6 results on '"Frédéric Tran Mau-Them"'
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2. NEXMIF encephalopathy: an X-linked disorder with male and female phenotypic patterns
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Zaid Afawi, Shekeeb S. Mohammad, Geoffrey Wallace, Ayelet Zerem, Amy L Schneider, Kyra E. Stuurman, Deepak Gill, Alison M. Muir, Russell C. Dale, Gali Heimer, Martino Montomoli, Elena Gardella, Emmanuelle Ranza, Simone Mandelstam, Peter Procopis, Øyvind L. Busk, Christian Korff, Arjan Bouman, Boudewijn Gunning, Connie T.R.M. Stumpel, Yunus Balcik, Christa de Geus, Philipp S. Reif, Yue-Hua Zhang, Sameer M. Zuberi, Volodymyr Kharytonov, Sébastien Küry, Patrick Edery, Sebastien Moutton, Trine Bjørg Hammer, Hannah Stamberger, Joseph D. Symonds, Gaetan Lesca, Samuel F. Berkovic, Massimiliano Rossi, Danique R.M. Vlaskamp, Eric W. Klee, Mark T Mackay, Felix Rosenow, Erica L. Macke, Chirag Patel, Jacob Bie Granild-Jensen, Helenius J. Schelhaas, Danielle M. Andrade, Lynette G. Sadleir, Iris M de Lange, Roseline Caumes, Eva Morava, Frédéric Tran Mau-Them, Anita Cairns, Keren Yosovich, Jing Zhang, Bruria Ben Zeev, Nicolas Chatron, Dorit Lev, Laura Reed, Pauline Monin, Eva H. Brilstra, Birgitte Bertelsen, Georgie Hollingsworth, Nienke E. Verbeek, Heather C Mefford, Rikke S. Møller, Johan R. Helle, Christina Fenger, Meriel McEntagart, Thomas Smol, Mark F. Bennett, Yuri A. Zarate, Renzo Guerrini, Elena Parrini, Candace T. Myers, Judith S. Verhoeven, Bertrand Isidor, Ruth Shalev, David A. Koolen, Ingrid E. Scheffer, Bobby P. C. Koeleman, Lauren Gunderson, Michael S. Hildebrand, Tara Sadoway, Richard J. Leventer, Sanjay M. Sisodiya, Krati Shah, Edith P. Almanza Fuerte, RS: GROW - R4 - Reproductive and Perinatal Medicine, MUMC+: DA KG Polikliniek (9), Klinische Genetica, and Clinical Genetics
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Male ,Pediatrics ,medicine.medical_specialty ,INTELLECTUAL DISABILITY ,Autism Spectrum Disorder ,Encephalopathy ,Nerve Tissue Proteins ,ILAE COMMISSION ,MOSAICISM ,Epilepsy/genetics ,CLASSIFICATION ,Epilepsy ,Brain Diseases/genetics ,Genes, X-Linked ,Seizures ,Intellectual disability ,Genotype ,medicine ,Humans ,developmental and epileptic encephalopathy ,MYOCLONIA ,Atonic seizure ,Genetics (clinical) ,Brain Diseases ,ddc:618 ,Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7] ,KIAA2022 ,business.industry ,MUTATIONS ,medicine.disease ,Phenotype ,Autism Spectrum Disorder/genetics ,Genes, X-Linked/genetics ,Autism spectrum disorder ,intellectual disability ,NEXMIF ,Autism ,epilepsy ,Female ,INACTIVATION ,Human medicine ,Seizures/genetics ,business ,POSITION PAPER - Abstract
Contains fulltext : 231688.pdf (Publisher’s version ) (Closed access) PURPOSE: Pathogenic variants in the X-linked gene NEXMIF (previously KIAA2022) are associated with intellectual disability (ID), autism spectrum disorder, and epilepsy. We aimed to delineate the female and male phenotypic spectrum of NEXMIF encephalopathy. METHODS: Through an international collaboration, we analyzed the phenotypes and genotypes of 87 patients with NEXMIF encephalopathy. RESULTS: Sixty-three females and 24 males (46 new patients) with NEXMIF encephalopathy were studied, with 30 novel variants. Phenotypic features included developmental delay/ID in 86/87 (99%), seizures in 