Document Detail


Integrin beta 3 genotype influences asthma and allergy phenotypes in the first 6 years of life.
MedLine Citation:
PMID:  17556058     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The integrin beta3 gene (ITGB3) encodes a subunit of the platelet and monocyte-specific fibrinogen receptor and the widely expressed vitronectin receptor, which have diverse roles in cell migration, adhesion, and signaling. Previous work from our laboratory reported associations between single nucleotide polymorphisms (SNPs) in ITGB3 and asthma and allergic sensitization in 4 populations. OBJECTIVE: To examine whether SNPs in ITGB3 are associated with the development of asthma and allergic phenotypes in early life. METHODS: We typed 13 SNPs in 206 children participating in a birth cohort study and tested for associations with asthma and allergy phenotypes in the first 6 years of life. RESULTS: Our study revealed significant associations between SNPs in ITGB3 and asthma, wheezing, and IgE levels, suggesting an early role for this gene in the development of asthma and allergy. In particular, SNPs at the 3' end of the gene were significantly associated with IgE levels beginning at 1 year of age, whereas a SNP in intron 1 showed significant interaction effects with viral respiratory illness in infancy on asthma susceptibility. CONCLUSION: Our results suggest that genetic variation in ITGB3 contributes to asthma susceptibility and allergic sensitization, and that the effects of this gene begin early in life. Similar to our earlier study, different SNPs in the gene are associated with asthma and IgE. CLINICAL IMPLICATIONS: ITGB3 may play an important role in the development of asthma and allergy and may represent a potential therapeutic target for the treatment of these disorders.
Authors:
Emma E Thompson; Lin Pan; Irina Ostrovnaya; Lauren A Weiss; James E Gern; Robert F Lemanske; Dan L Nicolae; Carole Ober
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  The Journal of allergy and clinical immunology     Volume:  119     ISSN:  0091-6749     ISO Abbreviation:  J. Allergy Clin. Immunol.     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-06-08     Completed Date:  2007-07-27     Revised Date:  2007-12-03    
Medline Journal Info:
Nlm Unique ID:  1275002     Medline TA:  J Allergy Clin Immunol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1423-9     Citation Subset:  AIM; IM    
Affiliation:
Department of Human Genetics, University of Chicago, Chicago, Ill., USA. eethomps@uchicago.edu
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MeSH Terms
Descriptor/Qualifier:
Aging / genetics,  immunology*
Asthma / genetics*,  immunology
Child
Child, Preschool
Cohort Studies
Genetic Predisposition to Disease
Genotype
Humans
Hypersensitivity, Immediate / genetics,  immunology
Immunophenotyping*
Infant
Integrin beta3 / genetics*,  physiology
Polymorphism, Single Nucleotide*
Respiratory Hypersensitivity / genetics*,  immunology
Respiratory Sounds / genetics,  immunology
Grant Support
ID/Acronym/Agency:
P01 HL70831/HL/NHLBI NIH HHS; T32 HL007605/HL/NHLBI NIH HHS
Chemical
Reg. No./Substance:
0/ITGB3 protein, human; 0/Integrin beta3

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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