Fig. 2: Downregulation of ARIH2 expression inhibits cell proliferation and regulates the cell cycle progression of GC cells.

A Western blot and quantitative PCR assays were performed to characterize the expression of ARIH2 in the control and ARIH2-knockdown MKN45 and SGC7901 cells. B MTT assays were performed to test the proliferation of the control and ARIH2-knockdown MKN45 and SGC7901 cells. C Plate cloning assays were performed to examine the proliferation of the control and ARIH2-knockdown MKN45 and SGC7901 cells. D BrdU incorporation assays were performed to detect the amount of DNA synthesis in the control and ARIH2-knockdown MKN45 and SGC7901 cells. Data were analyzed using two-tailed Student’s t tests. Scale bar = 50 μm. E, F The cell cycle was analyzed in MKN45 and SGC7901 cells by flow cytometry, and cell cycle-related proteins were detected by Western blot assays. All data were expressed as the mean ± SD. Student’s t test was performed to analyze significance. *P < 0.05, **P < 0.01, ***P < 0.001.