Agüera E, Castilla S, Luque E, Jimena I, Ruz-Caracuel I, Leiva-Cepas F, Peña J. Denervated muscle extract promotes recovery of muscle atrophy through activation of satellite cells. An experimental study.
JOURNAL OF SPORT AND HEALTH SCIENCE 2019;
8:23-31. [PMID:
30719380 PMCID:
PMC6349589 DOI:
10.1016/j.jshs.2017.05.007]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 01/31/2017] [Accepted: 03/26/2017] [Indexed: 06/09/2023]
Abstract
PURPOSE
The objective of the present study was to determine whether a denervated muscle extract (DmEx) could stimulate satellite cell response in denervated muscle.
METHODS
Wistar rats were divided into 4 groups: normal rats, normal rats treated with DmEx, denervated rats, and denervated rats treated with DmEx. The soleus muscles were examined using immunohistochemical techniques for proliferating cell nuclear antigen, desmin, and myogenic differentiation antigen (MyoD), and electron microscopy was used for analysis of the satellite cells.
RESULTS
The results indicate that while denervation causes activation of satellite cells, DmEx also induces myogenic differentiation of cells localized in the interstitial space and the formation of new muscle fibers. Although DmEx had a similar effect in nature on innervated and denervated muscles, this response was of greater magnitude in denervated vs. intact muscles.
CONCLUSION
Our study shows that treatment of denervated rats with DmEx potentiates the myogenic response in atrophic denervated muscles.
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