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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
01/08/1992 |
Data da última atualização: |
12/07/2023 |
Autoria: |
MACKENZIE, C. D.; JUNGERY, M.; TAYLOR, P. M.; OGILVE, B. N. |
Título: |
The in vitro interaction of eosinophils, neutrophils, macrophages and mast cells with nematode surfaces in the presence of complement or antibodies. |
Ano de publicação: |
1981 |
Fonte/Imprenta: |
Journal Pathology, v. 133, n. 2, p. 161-175, 1981. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: The adherence in vitro of leucocytes to the surface of various stages in the life cycle of T. spiralis and N. brasiliensis in the presence of serum was examined. Considerable differences were observed in the behaviour of mast cells, eosinophils, neutrophils and macrophages in this interaction. Mast cells adhered for a short time, did not flatten onto the surface and did not degranulate. Adherence ceased after 4-6 hr. Eosinophils adhered within minutes to the surface or worms, flattened and degranulated; only their cytoplasmic remnants could be seen on the worms' surface after 24 hr in culture. In contrast, only a small area of the cytoplasmic membrane of neutrophils flattened on the surface of the worms and adherence ceased after 2-24 hr. The NBT conversion reaction showed a positive deposit at the interface between neutrophils and parasites during neutrophil adherence. This deposit remained as "foot prints" on the surface of the nematodes following neutrophil detachment. This positive NBT reaction occurred only with neutrophils and not with eosinophils, mast cells or macrophages. Macrophages adhered permanently to the surface of these worms, they did not flatten and retained their integrity. Under the light microscope the cytoplasmic inclusions appeared to decrease in size during culture. Electron microscopy revealed the presence of fewer granules and an increased number of vacuoles in later cultures of macrophages. These findings are discussed in relationship to the immunopathology of nematode infection in vivo MenosAbstract: The adherence in vitro of leucocytes to the surface of various stages in the life cycle of T. spiralis and N. brasiliensis in the presence of serum was examined. Considerable differences were observed in the behaviour of mast cells, eosinophils, neutrophils and macrophages in this interaction. Mast cells adhered for a short time, did not flatten onto the surface and did not degranulate. Adherence ceased after 4-6 hr. Eosinophils adhered within minutes to the surface or worms, flattened and degranulated; only their cytoplasmic remnants could be seen on the worms' surface after 24 hr in culture. In contrast, only a small area of the cytoplasmic membrane of neutrophils flattened on the surface of the worms and adherence ceased after 2-24 hr. The NBT conversion reaction showed a positive deposit at the interface between neutrophils and parasites during neutrophil adherence. This deposit remained as "foot prints" on the surface of the nematodes following neutrophil detachment. This positive NBT reaction occurred only with neutrophils and not with eosinophils, mast cells or macrophages. Macrophages adhered permanently to the surface of these worms, they did not flatten and retained their integrity. Under the light microscope the cytoplasmic inclusions appeared to decrease in size during culture. Electron microscopy revealed the presence of fewer granules and an increased number of vacuoles in later cultures of macrophages. These findings are discussed in relationship to ... Mostrar Tudo |
Palavras-Chave: |
Complement system proteins; Nematodeo. |
Thesagro: |
Anticorpo; Imunologia; Mamífero; Parasitologia. |
Thesaurus Nal: |
Antibodies; Cell adhesion; Eosinophils; Leukocytes; Macrophages; Mast cells; Nematoda; Nitroblue tetrazolium; Rats; Trichinella. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02541naa a2200349 a 4500 001 1521898 005 2023-07-12 008 1981 bl uuuu u00u1 u #d 100 1 $aMACKENZIE, C. D. 245 $aThe in vitro interaction of eosinophils, neutrophils, macrophages and mast cells with nematode surfaces in the presence of complement or antibodies.$h[electronic resource] 260 $c1981 520 $aAbstract: The adherence in vitro of leucocytes to the surface of various stages in the life cycle of T. spiralis and N. brasiliensis in the presence of serum was examined. Considerable differences were observed in the behaviour of mast cells, eosinophils, neutrophils and macrophages in this interaction. Mast cells adhered for a short time, did not flatten onto the surface and did not degranulate. Adherence ceased after 4-6 hr. Eosinophils adhered within minutes to the surface or worms, flattened and degranulated; only their cytoplasmic remnants could be seen on the worms' surface after 24 hr in culture. In contrast, only a small area of the cytoplasmic membrane of neutrophils flattened on the surface of the worms and adherence ceased after 2-24 hr. The NBT conversion reaction showed a positive deposit at the interface between neutrophils and parasites during neutrophil adherence. This deposit remained as "foot prints" on the surface of the nematodes following neutrophil detachment. This positive NBT reaction occurred only with neutrophils and not with eosinophils, mast cells or macrophages. Macrophages adhered permanently to the surface of these worms, they did not flatten and retained their integrity. Under the light microscope the cytoplasmic inclusions appeared to decrease in size during culture. Electron microscopy revealed the presence of fewer granules and an increased number of vacuoles in later cultures of macrophages. These findings are discussed in relationship to the immunopathology of nematode infection in vivo 650 $aAntibodies 650 $aCell adhesion 650 $aEosinophils 650 $aLeukocytes 650 $aMacrophages 650 $aMast cells 650 $aNematoda 650 $aNitroblue tetrazolium 650 $aRats 650 $aTrichinella 650 $aAnticorpo 650 $aImunologia 650 $aMamífero 650 $aParasitologia 653 $aComplement system proteins 653 $aNematodeo 700 1 $aJUNGERY, M. 700 1 $aTAYLOR, P. M. 700 1 $aOGILVE, B. N. 773 $tJournal Pathology$gv. 133, n. 2, p. 161-175, 1981.
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6. | | AZEVEDO, R. A.; MACHADO, F. S.; CAMPOS, M. M.; FURINI, P. M.; RUFINO, S. R.; PEREIRA, L. G. R.; TOMICH, T. R.; COELHO, S. G. The effects of increasing amounts of milk replacer powder added to whole milk on feed intake and performance in dairy heifers. Journal of Dairy Science, v. 99, n. 10, p. 8018-8027, 2016.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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