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1. ADAR1 mediated regulation of neural crest derived melanocytes and Schwann cell development

Author: Gacem, Nadjet, Kavo, Anthula, Zerad, Lisa, Richard, Laurence, Mathis, Stephane, Kapur, Raj, Parisot, Mélanie, Amiel, Jeanne, de La Grange, Pierre, Pingault, Veronique, Vallat, Jean, Bondurand, Nadege, Dufour, Sylvie, Embryology and genetics of human malformation (Equipe Inserm U1163), 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), Morphogénèse et Génétique Moléculaire [Créteil], Institut Mondor de Recherche Biomédicale (IMRB), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-IFR10-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-IFR10, Université Paris-Est Créteil Val-de-Marne - Faculté de médecine (UPEC Médecine), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Department of Neurology [Limoges], Centre de référence national neuropathies périphériques rares [CHU Limoges], CHU Limoges-CHU Limoges, Nerve-Muscle Unit [Bordeaux], Department of Neurology [Bordeaux], Grand Sud-Ouest National Reference Center for Neuromuscular Disorders [Bordeaux], Pellegrin Hospital [Bordeaux], CHU Bordeaux [Bordeaux]-CHU Bordeaux [Bordeaux]-Pellegrin Hospital [Bordeaux], CHU Bordeaux [Bordeaux]-CHU Bordeaux [Bordeaux]-Grand Sud-Ouest National Reference Center for Neuromuscular Disorders [Bordeaux], CHU Bordeaux [Bordeaux]-CHU Bordeaux [Bordeaux], University of Washington [Seattle], Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), GenoSplice [Paris], Service de Génétique Moléculaire [Paris], CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Eq. 6 - Morphogenèse et génétique moléculaire (Inserm U955 - IMRB), This work was supported by the Fondation ARC pour la recherche sur le cancer and AFM trampoline grant to N.B., Institut National Pour la Santé de la Recherche Médicale (INSERM), state funding from the Agence Nationale de la Recherche under the 'Investissements d’avenir' program [ANR-10-IAHU-01] and the MSDAvenir fund [DEVO—DECODE project]. N.G. and A.K. both received a 3-year Ph.D. fellowship from ED-SVS402, L.Z. received a 3-year Ph.D. fellowship from ED-BioSPC. N.G. is a beneficiary of an Institut Imagine 4th-year Ph.D. fellowship (7 months) from Fondation Bettencourt Schueller and supported by Fondation des treilles., ANR-10-IAHU-0001,Imagine,Institut Hospitalo-Universitaire Imagine(2010), Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Bodescot, Myriam, and Instituts Hospitalo-Universitaires - Institut Hospitalo-Universitaire Imagine - - Imagine2010 - ANR-10-IAHU-0001 - IAHU - VALID
Subjects: RNA editing, Adenosine Deaminase, Science, Neurogenesis, [SDV.GEN.GH] Life Sciences [q-bio]/Genetics/Human genetics, Article, Mice, Developmental biology, Animals, lcsh:Science, Skin, Mice, Knockout, [SDV.BDD.EO] Life Sciences [q-bio]/Development Biology/Embryology and Organogenesis, Gene Expression Regulation, Developmental, Cell Differentiation, Heart, Sciatic Nerve, Up-Regulation, Disease Models, Animal, [SDV.BDD.EO]Life Sciences [q-bio]/Development Biology/Embryology and Organogenesis, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Neural Crest, embryonic structures, Melanocytes, lcsh:Q, Interferons, Schwann Cells, Transcriptome, Gene Deletion
Abstract: The neural crest gives rise to numerous cell types, dysfunction of which contributes to many disorders. Here, we report that adenosine deaminase acting on RNA (ADAR1), responsible for adenosine-to-inosine editing of RNA, is required for regulating the development of two neural crest derivatives: melanocytes and Schwann cells. Neural crest specific conditional deletion of Adar1 in mice leads to global depigmentation and absence of myelin from peripheral nerves, resulting from alterations in melanocyte survival and differentiation of Schwann cells, respectively. Upregulation of interferon stimulated genes precedes these defects, which are associated with the triggering of a signature resembling response to injury in peripheral nerves. Simultaneous extinction of MDA5, a key sensor of unedited RNA, rescues both melanocytes and myelin defects in vitro, suggesting that ADAR1 safeguards neural crest derivatives from aberrant MDA5-mediated interferon production. We thus extend the landscape of ADAR1 function to the fields of neural crest development and disease., ADAR1 is an RNA editing protein known to regulate immune responses to dsRNA that has been connected to neural crest cell function. Here, the authors show RNA editing by ADAR1 is important for the normal development of neural crest derived melanocytes and Schwann cells.
Published: 2020

2. Defects in t6A tRNA modification due to GON7 and YRDC mutations lead to Galloway-Mowat syndrome

Author: Arrondel, Christelle, Missoury, Sophia, Snoek, Rozemarijn, Patat, Julie, Menara, Giulia, Collinet, Bruno, Liger, Dominique, Durand, Dominique, Gribouval, Olivier, Boyer, Olivia, Buscara, Laurine, Martin, Gaëlle, Machuca, Eduardo, Nevo, Fabien, Lescop, Ewen, Braun, Daniela A., Boschat, Anne-Claire, Sanquer, Sylvia, Guerrera, Ida Chiara, Revy, Patrick, Parisot, Mélanie, Masson, Cécile, Boddaert, Nathalie, Charbit, Marina, Decramer, Stéphane, Novo, Robert, Macher, Marie-Alice, Ranchin, Bruno, Bacchetta, Justine, Laurent, Audrey, Collardeau-Frachon, Sophie, van Eerde, Albertien M., Hildebrandt, Friedhelm, Magen, Daniella, Antignac, Corinne, van Tilbeurgh, Herman, Mollet, Géraldine, Institut de Biologie Intégrative de la Cellule (I2BC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Molecular bases of hereditary kidney diseases: nephronophthisis and hypodysplasia (Equipe Inserm U1163), 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), Center for Molecular medicine [Utrecht], University Medical Center [Utrecht], Department of Genetics [Utrecht, the Netherlands], Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Service de néphrologie pédiatrique [CHU Necker], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut de Chimie des Substances Naturelles (ICSN), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Department of Medicine [Boston, MA, USA], Harvard Medical School [Boston] (HMS)-Boston Children's Hospital, Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de biochimie métabolique [CHU Necker], CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Toxicité environnementale, cibles thérapeutiques, signalisation cellulaire (T3S - UMR_S 1124), Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Plateforme Protéomique Necker [SFR Necker] (PPN - 3P5), Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Genome dynamics in the immune system (Equipe Inserm U1163), Plateforme de génomique [SFR Necker], Imagine - Institut des maladies génétiques (IHU) (Imagine - U1163), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP), Neuroimagerie en psychiatrie (U1000), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Sud - Paris 11 (UP11), Service de Pédiatrie - Néphrologie, Médecine interne, Hypertension, CHU Toulouse [Toulouse]-Hôpital des Enfants, CHU Toulouse [Toulouse], Unité Néphrologie Pédiatrique [CHRU Lille], Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Service de Néphrologie pédiatrique [Hôpital Robert Debré, Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Robert Debré, Service de néphrologie, rhumatologie et dermatologie pédiatriques [Hôpital Femme Mère Enfant, HCL], Hospices Civils de Lyon (HCL)-Hôpital Mère Enfant, Service de Pathologie [Hôpital Femme-Mère-Enfant, HCL], Hôpital Femme Mère Enfant [CHU - HCL] (HFME), Hospices Civils de Lyon (HCL)-Hospices Civils de Lyon (HCL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon, Division of Nephrology [Boston, MA, USA] (Department of Medicine), Boston Children's Hospital, Pediatric Nephrology Institute [Haifa, Israel], Rambam Health Care Campus [Haifa, Israel]-Technion Faculty of Medicine [Haifa, Israel], Service de Génétique Médicale [CHU Necker], This work was supported by the Fondation pour le Recherche Médicale (project DEQ2015031682) (to C. Antignac), the European Union’s Seventh Framework Programme (FP7/2012, grant 305608 EURenOmics) (to C. Antignac), the Investments for the Future Program (grant ANR-10-IAHY-01) (to C. Antignac), ANR KeoGamo (ANR-18-CE11-0008-01) (to G. Mollet and H.v.T.). This work was supported by the French Infrastructure for Integrated Structural Biology (FRISBI) (ANR-10-INSB-05–01) (to H.v.T.) and the Dutch Kidney Foundation (grant 15OP14) (to A.M.v.E.). S.M. is supported by a Ph.D. grant of the Fondation pour le Recherche Médicale (FRM). P.R. is a scientist from Centre National de la Recherche Scientifique (CNRS)., ANR-10-IAHU-0001,Imagine,Institut Hospitalo-Universitaire Imagine(2010), ANR-18-CE11-0008,KeoGamo,Caractérisation fonctionnelle du complexe KEOPS et son implication dans le syndrome de Galloway-Mowat(2018), ANR-10-INBS-0005,FRISBI,Infrastructure Française pour la Biologie Structurale Intégrée(2010), European Project: 305608,EC:FP7:HEALTH,FP7-HEALTH-2012-INNOVATION-1,EURENOMICS(2012), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Cité (UPCité), Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Gribouval, Olivier, Instituts Hospitalo-Universitaires - Institut Hospitalo-Universitaire Imagine - - Imagine2010 - ANR-10-IAHU-0001 - IAHU - VALID, APPEL À PROJETS GÉNÉRIQUE 2018 - Caractérisation fonctionnelle du complexe KEOPS et son implication dans le syndrome de Galloway-Mowat - - KeoGamo2018 - ANR-18-CE11-0008 - AAPG2018 - VALID, Infrastructure Française pour la Biologie Structurale Intégrée - - FRISBI2010 - ANR-10-INBS-0005 - INBS - VALID, and European Consortium for High-Throughput Research in Rare Kidney Diseases - EURENOMICS - - EC:FP7:HEALTH2012-10-01 - 2017-09-30 - 305608 - VALID
Subjects: Male, Adenosine, [SDV.BC.BC]Life Sciences [q-bio]/Cellular Biology/Subcellular Processes [q-bio.SC], [SDV.GEN] Life Sciences [q-bio]/Genetics, Nephrosis/genetics, Microcephaly/genetics, RNA, Transfer, MESH: Child, lcsh:Science, Child, MESH: Intrinsically Disordered Proteins, Research Support, Non-U.S. Gov't, Medical genetics, Nuclear Proteins, RNA-Binding Proteins, [SDV.MHEP.HEM]Life Sciences [q-bio]/Human health and pathology/Hematology, [SDV.IMM.IA]Life Sciences [q-bio]/Immunology/Adaptive immunology, MESH: Nephrosis, Microcephaly, Nephrosis, Intrinsically Disordered Proteins/genetics, Female, Multiprotein Complexes/chemistry, RNA, Transfer/genetics, RNA-Binding Proteins/chemistry, MESH: Mutation, MESH: GTP-Binding Proteins, Science, Nuclear Proteins/chemistry, MESH: Microcephaly, Article, MESH: Hernia, Hiatal, GTP-Binding Proteins, Hernia, Hiatal/genetics, GTP-Binding Proteins/chemistry, Journal Article, Humans, X-ray crystallography, [SDV.GEN]Life Sciences [q-bio]/Genetics, MESH: Humans, [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology, MESH: Multiprotein Complexes, MESH: Adenosine, MESH: RNA, Transfer, RNA modification, MESH: Male, tRNAs, Intrinsically Disordered Proteins, MESH: RNA-Binding Proteins, Hernia, Hiatal, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Multiprotein Complexes, Mutation, lcsh:Q, Adenosine/analogs & derivatives, MESH: Nuclear Proteins, MESH: Female
Abstract: N6-threonyl-carbamoylation of adenosine 37 of ANN-type tRNAs (t6A) is a universal modification essential for translational accuracy and efficiency. The t6A pathway uses two sequentially acting enzymes, YRDC and OSGEP, the latter being a subunit of the multiprotein KEOPS complex. We recently identified mutations in genes encoding four out of the five KEOPS subunits in children with Galloway-Mowat syndrome (GAMOS), a clinically heterogeneous autosomal recessive disease characterized by early-onset steroid-resistant nephrotic syndrome and microcephaly. Here we show that mutations in YRDC cause an extremely severe form of GAMOS whereas mutations in GON7, encoding the fifth KEOPS subunit, lead to a milder form of the disease. The crystal structure of the GON7/LAGE3/OSGEP subcomplex shows that the intrinsically disordered GON7 protein becomes partially structured upon binding to LAGE3. The structure and cellular characterization of GON7 suggest its involvement in the cellular stability and quaternary arrangement of the KEOPS complex., The biosynthesis of N6-threonylcarbamoylated adenosine 37 in tRNA (t6A) involves the YRDC enzyme and the KEOPS complex. Here, the authors report mutations in YRDC and the KEOPS component GON7 in Galloway-Mowat syndrome and determine the crystal structure of a GON7-containg subcomplex that suggests a role in KEOPS complex stability.
Published: 2019

