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Pinto MJ, Fromes Y, Ackermann-Bonan I, Leturcq F, Verebi C, Romero NB, Stojkovic T. Muscle MRI as a Diagnostic Challenge in Emery-Dreifuss Muscular Dystrophy. J Neuromuscul Dis 2022; 9:649-654. [DOI: 10.3233/jnd-220823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Maria João Pinto
- Department of Neurology, Centro Hospitalar Universitário de São João, E.P.E., Porto, Portugal
- Department of Clinical Neurosciences and Mental Health, Faculty of Medicine, University of Porto, Portugal
| | - Yves Fromes
- Nuclear Magnetic Resonance Laboratory, Neuromuscular Investigation Center, Institute of Myology, Pitié-Salpêtrière Hospital, Paris, France
- Nuclear Magnetic Resonance Laboratory, CEA, DRF, IBFJ, Molecular Imaging Research Center, Paris, France
| | - Isabelle Ackermann-Bonan
- Nuclear Magnetic Resonance Laboratory, Neuromuscular Investigation Center, Institute of Myology, Pitié-Salpêtrière Hospital, Paris, France
- Nuclear Magnetic Resonance Laboratory, CEA, DRF, IBFJ, Molecular Imaging Research Center, Paris, France
| | - France Leturcq
- Department of Genomic Medicine and Systemic Diseases, APHP, University of Paris, Cochin Hospital, Paris, France
| | - Camille Verebi
- Department of Genomic Medicine and Systemic Diseases, APHP, University of Paris, Cochin Hospital, Paris, France
| | - Norma B. Romero
- Reference Center for Neuromuscular Disorders, APHP, Myology Institute, Pitié-Salpêtrière Hospital, Paris, France
- Centre de Recherche en Myologie, GHPitié-Salpêtrière, Sorbonne Université-InsermUMRS974, Paris, France
- Neuromuscular Morphology Unit, Institute of Myology, Pitié-Salpêtrière Hospital, Paris, France
| | - Tanya Stojkovic
- Reference Center for Neuromuscular Disorders, APHP, Myology Institute, Pitié-Salpêtrière Hospital, Paris, France
- Centre de Recherche en Myologie, GHPitié-Salpêtrière, Sorbonne Université-InsermUMRS974, Paris, France
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Skeletal and Cardiac Muscle Disorders Caused by Mutations in Genes Encoding Intermediate Filament Proteins. Int J Mol Sci 2021; 22:ijms22084256. [PMID: 33923914 PMCID: PMC8073371 DOI: 10.3390/ijms22084256] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/12/2021] [Accepted: 04/15/2021] [Indexed: 02/08/2023] Open
Abstract
Intermediate filaments are major components of the cytoskeleton. Desmin and synemin, cytoplasmic intermediate filament proteins and A-type lamins, nuclear intermediate filament proteins, play key roles in skeletal and cardiac muscle. Desmin, encoded by the DES gene (OMIM *125660) and A-type lamins by the LMNA gene (OMIM *150330), have been involved in striated muscle disorders. Diseases include desmin-related myopathy and cardiomyopathy (desminopathy), which can be manifested with dilated, restrictive, hypertrophic, arrhythmogenic, or even left ventricular non-compaction cardiomyopathy, Emery–Dreifuss Muscular Dystrophy (EDMD2 and EDMD3, due to LMNA mutations), LMNA-related congenital Muscular Dystrophy (L-CMD) and LMNA-linked dilated cardiomyopathy with conduction system defects (CMD1A). Recently, mutations in synemin (SYNM gene, OMIM *606087) have been linked to cardiomyopathy. This review will summarize clinical and molecular aspects of desmin-, lamin- and synemin-related striated muscle disorders with focus on LMNA and DES-associated clinical entities and will suggest pathogenetic hypotheses based on the interplay of desmin and lamin A/C. In healthy muscle, such interplay is responsible for the involvement of this network in mechanosignaling, nuclear positioning and mitochondrial homeostasis, while in disease it is disturbed, leading to myocyte death and activation of inflammation and the associated secretome alterations.
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