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  • Title: The effect of a new antirheumatic drug, triethylphosphine gold (auranofin), on in vitro lymphocyte and monocyte cytotoxicity.
    Author: Russell AS, Davis P, Miller C.
    Journal: J Rheumatol; 1982; 9(1):30-5. PubMed ID: 6806471.
    Abstract:
    Therapeutic serum concentrations of auranofin, expressed as elemental gold, range from 0.25 - 1.0 micrograms/ml. Monocyte antibody dependent cellular cytotoxicity (ADCC) could be reduced by up to 50% at a gold concentration of 0.125 micrograms/ml. Lymphocyte ADCC was much less dramatically affected although 2.5 micrograms/ml produced virtually complete inhibition. The most surprising finding is a marked stimulation of natural killer (NK) cell activity using a variety of targets. NK activity was markedly enhanced by concentrations of 0.125 to 0.5 micrograms/ml (range 2-500%). This is a biphasic dose dependent response. 1.0 micrograms/ml was depressive and 2.5 micrograms/ml completely abolished NK cell activity. Whether these selected in vitro responses play a role in modulating tissue damage in vivo is yet to be determined.
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