As expected, the examination results were obtained that lncRNA-ZFAS1 and DDX21 showed significantly increased in CRC cells including LOVO, CACO2, HT29, SW48, HCT116, SW620, and SW480 compared with that in the normal control HIEC cells assayed by RT-PCR, qPCR method (Figure 1B, 1C). This evidence concerns the gene DDX21 and colorectal carcinoma.