Leishmania mexicana amazonensis: heterogeneity in 5'-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection

Detalhes bibliográficos
Autor(a) principal: Côrte-Real, Suzana
Data de Publicação: 1988
Outros Autores: Grimaldi Juńior, Gabriel, Meirelles, Maria de Nazareth Leal de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da FIOCRUZ (ARCA)
Texto Completo: https://www.arca.fiocruz.br/handle/icict/36992
Resumo: Um estudo sobre o grau de maturação das células do Sistema Fagocítico Mononuclear foi realizado durante a infecção in vivo e in vitro com a Leishmania mexicana amazonensis. A caracterização da diferenciação das células fagocíticas foi obtida com a localização ultraestrutural de dois marcadores enzimáticos bam conhecidos: a enzima 5'-Nucleotidase marcadora de membrana plasmática de células maduras e a enzima peroxidase, presente em grânulos, marcadora de células imaturas. A atividade da enzima 5'-Nucleotidase foi encontrada apenas em alguns macrófagos, presentes no foco inflamatório, em projeções da membrana plasmática e em algumas vesículas citoplasmáticas. Macrófagos peritoneais de camundongo apresentaram a mesma reatividade para este marcador. Contudo a análise da atividade peroxidásica demonstrou a predominância da presença de fagócitos mononucleares imaturos nas lesões crônicas induzidas neste sistema por Leishmania mexicana amazonensis.
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spelling Côrte-Real, SuzanaGrimaldi Juńior, GabrielMeirelles, Maria de Nazareth Leal de2019-11-12T12:16:13Z2019-11-12T12:16:13Z1988CÔRTE-REAL, Suzana et al. Leishmania mexicana amazonensis: heterogeneity in 5-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 83, n. 1, p. 113-121, Jan./Mar. 1988.0074-0276https://www.arca.fiocruz.br/handle/icict/3699210.1590/s0074-027619880001000151678-8060Um estudo sobre o grau de maturação das células do Sistema Fagocítico Mononuclear foi realizado durante a infecção in vivo e in vitro com a Leishmania mexicana amazonensis. A caracterização da diferenciação das células fagocíticas foi obtida com a localização ultraestrutural de dois marcadores enzimáticos bam conhecidos: a enzima 5'-Nucleotidase marcadora de membrana plasmática de células maduras e a enzima peroxidase, presente em grânulos, marcadora de células imaturas. A atividade da enzima 5'-Nucleotidase foi encontrada apenas em alguns macrófagos, presentes no foco inflamatório, em projeções da membrana plasmática e em algumas vesículas citoplasmáticas. Macrófagos peritoneais de camundongo apresentaram a mesma reatividade para este marcador. Contudo a análise da atividade peroxidásica demonstrou a predominância da presença de fagócitos mononucleares imaturos nas lesões crônicas induzidas neste sistema por Leishmania mexicana amazonensis.The degree of maturation of cells of the Mononuclear Phagocyte System (MPS), during in vivo and in vitro infection by Leishmania mexicana amazonensis, was evaluated in this study. The macrophages' differentiation was assayed by cytochemical characterization at the ultrastructural level, using two well-established markers: 5'-nucleotidase enzyme activity, for revealing the mature cells; and the peroxidase activity present in the cell granules to demonstrate immature mononuclear phagocytes. Only a few macrophages, demonstrating 5'-nucleotidase positive reaction in both the plasma membrane and within their cytoplasmic vesicles, were found scattered in the chronic inflammation at the L. m. amazonensis lesions in albino mice. However, by the peroxidase activity analysis, we were also able to demonstrate the presence of immature MPS cells, which predominate, together with parasitized vacuolated macrophages, in chronic lesions induced in this system by L. m. amazonensis. The implications of these results on the pathogenesis of murine cutaneous leishmaniasis are discussed.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Ultraestrutura e Biologia Celular. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Imunologia. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Ultraestrutura e Biologia Celular. Rio de Janeiro, RJ, Brasil.engFundação Oswaldo Cruz. Instituto Oswaldo CruzLeishmania mexicana amazonensis (L. m. amazonensis)Fagócito mononuclear imaturoMacrófago maturoMacrófago peritonealLesões cutâneas5'Nucleotidase (E. C. 3. 1. 3. 5)Peroxidase (E. C. 1. 11. 1. 7)Leishmania mexicana amazonensis (L. m. amazonensis)Peroxidase (E. C. 1. 11. 1. 7)5'Nucleotidase (E. C. 3. 1. 3. 5)Immature mononuclear phagocyteMature macrophagesPeriotoneal macrophagesCutaneous lesionsLeishmania mexicana amazonensis: heterogeneity in 5'-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infectioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FIOCRUZ (ARCA)instname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZLICENSElicense.txtlicense.txttext/plain; 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dc.title.pt_BR.fl_str_mv Leishmania mexicana amazonensis: heterogeneity in 5'-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection
