Since EMT is often partial and NSCLC cell lines display intermediate/hybrid states with mixed epithelial and mesenchymal characteristics [26], we checked the expression of additional genes coding for the guidance proteins, semaphorin 3C (SEMA3C) and semaphorin 3F (SEMA3F), and one of their common receptors, neuropilin-2 (NRP2), because of their involvement in lung cancer progression and EMT [27, 28]. The gene discussed is SEMA3F; the disease is non-small cell lung carcinoma.