OKT3


Also found in: Wikipedia.

OKT3

An immunosuppressive monoclonal antibody used in organ transplantation.
References in periodicals archive ?
CMV enfeksiyonu riski ayrica akut rejeksiyon tedavisi sirasinda kullanilan bolus steroid, anti-lenfosit globulin ve OKT3 tedavisi sirasinda da artar.
In vivo generation of C4d, Bb, iC3b, and SC5b-9 after OKT3 administration in kidney and lung transplant recipients.
Consequently, monitoring the PCT concentration to demonstrate the presence of a bacterial infection or an AR would not be useful during the first days after the introduction of treatment with OKT3 or antithymocyte globulin.
106) But that combo proved too toxic, and it promptly spawned antibodies against OKT3.
In the case of biopharmaceuticals, recombinant human insulin was the first product to be approved by the USFDA in the year 1982, to be followed by the recombinant hepatitis B vaccine and the first monoclonal antibody (Orthoclone OKT3 used to prevent rejection during kidney transplants) in the year 1986.
Peripheral blood lymphocyte subsets were determined by using a flow cytometer (Cytoron Absolute, Ortho, Raritan, N J, USA) after incubation with monoclonal antibodies OKT3, OKT4, and OKT8 (Ortho).
has reported on recently published European Best Practice Guidelines for Renal Transplantation which state that anti-thymocyte globulin (ATG) is preferable to OKT3 for the treatment of acute rejection episodes.
We tested in vitro stimulation of lymphocytes using pokeweed mitogen (PWM; Gibco, Paisley, Scotland), concanavalin A (Con A; Pharmacia, Uppsala, Sweden), phytohemagglutinin (PHA; Wellcome, Dartford, UK), or OKT3 mAb (anti-CD3; Ortho) in three different concentrations.
The first era was marked by the availability of cyclosporine, the second by the availability of monoclonal antibody OKT3, and the third by the introduction of tacrolimus.
OKT3 blocks a different receptor on white blood cells.
The first FDA-approved therapeutic monoclonal antibody was a murine IgG2a CD3 specific transplant rejection drug, OKT3 (also called muromonab) in 1986.
Abbreviations: C, controls; Con A, concanavalin A; DMSO, dimethylsulfoxide; ELISA, enzyme-linked immunosorbent assay; FACS, fluorescence activated cell scanner; IC50, halfmaximal inhibitory concentration; IL-2, interleukin-2; IKB, inhibitor of KB; mTOR, mammalian target of rapamycin; NFKB, nuclear factor KB; OKT3, mouse anti-human CD3 antibody; PBMC, peripheral blood mononuclear cell; PHA, phytonemagglutinin; PI, propidium iodide; PMA, phorbol myristate acetate.