Meis1 regulates cell cycle in NSCLC cancer cell. (A) After RNAi transfected in A549 cells (left panel) or SPC-A1 (right panel), EdU was added into cells and cultured for 8 h before collection for EdU analysis (mean ± SD, n=3; ***, P<0.001); (B) A549 cells were transfected with RNAi as indicated. After 72 h, cells were collected and then lysed for western blotting analysis. Specific antibodies were used as indicated. Representative images from three independent experiments were shown; (C) cells were prepared described in (A) and then subjected for immunofluorescence. Phosphorylated histone H3 was stained in red and nuclei were counterstained with DAPI (Blue). Representative images from three parallel experiments were shown (mean ± SD, n=4; **, P<0.01). NSCLC, non-small-cell lung cancer; RNAi, RNA interference; SD, standard error of the mean.