Rejuvenating stem cells to restore muscle regeneration in aging [version 1; referees: 3 approved]

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dc.contributor.author	Bengal, Eyal
dc.contributor.author	Perdiguero, Eusebio, 1968-
dc.contributor.author	Serrano, Antonio L.
dc.contributor.author	Muñoz Cánoves, Pura, 1962-
dc.date	2017
dc.identifier.citation	Bengal E, Perdiguero E, Serrano AL, Muñoz Cánoves P. Rejuvenating stem cells to restore muscle regeneration in aging [version 1; referees: 3 approved]. F1000Research. 6(F1000 Faculty Rev): 76
dc.identifier.citation	2046-1402
dc.identifier.citation	http://dx.doi.org/10.12688/f1000research.9846.1
dc.identifier.uri	http://hdl.handle.net/10230/32107
dc.format	application/pdf
dc.language.iso	eng
dc.publisher	F1000Research
dc.relation	F1000Research. 6(F1000 Faculty Rev): 76
dc.rights	Copyright: © 2017 Bengal E et al. This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Data associated with the article are available under the terms of the Creative Commons Zero "No rights reserved" data waiver (CC0 1.0 Public domain dedication).
dc.rights	https://creativecommons.org/licenses/by/4.0/
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Rejuvenating stem cells to restore muscle regeneration in aging [version 1; referees: 3 approved]
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.description.abstract	Adult muscle stem cells, originally called satellite cells, are essential for muscle repair and regeneration throughout life. Besides a gradual loss of mass and function, muscle aging is characterized by a decline in the repair capacity, which blunts muscle recovery after injury in elderly individuals. A major effort has been dedicated in recent years to deciphering the causes of satellite cell dysfunction in aging animals, with the ultimate goal of rejuvenating old satellite cells and improving muscle function in elderly people. This review focuses on the recently identified network of cell-intrinsic and -extrinsic factors and processes contributing to the decline of satellite cells in old animals. Some studies suggest that aging-related satellite-cell decay is mostly caused by age-associated extrinsic environmental changes that could be reversed by a “youthful environment”. Others propose a central role for cell-intrinsic mechanisms, some of which are not reversed by environmental changes. We believe that these proposals, far from being antagonistic, are complementary and that both extrinsic and intrinsic factors contribute to muscle stem cell dysfunction during aging-related regenerative decline. The low regenerative potential of old satellite cells may reflect the accumulation of deleterious changes during the life of the cell; some of these changes may be inherent (intrinsic) while others result from the systemic and local environment (extrinsic). The present challenge is to rejuvenate aged satellite cells that have undergone reversible changes to provide a possible approach to improving muscle repair in the elderly.
dc.description.abstract	Work in the authors’ laboratory was supported by Israel Science Foundation 711/16, SAF2015-67369-R, FISPI13/025, CIBER (2015-2/06, Pl1400061), AFM, MDA, DPP-E, E-RARE, and Fundació La Marató de TV3. DCEXS/UPF is supported by the “María de Maeztu" Program for Units of Excellence (MDM-2014-0370). The CNIC is supported by MINECO and the Pro-CNIC Foundation and is a Severo Ochoa Center of Excellence (SEV-2015-0505).

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