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Kinetics of activation antigen expression by in vitro-stimulated human T lymphocytes

W Holter, O Majdic, K Liszka

    Cellular Immunology
    |February 1, 1985
    PubMed

    In this study a panel of monoclonal antibodies was used to investigate the kinetics of the appearance of activation-linked surface determinants as well as cytoplasmic and nuclear determinants in human T cells following lectin stimulation. Well known activation markers, such as Ia/DR, transferrin receptor, IL-2 receptor, T10, and gp24, were compared and investigated together with the T13 structure, recently found in this laboratory. T13, not demonstrable on resting T cells, could be seen within 24 hr after lectin stimulation. Kinetics of the appearance were similar to IL-2 receptor and transferrin receptor expression. Ia/DR synthesis was investigated separately for each polypeptide and the cytoplasmic invariant gamma-chain expression could be demonstrated for the first time with a gamma-chain-specific monoclonal antibody VIC-Y1. Moreover, gamma-chain synthesis seems to precede alpha- and beta-chain occurrence in human T cells. In addition, data from quantitative studies on antigenic densities are presented.

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