Basic research
Atopic dermatitis patients carrying G allele in –1082 G/A IL-10 polymorphism are predisposed to higher serum concentration of IL-10
 
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Submission date: 2012-09-10
 
 
Final revision date: 2013-02-25
 
 
Acceptance date: 2013-02-26
 
 
Online publication date: 2014-12-22
 
 
Publication date: 2014-12-17
 
 
Arch Med Sci 2014;10(6):1239-1243
 
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ABSTRACT
Introduction: Atopic dermatitis (AD) is a chronic skin inflammatory disease in which Th2-derived cytokines play an essential role. Aim of the study was to assess interleukin 4, 10 and 13 (IL-4, IL-10 and IL-13) serum concentrations in AD patients and to correlate the values with the occurrence of genotypes of selected polymorphisms in genes encoding these cytokines.
Material and methods: Seventy-six AD patients (mean age 11.4 years) and 60 healthy controls were enrolled in the study. Blood samples were analyzed for IL-4, IL-10 and IL-13 concentrations with ELISA assay and genotyping for –590C/T IL-4, –1082A/G IL-10 and –1055C/T IL-13 polymorphisms with PCR-RFLP.
Results: The obtained results revealed statistically higher serum concentration of IL-10 and IL-13 in AD patients when compared to healthy controls (10.30 pg/ml vs. 8.51 pg/ml for IL-10 and 5.67 pg/ml vs. 4.98 pg/ml for IL-13). There were no significant differences between AD patients and controls in regard to IL-4 serum level (5.10 pg/ml vs. 7.1 pg/ml). Analyzing the association between level of the examined cytokines and genotype polymorphisms –590 C/T for the IL-4 gene, –1082 A/G for the IL-10 gene and –1055 C/T for the IL-13 gene, we found a statistically higher IL-10 serum level among carriers of the G allele in the –1082 G/A IL-10 polymorphism both in AD and control groups. We did not find any significant differences between serum level of IL-4 and IL-13 in regard to genotype occurrence in examined polymorphisms: –590 C/T for the IL-4 gene and –1055 C/T for the IL-13 gene.
Conclusions: The obtained results confirm the genetic background of IL-10 synthesis in the Polish population.
eISSN:1896-9151
ISSN:1734-1922
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