SLCO1B3 and malignant colon neoplasm: The results of mRNA quantification showed that, similar to those observed in colon cancer tissues, Ct-OATP1B3 mRNA was highly expressed in LS180 and HCT116 cells, and that the mRNA level in LS180 cells was comparable with that of Lt-OATP1B3 in pooled hepatocytes (Table 3, Figure 6A).