ATM and glioblastoma: Although the well-addressed role for ATM in triggering cell senescence resides in promoting DNA damage response (DDR) following a genotoxic insult, we showed ATM involvement in Axitinib-driven senescence of HUVECs [9].We therefore wondered if GBM cells could interfere with Axitinib-dependent activation of ATM in cocultured HUVECs.