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International journal of Immunopathology, allergology, infectology.

Polymorphism of cytokine and C-reactive protein genes in patients with psoriasis in the Kemerovo region of Russia

Romanova E.L., Shabaldin A.V., Belov E.G., Striga L.V., Yakovleva A.A., Shevchenko E.A., Shabaldina E.V.

Kemerovo State University, Kemerovo
Kemerovo State Medical University, Kemerovo
Kuzbass Clinical Skin and Venereological Dispensary, Kemerovo

Aim. To study the associations of polymorphisms of IL-1b (rs16944), IL-6 (rs1554606), IL-8 (rs2227306), IL-10 (rs1800896), TNFα (rs361525), CRP (rs1205) genes and their intergenic interactions with the risk of psoriasis development in Kemerovo region residents.
Materials and Methods. We examined 170 patients (102 men and 78 women) a clinically established diagnosis of vulgar psoriasis. The average age of patients was 46.2+3.9 years, 165 people (97%) had progressive stage psoriasis. The control group (n=155) included 98 healthy men and 57 women matched by age. Genomic DNA isolated from peripheral blood leukocytes by phenol-chloroform extraction according to the standard protocol was used as material. Logistic regression analysis was performed to assess the role of intergenic interactions in the development of psoriasis.
Conclusion. In patients of the Kemerovo region, vulgar psoriasis is associated with minor homozygous genotypes of polymorphic variants of TNFα (rs361525), IL-1b (rs16944), CRP (rs1205) genes. The minor homozygous TNFα (rs361525) genotype has a high odds ratio and is determinant in the development of this form of psoriasis among all genes studied. The major allele and IL-10 genotype (rs1800896) is a disease modifier and affects the clinical course, particularly the development of inflammatory plaques and papules on the lower and upper extremities of patients.


Psoriasis, cytokines, C-reactive protein, gene polymorphism, intergenic interactions

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Romanova E.L., Shabaldin A.V., Belov E.G., Striga L.V., Yakovleva A.A., Shevchenko E.A., Shabaldina E.V. Immunopathology, allergology, infectology 2023; 4:95-102. DOI: 10.14427/jipai.2023.4.95