For the membrane transporters OATP1B2 [36], the rat ortholog of human OATP1B1 and OATP1B3, and NTCP, their immunoreactivity in adenomas and adenocarcinomas of the rat colon did not differ from that of normal colonic epithelial cells (Figure 4C). The gene discussed is SLC10A1; the disease is adenocarcinoma.