Avaliação imunohistoquímica das lesões identificadas em vitelos infectados por Theileria annulata
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/16572 |
Resumo: | Various cases of multifocal to coalescent nodular skin lesions and lymph node enlargement, similar to multicentric malignant lymphoma, were registered in very young calves in the south of Portugal [1]. At necropsy, hemorrhagic nodules or nodules with a hemorrhagic halo were seen, particularly in the skin, subcutaneous tissue, skeletal and cardiac muscle, pharynx, trachea and intestinal serosa. Histologically nodules were formed by large, round, lymphoblastoid neoplastic-like cells. Immunohistochemistry identified these cells as mostly CD3 positive T lymphocytes and MAC387 positive macrophages. A marker for B lymphocytes (CD79αcy) labelled very few cells. Theileria annulata infected cells in these nodules were also identified by IHC, through the use of two monoclonal antibodies (1C7 and 1C12) diagnostic for the parasite. It was concluded that the pathological changes observed in the different organs and tissues were caused by proliferation of schizont-infected macrophages, which subsequently stimulate a severe uncontrolled proliferation of uninfected T lymphocytes. |
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Avaliação imunohistoquímica das lesões identificadas em vitelos infectados por Theileria annulataTheileria annulatatropical theileriosiscattlelymphoid cell proliferationVarious cases of multifocal to coalescent nodular skin lesions and lymph node enlargement, similar to multicentric malignant lymphoma, were registered in very young calves in the south of Portugal [1]. At necropsy, hemorrhagic nodules or nodules with a hemorrhagic halo were seen, particularly in the skin, subcutaneous tissue, skeletal and cardiac muscle, pharynx, trachea and intestinal serosa. Histologically nodules were formed by large, round, lymphoblastoid neoplastic-like cells. Immunohistochemistry identified these cells as mostly CD3 positive T lymphocytes and MAC387 positive macrophages. A marker for B lymphocytes (CD79αcy) labelled very few cells. Theileria annulata infected cells in these nodules were also identified by IHC, through the use of two monoclonal antibodies (1C7 and 1C12) diagnostic for the parasite. It was concluded that the pathological changes observed in the different organs and tissues were caused by proliferation of schizont-infected macrophages, which subsequently stimulate a severe uncontrolled proliferation of uninfected T lymphocytes.Experimental Pathology and Health Science: Research, Clinics, Teaching and Society2016-01-07T10:47:51Z2016-01-072015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/16572http://hdl.handle.net/10174/16572porExperimental Pathology and Health Science: Research, Clinics, Teaching and Society 7 (1), 53.1646-8414smbb@uevora.pt381Branco, Sandrainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:03:27Zoai:dspace.uevora.pt:10174/16572Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:08:56.326670Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Avaliação imunohistoquímica das lesões identificadas em vitelos infectados por Theileria annulata |
title |
Avaliação imunohistoquímica das lesões identificadas em vitelos infectados por Theileria annulata |
spellingShingle |
Avaliação imunohistoquímica das lesões identificadas em vitelos infectados por Theileria annulata Branco, Sandra Theileria annulata tropical theileriosis cattle lymphoid cell proliferation |
title_short |
Avaliação imunohistoquímica das lesões identificadas em vitelos infectados por Theileria annulata |
title_full |
Avaliação imunohistoquímica das lesões identificadas em vitelos infectados por Theileria annulata |
title_fullStr |
Avaliação imunohistoquímica das lesões identificadas em vitelos infectados por Theileria annulata |
title_full_unstemmed |
Avaliação imunohistoquímica das lesões identificadas em vitelos infectados por Theileria annulata |
title_sort |
Avaliação imunohistoquímica das lesões identificadas em vitelos infectados por Theileria annulata |
author |
Branco, Sandra |
author_facet |
Branco, Sandra |
author_role |
author |
dc.contributor.author.fl_str_mv |
Branco, Sandra |
dc.subject.por.fl_str_mv |
Theileria annulata tropical theileriosis cattle lymphoid cell proliferation |
topic |
Theileria annulata tropical theileriosis cattle lymphoid cell proliferation |
description |
Various cases of multifocal to coalescent nodular skin lesions and lymph node enlargement, similar to multicentric malignant lymphoma, were registered in very young calves in the south of Portugal [1]. At necropsy, hemorrhagic nodules or nodules with a hemorrhagic halo were seen, particularly in the skin, subcutaneous tissue, skeletal and cardiac muscle, pharynx, trachea and intestinal serosa. Histologically nodules were formed by large, round, lymphoblastoid neoplastic-like cells. Immunohistochemistry identified these cells as mostly CD3 positive T lymphocytes and MAC387 positive macrophages. A marker for B lymphocytes (CD79αcy) labelled very few cells. Theileria annulata infected cells in these nodules were also identified by IHC, through the use of two monoclonal antibodies (1C7 and 1C12) diagnostic for the parasite. It was concluded that the pathological changes observed in the different organs and tissues were caused by proliferation of schizont-infected macrophages, which subsequently stimulate a severe uncontrolled proliferation of uninfected T lymphocytes. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01T00:00:00Z 2016-01-07T10:47:51Z 2016-01-07 |
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://hdl.handle.net/10174/16572 http://hdl.handle.net/10174/16572 |
url |
http://hdl.handle.net/10174/16572 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Experimental Pathology and Health Science: Research, Clinics, Teaching and Society 7 (1), 53. 1646-8414 smbb@uevora.pt 381 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Experimental Pathology and Health Science: Research, Clinics, Teaching and Society |
publisher.none.fl_str_mv |
Experimental Pathology and Health Science: Research, Clinics, Teaching and Society |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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