RAD51 and non-small cell lung carcinoma: In order to outline the role of Rad51-dependent homologous recombination (HR) in the overall rejoining process of Dsb in NSCLC cell lines, rejoining kinetics were assessed in A549 and H460 over a 4 h period following exposure of cells to 30 Gy at 0 h (initial induction), 1 h (fast rejoining fraction) and 4 h (slow rejoining fraction) after transfection with As-ODN specific for Rad51.