KLF4 and cancer: When combining TCGA and GTEx datasets to compensate for cancers with little to no normal samples, BLCA, BRCA, LUAD, OV, SKCM, UCEC, and UCS were identified as having significantly decreased KLF4 expression using GEPIA2 (Fig 1B, p < 0.001); while LAML and PAAD were significantly increased relative to their corresponding normal tissues (Fig 1C, p < 0.001).