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The effects of auranofin on activation and interleukin-2 release from human peripheral blood mononuclear cells

  • Molecular Immunopathology
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Abstract

Auranofin, 30–300 nM causes a concentration-dependent potentiation of phytohaemagglutinin (PHA)-induced interleukin-2 (IL-2) release from human peripheral blood mononuclear cells in culture. At concentrations of auranofin between 1 and 3 μM, PHA-stimulated IL-2 release was inhibited, and the drug is cytotoxic at these concentrations.

At concentrations of auranofin which potentiated PHA-induced IL-2 release, it had no effect on [3H]-thymidine incorporation. Auranofin, 3 to 300 nM caused a concentration-dependent increase in the population of peripheral blood mononuclear cells bearing the IL-2 receptor (Tac positive cells).

Auranofin, 300 nM caused an increase of approximately 100% in the glutathione level within the resting cells, and also increased the glutathione level in PHA-stimulated cells.

We conclude that auranofin acts early in the cell cycle, selectively to increase the release of IL-2 and the expression of Tac. The action of auranofin on cellular glutathione levels may alter the redox state of the cell which is known to be important in the control of transcription factor activation.

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Authors and Affiliations

  1. Department of Pharmacology, University College London, Gower Street, WC1E 6BT, London, UK

    I. A. M. Vint & J. C. Foreman

  2. Department of Biology, University College London, Gower Street, WC1E 6BT, London, UK

    B. M. Chain

Authors
  1. I. A. M. Vint
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  2. B. M. Chain
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  3. J. C. Foreman
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Vint, I.A.M., Chain, B.M. & Foreman, J.C. The effects of auranofin on activation and interleukin-2 release from human peripheral blood mononuclear cells. Agents and Actions 40, 209–214 (1993). https://doi.org/10.1007/BF01984063

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  • DOI: https://doi.org/10.1007/BF01984063

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