Research Paper Volume 4, Issue 1 pp 40—48

Age-related resistance of skeletal muscle-derived progenitor cells to SPARC may explain a shift from myogenesis to adipogenesis

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Figure 7. Itga5 mRNA and protein expression in young and old rat SMPCs. (A) qPCR analysis of Itga5 and Itgb1 expression in SMPCs from young and old rats 3 days after plating. Graphed data are expressed as mean ± SEM (Itga5: young; n = 4, old; n = 6, Itgb1: n = 4, respectively). *p < 0.05 vs. young. (B) Typical immunostaining of ITGA5 in SMPCs from young and old rats 3 days after plating. Nuclei were counterstained with Hoechst 33258. White and black arrowheads indicate intensely ITGA5-positive and slightly ITGA5 -positive cells, respectively. Scale bar = 100 μm. (C) Quantitative analysis of relative fluorescence of ITGA5 in young and old rats SMPCs 3 days after plating. Graphed data are mean ± SEM (n = 3, respectively). *p < 0.05 vs. young rats.