Figure 3. PTEN is the target gene of miR-21.

(A) miR-21 combined with PTEN 3′UTR; (B) the activity assay of dual luciferase reporter gene, activity assay of luciferase correlated with miR-21 inhibitors and PTEN 3′UTR WT/MT in gastric cancer cells, miR-21inhibited the luciferase activity of WT plasmid but it had no influence on that of MT plasmid). Note: *compared with the control group, P < 0.05).