Effect of gold sodium thiomalate and its thiomalate component on the in vitro expression of endothelial cell adhesion molecules

Peter M. Newman, Shing Shun Tony To, Bruce G. Robinson, Valentine J. Hyland, Leslie Schrieber

Research output: Journal article publicationJournal articleAcademic researchpeer-review

25 Citations (Scopus)

Abstract

Endothelial adhesion molecules play an important role in the tissue recruitment of leukocytes in inflammatory conditions such as rheumatoid arthritis. We have investigated the effect of the antirheumatic drug gold sodium thiomalate on adhesion molecule protein and mRNA expression in cultured human endothelial cells. Gold sodium thiomalate inhibited cytokine (TNF, IL-1, IL-4)-stimulated expression of vascular cell adhesion molecule-1 and E-selectin but not intercellular adhesion molecule-1 on endothelial cells. Gold sodium thiomalate also suppressed TNF-stimulated increases in vascular cell adhesion molecule-1 and E-selectin mRNA levels but had no effect on intercellular adhesion molecule-1 mRNA. Thiomalate (mercaptosuccinate), but not gold thioglucose or D-penicillamine, mimics the effect of gold sodium thiomalate at equimolar concentrations. We propose that the inhibition of vascular cell adhesion molecule-1 and E-selectin expression by gold sodium thiomalate is due to its thiomalate and not its gold component. Gold sodium thiomalate has a direct effect on endothelial adhesion molecule expression, and this may contribute to its antiinflammatory activity.
Original languageEnglish
Pages (from-to)1864-1871
Number of pages8
JournalJournal of Clinical Investigation
Volume94
Issue number5
DOIs
Publication statusPublished - 1 Jan 1994
Externally publishedYes

Keywords

  • cell adhesion molecules, drug effects
  • E-selectin
  • endothelium
  • intercellular adhesion molecule-1
  • vascular cell adhesion molecule-1

ASJC Scopus subject areas

  • Medicine(all)

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