Search

Your search keyword '"Guillaume Banneau"' showing total 8 results
Start Over Author "Guillaume Banneau" Publisher hal ccsd
8 results on '"Guillaume Banneau"'

1. Phenoconversion from Spastic Paraplegia to ALS/FTD Associated with CYP7B1 Compound Heterozygous Mutations

Author

Julian Theuriet, Antoine Pegat, Pascal Leblanc, Sandra Vukusic, Cécile Cazeneuve, Stéphanie Millecamps, Guillaume Banneau, Marine Guillaud-Bataille, Emilien Bernard, Hôpital neurologique et neurochirurgical Pierre Wertheimer [CHU - HCL], Hospices Civils de Lyon (HCL), Institut NeuroMyoGène (INMG), 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), Département de Neuroradiologie [Centre Hospitalier Lyon Sud - HCL], Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL)-Hospices Civils de Lyon (HCL), Unité fonctionnelle de neurogénétique moléculaire et cellulaire, 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), Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), Institut National de la Santé et de la Recherche Médicale (INSERM)-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)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut Gustave Roussy (IGR), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut du Cerveau = Paris Brain Institute (ICM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Gestionnaire, HAL Sorbonne Université 5

Subjects
amyotrophic lateral sclerosis, CYP7B1, Genetics, Case Report, ALS/FTD, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], [SDV.NEU] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], QH426-470, hereditary spastic paraplegia, SPG5, frontotemporal dementia, nervous system diseases
Abstract

Biallelic mutations in the CYP7B1 gene lead to spastic paraplegia-5 (SPG5). We report herein the case of a patient whose clinical symptoms began with progressive lower limb spasticity during childhood, and who secondly developed amyotrophic lateral sclerosis/frontotemporal dementia (ALS/FTD) at the age of 67 years. Hereditary spastic paraplegia (HSP) gene analysis identified the compound heterozygous mutations c.825T>A (pTyr275*) and c.1193C>T (pPro398Leu) in CYP7B1 gene. No other pathogenic variant in frequent ALS/FTD causative genes was found. The CYP7B1 gene seems, therefore, to be the third gene associated with the phenoconversion from HSP to ALS, after the recently described UBQLN2 and ERLIN2 genes. We therefore expand the phenotype associated with CYP7B1 biallelic mutations and make an assumption about a link between cholesterol dyshomeostasis and ALS/FTD.

Published
2021
Full Text
View/download PDF

2. Evidence of mosaicism in SPAST variant carriers in four French families

Author

William Camu, Guillaume Banneau, Samia Ait Said, Eric LeGuern, Christel Depienne, Bophara Kol, Caroline Rooryck, Clarisse Scherer-Gagou, Giovanni Stevanin, Laurène Tissier, Perrine Pennamen, Bénédicte Héron, Cyril Goizet, Marine Guillaud-Bataille, Chloé Angelini, 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), Groupe hospitalier Pellegrin, Service de Génétique médicale [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Hôpital Gui de Chauliac, Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Unité Fonctionnelle de Génétique Clinique [CHU Pitié Salpétrière], Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), University of Duisbourg-Essen, Service de Neuropédiatrie [CHU Trousseau], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL), and Institut Fédératif de Biologie (IFB) - Hôpital Purpan

Subjects
Male, MESH: Alleles, Child, Comparative Genomic Hybridization, Female, France, Gene Frequency, Heterozygote, High-Throughput Nucleotide Sequencing, Spastin, Medizin, Brief Communication, Spastic Paraplegias, 03 medical and health sciences, Genetic etiology, Genetics, Spastic, Medicine, Humans, Diagnostic laboratory, Genetics (clinical), Alleles, 0303 health sciences, business.industry, Mosaicism, Spastic Paraplegia, Hereditary, 030305 genetics & heredity, Homozygote, Middle Aged, Penetrance, 3. Good health, Pedigree, nervous system diseases, Phenotype, Somatic mosaicism, Mutation, business, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract

International audience; Hereditary spastic paraplegias (HSP) are heterogeneous disorders, with more than 70 causative genes. Variants in SPAST are the most frequent genetic etiology and are responsible for spastic paraplegia type 4 (SPG4). Age at onset can vary, even between patients from the same family, and incomplete penetrance is described. Somatic mosaicism is extremely rare with only three patients reported in the literature. We report here SPAST mosaic variants in four unrelated patients. We confirm that mosaicism in SPAST is a very rare event with only four identified cases on more than 300 patients with a SPAST variant previously described by our clinical diagnostic laboratory.

