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Guimarães Gois PS, Franco PS, Cota Teixeira S, Guirelli PM, de Araújo TE, da Fonseca Batistão DW, de Oliveira FC, Lícia Santos Ferreira G, de Oliveira Gomes A, Favoreto S, Mineo JR, de Freitas Barbosa B, Ferro EAV. Polarisation of human macrophages towards an M1 subtype triggered by an atypical Brazilian strain of Toxoplasma gondii results in a reduction in parasite burden. Folia Parasitol (Praha) 2022; 69. [DOI: 10.14411/fp.2022.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 06/16/2022] [Indexed: 11/19/2022]
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Rosa RB, da Costa MS, Teixeira SC, de Castro EF, Dantas WM, Ferro EAV, da Silva MV. Calomys callosus: An Experimental Animal Model Applied to Parasitic Diseases Investigations of Public Health Concern. Pathogens 2022; 11:pathogens11030369. [PMID: 35335694 PMCID: PMC8948650 DOI: 10.3390/pathogens11030369] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/07/2022] [Accepted: 03/14/2022] [Indexed: 01/27/2023] Open
Abstract
The appearance and spread of parasitic diseases around the world aroused the interest of the scientific community to discover new animal models for improving the quality and specificity of surveys. Calomys callosus is a rodent native to South America, an easy handling model, with satisfactory longevity and reproducibility. C. callosus is susceptible to toxoplasmosis and can be used as experimental model for the study the pathogenesis, treatment, vertical transmission, and ocular toxoplasmosis. C. callosus can also be used to study cutaneous and visceral leishmaniasis, as the animals present cutaneous lesions, as well as parasites in the organs. C. callosus has epidemiological importance in Chagas disease, and since it is a Trypanosoma cruzi natural host in which rodents show high parasitemia and lethality, they are also effective as a model of congenital transmission. In the study of schistosomiasis, Schistosoma mansoni was proven to be a C. callosus natural host; thus, this rodent is a great model for fibrosis, hepatic granulomatous reaction, and celloma associated with lymphomyeloid tissue (CALT) during S. mansoni infection. In this review, we summarize the leading studies of parasitic diseases that used C. callosus as a rodent experimental model, describing the main uses and characteristics that led them to be considered an effective model.
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Affiliation(s)
- Rafael Borges Rosa
- Rodents Animal Facilities Complex, Federal University of Uberlandia, Uberlandia 38400-902, Brazil; (R.B.R.); (M.S.d.C.); (E.F.d.C.)
| | - Mylla Spirandelli da Costa
- Rodents Animal Facilities Complex, Federal University of Uberlandia, Uberlandia 38400-902, Brazil; (R.B.R.); (M.S.d.C.); (E.F.d.C.)
| | - Samuel Cota Teixeira
- Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlandia 38405-318, Brazil; (S.C.T.); (E.A.V.F.)
| | - Emilene Ferreira de Castro
- Rodents Animal Facilities Complex, Federal University of Uberlandia, Uberlandia 38400-902, Brazil; (R.B.R.); (M.S.d.C.); (E.F.d.C.)
| | | | - Eloisa Amália Vieira Ferro
- Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlandia 38405-318, Brazil; (S.C.T.); (E.A.V.F.)
| | - Murilo Vieira da Silva
- Rodents Animal Facilities Complex, Federal University of Uberlandia, Uberlandia 38400-902, Brazil; (R.B.R.); (M.S.d.C.); (E.F.d.C.)
