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Skeletal muscle stem cells in comfort and stress

Abstract : Investigations on developmental and regenerative myogenesis have led to major advances in decrypting stem cell properties and potential, as well as their interactions within the evolving niche. As a consequence, regenerative myogenesis has provided a forum to investigate intrinsic regulators of stem cell properties as well as extrinsic factors, including stromal cells, during normal growth and following injury and disease. Here we review some of the latest advances in the field that have exposed fundamental processes including regulation of stress following trauma and ageing, senescence, DNA damage control and modes of symmetric and asymmetric cell divisions. Recent studies have begun to explore the nature of the niche that is distinct in different muscle groups, and that is altered from prenatal to postnatal stages, and during ageing. We also discuss heterogeneities among muscle stem cells and how distinct properties within the quiescent and proliferating cell states might impact on homoeostasis and regeneration. Interestingly, cellular quiescence, which was thought to be a passive cell state, is regulated by multiple mechanisms, many of which are deregulated in various contexts including ageing. These and other factors including metabolic activity and genetic background can impact on the efficiency of muscle regeneration.
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Contributor : Brendan Evano <>
Submitted on : Monday, January 11, 2021 - 10:50:09 AM
Last modification on : Monday, March 29, 2021 - 2:43:02 PM
Long-term archiving on: : Monday, April 12, 2021 - 6:38:22 PM

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Distributed under a Creative Commons Attribution 4.0 International License

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Brendan Evano, Shahragim Tajbakhsh. Skeletal muscle stem cells in comfort and stress. npj Regenerative Medicine, 2018, 3 (1), pp.24. ⟨10.1038/s41536-018-0062-3⟩. ⟨pasteur-03105580⟩

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