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  • Title: Modulation of suppressor T cell induction with gamma-interferon.
    Author: Noma T, Dorf ME.
    Journal: J Immunol; 1985 Dec; 135(6):3655-60. PubMed ID: 2933451.
    Abstract:
    The ability of antigen-coupled splenic adherent cells to induce suppressor T cells (Ts) is dependent on the presence of I-J determinants on antigen-presenting cells. After 4 days of in vitro culture, antigen-coupled adherent cells lose the capacity to induce Ts. Supernatants from Con A-stimulated lymphocyte cultures and purified interferon-gamma can sustain accessory function for the induction of Ts. Furthermore, after in vitro culture of splenic adherent cells, there is an apparent correlation between the loss of I-A determinants and the decrease in I-J-restricted Ts induction. Stimulation of Ia expression with interferon-gamma results in a simultaneous increase in the ability to induce Ts. Finally, elimination of I-A-bearing splenic adherent cells with antibody + C eliminates I-J-restricted Ts induction. The combined data imply a co-regulation of I-A and I-J on the antigen-presenting cells involved in the induction of both the Ts1 and Ts3 suppressor T cell subsets.
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