AGO2 and neoplasm: Simultaneously, the expression levels of miR-19b were also positively correlated with the acetylation levels of AGO2-K720-Ac in pathological stages (Stage I, spearman’s rho = 0.5667, P < 0.0001; Stage II, spearman’s rho = 0.2457, P = 0.054; Stage III/IV, spearman’s rho = 0.36, P = 0.0122) and tumor grades (Grade 1, spearman’s rho = 0.4385, P = 0.0029; Grade 2, spearman’s rho = 0.4107, P = 0.0003; Grade 3, spearman’s rho = 0.4966, P = 0.0016) (Fig. 7e).