Furthermore, the IC50 for mifepristone in Caov-3 carrying a mutant p53 gene is indistinguishable from that of the three wild type-carrying p53 cell lines (OV2008, OV2008/C13, and A2780), further supporting the notion that the p53 background is not relevant for the growth inhibition and the lethality triggered by mifepristone in ovarian cancer cells. The gene discussed is TP53; the disease is ovarian carcinoma.