Association between genes encoding components of the IL-10/IL-0 receptor pathway and asthma in children

Background Asthma is a chronic inflammation of the airways associated with recurrent symptoms that range from mild to debilitating. Interleukin-10 (IL-10) is a cytokine that displays pleiotropic effects in asthma and allergy. Objective To determine whether polymorphisms of IL-10/IL-10R pathway contr...

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Veröffentlicht in:Annals of allergy, asthma, & immunology asthma, & immunology, 2011-06, Vol.106 (6), p.474-480
Hauptverfasser: Hussein, Yousri M., PhD, Shalaby, Sally M., MD, Mohamed, Randa H., MD, Hassan, Tamer H., MD
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Sprache:eng
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Zusammenfassung:Background Asthma is a chronic inflammation of the airways associated with recurrent symptoms that range from mild to debilitating. Interleukin-10 (IL-10) is a cytokine that displays pleiotropic effects in asthma and allergy. Objective To determine whether polymorphisms of IL-10/IL-10R pathway contribute to asthma susceptibility in Egyptian children. Methods The IL-10 (−1082G/A), IL-10R1 (G330R), and signal transducer and activator of transcription 3 (STAT3) rs2293452 single-nucleotide polymorphism (SNP) were genotyped in 110 atopic children with asthma, 110 non-atopic children with asthma, and 110 healthy children. Serum IL-10 and immunoglobulin E (IgE) levels were determined by enzyme-linked immunosorbent assay. Results A significant association was observed between the IL-10 polymorphism and asthma in both atopic ( P = .03) and non-atopic asthma groups ( P = .04). The genotype frequencies of IL-10R1 polymorphisms did not differ between all groups. We identified a significant association between STAT3 polymorphism and asthma susceptibility in atopic asthma ( P < .001), whereas no such association was observed in the non-atopic asthma group ( P = .9). No evidence of gene interactions was found. Conclusion Polymorphisms of IL-10 and STAT3 may be useful as a new DNA-based diagnostic biomarker for identifying high-risk children susceptible to asthma.
ISSN:1081-1206
1534-4436
DOI:10.1016/j.anai.2011.02.021