Figure 1

Effects of DBME on cell proliferation and viability of A549, MCF-7, HeLa, HepG2, U87 and WI-38 cells. Cells were cultured in 96-well plates and treated with the indicated concentrations of DBME (0–200 μg/ml) for 48 h. Cell proliferation and viability was determined with WST-1 assay. Data are expressed as mean±S.D. (N=6). *P<0.05, **P<0.01 and ***P<0.001 versus 0 μg/ml.