Inhibition of human neutrophil apoptosis by Paracoccidioides brasiliensis: Role of interleukin-8

Detalhes bibliográficos
Autor(a) principal: Acorci, M. J. [UNESP]
Data de Publicação: 2009
Outros Autores: Dias-Melicio, L. A. [UNESP], Golim, M. A. [UNESP], Bordon-Graciani, A. P. [UNESP], Peraçoli, M. T S [UNESP], Soares, A. M V C [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1111/j.1365-3083.2008.02199.x
http://hdl.handle.net/11449/70928
Resumo: Paracoccidioidomycosis (PCM) is a systemic mycosis caused by Paracoccidiodes brasiliensis that presents a wide spectrum of clinical manifestations. Because of the great number of neutrophils polymorphonuclear neutrophils (PMN) found in the P. brasiliensis granuloma, studies have been done to evaluate the role of these cells during the development of the infection. This fungus is found intracellularly in PMN and monocytes/macrophages, suggesting that it is capable of evading damage and surviving inside these cells. Thus, in the present study, we investigated whether P. brasiliensis can prolong the lifetime of PMN, and if this process would be related with IL-8 levels. PMN apoptosis and intracellular levels of IL-8 were analysed by flow cytometry and culture supernatants IL-8 levels were evaluated by enzyme-linked immunosorbent assay. We found that coincubation with P. brasiliensis yeast cells results in an inhibition of PMN apoptosis, which was associated with increase in IL-8 production by these cells. Cocultures treatment with monoclonal antibody anti-IL-8 reversed the inhibitory effect of P. brasiliensis on PMN apoptosis, besides to increase spontaneous apoptosis of these cells. These data show that, in contrast to other microbial pathogens that drive phagocytes into apoptosis to escape killing, P. brasiliensis can extend the lifetime of normal human PMN by inducing autocrine IL-8 production. © 2008 The Authors.
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spelling Inhibition of human neutrophil apoptosis by Paracoccidioides brasiliensis: Role of interleukin-8interleukin 8interleukin 8 antibodyadultapoptosiscell culturecell levelcell survivalcontrolled studycytokine productioncytokine releaseenzyme linked immunosorbent assayflow cytometryhumanhuman cellneutrophilnormal humanParacoccidioides brasiliensisphagocytepriority journalyeast cellAdultAntibodies, MonoclonalApoptosisHumansInterleukin-8Middle AgedNeutrophilsParacoccidioidesPhagocytosisParacoccidioidomycosis (PCM) is a systemic mycosis caused by Paracoccidiodes brasiliensis that presents a wide spectrum of clinical manifestations. Because of the great number of neutrophils polymorphonuclear neutrophils (PMN) found in the P. brasiliensis granuloma, studies have been done to evaluate the role of these cells during the development of the infection. This fungus is found intracellularly in PMN and monocytes/macrophages, suggesting that it is capable of evading damage and surviving inside these cells. Thus, in the present study, we investigated whether P. brasiliensis can prolong the lifetime of PMN, and if this process would be related with IL-8 levels. PMN apoptosis and intracellular levels of IL-8 were analysed by flow cytometry and culture supernatants IL-8 levels were evaluated by enzyme-linked immunosorbent assay. We found that coincubation with P. brasiliensis yeast cells results in an inhibition of PMN apoptosis, which was associated with increase in IL-8 production by these cells. Cocultures treatment with monoclonal antibody anti-IL-8 reversed the inhibitory effect of P. brasiliensis on PMN apoptosis, besides to increase spontaneous apoptosis of these cells. These data show that, in contrast to other microbial pathogens that drive phagocytes into apoptosis to escape killing, P. brasiliensis can extend the lifetime of normal human PMN by inducing autocrine IL-8 production. © 2008 The Authors.Department of Microbiology and Immunology Biosciences Institute São Paulo State University, Botucatu, SPBotucatu Blood Center School of Medicine São Paulo State University, Botucatu, SPDepartment of Micro-biology and Immunology Biosciences Institute São Paulo State University, Botucatu, CEP 18618-000, SPDepartment of Microbiology and Immunology Biosciences Institute São Paulo State University, Botucatu, SPBotucatu Blood Center School of Medicine São Paulo State University, Botucatu, SPDepartment of Micro-biology and Immunology Biosciences Institute São Paulo State University, Botucatu, CEP 18618-000, SPUniversidade Estadual Paulista (Unesp)Acorci, M. J. [UNESP]Dias-Melicio, L. A. [UNESP]Golim, M. A. [UNESP]Bordon-Graciani, A. P. [UNESP]Peraçoli, M. T S [UNESP]Soares, A. M V C [UNESP]2014-05-27T11:23:52Z2014-05-27T11:23:52Z2009-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article73-79application/pdfhttp://dx.doi.org/10.1111/j.1365-3083.2008.02199.xScandinavian Journal of Immunology, v. 69, n. 2, p. 73-79, 2009.0300-94751365-3083http://hdl.handle.net/11449/7092810.1111/j.1365-3083.2008.02199.x2-s2.0-588491334572-s2.0-58849133457.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScandinavian Journal of Immunology2.3140,8910,891info:eu-repo/semantics/openAccess2023-10-05T06:07:16Zoai:repositorio.unesp.br:11449/70928Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:05:41.222763Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Inhibition of human neutrophil apoptosis by Paracoccidioides brasiliensis: Role of interleukin-8
