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Ramírez ADR, de Jesus MCS, Menezes RAO, Santos-Filho MC, Gomes MSM, Pimenta TS, Barbosa VS, Rossit J, Reis NF, Brito SCP, Sampaio MP, Cassiano GC, Storti-Melo LM, Baptista ARS, Machado RLD. Polymorphisms in Toll-Like receptors genes and their associations with immunological parameters in Plasmodium vivax malaria in the Brazil-French Guiana Border. Cytokine 2023; 169:156278. [PMID: 37356261 DOI: 10.1016/j.cyto.2023.156278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 06/08/2023] [Accepted: 06/10/2023] [Indexed: 06/27/2023]
Abstract
BACKGROUND The innate immune response plays an important role during malaria. Toll-like receptors (TLR) are capable of recognizing pathogen molecules. We aimed to evaluate five polymorphisms in TLR-4, TLR-6, and TLR-9 genes and their association with cytokine levels and clinical parameters in malaria from the Brazil-French Guiana border. METHODS A case-control study was conducted in Amapá, Brazil. P. vivax patients and individuals not infected were evaluated. Genotyping of five SNPs was carried out by qPCR. Circulating cytokines were measured by CBA. The MSP-119 IgG antibodies were performed by ELISA. RESULTS An association between TLR4 A299G with parasitemia was observed. There was an increase for IFN-ɤ, TNF-ɑ, IL-6, and IL-10 in the TLR-4 A299G and T3911, TLR-6 S249P, and TLR-9 1486C/T, SNPs for the studied malarial groups. There were significant findings for the TLR-4 variants A299G and T3911, TLR-9 1237C/T, and 1486C/T. For the reactivity of MSP-119 antibodies levels, no significant results were found in malaria, and control groups. CONCLUSIONS The profile of the immune response observed by polymorphisms in TLRs genes does not seem to be standard for all types of malaria infection around the world. This can depend on the human population and the species of Plasmodium.
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Affiliation(s)
- Aina D R Ramírez
- Center for Microorganisms' Investigation, Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24020-141 Rio de Janeiro, Brazil; Postgraduate Program in Applied Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24210-130 Rio de Janeiro, Brazil
| | - Myrela C S de Jesus
- Center for Microorganisms' Investigation, Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24020-141 Rio de Janeiro, Brazil; Postgraduate Program in Applied Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24210-130 Rio de Janeiro, Brazil
| | - Rubens A O Menezes
- Postgraduate Program in Applied Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24210-130 Rio de Janeiro, Brazil; Postgraduate Program in Health Sciences, Federal University of Amapá (UNIFAP), Macapá 68903-419, Amapá, Brazil
| | - Marcelo C Santos-Filho
- Center for Microorganisms' Investigation, Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24020-141 Rio de Janeiro, Brazil; Postgraduate Program in Applied Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24210-130 Rio de Janeiro, Brazil
| | - Margarete S M Gomes
- Superintendence of Health Surveillance of the State of Amapá, Macapá 68902-865, Amapá, Brazil
| | - Tamirys S Pimenta
- Instituto Evandro Chagas / Secretaria de Vigilância em Saude / Ministério da Saude, Ananindeua 67030-000, Pará, Brazil
| | - Vanessa S Barbosa
- Center for Microorganisms' Investigation, Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24020-141 Rio de Janeiro, Brazil
| | - Julia Rossit
- Center for Microorganisms' Investigation, Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24020-141 Rio de Janeiro, Brazil
| | - Nathalia F Reis
- Center for Microorganisms' Investigation, Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24020-141 Rio de Janeiro, Brazil; Postgraduate Program in Applied Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24210-130 Rio de Janeiro, Brazil
| | - Simone Cristina Pereira Brito
- Center for Microorganisms' Investigation, Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24020-141 Rio de Janeiro, Brazil; Postgraduate Program in Applied Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24210-130 Rio de Janeiro, Brazil
| | - Marrara Pereira Sampaio
- Center for Microorganisms' Investigation, Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24020-141 Rio de Janeiro, Brazil; Postgraduate Program in Applied Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24210-130 Rio de Janeiro, Brazil
| | | | - Luciane M Storti-Melo
- Laboratory of Molecular Genetics and Biotechnology, Department of Biology, Center for Biological and Health Sciences, Federal University of Sergipe, São Cristóvão 49100-000, Sergipe, Brazil
| | - Andrea R S Baptista
- Center for Microorganisms' Investigation, Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24020-141 Rio de Janeiro, Brazil; Postgraduate Program in Applied Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24210-130 Rio de Janeiro, Brazil
| | - Ricardo L D Machado
- Center for Microorganisms' Investigation, Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24020-141 Rio de Janeiro, Brazil; Postgraduate Program in Applied Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24210-130 Rio de Janeiro, Brazil.
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