METTL3 and gastric cancer: Moreover, we performed western blot analysis and established that the overexpression of miR-193b-5p significantly inhibited the expression of METTL3 in gastric cancer cells at different protein levels (Figure 6H). Besides, as illustrated in Figure 6I, we further confirmed that the silencing of BLACAT2 genes suppressed METTL3 expression in AGS and MGC803 cells.