CA7 and colorectal carcinoma: In accordance with our findings, 7 of them, such as IL8, CHI3L1, CXCL1, CXCL2, MMP3, SLC7A5 and CA7, were found to be differentially expressed in CRC compared to normal tissue in previous microarray studies [5]–[6], [9]–[10], [12], [26]–[31].