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BMC Med Genet. 2013 May 15;14:52. doi: 10.1186/1471-2350-14-52.

Evaluation of the IL2/IL21, IL2RA and IL2RB genetic variants influence on the endogenous non-anterior uveitis genetic predisposition.

Author information

1
Instituto de Parasitología y Biomedicina López-Neyra, IPBLN, CSIC, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento, 18100 Armilla, Granada, Spain. mccenit@ipb.csic.es

Abstract

BACKGROUND:

Recently, different genetic variants located within the IL2/IL21 genetic region as well as within both IL2RA and IL2RB loci have been associated to multiple autoimmune disorders. We aimed to investigate for the first time the potential influence of the IL2/IL21, IL2RA and IL2RB most associated polymorphisms with autoimmunity on the endogenous non-anterior uveitis genetic predisposition.

METHODS:

A total of 196 patients with endogenous non-anterior uveitis and 760 healthy controls, all of them from Caucasian population, were included in the current study. The IL2/IL21 (rs2069762, rs6822844 and rs907715), IL2RA (2104286, rs11594656 and rs12722495) and IL2RB (rs743777) genetic variants were genotyped using TaqMan® allelic discrimination assays.

RESULTS:

A statistically significant difference was found for the rs6822844 (IL2/IL21 region) minor allele frequency in the group of uveitis patients compared with controls (P(-value)=0.02, OR=0.64 CI 95%=0.43-0.94) although the significance was lost after multiple testing correction. Furthermore, no evidence of association with uveitis was detected for the analyzed genetic variants of the IL2RA or IL2RB loci.

CONCLUSION:

Our results indicate that analyzed IL2/IL21, IL2RA and IL2RB polymorphisms do not seem to play a significant role on the non-anterior uveitis genetic predisposition although further studies are needed in order to clear up the influence of these loci on the non-anterior uveitis susceptibility.

PMID:
23676143
PMCID:
PMC3658927
DOI:
10.1186/1471-2350-14-52
[Indexed for MEDLINE]
Free PMC Article
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