Published
2021
Full Text
View/download PDF

3. Increasing involvement of CAPN1 variants in spastic ataxias and phenotype-genotype correlations

Author

Marie Coutelier, Kristina Lidström, Malin Kvarnung, Rayomand Press, Rita Rodrigues, Jean-Philippe Azulay, Meriem Tazir, Giovanni Vazza, Sara Morais, Guillaume Banneau, Elena Pegoraro, Mélanie Papin, Giovanni Stevanin, José Leal Loureiro, Giulia Coarelli, Eric Le Guern, Alexandra Durr, Isabel Alonso, Alexis Brice, Jean-Loup Méreaux, Per Svenningsson, Daniel Nilsson, Frederic Taithe, Vincent Huin, Cyril Goizet, Rémi Valter, Cristina Firanescu, Martin Paucar, Livia Parodi, Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), Institut National de la Santé et de la Recherche Médicale (INSERM)-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)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Karolinska University Hospital [Stockholm]

Subjects
Male, Neurology, Dysarthria, CAPN1, 0302 clinical medicine, Spastic, Missense mutation, Age of Onset, Child, Genetics (clinical), Genetics, Sanger sequencing, 0303 health sciences, Calpain, 3. Good health, Pedigree, Phenotype, Muscle Spasticity, symbols, Cerebellar atrophy, Female, Original Article, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], medicine.symptom, Cerebellar ataxia, Neurodegeneration, Spastic ataxia, Spastic paraplegia, Adult, medicine.medical_specialty, Cerebellar Ataxia, 03 medical and health sciences, Cellular and Molecular Neuroscience, symbols.namesake, Young Adult, Intellectual Disability, medicine, Humans, Spinocerebellar Ataxias, Spasticity, Genetic Association Studies, 030304 developmental biology, business.industry, Spastic Paraplegia, Hereditary, nervous system diseases, Optic Atrophy, Mutation, business, 030217 neurology & neurosurgery
Abstract

Spastic ataxias are rare neurogenetic disorders involving spinocerebellar and pyramidal tracts. Many genes are involved. Among them, CAPN1, when mutated, is responsible for a complex inherited form of spastic paraplegia (SPG76). We report the largest published series of 21 novel patients with nine new CAPN1 disease-causing variants and their clinical characteristics from two European university hospitals (Paris and Stockholm). After a formal clinical examination, causative variants were identified by next-generation sequencing and confirmed by Sanger sequencing. CAPN1 variants are a rare cause (~ 1.4%) of young-adult-onset spastic ataxia; however, together with all published cases, they allowed us to better describe the clinical and genetic spectra of this form. Truncating variants are the most frequent, and missense variants lead to earlier age at onset in favor of an additional deleterious effect. Cerebellar ataxia with cerebellar atrophy, dysarthria and lower limb weakness are often associated with spasticity. We also suggest that cognitive impairment and depression should be assessed specifically in the follow-up of SPG76 cases.

Published
2021
Full Text
View/download PDF

4. RNF170-related hereditary spastic paraplegia: confirmation by a novel mutation

Author

Guillaume Banneau, Laurène Tissier, Sandra Mercier, Julien Buratti, Bophara Kol, Samia Ait Said, Giovanni Stevanin, Jean-Madeleine de Sainte Agathe, Yann Péréon, Jean-Yves Mahé, Eric LeGuern, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre hospitalier universitaire de Nantes (CHU Nantes), Hôtel-Dieu de Nantes, Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), Institut National de la Santé et de la Recherche Médicale (INSERM)-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)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), STEVANIN, Giovanni, Institut du Cerveau = Paris Brain Institute (ICM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
musculoskeletal diseases, 0301 basic medicine, congenital, hereditary, and neonatal diseases and abnormalities, Ataxia, Hereditary spastic paraplegia, Ubiquitin-Protein Ligases, [SDV]Life Sciences [q-bio], 03 medical and health sciences, 0302 clinical medicine, Spastic, Medicine, Humans, Exome sequencing, ComputingMilieux_MISCELLANEOUS, Genetics, business.industry, Spastic Paraplegia, Hereditary, Homozygote, Spastic paraparesis, medicine.disease, nervous system diseases, Pedigree, [SDV] Life Sciences [q-bio], 030104 developmental biology, Neurology, Mutation, Neurology (clinical), medicine.symptom, business, Novel mutation, 030217 neurology & neurosurgery
Abstract

