As shown in Figure 2A, when compared with normal samples, the RPP40 mRNA expression of tumor samples were significantly upregulated in the tumor samples of 17 cancer types, including BLCA, BRCA, CESC, CHOL, COAD, ESCA, GBM, HNSC, KIRC, KIRP, LIHC, LUAD, LUSC, PRAD, READ, STAD, and UCEC according to the TCGA database. This evidence concerns the gene RPP40 and cancer.