- Correspondence:
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Costa IN, Ribeiro M, Silva Franco P, da Silva RJ, de Araújo TE, Milián ICB, Luz LC, Guirelli PM, Nakazato G, Mineo JR, Mineo TWP, Barbosa BF, Ferro EAV. Biogenic Silver Nanoparticles Can Control Toxoplasma gondii Infection in Both Human Trophoblast Cells and Villous Explants. Front Microbiol 2021; 11:623947. [PMID: 33552033 PMCID: PMC7858645 DOI: 10.3389/fmicb.2020.623947] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/31/2020] [Indexed: 01/08/2023] Open
Abstract
The combination of sulfadiazine and pyrimethamine plus folinic acid is the conventional treatment for congenital toxoplasmosis. However, this classical treatment presents teratogenic effects and bone marrow suppression. In this sense, new therapeutic strategies are necessary to reduce these effects and improve the control of infection. In this context, biogenic silver nanoparticles (AgNp-Bio) appear as a promising alternative since they have antimicrobial, antiviral, and antiparasitic activity. The purpose of this study to investigate the action of AgNp-Bio in BeWo cells, HTR-8/SVneo cells and villous explants and its effects against Toxoplasma gondii infection. Both cells and villous explants were treated with different concentrations of AgNp-Bio or combination of sulfadiazine + pyrimethamine (SDZ + PYZ) in order to verify the viability. After, cells and villi were infected and treated with AgNp-Bio or SDZ + PYZ in different concentrations to ascertain the parasite proliferation and cytokine production profile. AgNp-Bio treatment did not reduce the cell viability and villous explants. Significant reduction was observed in parasite replication in both cells and villous explants treated with silver nanoparticles and classical treatment. The AgNp-Bio treatment increased of IL-4 and IL-10 by BeWo cells, while HTR8/SVneo cells produced macrophage migration inhibitory factor (MIF) and IL-4. In the presence of T. gondii, the treatment induced high levels of MIF production by BeWo cells and IL-6 by HTR8SV/neo. In villous explants, the AgNp-Bio treatment downregulated production of IL-4, IL-6, and IL-8 after infection. In conclusion, AgNp-Bio can decrease T. gondii infection in trophoblast cells and villous explants. Therefore, this treatment demonstrated the ability to reduce the T. gondii proliferation with induction of inflammatory mediators in the cells and independent of mediators in chorionic villus which we consider the use of AgNp-Bio promising in the treatment of toxoplasmosis in BeWo and HTR8/SVneo cell models and in chorionic villi.
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Affiliation(s)
- Idessania Nazareth Costa
- Laboratory of Immunoparasitology of Neglected Diseases and Cancer, Center of Biological Sciences, State University of Londrina, Londrina, Brazil
| | - Mayara Ribeiro
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Priscila Silva Franco
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Rafaela José da Silva
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Thádia Evelyn de Araújo
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Iliana Claudia Balga Milián
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Luana Carvalho Luz
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Pâmela Mendonça Guirelli
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Gerson Nakazato
- Laboratory of Immunoparasitology of Neglected Diseases and Cancer, Center of Biological Sciences, State University of Londrina, Londrina, Brazil
| | - José Roberto Mineo
- Laboratory of Immunoparasitology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Tiago W. P. Mineo
- Laboratory of Immunoparasitology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Bellisa Freitas Barbosa
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Eloisa Amália Vieira Ferro
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
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Masatani T, Oyamada S, Inoue R, Tsujio M, Hatai H, Matsui T, Matsuo T. In vivo characterization of a Toxoplasma gondii strain TgCatJpTy1/k-3 isolated from a stray cat in Japan. Parasitol Int 2019; 74:101995. [PMID: 31634629 DOI: 10.1016/j.parint.2019.101995] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/15/2019] [Accepted: 09/22/2019] [Indexed: 11/26/2022]
Abstract
The Toxoplasma gondii strain TgCatJpTy1/k-3 (K-3), isolated from a stray cat in Tokyo, Japan, is categorized as a type II genotype. Since the K-3 strain is empirically known to form relatively larger cysts and exhibit weak pathogenesis in a mouse, it could serve as a useful model organism to study chronic T. gondii infection in the host. However, a detailed biological characterization of this strain had not been performed. In this study, we thoroughly assessed the K-3 strain in vivo using a mouse model. Tests indicated that pathogenicity of the K-3 strain was lower than that of the PLK strain, a clonal laboratory strain with a moderately pathogenic type II genotype. Further, cyst sizes of the K-3 strain were significantly larger than those of the PLK strain. Interestingly, K-3 cyst sizes in T. gondii-resistant ICR mice were larger than those in T. gondii-susceptible C57BL/6N mice. Our study suggests that the K-3 strain is suitable to study T. gondii cystogenesis and chronic infection, which are currently difficult to analyze using cell-adopted T. gondii strains.
