1. Unstable TTTTA/TTTCA expansions in MARCH6 are associated with Familial Adult Myoclonic Epilepsy type 3
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Florian R. T., Kraft F., Leitao E., Kaya S., Klebe S., Magnin E., van Rootselaar A. -F., Buratti J., Kuhnel T., Schroder C., Giesselmann S., Tschernoster N., Altmueller J., Lamiral A., Keren B., Nava C., Bouteiller D., Forlani S., Jornea L., Kubica R., Ye T., Plassard D., Jost B., Meyer V., Deleuze J. -F., Delpu Y., Avarello M. D. M., Vijfhuizen L. S., Rudolf G., Hirsch E., Kroes T., Reif P. S., Rosenow F., Ganos C., Vidailhet M., Thivard L., Mathieu A., Bourgeron T., Kurth I., Rafehi H., Steenpass L., Horsthemke B., Berkovic S. F., Bisulli F., Brancati F., Canafoglia L., Casari G., Guerrini R., Ishiura H., Licchetta L., Mei D., Pippucci T., Sadleir L., Scheffer I. E., Striano P., Tinuper P., Tsuji S., Zara F., LeGuern E., Klein K. M., Labauge P., Bennett M. F., Bahlo M., Gecz J., Corbett M. A., Tijssen M. A. J., van den Maagdenberg A. M. J. M., Depienne C., Florian, R. T., Kraft, F., Leitao, E., Kaya, S., Klebe, S., Magnin, E., van Rootselaar, A. -F., Buratti, J., Kuhnel, T., Schroder, C., Giesselmann, S., Tschernoster, N., Altmueller, J., Lamiral, A., Keren, B., Nava, C., Bouteiller, D., Forlani, S., Jornea, L., Kubica, R., Ye, T., Plassard, D., Jost, B., Meyer, V., Deleuze, J. -F., Delpu, Y., Avarello, M. D. M., Vijfhuizen, L. S., Rudolf, G., Hirsch, E., Kroes, T., Reif, P. S., Rosenow, F., Ganos, C., Vidailhet, M., Thivard, L., Mathieu, A., Bourgeron, T., Kurth, I., Rafehi, H., Steenpass, L., Horsthemke, B., Berkovic, S. F., Bisulli, F., Brancati, F., Canafoglia, L., Casari, G., Guerrini, R., Ishiura, H., Licchetta, L., Mei, D., Pippucci, T., Sadleir, L., Scheffer, I. E., Striano, P., Tinuper, P., Tsuji, S., Zara, F., Leguern, E., Klein, K. M., Labauge, P., Bennett, M. F., Bahlo, M., Gecz, J., Corbett, M. A., Tijssen, M. A. J., van den Maagdenberg, A. M. J. M., Depienne, C., Institute of Human Genetics - Institut für Humangenetik [Essen], Universitätsklinikum Essen [Universität Duisburg-Essen] (Uniklinik Essen)-Universitat Duisberg-Essen, Rheinisch-Westfälische Technische Hochschule Aachen University (RWTH), Universitätsklinikum Essen [Universität Duisburg-Essen] (Uniklinik Essen), Universität Duisburg-Essen = University of Duisburg-Essen [Essen], Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Academic Medical Center - Academisch Medisch Centrum [Amsterdam] (AMC), University of Amsterdam [Amsterdam] (UvA), Amsterdam Neuroscience [Pays-Bas], Vrije Universiteit Amsterdam [Amsterdam] (VU)-University of Amsterdam [Amsterdam] (UvA)-VU University Medical Center [Amsterdam], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Centre for Molecular Medicine Cologne [Cologne] (CMMC), University Hospital of Cologne [Cologne], Cologne Center for Genomics [Cologne] (CCG), University of Cologne, Institut du Cerveau = Paris Brain Institute (ICM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institut de Biologie François JACOB (JACOB), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre National de Génotypage (CNG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), genomic vision, Leiden University Medical Center (LUMC), Universiteit Leiden, Centre de référence des épilepsies rares [CHRU Strasbourg] (CRéER), Centre Hospitalier Régional Universitaire de Strasbourg (CHRU de Strasbourg), Service de Neurologie [Strasbourg], CHU Strasbourg-Hopital