SLC26A9 and colorectal carcinoma: Furthermore, we analyzed the tissue chips of 190 CRC tissues and 168 adjacent tissues by IHC, analyzed the relationship between SLC26A9 expression and patient survival, calculated the protein expression of SLC26A9 in the tumor (Fig. 1B), and classified the patient population according to the total immunohistochemistry score: SLC26A9 high and SLC26A9 low.