VEGFR-1 mediated an expression change of Snail protein in MCF-7 and MDA-MB-231 cells.

<p>Western blot analysis of Snail in nuclear extracts of MCF-7 and MDA-MB-231 cells, in which VEGFR-1 was activated by PlGF or down-regulated by shRNA. The bar graphs show the relative expression of proteins among each treatment groups. Lamin B1 was used as a loading control for nuclear lysate. Data are presented as average ± s.d. for three independent experiments. *<i>P</i><0.05.