Radiosensitizing effects of AZD4547 on NSCLC cell lines grown in vitro. The radiosensitizing effects of AZD4547 on (A) NCI-H1581, (B) NCI-H226, (C) NCI-H358, (D) NCI-H520, (E) NCI-3122, (F) A549, (G) NCI-H2228, (H) BeasB2, (I) HTE cells. Cell cultures were exposed to 0.1 μM of AZD4547 for 1 h before irradiation and maintained in the medium after irradiation. Colony-forming efficiency was determined 12–20 days later and survival curves were generated after normalizing for AZD4547 cytotoxicity. Points, mean; bars, SEM (n=3).