Figure 1.

Time- and dose-dependent responses of cell viability after WEV and WEV+NP treatment. MDA-MB-231 cells were treated with WEV (closed triangles) or WEV+NP (open circles) at concentrations of 1, 5, 10, 20, 50, 100 and 1,000 ng/ml (A) for different incubation times (1, 2, 6, 12, 24 and 48 hr) (B). (C) Human PBMCs were treated with WEV or WEV+NP at concentrations of 1, 5, 10, 20, 50, 100 and 1,000 ng/mL for 12 hr. The experiments were performed in triplicate, and the results are expressed as the mean percentage of viable cells ± SEM.