PCAT6 and colorectal carcinoma: In this study, we screened the six IR-lncRNAs (CATIP-AS1, GABPB1-AS1, PCAT6, MMP25-AS1, NSMCE1-DT and TSPEAR-AS2) from the public database and used them to construct a prognostic model for predicting the survival of CRC patients.