TRPC6 and hepatocellular carcinoma: Specifically, both Huh7 and HepG2 human hepatoma cell lines express mRNAs for TRPC1, TRPC6, TRPV1, TRPV2, TRPV4, TRPM4, TRPM6, TRPM7, and TRPM8, whereas Huh7 alone expresses TRPV3 and TRPM5 [85].