71/86 (83%) and multiple comorbidities. Generalized seizures predominated including myoclonic seizures and absence seizures (both 46/70, 66%), absence with eyelid myoclonia (17/70, 24%), and atonic seizures (30/70, 43%). Males had more severe developmental impairment; females had epilepsy more frequently, and varied from unaffected to severely affected. All NEXMIF pathogenic variants led to a premature stop codon or were deleterious structural variants. Most arose de novo, although X-linked segregation occurred for both sexes. Somatic mosaicism occurred in two males and a family with suspected parental mosaicism. CONCLUSION: NEXMIF encephalopathy is an X-linked, generalized developmental and epileptic encephalopathy characterized by myoclonic-atonic epilepsy overlapping with eyelid myoclonia with absence. Some patients have developmental encephalopathy without epilepsy. Males have more severe developmental impairment. NEXMIF encephalopathy arises due to loss-of-function variants.
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- 2021
3. Phenotypic spectrum and transcriptomic profile associated with germline variants in TRAF7
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Robert A. Hegele, Maria Iascone, Kevin A. Shapiro, Nicolas Chatron, Marwan Shinawi, Joel Charrow, Jeffrey W. Innis, Luitgard Graul-Neumann, Joanna Goes Castro Meira, Anna Lehman, Dawn L. Earl, Victoria R. Sanders, Shannon Rego, David A. Sweetser, Clémantine Dimartino, Wilhelmina S. Kerstjens-Frederikse, Antonio Vitobello, Davor Lessel, Daniel Grinberg, Laurence Faivre, Ryan Peretz, Katherine M. Christensen, Emma Reesor, Erin Beaver, Elizabeth Wohler, Margot R.F. Reijnders, Deborah Barbouth, Anna Cereda, Kaja Kristine Selmer, Melissa A. Walker, Barbro Stadheim, Alessandro Serretti, Helen Kingston, Jill Clayton-Smith, Raymond Lewandowski, Bernarda Lozić, Robert Stratton, Amelia Kirby, Anne H. O’Donnell-Luria, Sara Gabbiadini, Susanna Balcells, Myriam Oufadem, Christel Thauvin, Maha Aly, Wendy K. Chung, Susan M. White, Lauren C. Briere, Thomas Smol, Stanislas Lyonnet, Roberto Colombo, Catherine E. Keegan, Marie T. McDonald, Melanie Parisot, Tiong Yang Tan, Brian Wong, Christopher T. Gordon, Magnus Dehli Vigeland, Frances A. High, Emily Bryant, Audrey Labalme, Nara Sobreira, Arnold Munnich, Jeanne Amiel, Dayna Morel Swols, Raquel Rabionet, Laura Castilla-Vallmanya, Jennifer Heeley, Gunnar Houge, Michael J. Gambello, Bernardo Blanco-Sánchez, Lynn Pais, Olena M. Vaske, Roser Urreizti, Alison Wray, Veronique Pingault, Damien Sanlaville, John Christodoulou, John Millichap, Valérie Cormier-Daire, Parul Jayakar, Helen Cox, Frédéric Tran Mau-Them, Belinda Chong, Victoria Mok Siu, Anne Slavotinek, Antonie J. van Essen, Ingvild Aukrust, Lorne A. Clarke, Rachel Gannaway, Anne Dieux-Coeslier, Patrick Nitschké, Tony Yao, Simon Sadedin, Danielle Karlowicz, Christelle Rougeot, Christine Bole-Feysot, Sandra Yang, Megan T. Cho, Gaetan Lesca, Christiane Zweier, Castilla-Vallmanya L., Selmer K.K., Dimartino C., Rabionet R., Blanco-Sanchez B., Yang S., Reijnders M.R.F., van Essen A.J., Oufadem M., Vigeland M.D., Stadheim B., Houge G., Cox H., Kingston H., Clayton-Smith J., Innis J.W., Iascone M., Cereda A., Gabbiadini S., Chung W.K., Sanders V., Charrow J., Bryant E., Millichap J., Vitobello A., Thauvin C., Mau-Them F.T., Faivre