T lymphocytes and macrophages in the intestinal tissues of dogs infected with Leishmania infantum
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Parasitologia Veterinária (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612017000200159 |
Resumo: | Abstract This study was about a semi-quantitative analysis of T lymphocytes (CD4+ and CD8+, FoxP3+ regulatory T cells), and macrophages in the gut wall of dogs naturally infected with Leishmania infantum. Thirteen dogs were divided into three groups: group 1 (G1, n=5), dogs with canine visceral leishmaniasis (CVL) and infected with L. infantum amastigotes in the intestine; group 2 (G2, n=5), dogs with CVL but without intestinal amastigotes; and group 3 (G3, n=3), uninfected dogs (control group). There was no significant difference (p ≥ 0.05) on CD4+ and Treg cell numbers among the groups, whereas the levels of CD8+ T cells and macrophages were significantly higher in dogs from G1 group than in G2 and G3 (p ≤ 0.05), especially in intestinal segments with high parasite burden. Parasite burden correlated positively with levels of CD8+ T cells and macrophages (p ≤ 0.05), but was inversely correlated to levels of CD4+ T lymphocytes and FoxP3+ Treg cells. In conclusion, in the intestine of dogs with CVL, the increase of CD8+ T cells and macrophages population associated with high parasite burdens, but no changes of CD4+ T cells and FoxP3+ Treg cells suggest a possible immunoregulation by the parasite not dependent on Treg cells. |
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T lymphocytes and macrophages in the intestinal tissues of dogs infected with Leishmania infantumT lymphocytesmacrophagescanine visceral leishmaniasisintestinal tractAbstract This study was about a semi-quantitative analysis of T lymphocytes (CD4+ and CD8+, FoxP3+ regulatory T cells), and macrophages in the gut wall of dogs naturally infected with Leishmania infantum. Thirteen dogs were divided into three groups: group 1 (G1, n=5), dogs with canine visceral leishmaniasis (CVL) and infected with L. infantum amastigotes in the intestine; group 2 (G2, n=5), dogs with CVL but without intestinal amastigotes; and group 3 (G3, n=3), uninfected dogs (control group). There was no significant difference (p ≥ 0.05) on CD4+ and Treg cell numbers among the groups, whereas the levels of CD8+ T cells and macrophages were significantly higher in dogs from G1 group than in G2 and G3 (p ≤ 0.05), especially in intestinal segments with high parasite burden. Parasite burden correlated positively with levels of CD8+ T cells and macrophages (p ≤ 0.05), but was inversely correlated to levels of CD4+ T lymphocytes and FoxP3+ Treg cells. In conclusion, in the intestine of dogs with CVL, the increase of CD8+ T cells and macrophages population associated with high parasite burdens, but no changes of CD4+ T cells and FoxP3+ Treg cells suggest a possible immunoregulation by the parasite not dependent on Treg cells.Colégio Brasileiro de Parasitologia Veterinária2017-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612017000200159Revista Brasileira de Parasitologia Veterinária v.26 n.2 2017reponame:Revista Brasileira de Parasitologia Veterinária (Online)instname:Colégio Brasileiro de Parasitologia Veterinária (CBPV)instacron:CBPV10.1590/s1984-29612017039info:eu-repo/semantics/openAccessSilva,Diogo Tiago daAlves,Maria LuanaSpada,Júlio Cesar PereiraSilva,Aline Cristine daSilveira,Rita de Cássia Viveiros daOliveira,Trícia Maria Ferreira de SousaStarke-Buzetti,Wilma Aparecidaeng2017-07-12T00:00:00Zoai:scielo:S1984-29612017000200159Revistahttp://www.scielo.br/scielo.php?script=sci_serial&lng=pt&pid=1984-2961https://old.scielo.br/oai/scielo-oai.php||zacariascbpv@fcav.unesp.br1984-29610103-846Xopendoar:2017-07-12T00:00Revista Brasileira de Parasitologia Veterinária (Online) - Colégio Brasileiro de Parasitologia Veterinária (CBPV)false |
dc.title.none.fl_str_mv |
T lymphocytes and macrophages in the intestinal tissues of dogs infected with Leishmania infantum |
title |
T lymphocytes and macrophages in the intestinal tissues of dogs infected with Leishmania infantum |
spellingShingle |
