Comparison of T suppressor factors from tumour-bearing mice and mice immunized with a monoclonal anti-idiotypic antibody

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Abstract
Certain dosage schedules of a monoclonal antiidiotypic antibody (related to a murine bladder carcinoma) were found to induce suppressor factor production by syngeneic mice. This suppressor factor resembled the factor from tumour-bearing mice with respect to idiotype specificity, possession of molecular markers (reactive with anti-IJ and B16G antibodies) and production by Lyt2+IJ+ T cells in spleen cell cultures. The two factors differed with respect to Igh restriction in an in vitro assay (leucocyte adherence inhibition) and ability to suppress the induction of delayed-type hypersensitivity to tumour antigen.
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