Figure 3From: Evaluation of poly (ADP-ribose) polymerase inhibitor ABT-888 combined with radiotherapy and temozolomide in glioblastomaCell survival curves of MGMT-unmethylated cell lines, LN18 and T98G, and MGMT-methylated cell lines, U87 and U251. Cells were exposed continuously to increasing concentrations of ABT-888 alone (0.002-10 μM). The data were fitted with the Hill equation (solid line) in order to estimate the EC50 values. Error bars indicate the standard error of at least three independent experiments.Back to article page