MiR-135a promotes proliferation of bladder cancer cells by inhibiting PHLPP2 and FOXO1. A. The expression level of PHLPP2 or FOXO1 in miR-135a-inhibitor transfected bladder cells that were transfected with PHLPP2- or FOXO1-siRNA, measured by Western blotting assays; α-Tubulin served as the loading control. B. The growth rates in PHLPP2- or FOXO-silenced cells, measured by MTT assays. C. Representative micrographs (left) and quantifications (right) of crystal violet stained colonies formed by the indicated cells. D. Representative images (left) and quantifications (right) of colonies formed by the indicated cells determined by anchorage-independent growth assay. Bars represent the mean ± SD from three independent experiments. *P < 0.05.