CD53, a suppressor of inflammatory cytokine production, is associated with population asthma risk via the functional promoter polymorphism-1560 C > T

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Background: In this study, the association of asthma with CD53, a member of the tetraspanin family, was assessed for the first time in a mechanism-based study. Methods: Genetic polymorphisms of CD53 were analyzed in 591 subjects and confirmed in a replication study of 1001 subjects. CD53 mRNA and protein levels were measured in peripheral blood leukocytes, and the effects of the promoter polymorphisms on nuclear factor binding were examined by electrophoretic mobility shift assay. Cellular functional studies were conducted by siRNA transfections. Results: Among tagging SNPs of CD53, the - 1560 C>T in the promoter region was significantly associated with asthma risk. Compared with the CC genotype, the CT and IT genotypes were associated with a higher asthma risk, with odd ratios of 1.74 (P=0.009) and 2.03 (P=0.004), respectively. These findings were confirmed in the replication study with odd ratios of 1.355 (P=0.047) and 1.495 (P=0.039), respectively. The - 1560 C>T promoter SNP had functional effects on nuclear protein binding as well as mRNA and protein expression levels in peripheral blood leukocytes. When CD53 was knocked down by siRNA in THP-1 human monocytic cells stimulated with house dust mite, the production of inflammatory cytokines as well as NF kappa B activity was significantly over-activated, suggesting that CD53 suppresses over-activation of inflammatory responses. Conclusions: The - 1560 C>T SNP is a functional promoter polymorphism that is significantly associated with population asthma risk, and is thought to act by directly modulating nuclear protein binding, thereby altering the expression of CD53, a suppressor of inflammatory cytokine production. (C) 2013 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2013-04
Language
English
Article Type
Article
Keywords

HOUSE-DUST MITE; FC-EPSILON-RI; TNF-ALPHA; EPITHELIAL-CELLS; REAL-TIME; TETRASPANINS; EXPRESSION; EXPOSURE; CD81; ALLERGENS

Citation

BIOCHIMICA ET BIOPHYSICA ACTA-GENERAL SUBJECTS, v.1830, no.4, pp.3011 - 3018

ISSN
0304-4165
DOI
10.1016/j.bbagen.2012.12.030
URI
http://hdl.handle.net/10203/173581
Appears in Collection
MSE-Journal Papers(저널논문)
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