miR-613 inhibits cell proliferation, invasion and migration in gastric cancer cells. (A) Reverse-transcription quantitative polymerase chain reaction was used to detect the transfection efficiency of miR-613 mimics in SGC-7901 cells. (B) The proliferation of SGC-7901 cells after transfection with miR-613 or miR-NC was determined by an MTT assay. (C and D) The cell migration and invasion, respectively, were determined in SGC-7901 cells after transfection with miR-613 or miR-NC by Transwell assays. *P<0.05, **P<0.01. miR-NC, negative control microRNA; OD, optical density.