Regulation of interferon-γ production by IL-12 and IL-18

https://doi.org/10.1016/S0952-7915(98)80163-5Get rights and content

Abstract

IL-18 (interferon-inducing factor) and IL-12 exhibit a marked synergism in interferon-γ induction in T cells. Investigations into the mechanism of this synergism have revealed that IL-12 upregulates expression of the IL-18 receptor on cells producing interferon-γ. Although IL-18 does not induce the development of Th1 cells, it is essential for the effective induction and activation of Th1 cells by IL-12. As for natural killer cells, IL-18 seems to activate them independently of IL-12. Although IL-12 and IL-18 activate both innate and acquired immunity, their excessive production by activated macrophages may induce multiple organ disorders including disruption of the immune system.

References (44)

  • MA Farrar et al.

    The molecular cell biology of interferon-γ and its receptor

    Annu Rev Immunol

    (1993)
  • U Boehm et al.

    Cellular responses to interferon-γ

    Annu Rev Immunol

    (1997)
  • G Trinchieri

    Interleukin-12: a proinflammatory cytokine with immunoregulatory functions that bridge innate resistance and antigen-specific adaptive immunity

    Annu Rev Immunol

    (1995)
  • GJ Bancroft et al.

    Natural immunity, a T cell-independent pathway of macrophage activation, defined in the SCID mouse

    Immunol Rev

    (1992)
  • H Okamura et al.

    Cloning of a new cytokine that induces IFN-γ production by T cells

    Nature

    (1995)
  • T Dao et al.

    Interferon-γ-inducing factor, a novel cytokine, enhances Fas ligand-mediated cytotoxicity of murine T helper 1 cells

    Cell Immunol

    (1996)
  • S Ushio et al.

    Cloning of cDNA for human IFN-γ-inducing factor, expression in Escherichia coli, and studies on the biologic activities of the protein

    J Immunol

    (1996)
  • MJ Micallef et al.

    Interferon-γ-inducing factor enhances T helper 1 cytokine production by stimulated human T cells: synergism with interleukin-12 for interferon-γ production

    Eur J Immunol

    (1996)
  • K Kohno et al.

    IFN-γ-inducing factor (IGIF) is a costimulatory factor on the activation of Th1, but not Th2 cells and exerts its effect independently of IL-12

    J Immunol

    (1997)
  • Y Gu et al.

    Activation of interferon-γ-inducing factor mediated by interleukin-1β converting enzyme

    Science

    (1997)
  • T Ghayur et al.

    Caspase 1 processes IFN-γ-inducing factor and regulates LPS-induced IFN-γ production

    Nature

    (1997)
  • J-I Henter et al.

    Hypercytokinemia in familial hemophagocytic lymphohistocytosis

    Blood

    (1991)
  • Cited by (474)

    • Immunological profile of two canine breeds in an endemic region of Leishmania infantum

      2023, Veterinary Parasitology: Regional Studies and Reports
    View all citing articles on Scopus
    View full text