3. EFL1 mutations impair eIF6 release to cause Shwachman-Diamond syndrome

Author: Dana Ranta, Jean Donadieu, Pekka Jaako, Alan J. Warren, Etienne Lengliné, Laetitia Kermasson, Christine Bellanné-Chantelot, Angela Hoslin, Alexandre Faille, Hubert Ducou Le Pointe, Patrick Revy, Abraham Acevedo-Arozena, Christine Bole-Feysot, Caroline Kannengiesser, Blandine Beaupain, Shengjiang Tan, Patrick Nitschke, Odile Fenneteau, Jean-Pierre de Villartay, Stefano Fumagalli, Maryline Poirée, Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de pharmacologie et de biologie structurale (IPBS), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, CIC - Biotherapie - GHU Ouest APHP (CIC-BT 502), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service d'Hematologie et Médecine Interne, Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Service de Pédiatrie, Unité d'Oncologie et Hématologie Pédiatrique, Centre Hospitalier Universitaire de Nice (CHU Nice), Service d'Hématologie Biologique [Hôpital Robert Debré, Paris], AP-HP Hôpital universitaire Robert-Debré [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Radiologie [CHU Trousseau], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Developpement Normal et Pathologique du Système Immunitaire, Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), CHU Saint-Antoine [AP-HP], Service d'hématologie-immunologie-oncologie pédiatrique [CHU Trousseau], 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 de recherche sur l'Inflammation (CRI (UMR_S_1149 / ERL_8252 / U1149)), Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), National History Museum of London, Acevedo-Arozena, Abraham [0000-0001-6127-7116], Bellanné-Chantelot, Christine [0000-0001-8415-6771], Warren, Alan J [0000-0001-9277-4553], Revy, Patrick [0000-0003-0758-8022], Apollo - University of Cambridge Repository, Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Trousseau [APHP], Service d'Hémato-oncologie Pédiatrique, Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), CHU Saint-Antoine [APHP], Service d’oncologie hématologie pédiatrique [CHU Trousseau], Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), and Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: Male, Models, Molecular, Ribosomopathy, Protein Conformation, DNA Mutational Analysis, [SDV.BC.BC]Life Sciences [q-bio]/Cellular Biology/Subcellular Processes [q-bio.SC], medicine.disease_cause, Biochemistry, Ribosome, Mice, 0302 clinical medicine, Peptide Initiation Factors, Large ribosomal subunit, ComputingMilieux_MISCELLANEOUS, Cells, Cultured, Genetics, 0303 health sciences, Shwachman–Diamond syndrome, Mutation, Translation (biology), [SDV.MHEP.HEM]Life Sciences [q-bio]/Human health and pathology/Hematology, Hematology, Shwachman-Diamond Syndrome, 3. Good health, Pedigree, Phenotype, [SDV.IMM.IA]Life Sciences [q-bio]/Immunology/Adaptive immunology, EIF6, 030220 oncology & carcinogenesis, Female, Disease Susceptibility, congenital, hereditary, and neonatal diseases and abnormalities, Adolescent, Immunology, Mice, Transgenic, Biology, 03 medical and health sciences, Structure-Activity Relationship, Red Cells, Iron, and Erythropoiesis, medicine, Animals, Humans, Ribonucleoprotein, U5 Small Nuclear, 030304 developmental biology, Whole Genome Sequencing, Infant, [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology, Cell Biology, medicine.disease, Peptide Elongation Factors, Disease Models, Animal, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Ribosome Subunits, Genome-Wide Association Study
Abstract: Shwachman-Diamond syndrome (SDS) is a recessive disorder typified by bone marrow failure and predisposition to hematological malignancies. SDS is predominantly caused by deficiency of the allosteric regulator Shwachman-Bodian-Diamond syndrome that cooperates with elongation factor-like GTPase 1 (EFL1) to catalyze release of the ribosome antiassociation factor eIF6 and activate translation. Here, we report biallelic mutations in EFL1 in 3 unrelated individuals with clinical features of SDS. Cellular defects in these individuals include impaired ribosomal subunit joining and attenuated global protein translation as a consequence of defective eIF6 eviction. In mice, Efl1 deficiency recapitulates key aspects of the SDS phenotype. By identifying biallelic EFL1 mutations in SDS, we define this leukemia predisposition disorder as a ribosomopathy that is caused by corruption of a fundamental, conserved mechanism, which licenses entry of the large ribosomal subunit into translation.
Published: 2019

4. Novel de novo ZBTB20 mutations in three cases with Primrose syndrome and constant corpus callosum anomalies

Author: Maryse Bonnière, Férechté Encha-Razavi, Yves Ville, Lucile Boutaud, Laurence Colleaux, Charlotte Mechler, Patrick Nitschke, Valérie Cormier-Daire, Bettina Bessières, Judith de Oliveira, Philippe Roth, Linda Mouthon, Tania Attié-Bitach, Christine Bole, Nadia Bahi-Buisson, Nathalie Boddaert, Valérie Serre, Caroline Alby, Stanislas Lyonnet, Marlène Rio, Amale Ichkou, Sophie Thomas, Michel Vekemans, Christopher T. Gordon, 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), Université Sorbonne Paris Cité (USPC), Service de Génétique Médicale [CHU Necker], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHU Necker - Enfants Malades [AP-HP], Institut Jacques Monod (IJM (UMR_7592)), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Génétique et épigénétique des maladies métaboliques, neurosensorielles et du développement (Inserm U781), Plate Forme Paris Descartes de Bioinformatique (BIP-D), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Service de neurologie pédiatrique [CHU Necker], Service de radiologie pédiatrique [CHU Necker], Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Necker - Enfants Malades [AP-HP], Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), and CHU Necker - Enfants Malades [AP-HP]-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)
Subjects: 0301 basic medicine, Male, Candidate gene, Adolescent, Protein Conformation, Nerve Tissue Proteins, Biology, Corpus callosum, 03 medical and health sciences, 0302 clinical medicine, Brain commissure, Intellectual Disability, Genetics, medicine, Humans, Abnormalities, Multiple, Megalencephaly, Amino Acid Sequence, Child, Ear Diseases, Genetics (clinical), Exome sequencing, Zinc finger, Macrocephaly, Infant, Newborn, Brain, Calcinosis, High-Throughput Nucleotide Sequencing, Reproducibility of Results, Sequence Analysis, DNA, medicine.disease, Primrose syndrome, 3. Good health, Pedigree, Muscular Atrophy, 030104 developmental biology, Phenotype, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Mutation, Nucleic Acid Conformation, Female, medicine.symptom, Agenesis of Corpus Callosum, 030217 neurology & neurosurgery, Transcription Factors
Abstract: International audience; Corpus callosum (CC) is the major brain commissure connecting homologous areas of cerebral hemispheres. CC anomalies (CCAs) are the most frequent brain anomalies leading to variable neurodevelopmental outcomes making genetic counseling difficult in the absence of a known etiology that might inform the prognosis. Here, we used whole exome sequencing, and a targeted capture panel of syndromic CCA known causal and candidate genes to screen a cohort of 64 fetuses with CCA observed upon autopsy, and 34 children with CCA and intellectual disability. In one fetus and two patients, we identified three novel de novo mutations in ZBTB20, which was previously shown to be causal in Primrose syndrome. In addition to CCA, all cases presented with additional features of Primrose syndrome including facial dysmorphism and macrocephaly or megalencephaly. All three variations occurred within two out of the five zinc finger domains of the transcriptional repressor ZBTB20. Through homology modeling, these variants are predicted to result in local destabilization of each zinc finger domain suggesting subsequent abnormal repression of ZBTB20 target genes. Neurohistopathological analysis of the fetal case showed abnormal regionalization of the hippocampal formation as well as a reduced density of cortical upper layers where originate most callosal projections. Here, we report novel de novo ZBTB20 mutations in three independent cases with characteristic features of Primrose syndrome including constant CCA. Neurohistopathological findings in fetal case corroborate the observed key role of ZBTB20 during hippocampal and neocortical development. Finally, this study highlights the crucial role of ZBTB20 in CC development in human.
Published: 2018

5. Microdeletion on chromosome 8p23.1 in a familial form of severe Buruli ulcer

Author: Quentin B, Vincent, Aziz, Belkadi, Cindy, Fayard, Estelle, Marion, Ambroise, Adeye, Marie-Françoise, Ardant, Christian R, Johnson, Didier, Agossadou, Lazaro, Lorenzo, Julien, Guergnon, Christine, Bole-Feysot, Jeremy, Manry, Patrick, Nitschké, Ioannis, Theodorou, Jean-Laurent, Casanova, Laurent, Marsollier, Annick, Chauty, Laurent, Abel, Alexandre, Alcaïs, Laboratory of Human Genetics of Infectious Diseases (Necker Branch - INSERM U1163), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Département de Radiologie [AP-HP Hôpital Bicêtre], AP-HP Hôpital Bicêtre (Le Kremlin-Bicêtre), Centre de Recherche en Cancérologie Nantes-Angers (CRCNA), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM)-Hôtel-Dieu de Nantes-Institut National de la Santé et de la Recherche Médicale (INSERM)-Hôpital Laennec-Centre National de la Recherche Scientifique (CNRS)-Faculté de Médecine d'Angers-Centre hospitalier universitaire de Nantes (CHU Nantes), Centre de Dépistage et de Traitement de la Lèpre et de l’Ulcère de Buruli [Pobe, Benin] (CDTLUB), Fondation Raoul Follereau [Pobe, Benin], Fondation Raoul Follereau [Paris], Centre Interfacultaire de Formation et de Recherche en Environnement pour le Développement Durable [Cotonou, Benin], University of Abomey Calavi (UAC), Leprosy and Buruli Ulcer national control program [Cotonou, Benin], Beninese Ministry of Health [Benin], Immunité et Infection, Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR113-Sorbonne Université (SU), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Bioinformatics Core Facility (INSERM U1163), Sorbonne Paris Cité-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Center for Immunology and Infectious Diseases (INSERM U1163), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service d'Immunologie [CHU Pitié-Salpétrière], 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), St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller University [New York], Howard Hughes Medical Institute [New York], Service d'immuno-hématologie pédiatrique [CHU Necker], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), ATOMycA (CRCINA-ÉQUIPE 6), 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), We acknowledge support from the Fondation Raoul Follereau. QBV acknowledges support from the ‘Fondation Bettencourt Schueller’ through the MD/PhD program of the Imagine Institute. LM and AAl acknowledge support from the Agence Nationale de la Recherche (ANR, grant no. ANR-17-BSV3-0013-01). JM, LA and AAlacknowledge support from the Laboratoired’Excellence Integrative Biology of Emerging Infectious Diseases (grant no. ANR-10-LABX-62-IBEID) and the ANR under the 'Investments for the Future' program (grant no. ANR-10-IAHU-01). AAl acknowledges support from the Fondation pour la Recherche Médicale (grant no. DMI20091117308). JLC acknowledges support from St. Giles Foundation and The Rockefeller University. AAl, AB, LL and LM acknowledge support from INSERM and Paris Descartes University., Membership of the Franco-Beninese Buruli Research Group, ANR-10-LABX-0062,IBEID,Integrative Biology of Emerging Infectious Diseases(2010), ANR-10-IAHU-0001,Imagine,Institut Hospitalo-Universitaire Imagine(2010), Laboratory of Human Genetics of Infectious Diseases ( Necker Branch - INSERM U1163 ), Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Hôpital Necker-Enfants Malades, Assistance Publique - Hôpitaux de Paris ( AP-HP ), Imagine Institute [Paris], Sorbonne Paris Cité-Université Paris Descartes - Paris 5 ( UPD5 ), Centre de Recherche en Cancérologie / Nantes - Angers ( CRCNA ), CHU Angers-Centre hospitalier universitaire de Nantes ( CHU Nantes ) -Hôtel-Dieu de Nantes-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Hôpital Laennec-Centre National de la Recherche Scientifique ( CNRS ) -Faculté de Médecine d'Angers, Centre de Dépistage et de Traitement de la Lèpre et de l’Ulcère de Buruli [Pobe, Benin] ( CDTLUB ), Université d’Abomey-Calavi [Cotonou, Benin], Université Pierre et Marie Curie - Paris 6 ( UPMC ) -IFR113-Institut National de la Santé et de la Recherche Médicale ( INSERM ), Genomic Core Facility ( INSERM U1163 ), Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Sorbonne Paris Cité-Imagine Institute [Paris], Bioinformatics Core Facility ( INSERM U1163 ), Sorbonne Paris Cité-Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Imagine Institute [Paris], Center for Immunology and Infectious Diseases ( INSERM U1163 ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Service d'immunologie [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Pitié-Salpêtrière [APHP], St. Giles Laboratory of Human Genetics of Infectious Diseases [New York, USA] ( Rockefeller Branch ), rockefeller university, The Rockefeller University, Unité d’immunologie, d’hématologie et de rhumatologie pédiatriques [Hôpital Necker], CHU Necker - Enfants Malades [AP-HP], ATIP AVENIR / ATOMycA ( CRCINA - Département INCIT - Equipe 6 ), Centre de recherche de Cancérologie et d'Immunologie / Nantes - Angers ( CRCINA ), Université d'Angers ( UA ) -Université de Nantes ( UN ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut de Recherche en Santé de l'Université de Nantes ( IRS-UN ) -Centre hospitalier universitaire de Nantes ( CHU Nantes ) -Université d'Angers ( UA ) -Université de Nantes ( UN ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut de Recherche en Santé de l'Université de Nantes ( IRS-UN ) -Centre hospitalier universitaire de Nantes ( CHU Nantes ), ANR-10-LABX-62-IBEID,IBEID,Laboratoire d'Excellence 'Integrative Biology of Emerging Infectious Diseases' ( 2010 ), ANR-10-IAHU-0001/10-IAHU-0001,Imagine,Imagine ( 2010 ), Bernardo, Elizabeth, Integrative Biology of Emerging Infectious Diseases - - IBEID2010 - ANR-10-LABX-0062 - LABX - VALID, Instituts Hospitalo-Universitaires - Institut Hospitalo-Universitaire Imagine - - Imagine2010 - ANR-10-IAHU-0001 - IAHU - VALID, Université d’Abomey-Calavi = University of Abomey Calavi (UAC), IFR113-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), and Université d'Angers (UA)-Université de Nantes (UN)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre hospitalier universitaire de Nantes (CHU Nantes)-Université d'Angers (UA)-Université de Nantes (UN)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre hospitalier universitaire de Nantes (CHU Nantes)
Subjects: Male, Bacterial Diseases, Genetic Linkage, Pathology and Laboratory Medicine, Biochemistry, [ SDV.CAN ] Life Sciences [q-bio]/Cancer, Geographical Locations, Consanguinity, Database and Informatics Methods, Medicine and Health Sciences, Benin, Edema, Buruli Ulcer, Sequence Deletion, Pedigree, Actinobacteria, Nucleic acids, Phenotype, Infectious Diseases, Child, Preschool, Female, Sequence Analysis, Chromosomes, Human, Pair 8, Research Article, Neglected Tropical Diseases, Adolescent, Genotype, Bioinformatics, [SDV.CAN]Life Sciences [q-bio]/Cancer, Research and Analysis Methods, Signs and Symptoms, [SDV.CAN] Life Sciences [q-bio]/Cancer, Diagnostic Medicine, Exome Sequencing, Genetics, Humans, Non-coding RNA, Mycobacterium ulcerans, Bacteria, Organisms, Biology and Life Sciences, Human Genetics, Tropical Diseases, People and Places, Africa, Lesions, Long non-coding RNAs, RNA, Sequence Alignment, Genome-Wide Association Study
Abstract: Buruli ulcer (BU), the third most frequent mycobacteriosis worldwide, is a neglected tropical disease caused by Mycobacterium ulcerans. We report the clinical description and extensive genetic analysis of a consanguineous family from Benin comprising two cases of unusually severe non-ulcerative BU. The index case was the most severe of over 2,000 BU cases treated at the Centre de Dépistage et de Traitement de la Lèpre et de l’Ulcère de Buruli, Pobe, Benin, since its opening in 2003. The infection spread to all limbs with PCR-confirmed skin, bone and joint infections. Genome-wide linkage analysis of seven family members was performed and whole-exome sequencing of both patients was obtained. A 37 kilobases homozygous deletion confirmed by targeted resequencing and located within a linkage region on chromosome 8 was identified in both patients but was absent from unaffected siblings. We further assessed the presence of this deletion on genotyping data from 803 independent local individuals (402 BU cases and 401 BU-free controls). Two BU cases were predicted to be homozygous carriers while none was identified in the control group. The deleted region is located close to a cluster of beta-defensin coding genes and contains a long non-coding (linc) RNA gene previously shown to display highest expression values in the skin. This first report of a microdeletion co-segregating with severe BU in a large family supports the view of a key role of human genetics in the natural history of the disease., Author summary Buruli ulcer (BU) is a tropical infectious disease caused by Mycobacterium ulcerans. Although being the third most common mycobacterial disease in the world after tuberculosis and leprosy, BU remains a neglected tropical disease and an emerging health emergency in several developing countries. It causes profound skin ulcerations and eventually bone infections. Life-long functional sequelae are observed in more than 20% of patients, most of whom are children. Several observations, in particular the large variability in the clinical severity of the disease after infection, suggested the role of human genetic factors in the development of BU. We report the case of a 5-year old girl from Benin, born of consanguineous parents, who suffered from extensive dissemination of the mycobacterium in the skin, bones and joints. One of her siblings was also affected. The deep genetic exploration of this family led to the identification of a small deletion on chromosome 8 in both patients but absent from unaffected siblings. Interestingly, the deletion is located within a region containing genes encoding for beta-defensins, a family of antimicrobial peptides involved in both innate immunity and healing process of skin wounds. This first report of a microdeletion associated with severe BU in a large family supports the view of a key role of human genetics in the natural history of the disease.
Published: 2018

