Making sense of missense variants in TTN-related congenital myopathies
| العنوان: | Making sense of missense variants in TTN-related congenital myopathies |
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| المؤلفون: | Anna Sarkozy, Erik-Jan Kamsteeg, Mark Pfuhl, Nicol C. Voermans, Martin Rees, Corrie E. Erasmus, Hülya-Sevcan Daimagüler, Steven A. Moore, Rahul Phadke, Mark R. Holt, Rolf Schröder, Istvan Bodi, Carla Grosmann, Sebahattin Cirak, E. Matthews, Ay Lin Kho, Peter Van den Bergh, Christian Thiel, Shane McKee, Joel Victor Fluss, Roksana Nikoopour, Charu Deshpande, Jens Reimann, Emily C. Oates, Maria Elena Farrugia, Özkan Özdemir, Isabelle Richard, Cristina Domínguez-González, Chaminda Konersman, Ekkehard Wilichowski, Birgit Brandmeier, Atsushi Fukuzawa, Ana Ferreiro, Heinz Jungbluth, Ros Quinlivan, Sandya Tirupathi, Mathias Gautel, Gabriele Dekomien, Cheryl Longman, Miguel A Fernandez-Garcia, Francesco Muntoni, Michael G. Hanna, Elizabeth Wraige, Elke Hobbiebrunken, Sarah Grover |
| المساهمون: | UCL - SSS/IONS - Institute of NeuroScience, UCL - (SLuc) Service de neurologie, UCL - (SLuc) Centre de référence neuromusculaire, King‘s College London, Evelina London Children's Hospital, Guy's Hospital [London], University of Cologne, Children’s University Hospital of Geneva [Switzerland], Queen Elizabeth University Hospital (Glasgow), National Hospital for Neurology and Neurosurgery [London, UK], Great Ormond Street Hospital for Children [London] (GOSH), University College of London [London] (UCL), University of New South Wales [Sydney] (UNSW), Westmead Hospital [Sydney], University Hospital Erlangen [Germany], Universitätsklinikum Erlangen [Erlangen], University of Bonn Medical Centre [Bonn], Radboud university [Nijmegen], Rady Children's Hospital, Belfast City Hospital, Royal Belfast Hospital for Sick Children, University of Iowa [Iowa City], University of Göttingen - Georg-August-Universität Göttingen, Approches génétiques intégrées et nouvelles thérapies pour les maladies rares (INTEGRARE), Université d'Évry-Val-d'Essonne (UEVE)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay-Généthon, Généthon, Saint-Luc University Hospital [Brussels, Belgium], Hospital Universitario 12 de Octubre [Madrid], Université de Paris (UP), Institut de Myologie, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Association française contre les myopathies (AFM-Téléthon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), King's College Hospital (KCH), MRC Centre for Neuromuscular Diseases [London, UK], University Hospital Erlangen = Uniklinikum Erlangen, Radboud University [Nijmegen], Radboud University Medical Center [Nijmegen], Gillette Children's Specialty Healthcare [St Paul], Georg-August-University = Georg-August-Universität Göttingen, Ruhr-Universität Bochum [Bochum], Université Paris Cité (UPCité), Unité de Biologie Fonctionnelle et Adaptative (BFA (UMR_8251 / U1133)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
| المصدر: | Acta Neuropathologica, 141, 431-453 Acta Neuropathologica, Vol. 141, no. 3, p. 431-453 (2021) Acta Neuropathologica, 141, 3, pp. 431-453 Acta Neuropathologica Acta Neuropathologica, Springer Verlag, 2021, 141 (3), pp.431-453. ⟨10.1007/s00401-020-02257-0⟩ Acta Neuropathologica, 2021, 141 (3), pp.431-453. ⟨10.1007/s00401-020-02257-0⟩ |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Adult, Male, 0301 basic medicine, Weakness, Adolescent, Myotonia Congenita, Mutation, Missense, Other Research Donders Center for Medical Neuroscience [Radboudumc 0], Extraocular muscles, Sensory disorders Donders Center for Medical Neuroscience [Radboudumc 12], Pathology and Forensic Medicine, Young Adult, 03 medical and health sciences, Cellular and Molecular Neuroscience, 0302 clinical medicine, Humans, Medicine, Missense mutation, Connectin, Child, Myopathy, Aged, Muscle contracture, Genetics, Phenocopy, Original Paper, biology, business.industry, Infant, [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology, Middle Aged, Disorders of movement Donders Center for Medical Neuroscience [Radboudumc 3], medicine.disease, Congenital myopathy, 3. Good health, 030104 developmental biology, medicine.anatomical_structure, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Child, Preschool, biology.protein, Female, Titin, Neurology (clinical), medicine.symptom, business, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, 030217 neurology & neurosurgery |
| الوصف: | Mutations in the sarcomeric protein titin, encoded byTTN, are emerging as a common cause of myopathies. The diagnosis of aTTN-related myopathy is, however, often not straightforward due to clinico-pathological overlap with other myopathies and the prevalence ofTTNvariants in control populations. Here, we present a combined clinico-pathological, genetic and biophysical approach to the diagnosis ofTTN-related myopathies and the pathogenicity ascertainment ofTTNmissense variants. We identified 30 patients with a primaryTTN-related congenital myopathy (CM) and two truncating variants, or one truncating and one missenseTTNvariant, or homozygous for oneTTNmissense variant. We found that TTN-related myopathies show considerable overlap with other myopathies but are strongly suggested by a combination of certain clinico-pathological features. Presentation was typically at birth with the clinical course characterized by variable progression of weakness, contractures, scoliosis and respiratory symptoms but sparing of extraocular muscles. Cardiac involvement depended on the variant position. Our biophysical analyses demonstrated that missense mutations associated with CMs are strongly destabilizing and exert their effect when expressed on a truncating background or in homozygosity. We hypothesise that destabilizingTTNmissense mutations phenocopy truncating variants and are a key pathogenic feature of recessive titinopathies that might be amenable to therapeutic intervention. |
| وصف الملف: | application/pdf |
| تدمد: | 0001-6322 1432-0533 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a50b0834b2069a16869cd3b6e7cc432fTest http://hdl.handle.net/2066/231686Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....a50b0834b2069a16869cd3b6e7cc432f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00016322 14320533 |
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