Objective To investigate the influence of RNA interference targeting c-Fos gene on the phenotypic transition and migration of vascular smooth muscle cells(VSMCs).Methods VSMCs were transfected with siRNA targeting c-Fos gene by liposome.Effects of c-Fos siRNA on mRNA expression of c-Fos and α-SM-actin were examined by RT-PCR while the levels of α-SM-actin,bFGF and ET-1 were determined by Western blot.We observed the differentiation of VSMCs by immunofluorescence and examined the migration ability of VSMCs w...