Anticancer effects of sweet potato protein on human colorectal cancer cells

Figure 2 Anti-proliferative effect of sweet potato protein on human colorectal cancer SW480 cells. A: Effects of various concentrations of sweet potato protein (SPP) on SW480 cell proliferation. We observed dose-dependent inhibition by SPP. ^aP < 0.05 between groups; B: Effect of various treatment times with 40 μmol/L SPP on SW480 cell proliferation. Time-dependent inhibition was observed. ^aP < 0.05 vs control; C: Hoechst 33258 nuclear staining. SW480 cells were incubated in the absence or presence of various concentrations of SPP for 48 h, stained with Hoechst 33258 dye, and observed under a fluorescent microscope (magnification, × 400). Images are representative of at least two independent experiments, with similar results.