1. Derivation and Characterization of Immortalized Human Muscle Satellite Cell Clones from Muscular Dystrophy Patients and Healthy Individuals
- Author
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Bénédicte Chazaud, Jimmy Massenet, F. Jeffrey Dilworth, Cyril Gitiaux, Mélanie Magnan, Isabelle Desguerre, Arnaud Hubas, Patrick Nusbaum, and Sylvain Cuvellier
- Subjects
Male ,musculoskeletal diseases ,Duchenne muscular dystrophy ,Satellite Cells, Skeletal Muscle ,Clone (cell biology) ,immortalization ,Article ,03 medical and health sciences ,0302 clinical medicine ,congenital myopathies ,medicine ,Animals ,Humans ,Myocyte ,Telomerase reverse transcriptase ,Muscular dystrophy ,Child ,human muscle stem cells ,lcsh:QH301-705.5 ,030304 developmental biology ,0303 health sciences ,biology ,Infant ,Skeletal muscle ,Cell Differentiation ,General Medicine ,medicine.disease ,Cell biology ,Muscular Dystrophy, Duchenne ,Disease Models, Animal ,medicine.anatomical_structure ,lcsh:Biology (General) ,Case-Control Studies ,Child, Preschool ,biology.protein ,Female ,Stem cell ,Dystrophin ,030217 neurology & neurosurgery ,degenerative myopathies - Abstract
In Duchenne muscular dystrophy (DMD) patients, absence of dystrophin causes muscle wasting by impacting both the myofiber integrity and the properties of muscle stem cells (MuSCs). Investigation of DMD encompasses the use of MuSCs issued from human skeletal muscle. However, DMD-derived MuSC usage is restricted by the limited number of divisions that human MuSCs can undertake in vitro before losing their myogenic characteristics and by the scarcity of human material available from DMD muscle. To overcome these limitations, immortalization of MuSCs appears as a strategy. Here, we used CDK4/hTERT expression in primary MuSCs and we derived MuSC clones from a series of clinically and genetically characterized patients, including eight DMD patients with various mutations, four congenital muscular dystrophies and three age-matched control muscles. Immortalized cultures were sorted into single cells and expanded as clones into homogeneous populations. Myogenic characteristics and differentiation potential were tested for each clone. Finally, we screened various promoters to identify the preferred gene regulatory unit that should be used to ensure stable expression in the human MuSC clones. The 38 clonal immortalized myogenic cell clones provide a large collection of controls and DMD clones with various genetic defects and are available to the academic community.
- Published
- 2020