Background Spastic paraparesis and biallelic variants functionally characterized as deleterious in the RNF170 gene have recently been reported by Wagner et al. 2019, strongly supporting the involvement of this gene in hereditary spastic paraplegia. Methods Exome sequencing was performed on 6 hereditary spastic paraplegia families previously tested on an hereditary spastic paraplegia-specific panel. Results We describe here a novel hereditary spastic paraplegia family with 4 affected members carrying a homozygous p.(Tyr114*) stop gain variant in RNF170. Conclusions We confirm the involvement of biallelic truncating variants in RNF170 in a novel form of hereditary spastic paraplegia. © 2020 International Parkinson and Movement Disorder Society.

Published
2021
Full Text
View/download PDF

5. Clinical, neuropathological, and genetic characterization of STUB1 variants in cerebellar ataxias: a frequent cause of predominant cognitive impairment

Author

Thomas Roux, Mathieu Barbier, Mélanie Papin, Claire-Sophie Davoine, Sabrina Sayah, Giulia Coarelli, Perrine Charles, Cecilia Marelli, Livia Parodi, Christine Tranchant, Cyril Goizet, Stephan Klebe, Ebba Lohmann, Lionel Van Maldergem, Christine van Broeckhoven, Marie Coutelier, Christelle Tesson, Giovanni Stevanin, Charles Duyckaerts, Alexis Brice, Alexandra Durr, Frédéric Darios, Sylvie Forlani, Pitié-Salpêtrière Site, Guillaume Banneau, Cécile Cazeneuve, Bertrand Fontaine, Jean-Philippe Azulay, Odile Boesfplug-Tanguy, Didier Hannequin, Jamilé Hazan, Andrea Burgo, Christophe Verny, Michel Koenig, Pierre Labauge, Karine N’guyen, Diana Rodriguez, Soraya Belarbi, Abdelmadjid Hamri, Meriem Tazir, Sylvia Boesch, Massimo Pandolfo, Jardim Laura, Velina Guergueltcheva, Ivalo Tournev, Olga Lucia Pedraza Linarès, Jørgen E. Nielsen, Kirsten Svenstrup, Maha Zaki, Peter Bauer, Lüdger Schöls, Rebecca Schüle, Alexander Lossos, Maria-Teresa Bassi, Manuela Basso, Enrico Bertini, Alfredo Brusco, Carlo Casali, Giorgio Casari, Chiara Criscuolo, Alessandro Filla, Laura Orsi, Filippo M. Santorelli, Enza Maria Valente, Marinela Vavla, Giovanni Vazza, André Megarbane, Ali Benomar, Berry Kremer, Willeke Van Roon-Mom, Richard Roxburgh, Anne Kjersti Erichsen, Chantal Tallaksen, Isabel Alonso, Paula Coutinho, José Léal Loureiro, Jorge Sequeiros, Mustapha Salih, Vladimir S. Kostic, Idoia Rouco Axpe, Liena Elsayed, Martin Arce Paucar, Samir Roumani, Soong Bing-Wen, Evan Reid, Nethisinghe Suran, Thomas Warner, Nicholas Wood, Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL), Service de Génétique Cytogénétique et Embryologie [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Département de neurologie [Montpellier], Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [Montpellier]-Université de Montpellier (UM), Mécanismes moléculaires dans les démences neurodégénératives (MMDN), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de la Santé et de la Recherche Médicale (INSERM)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), CHU Strasbourg, 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), CHU Bordeaux [Bordeaux], Universitätsklinikum Essen [Universität Duisburg-Essen] (Uniklinik Essen), University of Tübingen, Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), University of Antwerp (UA), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), SPATAX Network, Roux, T., Barbier, M., Papin, M., Davoine, C. -S., Sayah, S., Coarelli, G., Charles, P., Marelli, C., Parodi, L., Tranchant, C., Goizet, C., Klebe, S., Lohmann, E., Van Maldergen, L., van Broeckhoven, C., Coutelier, M., Tesson, C., Stevanin, G., Duyckaerts, C., Brice, A., Durr, A., Darios, F., Forlani, S., Site, P. -S., Banneau, G., Cazeneuve, C., Fontaine, B., Azulay, J. -P., Boesfplug-Tanguy, O., Hannequin, D., Hazan, J., Burgo, A., Verny, C., Koenig, M., Labauge, P., N'Guyen, K., Rodriguez, D., Belarbi, S., Hamri, A., Tazir, M., Boesch, S., Pandolfo, M., Laura, J., Guergueltcheva, V., Tournev, I., Pedraza Linares, O. L., Nielsen, J. E., Svenstrup, K., Zaki, M., Bauer, P., Schols, L., Schule, R., Lossos, A., Bassi, M. -T., Basso, M., Bertini, E., Brusco, A., Casali, C., Casari, G., Criscuolo, C., Filla, A., Orsi, L., Santorelli, F. M., Valente, E. M., Vavla, M., Vazza, G., Megarbane, A., Benomar, A., Kremer, B., Van Roon-Mom, W., Roxburgh, R., Erichsen, A. K., Tallaksen, C., Alonso, I., Coutinho, P., Loureiro, J. L., Sequeiros, J., Salih, M., Kostic, V. S., Rouco Axpe, I., Elsayed, L., Paucar, M. A., Roumani, S., Bing-Wen, S., Reid, E., Suran, N., Warner, T., and Wood, N.

