IL-7R α polymorphisms in 60 Iranian multiple sclerosis patients
Mojgan Ahmadzadeh Raji1, Alireza Khosravi, Mohammad Hossein Sanati
1Department of Nano-Bio-Technology, School of New Sciences and Technologies, University of Tehran, Tehran, Iran.
Iranian Journal of Neurology
|November 20, 2013
Summary
This study investigated the Interleukin-7 receptor alpha (IL-7R α) chain gene in Iranian multiple sclerosis (MS) patients. While no mutations were found, eight single nucleotide polymorphisms (SNPs) were identified, with no significant association to MS in this cohort.
Area of Science:
- Genetics
- Immunology
- Neurology
Background:
- Multiple sclerosis (MS) is a chronic inflammatory and neurodegenerative disease.
- MS predominantly affects young adults, with a higher incidence in women.
Purpose of the Study:
- To investigate the Interleukin-7 receptor alpha (IL-7R α) chain gene in Iranian patients with multiple sclerosis.
- To identify sequence variations within the promoter, exon 2, and exon 4 regions of the IL-7R α gene.
Main Methods:
- A molecular study involving 60 MS patients and 60 healthy controls.
- DNA extraction from whole blood followed by Single Strand Conformation Polymorphism (SSCP) screening.
- Confirmation of sequence variations using direct sequencing (ABI 3730XL).
Main Results:
- Eight single nucleotide polymorphisms (SNPs) were identified across the promoter, exon 2, and exon 4 regions.
- Two missense variations (rs1494558 and rs1494555) and one silent substitution were observed.
- No significant association was found between the analyzed SNP genotypes and multiple sclerosis in the studied population.
Conclusions:
- The study identified several SNPs within the IL-7R α gene in Iranian MS patients.
- These identified SNPs did not show a significant association with multiple sclerosis in the investigated cohort.
- Further research is needed to elucidate the functional impact of these IL-7R α gene SNPs on MS pathogenesis.
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