This included two immortalized breast epithelial, normal-like cell lines (HBL-100 and MCF-10A), and a panel of human breast cancers with either WT p53 (BT-20, ZR75-1, MCF-7, DU4475), or mutant p53 (BT-474, T47D, SK-BR3, MDA-MB-435, HCC2157, MDA-MB-468, HCC-1500, HCC-1187, HCC-38). This evidence concerns the gene TP53 and breast carcinoma.