Consistent with human data, SLC26A9 was expressed at low levels in the colon mucosal cell line NCM460 but upregulated in all CRC cell lines at both the mRNA and protein levels, with the lowest expression observed in SW48 cells and the highest expression observed in COLO 201 cells (Fig. 2A, B). This evidence concerns the gene SLC26A9 and colorectal carcinoma.