FEV-mediated WNT2 transcription is involved in the progression of colorectal cancer via the Wnt signaling

Colorectal cancer (CRC) remains the third leading cause of cancer-related death worldwide. Here, we aimed to uncover the mechanism underlying the transcription factor fifth Ewing variant protein (FEV) in CRC. Transcriptome differential expression in human CRC and adjacent tissues was analyzed using GSE143939, GSE142279, GSE196006, and GSE200427 datasets, and the intersecting genes were screened by comparing them with the list of transcription factors in the Human TFBD database, followed by KEGG enrichment analysis. FEV expression was significantly reduced in CRC, and upregulation of FEV inhibited cell growth and tumor progression in CRC. The highly expressed genes in CRC were mainly enriched to the Wnt signaling pathway, and WNT2 is the core initiator of the Wnt signaling pathway. Two binding sites for FEV are present on the WNT2 promoter. WNT2 promoted the proliferation, migration, and invasion of CRC cells. FEV repressed WNT2 transcription by binding to the WNT2 promoter. Collectively, our data revealed that a novel FEV/WNT2 axis is critical for CRC progression. Strategies targeting this specific signaling axis might be developed to treat patients with CRC.