AKT1 and cancer: The differentially expressed genes identified from the hsa_circ_0076931-up-regulated H4 and U118-MG cells were mainly enriched in the TNF signaling pathway, phospholipase D signaling pathway, pathways in cancer, Wnt signaling pathway, PI3K-Akt signaling pathway, proteoglycans in cancer, Rap1 signaling pathway, Ras signaling pathway, chemokine signaling pathway, the cAMP signaling pathway, and cytokine–cytokine receptor interaction (Figure 5D,E).