Effect of Carboxyl-Reduced Heparin on the Growth Inhibition of Bovine Pulmonary Artery Smooth Muscle Cells

Authors
Garg, Hari G.
Mrabat, Hicham
Yu, Lunyin
Freeman, Craig
Li, Boyangzi
Zhang, Fuming
Linhardt, Robert J.
Hales, Charles A.
ORCID
https://orcid.org/0000-0003-2219-5833
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Issue Date
2010-06-16
Keywords
Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
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Full Citation
Effect of Carboxyl-Reduced Heparin on the Growth Inhibition of Bovine Pulmonary Artery Smooth Muscle Cells, H.G. Garg, H. Mrabat, L. Yu, C. Freeman, B. Li, F. Zhang, R. J. Linhardt, C. A. Hales, Carbohydrate Research, 345, 1084–1087, 2010.
Abstract
Heparin (HP) inhibits the proliferation of bovine pulmonary artery smooth muscle cells (BPASMC's), among other cell types in vitro. In order to develop a potential therapeutic agent to reverse vascular remodeling, we are involved in deciphering the relationship between the native HP structure and its antiproliferative potency. We have previously reported the influence of the molecular size and the effects of various O-sulfo and N-acetyl groups of HP on growth-inhibitory activity. In this study, to understand the influence of carboxyl groups in the HP structure required for endogenous activity, a chemically modified derivative of native HP was prepared by converting the carboxyl groups of hexuronic acid residues in HP to primary hydroxyl groups. This modification procedure involves the treatment of HP with N-(3-dimethylaminopropyl)-N-ethylcarbodiimide followed by reduction with NaBH(4) to yield carboxyl-reduced heparin (CR-HP). When compared to the antiproliferative potency of native HP on cultured BPASMC's at three dose levels (1, 10, and 100 microg/mL), the CR-HP showed significantly less potency at all the doses. These results suggest that hexuronic acid residues in both major and variable sequences in HP are essential for the antiproliferative properties of native HP.
Description
Carbohydrate Research, 345, 1084–1087
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Department
The Linhardt Research Labs.
The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS)
Publisher
Elsevier
Relationships
The Linhardt Research Labs Online Collection
Rensselaer Polytechnic Institute, Troy, NY
Carbohydrate Research
https://harc.rpi.edu/
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A full text version is available in DSpace@RPI