NRP1 and non-small cell lung carcinoma: Although further studies are required to elucidate the molecules that interact with NRP-1 and to verify the effect of anti-NRP-1 antibody on repopulated tumors and in the improvement of tumor control after radiotherapy in NSCLC, NRP-1-targeted investigation on repopulated tumor after radiotherapy might open a road to lead the possibility of a tumor control that survived radiotherapy.