Redox Control of Skeletal Muscle Regeneration

Abstract : Skeletal muscle shows high plasticity in response to external demand. Moreover, adult skeletal muscle is capable of complete regeneration after injury, due to the properties of muscle stem cells (MuSCs), the satellite cells, which follow a tightly regulated myogenic program to generate both new myofibers and new MuSCs for further needs. Although reactive oxygen species (ROS) and reactive nitrogen species (RNS) have long been associated with skeletal muscle physiology, their implication in the cell and molecular processes at work during muscle regeneration is more recent. This review focuses on redox regulation during skeletal muscle regeneration. An overview of the basics of ROS/RNS and antioxidant chemistry and biology occurring in skeletal muscle is first provided. Then, the comprehensive knowledge on redox regulation of MuSCs and their surrounding cell partners (macrophages, endothelial cells) during skeletal muscle regeneration is presented in normal muscle and in specific physiological (exercise-induced muscle damage, aging) and pathological (muscular dystrophies) contexts. Recent advances in the comprehension of these processes has led to the development of therapeutic assays using antioxidant supplementation, which result in inconsistent efficiency, underlying the need for new tools that are aimed at precisely deciphering and targeting ROS networks. This review should provide an overall insight of the redox regulation of skeletal muscle regeneration while highlighting the limits of the use of nonspecific antioxidants to improve muscle function.
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Antioxidants and Redox Signaling, Mary Ann Liebert, 2017, 27 (5), pp.276-310. 〈10.1089/ars.2016.6782〉
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Emmeran Le Moal, Vincent Pialoux, Gaëtan Juban, Carole Groussard, Hassane Zouhal, et al.. Redox Control of Skeletal Muscle Regeneration. Antioxidants and Redox Signaling, Mary Ann Liebert, 2017, 27 (5), pp.276-310. 〈10.1089/ars.2016.6782〉. 〈hal-01585981〉

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