L., Lesca G., Labalme A., Rougeot C., Chatron N., Sanlaville D., Christensen K.M., Kirby A., Lewandowski R., Gannaway R., Aly M., Lehman A., Clarke L., Graul-Neumann L., Zweier C., Lessel D., Lozic B., Aukrust I., Peretz R., Stratton R., Smol T., Dieux-Coeslier A., Meira J., Wohler E., Sobreira N., Beaver E.M., Heeley J., Briere L.C., High F.A., Sweetser D.A., Walker M.A., Keegan C.E., Jayakar P., Shinawi M., Kerstjens-Frederikse W.S., Earl D.L., Siu V.M., Reesor E., Yao T., Hegele R.A., Vaske O.M., Rego S., Shapiro K.A., Wong B., Gambello M.J., McDonald M., Karlowicz D., Colombo R., Serretti A., Pais L., O'Donnell-Luria A., Wray A., Sadedin S., Chong B., Tan T.Y., Christodoulou J., White S.M., Slavotinek A., Barbouth D., Morel Swols D., Parisot M., Bole-Feysot C., Nitschke P., Pingault V., Munnich A., Cho M.T., Cormier-Daire V., Balcells S., Lyonnet S., Grinberg D., Amiel J., Urreizti R., Gordon C.T., MUMC+: DA KG Polikliniek (9), and RS: FHML non-thematic output
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0301 basic medicine ,NF-KAPPA-B ,PROTEIN ,030105 genetics & heredity ,medicine.disease_cause ,Germline ,Transcriptome ,ACTIVATION ,POLYUBIQUITINATION ,Missense mutation ,Exome ,Genetics (clinical) ,Genetics ,Sanger sequencing ,Mutation ,leads ,Necrosi ,craniofacial development ,Phenotype ,Tumor Necrosis Factor Receptor-Associated Peptides and Proteins ,intellectual disability ,patent ductus arteriosu ,symbols ,Mutation, Missense ,Biology ,traf7 ,Article ,akt1 ,target ,03 medical and health sciences ,symbols.namesake ,Necrosis ,patent ductus arteriosus ,medicine ,Humans ,blepharophimosi ,Tumors ,MUTATIONS ,Fibroblasts ,medicine.disease ,Blepharophimosis ,TRAF7 ,blepharophimosis ,GENOMIC ANALYSIS ,Germ Cells ,030104 developmental biology ,MENINGIOMAS - Abstract
PURPOSE: Somatic variants in tumor necrosis factor receptor-associated factor 7 (TRAF7) cause meningioma, while germline variants have recently been identified in seven patients with developmental delay and cardiac, facial, and digital anomalies. We aimed to define the clinical and mutational spectrum associated with TRAF7 germline variants in a large series of patients, and to determine the molecular effects of the variants through transcriptomic analysis of patient fibroblasts.METHODS: We performed exome, targeted capture, and Sanger sequencing of patients with undiagnosed developmental disorders, in multiple independent diagnostic or research centers. Phenotypic and mutational comparisons were facilitated through data exchange platforms. Whole-transcriptome sequencing was performed on RNA from patient- and control-derived fibroblasts.RESULTS: We identified heterozygous missense variants in TRAF7 as the cause of a developmental delay-malformation syndrome in 45 patients. Major features include a recognizable facial gestalt (characterized in particular by blepharophimosis), short neck, pectus carinatum, digital deviations, and patent ductus arteriosus. Almost all variants occur in the WD40 repeats and most are recurrent. Several differentially expressed genes were identified in patient fibroblasts.CONCLUSION: We provide the first large-scale analysis of the clinical and mutational spectrum associated with the TRAF7 developmental syndrome, and we shed light on its molecular etiology through transcriptome studies.
