angers, Okina, MUMC+: DA KG Lab Centraal Lab (9), Klinische Genetica, RS: GROW - R4 - Reproductive and Perinatal Medicine, MUMC+: DA Klinische Genetica (5), Physiopathologie Cardiovasculaire et Mitochondriale (MITOVASC), and Université d'Angers (UA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 0301 basic medicine, Central Nervous System, Male, DISRUPTION, INTELLECTUAL DISABILITY, Developmental Disabilities, PROTEIN, DISEASE, 0302 clinical medicine, Neurodevelopmental disorder, Intellectual disability, Missense mutation, Global developmental delay, Amino Acids, Child, Genetics (clinical), Genetics, Adenosine Triphosphatases, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, Translation (biology), Disorders of movement Donders Center for Medical Neuroscience [Radboudumc 3], 3. Good health, FAMILY, Child, Preschool, Female, RNA Helicases, MODULE, Adolescent, Mutation, Missense, RNA GRANULES, Biology, Article, Cell Line, 03 medical and health sciences, Stress granule, Cell Line, Tumor, medicine, Humans, HELICASE, Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7], STRESS GRANULES, Helicase, RNA, Correction, medicine.disease, GENE, 030104 developmental biology, HEK293 Cells, biology.protein, 030217 neurology & neurosurgery, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: Contains fulltext : 182457.pdf (Publisher’s version ) (Open Access) DHX30 is a member of the family of DExH-box helicases, which use ATP hydrolysis to unwind RNA secondary structures. Here we identified six different de novo missense mutations in DHX30 in twelve unrelated individuals affected by global developmental delay (GDD), intellectual disability (ID), severe speech impairment and gait abnormalities. While four mutations are recurrent, two are unique with one affecting the codon of one recurrent mutation. All amino acid changes are located within highly conserved helicase motifs and were found to either impair ATPase activity or RNA recognition in different in vitro assays. Moreover, protein variants exhibit an increased propensity to trigger stress granule (SG) formation resulting in global translation inhibition. Thus, our findings highlight the prominent role of translation control in development and function of the central nervous system and also provide molecular insight into how DHX30 dysfunction might cause a neurodevelopmental disorder.
Published: 2017
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46. Gain-of-Function Mutation in Filamin A Potentiates Platelet Integrin α IIb β 3 Activation

Author: Jean-Philippe Rosa, Cyril Goizet, Paquita Nurden, Jean-Claude Bordet, Eliane Berrou, Patricia Fergelot, Marilyne Lebret, Odile Issertial, Isabelle Coupry, Marijke Bryckaert, Virginie Planche, Estelle Colin, Dominique Bonneau, and Frédéric Adam
Subjects: 0301 basic medicine, Mutation, biology, Integrin, medicine.disease_cause, Filamin, Platelet Glycoprotein GPIIb-IIIa Complex, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Integrin alpha2, biology.protein, medicine, Cancer research, FLNA, Platelet activation, Signal transduction, Cardiology and Cardiovascular Medicine, 030217 neurology & neurosurgery
Abstract: Objective— Dominant mutations of the X-linked filamin A ( FLNA ) gene are responsible for filaminopathies A, which are rare disorders including brain periventricular nodular heterotopia, congenital intestinal pseudo-obstruction, cardiac valves or skeleton malformations, and often macrothrombocytopenia. Approach and Results— We studied a male patient with periventricular nodular heterotopia and congenital intestinal pseudo-obstruction, his unique X-linked FLNA allele carrying a stop codon mutation resulting in a 100–amino acid–long FLNa C-terminal extension (NP_001447.2: p.Ter2648SerextTer101 ). Platelet counts were normal, with few enlarged platelets. FLNa was detectable in all platelets but at 30% of control levels. Surprisingly, all platelet functions were significantly upregulated, including platelet aggregation and secretion, as induced by ADP, collagen, or von Willebrand factor in the presence of ristocetin, as well as thrombus formation in blood flow on a collagen or on a von Willebrand factor matrix. Most importantly, patient platelets stimulated with ADP exhibited a marked increase in α IIb β 3 integrin activation and a parallel increase in talin recruitment to β 3 , contrasting with normal Rap1 activation. These results are consistent with the mutant FLNa affecting the last step of α IIb β 3 activation. Overexpression of mutant FLNa in the HEL megakaryocytic cell line correlated with an increase (compared with wild-type FLNa) in PMA-induced fibrinogen binding to and in talin and kindlin-3 recruitment by α IIb β 3 . Conclusions— Altogether, our results are consistent with a less binding of mutant FLNa to β 3 and the facilitated recruitment of talin by β 3 on platelet stimulation, explaining the increased α IIb β 3 activation and the ensuing gain-of-platelet functions.
Published: 2017
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47. A novel mutation in the transmembrane 6 domain of GABBR2 leads to a Rett-like phenotype

