The effects of si-MAC30 on expressions of EMT-related molecules in BC cells. MCF-7 and MDA-MB-231 cells were transfected with si-MAC30 or si-NC for 48 hours. A. The mRNA and protein levels of E-cadherin, N-cadherin and vimentin were determined by qRT-PCR and western blot, respectively. B. The mRNA and protein levels of Slug, Snail, Twist and ZEB1 were determined by qRT-PCR and western blot. All data are presented as the mean ± SEM, n=6. #P<0.05, ##P<0.01 vs. si-NC.