CLCA1 and colorectal cancer: Elevated expression levels of hCLCA1 repressed the Wnt/β-catenin signaling as well as the epithelial-mesenchymal transition (EMT) process in colorectal cancer cells, suggesting that hCLCA1 acted as a tumor suppressor in colorectal cancer by suppressing the Wnt/β-catenin signaling pathway and EMT process.71