ANXA5 and glioblastoma: When the primary GBM cells (GBM12, 28 and 43) with transient overexpression of miR-138 were stained with Annexin V-PI, apoptotic cell populations were significantly increased (39.3 ± 0.4%, 31.1 ± 1.8%, 22.3 ± 0.4%, respectively) compared to the GBM cells transfected with miR-Ctrl (20.0 ± 2.4%, 13.2 ± 5.0%, 6.5 ± 0.2%, respectively) (Fig. 2D).