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ISOLATION OF ANTIIDIOTYPIC ANTIBODIES TO T-CELLS USING AN ANTI-FRAMEWORK DETERMINANT ANTIBODY
ISOLATION OF ANTIIDIOTYPIC ANTIBODIES TO T-CELLS USING AN ANTI-FRAMEWORK DETERMINANT ANTIBODY JOURNAL OF IMMUNOLOGICAL METHODS Maecker, H. T., Kitamura, K., Brenner, M. B., Levy, R. 1987; 98 (2): 219-226Abstract
A panel of anti-idiotypic antibodies to the T cell line HPB-ALL was produced by screening with a novel enzyme-linked immunoadsorption assay (ELISA). Using the beta framework I (beta F1) monoclonal antibody directed at a common determinant on the human T cell receptor beta subunit, we were able to specifically capture the receptor molecule from a cell lysate preparation and use this as the basis of an ELISA assay. Hybridoma supernatants were tested for their ability to bind to the receptor thus captured. A total of four antibodies were isolated by this method, and they were shown to immunoprecipitate a disulfide-linked heterodimer composed of alpha (49 kDa) and beta (40 kDa) subunits from HPB-ALL cells, similar to the subunits recognized by the beta F1 antibody. Furthermore, all four antibodies blocked the binding of T40/25, an anti-idiotype to HPB-ALL. Three of these antibodies blocked the binding of anti-Leu 4 to a similar degree as did T40/25, while one did not. This suggests that these new anti-idiotypic antibodies recognize distinct but associated idiotypic determinants. The isolation of such antibodies for any particular T cell line or tumor promises to be useful for biological studies of T cell malignancy in humans.
View details for Web of Science ID A1987G904800008
View details for PubMedID 2437204