Parasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantumNaturally Infected Dogs
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2015 |
| Outros Autores: | , , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Institucional da FIOCRUZ (ARCA) |
| Texto Completo: | https://www.arca.fiocruz.br/handle/icict/14006 |
Resumo: | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Pesquisas em Leishmaniose. Rio de Janeiro, RJ, Brasil. |
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Cavalcanti, Amanda S.Alves, Marcelo RibeiroPereira, Luiza de O. R.Mestre, Gustavo LeandroFerreira, Anna Beatriz RobottomMorgado, Fernanda N.Boité, Mariana C.Cupolillo, ElisaMoraes, Milton O.Porrozzi, Renato2016-04-28T12:30:01Z2016-04-28T12:30:01Z2015CAVALCANTI, Amanda S. et al. Parasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantum-Naturally Infected Dogs. Plos One, v. 10, n. 4, p. 1-17, Apr. 2015.1932-6203https://www.arca.fiocruz.br/handle/icict/1400610.1371/journal.pone.0123009engPublic Library of ScienceParasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantumNaturally Infected Dogsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleFundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Pesquisas em Leishmaniose. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Pesquisa Clínica Evandro Chagas. Laboratório de Pesquisa Clínica em DST-AIDS. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório Interdisciplinar de Pesquisas Médicas. Rio de Janeiro, RJ, Brasil.Secretaria Municipal de Saúde de Cuiabá. Centro de Controle de Zoonoses. Cuiabá, MT, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hanseníase. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Pesquisas em Leishmaniose. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Pesquisas em Leishmaniose. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hanseníase. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Pesquisas em Leishmaniose. Rio de Janeiro, RJ, Brasil.Canine Visceral Leishmaniasis (CVL) shares many aspects with the human disease and dogs are considered the main urban reservoir of L. infantum in zoonotic VL. Infected dogs develop progressive disease with a large clinical spectrum. A complex balance between the parasite and the genetic/immunological background of the host are decisive for infection evolution and clinical outcome. This study comprised 92 Leishmania infected mongrel dogs of various ages from Mato Grosso, Brazil. Spleen samples were collected for determining parasite load, humoral response, cytokine mRNA expression and histopathology alterations. By real-time PCR for the ssrRNA Leishmania gene, two groups were defined; a low (lowP, n = 46) and a high parasite load groups (highP, n = 42). When comparing these groups, results show variable individual humoral immune response with higher specific IgG production in infected animals but with a notable difference in CVL rapid test optical densities (DPP) between highP and lowP groups. Splenic architecture disruption was characterized by disorganization of white pulp, more evident in animals with high parasitism. All cytokine transcripts in spleen were less expressed in highP than lowP groups with a large heterogeneous variation in response. Individual correlation analysis between cytokine expression and parasite load revealed a negative correlation for both pro-inflammatory cytokines: IFNγ, IL-12, IL-6; and anti-inflammatory cytokines: IL-10 and TGFβ. TNF showed the best negative correlation (r2 = 0.231; p<0.001). Herein we describe impairment on mRNA cytokine expression in leishmania infected dogs with high parasite load associated with a structural modification in the splenic lymphoid micro-architecture. We also discuss the possible mechanism responsible for the uncontrolled parasite growth and clinical outcome.Canine Visceral Leishmaniasis (CVL)Mato GrossoCytokine mRNAParasite LoadLeishmania infantumSpleen ArchitectureBaçoRNA MensageiroCarga ParasitáriaLeishmania infantumCãesMato Grossoinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FIOCRUZ (ARCA)instname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZLICENSElicense.txtlicense.txttext/plain; charset=utf-82991https://www.arca.fiocruz.br/bitstream/icict/14006/1/license.txt5a560609d32a3863062d77ff32785d58MD51ORIGINALamanda_cavalcanti_etal_IOC_2015.PDFamanda_cavalcanti_etal_IOC_2015.PDFapplication/pdf2518307https://www.arca.fiocruz.br/bitstream/icict/14006/2/amanda_cavalcanti_etal_IOC_2015.PDF9ca12a249b1706e19702c1213fe050b5MD52TEXTamanda_cavalcanti_etal_IOC_2015.PDF.txtamanda_cavalcanti_etal_IOC_2015.PDF.txtExtracted 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| dc.title.pt_BR.fl_str_mv |
Parasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantumNaturally Infected Dogs |
| title |
Parasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantumNaturally Infected Dogs |
| spellingShingle |
Parasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantumNaturally Infected Dogs Cavalcanti, Amanda S. Canine Visceral Leishmaniasis (CVL) Mato Grosso Cytokine mRNA Parasite Load Leishmania infantum Spleen Architecture Baço RNA Mensageiro Carga Parasitária Leishmania infantum Cães Mato Grosso |
| title_short |
Parasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantumNaturally Infected Dogs |
| title_full |
Parasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantumNaturally Infected Dogs |
| title_fullStr |
Parasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantumNaturally Infected Dogs |
| title_full_unstemmed |
Parasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantumNaturally Infected Dogs |
| title_sort |
Parasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantumNaturally Infected Dogs |
| author |
Cavalcanti, Amanda S. |
| author_facet |
Cavalcanti, Amanda S. Alves, Marcelo Ribeiro Pereira, Luiza de O. R. Mestre, Gustavo Leandro Ferreira, Anna Beatriz Robottom Morgado, Fernanda N. Boité, Mariana C. Cupolillo, Elisa Moraes, Milton O. Porrozzi, Renato |
| author_role |
author |
| author2 |
Alves, Marcelo Ribeiro Pereira, Luiza de O. R. Mestre, Gustavo Leandro Ferreira, Anna Beatriz Robottom Morgado, Fernanda N. Boité, Mariana C. Cupolillo, Elisa Moraes, Milton O. Porrozzi, Renato |
| author2_role |
author author author author author author author author author |
| dc.contributor.author.fl_str_mv |
Cavalcanti, Amanda S. Alves, Marcelo Ribeiro Pereira, Luiza de O. R. Mestre, Gustavo Leandro Ferreira, Anna Beatriz Robottom Morgado, Fernanda N. Boité, Mariana C. Cupolillo, Elisa Moraes, Milton O. Porrozzi, Renato |
| dc.subject.en.pt_BR.fl_str_mv |
Canine Visceral Leishmaniasis (CVL) Mato Grosso Cytokine mRNA Parasite Load Leishmania infantum Spleen Architecture |
| topic |
Canine Visceral Leishmaniasis (CVL) Mato Grosso Cytokine mRNA Parasite Load Leishmania infantum Spleen Architecture Baço RNA Mensageiro Carga Parasitária Leishmania infantum Cães Mato Grosso |
| dc.subject.decs.pt_BR.fl_str_mv |
Baço RNA Mensageiro Carga Parasitária Leishmania infantum Cães Mato Grosso |
| description |
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Pesquisas em Leishmaniose. Rio de Janeiro, RJ, Brasil. |
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2015 |
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2015 |
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2016-04-28T12:30:01Z |
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2016-04-28T12:30:01Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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CAVALCANTI, Amanda S. et al. Parasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantum-Naturally Infected Dogs. Plos One, v. 10, n. 4, p. 1-17, Apr. 2015. |
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https://www.arca.fiocruz.br/handle/icict/14006 |
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1932-6203 |
| dc.identifier.doi.none.fl_str_mv |
10.1371/journal.pone.0123009 |
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CAVALCANTI, Amanda S. et al. Parasite Load Induces Progressive Spleen Architecture Breakage and Impairs Cytokine mRNA Expression in Leishmania infantum-Naturally Infected Dogs. Plos One, v. 10, n. 4, p. 1-17, Apr. 2015. 1932-6203 10.1371/journal.pone.0123009 |
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Public Library of Science |
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