Show simple item record

dc.contributor.authorGarg, Hari G.
dc.contributor.authorCindhuchao, Naiyaratana
dc.contributor.authorQuinn, Deborah A.
dc.contributor.authorHales, Charles A.
dc.contributor.authorThanawiroon, Charuwan
dc.contributor.authorCapila, Ishan
dc.contributor.authorLinhardt, Robert J.
dc.identifier.citationHeparin Oligosaccharide Sequence and Size Essential for Inhibition of Pulmonary Artery Smooth Muscle Cell Proliferation, H.G. Garg, N. Cindhuchao, C. A. Hales, C. Thanawiroon, I. Capila, R. J. Linhardt, Carbohydrate Research, 337, 2359-2364, 2002.
dc.descriptionCarbohydrate Research, 337, 2359-2364
dc.descriptionNote : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
dc.description.abstractHeparin has a wide range of important biological activities including inhibition of pulmonary artery smooth muscle cell proliferation. To determine the minimum size of the heparin glycosaminoglycan chain essential for antiproliferative activity, porcine intestinal mucosal heparin was partially depolymerized with heparinase and fractionated to give oligosaccharides of different sizes. The structure of these oligosaccharides was fully characterized by 1D and 2D 1H NMR spectroscopy. These oligosaccharides were assayed for antiproliferative effects on cultured bovine pulmonary artery smooth muscle cells (PASMCs). The tetrasaccharide (4-mer) exhibited no heparin-like activity. Decasaccharides (10-mers) and dodecasaccharides (12-mers) displayed a reduced level of activity when compared to full-length heparin. Little effect on activity was observed in deca- and dodecasaccharides with one less 2-O-sulfo group. The 14-, 16-, and 18-mers showed comparable growth-inhibition effects on PAMSC as porcine intestinal mucosal heparin. These data suggest that a 14-mer is the minimum size of oligosaccharide that is essential for full heparin-like antiproliferative activity. Since the 14- to 18-mers have no 3-O-sulfo groups in their glucosamine residues, their full activity confirms that these 3-O-sulfonated glucosamine residues, which are required for heparin's anticoagulant activity, are not an essential requirement for antiproliferative activity.
dc.description.sponsorshipNational Institutes of Health
dc.relation.ispartofThe Linhardt Research Labs Online Collection
dc.relation.ispartofRensselaer Polytechnic Institute, Troy, NY
dc.relation.ispartofCarbohydrate Research
dc.subjectChemistry and chemical biology
dc.subjectChemical and biological engineering
dc.subjectBiomedical engineering
dc.titleHeparin Oligosaccharide Sequence and Size Essential for Inhibition of Pulmonary Artery Smooth Muscle Cell Proliferation
dc.rights.holderIn Copyright : this Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.relation.departmentThe Linhardt Research Labs.
dc.relation.departmentThe Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS)

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record