GNRH1 and non-small cell lung carcinoma: To confirm that such an enhancement in cytotoxicity of LHRH-NLC-TAX system is associated with its binding to LHRH receptor, we incubated NSCLC cells with different concentrations of LHRH peptide (ligand for LHRH receptor) and then measured cytotoxicity of LHRH-NLC-TAX complex.