IL7R and colorectal carcinoma: Consequently, the goals of this study are to determine the distribution of TSLP SNPs (rs10043985 and rs2289276), TSLPR SNPs (rs36139698, rs36177645, and rs36133495) and two others SNPs of IL-7R (rs12516866 and rs1053496) in CRC patients in Saudi population, and also to compare the expressions of TSLP, TSLPR, and IL-7R at both mRNA and protein levels in CRC tissues when compared to normal colon tissues.