FIGURE 7.

Cos increased ROS generation in 769-P cells. (A) ROS levels. (B) ROS levels measured as fluorescent intensity. (C) ROS of cells pretreated with NAC prior to Cos exposure for 24 h. The histograms indicate the change of fluorescent intensity in Cos treated cells. (D) Cells were pretreated with NAC (5 mM) for 2 h and then treated with Cos for 24 h. Fluorescent intensity was detected using flow cytometry. All results are presented as mean ± SD (n = 3). *p < 0.05; **p < 0.01, vs the control.