Civil, School of Biological Sciences [Adelaïde], University of Adelaide, Goethe-University Frankfurt am Main, Philipps Universität Marburg = Philipps University of Marburg, Charité - UniversitätsMedizin = Charité - University Hospital [Berlin], Génétique humaine et fonctions cognitives - Human Genetics and Cognitive Functions (GHFC (UMR_3571 / U-Pasteur_1)), Institut Pasteur [Paris] (IP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), The Walter and Eliza Hall Institute of Medical Research (WEHI), University of Melbourne, Epilepsy Research Centre, University of Calgary, Hôpital Gui de Chauliac [CHU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), South Australian Health and Medical Research Institute [ Adelaide] (SAHMRI), University Medical Center Groningen [Groningen] (UMCG), This study has been financially supported by three different grants from the Fondation Maladies rares to C.D. (2009, 2010, 2016), Assistance Publique des Hôpitaux de Paris (APHP), INSERM, the 'Investissements d’Avenir' programme ANR-10-IAIHU-06 (IHU-A-ICM), University Duisburg-Essen and University Hospital Essen. M.B. was supported by an Australian National Health and Medical Research Council (NHMRC) Program Grant (GNT1054618) and an NHMRC Senior Research Fellowship (GNT1102971). This work was also supported by the Victorian Government’s Operational Infrastructure Support Program and the NHMRC Independent Research Institute Infrastructure Support Scheme (IRIISS). Laura Canafoglia: Member of the European Reference Network on Rare and Complex epilepsies, ERN EpiCARE., We thank the families for their participation in this study, Agnès Rastetter (ICM, Paris, France) for RNA extraction, and Emmanuelle Apartis (Hôpital Saint-Antoine, Paris, France) for electrophysiological assessment of Family 1. DNA extraction and cell culture of lymphoblasts have been performed at the DNA and cell bank of ICM (Paris, France). RNA-seq has been performed on the GenomEast platform of IGBMC, Illkirch, France. WGS has been performed by the Centre National de Recherche en Génomique Humaine (CNRGH) Institut de Biologie François Jacob, Evry, France. We thank Jean-Louis Mandel and Nicolas Charlet-Berguerand (IGBMC, Strasbourg, France), Cécile Cazeneuve (Hôpital Pitié-Salpêtrière, Paris, France), Charles Marcaillou (Integragen, Evry, France) and Isabel Silveira (Porto, Portugal) for valuable discussions., FAME consortium : Berkovic SF, Bisulli F, Brancati F, Canafoglia L, Casari G, Guerrini R, Ishiura H, Licchetta L, Mei D, Pippucci T, Sadleir L, Scheffer IE, Striano P, Tinuper P, Tsuji S, Zara F., Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC), Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre National de Recherche en Génomique Humaine (CNRGH), Institut Pasteur [Paris]-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), RWTH Aachen University, Universität Duisburg-Essen [Essen], Service de Génétique Cytogénétique et Embryologie [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Philipps University of Marburg, Service de Neurologie [CHU Pitié-Salpêtrière], IFR70-CHU Pitié-Salpêtrière [AP-HP], Centre National de la Recherche Scientifique (CNRS)-Institut Pasteur [Paris]-Université de Paris (UP), Hôpital Gui de Chauliac, Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Rahel T. Florian, Florian Kraft, Elsa Leitão, Sabine Kaya, Stephan Klebe, Eloi Magnin, Anne-Fleur van Rootselaar, Julien Buratti, Theresa Kühnel, Christopher