title: Regulation of concanavalin A-activated suppressor cell activity by interferon.
abstract: In addition to its antiviral activity, interferon (IF) has been shown to have a wide range of immunoregulatory effects in vivo and in vitro. IF has been observed to be produced by concanavalin A (Con A)-activated suppressor cells and has also been postulated to be of importance in modulating their suppressor activity. To explore this possibility further, we examined the capacity of interferon-treated Con A-activated suppressor cells to alter the normal mitogenic response to Con A. Con A-activated suppressor cells were resistant to treatment with IF and no effect of either lymphoblastoid or leukocyte IF, when utilized in concentrations ranging from 1-1000 U/ml, could be shown on the suppressor activity of Con A-activated cells.
mesh_terms: D002478:Cells, Cultured; D003208:Concanavalin A / Q000494:pharmacology*; D006801:Humans; D066298:In Vitro Techniques; D007372:Interferons / Q000494:pharmacology*; D008213:Lymphocyte Activation; D008938:Mitosis / Q000187:drug effects; D050378:T-Lymphocytes, Regulatory / Q000187:drug effects / Q000276:immunology*
chemical_list: D003208:Concanavalin A; D007372:Interferons