Subjects
Male, Pathology, MESH: Ataxia, Purkinje cell, Medizin, MESH: Cognitive Dysfunction, 0302 clinical medicine, spinocerebellar ataxia, ATP-Dependent Proteases, SCA48, Medicine, Genetics (clinical), 0303 health sciences, Penetrance, 3. Good health, MESH: Cerebellar Ataxia, MESH: ATPases Associated with Diverse Cellular Activities, medicine.anatomical_structure, Spinocerebellar ataxia, Female, medicine.symptom, Frontotemporal dementia, medicine.medical_specialty, Ataxia, Cerebellar Ataxia, MESH: Spinocerebellar Ataxias, Ubiquitin-Protein Ligases, Neuropathology, 03 medical and health sciences, MESH: ATP-Dependent Proteases, Atrophy, Humans, Spinocerebellar Ataxias, Cognitive Dysfunction, 030304 developmental biology, cognitive impairment, SCAR16, STUB1, MESH: Humans, Cerebellar ataxia, business.industry, medicine.disease, MESH: Ubiquitin-Protein Ligases, MESH: Male, ATPases Associated with Diverse Cellular Activities, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Human medicine, business, MESH: Female, 030217 neurology & neurosurgery
Abstract

International audience; Purpose: Pathogenic variants in STUB1 were initially described in autosomal recessive spinocerebellar ataxia type 16 and dominant cerebellar ataxia with cerebellar cognitive dysfunction (SCA48).Methods: We analyzed a large series of 440 index cerebellar ataxia cases, mostly with dominant inheritance.Results: STUB1 variants were detected in 50 patients. Age at onset and severity were remarkably variable. Cognitive impairment, predominantly frontal syndrome, was observed in 54% of STUB1 variant carriers, including five families with Huntington or frontotemporal dementia disease-like phenotypes associated with ataxia, while no STUB1 variant was found in 115 patients with frontotemporal dementia. We report neuropathological findings of a STUB1 heterozygous patient, showing massive loss of Purkinje cells in the vermis and major loss in the cerebellar hemispheres without atrophy of the pons, hippocampus, or cerebral cortex. This screening of STUB1 variants revealed new features: (1) the majority of patients were women (70%) and (2) "second hits" in AFG3L2, PRKCG, and TBP were detected in three families suggesting synergic effects.Conclusion: Our results reveal an unexpectedly frequent (7%) implication of STUB1 among dominantly inherited cerebellar ataxias, and suggest that the penetrance of STUB1 variants could be modulated by other factors, including sex and variants in other ataxia-related genes.