title Inhibition of human neutrophil apoptosis by Paracoccidioides brasiliensis: Role of interleukin-8
spellingShingle Inhibition of human neutrophil apoptosis by Paracoccidioides brasiliensis: Role of interleukin-8
Acorci, M. J. [UNESP]
interleukin 8
interleukin 8 antibody
adult
apoptosis
cell culture
cell level
cell survival
controlled study
cytokine production
cytokine release
enzyme linked immunosorbent assay
flow cytometry
human
human cell
neutrophil
normal human
Paracoccidioides brasiliensis
phagocyte
priority journal
yeast cell
Adult
Antibodies, Monoclonal
Apoptosis
Humans
Interleukin-8
Middle Aged
Neutrophils
Paracoccidioides
Phagocytosis
title_short Inhibition of human neutrophil apoptosis by Paracoccidioides brasiliensis: Role of interleukin-8
title_full Inhibition of human neutrophil apoptosis by Paracoccidioides brasiliensis: Role of interleukin-8
title_fullStr Inhibition of human neutrophil apoptosis by Paracoccidioides brasiliensis: Role of interleukin-8
title_full_unstemmed Inhibition of human neutrophil apoptosis by Paracoccidioides brasiliensis: Role of interleukin-8
title_sort Inhibition of human neutrophil apoptosis by Paracoccidioides brasiliensis: Role of interleukin-8
author Acorci, M. J. [UNESP]
author_facet Acorci, M. J. [UNESP]
Dias-Melicio, L. A. [UNESP]
Golim, M. A. [UNESP]
Bordon-Graciani, A. P. [UNESP]
Peraçoli, M. T S [UNESP]
Soares, A. M V C [UNESP]
author_role author
author2 Dias-Melicio, L. A. [UNESP]
Golim, M. A. [UNESP]
Bordon-Graciani, A. P. [UNESP]
Peraçoli, M. T S [UNESP]
Soares, A. M V C [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Acorci, M. J. [UNESP]
Dias-Melicio, L. A. [UNESP]
Golim, M. A. [UNESP]
Bordon-Graciani, A. P. [UNESP]
Peraçoli, M. T S [UNESP]
Soares, A. M V C [UNESP]
dc.subject.por.fl_str_mv interleukin 8
interleukin 8 antibody
adult
apoptosis
cell culture
cell level
cell survival
controlled study
cytokine production
cytokine release
enzyme linked immunosorbent assay
flow cytometry
human
human cell
neutrophil
normal human
Paracoccidioides brasiliensis
phagocyte
priority journal
yeast cell
Adult
Antibodies, Monoclonal
Apoptosis
Humans
Interleukin-8
Middle Aged
Neutrophils
Paracoccidioides
Phagocytosis
topic interleukin 8
interleukin 8 antibody
adult
apoptosis
cell culture
cell level
cell survival
controlled study
cytokine production
cytokine release
enzyme linked immunosorbent assay
flow cytometry
human
human cell
neutrophil
normal human
Paracoccidioides brasiliensis
phagocyte
priority journal
yeast cell
Adult
Antibodies, Monoclonal
Apoptosis
Humans
Interleukin-8
Middle Aged
Neutrophils
Paracoccidioides
Phagocytosis
description Paracoccidioidomycosis (PCM) is a systemic mycosis caused by Paracoccidiodes brasiliensis that presents a wide spectrum of clinical manifestations. Because of the great number of neutrophils polymorphonuclear neutrophils (PMN) found in the P. brasiliensis granuloma, studies have been done to evaluate the role of these cells during the development of the infection. This fungus is found intracellularly in PMN and monocytes/macrophages, suggesting that it is capable of evading damage and surviving inside these cells. Thus, in the present study, we investigated whether P. brasiliensis can prolong the lifetime of PMN, and if this process would be related with IL-8 levels. PMN apoptosis and intracellular levels of IL-8 were analysed by flow cytometry and culture supernatants IL-8 levels were evaluated by enzyme-linked immunosorbent assay. We found that coincubation with P. brasiliensis yeast cells results in an inhibition of PMN apoptosis, which was associated with increase in IL-8 production by these cells. Cocultures treatment with monoclonal antibody anti-IL-8 reversed the inhibitory effect of P. brasiliensis on PMN apoptosis, besides to increase spontaneous apoptosis of these cells. These data show that, in contrast to other microbial pathogens that drive phagocytes into apoptosis to escape killing, P. brasiliensis can extend the lifetime of normal human PMN by inducing autocrine IL-8 production. © 2008 The Authors.
publishDate 2009
dc.date.none.fl_str_mv 2009-02-01
2014-05-27T11:23:52Z
2014-05-27T11:23:52Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1111/j.1365-3083.2008.02199.x
Scandinavian Journal of Immunology, v. 69, n. 2, p. 73-79, 2009.
0300-9475
1365-3083
http://hdl.handle.net/11449/70928
10.1111/j.1365-3083.2008.02199.x
2-s2.0-58849133457
2-s2.0-58849133457.pdf
url http://dx.doi.org/10.1111/j.1365-3083.2008.02199.x
http://hdl.handle.net/11449/70928
identifier_str_mv Scandinavian Journal of Immunology, v. 69, n. 2, p. 73-79, 2009.
0300-9475
1365-3083
10.1111/j.1365-3083.2008.02199.x
2-s2.0-58849133457
2-s2.0-58849133457.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Scandinavian Journal of Immunology
2.314
0,891
0,891
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 73-79
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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