TY - EJOU AU - Amirzargar, Ali Akbar AU - Naroueynejad, Mehrnaz AU - Khosravi, Farideh AU - Dianat, Saied AU - Rezaei, Nima AU - Mytilineos, Joannis AU - Nikbin, Behrouz TI - Cytokine single nucleotide polymorphisms in Iranian populations T2 - European Cytokine Network PY - 2008 VL - 19 IS - 2 SN - 1952-4005 AB - Cytokines are important immunomodulatory molecules involved in immune responses against microorganisms; they also have an important role in the setting of immune system disorders. Cytokine single nucleotide polymorphisms have been extensively studied in different, normal populations as well as in association with disease. Cytokine gene polymorphisms are potentially important as genetic predictors of disease suscepti-bility, clinical outcome, and as a tool for anthropological studies. In this study, samples have been collected from 455 healthy individuals located in different regions of Iran (Tehran, Yazd, Sistan and Balochistan). Allele and genotype frequencies of cytokine SNP, including: IL-1α, IL-1β, IL-1R, IL-1RA, IL-2, IL-4, IL-4RA, IL-6, IL-10, IL-12, TNF-α, TGF-β and IFN-γ were investigated, using the PCR-SSP method. Allele frequencies in Tehran and Yazd populations were similar, except for TGF-b. Allele frequencies in Sistani & Baloch populations were similar at all positions, except for IL-β at position of -511 and IFN-γ genes at position UTR5644; there were some differences in allele frequencies comparing these populations with the Yazd population, including: IL-4, IL-6, IL-10, TGF-β and TNF-α. Although some significant differences were observed for some cytokines, it seems that the cytokine gene polymorphism profile of the Iranian population is similar to that of Caucasians, particularly the Italian population. KW - cytokine gene KW - Iran KW - polymorphisms DO - 10.1684/ecn.2008.0122