Hussein YM, El-Tarhouny SA, Shalaby SM, Mohamed RH, Hassan TH, El-Sherbeny HM, Mohamed NA. Interleukin-13 receptor A1 gene polymorphism and IL-13 serum level in atopic and non-atopic Egyptian children.
Immunol Invest 2011;
40:523-34. [PMID:
21425907 DOI:
10.3109/08820139.2011.565106]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES
To assess serum interleukin (IL) 13 levels in atopic diseases and to determine the role of IL-13R A(1) gene polymorphism (+1398 A/G) in pathogenesis of these diseases.
METHODS
Serum total immunoglobulin (Ig) E and IL-13 levels were measured by ELISA and the IL-13R A(1) gene (+1398 A/G) was screened by PCR-restriction fragment length polymorphism (RFLP) in 240 asthmatic children (120 atopic and 120 nonatopic) and 120 allergic rhinitis patients compared with 120 age-matched controls.
RESULTS
No significant association was observed between genotype frequencies of the IL-13R A(1) +1398 A/G polymorphism in patients groups compared to in controls. There was a significant increase in serum levels of total IgE & IL-13 towards heterozygous AG and homozygous GG than homozygous AA in atopic asthma, non-atopic asthma and allergic rhinitis groups (P < 0.001 for each). A highly significant increase of serum IL-13 in atopic asthma as compared with controls (P < 0.001) and with nonatopic asthmatics (P < 0.001) was shown.
CONCLUSION
The IL-13R A(1) +1398 A/G polymorphism does not contribute to asthma or allergic rhinitis susceptibility, yet serum IL-13 can be used as a marker in atopic diseases and to differentiate between atopic and non-atopic asthma.
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