Scientists at UT Southwestern Medical Center have eliminated non-small cell lung (NSCL) cancer in mice by using an investigative drug called BEZ235 in combination with low-dose radiation. In a study appearing in the recent issue of Cancer Research, UT Southwestern scientists observed that if they administered BEZ235 before they damaged the DNA of tumor cells with otherwise nontoxic radiation, the drug blocked the pro-survival actions of a protein called PI3K, which normally springs into action to keep tumor cells alive while they repair DNA damage........