Cytokine expression in the duodenal mucosa of patients with visceral leishmaniasis
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista da Sociedade Brasileira de Medicina Tropical |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822010000400011 |
Resumo: | INTRODUCTION: Visceral leishmaniasis (VL) is a neglected tropical disease with a complex immune response in different organs. This pattern of organ-specific immune response has never been evaluated in the gastrointestinal tract. The aim of this study was to determine the in situ immune response in duodenal biopsies on patients with VL. METHODS: A case-control study was conducted on 13 patients with VL in comparison with nine controls. The immune response was evaluated using immunohistochemistry, for CD4, CD8, CD68, IL-4, IFN-γ, TNF-α and IL-10. Histological findings from the villi, crypts and inflammatory process were analyzed. RESULTS: All the cases of VL presented Leishmania antigens. No antigen was detected in the control group. The villus size was greater in the VL patients (p < 0.05). CD68 (macrophages) and CD4 levels were higher in the VL patients (p < 0.05). No differences in the expression of CD8, TNF-α, IL-10 or IL-4 were demonstrated. The number of cells expressing IFN-γ was lower in the VL patients (p < 0.05). CONCLUSIONS: Low levels of cytokines were found in the gastrointestinal tract of patients with VL. This pattern was not found in other organs affected by the disease. Immunotolerance of this tissue against Leishmania could explain these findings, as occurs with intestinal bacteria. |
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Cytokine expression in the duodenal mucosa of patients with visceral leishmaniasisVisceral leishmaniasisLeishmaniasisLeishmaniaINTRODUCTION: Visceral leishmaniasis (VL) is a neglected tropical disease with a complex immune response in different organs. This pattern of organ-specific immune response has never been evaluated in the gastrointestinal tract. The aim of this study was to determine the in situ immune response in duodenal biopsies on patients with VL. METHODS: A case-control study was conducted on 13 patients with VL in comparison with nine controls. The immune response was evaluated using immunohistochemistry, for CD4, CD8, CD68, IL-4, IFN-γ, TNF-α and IL-10. Histological findings from the villi, crypts and inflammatory process were analyzed. RESULTS: All the cases of VL presented Leishmania antigens. No antigen was detected in the control group. The villus size was greater in the VL patients (p < 0.05). CD68 (macrophages) and CD4 levels were higher in the VL patients (p < 0.05). No differences in the expression of CD8, TNF-α, IL-10 or IL-4 were demonstrated. The number of cells expressing IFN-γ was lower in the VL patients (p < 0.05). CONCLUSIONS: Low levels of cytokines were found in the gastrointestinal tract of patients with VL. This pattern was not found in other organs affected by the disease. Immunotolerance of this tissue against Leishmania could explain these findings, as occurs with intestinal bacteria.Sociedade Brasileira de Medicina Tropical - SBMT2010-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822010000400011Revista da Sociedade Brasileira de Medicina Tropical v.43 n.4 2010reponame:Revista da Sociedade Brasileira de Medicina Tropicalinstname:Sociedade Brasileira de Medicina Tropical (SBMT)instacron:SBMT10.1590/S0037-86822010000400011info:eu-repo/semantics/openAccessLuz,Kleber GiovanniTuon,Felipe FranciscoDuarte,Maria Irma SeixasMaia,Guilherme MarizMatos,PauloRamos,Ana Maria de OliveiraNicodemo,Antônio Carloseng2010-08-17T00:00:00Zoai:scielo:S0037-86822010000400011Revistahttps://www.sbmt.org.br/portal/revista/ONGhttps://old.scielo.br/oai/scielo-oai.php||dalmo@rsbmt.uftm.edu.br|| rsbmt@rsbmt.uftm.edu.br1678-98490037-8682opendoar:2010-08-17T00:00Revista da Sociedade Brasileira de Medicina Tropical - Sociedade Brasileira de Medicina Tropical (SBMT)false |
dc.title.none.fl_str_mv |