T lymphocytes and macrophages in the intestinal tissues of dogs infected with Leishmania infantum Silva,Diogo Tiago da T lymphocytes macrophages canine visceral leishmaniasis intestinal tract |
title_short |
T lymphocytes and macrophages in the intestinal tissues of dogs infected with Leishmania infantum |
title_full |
T lymphocytes and macrophages in the intestinal tissues of dogs infected with Leishmania infantum |
title_fullStr |
T lymphocytes and macrophages in the intestinal tissues of dogs infected with Leishmania infantum |
title_full_unstemmed |
T lymphocytes and macrophages in the intestinal tissues of dogs infected with Leishmania infantum |
title_sort |
T lymphocytes and macrophages in the intestinal tissues of dogs infected with Leishmania infantum |
author |
Silva,Diogo Tiago da |
author_facet |
Silva,Diogo Tiago da Alves,Maria Luana Spada,Júlio Cesar Pereira Silva,Aline Cristine da Silveira,Rita de Cássia Viveiros da Oliveira,Trícia Maria Ferreira de Sousa Starke-Buzetti,Wilma Aparecida |
author_role |
author |
author2 |
Alves,Maria Luana Spada,Júlio Cesar Pereira Silva,Aline Cristine da Silveira,Rita de Cássia Viveiros da Oliveira,Trícia Maria Ferreira de Sousa Starke-Buzetti,Wilma Aparecida |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Silva,Diogo Tiago da Alves,Maria Luana Spada,Júlio Cesar Pereira Silva,Aline Cristine da Silveira,Rita de Cássia Viveiros da Oliveira,Trícia Maria Ferreira de Sousa Starke-Buzetti,Wilma Aparecida |
dc.subject.por.fl_str_mv |
T lymphocytes macrophages canine visceral leishmaniasis intestinal tract |
topic |
T lymphocytes macrophages canine visceral leishmaniasis intestinal tract |
description |
Abstract This study was about a semi-quantitative analysis of T lymphocytes (CD4+ and CD8+, FoxP3+ regulatory T cells), and macrophages in the gut wall of dogs naturally infected with Leishmania infantum. Thirteen dogs were divided into three groups: group 1 (G1, n=5), dogs with canine visceral leishmaniasis (CVL) and infected with L. infantum amastigotes in the intestine; group 2 (G2, n=5), dogs with CVL but without intestinal amastigotes; and group 3 (G3, n=3), uninfected dogs (control group). There was no significant difference (p ≥ 0.05) on CD4+ and Treg cell numbers among the groups, whereas the levels of CD8+ T cells and macrophages were significantly higher in dogs from G1 group than in G2 and G3 (p ≤ 0.05), especially in intestinal segments with high parasite burden. Parasite burden correlated positively with levels of CD8+ T cells and macrophages (p ≤ 0.05), but was inversely correlated to levels of CD4+ T lymphocytes and FoxP3+ Treg cells. In conclusion, in the intestine of dogs with CVL, the increase of CD8+ T cells and macrophages population associated with high parasite burdens, but no changes of CD4+ T cells and FoxP3+ Treg cells suggest a possible immunoregulation by the parasite not dependent on Treg cells. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-01 |
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=S1984-29612017000200159 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612017000200159 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1984-29612017039 |
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 |
Colégio Brasileiro de Parasitologia Veterinária |
publisher.none.fl_str_mv |
Colégio Brasileiro de Parasitologia Veterinária |
dc.source.none.fl_str_mv |
Revista Brasileira de Parasitologia Veterinária v.26 n.2 2017 reponame:Revista Brasileira de Parasitologia Veterinária (Online) instname:Colégio Brasileiro de Parasitologia Veterinária (CBPV) instacron:CBPV |
instname_str |
Colégio Brasileiro de Parasitologia Veterinária (CBPV) |
instacron_str |
CBPV |
institution |
CBPV |
reponame_str |
Revista Brasileira de Parasitologia Veterinária (Online) |
collection |
Revista Brasileira de Parasitologia Veterinária (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Parasitologia Veterinária (Online) - Colégio Brasileiro de Parasitologia Veterinária (CBPV) |
repository.mail.fl_str_mv |
||zacariascbpv@fcav.unesp.br |
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1754208916635385856 |