PCAT6 and colorectal carcinoma: To further investigate the effect and the mechanism of PCAT6 in CRC, the expression levels of PCAT6 in seven CRC cell lines, HCT116, HT‐29, SW620, SW480, DLD‐1, RKO, and LoVo, as well as a normal colon fibroblast, CCD‐112CoN cells were determined by real‐time PCR assays.