CXXC4 and cancer: In the mechanism of the EZH2-mediated activation of Wnt/β-catenin signaling to promote carcinogenesis, EZH2, which acts as a transcriptional repressor, represses Wnt antagonists, including RAF1, CXXC4, AXIN2/betaTrCP and p53 [13, 28, 55, 59], by decreasing the acetylation of H3K27, thereby promoting the development of different types of cancers.