Figure 5

Roc-A does not protect cancer cell lines with nonfunctional p53. p53-mutated or -deficient cancer cell lines (a) and p53 WT cell lines (b) were treated with solvent (DMSO) or different concentrations of Etoposide in the presence of increasing amounts of Roc-A or solvent (DMSO) as indicated. Cell death was determined by DNA fragmentation after 24 or 48 h of treatment as indicated. Results are averages of three independent experiments. Error bars (S.D.) are shown