6. Recessive loss of function PIGN alleles, including an intragenic deletion with founder effect in La Réunion Island, in patients with Fryns syndrome

Author: Asma Chebil, Duksha Ramful, Thibaud Jouan, Hanitra Randrianaivo, Norbert F. Ajeawung, Nicolas Gruchy, Yannis Duffourd, Bérénice Doray, Christopher T. Gordon, Francesca Filippini, Christine Bole-Feysot, Philippe M. Campeau, Asma Omarjee, Julien Thevenon, Paul Kuentz, Jean-Luc Alessandri, Patrick Nitschke, Laurence Faivre, Jeanne Amiel, Coralie Dumont, Thi Tuyet Mai Nguyen, Marion Gérard, Myriam Oufadem, Guillaume Benoist, Olivier Alibeu, Marie-Line Jacquemont, Centre Hospitalier Universitaire de La Réunion (CHU La Réunion), Imagine - Institut des maladies génétiques (IMAGINE - U1163), Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Sud Saint Pierre [Ile de la Réunion], Service de Génétique [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), Centre de recherche du CHU Sainte-Justine, CHU Sainte Justine [Montréal], Centre Hospitalier de Mayotte, Equipe GAD (LNC - U1231), 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-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, 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, FHU TRANSLAD, Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Laboratoire de Génétique Médicale (LGM), Université de Strasbourg (UNISTRA)-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), Centre de recherche du CHU Sainte-Justine [Montreal], Université de Montréal (UdeM)-CHU Sainte Justine [Montréal], Service de réanimation néonatologique et pédiatrique [La Réunion], Groupe Hospitalier Sud-CHR La réunion, Embryology and genetics of human malformation (Equipe Inserm 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), 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), CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Université de Caen Normandie (UNICAEN), Normandie Université (NU), Biologie, génétique et thérapies ostéoarticulaires et respiratoires (BIOTARGEN), Normandie Université (NU)-Normandie Université (NU), Pôle Gynécologie Obstétrique [CHM, Mayotte], Centre de génétique - Centre de référence des maladies rares, anomalies du développement et syndromes malformatifs (CHU de Dijon), Hôpital d'Enfants [CHU Dijon], Hôpital du Bocage, Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon)-Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Pôle Femme-Mère-Enfant [CHU La Réunion, Saint-Pierre, La Réunion], Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Plate Forme Paris Descartes de Bioinformatique (BIP-D), Université Paris Descartes - Paris 5 (UPD5), CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Biologie moléculaire et cellulaire de la différenciation, Université Joseph Fourier - Grenoble 1 (UJF)-Institut Albert Bonniot-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Universitaire de La Réunion ( CHU La Réunion ), Imagine - Institut des maladies génétiques ( IMAGINE - U1163 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université Paris Descartes - Paris 5 ( UPD5 ), Service de Génétique Clinique [Caen], Université de Caen Normandie ( UNICAEN ), Normandie Université ( NU ) -Normandie Université ( NU ) -CHU Caen, Lipides - Nutrition - Cancer [Dijon - U1231] ( LNC ), 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 ) -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 ), 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 ), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand ( CHU Dijon ), Laboratoire de Génétique Médicale ( LGM ), Université de Strasbourg ( UNISTRA ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Service de Réanimation Néonatale et Pédiatrique, CHD Félix Guyon, Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology in Zürich [Zürich] (ETH Zürich), Université de Lausanne (UNIL), Laboratoire de Chimie Physique Macromoléculaire (LCPM), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Equipe NuTox (LNC - U1231) (NUTOX), Service de Médecine Néonatale [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Université de Maurice, Service de médecine foetale et foetopathologie, Service de Génétique, Hôpital de Hautepierre [Strasbourg], Department of Experimental Cardiology, Academic Medical Center - Academisch Medisch Centrum [Amsterdam] (AMC), and University of Amsterdam [Amsterdam] (UvA)-University of Amsterdam [Amsterdam] (UvA)-Heart Failure Research Center (HFRC)
Subjects: 0301 basic medicine, Male, MESH: Limb Deformities, Congenital, Limb Deformities, Congenital, MESH: Phosphotransferases, [SDV.CAN]Life Sciences [q-bio]/Cancer, 030105 genetics & heredity, Biology, MESH: Founder Effect, Article, 03 medical and health sciences, Pulmonary hypoplasia, 0302 clinical medicine, Fryns syndrome, Loss of Function Mutation, Genetics, medicine, Missense mutation, Humans, Allele, [ SDV.GEN.GH ] Life Sciences [q-bio]/Genetics/Human genetics, Genetics (clinical), Loss function, Hernia, Diaphragmatic, [SDV.GEN]Life Sciences [q-bio]/Genetics, MESH: Humans, Phosphotransferases, MESH: Infant, Newborn, Infant, Newborn, Congenital diaphragmatic hernia, Facies, Infant, MESH: Loss of Function Mutation, medicine.disease, MESH: Infant, Hypoplasia, Founder Effect, MESH: Male, MESH: Hernia, Diaphragmatic, MESH: Facies, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, MESH: Gene Deletion, Female, MESH: Female, 030217 neurology & neurosurgery, Gene Deletion, Founder effect
Abstract: International audience; Fryns syndrome (FS) is a multiple malformations syndrome with major features of congenital diaphragmatic hernia, pulmonary hypoplasia, craniofacial dysmorphic features, distal digit hypoplasia, and a range of other lower frequency malformations. FS is typically lethal in the fetal or neonatal period. Inheritance is presumed autosomal recessive. Although no major genetic cause has been identified for FS, biallelic truncating variants in PIGN, encoding a component of the glycosylphosphatidylinositol (GPI)-anchor biosynthesis pathway, have been identified in a limited number of cases with a phenotype compatible with FS. Biallelic variants in PIGN, typically missense or compound missense with truncating, also cause multiple congenital anomalies-hypotonia-seizures syndrome 1 (MCAHS1). Here we report six further patients with FS with or without congenital diaphragmatic hernia and recessive loss of function PIGN alleles, including an intragenic deletion with a likely founder effect in La Réunion and other Indian Ocean islands. Our results support the hypothesis that a spectrum of phenotypic severity is associated with recessive PIGN variants, ranging from FS at the extreme end, caused by complete loss of function, to MCAHS1, in which some residual PIGN function may remain. Our data add FS resulting from PIGN variants to the catalog of inherited GPI deficiencies caused by the disruption of the GPI-anchor biosynthesis pathway.
Published: 2018

7. Genetics and mechanisms leading to human cortical malformations

Author: Delfina M. Romero, Nadia Bahi-Buisson, Fiona Francis, Institut du Fer à Moulin, Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker ( SFR Necker - UMS 3633 / US24 ), Centre National de la Recherche Scientifique ( CNRS ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Assistance publique - Hôpitaux de Paris (AP-HP)-Centre National de la Recherche Scientifique ( CNRS ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Assistance publique - Hôpitaux de Paris (AP-HP), HAL-UPMC, Gestionnaire, Institut du Fer à Moulin (IFM - Inserm U1270 - SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Institut National de la Santé et de la Recherche Médicale (INSERM), Sorbonne Université (SU), Cortex development and pathology (U1270), Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-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 Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM), and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 0301 basic medicine, Microcephaly, heterotopia, Lissencephaly, Biology, Neuronal migration, 03 medical and health sciences, [SDV.BDD] Life Sciences [q-bio]/Development Biology, medicine, Polymicrogyria, Humans, microcephaly, polymicrogyria, [ SDV.BDD ] Life Sciences [q-bio]/Development Biology, 10. No inequality, [SDV.BDD]Life Sciences [q-bio]/Development Biology, Exome sequencing, atypical rare mutations, Progenitor, Genetics, Neocortex, Type II lissencephaly, Cell Biology, Tubulinopathies, medicine.disease, cortical malformations, 030104 developmental biology, Heterotopia (medicine), medicine.anatomical_structure, Malformations of Cortical Development, Group I, human in vitro cultures, ZikaV, exome sequencing, Developmental Biology, lissencephaly
Abstract: International audience; Cerebral cortical development involves a complex series of highly regulated steps to generate the laminated structure of the adult neocortex. Neuronal migration is a key part of this process. We provide here a detailed review of cortical malformations thought to be linked to abnormal neuronal migration. We have focused on providing updated views related to perturbed mechanisms based on the wealth of genetic information currently available, as well as the study of mutant genes in animal models. We discuss mainly type 1 lissencephaly, periventricular heterotopia, type II lissencephaly and polymicrogyria. We also discuss functional classifications such as the tubulinopathies, and emphasize how modern genetics is revealing genes mutated in atypical cases, as well as unexpected genes for classical cases. A role in neuronal migration is revealed for many mutant genes, although progenitor abnormalities also predominate, depending on the disorder. We finish by describing the advantages of human in vitro cell culture models, to examine human-specific cells and transcripts, and further mention non-genetic mechanisms leading to cortical malformations.
Published: 2017

8. Identification of XylT1 mutations in Desbusquois dysplasia type 2 and functional consequences on proteoglycan synthesis

