Figure 3. miR-126-overexpressing MDSCs increases smooth muscle contents and improves vascular function in rats. (A) Immunofluorescence images of α-SMA in the penis tissues. (B) H & E staining for morphologic detection. (C) mRNA levels of CD31, vWF and VEGF. (D) Protein expression of α-SMA, CD31, vWF and VEGF in rats. Data are shown as the means ± SD. *P < 0.05, **P < 0.01.