PCAT1 and cancer: Surprisingly, in this current study, we found that oncogenic lncRNAs such as CCAT1, CCAT2, CRNDE, FTX, HOTAIR, HOTTIP, HULC, MALAT1, PCAT1, PVT1, and UCA1 were either not detected or were detected at a very low rate in both non-cancer individuals and CRC patients.