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. 1991 Dec;139(6):1501–1509.

Antiproliferative effects of novel, nonanticoagulant heparin derivatives on vascular smooth muscle cells in vitro and in vivo.

L A Pukac 1, G M Hirsch 1, J C Lormeau 1, M Petitou 1, J Choay 1, M J Karnovsky 1
PMCID: PMC1886460  PMID: 1750515

Abstract

The proliferation of vascular smooth muscle cells (VSMC) is strongly inhibited by whole heparin both in vitro and in vivo. To identify and characterize antiproliferative, but nonanticoagulant heparin derivatives, heparin fragments made by periodate treatment were produced and acylated with 2-, 4-, or 6-carbon chain lengths. In culture, the 4- and 6-carbon acylated compounds were more effective than whole heparin in inhibiting serum stimulated VSMC growth at equal mass or approximately equal mean molar concentrations. Further testing was performed in the rat carotid balloon injury model. Myointimal VSMC proliferation produced by balloon catheterization of rat carotid arteries was inhibited by the 4-carbon acylated compound as effectively as heparin at the same mass dose. Importantly, unlike heparin, the 4-carbon acylated compound had no anticoagulant effect in vivo. These experiments suggest nonanticoagulant, acylated heparin derivatives may have a pharmacologic role in preventing myointimal proliferative lesions that are responsible for failures of vascular surgeries and angioplasties.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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