Published
2020
Full Text
View/download PDF

6. Spastic paraplegia due to recessive or dominant mutations in ERLIN2 can convert to ALS

Author

Jean-Philippe Camdessanché, Emilien Bernard, Jean-Christophe Antoine, Guillaume Banneau, Etienne Allart, Maria-Del-Mar Amador, François Muratet, Elisa Teyssou, Gabrielle Rudolf, Giovanni Stevanin, Christine Tranchant, Véronique Danel-Brunaud, Marie-Céline Fleury, Stéphanie Millecamps, Mathieu Anheim, Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), Institut National de la Santé et de la Recherche Médicale (INSERM)-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)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Neurologie et Pathologie du Mouvement, Hôpital Roger Salengro, Centre Hospitalier Universitaire (CHU) de Lille, CHU de Lille, Service de neurologie [CHU de Saint-Étienne], Centre Hospitalier Universitaire de Saint-Etienne (CHU de Saint-Etienne), Service de Neurologie [CHU Strasbourg], Hôpital de Hautepierre [Strasbourg]-Centre Hospitalier Universitaire de Strasbourg (CHU de Strasbourg ), 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), Service de Neurologie [Strasbourg], CHU Strasbourg-Hopital Civil, Service de Neurologie [Hospices civils de Lyon - Hôpital Pierre Wertheimer], Hospices Civils de Lyon (HCL)-Hôpital neurologique et neurochirurgical Pierre Wertheimer [CHU - HCL], Hospices Civils de Lyon (HCL), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL), MILLECAMPS, Stéphanie, Institut du Cerveau = Paris Brain Institute (ICM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)

Subjects
Hereditary spastic paraplegia, [SDV.GEN.GH] Life Sciences [q-bio]/Genetics/Human genetics, Article, 03 medical and health sciences, 0302 clinical medicine, C9orf72, medicine, Spasticity, Amyotrophic lateral sclerosis, Exome, Tetraplegia, Genetics (clinical), ComputingMilieux_MISCELLANEOUS, 030304 developmental biology, Bulbar palsy, Genetics, 0303 health sciences, business.industry, [SCCO.NEUR]Cognitive science/Neuroscience, [SCCO.NEUR] Cognitive science/Neuroscience, medicine.disease, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Neurology (clinical), medicine.symptom, business, Trinucleotide repeat expansion, 030217 neurology & neurosurgery
Abstract

ObjectiveThe aim of this study was to evaluate whether mutations in ERLIN2, known to cause SPG18, a recessive hereditary spastic paraplegia (SP) responsible for the degeneration of the upper motor neurons leading to weakness and spasticity restricted to the lower limbs, could contribute to amyotrophic lateral sclerosis (ALS), a distinct and more severe motor neuron disease (MND), in which the lower motor neurons also profusely degenerates, leading to tetraplegia, bulbar palsy, respiratory insufficiency, and ultimately the death of the patients.MethodsWhole-exome sequencing was performed in a large cohort of 200 familial ALS and 60 sporadic ALS after a systematic screening for C9orf72 hexanucleotide repeat expansion. ERLIN2 variants identified by exome analysis were validated using Sanger analysis. Segregation of the identified variant with the disease was checked for all family members with available DNA.ResultsHere, we report the identification of ERLIN2 mutations in patients with a primarily SP evolving to rapid progressive ALS, leading to the death of the patients. These mutations segregated with the disease in a dominant (V168M) or recessive (D300V) manner in these families or were found in apparently sporadic cases (N125S).ConclusionsInheritance of ERLIN2 mutations appears to be, within the MND spectrum, more complex that previously reported. These results expand the clinical phenotype of ERLIN2 mutations to a severe outcome of MND and should be considered before delivering a genetic counseling to ERLIN2-linked families.

Published
2019
Full Text
View/download PDF

7. An array CGH based genomic instability index (G2I) is predictive of clinical outcome in breast cancer and reveals a subset of tumors without lymph node involvement but with poor prognosis

Author

Charles Theillet, Guillaume Banneau, Michel Longy, Véronique Brouste, Aurélien de Reyniès, Charlotte Primois, Gaëtan MacGrogan, Marc Debled, Christine Tunon de Lara, Natalie Jones, Béatrice Orsetti, Nabila Elarouci, Sana Sfar, Mickaël Guedj, Isabelle de Mascarel, Françoise Bonnet, Nicolas Sevenet, Pathologie Centre de lutte contre le cancer, Institut Bergonié [Bordeaux], UNICANCER-UNICANCER, Validation et identification de nouvelles cibles en oncologie (VINCO), UNICANCER-UNICANCER-Université Bordeaux Segalen - Bordeaux 2-Institut National de la Santé et de la Recherche Médicale (INSERM), 'Cartes d'Identité des Tumeurs ' program (CIT), Ligue Nationale Contre le Cancer, Unité de Recheche et d'Epidémiologie Cliniques (UREC), Institut de recherche en cancérologie de Montpellier (IRCM - U896 Inserm - UM1), CRLCC Val d'Aurelle - Paul Lamarque-Université de Montpellier (UM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Montpellier 1 (UM1), Service de Chirurgie, Service d'Oncologie Médicale, Service de Pathologie, This work was also funded by the 'Institut National du Cancer' (INCa) grant GSO -ACI 2004 renewed 2007, by the Dordogne Cancer League and the Lions Club of Bergerac. NJ was funded by the Association pour la Recherche sur le Cancer (ARC) and SS by the Institut Bergonié., BMC, Ed., Ligue Nationale Contre le Cancer (LNCC), and Université Montpellier 1 (UM1)-CRLCC Val d'Aurelle - Paul Lamarque-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM)