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Affiliation(s)
- Tatsunori Masatani
- Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Shohei Oyamada
- Laboratory of Parasitology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Ryota Inoue
- Laboratory of Parasitology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Masashi Tsujio
- Laboratory of Anatomy, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Hitoshi Hatai
- Laboratory of Veterinary Histopathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Toshihiro Matsui
- Seisen University, Higashi Gotanda, Shinagawa-ku, Tokyo 141-8642, Japan
| | - Tomohide Matsuo
- Laboratory of Parasitology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan.
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Pereira ACA, Silva RJ, Franco PS, de Oliveira Gomes A, Souza G, Milian ICB, Ribeiro M, Rosini AM, Guirelli PM, Ramos ELP, Mineo TWP, Mineo JR, Silva NM, Ferro EAV, Barbosa BF. Cyclooxygenase (COX)-2 Inhibitors Reduce Toxoplasma gondii Infection and Upregulate the Pro-inflammatory Immune Response in Calomys callosus Rodents and Human Monocyte Cell Line. Front Microbiol 2019; 10:225. [PMID: 30809216 PMCID: PMC6379304 DOI: 10.3389/fmicb.2019.00225] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/28/2019] [Indexed: 12/27/2022] Open
Abstract
Toxoplasma gondii is able to infect a wide range of vertebrates, including humans. Studies show that cyclooxygenase-2 (COX-2) is a modulator of immune response in multiple types of infection, such as Trypanosoma cruzi. However, the role of COX-2 during T. gondii infection is still unclear. The aim of this study was to investigate the role of COX-2 during infection by moderately or highly virulent strains of T. gondii in Calomys callosus rodents and human THP-1 cells. C. callosus were infected with 50 cysts of T. gondii (ME49), treated with COX-2 inhibitors (meloxicam or celecoxib) and evaluated to check body weight and morbidity. After 40 days, brain and serum were collected for detection of T. gondii by real-time PCR and immunohistochemistry or cytokines by CBA. Furthermore, peritoneal macrophages or THP-1 cells, infected with RH strain or uninfected, were treated with meloxicam or celecoxib to evaluate the parasite proliferation by colorimetric assay and cytokine production by ELISA. Finally, in order to verify the role of prostaglandin E2 in COX-2 mechanism, THP-1 cells were infected, treated with meloxicam or celecoxib plus PGE2, and analyzed to parasite proliferation and cytokine production. The data showed that body weight and morbidity of the animals changed after infection by T. gondii, under both treatments. Immunohistochemistry and real-time PCR showed a reduction of T. gondii in brains of animals treated with both COX-2 inhibitors. Additionally, it was observed that both COX-2 inhibitors controlled the T. gondii proliferation in peritoneal macrophages and THP-1 cells, and the treatment with PGE2 restored the parasite growth in THP-1 cells blocked to COX-2. In the serum of Calomys, upregulation of pro-inflammatory cytokines was detected, while the supernatants of peritoneal macrophages and THP-1 cells demonstrated significant production of TNF and nitrite, or TNF, nitrite and MIF, respectively, under both COX-2 inhibitors. Finally, PGE2 treatment in THP-1 cells triggered downmodulation of pro-inflammatory mediators and upregulation of IL-8 and IL-10. Thus, COX-2 is an immune mediator involved in the susceptibility to T. gondii regardless of strain or cell types, since inhibition of this enzyme induced control of infection by upregulating important pro-inflammatory mediators against Toxoplasma.
