Association between IL-17A, IL-17F and IL-17RA gene polymorphisms and susceptibility to psoriasis and psoriatic arthritis: a meta-analysis.

Fridha Viridiana Villalpando-Vargas, Juan José Rivera-Valdés, Anabell Alvarado-Navarro, Selene Guadalupe Huerta-Olvera, José Macías-Barragán, Erika Martínez-López, Omar Graciano-Machuca

Journal: Inflammation research : official journal of the European Histamine Research Society ... [et al.] 2022;70(10-12):1201-1210

PMID: 34705056

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Abstract

BACKGROUND

Psoriasis (Ps) is a chronic dermatosis characterized by erythematous-squamous plaques derived from an inflammatory response. The effect of polymorphisms in the genes that encode the members of the IL-17 family and their receptors has been studied to find an association with the susceptibility to Ps. However, the findings have not been conclusive.

OBJECTIVES

To describe the association between IL-17A, IL-17F and IL-17RA gene polymorphisms and susceptibility to Ps.

METHOD

A systematic review was conducted using the PubMed and Scopus databases to identify studies that evaluated the association between IL-17A, IL-17F, and IL-17RA gene polymorphisms and Ps susceptibility. This meta-analysis included reports published until June 2021. Heterogeneity was assessed using Cochran's Q-statistic test and I statistics. The associations between polymorphisms and Ps susceptibility were determined by pooled OR with a 95% CI.

RESULTS

Fifteen studies were included. The frequency of the T allele of the IL-17F rs763780 polymorphism was significantly lower in patients with vulgar Ps (OR = 0.732, p = 0.026). The TT genotype of the IL-17F rs763780 polymorphism was significantly associated with a decreased frequency in individuals with Ps and psoriatic arthritis (PsA) (TT:TC + CC OR = 0.664, p = 0.046). Regarding IL-17RA polymorphisms, the AG genotype of the rs4819554 polymorphism showed a near-significant decrease in psoriasis risk compared to the GG genotype (AG:GG OR = 0.604, p = 0.050). Other polymorphisms in IL-17A, IL-17F and IL-17RA showed no association with Ps.

CONCLUSIONS

The T allele and TT genotype of the IL-17F rs763780 polymorphism may be associated with a decreased risk of psoriasis. Therefore, the implications of this variant on psoriasis pathogenesis and treatment require further investigation.

Address: Laboratory of Neurophysiology, Department of Cellular and Molecular Biology Sciences, Biologic and Agropecuary Sciences Campus, University of Guadalajara (UDG), Zapopan, Jalisco, Mexico.; Institute of Translational Nutrigenetics and Nutrigenomics, Department of Molecular Biology and Genomics, Health Sciences Campus (CUCS), University of Guadalajara (UDG), Guadalajara, Jalisco, Mexico.; Research Center in Immunology and Dermatology, Department of Physiology, Health Sciences Campus (CUCS), University of Guadalajara (UDG), Guadalajara, Jalisco, Mexico.; Department of Medical and Life Sciences, University of Guadalajara (UDG), La Ciénega Campus, Ocotlan, Jalisco, Mexico.; Laboratory of Biological Systems, Department of Health Sciences, Los Valles Campus, University of Guadalajara (UDG), Ameca, Jalisco, Mexico.; Laboratory of Biological Systems, Department of Health Sciences, Los Valles Campus, University of Guadalajara (UDG), Ameca, Jalisco, Mexico. [email protected].

DOI: 10.1007/s00011-021-01514-6