Subjects
Genome instability, Genetic instability, Array CGH, Bioinformatics, 0302 clinical medicine, Breast cancer, Recurrence, Cluster Analysis, Genetics(clinical), Stage (cooking), Lymph node, Genetics (clinical), 0303 health sciences, Comparative Genomic Hybridization, Middle Aged, Prognosis, 3. Good health, medicine.anatomical_structure, 030220 oncology & carcinogenesis, Lymphatic Metastasis, [SDV.BBM.GTP] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN], Female, Research Article, Adult, lcsh:Internal medicine, lcsh:QH426-470, Breast Neoplasms, Biology, Genomic Instability, 03 medical and health sciences, Text mining, [SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN], medicine, Genetics, Humans, lcsh:RC31-1245, 030304 developmental biology, Aged, business.industry, Genome, Human, Gene Expression Profiling, medicine.disease, Human genetics, lcsh:Genetics, Mutation, Human genome, Lymph Nodes, Tumor Suppressor Protein p53, business, Comparative genomic hybridization, Follow-Up Studies
Abstract

Background Despite entering complete remission after primary treatment, a substantial proportion of patients with early stage breast cancer will develop metastases. Prediction of such an outcome remains challenging despite the clinical use of several prognostic parameters. Several reports indicate that genomic instability, as reflected in specific chromosomal aneuploidies and variations in DNA content, influences clinical outcome but no precise definition of this parameter has yet been clearly established. Methods To explore the prognostic value of genomic alterations present in primary tumors, we performed a comparative genomic hybridization study on BAC arrays with a panel of breast carcinomas from 45 patients with metastatic relapse and 95 others, matched for age and axillary node involvement, without any recurrence after at least 11 years of follow-up. Array-CGH data was used to establish a two-parameter index representative of the global level of aneusomy by chromosomal arm, and of the number of breakpoints throughout the genome. Results Application of appropriate thresholds allowed us to distinguish three classes of tumors highly associated with metastatic relapse. This index used with the same thresholds on a published set of tumors confirms its prognostic significance with a hazard ratio of 3.24 [95CI: 1.76-5.96] p = 6.7x10-5 for the bad prognostic group with respect to the intermediate group. The high prognostic value of this genomic index is related to its ability to individualize a specific group of breast cancers, mainly luminal type and axillary node negative, showing very high genetic instability and poor outcome. Indirect transcriptomic validation was obtained on independent data sets. Conclusion Accurate evaluation of genetic instability in breast cancers by a genomic instability index (G2I) helps individualizing specific tumors with previously unexpected very poor prognosis.

Published
2012
Full Text
View/download PDF

8. Molecular apocrine differentiation is a common feature of breast cancer in patients with germline PTEN mutations

Author

Michel Longy, Mickaël Guedj, Gaëtan MacGrogan, Aurélien de Reyniès, Olivier Ingster, Guillaume Banneau, Richard Iggo, Nicolas Sevenet, Isabelle de Mascarel, Pierre Vabres, Albert David, Valérie Bonadona, Catherine Dugast, Frédéric Caux, Françoise Bonnet, Brigitte Gilbert-Dussardier, Renaud Schiappa, Valérie Velasco, Biostatistiques santé, Département biostatistiques et modélisation pour la santé et l'environnement [LBBE], Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS), Validation et identification de nouvelles cibles en oncologie (VINCO), Institut Bergonié [Bordeaux], UNICANCER-UNICANCER-Université Bordeaux Segalen - Bordeaux 2-Institut National de la Santé et de la Recherche Médicale (INSERM), Programme 'Carte d'Identité des Tumeurs', Ligue Nationale Contre le Cancer, Département de pathologie, UNICANCER-UNICANCER, Service d'oncogénétique, Centre Léon Bérard [Lyon], Service de génétique médicale - Unité de génétique clinique [Nantes], Université de Nantes (UN)-Centre hospitalier universitaire de Nantes (CHU Nantes), Département d'oncologie médicale [Rennes], CRLCC Eugène Marquis (CRLCC), Service de génétique clinique [Poitiers], Centre hospitalier universitaire de Poitiers (CHU Poitiers), 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), Service de Dermatologie (CHU de Dijon), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Service de dermatologie [Avicenne], Université Paris 13 (UP13)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Avicenne [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de génétique constitutionelle, This work is part of the national program 'Cartes d'Identité des Tumeurs' [10] funded and developed by the 'Ligue Nationale contre le Cancer'. We thank the Charente Maritime Cancer League, the Pyrenees Atlantiques Cancer League, the Canceropole Grand Sud-Ouest (ACI 2004 renewed 2007) and the Bergerac Lions Club for funding to ML. We thank the French Foundation for Medical Research (FRM) and the Bergonié Cancer Institute for funding to GB., BMC, Ed., Ligue Nationale Contre le Cancer (LNCC), Université Bordeaux Segalen - Bordeaux 2-Institut Bergonié - CRLCC Bordeaux-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Bergonié - CRLCC Bordeaux, and Université Paris 13 (UP13)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Hôpital Avicenne

