Figure 2From: Small-molecule survivin inhibitor YM155 enhances radiosensitization in esophageal squamous cell carcinoma by the abrogation of G2 checkpoint and suppression of homologous recombination repairYM155 sensitizes ESCC cells to irradiation. A, ESCC cell lines Eca109 and TE13 were seeded in 96-well plates in triplicate and treated with various concentrations of YM155 for 24 or 48 h. Cell viability was determined by CCK8 assay. * and #, P < 0.05 versus control. B, Cell survival curve was established by clonogenic survival assay. The cells were treated with 5 nM or 10 nM YM155 and ionizing radiation as illustrated and harvested after incubation for 10–14 d. Each bar represented mean ± SE from 3 independent experiments. * and #, P < 0.05 versus control; ** and ##, P < 0.01 versus control.Back to article page