By reviewing the recent literature on cancer-associated lncRNAs, we selected 20 lncRNAs for further analysis, comprising lncRNA DLEU2, lncRNA UCA1, lncRNA CCAT2, lncRNA AC020978, lncRNA NNT-AS1, lncRNA SLC16A1-AS1, lncRNA SLC7A11-AS1, lncRNA SNHG3, lncRNA PITPNA-AS1, lncRNA PSMA3-AS1, lncRNA LINC00520, lncRNA HOXA11-AS, lncRNA GMDS-AS1, lncRNA SBF2-AS1, lncRNA SNHG16, lncRNA ZXF1, lncRNA FTX, lncRNA LUCAT1, lncRNA LINC00857, and lncRNA TM4SF1-AS1. The gene discussed is CCAT2; the disease is cancer.