PMAIP1 and ovarian cancer: We further examined cisplatin-induced expression levels of p53, p73, p21waf1/cip1, NOXA and Bax in several human ovarian cancer cell lines with different p53 status including A2780s (p53 WT), SKOV3 (p53-/-), OVCAR-3 (harboring mutant p53 R248Q) and A2780cp (containing p53 wild-type gene sequence but showing loss of p53 function).