Subjects
MESH: Signal Transduction, Pathology, Receptor, ErbB-2, medicine.disease_cause, MESH: gamma-Glutamyltransferase, Phosphatidylinositol 3-Kinases, 0302 clinical medicine, Surgical oncology, MESH: Hamartoma Syndrome, Multiple, MESH: Germ-Line Mutation, Cluster Analysis, skin and connective tissue diseases, Oligonucleotide Array Sequence Analysis, Medicine(all), Comparative Genomic Hybridization, Principal Component Analysis, 0303 health sciences, biology, Apocrine, gamma-Glutamyltransferase, Immunohistochemistry, 3. Good health, MESH: Receptor, erbB-2, 030220 oncology & carcinogenesis, Apocrine Breast Carcinoma, Breast carcinoma, Signal Transduction, Research Article, medicine.medical_specialty, [SDV.OT]Life Sciences [q-bio]/Other [q-bio.OT], Class I Phosphatidylinositol 3-Kinases, Breast Neoplasms, [SDV.CAN]Life Sciences [q-bio]/Cancer, MESH: PTEN Phosphohydrolase, 03 medical and health sciences, MESH: Gene Expression Profiling, Germline mutation, Breast cancer, [SDV.CAN] Life Sciences [q-bio]/Cancer, medicine, Humans, PTEN, Germ-Line Mutation, 030304 developmental biology, MESH: Principal Component Analysis, MESH: Humans, Gene Expression Profiling, PTEN Phosphohydrolase, MESH: Immunohistochemistry, medicine.disease, MESH: Cluster Analysis, MESH: Comparative Genomic Hybridization, MESH: Phosphatidylinositol 3-Kinases, MESH: Oligonucleotide Array Sequence Analysis, Cancer research, biology.protein, Hamartoma Syndrome, Multiple, Carcinogenesis, MESH: Breast Neoplasms
Abstract

International audience; INTRODUCTION: Breast carcinoma is the main malignant tumor occurring in patients with Cowden disease, a cancer-prone syndrome caused by germline mutation of the tumor suppressor gene PTEN characterized by the occurrence throughout life of hyperplastic, hamartomatous and malignant growths affecting various organs. The absence of known histological features for breast cancer arising in a PTEN-mutant background prompted us to explore them for potential new markers. METHODS: We first performed a microarray study of three tumors from patients with Cowden disease in the context of a transcriptomic study of 74 familial breast cancers. A subsequent histological and immunohistochemical study including 12 additional cases of Cowden disease breast carcinomas was performed to confirm the microarray data. RESULTS: Unsupervised clustering of the 74 familial tumors followed the intrinsic gene classification of breast cancer except for a group of five tumors that included the three Cowden tumors. The gene expression profile of the Cowden tumors shows considerable overlap with that of a breast cancer subgroup known as molecular apocrine breast carcinoma, which is suspected to have increased androgenic signaling and shows frequent ERBB2 amplification in sporadic tumors. The histological and immunohistochemical study showed that several cases had apocrine histological features and expressed GGT1, which is a potential new marker for apocrine breast carcinoma. CONCLUSIONS: These data suggest that activation of the ERBB2-PI3K-AKT pathway by loss of PTEN at early stages of tumorigenesis promotes the formation of breast tumors with apocrine features.

Published
2010
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results