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- 2020
4. Variant recurrence in neurodevelopmental disorders: the use of publicly available genomic data identifies clinically relevant pathogenic missense variants
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Sebastien Moutton, Antonio Vitobello, Laurence Faivre, Christophe Philippe, Christel Thauvin-Robinet, Philippine Garret, Thibaud Jouan, Martin Chevarin, Benoit Urteaga, Yannis Duffourd, Sophie Nambot, Frédéric Tran-Mau-Them, Arthur Sorlin, François Lecoquierre, Ange-Line Bruel, and Christine Coubes
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Male ,0301 basic medicine ,Candidate gene ,Developmental Disabilities ,Mutation, Missense ,030105 genetics & heredity ,Biology ,03 medical and health sciences ,Neurodevelopmental disorder ,Intellectual Disability ,Databases, Genetic ,Intellectual disability ,medicine ,Humans ,Missense mutation ,Exome ,Genetic Predisposition to Disease ,Genetic Testing ,Autistic Disorder ,Gene ,Genetics (clinical) ,Exome sequencing ,Genetics ,Computational Biology ,High-Throughput Nucleotide Sequencing ,Genomics ,Sequence Analysis, DNA ,medicine.disease ,Phenotype ,030104 developmental biology ,Neurodevelopmental Disorders ,Autism ,Female ,Transcription Factors - Abstract
Next-generation sequencing has revealed the major impact of de novo variants (DNVs) in developmental disorders (DD) such as intellectual disability, autism, and epilepsy. However, a substantial fraction of these predicted pathogenic DNVs remains challenging to distinguish from background DNVs, notably the missense variants acting via nonhaploinsufficient mechanisms on specific amino acid residues. We hypothesized that the detection of the same missense variation in at least two unrelated individuals presenting with a similar phenotype could be a powerful approach to reveal novel pathogenic variants. We looked for variations independently present in both our database of >1200 solo exomes and in denovo-db, a large, publicly available collection of de novo variants identified in patients with DD. This approach identified 30 variants with strong evidence of pathogenicity, including variants already classified as pathogenic or probably pathogenic by our team, and also several new variants of interest in known OMIM genes or in novel genes. We identified FEM1B and GNAI2 as good candidate genes for syndromic intellectual disability and confirmed the implication of ACTL6B in a neurodevelopmental disorder. Annotation of local variants with denovo-db can highlight missense variants with high potential for pathogenicity, both facilitating the time-consuming reanalysis process and allowing novel DD gene discoveries.
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- 2019
5. Haploinsufficiency of ARFGEF1 is associated with developmental delay, intellectual disability, and epilepsy with variable expressivity
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Jennifer E. Posey, Arthur Sorlin, Fatema Al Zahrani, Jérôme Govin, Nathalie Marle, Thomas Besnard, Anne-Sophie Denommé-Pichon, Sebastien Moutton, Jill A. Madden, Patrick Callier, Christophe Philippe, Eleina M. England, Julian Delanne, Benjamin Cogné, Ange-Line Bruel, Pankaj B. Agrawal, Maria Iascone, Tabib Dabir, Solène Conrad, Thierry Gautier, Quentin Thomas, Nebal Waill Saadi, Lydie Burglen, Laurence Duplomb, Fowzan S. Alkuraya, Yannis Duffourd, Sylvie Nguyen, Siddharth Banka, Dana Marafi, Marjolaine Willems, Christel Thauvin-Robinet, Philippine Garret, Laurence Faivre, Frédéric Tran Mau-Them, Antonio Vitobello, James R. Lupski, Adam Jackson, Diana Rodriguez, Alice Masurel, Romano Tenconi, Martin Chevarin, and Bertand Isidor
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0301 basic medicine ,Genetics ,Candidate gene ,Heterozygote ,Epilepsy ,ADP ribosylation factor ,In silico ,Heterozygote advantage ,Haploinsufficiency ,030105 genetics & heredity ,Biology ,medicine.disease ,03 medical and health sciences ,030104 developmental biology ,Intellectual Disability ,medicine ,Guanine Nucleotide Exchange Factors ,Humans ,Guanine nucleotide exchange factor ,Genetics (clinical) ,Minigene - Abstract