Cytokine expression in the duodenal mucosa of patients with visceral leishmaniasis |
title |
Cytokine expression in the duodenal mucosa of patients with visceral leishmaniasis |
spellingShingle |
Cytokine expression in the duodenal mucosa of patients with visceral leishmaniasis Luz,Kleber Giovanni Visceral leishmaniasis Leishmaniasis Leishmania |
title_short |
Cytokine expression in the duodenal mucosa of patients with visceral leishmaniasis |
title_full |
Cytokine expression in the duodenal mucosa of patients with visceral leishmaniasis |
title_fullStr |
Cytokine expression in the duodenal mucosa of patients with visceral leishmaniasis |
title_full_unstemmed |
Cytokine expression in the duodenal mucosa of patients with visceral leishmaniasis |
title_sort |
Cytokine expression in the duodenal mucosa of patients with visceral leishmaniasis |
author |
Luz,Kleber Giovanni |
author_facet |
Luz,Kleber Giovanni Tuon,Felipe Francisco Duarte,Maria Irma Seixas Maia,Guilherme Mariz Matos,Paulo Ramos,Ana Maria de Oliveira Nicodemo,Antônio Carlos |
author_role |
author |
author2 |
Tuon,Felipe Francisco Duarte,Maria Irma Seixas Maia,Guilherme Mariz Matos,Paulo Ramos,Ana Maria de Oliveira Nicodemo,Antônio Carlos |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Luz,Kleber Giovanni Tuon,Felipe Francisco Duarte,Maria Irma Seixas Maia,Guilherme Mariz Matos,Paulo Ramos,Ana Maria de Oliveira Nicodemo,Antônio Carlos |
dc.subject.por.fl_str_mv |
Visceral leishmaniasis Leishmaniasis Leishmania |
topic |
Visceral leishmaniasis Leishmaniasis Leishmania |
description |
INTRODUCTION: Visceral leishmaniasis (VL) is a neglected tropical disease with a complex immune response in different organs. This pattern of organ-specific immune response has never been evaluated in the gastrointestinal tract. The aim of this study was to determine the in situ immune response in duodenal biopsies on patients with VL. METHODS: A case-control study was conducted on 13 patients with VL in comparison with nine controls. The immune response was evaluated using immunohistochemistry, for CD4, CD8, CD68, IL-4, IFN-γ, TNF-α and IL-10. Histological findings from the villi, crypts and inflammatory process were analyzed. RESULTS: All the cases of VL presented Leishmania antigens. No antigen was detected in the control group. The villus size was greater in the VL patients (p < 0.05). CD68 (macrophages) and CD4 levels were higher in the VL patients (p < 0.05). No differences in the expression of CD8, TNF-α, IL-10 or IL-4 were demonstrated. The number of cells expressing IFN-γ was lower in the VL patients (p < 0.05). CONCLUSIONS: Low levels of cytokines were found in the gastrointestinal tract of patients with VL. This pattern was not found in other organs affected by the disease. Immunotolerance of this tissue against Leishmania could explain these findings, as occurs with intestinal bacteria. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822010000400011 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822010000400011 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0037-86822010000400011 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Medicina Tropical - SBMT |
publisher.none.fl_str_mv |
Sociedade Brasileira de Medicina Tropical - SBMT |
dc.source.none.fl_str_mv |
Revista da Sociedade Brasileira de Medicina Tropical v.43 n.4 2010 reponame:Revista da Sociedade Brasileira de Medicina Tropical instname:Sociedade Brasileira de Medicina Tropical (SBMT) instacron:SBMT |
instname_str |
Sociedade Brasileira de Medicina Tropical (SBMT) |
instacron_str |
SBMT |
institution |
SBMT |
reponame_str |
Revista da Sociedade Brasileira de Medicina Tropical |
collection |
Revista da Sociedade Brasileira de Medicina Tropical |
repository.name.fl_str_mv |
Revista da Sociedade Brasileira de Medicina Tropical - Sociedade Brasileira de Medicina Tropical (SBMT) |
repository.mail.fl_str_mv |
||dalmo@rsbmt.uftm.edu.br|| rsbmt@rsbmt.uftm.edu.br |
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1752122155827462144 |