E2F8 and glioblastoma: After treatment, the expression levels of E2F8 and E2F2 increased by 190% and 118, respectively, and the expression levels of STUB1 and YWHAQ increased by approximately 110% between GBM BVZ-responsive and non-responsive subtypes (p > 0.05, BVZ (n = 3) vs. Non (n = 12)).