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Neurol Res. 2017 Mar;39(3):217-222. doi: 10.1080/01616412.2016.1278108. Epub 2017 Jan 12.

Polymorphisms of RPS6KB1 and CD86 associates with susceptibility to multiple sclerosis in Iranian population.

Author information

1
a Department of Medical Genetics, School of Medicine , Tehran University of Medical Sciences , Tehran , Iran.
2
b Department of Clinical Biochemistry, School of Medicine , Kermanshah University of Medical Sciences , Kermanshsh , Iran.
3
c Department of Neurology, Sina Hospital , Tehran University of Medical Sciences , Tehran , Iran.

Abstract

OBJECTIVE:

 Multiple sclerosis (MS) is the most prevalent disorder of nervous system inflammation which involves demyelination of spinal cord; this process depends on both environmental and genetic susceptibility factors. In the present study, we examined the association between two SNPs in RPS6KB1 (rs180515) and CD86 (rs9282641) with MS in Iranian population. RPS6KB1gene encodes p70S6K1 protein which plays a key role in mTOR signaling pathway, while CD86 gene codes a membrane protein type I which belongs to immunoglobulin super family act on co-stimulation signaling pathway.

METHODS:

In this case-control study 130 patients with MS and 128 matched healthy controls were enrolled, genomic DNA was isolated and genotyping was performed using mismatched PCR-RFLP. The results were finally analyzed using SPSS.

RESULTS:

Our results showed significant difference in allelic frequency of SNP rs180515 among cases and controls (P = 0.004). For this variation, AA genotype was shown to have protective effect (P = 0.016 and OR = 0.6), while GG genotype was a susceptive genotype to MS (P = 0.04 and OR = 2.2). Allelic frequency of SNP rs9282641 also showed significant difference between cases and controls (P = 0.006). For this SNP, AG genotype had predisposing effect (P = 0.04, OR = 2.3), and GG genotype showed protective (P = 0.01, OR = 0.411).

CONCLUSION:

We successfully replicated the association of two novel SNPs introduced by a GWAS study, and MS in the Iranian population. This result can open ways for better understanding the mechanisms involved in MS.

KEYWORDS:

CD86 polymorphism; MS; PCR- RFLP; RPS6KB1 polymorphism; multiple sclerosis

PMID:
28079472
DOI:
10.1080/01616412.2016.1278108
[Indexed for MEDLINE]

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