RAD51 and non-small cell lung carcinoma: According to the data from above high throughput analysis, we mainly focused on studying RAD51, a key homologous recombination repair (HRR) factor involved in forming a nucleoprotein filament by polymerizing onto single-stranded DNA at the processed DNA breaks via its strand transferase activity [14], as a potential target of (−)-Guaiol in NSCLC cells.