As shown in Figure 2C, significantly differentially expressed 11 lncRNAs were identified, of which 9 upregulated (AF079515, AC004854.4, CCAT1, UCA1, LOC100268168, RP4-669L17.4, HOTTIP, AK094859, and RP11-38P22.2) and 2 downregulated (RP11-434B12.1 and PHLDA3) in CRC patients with recurrence compared to those without recurrence. The gene discussed is UCA1; the disease is colorectal carcinoma.