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Terto WDS, Moura MQD, Borchardt JL, Santos FDS, Avila LFDC, Pinheiro NB, Leite FPL, Villela MM, Berne MEA. Cyclosporine A increases the intensity of Toxocara canis infection in swiss mice. BRAZ J BIOL 2022; 82:e260199. [PMID: 36134869 DOI: 10.1590/1519-6984.260199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 06/18/2022] [Indexed: 11/22/2022] Open
Abstract
Toxocariasis is a zoonotic disease of worldwide distribution. The connection between parasitic diseases and conditions that depress the immune system, such as the use of immunosuppressive drugs, has been studied. The purpose of this study was to evaluate the effect of Cyclosporine A (CsA) on the intensity of infection, humoral response and gene transcription of interleukins IL-4, IL-10 and IL-12 in mice experimentally infected with Toxocara canis. To this end, mice were divided into two groups treated with CsA (G1: 10 mg/Kg and G2: 50 mg/kg), the G3 and G4 group received PBS. After the last administration of the drug or PBS (orally every 48 hours for 15 days), groups G1, G2 and G3 were inoculated with 1200 eggs of T. canis. Was collected blood samples on days zero, 15 and 30 days post-inoculation (PI), for ELISA test and the mice were euthanized 30 days PI. The organs and striated muscle tissue were collected for the recovery of larvae. The splenocytes were analyzed by RT-PCR. The intensity of infection in the mice treated with 50 mg/kg of CsA was 65.5% higher than in the control group (p=0.001). An analysis of the kinetics of anti-Toxocara antibody revealed that the groups treated with CsA showed significantly higher mean levels of antibodies on day 15 PI. The transcription of the three tested interleukins showed no statistical difference between G2 and G3 (control). It was concluded that the immunosuppression triggered by CsA (50 mg/Kg) favored the establishment of a larger number of T. canis larvae without, however, altering immunoglobulin production and IL-4, IL-10 and IL-12 transcription on day 30 PI.
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Affiliation(s)
- W D S Terto
- Universidade Federal de Pelotas - UFPel, Institute of Biology, Department of Microbiology and Parasitology, Post-Graduate Program in Microbiology and Parasitology, University Campus of Capão do Leão, Pelotas, RS, Brasil
| | - M Q de Moura
- Universidade Federal de Pelotas - UFPel, Institute of Biology, Department of Microbiology and Parasitology, Post-Graduate Program in Microbiology and Parasitology, University Campus of Capão do Leão, Pelotas, RS, Brasil
| | - J L Borchardt
- Universidade Federal de Pelotas - UFPel, Institute of Biology, Department of Microbiology and Parasitology, Post-Graduate Program in Microbiology and Parasitology, University Campus of Capão do Leão, Pelotas, RS, Brasil
| | - F D S Santos
- Universidade Federal de Pelotas - UFPel, Institute of Biology, Department of Microbiology and Parasitology, Post-Graduate Program in Microbiology and Parasitology, University Campus of Capão do Leão, Pelotas, RS, Brasil
| | - L F da Costa Avila
- Universidade Federal do Rio Grande - FURG, Faculty of Medicine, Academic Area of the University Hospital, Post-Graduate Program in Health Sciences - Parasitology Laboratory, Rio Grande, RS, Brasil
| | - N B Pinheiro
- Universidade Federal de Pelotas - UFPel, Institute of Biology, Department of Microbiology and Parasitology, Post-Graduate Program in Microbiology and Parasitology, University Campus of Capão do Leão, Pelotas, RS, Brasil
| | - F P Leivas Leite
- Universidade Federal de Pelotas - UFPel, Biotechnology Center, Post-Graduate Program in biotechnology, University Campus of Capão do Leão, Pelotas, RS, Brasil
| | - M M Villela
- Universidade Federal de Pelotas - UFPel, Institute of Biology, Department of Microbiology and Parasitology, Post-Graduate Program in Microbiology and Parasitology, University Campus of Capão do Leão, Pelotas, RS, Brasil
| | - M E A Berne
- Universidade Federal de Pelotas - UFPel, Institute of Biology, Department of Microbiology and Parasitology, Post-Graduate Program in Microbiology and Parasitology, University Campus of Capão do Leão, Pelotas, RS, Brasil
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Chieffi PP, Zevallos Lescano SA, Rodrigues E Fonseca G, Dos Santos SV. Human Toxocariasis: 2010 to 2020 Contributions from Brazilian Researchers. Res Rep Trop Med 2021; 12:81-91. [PMID: 34040480 PMCID: PMC8141392 DOI: 10.2147/rrtm.s274733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 04/26/2021] [Indexed: 01/18/2023] Open
Abstract
This is a review of the published contributions made by Brazilian researchers between 2010 and 2020 on the natural history of human toxocariasis and the effects of human toxocariasis on nonhuman paratenic hosts.
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Affiliation(s)
- Pedro Paulo Chieffi
- Department of Pathological Sciences, Santa Casa Medical School, São Paulo, Brazil
| | | | - Gabriela Rodrigues E Fonseca
- Department of Infectious and Parasitic Diseases, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
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