AGO2 and neoplasm: A previous study of breast cancer also found that the HIF-1/2α-dependent EGFR-AGO2 interaction under hypoxic stress probably triggers AGO2-Y393 phosphorylation to inhibit the binding of Dicer to AGO2, which disrupts the formation of the RISC-loading complex required for pre-miRNA processing of tumor-suppressive miRNAs [80].