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HLA DRB1*15-DPB1*05 haplotype: a susceptible gene marker for isocyanate-induced occupational asthma?

Authors
 S.-H. Kim  ;  H.-B. Oh  ;  K.-W. Lee  ;  E.-S. Shin  ;  C.-W. Kim  ;  C.-S. Hong  ;  D.-H. Nahm  ;  H.-S. Park 
Citation
 ALLERGY, Vol.61(7) : 891-894, 2006 
Journal Title
 ALLERGY 
ISSN
 0105-4538 
Issue Date
2006
MeSH
Adult ; Asthma/chemically induced ; Asthma/genetics* ; Biomarkers ; Bronchial Provocation Tests ; Bronchoconstrictor Agents/pharmacology ; Case-Control Studies ; Female ; HLA-DP Antigens/genetics* ; HLA-DP beta-Chains ; HLA-DR Antigens/genetics* ; HLA-DRB1 Chains ; Haplotypes ; Humans ; Korea ; Male ; Methacholine Chloride/pharmacology ; Middle Aged ; Occupational Diseases/chemically induced ; Occupational Diseases/genetics* ; Occupational Exposure/adverse effects ; Skin Tests ; Toluene 2,4-Diisocyanate/toxicity*
Keywords
class II ; haplotype ; HLA allele ; class I ; TDI‐induced asthma
Abstract
BACKGROUND: There has been no study for evaluating the associations of human leukocyte antigen (HLA) class I and II alleles with toluene diisocyanate (TDI)-induced asthma in an Asian population. OBJECTIVE: The aim of this study was to investigate a susceptible or protective marker of HLA class I and II alleles in TDI-induced asthma. METHODS: Fifty-five patients with TDI-induced asthma patients (group I) showing positive responses on TDI bronchoprovocation test, 47 asymptomatic exposed subjects (group II) and 95 unexposed healthy nonatopic controls (group III) were enrolled in our study. HLA class I and II genotyping was done by the direct DNA sequencing method. RESULTS: The allelic frequency of C*09 (15.5%) was significantly higher in group I than in group III (6.8%, P = 0.019), but this statistical significance disappeared after correction was made for multiple comparisons. On two-locus and three-locus haplotype analysis, the allelic frequency of HLA DRB1*15-DPB1*05 in group I (10.6%) was significantly higher than that of group II (0%, P = 0.001) and group III (2.5%, P = 0.003). The allelic frequencies of HLA A*02-DRB1*15, A*02-DQB1*06, B*62-C*09 and A*02-DRB1*15-DQB1*06 were significantly higher in group I (8.5%, 10.3%, 8.2% and 6.8%, respectively) than those allelic frequencies of group III (1.3%, P = 0.002; 1.6%, P = 0.001; 0.6%, P < 0.0001; 0%, P < 0.0001, respectively). The allelic frequencies of HLA DQB1*06-DPB1*05 and DRB1*15-DQB1*06-DPB1*05 were significantly higher in group I (16.0% and 10.5%) than those in group II (2.5%, P = 0.001; 0%, P = 0.001), while the frequencies of DRB1*09-DPB1*05 and DRB1*09-DQB1*0303-DPB1*05 were significantly lower in group I (0% and 0%) than those of group II (7.4%, P = 0.004; 7.5%, P = 0.004). These differences remained statistically significant even after the correction for multiple comparisons. CONCLUSIONS: The HLA haplotype DRB1*15-DPB1*05 can be a susceptibility gene marker for the development of TDI-induced asthma among the exposed workers in the Korean population.
Full Text
http://onlinelibrary.wiley.com/doi/10.1111/j.1398-9995.2006.01023.x/abstract
DOI
10.1111/j.1398-9995.2006.01023.x
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Hong, Chein Soo(홍천수)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/110178
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