The CPTAC data showed that MPP7 total protein expression in primary ovarian cancer, clear cell RCC (ccRCC), colon cancer, GBM, HNSC, UCEC, pancreatic adenocarcinoma (PAAD), and hepatocellular carcinoma (HCC) was significantly lower compared to healthy tissues (P < 0.001; Fig. 1C). This evidence concerns the gene MPP7 and ovarian cancer.