Author: Céline Brulard, Philippe Parent, Stéphane Bézieau, Anne-Sophie Denommé-Pichon, Médéric Jeanne, Annick Toutain, Frédéric Laumonnier, Estelle Colin, Bertrand Isidor, Brigitte Gilbert-Dussardier, Audrey Donnart, Sylvie Odent, Sophie Blesson, Li Xue, Richard Redon, Servane Alirol, Philippe Rondard, and Marie-Laure Vuillaume
Subjects: 0301 basic medicine, Genetics, Biology, medicine.disease, Phenotype, In vitro, Transmembrane protein, 03 medical and health sciences, Epileptic spasms, 030104 developmental biology, 0302 clinical medicine, Neurology, In vivo, medicine, Neurology (clinical), GABBR2, Functional studies, Novel mutation, 030217 neurology & neurosurgery
Abstract: We read with great interest the recent article published by Yooet al1reporting 4 additional Rett-like (RTT) patients with therecurring A567TGABBR2mutation.2More interestingly, theyshowed, with in vitro and in vivo functional studies, that theseverity of the phenotype caused byGABBR2mutations wasdirectly linked to their impact onc-aminobutyric acid (GABA)signaling activity, this latter being more reduced with the 2 mis-sense mutations, S695I and I705N, associated with epilepticencephalopathy (EE).1,3They hypothesized that the position ofvariants in different transmembrane (TM) domains ofGABBR2,TM6 for S695I and I705N, and TM3 for A567T, could deter-mine the phenotypic expression. This hypothesis was recentlyreinforced with the report of a novelGABBR2mutation also inTM6 and associated with infantile epileptic spasms.
Published: 2018
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48. Author response for 'Confirmation that variants in TTI2 are responsible for autosomal recessive intellectual disability'

Author: Clara Houdayer, Patricia I. Bader, Estelle Colin, Alban Ziegler, Dominique Bonneau, Kirsty McWalter, Régis Coutant, Stéphanie Rouleau, Céline Bris, and Ganka Douglas
Subjects: Genetics, business.industry, Intellectual disability, medicine, medicine.disease, business
Published: 2019
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49. eKLIPse: a sensitive tool for the detection and quantification of mitochondrial DNA deletions from next-generation sequencing data