Author: Bui, Catherine, Hubert, Céline, Alanay, Yasemin, Tuysuz, Beyhan, Bole-Feysot, Christine, Leroy, Jules, Mortier, Geert, Nitschke, Patrick, Fournel-Gigleux, Sylvie, CORMIER-DAIRE, Valerie, Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL), Department of Pediatrics, Hacettepe University = Hacettepe Üniversitesi, Pediatrics, Istanbul University Cerrahpasa, Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Greenwood Genetic Center, Department of Medical Genetics, Antwerp University Hospital [Edegem] (UZA), Génétique et épigénétique des maladies métaboliques, neurosensorielles et du développement (Inserm U781), 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 de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)
Subjects: [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, [SDV.BC.BC]Life Sciences [q-bio]/Cellular Biology/Subcellular Processes [q-bio.SC], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2017

9. Chondrodysplasia with multiple dislocations: comprehensive study of a series of 30 cases

Author: Ranza, E., Huber, C., Levin, N., Baujat, G., Bole-Feysot, C., Nitschke, P., Masson, C., Alanay, Y., Al-Gazali, L., Bitoun, P., Boute, O., Campeau, P., Coubes, C., McEntagart, M., Elcioglu, N., Faivre, Laurence, Gezdirici, A., Johnson, D., Mihci, E., Nur, B., Perrin, L., Quelin, C., Terhal, P., Tuysuz, B., Cormier-Daire, V., Imagine - Institut des maladies génétiques ( IMAGINE - U1163 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université Paris Descartes - Paris 5 ( UPD5 ), Hôpital Universitaire de Genève, Plateforme de génomique [Necker], Structure Fédérative de Recherche Necker ( SFR Necker - UMS 3633 / US24 ), Assistance publique - Hôpitaux de Paris (AP-HP)-Université Paris Descartes - Paris 5 ( UPD5 ) -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)-Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Plate Forme Paris Descartes de Bioinformatique ( BIP-D ), Université Paris Descartes - Paris 5 ( UPD5 ), Department of Pediatrics, Istanbul Faculty of Medicine, Department of Pediatrics, Faculty of Medicine and Health Sciences, UAE University, Service de Pédiatrie [Jean Verdier], Assistance publique - Hôpitaux de Paris (AP-HP)-Université Paris 13 ( UP13 ) -Hôpital Jean Verdier, Service de Génétique clinique, Hôpital Jeanne de Flandre [Lille]-Centre Hospitalier Régional Universitaire [Lille] ( CHRU Lille ), Département de Pédiatrie [CHU Sainte -Justine Montréal], Université de Montréal-CHU Sainte Justine [Montréal], Service de Génétique Clinique, Centre Hospitalier Régional Universitaire [Montpellier] ( CHRU Montpellier ), Head of the Department of Medical Genetics, Department of Pediatric Genetics, Marmara University Medical Faculty, Equipe GAD (LNC - U1231), Lipides - Nutrition - Cancer [Dijon - U1231] ( LNC ), 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 ) -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 ), Centre de génétique - Centre de référence des maladies rares, anomalies du développement et syndromes malformatifs (CHU de Dijon), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand ( CHU Dijon ), Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Service de génétique clinique [Debré], Assistance publique - Hôpitaux de Paris (AP-HP)-Hôpital Robert Debré, CHU Pontchaillou [Rennes], Wilhelmina Childrens Hosp, Pediatrics, Istanbul University Cerrahpasa, Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Plate Forme Paris Descartes de Bioinformatique (BIP-D), Université Paris Descartes - Paris 5 (UPD5), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris 13 (UP13)-Hôpital Jean Verdier [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Hôpital Jeanne de Flandre [Lille]-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), CHU Sainte Justine [Montréal], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), 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-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 Dijon - Hôpital François Mitterrand (CHU Dijon), Sheffield Children's NHS Foundation Trust, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Robert Debré, Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Centre National de la Recherche Scientifique ( CNRS ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Assistance publique - Hôpitaux de Paris (AP-HP)-Centre National de la Recherche Scientifique ( CNRS ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Assistance publique - Hôpitaux de Paris (AP-HP), Centre National de la Recherche Scientifique (CNRS)-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 Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Université Paris 13 (UP13)-Hôpital Jean Verdier [Bondy], Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), and Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Hôpital Robert Debré
Subjects: Adult, Male, Spondyloepimetaphyseal Dysplasia, Adolescent, Joint Dislocations, Osteochondrodysplasias, Gene, Catel-Manzke Syndrome, Intellectual Disability, Exome Sequencing, Proteoglycan Synthesis, Humans, Child, [ SDV.GEN.GH ] Life Sciences [q-bio]/Genetics/Human genetics, Genetic Association Studies, Larsen-Syndrome, Targeted Ngs, Joint Laxity, Infant, Newborn, Infant, Phenotypic Spectrum, Musculoskeletal Abnormalities, Radiography, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Child, Preschool, Chondrodysplasia, Genotype-Phenotype Correlation, Deficiency, Female, Proteoglycans, Desbuquois Dysplasia, Mutations
Abstract: IF 3.326; International audience; The group of chondrodysplasia with multiple dislocations includes several entities, characterized by short stature, dislocation of large joints, hand and/or vertebral anomalies. Other features, such as epiphyseal or metaphyseal changes, cleft palate, intellectual disability are also often part of the phenotype. In addition, several conditions with overlapping features are related to this group and broaden the spectrum. The majority of these disorders have been linked to pathogenic variants in genes encoding proteins implicated in the synthesis or sulfation of proteoglycans (PG). In a series of 30 patients with multiple dislocations, we have performed exome sequencing and subsequent targeted analysis of 15 genes, implicated in chondrodysplasia with multiple dislocations, and related conditions. We have identified causative pathogenic variants in 60% of patients (18/30); when a clinical diagnosis was suspected, this was molecularly confirmed in 53% of cases. Forty percent of patients remain without molecular etiology. Pathogenic variants in genes implicated in PG synthesis are of major importance in chondrodysplasia with multiple dislocations and related conditions. The combination of hand features, growth failure severity, radiological aspects of long bones and of vertebrae allowed discrimination among the different conditions. We propose key diagnostic clues to the clinician.
Published: 2017

10. Inherited GINS1 deficiency underlies growth retardation along with neutropenia and NK cell deficiency

Author: Cottineau, Julien, Kottemann, Molly C., Lach, Francis P., Kang, Young-Hoon, Vely, Frederic, Deenick, Elissa K., Lazarov, Tomi, Gineau, Laure, Wang, Yi, Farina, Andrea, Chansel, Marie, Lorenzo, Lazaro, Piperoglou, Christelle, Ma, Cindy S., Nitschke, Patrick, Belkadi, Aziz, Itan, Yuval, Boisson, Bertrand, Jabot-Hanin, Fabienne, Picard, Capucine, Bustamante, Jacinta, Eidenschenk, Celine, Boucherit, Soraya, Aladjidi, Nathalie, Lacombe, Didier, Barat, Pascal, Qasim, Waseem, Hurst, Jane A., Pollard, Andrew J., Uhlig, Holm H., Fieschi, Claire, Michon, Jean, Bermudez, Vladimir P., Abel, Laurent, Villartay, Jean-Pierre, Geissmann, Frederic, Tangye, Stuart G., Hurwitz, Jerard, Vivier, Eric, Casanova, Jean-Laurent, Smogorzewska, Agata, Jouanguy, Emmanuelle, CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université Paris Descartes - Paris 5 (UPD5), Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service d'Immunologie [AP-HM], Hôpital de la Conception [CHU - APHM] (LA CONCEPTION), Centre d'Immunologie de Marseille - Luminy (CIML), Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Johns Hopkins University (JHU), CNR Istituto di Fotonica e Nanotecnologie [Milano] (IFN), Consiglio Nazionale delle Ricerche [Roma] (CNR), Laboratoire d'Immunologie [Hôpital de la Conception - APHM], Assistance Publique - Hôpitaux de Marseille (APHM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Hôpital de la Conception [CHU - APHM] (LA CONCEPTION)-Centre National de la Recherche Scientifique (CNRS), Immunology Program, Garvan Institute of medical research, St. Vincent’s Clinical School, Faculty of Medicine, University of New South Wales [Sydney] (UNSW), St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller University [New York], Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Service d'Hémato-oncologie Pédiatrique, CHU Bordeaux [Bordeaux]-Hôpital Pellegrin, CIC - Bordeaux, Université Bordeaux Segalen - Bordeaux 2-CHU Bordeaux [Bordeaux]-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de génétique médicale, Université de Bordeaux (UB)-CHU Bordeaux [Bordeaux]-Groupe hospitalier Pellegrin, UMR1286 Nutrition et Biologie Intégrative, Institut National de la Recherche Agronomique (INRA), Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CHU Bordeaux [Bordeaux], Université de Bordeaux (UB), Centre d’Investigation Clinique de Bordeaux (CIC 1401), Great Ormond Street Hospital for Children [London] (GOSH), Univ Oxford, NIHR Oxford Biomed Res Ctr, Childrens Hosp, Dept Paediat, Service d'immunologie clinique, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Diderot - Paris 7 (UPD7)-Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Société française de lutte contre les cancers et les leucémies de l’enfant et de l’adolescent (SFCE), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Memorial Sloane Kettering Cancer Center [New York], Howard Hughes Medical Institute (HHMI), The rockefeller university - LABORATORY OF GENOME MAINTENANCE, ANR-10-IAHU-0001,Imagine,Institut Hospitalo-Universitaire Imagine(2010), ANR-15-CE15-0013,NKD,Dissection moléculaire des déficits des cellules natural killer chez l'homme(2015), European Project: 20100317,THINK, National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Nutrition et Neurobiologie intégrée (NutriNeuro), Université Bordeaux Segalen - Bordeaux 2-Institut National de la Recherche Agronomique (INRA)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut Polytechnique de Bordeaux-Ecole nationale supérieure de chimie, biologie et physique, Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Hôpital de la Conception [CHU - APHM] (LA CONCEPTION ), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Assistance Publique - Hôpitaux de Marseille (APHM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Hôpital de la Conception [CHU - APHM] (LA CONCEPTION )-Centre National de la Recherche Scientifique (CNRS), The Rockefeller University, Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Université Paris Descartes - Paris 5 (UPD5)-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) (APHP)-Université Paris Descartes - Paris 5 (UPD5)-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) (APHP)-Université Paris Diderot - Paris 7 (UPD7)-Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Hôpital Trousseau - Service d׳Anatomie et Cytologie Pathologiques, Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), St Giles laboratory of Human Genetics and Infectious Diseases, rockefeller university, Howard Hughes Medical Institute, Albert Einstein College of Medicine, ANR-10-IAHU-0001/10-IAHU-0001,Imagine,Imagine(2010), Centre National de la Recherche Scientifique (CNRS)-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 Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), and Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Male, Fetal Growth Retardation, Neutropenia, Genetic Diseases, Inborn, Immunologic Deficiency Syndromes, Infant, DNA-Binding Proteins, Killer Cells, Natural, Mice, Animals, Humans, [SDV.IMM]Life Sciences [q-bio]/Immunology, Female, NK cell deficiency, Growth Disorders, Research Article
Abstract: International audience; Inborn errors of DNA repair or replication underlie a variety of clinical phenotypes. We studied 5 patients from 4 kindreds, all of whom displayed intrauterine growth retardation, chronic neutropenia, and NK cell deficiency. Four of the 5 patients also had postnatal growth retardation. The association of neutropenia and NK cell deficiency, which is unusual among primary immunodeficiencies and bone marrow failures, was due to a blockade in the bone marrow and was mildly symptomatic. We discovered compound heterozygous rare mutations in Go-Ichi-Ni-San (GINS) complex subunit 1 (GINS1, also known as PSF1) in the 5 patients. The GINS complex is essential for eukaryotic DNA replication, and homozygous null mutations of GINS component-encoding genes are embryonic lethal in mice. The patients' fibroblasts displayed impaired GINS complex assembly, basal replication stress, impaired checkpoint signaling, defective cell cycle control, and genomic instability, which was rescued by WT GINS1. The residual levels of GINS1 activity reached 3% to 16% in patients' cells, depending on their GINS1 genotype, and correlated with the severity of growth retardation and the in vitro cellular phenotype. The levels of GINS1 activity did not influence the immunological phenotype, which was uniform. Autosomal recessive, partial GINS1 deficiency impairs DNA replication and underlies intra-uterine (and postnatal) growth retardation, chronic neutropenia, and NK cell deficiency.
Published: 2017

11. CD21 deficiency in two siblings with recurrent respiratory infections and hypogammaglobulinemia

Author: Rosain, Jeremie, Miot, Charline, Lambert, Nathalie, Rousselet, Marie-Christine, Pellier, Isabelle, Picard, Capucine, Picard, Capucine, CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre de Recherche en Cancérologie Nantes-Angers (CRCNA), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM)-Hôtel-Dieu de Nantes-Institut National de la Santé et de la Recherche Médicale (INSERM)-Hôpital Laennec-Centre National de la Recherche Scientifique (CNRS)-Faculté de Médecine d'Angers-Centre hospitalier universitaire de Nantes (CHU Nantes), Unité d'Immuno-Hémato-Oncologie Pédiatrique [Angers], PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), Département de Pathologie Cellulaire et Tissulaire [Angers], Université d'Angers (UA)-Centre Hospitalier Universitaire d'Angers (CHU Angers), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), no source, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche en Cancérologie / Nantes - Angers ( CRCNA ), CHU Angers-Hôtel-Dieu de Nantes-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Hôpital Laennec-Centre National de la Recherche Scientifique ( CNRS ) -Faculté de Médecine d'Angers-Centre hospitalier universitaire de Nantes ( CHU Nantes ), Centre Hospitalier Universitaire d'Angers, Université d'Angers ( UA ) -CHU Angers, Structure Fédérative de Recherche Necker ( SFR Necker - UMS 3633 / US24 ), and Centre National de la Recherche Scientifique ( CNRS ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Assistance publique - Hôpitaux de Paris (AP-HP)-Centre National de la Recherche Scientifique ( CNRS ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Assistance publique - Hôpitaux de Paris (AP-HP)
Subjects: respirat ory infections, [SDV.IMM] Life Sciences [q-bio]/Immunology, [ SDV.IMM ] Life Sciences [q-bio]/Immunology, CD21, [SDV.IMM]Life Sciences [q-bio]/Immunology, Primary antibody deficiency, ComputingMilieux_MISCELLANEOUS
Abstract: International audience; no abstract
Published: 2017

