title: Distinction of two CD3-monoclonal antibodies in respect to the effectivity to modulate the induction of IgM- and gamma-interferon synthesis.
abstract: Monoclonal antibodies which specifically bind to epitopes within the T3-antigen complex (CD3 mAb) are excellent tools to analyse mechanisms of T-cell activation and of the interactions between T-cells, B-cells, accessory cells and intermediating immunefactors. In the present study we could show, that the CD-3 mAbs BMA 030 and BMA 031 are highly effective in modulating immunereactions, similar to antibodies directed to the T4-antigen (CD4-mAb) or the T8-antigen (CD8-mAbs) respectively. The data substantiate that depending on the experimental system BMA 030 and BMA 031 are clearly distinctive in their efficacy to modulate immunereactions. For therapeutical use of CD-3-monoclonal antibodies in organ transplantation those clone-specific differences of mAbs with identical binding specificity might cause for crucial differences in clinical applicability.
mesh_terms: D000911:Antibodies, Monoclonal; D000936:Antigen-Antibody Complex; D002478:Cells, Cultured; D006801:Humans; D007075:Immunoglobulin M / Q000096:biosynthesis*; D007371:Interferon-gamma / Q000096:biosynthesis*; D007700:Kinetics; D008213:Lymphocyte Activation; D008934:Mitogens; D013601:T-Lymphocytes / Q000145:classification / Q000276:immunology
chemical_list: D000911:Antibodies, Monoclonal; D000936:Antigen-Antibody Complex; D007075:Immunoglobulin M; D008934:Mitogens; D007371:Interferon-gamma