Figure 5From: Variations in Mre11/Rad50/Nbs1 status and DNA damage-induced S-phase arrest in the cell lines of the NCI60 panel Comparison of the ability of NCI60 cell lines to arrest in S-phase when incubated with SN38. Cells were incubated with 0-30 ng/ml SN38 for 24 h then analyzed for cell cycle distribution by flow cytometry. The highlighted cell lines demonstrate little if any S arrest at the highest concentration.Back to article page