IL-4 and its polymorphism (<i>IL4</i>-589C/T) in cervical neoplasia

Author:

Abakumova T. V.1ORCID,Myagdieva I. R.1ORCID,Dolgova D. R.1ORCID,Gening S. O.1ORCID,Antoneeva I. I.2ORCID,Gening T. P.1ORCID

Affiliation:

1. Ulyanovsk State University

2. Ulyanovsk State University; Regional Clinical Oncologic Center

Abstract

The transition of cervical neoplasia (CIN) to cervical cancer occurs with the active participation of IL-4, for which both pro- and antitumor effects have been shown with tumors of various localizations. The expression of cytokines is regulated at the transcriptional level in the promoter region of the gene. It has been shown that the genotype IL4 (589C/T) (rs2243250) is associated with the development of gastric and breast cancer. The contribution of IL-4 genotypic variations to the development of CIN has not yet been studied. The aim of the study was to assess the risk of developing cervical neoplasia by the presence polymorphism of IL4 (589C/T) and the level of IL-4. The object of the study was circulating neutrophils, serum and genomic DNA of 36 patients with CIN and 20 women without dysplasia (comparison group). Using ELISA, the level of IL-4 was determined in neutrophil lysate and serum. Phagocytic activity and adhesive ability (CD11b) of neutrophils were assessed. Allele-specific real-time PCR using Taq-Man probes was used to analyze of the IL4 589C/T (rs2243250). Statistical processing was carried out using Statistica 13 and Jamovi 1.6.5.0. As a result of the study, it was found that the level of IL-4 in serum and circulating neutrophils in patients with CIN is significantly higher than in the comparison group. The -589C* allele of the IL4 gene and the TT genotype are more common in the group with CIN (55.5%) than in the control (25%). At the same time, a direct relationship was established between the presence of polymorphism and increased adhesive ability and with indicators of the phagocytic number of circulating neutrophils. Analysis of the incidence of IL4 C589T by the «case-control» method showed that the chances of CIN formation in carriers of the -589C allele and the TT genotype were 3.75 (95% CI: 1.013 - 13.880, Chi-square = 4.161, p = 0.042). The -589C* allele and TT IL4 genotype, neutrophil and serum IL-4 levels are associated with HPV infection. Using a binary logistic regression model, we demonstrated the possibility of using IL-4 levels in circulating neutrophils and IL-4 gene polymorphism (589C/T) for the differential diagnosis of patients with CIN (χ2 = 15.6, p = 0.001). Significant significance for their combination was assessed by ROC-curve analysis (IL-4 in neutrophils; IL4 (-589С*), 75% probability. Thus, the IL4 (589C/T) is associated with the adhesive and phagocytic activity of circulating neutrophils. In HPV-infected patients, IL4 gene polymorphism (589C/T) can serve as a marker for early detection and prognosis of CIN.

Publisher

SPb RAACI

Subject

Immunology,Immunology and Allergy

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