Representative western blotting analysis of total protein lysates of primary human VSMCs transduced with lentiviral vectors encoding shRNAs of HOXA4 and TEAD1/3/4. Quantification of alpha smooth muscle actin and calponin protein levels is expressed as the means ± SEM of three independent experiments. *P<0.05, **P<0.01, by ANOVA with Sidak's correction. 