PRIMA1 and ovarian cancer: ABCC1/MRP1 is one of the genes with the highest correlation to PRIMA‐1 resistance in ovarian cancer cells according to data available through the Cancer Dependency Map (DepMap) (Fig EV1A) (Basu et al, 2013; Seashore‐Ludlow et al, 2015; Rees et al, 2016) consistent with our NCI database analysis (Bykov et al, 2002a).