CD9 in control and injected with Sdf-1 skeletal muscles of wild type and
mice. (A) Quantitative RT-PCR analysis of mRNA encoding CD9 in wild type (wt) and Pax7
–/– mice muscles at day 7 of regeneration. (B) Immunolocalisation of CD9 in wt and Pax7
–/– mouse muscles at day 7 of regeneration. Nuclei, blue; adhesion proteins, green. Bar = 30 μm. (C) Level of CD9 protein during control (C) and Sdf-1-treated muscle regeneration of wt and Pax7
–/– mice at day 7. Error bars indicate standard deviation.