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Does OKT3 Monoclonal Antibody React with an Antigen-recognition Structure on Human T Cells?

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Specialty Science
Date 1981 Mar 1
PMID 6165018
Citations 63
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Abstract

OKT3 monoclonal antibody to human T cells inhibits the target cell lysis mediated by allogeneic cytotoxic T cells and the generation of these effector cells in mixed lymphocyte culture. This marked inhibition of cell-mediated lysis is not found with other monoclonal antibodies also reactive with cell surface antigens of human T cells (OKT1, OKT4, OKT5, OKT6, OKT8, and OKT11). OKT3 antibody is mitogenic and this effect appears to require receptor activation in that it occurs at low concentrations (10(-12) M range) of OKT3 antibody, requires intact OKT3 IgG, and is inhibited by a factor(s) in human plasma. By contrast, the inhibition of allogeneic cell-mediated lysis by OKT3 antibody appears to be due to steric hindrance in that it requires higher concentrations of OKT3 antibody (10(-8) M range), Fab fragments retain approximately 10% activity, and inhibition is demonstrable in the presence of human plasma. These findings are consistent with the suggestion that OKT3 antibody reacts with the human T-cell antigen-recognition structure.

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References
1.
Sy M, Bach B, Dohi Y, Nisonoff A, Benacerraf B, Greene M . Antigen- and receptor-driven regulatory mechanisms. I. Induction of suppressor T cells with anti-idiotypic antibodies. J Exp Med. 1979; 150(5):1216-28. PMC: 2185693. DOI: 10.1084/jem.150.5.1216. View

2.
Thomas F, Thomas J, Peace K, Flora R, Lee H . Effect of antilyphocyte-globulin potency on survival of cadaver renal transplants. Prospective randomised double-blind trial. Lancet. 1977; 2(8040):671-4. DOI: 10.1016/s0140-6736(77)90491-3. View

3.
Chang T, Eisen H . Effects of N alpha-tosyl-L-lysyl-chloromethylketone on the activity of cytotoxic T lymphocytes. J Immunol. 1980; 124(3):1028-33. View

4.
Eisenbarth G, Haynes B, Schroer J, Fauci A . Production of monoclonal antibodies reacting with peripheral blood mononuclear cell surface differentiation antigens. J Immunol. 1980; 124(3):1237-44. View

5.
Van Wauwe J, De Mey J, Goossens J . OKT3: a monoclonal anti-human T lymphocyte antibody with potent mitogenic properties. J Immunol. 1980; 124(6):2708-13. View