Characterization of protective and non-protective surface membrane carbohydrate epitopes of Schistosoma mansoni

Bibliographic Details
Title: Characterization of protective and non-protective surface membrane carbohydrate epitopes of Schistosoma mansoni
Authors: Ko, Albert I., Harn, Donald A.
Source: Memórias do Instituto Oswaldo Cruz. January 1987 82(4)
Publisher Information: Instituto Oswaldo Cruz, Ministério da Saúde, 1987.
Publication Year: 1987
More Details: 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.
Document Type: article
File Description: text/html
Language: English
ISSN: 0074-0276
DOI: 10.1590/S0074-02761987000800019
Access URL: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761987000800019
Rights: info:eu-repo/semantics/openAccess
Accession Number: edssci.S0074.02761987000800019
Database: SciELO
More Details
ISSN:00740276
DOI:10.1590/S0074-02761987000800019
Published in:Memórias do Instituto Oswaldo Cruz
Language:English