PRRX1 and neoplasm: In contrast, in a recent report depicting six master regulators (AEBP1, HOPX, PRRX1, SNAI2, ZEB1, ZEB2) of the TCGA “mesenchymal” subtype, they employed a network-based strategy to uncover the molecular mechanism underlying the discrete mesenchymal subtype in whole tumor tissues of serous OC [44].