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Multiple sclerosis association study with the TENR-IL2-IL21 region in a Spanish population

AuthorsFedetz, María; Ndagire, D.; Fernández, Óscar; Leyva, Laura; Guerrero, Miguel; Arnal, Carmen; Lucas, Miguel; Izquierdo, Guillermo; Delgado, Concepción; Alcina, Antonio; Matesanz, F.
Issue Date2009
PublisherBlackwell Publishing
CitationTissue Antigens 74(3): 244- 247 (2009)
AbstractPolymorphisms from the TENR-IL2-IL21 block in the 4q27 chromosome were recently associated with type 1 diabetes, celiac disease, rheumatoid arthritis and psoriasis. We undertook this study to investigate the potential role of polymorphisms rs3136534, rs6822844 and rs2069762 (-330 T/G IL2) in multiple sclerosis (MS) (805 patients of Spanish Caucasian origin and 952 health controls). We did not find evidence for association with any single nucleotide polymorphisms (SNPs) tested. Allele and genotype frequencies of the SNPs, which were studied, were similar in DRB1*15-positive or DRB1*15-negative patients. After stratification of MS patients by clinical course, a weak association was observed with rs2069762 G allele and haplotype bearing this allele with secondary progressive MS, although these cases represent 22% of the MS cases. Our results did not show major influence of TENR-IL2-IL21 locus on susceptibility or disease progression in MS. However, we could not exclude completely the effect in MS for this region. Additional studies, using much larger sample sizes and analysis of additional polymorphisms in the gene and its flanking region, will be required to ascertain their contributions to MS susceptibility.
Identifiersdoi: 10.1111/j.1399-0039.2009.01298.x
issn: 0001-2815
e-issn: 1399-0039
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