12. Biallelic Mutations in LIPT2 Cause a Mitochondrial Lipoylation Defect Associated with Severe Neonatal Encephalopathy

Author: Audrey Boutron, Florence Habarou, Nathalie Boddaert, Tobias B. Haack, Johannes A. Mayr, Richard J. Rodenburg, G. Christoph Korenke, Chris Ottolenghi, Coraline Grisel, Holger Prokisch, Dominique Chretien, Christine Bole-Feysot, Stefan Kölker, Agnès Delahodde, Ivan Nemazanyy, Monika Eisermann, Thomas Meitinger, Nicolas Goudin, Agnès Rötig, Robert Barouki, Iris Marquardt, Marine Madrange, Patrick Nitschke, Pascale de Lonlay, Clément Pontoizeau, Yamina Hamel, Tim M. Strom, Elise Lebigot, Cécile Laroche, René G. Feichtinger, Bernadette Chadefaux-Vekemans, Kanetee Busiah, CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut Cochin (IC UM3 (UMR 8104 / U1016)), Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Eurecom [Sophia Antipolis], ISA NMR Methods for Metabolism - Methodes RMN en métabolomique (2014-2018), Institut des Sciences Analytiques (ISA), Institut de Chimie du CNRS (INC)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Epilepsies de l'Enfant et Plasticité Cérébrale (U1129), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Dept Biochem, Universidade Federal de Pernambuco [Recife] (UFPE), Neuroprotection du Cerveau en Développement / Promoting Research Oriented Towards Early Cns Therapies (PROTECT), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Robert Debré-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM), Unité de Biochimie Métabolique, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Toxicité environnementale, cibles thérapeutiques, signalisation cellulaire (T3S - UMR_S 1124), Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Plate Forme Paris Descartes de Bioinformatique (BIP-D), Université Paris Descartes - Paris 5 (UPD5), Plateforme d'Imagerie Cellulaire [SFR Necker], Service de Radiologie et imagerie médicale [CHU Necker], Institut de Biologie Intégrative de la Cellule (I2BC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Fonctions et dysfonctions de la mitochondrie (FDMITO), Département Biologie Cellulaire (BioCell), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Biologie Intégrative de la Cellule (I2BC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Division of Inherited Metabolic Diseases, University Children's Hospital Heidelberg, Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM), Helmholtz-Zentrum München (HZM), Institute of Human Genetics, Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM)-German Research Center for Environmental Health-Helmholtz-Zentrum München (HZM), Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de biochimie métabolique [CHU Necker], Génétique et épigénétique des maladies métaboliques, neurosensorielles et du développement (Inserm U781), Service de Biochimie [CHU Bicêtre], AP-HP Hôpital Bicêtre (Le Kremlin-Bicêtre), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), NMR Methods for Metabolism - Methodes RMN en métabolomique, Centre National de la Recherche Scientifique (CNRS)-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École normale supérieure - Lyon (ENS Lyon)-Centre National de la Recherche Scientifique (CNRS)-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École normale supérieure - Lyon (ENS Lyon), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Hôpital Robert Debré-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Necker - Enfants Malades [AP-HP], Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay, Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay-Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay-Institut de Biologie Intégrative de la Cellule (I2BC), Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay-Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay, Technical University of Munich (TUM), Technische Universität München [München] (TUM)-Helmholtz-Zentrum München (HZM)-German Research Center for Environmental Health, CHU Necker - Enfants Malades [AP-HP]-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM)-Helmholtz-Zentrum München (HZM)-German Research Center for Environmental Health, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Helmholtz Zentrum München = German Research Center for Environmental Health, and Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM)-Helmholtz Zentrum München = German Research Center for Environmental Health
Subjects: 0301 basic medicine, [SDV]Life Sciences [q-bio], Dehydrogenase, chemistry.chemical_compound, 0302 clinical medicine, Amino Acids, Genetics (clinical), Cells, Cultured, Brain Diseases, Brain Mapping, Glycine cleavage system, Thioctic Acid, Brain, Metabolic Disorders Radboud Institute for Molecular Life Sciences [Radboudumc 6], Pyruvate dehydrogenase complex, encephalopathy, metabolic flux, Magnetic Resonance Imaging, 3. Good health, Mitochondria, Lipoic acid, Biochemistry, α-oxoglutarate dehydrogenase, Leucine, Protein Binding, medicine.medical_specialty, Lipoylation, Glycine, Biology, 03 medical and health sciences, Oxygen Consumption, pyruvate dehydrogenase, Internal medicine, Report, Genetics, medicine, LIPT2, Humans, hyperglycinemia, Infant, Newborn, Lipt2, Encephalopathy, Hyperglycinemia, Lipoic Acid, Metabolic Flux, Pyruvate Dehydrogenase, α-oxoglutarate Dehydrogenase, lipoic acid, 030104 developmental biology, Endocrinology, chemistry, Atrophy, Branched-chain alpha-keto acid dehydrogenase complex, Energy Metabolism, 030217 neurology & neurosurgery, Acyltransferases, Protein lipoylation
Abstract: Item does not contain fulltext Lipoate serves as a cofactor for the glycine cleavage system (GCS) and four 2-oxoacid dehydrogenases functioning in energy metabolism (alpha-oxoglutarate dehydrogenase [alpha-KGDHc] and pyruvate dehydrogenase [PDHc]), or amino acid metabolism (branched-chain oxoacid dehydrogenase, 2-oxoadipate dehydrogenase). Mitochondrial lipoate synthesis involves three enzymatic steps catalyzed sequentially by lipoyl(octanoyl) transferase 2 (LIPT2), lipoic acid synthetase (LIAS), and lipoyltransferase 1 (LIPT1). Mutations in LIAS have been associated with nonketotic hyperglycinemia-like early-onset convulsions and encephalopathy combined with a defect in mitochondrial energy metabolism. LIPT1 deficiency spares GCS deficiency and has been associated with a biochemical signature of combined 2-oxoacid dehydrogenase deficiency leading to early death or Leigh-like encephalopathy. We report on the identification of biallelic LIPT2 mutations in three affected individuals from two families with severe neonatal encephalopathy. Brain MRI showed major cortical atrophy with white matter abnormalities and cysts. Plasma glycine was mildly increased. Affected individuals' fibroblasts showed reduced oxygen consumption rates, PDHc, alpha-KGDHc activities, leucine catabolic flux, and decreased protein lipoylation. A normalization of lipoylation was observed after expression of wild-type LIPT2, arguing for LIPT2 requirement in intramitochondrial lipoate synthesis. Lipoic acid supplementation did not improve clinical condition nor activities of PDHc, alpha-KGDHc, or leucine metabolism in fibroblasts and was ineffective in yeast deleted for the orthologous LIP2.
Published: 2017

13. Expression and epigenomic landscape of the sex chromosomes in mouse post-meiotic male germ cells

Author: Charlotte Moretti, Daniel Vaiman, Frédéric Tores, Julie Cocquet, Institut Cochin ( 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 ), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker ( SFR Necker - UMS 3633 / US24 ), Assistance publique - Hôpitaux de Paris (AP-HP)-Université Paris Descartes - Paris 5 ( UPD5 ) -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)-Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), This work was supported by Inserm (Institut National de la Sante et de la Recherche Medicale), Cnrs (Centre National de la Recherche Scientifique), Université Paris Descartes, the Agence Nationale de la Recherche program ANR-12–JSV2-0005–01 (to J.C.) and a Marie Curie fellowship FP7-PEOPLE-2010-IEF-273143 (to J.C.). The funding bodies did not have any role in the design of the study, the collection, analysis, and interpretation of data nor in the writing of the manuscript., 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), Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), BMC, BMC, and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Epigenomics, Male, 0301 basic medicine, X Chromosome, Mouse, [SDV]Life Sciences [q-bio], Spermiogenesis, Biology, Crotonylation, Y chromosome, Genome, H3K9me3, Histones, Mice, 03 medical and health sciences, Meiosis, Y Chromosome, Genetics, Animals, Spermatogenesis, Molecular Biology, Autosome, MSCI, [ SDV ] Life Sciences [q-bio], Sequence Analysis, RNA, Research, High-Throughput Nucleotide Sequencing, Chromosome, Sex chromosomes, H3K4me3, H3K27ac, Chromosome 14, Spermatids, Chromatin, [SDV] Life Sciences [q-bio], Germ Cells, 030104 developmental biology, Microscopy, Fluorescence, Post-meiotic sex chromatin
Abstract: Background During meiosis, the X and Y chromosomes are transcriptionally silenced. The persistence of repressive chromatin marks on the sex chromatin after meiosis initially led to the assumption that XY gene silencing persists to some extent in spermatids. Considering the many reports of XY-linked genes expressed and needed in the post-meiotic phase of mouse spermatogenesis, it is still unclear whether or not the mouse sex chromatin is a repressive or permissive environment, after meiosis. Results To determine the transcriptional and chromatin state of the sex chromosomes after meiosis, we re-analyzed ten ChIP-Seq datasets performed on mouse round spermatids and four RNA-seq datasets from male germ cells purified at different stages of spermatogenesis. For this, we used the last version of the genome (mm10/GRCm38) and included reads that map to several genomic locations in order to properly interpret the high proportion of sex chromosome-encoded multicopy genes. Our study shows that coverage of active epigenetic marks H3K4me3 and Kcr is similar on the sex chromosomes and on autosomes. The post-meiotic sex chromatin nevertheless differs from autosomal chromatin in its enrichment in H3K9me3 and its depletion in H3K27me3 and H4 acetylation. We also identified a posttranslational modification, H3K27ac, which specifically accumulates on the Y chromosome. In parallel, we found that the X and Y chromosomes are enriched in genes expressed post-meiotically and display a higher proportion of spermatid-specific genes compared to autosomes. Finally, we observed that portions of chromosome 14 and of the sex chromosomes share specific features, such as enrichment in H3K9me3 and the presence of multicopy genes that are specifically expressed in round spermatids, suggesting that parts of chromosome 14 are under the same evolutionary constraints than the sex chromosomes. Conclusions Based on our expression and epigenomic studies, we conclude that, after meiosis, the mouse sex chromosomes are no longer silenced but are nevertheless regulated differently than autosomes and accumulate different chromatin marks. We propose that post-meiotic selective constraints are at the basis of the enrichment of spermatid-specific genes and of the peculiar chromatin composition of the sex chromosomes and of parts of chromosome 14. Electronic supplementary material The online version of this article (doi:10.1186/s13072-016-0099-8) contains supplementary material, which is available to authorized users.
Published: 2016

