Effect of FoxM1 on cell cycle regulatory factors. The expression level of several known cell cycle regulatory factors, as measured by real-time RT-PCR (a) and Western blotting (b) in all four breast cancer cells. C, Control; D, DIM [25 or 40 (MDA-MB-231) μM]; T, Taxotere (1.0 nM); D+T, DIM + Taxotere. The experiments were repeated thrice. *, p < 0.05; **, p < 0.01 relatively control.