Pathogenic variants in the myosin chaperone UNC-45B cause progressive myopathy with eccentric cores
| Autor: | Serena Governali, Jonathan Baets, Sarah Djeddi, Willem De Ridder, Reza Maroofian, Ying Hu, Stephanie Efthymiou, Xavière Lornage, Stefan Conijn, Vincenzo Salpietro, Aritoshi Iida, Satoru Noguchi, Norma B. Romero, Magdalena Mroczek, Carola Hedberg-Oldfors, Tumtip Sangruchi, Julien Fauré, S. Neuhaus, Wojciech Pokrzywa, Ichizo Nishino, Ana Töpf, Kanokwan Boonyapisit, Fabiana Lubieniecki, Edoardo Malfatti, Jantima Tanboon, Chiara Fiorillo, Johann Böhm, Thorsten Hoppe, Véronique Bolduc, Soledad Monges, Niklas Darin, Coen A.C. Ottenheijm, Riley M. McCarty, Volker Straub, Anders Oldfors, Gabriella Di Rosa, A. Reghan Foley, Henry Houlden, John Rendu, Nancy L. Kuntz, Jocelyn Laporte, Carsten G. Bönnemann, Carl Elias Kutzner, Tanya Stojkovic, Katherine R. Chao, Iren Horkayne-Szakaly, Sandra Donkervoort |
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| Přispěvatelé: | National Institute of Neurological Disorders and Stroke [Bethesda] (NINDS), National Institutes of Health [Bethesda] (NIH), University of Cologne, 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), Centre Hospitalier Universitaire [Grenoble] (CHU), [GIN] Grenoble Institut des Neurosciences (GIN), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Grenoble Alpes (UGA), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), University of Antwerp (UA), Mahidol University [Bangkok], University College of London [London] (UCL), Newcastle University [Newcastle], Amsterdam UMC - Amsterdam University Medical Center, Northwestern University Feinberg School of Medicine, Hospital Nacional de Pediatría J.P. Garrahan, Broad Institute of MIT and Harvard (BROAD INSTITUTE), Harvard Medical School [Boston] (HMS)-Massachusetts Institute of Technology (MIT)-Massachusetts General Hospital [Boston], Hôpital Raymond Poincaré [AP-HP], National Center of Neurology and Psychiatry, University of Gothenburg (GU), National Center of Neurology and Psychiatry [Tokyo, Japan], University of Messina, Università degli studi di Genova = University of Genoa (UniGe), International Institute of Molecular and Cell Biology [Warsaw] (IIMCB), Centre de recherche en Myologie – U974 SU-INSERM, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), University of Arizona, univOAK, Archive ouverte, Physiology, ACS - Pulmonary hypertension & thrombosis |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Male muscle myosin Sarcomere Whole Exome Sequencing 0302 clinical medicine Myofibrils Loss of Function Mutation Myosin Missense mutation chaperone Transgenes Genetics (clinical) Caenorhabditis elegans C. elegans core myopathy myofibrillar sarcomere UNC-45 UNC45B Adolescent Adult Alleles Animals Caenorhabditis elegans Proteins Female Genetic Variation Humans Molecular Chaperones Muscle Skeletal Muscular Diseases Myosins Sarcomeres Sequence Analysis RNA Young Adult Mutation Missense biology Skeletal Cell biology Myosin binding [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] medicine.symptom Sequence Analysis macromolecular substances Article 03 medical and health sciences Exome Sequencing Genetics medicine [SDV.NEU] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] Myopathy fungi biology.organism_classification 030104 developmental biology Chaperone (protein) Mutation biology.protein RNA Human medicine Missense Myofibril 030217 neurology & neurosurgery |
| Zdroj: | The American journal of human genetics Am J Hum Genet Donkervoort, S, Kutzner, C E, Hu, Y, Lornage, X, Rendu, J, Stojkovic, T, Baets, J, Neuhaus, S B, Tanboon, J, Maroofian, R, Bolduc, V, Mroczek, M, Conijn, S, Kuntz, N L, Töpf, A, Monges, S, Lubieniecki, F, McCarty, R M, Chao, K R, Governali, S, Böhm, J, Boonyapisit, K, Malfatti, E, Sangruchi, T, Horkayne-Szakaly, I, Hedberg-Oldfors, C, Efthymiou, S, Noguchi, S, Djeddi, S, Iida, A, di Rosa, G, Fiorillo, C, Salpietro, V, Darin, N, Fauré, J, Houlden, H, Oldfors, A, Nishino, I, de Ridder, W, Straub, V, Pokrzywa, W, Laporte, J, Foley, A R, Romero, N B, Ottenheijm, C, Hoppe, T & Bönnemann, C G 2020, ' Pathogenic Variants in the Myosin Chaperone UNC-45B Cause Progressive Myopathy with Eccentric Cores ', American journal of human genetics, vol. 107, no. 6, pp. 1078-1095 . https://doi.org/10.1016/j.ajhg.2020.11.002 American Journal of Human Genetics American Journal of Human Genetics, 2020, 107 (6), pp.1078-1095. ⟨10.1016/j.ajhg.2020.11.002⟩ American journal of human genetics, 107(6), 1078-1095. Cell Press |
| ISSN: | 0002-9297 1537-6605 |
| DOI: | 10.1016/j.ajhg.2020.11.002 |
| Popis: | The myosin-directed chaperone UNC-45B is essential for sarcomeric organization and muscle function from Caenorhabditis elegans to humans. The pathological impact of UNC-45B in muscle disease remained elusive. We report ten individuals with bi-allelic variants in UNC45B who exhibit childhood-onset progressive muscle weakness. We identified a common UNC45B variant that acts as a complex hypomorph splice variant. Purified UNC-45B mutants showed changes in folding and solubility. In situ localization studies further demonstrated reduced expression of mutant UNC-45B in muscle combined with abnormal localization away from the A-band towards the Z-disk of the sarcomere. The physiological relevance of these observations was investigated in C. elegans by transgenic expression of conserved UNC-45 missense variants, which showed impaired myosin binding for one and defective muscle function for three. Together, our results demonstrate that UNC-45B impairment manifests as a chaperonopathy with progressive muscle pathology, which discovers the previously unknown conserved role of UNC-45B in myofibrillar organization. |
| Databáze: | OpenAIRE |
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