Responses of the colonic epithelium to auranofin: evidence for involvement of enteric nerves.

de Beaux, A; Keenan, C M; Tytgat, K; Rangachari, P K · J Rheumatol · 1990

basic_science · Level V

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Abstract

Auranofin, the orally effective gold compound, stimulated the canine colonic epithelium in vitro. It increased short circuit currents across both the innervated mucosal and functionally "nerve-free" epithelial preparation, when added to either the luminal or serosal solutions. Serosal responses were inhibited by tetrodotoxin (TTX). A hydrophilic gold compound, sodium aurothiosulphate produced similar effects but only on serosal addition. Gold compounds can thus alter colonic transport activating enteric nerves and releasing a neurotransmitter. Thus gold induced diarrhea could have a significant neural component.

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