14. Comprehensive Identification of Meningococcal Genes and Small Noncoding RNAs Required for Host Cell Colonization

Author: Elena Capel, Anne Jamet, Anne Cavau, Eric Frapy, Aldert Zomer, Mathieu Coureuil, Xavier Nassif, Haniaa Bouzinba-Ségard, Julie Meyer, Emmanuelle Bille, Sandrine Bourdoulous, Thomas Nussbaumer, Christine Bole, Brigitte Izac, Thomas Rattei, Franck Letourneur, LS Klinisch Onderzoek Wagenaar, Sub Bioinformatics, dI&I I&I-4, Infection & Immunity, Theoretical Biology and Bioinformatics, Institut Necker Enfants-Malades (INEM) ( INEM - UM 111 (UMR 8253 / U1151) ), Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Department of Infectious Diseases and Immunology, Utrecht University [Utrecht], CUBE Division of Computational Systems Biology, University of Vienna [Vienna], Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker ( SFR Necker - UMS 3633 / US24 ), Assistance publique - Hôpitaux de Paris (AP-HP)-Université Paris Descartes - Paris 5 ( UPD5 ) -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)-Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Institut Cochin ( UM3 (UMR 8104 / U1016) ), CHU Necker - Enfants Malades [AP-HP], Unidade de Microbiologia Molecular e Infecção, Instituto de Medicina Molecular, This work was supported by ANR grant ANR-14-IFEC-0006-01 callERANET INFECT-ERA 2014, the grant program EMERGENCE from LaMairie de Paris, and a postdoctoral grant supported by the DIM Malinffrom the Conseil Régional de l’Ile-De-France., Bos, Mireille, Institut Necker Enfants-Malades (INEM - UM 111 (UMR 8253 / U1151)), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institut Cochin (IC UM3 (UMR 8104 / U1016)), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)
Subjects: 0301 basic medicine, Virulence Factors, 030106 microbiology, Virulence, Biology, Neisseria meningitidis, medicine.disease_cause, Microbiology, Cell Line, 03 medical and health sciences, Gene Knockout Techniques, Intergenic region, Virology, medicine, [SDV.BBM] Life Sciences [q-bio]/Biochemistry, Molecular Biology, Humans, Colonization, Genomic library, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology, Pathogen, Gene, [ SDV.BBM ] Life Sciences [q-bio]/Biochemistry, Molecular Biology, Gene Library, Genetics, Endothelial Cells, Epithelial Cells, Phenotype, Endocytosis, QR1-502, 3. Good health, Mutagenesis, Insertional, DNA Transposable Elements, RNA, Small Untranslated, Research Article
Abstract: Neisseria meningitidis is a leading cause of bacterial meningitis and septicemia, affecting infants and adults worldwide. N. meningitidis is also a common inhabitant of the human nasopharynx and, as such, is highly adapted to its niche. During bacteremia, N. meningitidis gains access to the blood compartment, where it adheres to endothelial cells of blood vessels and causes dramatic vascular damage. Colonization of the nasopharyngeal niche and communication with the different human cell types is a major issue of the N. meningitidis life cycle that is poorly understood. Here, highly saturated random transposon insertion libraries of N. meningitidis were engineered, and the fitness of mutations during routine growth and that of colonization of endothelial and epithelial cells in a flow device were assessed in a transposon insertion site sequencing (Tn-seq) analysis. This allowed the identification of genes essential for bacterial growth and genes specifically required for host cell colonization. In addition, after having identified the small noncoding RNAs (sRNAs) located in intergenic regions, the phenotypes associated with mutations in those sRNAs were defined. A total of 383 genes and 8 intergenic regions containing sRNA candidates were identified to be essential for growth, while 288 genes and 33 intergenic regions containing sRNA candidates were found to be specifically required for host cell colonization., IMPORTANCE Meningococcal meningitis is a common cause of meningitis in infants and adults. Neisseria meningitidis (meningococcus) is also a commensal bacterium of the nasopharynx and is carried by 3 to 30% of healthy humans. Under some unknown circumstances, N. meningitidis is able to invade the bloodstream and cause either meningitis or a fatal septicemia known as purpura fulminans. The onset of symptoms is sudden, and death can follow within hours. Although many meningococcal virulence factors have been identified, the mechanisms that allow the bacterium to switch from the commensal to pathogen state remain unknown. Therefore, we used a Tn-seq strategy coupled to high-throughput DNA sequencing technologies to find genes for proteins used by N. meningitidis to specifically colonize epithelial cells and primary brain endothelial cells. We identified 383 genes and 8 intergenic regions containing sRNAs essential for growth and 288 genes and 33 intergenic regions containing sRNAs required specifically for host cell colonization.
Published: 2016

15. Refining the phenotype associated with CASC5 mutation

Author: Marc Abramowicz, Karine Siquier-Pernet, Patrick Nitschke, Christine Bole-Feysot, Myriam Abada-Dendib, Florine Verny, Malika Chaouch, Abdelkrim Saadi, Arnold Munnich, Laurence Colleaux, Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université Paris Descartes - Paris 5 (UPD5), Université Sorbonne Paris Cité (USPC), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Service de Neurologie, CHU Ben Aknoun - Centre Hospitalo Universitaire de Ben Aknoun [Alger], Department of Medical Genetics [Bruxelles], Hôpital Erasme [Bruxelles] (ULB), Faculté de Médecine [Bruxelles] (ULB), Université libre de Bruxelles (ULB)-Université libre de Bruxelles (ULB)-Faculté de Médecine [Bruxelles] (ULB), Université libre de Bruxelles (ULB)-Université libre de Bruxelles (ULB), Centre National de la Recherche Scientifique (CNRS)-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 Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), and Hôpital Erasme (Bruxelles)
Subjects: 0301 basic medicine, Adult, Male, Microcephaly, DNA Mutational Analysis, Consanguinity, Biology, Short stature, Polymorphism, Single Nucleotide, 03 medical and health sciences, Cellular and Molecular Neuroscience, Young Adult, Neurodevelopmental disorder, Intellectual Disability, Genetics, medicine, Missense mutation, Humans, Family, Genetics (clinical), Exome sequencing, ComputingMilieux_MISCELLANEOUS, medicine.disease, Founder Effect, 3. Good health, Pedigree, 030104 developmental biology, Phenotype, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Codon, Nonsense, Algeria, Mutation (genetic algorithm), Female, medicine.symptom, Microtubule-Associated Proteins, Founder effect
Abstract: Autosomal recessive primary microcephaly is a neurodevelopmental disorder characterized by congenitally reduced head circumference by at least two standard deviations (SD) below the mean for age and gender. It is associated with nonprogressive mental retardation of variable degree, minimal neurological deficit with no evidence of architectural anomalies of the brain. So far, 12 genetic loci (MCPH1-12) and corresponding genes have been identified. Most of these encode centrosomal proteins. CASC5 is one the most recently unravelled genes responsible for MCPH with mutations reported in three consanguineous families of Moroccan origin, all of whom harboured the same CASC5 homozygous mutation (c.6125G>A; p.Met2041Ile). Here, we report the identification, by whole exome sequencing, of the same missense mutation in a consanguineous Algerian family. All patients exhibited a similar clinical phenotype, including congenital microcephaly with head circumferences ranging from -3 to -4 standard deviations (SD) after age 5 years, moderate to severe cognitive impairment, short stature (adult height -3 SD), dysmorphic features included a sloping forehead, thick eyebrows, synophris and a low columella. Severe vermis hypoplasia and a large cyst of the posterior fossa were observed in one patient. Close microsatellite markers showed identical alleles in the Algerian the previously and Moroccan patients. This study confirms the involvement of CASC5 in autosomal recessive microcephaly and supports the hypothesis of a founder effect of the c.6125G>A mutation. In addition, this report refines the phenotype of this newly recognized form of primary microcephaly.
Published: 2016

16. Mutations in NONO lead to syndromic intellectual disability and inhibitory synaptic defects

Author: Giovanna Bosshard, Steven J Moss, Christine Bole-Feysot, Jean-Marc Fritschy, Karine Siquier-Pernet, Patrick Nitschké, Olivier Alibeu, Ann-Kristina Fritz, Dennis Mircsof, David P. Wolfer, Florence Crestani, Markus Rudin, Steven A. Brown, Nathalie Boddaert, Rochelle M. Hines, Arnold Munnich, Jeanne Amiel, Petra Seebeck, Matej Žnidarič, Christina Koester, Nicolas Cagnard, Ludmila Gaspar, Maéva Langouët, Shiva K. Tyagarajan, Laurence Colleaux, Aileen Schröter, Marlène Rio, Sébastien Moutton, Katrina Prescott, 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), Université Sorbonne Paris Cité (USPC), CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Génétique Médicale [CHU Necker], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Plateforme Bioinformatique [SFR Necker] (BIP-D), Institute of Anatomy, Universität Zürich [Zürich] = University of Zurich (UZH), Service de radiologie pédiatrique [CHU Necker], Department of Clnical Genetics, Chapel Allerton Hospital, Institute of Pharmacology and Toxicology [Zurich], University of Zurich, Brown, Steven A, Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Necker - Enfants Malades [AP-HP], Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), University of Zürich [Zürich] (UZH), and Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)
Subjects: Male, Protein family, Adolescent, 10050 Institute of Pharmacology and Toxicology, RNA-binding protein, 610 Medicine & health, Mice, Transgenic, Biology, Inhibitory postsynaptic potential, Article, Mice, Nuclear Matrix-Associated Proteins, Cellular neuroscience, Intellectual Disability, Intellectual disability, medicine, Transcriptional regulation, Animals, Humans, 10237 Institute of Biomedical Engineering, Cells, Cultured, ComputingMilieux_MISCELLANEOUS, Genetics, Gephyrin, General Neuroscience, 2800 General Neuroscience, Brain, RNA-Binding Proteins, Neural Inhibition, medicine.disease, Pedigree, DNA-Binding Proteins, Mice, Inbred C57BL, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Mutation, Synapses, biology.protein, GABAergic, 570 Life sciences, biology, Octamer Transcription Factors, Neuroscience
Abstract: The NONO protein has been characterized as an important transcriptional regulator in diverse cellular contexts. Here we show that loss of NONO function is a likely cause of human intellectual disability and that NONO-deficient mice have cognitive and affective deficits. Correspondingly, we find specific defects at inhibitory synapses, where NONO regulates synaptic transcription and gephyrin scaffold structure. Our data identify NONO as a possible neurodevelopmental disease gene and highlight the key role of the DBHS protein family in functional organization of GABAergic synapses.
Published: 2015

17. An in vivo genetic reversion highlights the crucial role of Myb-Like, SWIRM, and MPN domains 1 (MYSM1) in human hematopoiesis and lymphocyte differentiation

Author: Wassila Carpentier, Isabelle Callebaut, Capucine Picard, Nada Jabado, Patrick Revy, Alain Fischer, Fabien Touzot, Laetitia Kermasson, Nathalie Lambert, Tangui Le Guen, Marina Cavazzana, Patrick Nitschke, Jean Soulier, Chantal Lagresle-Peyrou, Jean-Pierre de Villartay, Annick Lim, Christine Bole-Feysot, Isabelle André-Schmutz, Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CIC-BT 502 INSERM, Departement de Biotherapie, the Study Center of Primary Immunodeficiencies, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Bioinformatique, Plateforme Post-génomique de la Pitié-Salpêtrière (P3S), UMS omique (OMIQUE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Département d'Immunologie - Department of Immunology, Institut Pasteur [Paris] (IP), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), INSERM U944 Laboratoire de Pathologie et Virologie Moléculaire, Laboratoire de Pathologie et Virologie Moléculaire, the Genome Quebec Innovation Centre, McGill University = Université McGill [Montréal, Canada], Collège de France - Chaire Médecine expérimentale (A. Fischer), Collège de France (CdF (institution)), Imagine - Institut des maladies génétiques ( IMAGINE - U1163 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université Paris Descartes - Paris 5 ( UPD5 ), Plateforme Post-génomique de la Pitié-Salpêtrière ( P3S ), UMS omique ( OMIQUE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Structure Fédérative de Recherche Necker ( SFR Necker - UMS 3633 / US24 ), Centre National de la Recherche Scientifique ( CNRS ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Assistance publique - Hôpitaux de Paris (AP-HP)-Centre National de la Recherche Scientifique ( CNRS ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Assistance publique - Hôpitaux de Paris (AP-HP), Département d'Immunologie, Institut Pasteur [Paris], Institut de minéralogie, de physique des matériaux et de cosmochimie ( IMPMC ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Muséum National d'Histoire Naturelle ( MNHN ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut de recherche pour le développement [IRD] : UR206, McGill University, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Chaire Médecine expérimentale (A. Fischer), Centre National de la Recherche Scientifique (CNRS)-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 Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), and Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: Male, T-Lymphocytes, [SDV]Life Sciences [q-bio], Immunology, Biology, Lymphopenia, MYSM1, medicine, Immunology and Allergy, Gene silencing, Missense mutation, Humans, histone deubiquitinase, MYB, Transcription factor, Gene, Genetics, B-Lymphocytes, Hematopoietic stem cell homeostasis, [ SDV ] Life Sciences [q-bio], Lymphocyte differentiation, Immunologic Deficiency Syndromes, Hematopoietic stem cell, Infant, Cell Differentiation, genetic reversion, 3. Good health, Hematopoiesis, DNA-Binding Proteins, medicine.anatomical_structure, Mutation, Trans-Activators, Ubiquitin-Specific Proteases, immunodeficiency, Transcription Factors
Abstract: Myb-Like, SWIRM, and MPN domains 1 (MYSM1) is a metalloprotease that deubiquitinates the K119- monoubiquitinated form of histone 2A (H2A), a chromatin marker associated with gene transcription silencing. Likewise, it has been reported that murine Mysm1 participates in transcription derepression of genes, among which are transcription factors involved in hematopoietic stem cell homeostasis, hematopoiesis, and lymphocyte differentiation. However, whether MYSM1 has a similar function in human subjects remains unclear. Here we describe a patient presenting with a complete lack of B lymphocytes, T-cell lymphopenia, defective hematopoiesis, and developmental abnormalities. Objectives: We sought to characterize the underlying genetic cause of this syndrome. Methods: We performed genome-wide homozygosity mapping, followed by whole-exome sequencing. Results: Genetic analysis revealed that this novel disorder is caused by a homozygous MYSM1 missense mutation affecting the catalytic site within the deubiquitinase JAB1/MPN/Mov34 (JAMM)/MPN domain. Remarkably, during the course of our study, the patient recovered a normal immunohematologic phenotype. Genetic analysis indicated that this improvement originated from a spontaneous genetic reversion of the MYSM1 mutation in a hematopoietic stem cell. Conclusions: We here define a novel human immunodeficiency and provide evidence that MYSM1 is essential for proper immunohematopoietic development in human subjects. In addition, we describe one of the few examples of spontaneous in vivo genetic cure of a human immunodeficiency.
Published: 2015

18. Utility of whole exome sequencing for the early diagnosis of pediatric-onset cerebellar atrophy associated with developmental delay in an inbred population

