Figure 1. MEG3 expression is downregulated in CRC cell lines. (A) The expression of MEG3 in normal human colonic epithelial cells and colorectal cancer cells SW480 was detected using RT-qPCR; (B) The expression of MEG3 was detected by RT-qPCR in the overexpression group and the no-load group; (C) The OD values of the overexpression group and the no-load group at 450 nm were detected using CCK8; (D) Western blotting detected the relative expression of Ki-67 in the expression group and the no-load group. **P<0.01.