Fig. 4

Representative images of smooth muscle cell marker expression at 14 days after injection. a mRNA expression levels of α-SMA, desmin, and SM-MHC were measured by qRT-PCR. b Protein expression levels of desmin and SM-MHC were detected by Western blot. c Immunofluorescence images of α-SMA in penis tissues. Green represents α-SMA. Cell nuclei were stained with DAPI (blue). *P < 0.05, **P < 0.01 compared with the control group