Author: Pascal Reynier, Dominique Bonneau, Vincent Procaccio, Céline Bris, Estelle Colin, Virginie Hoffmann, Véronique Paquis-Flucklinger, Patrizia Amati-Bonneau, Claude Jardel, Benoit Rucheton, Guy Lenaers, Valérie Desquiret-Dumas, David Goudenège, Sylvie Bannwarth, Anne-Sophie Lebre, Physiopathologie Cardiovasculaire et Mitochondriale (MITOVASC), Université d'Angers (UA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Biologie Neurovasculaire et Mitochondriale Intégrée (BNMI), Institut Cochin (IC UM3 (UMR 8104 / U1016)), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Université de Bordeaux (UB), Service de génétique médicale, Centre Hospitalier Universitaire de Nice (CHU Nice)-Hôpital l'Archet, Institut de Recherche sur le Cancer et le Vieillissement (IRCAN), Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA), Service de génétique [Angers], Université d'Angers (UA)-Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), Mitochondrie : Régulations et Pathologie, Université d'Angers (UA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Physiopathologie et thérapie des déficits sensoriels et moteurs, Université Montpellier 2 - Sciences et Techniques (UM2)-IFR76-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA), Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Nice Sophia Antipolis (... - 2019) (UNS), and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)
Subjects: 0301 basic medicine, Mitochondrial DNA, Mitochondrial Diseases, Nuclear gene, Mitochondrial disease, [SDV]Life Sciences [q-bio], Computational biology, 030105 genetics & heredity, Biology, DNA, Mitochondrial, DNA sequencing, 03 medical and health sciences, Genotype, medicine, Humans, Gene, Genetic Association Studies, Genetics (clinical), ComputingMilieux_MISCELLANEOUS, Sequence Deletion, Base Sequence, Breakpoint, High-Throughput Nucleotide Sequencing, Sequence Analysis, DNA, medicine.disease, Phenotype, Mitochondria, 030104 developmental biology, Software
Abstract: Accurate detection of mitochondrial DNA (mtDNA) alterations is essential for the diagnosis of mitochondrial diseases. The development of high-throughput sequencing technologies has enhanced the detection sensitivity of mtDNA pathogenic variants, but the detection of mtDNA rearrangements, especially multiple deletions, is still poorly processed. Here, we present eKLIPse, a sensitive and specific tool allowing the detection and quantification of large mtDNA rearrangements from single and paired-end sequencing data. The methodology was first validated using a set of simulated data to assess the detection sensitivity and specificity, and second with a series of sequencing data from mitochondrial disease patients carrying either single or multiple deletions, related to pathogenic variants in nuclear genes involved in mtDNA maintenance. eKLIPse provides the precise breakpoint positions and the cumulated percentage of mtDNA rearrangements at a given gene location with a detection sensitivity lower than 0.5% mutant. eKLIPse software is available either as a script to be integrated in a bioinformatics pipeline, or as user-friendly graphical interface to visualize the results through a Circos representation ( https://github.com/dooguypapua/eKLIPse ). Thus, eKLIPse represents a useful resource to study the causes and consequences of mtDNA rearrangements, for further genotype/phenotype correlations in mitochondrial disorders.
Published: 2019
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50. Second report of RING finger protein 113A (RNF113A) involvement in a Mendelian disorder

Author: Dominique Bonneau, Jean-Philippe Bault, Vincent Procaccio, Marine Tessarech, Stéphane Triau, Houria Salhi, Annie Laquerrière, Alban Ziegler, Agnès Guichet, Françoise Boussion, Céline Bris, B. Delorme, Pascal Reynier, Magali Gorce, Catherine Fallet-Bianco, Estelle Colin, Salim Khiaty, Majida Charif, Delphine Héron, Aurélia Jacquette, Service de gynécologie-obstétrique, Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), Service de foetopathologie, PRES Université Nantes Angers Le Mans (UNAM), Service de génétique [Angers], Université d'Angers (UA)-Centre Hospitalier Universitaire d'Angers (CHU Angers), Biologie Neurovasculaire et Mitochondriale Intégrée (BNMI), Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université d'Angers (UA), Physiopathologie Cardiovasculaire et Mitochondriale (MITOVASC), and Université d'Angers (UA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Male, Microcephaly, [SDV]Life Sciences [q-bio], Trichothiodystrophy, Biology, 03 medical and health sciences, 0302 clinical medicine, Genes, X-Linked, Intellectual Disability, Exome Sequencing, Genetics, medicine, Humans, Trichothiodystrophy Syndromes, Exome, Gene, Genetics (clinical), Exome sequencing, ComputingMilieux_MISCELLANEOUS, 030304 developmental biology, Zinc finger, 0303 health sciences, Corpus Callosum Agenesis, Genetic Diseases, X-Linked, medicine.disease, Pedigree, RNF113A, DNA-Binding Proteins, RNA splicing, Female, Agenesis of Corpus Callosum, 030217 neurology & neurosurgery
Abstract: RING Finger Protein 113 A (RNF113A, MIM 300951) is a highly conserved gene located on chromosome Xq24-q25, encoding a protein containing two conserved zinc finger domains involved in DNA alkylation repair and premessenger RNA splicing. To date, only one pathogenic variant of RNF113A, namely c.901C>T; p.Gln301Ter, has been reported in humans by Tarpey et al. in 2009. Thereafter, Corbett et al. stated that this variant was responsible for an X-linked form of nonphotosensitive trichothiodystrophy associated with profound intellectual disability, microcephaly, partial corpus callosum agenesis, microphallus, and absent or rudimentary testes. This variant was then shown to alter DNA alkylation repair, providing an additional argument supporting its pathogenicity and important clues about the underlying pathophysiology of nonphotosensitive trichothiodystrophy. Using exome sequencing, we identified exactly the same RNF113A variant in two fetuses affected with abnormalities similar to those previously reported by Corbett et al. To our knowledge, this is the second report of a RNF113A pathogenic variant in humans.
Published: 2019
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