Acta Biochim Pol. 2001;48(2):563-72.

Effects of wheat germ agglutinin and concanavalin A on the accumulation of glycosaminoglycans in pericellular matrix of human dermal fibroblasts. A comparison with insulin.

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Department of Molecular Immunology, Institute of Biochemistry, Kiev, Ukraine. berezan@matheber.carrier.kiev.ua

Abstract

The effect of insulin, wheat germ agglutinin (WGA), peanut agglutinin (PNA) and concanavalin A (ConA) on [3H]glucosamine incorporation into pericellular glycosaminoglycans (GAGs) was investigated in two lines of cultured human dermal fibroblasts. Insulin and WGA stimulated [3H]glucosamine incorporation into hyaluronic acid (HA) and heparan sulphate (HS) without any alteration of chondroitin sulphate (CS) and dermatan sulphate (DS) contents. ConA increased [3H]glucosamine incorporation into HS, CS and DS, but had no effect on [3Hglucosamine incorporation into HA. PNA affected neither the content, nor the composition of GAGs. In contrast to PNA, ConA and WGA stimulated glycolysis and demonstrated an evident antiproliferative effect on dermal fibroblasts. Thus, both the insulin-like action of WGA and ConA on cultured dermal fibroblasts and the differences between the effects of lectins on modulation of GAGs synthesis appear to be determined by their chemical structure.

PMID:: 11732625; [PubMed - indexed for MEDLINE]

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Effects of wheat germ agglutinin and concanavalin A on the accumulation of glycosaminoglycans in pericellular matrix of human dermal fibroblasts. A comparison with insulin.

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