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da Silva-Gomes NL, Ruivo LADS, Moreira C, Meuser-Batista M, da Silva CF, Batista DDGJ, Fragoso S, de Oliveira GM, Soeiro MDNC, Moreira OC. Overexpression of TcNTPDase-1 Gene Increases Infectivity in Mice Infected with Trypanosoma cruzi. Int J Mol Sci 2022; 23:ijms232314661. [PMID: 36498985 PMCID: PMC9736689 DOI: 10.3390/ijms232314661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/27/2022] Open
Abstract
Ecto-nucleoside triphosphate diphosphohydrolases (NTPDases) are enzymes located on the surface of the T. cruzi plasma membrane, which hydrolyze a wide range of tri-/-diphosphate nucleosides. In this work, we used previously developed genetically modified strains of Trypanosoma cruzi (T. cruzi), hemi-knockout (KO +/−) and overexpressing (OE) the TcNTPDase-1 gene to evaluate the parasite infectivity profile in a mouse model of acute infection (n = 6 mice per group). Our results showed significantly higher parasitemia and mortality, and lower weight in animals infected with parasites OE TcNTPDase-1, as compared to the infection with the wild type (WT) parasites. On the other hand, animals infected with (KO +/−) parasites showed no mortality during the 30-day trial and mouse weight was more similar to the non-infected (NI) animals. In addition, they had low parasitemia (45.7 times lower) when compared with parasites overexpressing TcNTPDase-1 from the hemi-knockout (OE KO +/−) group. The hearts of animals infected with the OE KO +/− and OE parasites showed significantly larger regions of cardiac inflammation than those infected with the WT parasites (p < 0.001). Only animals infected with KO +/− did not show individual electrocardiographic changes during the period of experimentation. Together, our results expand the knowledge on the role of NTPDases in T. cruzi infectivity, reenforcing the potential of this enzyme as a chemotherapy target to treat Chagas disease (CD).
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Affiliation(s)
- Natália Lins da Silva-Gomes
- Plataforma de PCR em Tempo Real RPT09A, Laboratório de Virologia Molecular-IOC/FIOCRUZ, Rio de Janeiro 21040-360, Brazil
| | | | - Claudia Moreira
- Laboratório de Biologia Molecular de Tripanossomatídeos-ICC/FIOCRUZ, Curitiba 81350-010, Brazil
| | - Marcelo Meuser-Batista
- Laboratório de Educação Profissional em Técnicas Laboratoriais em Saúde, EPSJV/FIOCRUZ, Rio de Janeiro 21040-360, Brazil
| | | | | | - Stênio Fragoso
- Laboratório de Biologia Molecular de Tripanossomatídeos-ICC/FIOCRUZ, Curitiba 81350-010, Brazil
| | | | | | - Otacilio C. Moreira
- Plataforma de PCR em Tempo Real RPT09A, Laboratório de Virologia Molecular-IOC/FIOCRUZ, Rio de Janeiro 21040-360, Brazil
- Correspondence:
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Gonçalves KR, Mazzeti AL, Nascimento AFDS, Castro-Lacerda In Memory JM, Nogueira-Paiva NC, Mathias FAS, Reis AB, Caldas S, Bahia MT. The entrance route: Oral, mucous, cutaneous, or systemic has a marked influence on the outcome of Trypanosoma cruzi experimental infection. Acta Trop 2022; 234:106581. [PMID: 35779591 DOI: 10.1016/j.actatropica.2022.106581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 11/25/2022]
Abstract
In recent decades, the oral infection of Trypanosoma cruzi has gathered increased attention due to frequent outbreaks that can lead to more severe clinical signs than those usually found in the areas of vector transmission. This study addresses the main routes of infection using metacyclic trypomastigotes (MT) and blood trypomastigotes (BT). Herein, BALB/c mice were infected with the Colombian (TcI) strain via intraperitoneal (IP), oral, intragastric (IG), ocular (OC) and cutaneous (CT) routes with 106 culture-derived MT or BT. Parasitemia was intermittent and low in animals inoculated with MT, in contrast, high parasitemia levels were found in BT-mice. A tropism for the muscles was observed in oral or IG infection with BT. Differently, the parasite was widely distributed in the tissues of mice infected with MT. However, the intensity of the inflammation infiltrating the tissues was higher in oral or IG infection with BT. Animals inoculated with BT via the IG route had similar serum levels of IFN-γ and smaller IL-10 compared to those infected with MT via the IG route. TNF-α levels were higher in the serum from BT-animals, which could explain the higher intensity of heart inflammation in these animals. Our results suggest that the infective form and the route of infection differentially modulated the outcome of Trypanosoma cruzi mice infection.
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Affiliation(s)
- Karolina Ribeiro Gonçalves
- Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Universitário, Morro do Cruzeiro - Ouro Preto, Minas Gerais, Brasil.
| | - Ana Lia Mazzeti
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, 4365 Rio de Janeiro, Brasil; Laboratório de Parasitologia Aplicada, Universidade Estadual de Minas Gerais - Unidade Passos, Av. Juca Stockler, 1130 Passos, Minas Gerais, Brasil
| | - Alvaro Fernando da Silva Nascimento
- Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Universitário, Morro do Cruzeiro - Ouro Preto, Minas Gerais, Brasil
| | - Jéssica Mara Castro-Lacerda In Memory
- Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Universitário, Morro do Cruzeiro - Ouro Preto, Minas Gerais, Brasil
| | - Nívia Carolina Nogueira-Paiva
- Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Universitário, Morro do Cruzeiro - Ouro Preto, Minas Gerais, Brasil
| | - Fernando Augusto Siqueira Mathias
- Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Universitário, Morro do Cruzeiro - Ouro Preto, Minas Gerais, Brasil; Laboratório de Informática de Biossistemas e Genômica, Instituto René Rachou, Fundação Oswaldo Cruz, Av. Augusto de Lima, 1715 Belo Horizonte, Minas Gerais, Brasil
| | - Alexandre Barbosa Reis
- Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Universitário, Morro do Cruzeiro - Ouro Preto, Minas Gerais, Brasil
| | - Sérgio Caldas
- Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Universitário, Morro do Cruzeiro - Ouro Preto, Minas Gerais, Brasil; Serviço de Biotecnologia e Saúde, Diretoria de Pesquisa e Desenvolvimento, Fundação Ezequiel Dias, Rua Conde Pereira Carneiro, 80 - Belo Horizonte, Minas Gerais, Brasil
| | - Maria Terezinha Bahia
- Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Universitário, Morro do Cruzeiro - Ouro Preto, Minas Gerais, Brasil
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