PURPOSE: ADP ribosylation factor guanine nucleotide exchange factors (ARFGEFs) are a family of proteins implicated in cellular trafficking between the Golgi apparatus and the plasma membrane through vesicle formation. Among them is ARFGEF1/BIG1, a protein involved in axon elongation, neurite development, and polarization processes. ARFGEF1 has been previously suggested as a candidate gene for different types of epilepsies, although its implication in human disease has not been well characterized.METHODS: International data sharing, in silico predictions, and in vitro assays with minigene study, western blot analyses, and RNA sequencing.RESULTS: We identified 13 individuals with heterozygous likely pathogenic variants in ARFGEF1. These individuals displayed congruent clinical features of developmental delay, behavioral problems, abnormal findings on brain magnetic resonance image (MRI), and epilepsy for almost half of them. While nearly half of the cohort carried de novo variants, at least 40% of variants were inherited from mildly affected parents who were clinically re-evaluated by reverse phenotyping. Our in silico predictions and in vitro assays support the contention that ARFGEF1-related conditions are caused by haploinsufficiency, and are transmitted in an autosomal dominant fashion with variable expressivity.CONCLUSION: We provide evidence that loss-of-function variants in ARFGEF1 are implicated in sporadic and familial cases of developmental delay with or without epilepsy.
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- 2021
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6. B3GAT3-related disorder with craniosynostosis and bone fragility due to a unique mutation
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Marjolaine Willems, Olivier Prodhomme, Guillaume Captier, Thomas Guignard, Anne Boland, Kevin Yauy, Ikram Taleb Arrada, Vincent Meyer, Frédéric Tran Mau-Them, Jean-François Deleuze, Patricia Blanchet, Christian Herlin, Jean-Baptiste Rivière, Mouna Barat-Houari, Elodie Sanchez, Yannis Duffourd, Christine Coubes, David Geneviève, Marie-Pascale Le Gac, Jean-Michel Faure, Centre de Référence Anomalies du Développement et Syndromes Malformatifs (CHU de Montpellier), Université Montpellier 1 - UFR de Médecine (UM1 Médecine), Université Montpellier 1 (UM1), 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), Génétique et épigénétique des maladies métaboliques, neurosensorielles et du développement (Inserm U781), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Department of Plastic and Craniofacial Pediatric Surgery, Hôpital Lapeyronie [Montpellier] (CHU), Aide à la Décision pour une Médecine Personnalisé - Laboratoire de Biostatistique, Epidémiologie et Recherche Clinique - EA 2415 (AIDMP), Université Montpellier 1 (UM1)-Université de Montpellier (UM), Département d'imagerie pédiatrique (CHU de Montpellier), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Arnaud de Villeneuve, Centre pluridisciplinaire de diagnostic prénatal (CHU de Montpellier), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Centre pluridisciplinaire de diagnostic prénatal (CHU de Nîmes), Centre Hospitalier Régional Universitaire de Nîmes (CHRU Nîmes), Centre National de Génotypage (CNG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de génétique des maladies rares. Pathologie moleculaire, etudes fonctionnelles et banque de données génétiques (LGMR), Université Montpellier 1 (UM1)-IFR3, Université Montpellier 1 (UM1)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Génétique des maladies multifactorielles (GMM), Université de Lille, Droit et Santé-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Centre Hospitalier Universitaire de Nîmes (CHU Nîmes), IFR3, Université Montpellier 1 (UM1)-Université Montpellier 1 (UM1)-Université de Montpellier (UM)-Institut