Passive protection against fasciolosis in mice by immunization with a monoclonal antibody (ES-78 MoAb).
Parasite Immunol
; 24(2): 103-8, 2002 Feb.
Article
em En
| MEDLINE
| ID: mdl-11874565
ABSTRACT
Recently, we reported a partial characterization of the epitope recognized by the ES-78 monoclonal antibody (MoAb). This monoclonal antibody was obtained from spleen lymphocytes of a mouse immunized with excretory-secretory antigens of Fasciola hepatica adult worms. In the present study, we report the results obtained in experiments of passive protection using this MoAb in BALB/c mice infected with 15 Fasciola hepatica metacercariae. The monoclonal antibody was able to reduce the parasite burden when administered 24 h before challenge but not when delivered 7 days after challenge. The antibody recognition of digestive tract structures in 3-week-old parasites was demonstrated by immune histochemical techniques. The antigens purified by affinity chromatography using this antibody had molecular weights of 14-20, 25-29 and 36-45 kDa and demonstrated proteinase activity similar to cathepsin L. These results suggest that the antigens carrying the epitope recognized by the ES-78 MoAb may be used as target in the protection against fasciolosis.
Buscar no Google
Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Anticorpos Anti-Helmínticos
/
Imunização Passiva
/
Fasciola hepatica
/
Fasciolíase
/
Anticorpos Monoclonais
Limite:
Animals
Idioma:
En
Revista:
Parasite Immunol
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
Cuba