Characterization of protective and non-protective surface membrane carbohydrate epitopes of Schistosoma mansoni
Mem. Inst. Oswaldo Cruz
;
82(supl.4): 115-119, 1987. graf, tab
Article
Dans Anglais
| LILACS
| ID: lil-623674
ABSTRACT
We have produced a number of monoclonal antibodies, protective and non-protective, which recognize a complex of schistosomula antigens, including the 38 kDa antigen. Eight different protective and non-protective monoclonal antibodies, varying in isotypes, were used in the binding assays. Lectin inhibition studies suggested that the monoclonal antibodies probably recognized carbohydrate epitopes on the antigen(s). Immunoprecipitation studies showed that at least two of the monoclonal antibodies recognized different epitopes on the same molecule. Additionally, we tested for monoclonal antibody binding after the antigens were treated with; 1) proteases, 2) periodate, 3) various exo- and endoglycosidases, 4) mild acid hydrolysis. We also tested for binding of the antibodies to keyhole limpet hemocyanin (KLH). Using the 8 monoclonal antibodies as probes, we were able to define at least 4 different carbohydrate epitopes related to the protective monoclonal antibodies, and at least one epitope which is seen by the non-protective antibodies. The epitope seen by the non-protective antibodies was shown to be cross-reactive with epitopes on KLH. These results demonstrate the importance of epitope mapping studies for any defined vaccine.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Schistosoma mansoni
/
Schistosomiase à Schistosoma mansoni
/
Spécificité des anticorps
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
Médecine tropicale
/
Parasitologie
Année:
1987
Type:
Article
/
Congrès et conférence
Pays d'affiliation:
États-Unis d'Amérique
Institution/Pays d'affiliation:
Harvard School of Public Health/US
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