National de la Santé et de la Recherche Médicale (INSERM), Montpellier 1 - UFR de Médecine ( UM1 Médecine ), Université Montpellier 1 ( UM1 ), Université de Montpellier ( UM ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre Hospitalier Régional Universitaire [Montpellier] ( CHRU Montpellier ), Génétique et épigénétique des maladies métaboliques, neurosensorielles et du développement ( Inserm U781 ), Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Hôpital Lapeyronie [Montpellier] ( CHU ), Centre Hospitalier Régional Universitaire [Montpellier] ( CHRU Montpellier ) -Hôpital Arnaud de Villeneuve, Centre Hospitalier Régional Universitaire [Montpellier] ( CHRU Montpellier ), Centre Hospitalier Régional Universitaire de Nîmes ( CHRU Nîmes ), Centre National de Génotypage ( CNG ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Laboratoire de génétique des maladies rares. Pathologie moleculaire, etudes fonctionnelles et banque de données génétiques, Université Montpellier 1 ( UM1 ) -IFR3-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université de Montpellier ( UM ), Génétique des maladies multifactorielles ( GMM ), Université de Lille, Droit et Santé-Centre National de la Recherche Scientifique ( CNRS ), Université de Montpellier (UM)-Université Montpellier 1 (UM1), Département de génétique médicale, maladies rares et médecine personnalisée [CHRU Montpellier], Département Pédiatrie [CHRU Montpellier], Pôle Femme Mère Enfant [CHRU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), and Hôpital Universitaire Carémeau [Nîmes] (CHU Nîmes)
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0301 basic medicine ,Pediatrics ,medicine.medical_specialty ,Antley-Bixler syndrome ,Antley–Bixler syndrome ,Connective tissue ,Bone and Bones ,Ultrasonography, Prenatal ,Craniosynostosis ,Diagnosis, Differential ,Craniosynostoses ,03 medical and health sciences ,B3GAT3 ,medicine ,Humans ,Genetic Predisposition to Disease ,Joint Contracture ,Glucuronosyltransferase ,[ SDV.GEN.GH ] Life Sciences [q-bio]/Genetics/Human genetics ,Foot deformity ,Genetic Association Studies ,Genetics (clinical) ,Whole Genome Sequencing ,Shprintzen-Goldberg syndrome ,business.industry ,Skull ,Shprintzen–Goldberg syndrome ,Sequence Analysis, DNA ,Syndrome ,medicine.disease ,3. Good health ,Phenotype ,030104 developmental biology ,medicine.anatomical_structure ,[SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics ,Mutation ,Mutation (genetic algorithm) ,business - Abstract
International audience; PurposeBased on prenatal suspicion of the combination of radioulnar or radiohumeral synostosis and a peculiar shape of the skull suggestive of craniosynostosis, we report on six patients from four unrelated consanguineous families in whom Antley-Bixler syndrome was suspected during the prenatal period without mutation in genes known to be associated with the syndrome.MethodsMolecular diagnosis involved whole-exome and gene-panel sequencing.Results:All sequenced patients showed a unique homozygous mutation of c.667G>A, p.Gly223Ser (NM_012200) in the beta-1,3-glucuronyltransferase 3 (B3GAT3) gene known to be involved in linkeropathy syndrome. Linkeropathies correspond to a recently identified group of heterogeneous genetic syndromes along a spectrum of skeletal and connective tissue disorders. These patients featured mainly craniosynostosis, midface hypoplasia, bilateral radioulnar synostosis, multiple neonatal fractures, dislocated joints, joint contracture, long fingers, foot deformity, and cardiovascular abnormalities. All died before 1 year of age.ConclusionWe identified a novel B3GAT3-related disorder with craniosynostosis and bone fragility, due to a unique homozygous mutation in B3GAT3. This syndrome should be considered in the prenatal period in light of the severe outcome and as an alternative diagnosis to Antley-Bixler or Shprintzen-Goldberg syndrome.
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- 2018
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