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Affiliation(s)
- Ana Carolina Alcântara Pereira
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Rafaela José Silva
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Priscila Silva Franco
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Angelica de Oliveira Gomes
- Institute of Natural and Biological Sciences, Universidade Federal do Triângulo Mineiro, Uberaba, Brazil
| | - Guilherme Souza
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Iliana Claudia Balga Milian
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Mayara Ribeiro
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Alessandra Monteiro Rosini
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Pâmela Mendonça Guirelli
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Eliézer Lucas Pires Ramos
- Laboratory of Immunoparasitology, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Tiago Wilson Patriarca Mineo
- Laboratory of Immunoparasitology, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - José Roberto Mineo
- Laboratory of Immunoparasitology, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Neide Maria Silva
- Laboratory of Immunopathology, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Eloisa Amália Vieira Ferro
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Bellisa Freitas Barbosa
- Laboratory of Immunophysiology of Reproduction, Institute of Biomedical Sciences, Universidade Federal de Uberlândia, Uberlândia, Brazil
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Franco PS, Gois PSG, de Araújo TE, da Silva RJ, de Freitas Barbosa B, de Oliveira Gomes A, Ietta F, Dos Santos LA, Dos Santos MC, Mineo JR, Ferro EAV. Brazilian strains of Toxoplasma gondii are controlled by azithromycin and modulate cytokine production in human placental explants. J Biomed Sci 2019; 26:10. [PMID: 30665403 PMCID: PMC6340180 DOI: 10.1186/s12929-019-0503-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 01/10/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Toxoplasma gondii is a protozoan parasite that causes congenital toxoplasmosis by transplacental transmission. Parasite strains are genetically diverse and disease severity is related to the genotype. In Uberlândia city, Brazil, two virulent strains were isolated: TgChBrUD1 and TgChBrUD2. Congenital toxoplasmosis is more prevalent in South America compared to Europe, and more often associated with severe symptoms, usually as a result of infection with atypical strains. METHODS Considering that T. gondii has shown high genetic diversity in Brazil, the effectiveness of traditional treatment may not be the same, as more virulent strains of atypical genotypes may predominate. Thus, the aim of this study were to evaluate the Brazilian strain infection rate in human villous explants and the azithromycin efficacy with regard to the control of these strains compared to traditional therapy. Villi were infected with RH, ME49, TgChBrUD1 or TgChBrUD2 strains and treated with azithromycin, spiramycin or a combination of pyrimethamine plus sulfadiazine. The villous viability was analyzed by LDH assay and morphological analysis. Parasite proliferation, as well as production of cytokines was analyzed by qPCR and ELISA, respectively. Statistical analysis was performed using the GraphPad Prism 5.0. RESULTS The treatments were not toxic and TgChBrUD1 infected villi showed a higher parasite burden compared with others strains. Treatments significantly reduced the intracellular proliferation of T. gondii, regardless of the strain. TgChBrUD1-infected villi produced a larger amount of MIF, IL-6 and TGF-β1 compared with other infected villi. Azithromycin treatment increased MIF production by RH- or TgChBrUD2-infected villi, but in ME49- or TgChBrUD1-infected villi, the MIF production was not altered by treatment. On the other hand, azithromycin treatment induced lower IL-6 production by ME49- or TgChBrUD1-infected villi. CONCLUSIONS Azithromycin treatment was effective against T. gondii Brazilian strains compared with conventional treatment. Also, the TgChBrUD1 strain replicated more in villi and modulated important cytokines involved in parasite control, showing that different strains use different strategies to evade the host immune response and ensure their survival.
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Affiliation(s)
- Priscila Silva Franco
- Laboratório de Imunofisiologia da Reprodução, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Av. Pará, 1720, Building: 2B, CEP, Uberlândia, 38405-320, Brazil
| | - Paula Suellen Guimarães Gois
- Laboratório de Imunofisiologia da Reprodução, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Av. Pará, 1720, Building: 2B, CEP, Uberlândia, 38405-320, Brazil
| | - Thádia Evelyn de Araújo
- Laboratório de Imunofisiologia da Reprodução, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Av. Pará, 1720, Building: 2B, CEP, Uberlândia, 38405-320, Brazil
| | - Rafaela José da Silva
- Laboratório de Imunofisiologia da Reprodução, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Av. Pará, 1720, Building: 2B, CEP, Uberlândia, 38405-320, Brazil
| | - Bellisa de Freitas Barbosa
- Laboratório de Imunofisiologia da Reprodução, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Av. Pará, 1720, Building: 2B, CEP, Uberlândia, 38405-320, Brazil
| | - Angelica de Oliveira Gomes
- Laboratório de Biologia Celular, Instituto de Ciências Biomédicas e Naturais, Universidade Federal do Triângulo Mineiro, Uberaba, Brazil
| | - Francesca Ietta
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Lara Affonso Dos Santos
- Laboratório de Imunofisiologia da Reprodução, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Av. Pará, 1720, Building: 2B, CEP, Uberlândia, 38405-320, Brazil
| | - Maria Célia Dos Santos
- Laboratório de Imunofisiologia da Reprodução, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Av. Pará, 1720, Building: 2B, CEP, Uberlândia, 38405-320, Brazil
| | - José Roberto Mineo
- Laboratório de Imunoparasitologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Eloisa Amália Vieira Ferro
- Laboratório de Imunofisiologia da Reprodução, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Av. Pará, 1720, Building: 2B, CEP, Uberlândia, 38405-320, Brazil.