Author: Michael Nicouleau, Giulia Barcia, Mélanie Parisot, Arnold Munnich, Laurence Colleaux, Christine Bole-Feysot, Vincent Cantagrel, Isabelle Desguerre, Patrick Nitschke, Nathalie Boddaert, Nadia Bahi-Buisson, Cécile Masson, Daniel Medina-Cano, Marlène Rio, Hisham Megahed, Karine Siquier-Pernet, Clinical Genetics Department [Dokki, Egypt], Human Genetics and Genome Research Division [Dokki, Egypt]-National Research Center [Dokki, Egypt], Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Plate Forme Paris Descartes de Bioinformatique (BIP-D), Université Paris Descartes - Paris 5 (UPD5), Service de neurologie pédiatrique [CHU Necker], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Génétique Médicale [CHU Necker], Service de radiologie pédiatrique [CHU Necker], ANR-12-PDOC-0026,CerID-Gene,Mécanismes génétiques et physiopathologiques responsables de déficiences intellectuelles associées à une malformation cérébelleuse(2012), ANR-10-IAHU-0001,Imagine,Institut Hospitalo-Universitaire Imagine(2010), Université Sorbonne Paris Cité (USPC), Epilepsies de l'Enfant et Plasticité Cérébrale (U1129), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Neuroimagerie en psychiatrie (U1000), Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Imagine - Institut des maladies génétiques ( IMAGINE - U1163 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université Paris Descartes - Paris 5 ( UPD5 ), Structure Fédérative de Recherche Necker ( SFR Necker - UMS 3633 / US24 ), Assistance publique - Hôpitaux de Paris (AP-HP)-Université Paris Descartes - Paris 5 ( UPD5 ) -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)-Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Plate Forme Paris Descartes de Bioinformatique ( BIP-D ), Université Paris Descartes - Paris 5 ( UPD5 ), Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Necker - Enfants Malades [AP-HP], ANR-12-PDOC-0026,CerID-Gene,Mécanismes génétiques et physiopathologiques responsables de déficiences intellectuelles associées à une malformation cérébelleuse ( 2012 ), ANR-10-IAHU-0001/10-IAHU-0001,Imagine,Imagine ( 2010 ), BMC, BMC, Retour Post-Doctorant - Mécanismes génétiques et physiopathologiques responsables de déficiences intellectuelles associées à une malformation cérébelleuse - - CerID-Gene2012 - ANR-12-PDOC-0026 - PDOC - VALID, Instituts Hospitalo-Universitaires - Institut Hospitalo-Universitaire Imagine - - Imagine2010 - ANR-10-IAHU-0001 - IAHU - VALID, Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Necker - Enfants Malades [AP-HP], Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), CHU Necker - Enfants Malades [AP-HP]-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), and Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)
Subjects: Male, 0301 basic medicine, Proband, Exome sequencing, Developmental Disabilities, [SDV]Life Sciences [q-bio], Intellectual disability, 0302 clinical medicine, Exome, Genetics(clinical), Pharmacology (medical), Molybdenum cofactor deficiency, Genetics (clinical), ComputingMilieux_MISCELLANEOUS, KIF1A, Genetics, Medicine(all), MOCS2, Brain, General Medicine, Magnetic Resonance Imaging, 3. Good health, [SDV] Life Sciences [q-bio], Phenotype, Child, Preschool, Cerebellum atrophy, Female, Cerebellar atrophy, medicine.symptom, Cerebellar Ataxia, Biology, 03 medical and health sciences, Atrophy, medicine, Humans, Cerebellar ataxia, [ SDV ] Life Sciences [q-bio], Research, Sequence Analysis, DNA, medicine.disease, Human genetics, Early Diagnosis, 030104 developmental biology, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Mutation, 030217 neurology & neurosurgery
Abstract: Background Cerebellar atrophy and developmental delay are commonly associated features in large numbers of genetic diseases that frequently also include epilepsy. These defects are highly heterogeneous on both the genetic and clinical levels. Patients with these signs also typically present with non-specific neuroimaging results that can help prioritize further investigation but don’t suggest a specific molecular diagnosis. Methods To genetically explore a cohort of 18 Egyptian families with undiagnosed cerebellar atrophy identified on MRI, we sequenced probands and some non-affected family members via high-coverage whole exome sequencing (WES; >97 % of the exome covered at least by 30x). Patients were mostly from consanguineous families, either sporadic or multiplex. We analyzed WES data and filtered variants according to dominant and recessive inheritance models. Results We successfully identified disease-causing mutations in half of the families screened (9/18). These mutations are located in seven different genes, PLA2G6 being the gene most frequently mutated (n = 3). We also identified a recurrent de novo mutation in the KIF1A gene and a molybdenum cofactor deficiency caused by the loss of the start codon in the MOCS2A open-reading frame in a mildly affected subject. Conclusions This study illustrates the necessity of screening for dominant mutations in WES data from consanguineous families. Our identification of a patient with a mild and improving phenotype carrying a previously characterized severe loss of function mutation also broadens the clinical spectrum associated with molybdenum cofactor deficiency. Electronic supplementary material The online version of this article (doi:10.1186/s13023-016-0436-9) contains supplementary material, which is available to authorized users.
Published: 2015

19. Contiguous mutation syndrome in the era of high-throughput sequencing

Author: Langouët, Maéva, Siquier-Pernet, Karine, Sanquer, Sylvia, Bole-Feysot, Christine, Nitschke, Patrick, Boddaert, Nathalie, Munnich, Arnold, Mancini, Grazia, Barouki, Robert, Amiel, Jeanne, Colleaux, Laurence, Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Molecular and pathophysiological bases of cognitive disorders (Equipe Inserm 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), Université Paris Descartes - Paris 5 (UPD5), Université Sorbonne Paris Cité (USPC), CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de biochimie métabolique [CHU Necker], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Plateforme Bioinformatique [SFR Necker] (BIP-D), Service de radiologie pédiatrique [CHU Necker], Service de Génétique Médicale [CHU Necker], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre National de la Recherche Scientifique (CNRS)-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 Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Necker - Enfants Malades [AP-HP]-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Necker - Enfants Malades [AP-HP], and Clinical Genetics
Subjects: [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2015

20. Submicroscopic Deletions at 13q32.1 Cause Congenital Microcoria

Author: Marthe Vilotte, Patrick Calvas, Arnold Munnich, Nicolas Chassaing, Olivier Roche, Akihiko Tawara, Josseline Kaplan, Antoine Guilloux, Alain Regnier, Jean-Yves Douet, Arturo Ramirez-Miranda, Christine Bole-Feysot, Elfride De Baere, Hannah Verdin, Bruno Passet, Yusuke Nakamura, Juan Carlos Zenteno, Hiroyuki Kondo, Masaru Iwai, Ken Yamamoto, Toshihiro Tanaka, Sylvie Gerber, Jean-Michel Rozet, Jean-Luc Vilotte, Wataru Kimura, Lucas Fares-Taie, Isabelle Raymond-Letron, Hugo Moisset, Sylvie Odent, Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), University of Occupational and Environmental Health [Kitakyushu] (UEOH), Instituto de Oftalmologia Fundacion Conde de la Valenciana AC, Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Center for Medical Genetics [Ghent], Ghent University Hospital, Génétique Animale et Biologie Intégrative (GABI), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Kyushu University [Fukuoka], Ehime University [Matsuyama], Ehime University Graduate School of Medecine, Ehime Medical Center, Tokyo Medical and Dental University, Center for Integrative Medical Sciences (RIKEN), University of Chicago, Kimura Eye Clinic, Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Université Paris Descartes - Paris 5 (UPD5)-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) (APHP)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), CHU Pontchaillou [Rennes], 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 ), Centre Hospitalier Universitaire de Toulouse, CHU Necker - Enfants Malades [AP-HP], This work was supported by grants from the Fédération des Aveugles de France (FAF) to LFT, Retina France to JMR and Geniris to JMR and PC, the Ministry of Education, Culture, Sport, Science and Technology of Japan Grant-in-aid N°20592067 to AT and the Conde de Valenciana Foundation patronage to ARM and JCZ., Imagine - Institut des maladies génétiques ( IMAGINE - U1163 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université Paris Descartes - Paris 5 ( UPD5 ), University of Occupational and Environmental Health [Kitakyushu] ( UEOH ), Ecole Nationale Vétérinaire de Toulouse ( ENVT ), Institut National Polytechnique de Toulouse ( INPT ), Génétique Animale et Biologie Intégrative ( GABI ), Institut National de la Recherche Agronomique ( INRA ) -AgroParisTech, Center for Integrative Medical Sciences ( RIKEN ), Structure Fédérative de Recherche Necker ( SFR Necker - UMS 3633 / US24 ), Assistance publique - Hôpitaux de Paris (AP-HP)-Université Paris Descartes - Paris 5 ( UPD5 ) -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)-Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), 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 ), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Toulouse (UT)-Université de Toulouse (UT), Kyushu University, Ehime University [Matsuyama, Japon], Laboratory for Cardiovascular Genomics and Informatics [Yokohama] (RIKEN IMS), RIKEN Center for Integrative Medical Sciences [Yokohama] (RIKEN IMS), RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN)-RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-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 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 Hospitalier Universitaire de Toulouse (CHU Toulouse), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Universidad Nacional Autónoma de México (UNAM), AgroParisTech-Institut National de la Recherche Agronomique (INRA), Kagoshima University Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University [Japan] (TMDU), RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN), The University of Chicago Medicine [Chicago], Unité différenciation épidermique et auto-immunité rhumatoïde (UDEAR), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM), Hôpital Purpan [Toulouse], CHU Toulouse [Toulouse], Université Paris Descartes - Paris 5 (UPD5), Federation des Aveugles de France (FAF), Retina France, Geniris, Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) 20592067, Conde de Valenciana Foundation patronage, Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research (KAKENHI) 15K05577 221S0002, CARBILLET, Véronique, and Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM)
Subjects: MESH: Sequence Analysis, DNA, [SDV]Life Sciences [q-bio], MESH : Base Sequence, Chromosome Deletion, Chromosomes, Human, Pair 13/genetics, Comparative Genomic Hybridization, Gene Components, Genes, Dominant/genetics, Humans, Hydro-Lyases/genetics, Molecular Sequence Data, Mutation/genetics, Oligonucleotide Array Sequence Analysis, Pedigree, Pupil Disorders/congenital, Pupil Disorders/genetics, Pupil Disorders/pathology, Receptors, Cell Surface/genetics, Sequence Analysis, DNA, MESH: Receptors, Cell Surface / genetics, [SDV.GEN] Life Sciences [q-bio]/Genetics, MESH: Receptors, G-Protein-Coupled, MESH: Base Sequence, medicine.disease_cause, MESH: Pupil Disorders / pathology, Receptors, G-Protein-Coupled, 0302 clinical medicine, MESH: Genes, Dominant / genetics, Pupil Disorders, Myocyte, Genetics(clinical), MESH: Gene Components, 10. No inequality, MESH: Hydro-Lyases / genetics, MESH: Pupil Disorders / congenital, Genetics (clinical), Genes, Dominant, Genetics, 0303 health sciences, Mutation, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, Microcoria, MESH: Pupil Disorders / genetics, MESH: Pedigree, Receptors, Cell Surface, Biology, 03 medical and health sciences, Dysgenesis, MESH: Chromosome Deletion, Report, medicine, Gene, Hydro-Lyases, 030304 developmental biology, Sequence (medicine), [SDV.GEN]Life Sciences [q-bio]/Genetics, MESH: Humans, MESH: Molecular Sequence Data, Base Sequence, Chromosomes, Human, Pair 13, [ SDV ] Life Sciences [q-bio], MESH: Mutation / genetics, Breakpoint, Sequence Analysis, DNA, MESH: Chromosomes, Human, Pair 13 / genetics, Molecular biology, MESH: Comparative Genomic Hybridization, MESH: Oligonucleotide Array Sequence Analysis, 030221 ophthalmology & optometry, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Comparative genomic hybridization
Abstract: International audience; Congenital microcoria (MCOR) is a rare autosomal-dominant disorder characterized by inability of the iris to dilate owing to absence of dilator pupillae muscle. So far, a dozen MCOR-affected families have been reported worldwide. By using whole-genome oligonucleotide array CGH, we have identified deletions at 13q32.1 segregating with MCOR in six families originating from France, Japan, and Mexico. Breakpoint sequence analyses showed nonrecurrent deletions in 5/6 families. The deletions varied from 35 kbp to 80 kbp in size, but invariably encompassed or interrupted only two genes: TGDS encoding the TDP-glucose 4,6-dehydratase and GPR180 encoding the G protein-coupled receptor 180, also known as intimal thickness-related receptor (ITR). Unlike TGDS which has no known function in muscle cells, GPR180 is involved in the regulation of smooth muscle cell growth. The identification of a null GPR180 mutation segregating over two generations with iridocorneal angle dysgenesis, which can be regarded as a MCOR endophenotype, is consistent with the view that deletions of this gene, with or without the loss of elements regulating the expression of neighboring genes, are the cause of MCOR.
Published: 2015

21. Bacterial ClpB heat-shock protein, an antigen-mimetic of the anorexigenic peptide α-MSH, at the origin of eating disorders