Schröder, Sebastian Giesselmann, Nikolai Tschernoster, Janine Altmueller, Anaide Lamiral, Boris Keren, Caroline Nava, Delphine Bouteiller, Sylvie Forlani, Ludmila Jornea, Regina Kubica, Tao Ye, Damien Plassard, Bernard Jost, Vincent Meyer, Jean-François Deleuze, Yannick Delpu, Mario D.M. Avarello, Lisanne S. Vijfhuizen, Gabrielle Rudolf, Edouard Hirsch, Thessa Kroes, Philipp S. Reif, Felix Rosenow, Christos Ganos, Marie Vidailhet, Lionel Thivard, Alexandre Mathieu, Thomas Bourgeron, Ingo Kurth, Haloom Rafehi, Laura Steenpass, Bernhard Horsthemke, FAME consortium, Eric LeGuern, Karl Martin Klein, Pierre Labauge, Mark F. Bennett, Melanie Bahlo, Jozef Gecz, Mark A. Corbett, Marina A.J. Tijssen, Arn M.J.M. van den Maagdenberg, Christel Depienne, Francesca Bisulli, Laura Licchetta, Paolo Tinuper, MATHIEU, Alexandre, Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Institut Pasteur [Paris]-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)
- Subjects
Male ,MESH: Introns ,[SDV]Life Sciences [q-bio] ,Medizin ,MESH: DNA Repeat Expansion ,Epilepsies, Myoclonic ,[SDV.GEN] Life Sciences [q-bio]/Genetics ,MARCH6 ,expansion ,MESH: Ubiquitin-Protein Ligases/genetics ,MESH: Aged ,MESH: Middle Aged ,DNA Repeat Expansion ,Neurodegenerative diseases ,MESH: Epilepsies, Myoclonic ,Chromosome Mapping ,Middle Aged ,MESH: Epilepsies, Myoclonic/genetics ,Pedigree ,MESH: Young Adult ,Female ,ddc:500 ,MESH: Membrane Proteins ,Technology Platforms ,Genomic instability ,Adult ,Adolescent ,MESH: Pedigree ,Ubiquitin-Protein Ligases ,[SDV.GEN.GH] Life Sciences [q-bio]/Genetics/Human genetics ,Familial Adult Myoclonic Epilepsy type 3 ,Article ,Young Adult ,Humans ,Aged ,MESH: Adolescent ,[SDV.GEN]Life Sciences [q-bio]/Genetics ,MESH: Humans ,Epilepsy ,Membrane Proteins ,MESH: Adult ,MESH: Membrane Proteins/genetics ,MESH: Ubiquitin-Protein Ligases ,MESH: Male ,Introns ,[SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics ,MESH: Chromosome Mapping ,MESH: Female ,Neurological disorders - Abstract
Familial Adult Myoclonic Epilepsy (FAME) is a genetically heterogeneous disorder characterized by cortical tremor and seizures. Intronic TTTTA/TTTCA repeat expansions in SAMD12 (FAME1) are the main cause of FAME in Asia. Using genome sequencing and repeat-primed PCR, we identify another site of this repeat expansion, in MARCH6 (FAME3) in four European families. Analysis of single DNA molecules with nanopore sequencing and molecular combing show that expansions range from 3.3 to 14 kb on average. However, we observe considerable variability in expansion length and structure, supporting the existence of multiple expansion configurations in blood cells and fibroblasts of the same individual. Moreover, the largest expansions are associated with micro-rearrangements occurring near the expansion in 20% of cells. This study provides further evidence that FAME is caused by intronic TTTTA/TTTCA expansions in distinct genes and reveals that expansions exhibit an unexpectedly high somatic instability that can ultimately result in genomic rearrangements., Familial cortical myoclonic tremor with epilepsy (FAME) is a slowly progressing cortical tremor mapping to various genomic loci, including intronic expansions in SAMD12 for FAME1. Here, Florian et al. describe mixed intronic TTTTA/TTTCA expansions of various lengths in the first intron of MARCH6 as a cause of FAME3.
- Published
- 2019
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