Lectinhistoquímica del granuloma inducido por el bacilo de Calmette Guérin en Piaractus mesopotamicus / Lectinhistochemical staining of granuloma induced by bacillus Calmette-Guerin in Piaractus mesopotamicus
Rev. MVZ Córdoba
; 18(3): 3753-3758, set.-dic. 2013. ilus, tab
Artigo
em Inglês
| LILACS
| ID: lil-700559
Biblioteca responsável:
CO140
ABSTRACT
Objetive. This study was conducted to evaluate, by means of lectinhistochemistry (LHC), the expression of carbohydrates in granulomas induced by the bacillus Calmette-Guerin (BCG) in muscle tissue of Piaractus mesopotamicus after 33 days. Material and methods. Histological sections with 3 μm thick were incubated with the following lectinsWGA (Wheat germ agglutinin), DBA (Dolichos biflorus agglutinin) and HPA (Helix pomatia agglutinin), and the results were evaluated by light microscopy. Results. Acid fast bacilli were stained by Ziehl Neelsen (ZN) and strong labeled by WGA in the cytoplasm of macrophages. Labeling with DBA was intense in fibroblasts and weak in macrophages. On the other hand, HPA binding was stronger in macrophages, especially in those that were in close contact with epithelioid cells, without evidence of binding to fibroblasts. The epithelioid cells were not labeled by the used lectins, but they were identified by Hematoxilin-Eosin (HE). The lectins labeled specific type saccharides in glycoproteins, as N-acetylglucosamine present in bacilli and macrophages, as well as N-acetyl-galactosamine in macrophages. The control group showed no inflammation or lectin binding. Conclusions. This technique may be useful in identifying receptors for WGA, DBA and the HPA lectins in epithelioid granuloma induced by BCG in P. mesopotamicus.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Polissacarídeos
/
Granuloma
/
Mycobacterium
Limite:
Animais
/
Humanos
Idioma:
Inglês
Revista:
Rev. MVZ Córdoba
Assunto da revista:
Medicina Veterinária
Ano de publicação:
2013
Tipo de documento:
Artigo
País de afiliação:
Argentina
/
Brasil
Instituição/País de afiliação:
National University of La Plata/AR
/
São Paulo State University/BR