Document Detail


The Effect of Syndecan-4 and Glypican-1 Expression on Age-Related Changes in Myogenic Satellite Cell Proliferation, Differentiation, and Fibroblast Growth Factor 2 Responsiveness.
MedLine Citation:
PMID:  24036479     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Satellite cells are multipotential stem cells responsible for muscle growth and regeneration. Satellite cell proliferation, differentiation, and responsiveness to fibroblast growth factor 2 (FGF2) is, in part, regulated by the heparan sulfate proteoglycans syndecan-4 and glypican-1. Syndecan-4 and glypican-1 expression declines with satellite cell age and may be associated with decreased satellite cell activity. The objective of the current study was to determine if overexpression of syndecan-4 and glypican-1 would increase proliferation, differentiation and FGF2 responsiveness in satellite cells isolated from pectoralis major muscle from 16-wk-old turkeys. Overexpression of syndecan-4 and glypican-1 did not have a significant effect on proliferation and differentiation in 1 d, 7 wk, and 16 wk satellite cells, and did not affect FGF2 responsiveness during proliferation. Expression of syndecan-4 and glypican-1 increased differentiation at 48h in 1 d, 7 wk, and 16 wk cells treated with FGF2. Expression of myogenic regulatory factors MyoD, myogenin, and MRF4 was affected by the overexpression of syndecan-4 and glypican-1. However, changes in myogenic regulatory factor expression did not have a significant effect on proliferation or differentiation. These data demonstrate that syndecan-4 and glypican-1 are likely not directly associated with the age related decrease in satellite cell activity.
Authors:
Laura B Harthan; Douglas C McFarland; Sandra G Velleman
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-9-12
Journal Detail:
Title:  Comparative biochemistry and physiology. Part A, Molecular & integrative physiology     Volume:  -     ISSN:  1531-4332     ISO Abbreviation:  Comp. Biochem. Physiol., Part A Mol. Integr. Physiol.     Publication Date:  2013 Sep 
Date Detail:
Created Date:  2013-9-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9806096     Medline TA:  Comp Biochem Physiol A Mol Integr Physiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013.
Affiliation:
Department of Animal Sciences, Ohio Agricultural Research and Development Center, The Ohio State University, 213 Gerlaugh Hall, 1680 Madison Avenue, Wooster, OH 44691, USA.
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