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Association of TLR3 gene polymorphism with IgG subclass deficiency and the severity in patients with aspirin-intolerant asthma

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dc.contributor.authorKim, SH-
dc.contributor.authorYang, EM-
dc.contributor.authorJung, HM-
dc.contributor.authorLe Pham, D-
dc.contributor.authorChoi, HN-
dc.contributor.authorBan, GY-
dc.contributor.authorPark, HS-
dc.date.accessioned2018-06-28T04:05:48Z-
dc.date.available2018-06-28T04:05:48Z-
dc.date.issued2016-
dc.identifier.issn2288-0402-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/15418-
dc.description.abstractPurpose: Toll-like receptor 3 (TLR3) recognizes to viral double-stranded RNA and is involved in antiviral defenses. A probable role of TLR3 gene variants in the pathogenesis of aspirin-intolerant asthma (AIA) has been suggested. AIA patients present more frequent asthma exacerbations in which respiratory viral infections could be an exacerbating factor. IgG subclass deficiency was commonly present with bronchial asthma. Based on previous findings, we investigated whether TLR3 variants could affect IgG3 subclass deficiency in AIA.
Methods: We enrolled 279 AIA patients, 403 aspirin-tolerant asthma (ATA) patients, and 315 normal healthy controls (NC) in this study. TLR3 polymorphism at the promoter region -299698G>T was genotyped. The serum levels of IgG subclasses were determined by the single radial immunodiffusion method. Expressions of IgG3 and TLR3 on Epstein-Barr virus transformed-B cells isolated from asthmatic patients were evaluated by flow cytometry to investigate B-cell functions.
Results: The TLR3 -299698 T allele was significantly associated with severity and IgG3 deficiency in the AIA group (P=0.044 and P=0.010, respectively), but not in the ATA group. IgG3 expression on B cells from asthmatics with IgG3 deficiency was significantly lower compared to those without (P=0.025). There was a positive correlation between IgG3 expression levels on B cells and serum IgG3 levels (r2=0.434, P=0.002).
Conclusion: These results suggest that the TLR3 -299698G>T polymorphism may be associated with IgG3 subclass deficiency and severity in AIA.
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dc.language.isoko-
dc.titleAssociation of TLR3 gene polymorphism with IgG subclass deficiency and the severity in patients with aspirin-intolerant asthma-
dc.title.alternative아스피린 과민성 천식 환자에서 TLR3 유전자 다형성에 따른 IgG 아형 결핍 및 천식 중증도의 연관성 연구-
dc.typeArticle-
dc.subject.keywordAsthma-
dc.subject.keywordGenetic polymorphism-
dc.subject.keywordImmunoglobulin G-
dc.subject.keywordImmunodeficiency-
dc.subject.keywordToll-like receptor 3-
dc.contributor.affiliatedAuthor김, 승현-
dc.contributor.affiliatedAuthor반, 가영-
dc.contributor.affiliatedAuthor박, 해심-
dc.type.localJournal Papers-
dc.identifier.doi10.4168/aard.2016.4.4.264-
dc.citation.titleAllergy asthma & respiratory disease-
dc.citation.volume4-
dc.citation.number4-
dc.citation.date2016-
dc.citation.startPage264-
dc.citation.endPage270-
dc.identifier.bibliographicCitationAllergy asthma & respiratory disease, 4(4). : 264-270, 2016-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.identifier.eissn2288-0410-
dc.relation.journalidJ022880402-
Appears in Collections:
Journal Papers > Hospital > Clinical Trial Center
Journal Papers > School of Medicine / Graduate School of Medicine > Allergy
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