RBP5 and rectum adenocarcinoma: Likewise, RBP5 exhibited significant downregulation in BLCA, CESC, CHOL, COAD, KICH, KIRP, LIHC, LUSC, PRAD, rectum adenocarcinoma (READ), THCA, and UCEC, but was upregulated in esophageal carcinoma (ESCA) and HNSC (Figure 1E).