Author: Naouel Tennoune, Martine Pestel-Caron, Jonathan Breton, Christine Bole-Feysot, Marie François, Kuniko Takagi, Pierre Déchelotte, Anu Järv, J-C Do Rego, Wassila Ouelaa, Sergueï O. Fetissov, Romain Legrand, Philippe Chan, Y. Chabane, Kirsti Akkermann, David Vaudry, Nicolas Lucas, Ibtissem Ghouzali, Emmanuelle Dé, Jaanus Harro, Institute for Research and Innovation in Biomedicine (IRIB), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institut de biologie et chimie des protéines [Lyon] (IBCP), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Institut Pascal (IP), SIGMA Clermont (SIGMA Clermont)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), University of Tartu, Nutrition, inflammation et dysfonctionnement de l'axe intestin-cerveau (ADEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Groupe de Recherche sur l'Adaptation Microbienne (GRAM 2.0), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU), Différenciation et communication neuronale et neuroendocrine (DC2N), Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Polymères Biopolymères Surfaces (PBS), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), SIGMA Clermont (SIGMA Clermont)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020]), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Normandie Université (NU)-Université de Caen Normandie (UNICAEN), Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS), Institut Pascal - Clermont Auvergne (IP), Sigma CLERMONT (Sigma CLERMONT)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Graduate School of Engineering, Yokohama National University, Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Centre National de la Recherche Scientifique (CNRS)-Normandie Université (NU), Normandie Université (NU)-Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Pathology Department, and Ippokration Hospital
Subjects: Adult, Male, medicine.medical_specialty, Adolescent, [SDV]Life Sciences [q-bio], Immunoblotting, medicine.disease_cause, Feeding and Eating Disorders, Mice, Young Adult, Cellular and Molecular Neuroscience, Antigen, Internal medicine, Heat shock protein, Escherichia coli, medicine, Animals, Humans, [CHIM]Chemical Sciences, Heat-Shock Proteins, Biological Psychiatry, ComputingMilieux_MISCELLANEOUS, Autoantibodies, 2. Zero hunger, biology, Escherichia coli Proteins, Autoantibody, Endopeptidase Clp, 3. Good health, Mice, Inbred C57BL, Melanocortin 4 receptor, Disease Models, Animal, Psychiatry and Mental health, Endocrinology, alpha-MSH, Immunology, biology.protein, Original Article, Electrophoresis, Polyacrylamide Gel, Female, Antibody, CLPB, hormones, hormone substitutes, and hormone antagonists, Hormone
Abstract: The molecular mechanisms at the origin of eating disorders (EDs), including anorexia nervosa (AN), bulimia and binge-eating disorder (BED), are currently unknown. Previous data indicated that immunoglobulins (Igs) or autoantibodies (auto-Abs) reactive with α-melanocyte-stimulating hormone (α-MSH) are involved in regulation of feeding and emotion; however, the origin of such auto-Abs is unknown. Here, using proteomics, we identified ClpB heat-shock disaggregation chaperone protein of commensal gut bacteria Escherichia coli as a conformational antigen mimetic of α-MSH. We show that ClpB-immunized mice produce anti-ClpB IgG crossreactive with α-MSH, influencing food intake, body weight, anxiety and melanocortin receptor 4 signaling. Furthermore, chronic intragastric delivery of E. coli in mice decreased food intake and stimulated formation of ClpB- and α-MSH-reactive antibodies, while ClpB-deficient E. coli did not affect food intake or antibody levels. Finally, we show that plasma levels of anti-ClpB IgG crossreactive with α-MSH are increased in patients with AN, bulimia and BED, and that the ED Inventory-2 scores in ED patients correlate with anti-ClpB IgG and IgM, which is similar to our previous findings for α-MSH auto-Abs. In conclusion, this work shows that the bacterial ClpB protein, which is present in several commensal and pathogenic microorganisms, can be responsible for the production of auto-Abs crossreactive with α-MSH, associated with altered feeding and emotion in humans with ED. Our data suggest that ClpB-expressing gut microorganisms might be involved in the etiology of EDs.
Published: 2014

22. Mutations in TBCK, Encoding TBC1-Domain-Containing Kinase, Lead to a Recognizable Syndrome of Intellectual Disability and Hypotonia

Author: Bhoj, Elizabeth, Li, Dong, Harr, Margaret, Edvardson, Shimon, Elpeleg, Orly, Chisholm, Elizabeth, Juusola, Jane, Douglas, Ganka, Guillen Sacoto, Maria, Siquier-Pernet, Karine, Saadi, Abdelkrim, Bole-Feysot, Christine, Nitschke, Patrick, Narravula, Alekhya, Walke, Maria, Horner, Peter, Day-Salvatore, Peter, Jayakar, Parul, Vergano, Samantha, Tarnopolsky, Mark, Hegde, Madhuri, Colleaux, Laurence, Crino, Peter, Hakonarson, Hakon, Bhoj, Elizabeth J., Guillen Sacoto, Maria J., Horner, Michele B., Day-Salvatore, Debra-Lynn, Vergano, Samantha A. Schrier, Tarnopolsky, Mark A., The Center for Applied Genomics [Philadelphia, PA, USA], Children’s Hospital of Philadelphia (CHOP ), Department of Mathematics [University of British Columbia], University of British Columbia (UBC), Department of Genetics and Metabolic Diseases and the Monique and Jacques Roboh Department of Genetic Research, Hadassah Hebrew University Medical Center [Jerusalem], GeneDx [Gaithersburg, MD, USA], Imagine - Institut des maladies génétiques (IMAGINE - U1163), 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 Paris Descartes - Paris 5 (UPD5), Université Sorbonne Paris Cité (USPC), CHU Necker - Enfants Malades [AP-HP], Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Plateforme Bioinformatique [SFR Necker] (BIP-D), McMaster University [Hamilton, Ontario], Department of Mathematics [Vancouver] (UBC Mathematics), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Male, 0301 basic medicine, MESH: Signal Transduction, MESH: Continental Population Groups, medicine.disease_cause, 0302 clinical medicine, MESH: Child, Intellectual disability, Genetics(clinical), MESH: Genetic Variation, Child, Genetics (clinical), Genetics, Mutation, Kinase, TOR Serine-Threonine Kinases, Phenotype, Hypotonia, Child, Preschool, Muscle Hypotonia, Female, Signal transduction, medicine.symptom, Signal Transduction, medicine.medical_specialty, MESH: Mutation, Protein Serine-Threonine Kinases, Biology, MESH: Protein-Serine-Threonine Kinases, MESH: Intellectual Disability, 03 medical and health sciences, Atrophy, Intellectual Disability, Report, Internal medicine, medicine, Humans, Alleles, PI3K/AKT/mTOR pathway, MESH: TOR Serine-Threonine Kinases, MESH: Humans, MESH: Muscle Hypotonia, MESH: Alleles, Racial Groups, MESH: Child, Preschool, Genetic Variation, medicine.disease, MESH: Male, 030104 developmental biology, Endocrinology, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, MESH: Female, 030217 neurology & neurosurgery
Abstract: International audience; Through an international multi-center collaboration, 13 individuals from nine unrelated families and affected by likely pathogenic biallelic variants in TBC1-domain-containing kinase (TBCK) were identified through whole-exome sequencing. All affected individuals were found to share a core phenotype of intellectual disability and hypotonia, and many had seizures and showed brain atrophy and white-matter changes on neuroimaging. Minor non-specific facial dysmorphism was also noted in some individuals, including multiple older children who developed coarse features similar to those of storage disorders. TBCK has been shown to regulate the mammalian target of rapamycin (mTOR) signaling pathway, which is also stimulated by exogenous leucine supplementation. TBCK was absent in cells from affected individuals, and decreased phosphorylation of phospho-ribosomal protein S6 was also observed, a finding suggestive of downregulation of mTOR signaling. Lastly, we demonstrated that activation of the mTOR pathway in response to L-leucine supplementation was retained, suggesting a possible avenue for directed therapies for this condition.
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23. Combination of Linkage Mapping and Microarray-Expression Analysis Identifies NF-κB Signaling Defect as a Cause of Autosomal-Recessive Mental Retardation

Author: Astrid Carioux, Asma Smahi, Marlène Rio, Patrick Nitschke, Arnold Munnich, Christine Bole-Feysot, Nathalie Boddaert, Laurence Colleaux, Philippe Guigue, Orianne Philippe, Jean-Marc Plaza, Florence Molinari, 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), Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Plateforme Bioinformatique [SFR Necker] (BIP-D), Plateforme de Génomique [Paris] (Fondation Imagine), Imagine - Institut des maladies génétiques (IHU) (Imagine - U1163), 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), Plateforme de bioinformatique (UNIV Paris Descartes), Université Paris Descartes - Paris 5 (UPD5), This study was supported by the Centre National de la Recherche Scientifique (CNRS), the Agence Nationale de la Recherche (ANR), the Fondation Lejeune, and the Ministère de la Recherche et de l’Enseignement Supérieur., COLLEAUX, Laurence, and 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)
Subjects: Male, Genetic Linkage, MESH: NF-kappa B, IκB kinase, MESH: Base Sequence, MESH: Magnetic Resonance Imaging, Exon, 0302 clinical medicine, Gene expression, Genetics(clinical), Genetics (clinical), Oligonucleotide Array Sequence Analysis, Genetics, Regulation of gene expression, 0303 health sciences, NF-kappa B, Brain, Magnetic Resonance Imaging, MESH: Gene Expression Regulation, I-kappa B Kinase, Pedigree, Female, Adolescent, MESH: Pedigree, Molecular Sequence Data, MESH: Genetic Linkage, Genes, Recessive, [SDV.GEN.GH] Life Sciences [q-bio]/Genetics/Human genetics, Biology, MESH: Intellectual Disability, 03 medical and health sciences, MESH: Brain, MESH: Gene Expression Profiling, Gene mapping, Report, Intellectual Disability, Humans, MESH: I-kappa B Kinase, Gene, MESH: Genes, Recessive, 030304 developmental biology, MESH: Adolescent, MESH: Humans, MESH: Molecular Sequence Data, Base Sequence, Tumor Necrosis Factor-alpha, Gene Expression Profiling, I-Kappa-B Kinase, MESH: Male, Gene expression profiling, Gene Expression Regulation, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, MESH: Tumor Necrosis Factor-alpha, MESH: Oligonucleotide Array Sequence Analysis, MESH: Female, 030217 neurology & neurosurgery
Abstract: International audience; Autosomal-recessive inheritance accounts for nearly 25% of nonsyndromic mental retardation (MR), but the extreme heterogeneity of such conditions markedly hampers gene identification. Combining autozygosity mapping and RNA expression profiling in a consanguineous Tunisian family of three MR children with mild microcephaly and white-matter abnormalities identified the TRAPPC9 gene, which encodes a NF-kappaB-inducing kinase (NIK) and IkappaB kinase complex beta (IKK-beta) binding protein, as a likely candidate. Sequencing analysis revealed a nonsense variant (c.1708C>T [p.R570X]) within exon 9 of this gene that is responsible for an undetectable level of TRAPPC9 protein in patient skin fibroblasts. Moreover, TNF-alpha stimulation assays showed a defect in IkBalpha degradation, suggesting impaired NF-kappaB signaling in patient cells. This study provides evidence of an NF-kappaB signaling defect in isolated MR.
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24. Whole-exome sequence analysis highlights the role of unmasked recessive mutations in copy number variants with incomplete penetrance

Author: Matthieu Egloff, Karine Siquier-Pernet, Lam-Son Nguyen, Geneviève Baujat, Valérie Malan, Patrick Nitschke, Christine Bole-Feysot, Valérie Cormier-Daire, Michel Vekemans, Laurence Colleaux, Tania Attié-Bitach, Université Paris Descartes - Paris 5 (UPD5), Laboratoire Histologie Embryologie Cytogénétique [CHU Necker], CHU Necker - Enfants Malades [AP-HP], Imagine - Institut des maladies génétiques (IMAGINE - U1163), 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 Sorbonne Paris Cité (USPC), Service de Génétique Médicale [CHU Necker], Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Necker - Enfants Malades [AP-HP], Plateforme de génomique [SFR Necker], Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Plateforme Bioinformatique [SFR Necker] (BIP-D), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Necker - Enfants Malades [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-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)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 0301 basic medicine, Male, Penetrance, medicine.disease_cause, MESH: Penetrance, MESH: Child, MESH: Nuclear Receptor Co-Repressor 1, Exome, Copy-number variation, Child, Genetics (clinical), Exome sequencing, Genetics, Mutation, MESH: Exome, MESH: Infant, MESH: Young Adult, Child, Preschool, Female, MESH: DNA Copy Number Variations, Adult, MESH: Mutation, Adolescent, DNA Copy Number Variations, Genes, Recessive, Biology, Brief Communication, 03 medical and health sciences, Young Adult, MESH: Whole Exome Sequencing, Exome Sequencing, medicine, Humans, Nuclear Receptor Co-Repressor 1, Allele, Gene, Chromosomal Deletion, Alleles, MESH: Genes, Recessive, MESH: Neurodevelopmental Disorders, MESH: Adolescent, MESH: Humans, MESH: Alleles, MESH: Child, Preschool, Infant, MESH: Adult, MESH: Male, Nuclear Pore Complex Proteins, 030104 developmental biology, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Neurodevelopmental Disorders, MESH: Female, MESH: Nuclear Pore Complex Proteins
Abstract: International audience; Several hypotheses have been proposed to explain the phenotypic variability between parent and offspring carrying the same genomic imbalance, including unmasking of a recessive variant by a chromosomal deletion. Here, 19 patients with neurodevelopmental disorders harboring a rare deletion inherited from a healthy parent were investigated by whole-exome sequencing to search for SNV on the contralateral segment. This strategy allowed us to identify a candidate variant in two patients in the NUP214 and NCOR1 genes. This result demonstrates that the analysis of the genes included in non-deleted contralateral allele is a key point in the etiological investigation of patients harboring a deletion inherited from a parent. Finally, this strategy is also an interesting approach to identify new recessive intellectual disability genes.
Published: 1970

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24 results on '"Plateforme de génomique [SFR Necker]"'

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24. Whole-exome sequence analysis highlights the role of unmasked recessive mutations in copy number variants with incomplete penetrance

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24 results on '"Plateforme de génomique [SFR Necker]"'

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