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Ribeiro M, Franco PS, Lopes-Maria JB, Angeloni MB, Barbosa BDF, Gomes ADO, Castro AS, Silva RJD, Oliveira FCD, Milian ICB, Martins-Filho OA, Ietta F, Mineo JR, Ferro EAV. Azithromycin treatment is able to control the infection by two genotypes of Toxoplasma gondii in human trophoblast BeWo cells. Exp Parasitol 2017; 181:111-118. [PMID: 28803905 DOI: 10.1016/j.exppara.2017.08.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 07/28/2017] [Accepted: 08/08/2017] [Indexed: 10/19/2022]
Abstract
Trophoblast infection by Toxoplasma gondii plays a pivotal role in the vertical transmission of toxoplasmosis. Here, we investigate whether the antibiotic therapy with azithromycin, spiramycin and sulfadiazine/pyrimethamine are effective to control trophoblast infection by two Brazilian T. gondii genotypes, TgChBrUD1 or TgChBrUD2. Two antibiotic protocols were evaluated, as follow: i) pre-treatment of T. gondii-tachyzoites with selected antibiotics prior trophoblast infection and ii) post-treatment of infected trophoblasts. The infection index/replication and the impact of the antibiotic therapy on the cytokine milieu were characterized. It was observed that TgChBrUD2 infection induced lower infection index/replication as compared to TgChBrUD1. Regardless the therapeutic protocol, azithromycin was more effective to control the trophoblast infection with both genotypes when compared to conventional antibiotics. Azithromycin induced higher IL-12 production in TgChBrUD1-infected cells that may synergize the anti-parasitic effect. In contrast, the effectiveness of azithromycin to control the TgChBrUD2-infection was not associated with the IL-12 production. BeWo-trophoblasts display distinct susceptibility to T. gondii genotypes and the azithromycin treatment showed to be more effective than conventional antibiotics to control the T. gondii infection/replication regardless the parasite genotype.
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Affiliation(s)
- Mayara Ribeiro
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, CEP 38400 902, Brazil
| | - Priscila Silva Franco
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, CEP 38400 902, Brazil
| | - Janice Buiate Lopes-Maria
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, CEP 38400 902, Brazil
| | - Mariana Bodini Angeloni
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, CEP 38400 902, Brazil
| | - Bellisa de Freitas Barbosa
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, CEP 38400 902, Brazil
| | - Angelica de Oliveira Gomes
- Department of Structural Biology, Institute of Biological Science, Federal University of Uberaba, Rua Frei Paulino, 30, Uberaba, CEP 38025 180, Brazil
| | - Andressa Silva Castro
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, CEP 38400 902, Brazil
| | - Rafaela José da Silva
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, CEP 38400 902, Brazil
| | - Fernanda Chaves de Oliveira
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, CEP 38400 902, Brazil
| | - Iliana Claudia Balga Milian
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, CEP 38400 902, Brazil
| | - Olindo Assis Martins-Filho
- Laboratory of Chagas Disease, René Rachou Research Center, Fundação Oswaldo Cruz, 30190-002 Belo Horizonte, MG, Brazil
| | - Francesca Ietta
- Department of Life Science, University of Siena, Aldo Moro Road 2, Siena, Italy
| | - José Roberto Mineo
- Laboratory of Immunoparasitology, Department of Immunology, Microbiology and Parasitology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, CEP 38400 902, Brazil
| | - Eloisa Amália Vieira Ferro
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia, Av. Pará, 1720, Uberlândia, CEP 38400 902, Brazil.
