NTN1 and squamous cell carcinoma: detected clinical samples from 92 patients with NSCLC (45 adenocarcinomas and 47 squamous cell carcinomas) and found that upregulated NTN1 expression was detected both in adenocarcinomas and squamous cell cancers, and NTN1 expression was more frequent and more intense in adenocarcinomas than in squamous cell carcinomas.