CTDSP1 and non-small cell lung carcinoma: These results are fundamentally different from our recent data obtained for non-small-cell lung cancer (NSCLC), in which the CTDSP1/2/L genes were often inactivated and all of them demonstrated tumor suppressive activity in vitro, leading to a significant slowdown of growth and senescence of the A549 lung adenocarcinoma cell line [21].