Immunological factors as predictors of chronic acute urticaria

Objective: to conduct a comparative analysis of the level of α-defensins (HNP1-3) and cytokines (IL-8, IL-4, IL-17, TNFα) to identify predictors of chronic acute urticaria. Materials and methods. There were 57 patients under observation with acute recurrent urticaria, divided by the level of serum IgE into 3 groups: group 1 - patients with IgE levels up to 100 IU / ml, group 2 - with IgE from 100 to 500 IU / ml, group 3- with IgE over 500 IU / ml. The quantitative content of α-defensins (HNP 1-3) in blood plasma and cytokines (IL-8, IL-4, IL-17A, TNF-α), IgE in blood serum was determined by solid-phase ELISA. Rusults. The study showed that in all patients with acute urticaria there was an increase in the level of serum cytokines (IL-8, IL-17A, TNF-α) and α-defensins HNP 1-3, the most pronounced in patients of group 3 with an IgE level of more than 500 IU/ml According to the results of correlation analysis, the strongest direct correlation was found between the level of α-defensins HNP 1-3 and IL-17A. In patients of groups 2 and 3, a strong direct correlation was also found between the level of HNP 1-3 and TNFα. Conclusion. The results of the study showed that a significant increase in the level of cytokines IL-4, IL-8, IL-17A, TNF-α and α-defensins (HNP1-3) in patients with acute recurrent urticaria indicates their key role in the pathogenesis of the disease. The revealed direct correlation between the levels of α-defensins, IL-17A and TNF-α reflects the dynamics of the course of immunoinflammatory process and can be regarded as predictors of chronic acute urticaria.