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Toxoplasma gondii and Neospora caninum in Free-Range Chickens in Henan Province of China. BIOMED RESEARCH INTERNATIONAL 2016; 2016:8290536. [PMID: 27274992 PMCID: PMC4871953 DOI: 10.1155/2016/8290536] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 04/01/2016] [Accepted: 04/12/2016] [Indexed: 11/17/2022]
Abstract
Background. Chickens serve as an intermediate host for Toxoplasma gondii and Neospora caninum; infection of free-range (FR) chickens with these organisms is a useful indicator of soil and environmental contamination with oocysts. A total of 700 FR chicken serum samples and 300 heart samples were collected from Henan province from March to July 2015. Antibodies to T. gondii were found in 18.86% (132/700) of the chickens by modified agglutination test (cut-off 1 : 25), while 23.14% (162/700) were positive for N. caninum by indirect fluorescent antibody test (cut-off 1 : 25). T. gondii DNA was detected in the myocardium digestion liquids of 4/25 (16%) FR chickens. The PCR results of N. caninum DNA from FR chicken myocardium digestion liquids (n = 25) were all negative. Attempts to isolate viable T. gondii were unsuccessful. The results showed that there were antibodies to T. gondii and N. caninum in FR chickens from Henan province. Accordingly, effective control of feces from cats and dogs and improved pets hygiene habits were needed. To the author's knowledge, this is the first report of the presence of N. caninum antibody in chickens from China.
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Franco PS, da Silva NM, de Freitas Barbosa B, de Oliveira Gomes A, Ietta F, Shwab EK, Su C, Mineo JR, Ferro EAV. Calomys callosus chronically infected by Toxoplasma gondii clonal type II strain and reinfected by Brazilian strains is not able to prevent vertical transmission. Front Microbiol 2015; 6:181. [PMID: 25806028 PMCID: PMC4354403 DOI: 10.3389/fmicb.2015.00181] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 02/19/2015] [Indexed: 11/13/2022] Open
Abstract
Considering that Toxoplasma gondii has shown high genetic diversity in Brazil, the aim of this study was to determine whether Calomys callosus chronically infected by the ME-49 strain might be susceptible to reinfection by these Brazilian strains, including vertical transmission of the parasite. Survival curves were analyzed in non-pregnant females chronically infected with ME-49 and reinfected with the TgChBrUD1 or TgChBrUD2 strain, and vertical transmission was analyzed after reinfection of pregnant females with these same strains. On the 19th day of pregnancy (dop), placentas, uteri, fetuses, liver, spleen, and lung were processed for detection of the parasite. Blood samples were collected for humoral and cellular immune response analyses. All non-pregnant females survived after reinfection and no changes were observed in body weight and morbidity scores. In pregnant females, parasites were detected in the placentas of ME-49 chronically infected females and reinfected females, but were only detected in the fetuses of reinfected females. TgChBrUD2 reinfected females showed more impaired pregnancy outcomes, presenting higher numbers of animals with fetal loss and a higher resorption rate, in parallel with higher levels of pro-inflammatory cytokines and IgG2a subclass antibodies. Vertical transmission resulting from chronic infection of immunocompetent C. callosus is considered a rare event, being attributed instead to either reactivation or reinfection. That is, the pregnancy may be responsible for reactivation of the latent infection or the reinfection may promote T. gondii vertical transmission. Our results clearly demonstrate that, during pregnancy, protection against T. gondii can be breached after reinfection with parasites belonging to different genotypes, particularly when non-clonal strains are involved in this process and in this case the reinfection promoted vertical transmission of both type II and Brazilian T. gondii strains.
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Affiliation(s)
- Priscila S Franco
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia , Uberlândia, Brazil
| | - Neide M da Silva
- Laboratory of Immunopathology, Institute of Biomedical Sciences, Federal University of Uberlândia , Uberlândia, Brazil
| | - Bellisa de Freitas Barbosa
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia , Uberlândia, Brazil
| | - Angelica de Oliveira Gomes
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia , Uberlândia, Brazil
| | - Francesca Ietta
- Department of Life Sciences, University of Siena , Siena, Italy
| | - E K Shwab
- Department of Microbiology, The University of Tennessee , Knoxville, TN, USA
| | - Chunlei Su
- Department of Microbiology, The University of Tennessee , Knoxville, TN, USA
| | - José R Mineo
- Laboratory of Immunoparasitology, Department of Immunology, Microbiology and Parasitology, Federal University of Uberlândia , Uberlândia, Brazil
| | - Eloisa A V Ferro
- Laboratory of Immunophysiology of Reproduction, Department of Histology and Embryology, Federal University of Uberlândia , Uberlândia, Brazil
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