Genetic impact of a butyrophilin-like 2 (BTNL2) gene variation on specific IgE responsiveness to dermatophagoides farinae (Der f) in Japanese

Satoshi Konno, Daisuke Takahashi, Nobuyuki Hizawa, Takeshi Hattori, Ayumu Takahashi, Akira Isada, Yukiko Maeda, Shau Ku Huang, Masaharu Nishimura

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Background: Dermatophagoides farinae (Der f) is one of the most frequently implicated allergens in several allergic diseases. Several genome-wide screens have identified a linkage between chromosome 6p21 and mite-specific IgE responsiveness. Butyrophilin-like 2 (BTNL2) is a member of the immunoglobulin superfamily and, on the basis of its homology to B7-1, has been implicated as a costimulatory molecule involved in T-cell activation. BTNL2 resides in the HLA region on chromosome 6p21, and significant associations between BTNL2 gene polymorphisms and several inflammatory diseases have been reported. Objective: The aim of this study was to examine whether BTNL2 gene polymorphisms are associated with specific IgE responses to Der f. Methods: Three single nucleotide polymorphisms (SNPs), including 2 coding SNPs and 1 intron SNP, were studied. One of the coding SNPs was the rs2076530 A > G, which has a functional consequence. A total of 863 unrelated Japanese subjects (447 positive and 416 negative for IgE to Der f) were recruited for a case-control study. Results: Controlling for gender, age, smoking, and the presence of asthma, multiple logistic regression analyses showed that homozygosity of the rs2076530 A allele, which has been reported to be a risk allele for sarcoidosis, was associated with a risk of sensitization towards Der f (Odds ratio; 1.55, p = 0.0060). Conclusions: Although an association which may be due to the linkage disequilibrium with other genes in 6p 21 needs to be ruled out, the present findings suggest that the BTNL2 gene might be one of the candidate genes that is responsible for the pathogenesis of Der f-specific IgE responsiveness.

Original languageEnglish
Pages (from-to)29-35
Number of pages7
JournalAllergology International
Volume58
Issue number1
DOIs
Publication statusPublished - Jan 1 2009
Externally publishedYes

Fingerprint

Dermatophagoides farinae
Immunoglobulin E
Single Nucleotide Polymorphism
Genes
Chromosomes
Alleles
Mites
Linkage Disequilibrium
Sarcoidosis
Allergens
Introns
Case-Control Studies
Immunoglobulins
Asthma
Logistic Models
Smoking
Odds Ratio
Regression Analysis
Butyrophilins
Genome

Keywords

  • BTNL2
  • Dermatophagoides farinae (Der f)
  • Specific IgE

ASJC Scopus subject areas

  • Immunology and Allergy

Cite this

Genetic impact of a butyrophilin-like 2 (BTNL2) gene variation on specific IgE responsiveness to dermatophagoides farinae (Der f) in Japanese. / Konno, Satoshi; Takahashi, Daisuke; Hizawa, Nobuyuki; Hattori, Takeshi; Takahashi, Ayumu; Isada, Akira; Maeda, Yukiko; Huang, Shau Ku; Nishimura, Masaharu.

In: Allergology International, Vol. 58, No. 1, 01.01.2009, p. 29-35.

Research output: Contribution to journalArticle

Konno, Satoshi ; Takahashi, Daisuke ; Hizawa, Nobuyuki ; Hattori, Takeshi ; Takahashi, Ayumu ; Isada, Akira ; Maeda, Yukiko ; Huang, Shau Ku ; Nishimura, Masaharu. / Genetic impact of a butyrophilin-like 2 (BTNL2) gene variation on specific IgE responsiveness to dermatophagoides farinae (Der f) in Japanese. In: Allergology International. 2009 ; Vol. 58, No. 1. pp. 29-35.
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abstract = "Background: Dermatophagoides farinae (Der f) is one of the most frequently implicated allergens in several allergic diseases. Several genome-wide screens have identified a linkage between chromosome 6p21 and mite-specific IgE responsiveness. Butyrophilin-like 2 (BTNL2) is a member of the immunoglobulin superfamily and, on the basis of its homology to B7-1, has been implicated as a costimulatory molecule involved in T-cell activation. BTNL2 resides in the HLA region on chromosome 6p21, and significant associations between BTNL2 gene polymorphisms and several inflammatory diseases have been reported. Objective: The aim of this study was to examine whether BTNL2 gene polymorphisms are associated with specific IgE responses to Der f. Methods: Three single nucleotide polymorphisms (SNPs), including 2 coding SNPs and 1 intron SNP, were studied. One of the coding SNPs was the rs2076530 A > G, which has a functional consequence. A total of 863 unrelated Japanese subjects (447 positive and 416 negative for IgE to Der f) were recruited for a case-control study. Results: Controlling for gender, age, smoking, and the presence of asthma, multiple logistic regression analyses showed that homozygosity of the rs2076530 A allele, which has been reported to be a risk allele for sarcoidosis, was associated with a risk of sensitization towards Der f (Odds ratio; 1.55, p = 0.0060). Conclusions: Although an association which may be due to the linkage disequilibrium with other genes in 6p 21 needs to be ruled out, the present findings suggest that the BTNL2 gene might be one of the candidate genes that is responsible for the pathogenesis of Der f-specific IgE responsiveness.",
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T1 - Genetic impact of a butyrophilin-like 2 (BTNL2) gene variation on specific IgE responsiveness to dermatophagoides farinae (Der f) in Japanese

AU - Konno, Satoshi

AU - Takahashi, Daisuke

AU - Hizawa, Nobuyuki

AU - Hattori, Takeshi

AU - Takahashi, Ayumu

AU - Isada, Akira

AU - Maeda, Yukiko

AU - Huang, Shau Ku

AU - Nishimura, Masaharu

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AB - Background: Dermatophagoides farinae (Der f) is one of the most frequently implicated allergens in several allergic diseases. Several genome-wide screens have identified a linkage between chromosome 6p21 and mite-specific IgE responsiveness. Butyrophilin-like 2 (BTNL2) is a member of the immunoglobulin superfamily and, on the basis of its homology to B7-1, has been implicated as a costimulatory molecule involved in T-cell activation. BTNL2 resides in the HLA region on chromosome 6p21, and significant associations between BTNL2 gene polymorphisms and several inflammatory diseases have been reported. Objective: The aim of this study was to examine whether BTNL2 gene polymorphisms are associated with specific IgE responses to Der f. Methods: Three single nucleotide polymorphisms (SNPs), including 2 coding SNPs and 1 intron SNP, were studied. One of the coding SNPs was the rs2076530 A > G, which has a functional consequence. A total of 863 unrelated Japanese subjects (447 positive and 416 negative for IgE to Der f) were recruited for a case-control study. Results: Controlling for gender, age, smoking, and the presence of asthma, multiple logistic regression analyses showed that homozygosity of the rs2076530 A allele, which has been reported to be a risk allele for sarcoidosis, was associated with a risk of sensitization towards Der f (Odds ratio; 1.55, p = 0.0060). Conclusions: Although an association which may be due to the linkage disequilibrium with other genes in 6p 21 needs to be ruled out, the present findings suggest that the BTNL2 gene might be one of the candidate genes that is responsible for the pathogenesis of Der f-specific IgE responsiveness.

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