Interleukin-2, Interferon-gamma Gene Polymorphisms in Recurrent Aphthous Stomatitis

Recurrent aphthous stomatitis (RAS) is the most common oral ulcerative inflammatory disease with unknown etiology. IL-2 and IFN-γ are secreted by Th1 cells and the elevated levels of them have been reported in RAS. Single nucleotide polymorphisms (SNPs) of IL-2 and IFN-γ genes could alter the cytoki...

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Main Authors: Shamsolmoulouk Najafi, Hila Yousefi, Mahsa Mohammadzadeh, Alireza Zare Bidoki, Elham Farhadi, Nima Rezaei
Format: Article
Language:English
Published: Karolinum Press 2017-09-01
Series:Prague Medical Report
Subjects:
Online Access:https://pmr.lf1.cuni.cz/118/2/0081/
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author Shamsolmoulouk Najafi
Hila Yousefi
Mahsa Mohammadzadeh
Alireza Zare Bidoki
Elham Farhadi
Nima Rezaei
author_facet Shamsolmoulouk Najafi
Hila Yousefi
Mahsa Mohammadzadeh
Alireza Zare Bidoki
Elham Farhadi
Nima Rezaei
author_sort Shamsolmoulouk Najafi
collection DOAJ
description Recurrent aphthous stomatitis (RAS) is the most common oral ulcerative inflammatory disease with unknown etiology. IL-2 and IFN-γ are secreted by Th1 cells and the elevated levels of them have been reported in RAS. Single nucleotide polymorphisms (SNPs) of IL-2 and IFN-γ genes could alter the cytokine production. The aim of this study was to investigate frequencies of IL-2 and IFN-γ alleles and genotypes in a group of patients with minor-RAS (MiRAS). PCR-SSP method used to type genomic DNA of 64 Iranian patients with MiRAS for IL-2 gene (G –330 T) and (G +166 T) and IFN-γ gene at position UTR5644 (A/T). Frequency of each allele and genotype was compared with control group. IL-2 +166 G allele was significantly lower among patients which was reflected in significantly decreased of GG genotype at this position, while IL-2 +166 T allele was significantly higher among patients, IL-2 GT genotype was also significantly higher in RAS patients. No significant differences were found regarding IL-2 –330 G/T allele frequencies, while IL-2 GT genotype at this position was significantly higher among patients and IL-2 –330 TT genotype was significantly lower among RAS patients. Although no significant differences were found in IFN-γ allele frequencies at UTR5644 (A/T), AT genotype at this position was significantly overrepresented among patients compared with controls. Results of this study suggest that certain SNPs of IL-2 and IFN-γ genes have association with predisposition of individuals to RAS. More studies in different ethnic groups are needed to confirm results of this study.
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spelling doaj.art-76f1ca8c2ba0461285440d03dfb9897d2022-12-22T01:28:19ZengKarolinum PressPrague Medical Report1214-69942336-29362017-09-011182818610.14712/23362936.2017.75422Interleukin-2, Interferon-gamma Gene Polymorphisms in Recurrent Aphthous StomatitisShamsolmoulouk NajafiHila YousefiMahsa MohammadzadehAlireza Zare BidokiElham FarhadiNima RezaeiRecurrent aphthous stomatitis (RAS) is the most common oral ulcerative inflammatory disease with unknown etiology. IL-2 and IFN-γ are secreted by Th1 cells and the elevated levels of them have been reported in RAS. Single nucleotide polymorphisms (SNPs) of IL-2 and IFN-γ genes could alter the cytokine production. The aim of this study was to investigate frequencies of IL-2 and IFN-γ alleles and genotypes in a group of patients with minor-RAS (MiRAS). PCR-SSP method used to type genomic DNA of 64 Iranian patients with MiRAS for IL-2 gene (G –330 T) and (G +166 T) and IFN-γ gene at position UTR5644 (A/T). Frequency of each allele and genotype was compared with control group. IL-2 +166 G allele was significantly lower among patients which was reflected in significantly decreased of GG genotype at this position, while IL-2 +166 T allele was significantly higher among patients, IL-2 GT genotype was also significantly higher in RAS patients. No significant differences were found regarding IL-2 –330 G/T allele frequencies, while IL-2 GT genotype at this position was significantly higher among patients and IL-2 –330 TT genotype was significantly lower among RAS patients. Although no significant differences were found in IFN-γ allele frequencies at UTR5644 (A/T), AT genotype at this position was significantly overrepresented among patients compared with controls. Results of this study suggest that certain SNPs of IL-2 and IFN-γ genes have association with predisposition of individuals to RAS. More studies in different ethnic groups are needed to confirm results of this study.https://pmr.lf1.cuni.cz/118/2/0081/Recurrent aphthous stomatitisInterleukin-2Interferon-gammaSingle nucleotide polymorphisms
spellingShingle Shamsolmoulouk Najafi
Hila Yousefi
Mahsa Mohammadzadeh
Alireza Zare Bidoki
Elham Farhadi
Nima Rezaei
Interleukin-2, Interferon-gamma Gene Polymorphisms in Recurrent Aphthous Stomatitis
Prague Medical Report
Recurrent aphthous stomatitis
Interleukin-2
Interferon-gamma
Single nucleotide polymorphisms
title Interleukin-2, Interferon-gamma Gene Polymorphisms in Recurrent Aphthous Stomatitis
title_full Interleukin-2, Interferon-gamma Gene Polymorphisms in Recurrent Aphthous Stomatitis
title_fullStr Interleukin-2, Interferon-gamma Gene Polymorphisms in Recurrent Aphthous Stomatitis
title_full_unstemmed Interleukin-2, Interferon-gamma Gene Polymorphisms in Recurrent Aphthous Stomatitis
title_short Interleukin-2, Interferon-gamma Gene Polymorphisms in Recurrent Aphthous Stomatitis
title_sort interleukin 2 interferon gamma gene polymorphisms in recurrent aphthous stomatitis
topic Recurrent aphthous stomatitis
Interleukin-2
Interferon-gamma
Single nucleotide polymorphisms
url https://pmr.lf1.cuni.cz/118/2/0081/
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