The BET bromodomain inhibitor IBET-151 reduced glioblastoma cellular ATP levels with potency similar to that we previously reported (IC50 = 4.8 μM in A-172 cells, 9.3 μM in T98G cells, and 0.764 μM in U87MG cells) (12,13). The gene discussed is DNER; the disease is glioblastoma.