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Eftekharian MM, Sayad A, Omrani MD, Ghannad MS, Noroozi R, Mazdeh M, Mirfakhraie R, Movafagh A, Roshanaei G, Azimi T, Inoko H, Taheri M. Single nucleotide polymorphisms in the FOXP3 gene are associated with increased risk of relapsing-remitting multiple sclerosis. Hum Antibodies 2017; 24:85-90. [PMID: 27792007 DOI: 10.3233/hab-160299] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Although Multiple Sclerosis (MS) is an autoimmune multifactorial disease with unknown etiology, various genetic and environmental factors are known to contribute to the pathogenesis of the disease. OBJECTIVE Recent studies have confirmed that the suppressive function of regulatory T cells (T (reg)) is impaired in MS patients and that the FOXP3 gene is a crucial transcription factor in the regulation of CD4+CD25+FOXP3+ Treg cells. Polymorphisms in the promoter region of the FOXP3 gene may alter the gene expression level and, therefore, contribute to the disease susceptibility. METHODS The present study aimed to investigate the possible association between single nucleotide polymorphisms (SNPs) rs3761548 and rs2232365 in the FOXP3 gene and predisposition to MS. We conducted a case-control study on 410 patients with sporadic MS and 446 healthy controls. Genotyping was performed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). RESULTS Significant differences in distribution of both rs3761548 and rs2232365 A allele were found in MS patients in comparison to controls. Haplotype frequencies were also different among the studied groups. The A-A and C-G haplotype blocks showed a significant difference between case and controls. CONCLUSION we have provided further evidence for the association between genetic variations and haplotypes in FOXP3 and MS in Iranian population.
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Affiliation(s)
- Mohammad Mahdi Eftekharian
- Faculty of Paramedicine, Research Center for Molecular Medicine, Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Arezou Sayad
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mir Davood Omrani
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Shahid Labbafi Nejad Educational Hospital, Tehran, Iran
| | - Masoud Sabouri Ghannad
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Shahid Labbafi Nejad Educational Hospital, Tehran, Iran
| | - Rezvan Noroozi
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehrdokht Mazdeh
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Shahid Labbafi Nejad Educational Hospital, Tehran, Iran
| | - Reza Mirfakhraie
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abolfazl Movafagh
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ghodratollah Roshanaei
- Department of Neurology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Tahereh Azimi
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hidetoshi Inoko
- Modeling of No communicable diseases Research center, Department of Biostatistics and Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Taheri
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Shahid Labbafi Nejad Educational Hospital, Tehran, Iran
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