Abstract:
:Antigens present in the products released by the larval stage of schistosome (SRP-A) were shown to induce a strong cytotoxic and protective IgE response both in the rat and the monkey. T cell lines and clones specific for SRP-A or 26 kD antigens which are the main target of the cytotoxic IgE have been derived. The passive transfer of SRP-A specific T lymphocytes into infected rats led to an increase of the IgE response, conferring a significant level of protection to the rats. In coculture assays in vitro, these cell lines significantly enhanced the production of IgE by SRP-A sensitized rat spleen cells. This helper effect on the IgE response was confirmed with 26 kD T cell clone supernatants. Moreover, supernatants obtained after stimulation with phorbol myristate acetate were able to enhance the IgE production of a hybridoma B cell line (B48-14) producing a monoclonal IgE antibody, cytotoxic for the schistosomula.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Damonneville M,Velge F,Verwaerde C,Pestel J,Auriault C,Capron Asubject
Has Abstractpub_date
1987-08-01 00:00:00pages
299-307issue
2eissn
0009-9104issn
1365-2249journal_volume
69pub_type
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