miR-214-5p, miR-7144-3p and miR-9830-5p enhanced GC apoptosis. (A–C) The apoptosis rate of GCs affected by mimics of mir214-5p, mir7144-3p, and mir9830-5p, respectively, was examined by the Annexin V-FITC/PI staining assay using flow cytometry; (D–F) The apoptosis rate of GCs affected by inhibitors of mir214-5p, mir7144-3p, and mir9830-5p, respectively, was examined by the Annexin V-FITC/PI staining assay using flow cytometry; (G–I) The protein level of cleaved CASP3 was affected by inhibitors of mir214-5p, mir7144-3p, and mir9830-5p, respectively, as shown by Western blot analysis. Data are expressed as the mean ± SEM of three experiments. * p < 0.05, ** p < 0.01.