Among the seven family members of TRPC so far identified (TRPC1-7), we detected the expression of TRPC1, TRPC3, TRPC4, TRPC6 mRNA in 24 cases of NSCLC tissue; TRPC2, TRPC5 and TRPC7 mRNA were not detectable. This evidence concerns the gene TRPC7 and non-small cell lung carcinoma.