...the effectiveness of the BH3 mimetic ABT-737 as a radiosensitizer using K-ras mutant non-small cell lung cancer (NSCLC) cells and a KrasG12D:p53fl/fl mouse (KP mouse) model....In the KP mouse lung cancer model, cotreatment with ABT-737 and radiation-induced significant tumor regression....These findings supported the radiosensitizing activity of ABT-737 in preclinical models, and suggested that clinical trials using this strategy may be beneficial in K-ras mutant NSCLC.