title Leishmania mexicana amazonensis: heterogeneity in 5'-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection
spellingShingle Leishmania mexicana amazonensis: heterogeneity in 5'-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection
Côrte-Real, Suzana
Leishmania mexicana amazonensis (L. m. amazonensis)
Fagócito mononuclear imaturo
Macrófago maturo
Macrófago peritoneal
Lesões cutâneas
5'Nucleotidase (E. C. 3. 1. 3. 5)
Peroxidase (E. C. 1. 11. 1. 7)
Leishmania mexicana amazonensis (L. m. amazonensis)
Peroxidase (E. C. 1. 11. 1. 7)
5'Nucleotidase (E. C. 3. 1. 3. 5)
Immature mononuclear phagocyte
Mature macrophages
Periotoneal macrophages
Cutaneous lesions
title_short Leishmania mexicana amazonensis: heterogeneity in 5'-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection
title_full Leishmania mexicana amazonensis: heterogeneity in 5'-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection
title_fullStr Leishmania mexicana amazonensis: heterogeneity in 5'-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection
title_full_unstemmed Leishmania mexicana amazonensis: heterogeneity in 5'-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection
title_sort Leishmania mexicana amazonensis: heterogeneity in 5'-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection
author Côrte-Real, Suzana
author_facet Côrte-Real, Suzana
Grimaldi Juńior, Gabriel
Meirelles, Maria de Nazareth Leal de
author_role author
author2 Grimaldi Juńior, Gabriel
Meirelles, Maria de Nazareth Leal de
author2_role author
author
dc.contributor.author.fl_str_mv Côrte-Real, Suzana
Grimaldi Juńior, Gabriel
Meirelles, Maria de Nazareth Leal de
dc.subject.other.pt_BR.fl_str_mv Leishmania mexicana amazonensis (L. m. amazonensis)
Fagócito mononuclear imaturo
Macrófago maturo
Macrófago peritoneal
Lesões cutâneas
5'Nucleotidase (E. C. 3. 1. 3. 5)
Peroxidase (E. C. 1. 11. 1. 7)
topic Leishmania mexicana amazonensis (L. m. amazonensis)
Fagócito mononuclear imaturo
Macrófago maturo
Macrófago peritoneal
Lesões cutâneas
5'Nucleotidase (E. C. 3. 1. 3. 5)
Peroxidase (E. C. 1. 11. 1. 7)
Leishmania mexicana amazonensis (L. m. amazonensis)
Peroxidase (E. C. 1. 11. 1. 7)
5'Nucleotidase (E. C. 3. 1. 3. 5)
Immature mononuclear phagocyte
Mature macrophages
Periotoneal macrophages
Cutaneous lesions
dc.subject.en.pt_BR.fl_str_mv Leishmania mexicana amazonensis (L. m. amazonensis)
Peroxidase (E. C. 1. 11. 1. 7)
5'Nucleotidase (E. C. 3. 1. 3. 5)
Immature mononuclear phagocyte
Mature macrophages
Periotoneal macrophages
Cutaneous lesions
description Um estudo sobre o grau de maturação das células do Sistema Fagocítico Mononuclear foi realizado durante a infecção in vivo e in vitro com a Leishmania mexicana amazonensis. A caracterização da diferenciação das células fagocíticas foi obtida com a localização ultraestrutural de dois marcadores enzimáticos bam conhecidos: a enzima 5'-Nucleotidase marcadora de membrana plasmática de células maduras e a enzima peroxidase, presente em grânulos, marcadora de células imaturas. A atividade da enzima 5'-Nucleotidase foi encontrada apenas em alguns macrófagos, presentes no foco inflamatório, em projeções da membrana plasmática e em algumas vesículas citoplasmáticas. Macrófagos peritoneais de camundongo apresentaram a mesma reatividade para este marcador. Contudo a análise da atividade peroxidásica demonstrou a predominância da presença de fagócitos mononucleares imaturos nas lesões crônicas induzidas neste sistema por Leishmania mexicana amazonensis.
publishDate 1988
dc.date.issued.fl_str_mv 1988
dc.date.accessioned.fl_str_mv 2019-11-12T12:16:13Z
dc.date.available.fl_str_mv 2019-11-12T12:16:13Z
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dc.identifier.citation.fl_str_mv CÔRTE-REAL, Suzana et al. Leishmania mexicana amazonensis: heterogeneity in 5-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 83, n. 1, p. 113-121, Jan./Mar. 1988.
dc.identifier.uri.fl_str_mv https://www.arca.fiocruz.br/handle/icict/36992
dc.identifier.issn.pt_BR.fl_str_mv 0074-0276
dc.identifier.doi.none.fl_str_mv 10.1590/s0074-02761988000100015
dc.identifier.eissn.none.fl_str_mv 1678-8060
identifier_str_mv CÔRTE-REAL, Suzana et al. Leishmania mexicana amazonensis: heterogeneity in 5-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 83, n. 1, p. 113-121, Jan./Mar. 1988.
0074-0276
10.1590/s0074-02761988000100015
1678-8060
url https://www.arca.fiocruz.br/handle/icict/36992
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dc.publisher.none.fl_str_mv Fundação Oswaldo Cruz. Instituto Oswaldo Cruz
publisher.none.fl_str_mv Fundação Oswaldo Cruz. Instituto Oswaldo Cruz
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