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. 1988 Mar;3(2-3):135-42.
doi: 10.1007/BF02798924.

Influence of a small molecular weight proteinase inhibitor, gabexate mesilate (FOY), on insulin receptor function in vitro

R Göke  1 , B Göke, H J Steinfelder, R Arnold
Affiliations

Influence of a small molecular weight proteinase inhibitor, gabexate mesilate (FOY), on insulin receptor function in vitro

R Göke et al. Int J Pancreatol. 1988 Mar.

Abstract

The effects of the low molecular weight serine proteinase inhibitor FOY (gabexate mesilate) upon insulin action was studied in three different experimental systems. Placenta membranes containing insulin receptors preincubated with FOY (10 microM) showed a reduction of insulin-stimulated tyrosine kinase activity (p less than 0.01). However, FOY (0.1-100 microM) did not affect the insulin-stimulated tyrosine kinase activity in a preparation of solubilized and partially purified insulin receptors from placental membranes. Isolated adipocytes were used to study the effect of FOY on intact cells. FOY neither altered the insulin induced inhibition of the catecholamine-stimulated lipolysis nor (at the low concentration of 0.1 mM) the stimulation of glucose transport by the hormone. High concentrations (0.5 mM) of FOY decreased the effect of insulin on the hexose transport.

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