Knock down of CCNT2 is able to inhibit the growth and invasion of gastric cancer cells. (A) Western blot analysis of CCNT2 protein expression in HGC-27 and MGC-803 cells that were transfected with negative control or CCNT2 siRNAs. (B) CCK-8 proliferation assay performed at day 0, 1, 2, 3, 4 post-transfection of HGC-27 and MGC-803 cells. Data are expressed as the mean ± standard deviation (n=3). Transwell Matrigel invasion assay of (C) HGC-27 and (D) MGC-803 cells. Data are expressed as the mean ± standard deviation (n=3). *P<0.05; **P<0.01; ***P<0.001 vs. scrambled control. CCK-8, Cell Counting Kit-8; CCNT2; cyclin T2; con, control; siRNA, small-interfering RNA.