Fig. 2
NHPI concentration-dependently decreases cell viability in BT-20, LoVo and HT-29 cells. a BT-20, LoVo, HT-29 and MCF-10A cells were treated with indicated concentrations of NHPI for 48 h. Cell viability was determined by MTS assay and represented with relative viability versus control. Results were presented as mean ± SD (n = 3). b IC50 values of NHPI on cell proliferation were shown with mean ± SD (n = 3). c The morphology of BT-20, LoVo, HT-29 and MCF-10A cells treated with NHPI at 5 and 10 μM for 24 h were observed under a phase-contrast microscope and photographed (100×)