Figure 3. The VSMC phenotypic switch was suppressed by microRNA-30a-3p. (A) PDGF-BB stimulation promoted VSMC phenotypic switching from contractile conditions to synthetic conditions, and microRNA-30a-3p upregulation suppressed this process. (B–D) MicroRNA-30a-3p suppressed VSMC phenotypic protein (SM-α-actin and calponin) switching. **=0.005, ***=0.001.