GRIK2 and cancer: Among them, CDK8 [25], COL4A1 [26], EEF1A1 [27], GRIK2 [28], NTN1 [29], RNF12 [30], SLC35A2 [31], SRGAP1 [32], TRPS1 [33], and UBR5 [34] have been identified as drivers of cancer progression in other studies, implying the potential tumor-suppressive role of miR-PC-2869.