PMID: 6161959Mar 1, 1981Paper

Regulation of the production of immune interferon and cytotoxic T lymphocytes by interleukin 2

The Journal of Immunology : Official Journal of the American Association of Immunologists
W L FarrarJ J Farrar

Abstract

The activation of alloantigen-specific cytotoxic T lymphocyte precursors is dependent upon the presence of both macrophages and helper T cells or regulatory molecules derived from these facilitative cells. Three biochemically distinct helper factors have been identified: interleukin 1 (macrophage-derived), Interleukin 2 (T cell derived), and immune interferon. All 3 factors are found in supernatants of mixed lymphocyte cultures (MLC), however, the removal of macrophages from these cultures completely ablates the production of these factors as well as the induction of cytotoxic T lymphocytes (CTL). The addition of IL 2 to these macrophage-depleted MLC restores the ability of responder T cells to: 1) bypass the requirement for macrophage soluble function, 2) produce immune interferon, and 3) generate CTL. The kinetics and dose response of immune interferon production in response to IL 2 correlates with the generation of CTL. The production of immune interferon as well as the generation of CTL requires T cells, alloantigen, and IL2. Furthermore, the induction of CTL by IL2 was neutralized by the addition of anti-immune interferon. These data suggest that: 1) the regulation of immune interferon production is based on a T to T cell ...Continue Reading

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