A2780 (human ovarian carcinoma) HCT-116 p53+/+ and HCT-116 p53−/− (human colon carcinoma) HeLa (human cervix adenocarcinoma) SK-BR-3 (human breast adenocarcinoma) HL-60 (human promyelocytic leukemia) HT-29 (human colon adenocarcinoma) Jurkat (human T cells lymphocyte leukemia) MCF-7 (human breast adenocarcinoma). The gene discussed is TP53; the disease is acute promyelocytic leukemia.