期刊
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
卷 4, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fcell.2016.00091
关键词
muscle stem cells; satellite cells; p38 MAPKs; aging; epigenetics; tissue regeneration
资金
- MINECO, Spain [SAF2015-67369-R, MDM-2014-0370]
- AFM
- MDA
- Convenio UPF-CNIC
- E-RARE
- Fundacio Marato TV3
- Juan de la Cierva postdoctoral fellowship
Formation of skeletal muscle fibers (myogenesis) during development and after tissue injury in the adult constitutes an excellent paradigm to investigate the mechanisms whereby environmental cues control gene expression programs in muscle stem cells (satellite cells) by acting on transcriptional and epigenetic effectors. Here we will review the molecular mechanisms implicated in the transition of satellite cells throughout the distinct myogenic stages (i.e., activation from quiescence, proliferation, differentiation, and self renewal). We will also discuss recent findings on the causes underlying satellite cell functional decline with aging. In particular, our review will focus on the epigenetic changes underlying fate decisions and on how the p38 MAPK signaling pathway integrates the environmental signals at the chromatin to build up satellite cell adaptive responses during the process of muscle regeneration, and how these responses are altered in aging. A better comprehension of the signaling pathways connecting external and intrinsic factors will illuminate the path for improving muscle regeneration in the aged.
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