TSLP and colorectal carcinoma: Therefore, we have selected seven SNPs; rs10043985 (located in the promoter region) and rs2289276 (located in 5′-UTR region) in TSLP; rs36139698, rs36177645, rs36133495 in exon region of TSLPR; and rs1053496 and rs12516866 in promoter of IL-7R to investigate the association between polymorphisms/expression levels of these genes and CRC risk in Saudi population.