2021
DOI: 10.1186/s13287-021-02530-3
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Hypoxia preconditioned bone marrow-derived mesenchymal stromal/stem cells enhance myoblast fusion and skeletal muscle regeneration

Abstract: Background The skeletal muscle reconstruction occurs thanks to unipotent stem cells, i.e., satellite cells. The satellite cells remain quiescent and localized between myofiber sarcolemma and basal lamina. They are activated in response to muscle injury, proliferate, differentiate into myoblasts, and recreate myofibers. The stem and progenitor cells support skeletal muscle regeneration, which could be disturbed by extensive damage, sarcopenia, cachexia, or genetic diseases like dystrophy. Many l… Show more

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Cited by 35 publications
(24 citation statements)
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“…Transplantation of hypoxia-preconditioned BMSCs into the damaged muscles in in vivo models improved the cell engraftment performance via the formation of new vessels. Among the molecules fundamental for better engraftment and angiogenesis, SDF-1 and VEGF-A secreted by the MSCs in question have been identified [4]. Fang Wang et al reported that 5% hypoxia exposure increased the differentiation of adipose tissue-derived MSCs into smooth muscle cells.…”
Section: Hypoxia and Stem Cellsmentioning
confidence: 99%
“…Transplantation of hypoxia-preconditioned BMSCs into the damaged muscles in in vivo models improved the cell engraftment performance via the formation of new vessels. Among the molecules fundamental for better engraftment and angiogenesis, SDF-1 and VEGF-A secreted by the MSCs in question have been identified [4]. Fang Wang et al reported that 5% hypoxia exposure increased the differentiation of adipose tissue-derived MSCs into smooth muscle cells.…”
Section: Hypoxia and Stem Cellsmentioning
confidence: 99%
“…In cocultures they rarely fused with myoblasts. We previously showed that BMSC fusion with myoblasts is possible - hypoxic condition increased this process [ 53 ]. In the present study, we documented that the presence of miR151 or miR5100 transfected mouse BMSCs also increased human myoblast fusion.…”
Section: Discussionmentioning
confidence: 99%
“…However, a previous study demonstrated that lifelong reduction of satellite cells neither accelerated nor exacerbated sarcopenia and that satellite cells did not contribute to the maintenance of muscle size or fiber type composition during aging, but that their loss may contribute to age-related muscle fibrosis [ 48 ]. On the other hand, recent accumulating evidence indicates that bone marrow- (BM-) derived cells participate in skeletal muscle regeneration in several animal models [ 13 15 ]. In recent experiments, we found that transplantation of BM cells from GFP + green mice to senescence-accelerated mouse prone 10 (SAMP10) mice provided direct evidence that BM-derived MuSCs also contribute to aged muscle regeneration (unpublished data), suggesting that the beneficial muscle effects of rPLF-1 are likely attributable, at least in part, to amelioration of BM-derived muscle stem cell regeneration capacity and muscle dysfunction in our experimental model.…”
Section: Discussionmentioning
confidence: 99%