Genetic polymorphism in IL17RA induces susceptibility to Toxoplasma gondii infection in Brazilian pregnant women
| Autor: | Yngrid Gleyter Barbosa de Almeida, André Talvani, Joelma Maria de Araújo Andrade, Débora Maria Soares de Souza, Jéssica Emanuella Santana, Priscilla Vilela dos Santos, Claudio Bruno Silva de Oliveira, Valter Ferreira de Andrade-Neto, Guilherme de Paula Costa, Janaina Cristiana de Oliveira Crispim Freitas, Gustavo Martelli Palomino, Ywlliane da Silva Rodrigues Meurer |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
0301 basic medicine Genotype Veterinary (miscellaneous) 030231 tropical medicine Population Antibodies Protozoan Single-nucleotide polymorphism Biology Polymorphism Single Nucleotide Young Adult 03 medical and health sciences 0302 clinical medicine Pregnancy medicine Humans SNP Genetic Predisposition to Disease Allele education education.field_of_study Receptors Interleukin-17 Toxoplasma gondii 030108 mycology & parasitology medicine.disease biology.organism_classification Toxoplasmosis Infectious Diseases Pregnancy Complications Parasitic Insect Science Immunology Cytokines Female Parasitology Pregnant Women IL17A Toxoplasma Brazil |
| Zdroj: | Acta Tropica. 211:105594 |
| ISSN: | 0001-706X |
| DOI: | 10.1016/j.actatropica.2020.105594 |
| Popis: | Congenital toxoplasmosis is a parasitic disease caused by Toxoplasma gondii, an obligate intracellular parasite which can cause fetal death/abortion and can induce damage in the brain and eyes of the infected babies. The environmental and genetic factors associated with T. gondii and the maternal immune response, drive part of the pathogenesis of congenital toxoplasmosis. Thus, in this study, we aimed to investigate the allelic and genotypic frequencies of specific single nucleotide polymorphisms (SNPs) in the IL17A and IL17RA genes, as well as the production of IL-17A, IL-33, and CCL2 in pregnant women, from the State of Rio Grande do Norte, Brazil, further relating these along with the clinical parameters, to the toxoplasmosis infection. Through PCR-RFLP techniques, two SNPs implicated in Th17 immune response, IL17A rs2275913 (G> A) and IL17RA rs4819554 (A> G) modulation were evaluated in pregnant women, either infected or not infected by T. gondii. These women were also evaluated in terms of plasma release of CCL2, IL-33, and IL-17A which relate to hypertension, number of abortions, and ethnic pattern. The results showed that the G-allele of the SNP rs2275913 (IL17A) appeared to be protective in this population, while the rs4819554 (IL17RA) SNP G allele was associated with greater susceptibility to T. gondii infection [ρ value = 0.025; OR = 2.815 (1.118–7.089); CI = 95%]. None of the cytokines had any influence on the analyzed parameters (abortion and hypertension). In conclusion, our data suggest an immunogenic evidence of susceptibility to T. gondii infection driven by the rs4819554 (IL17RA) SNP G allele in Brazilian pregnant women. Further studies are needed to reinforce this trial marker in populations from distinct geographical areas as well as to confirm the protective pattern related to the G-allele of the SNP rs2275913 (IL17A) in pregnant women. |
| Databáze: | OpenAIRE |
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