Cited by 288Proteoglycans and glycosaminoglycans researchCell Adhesion Molecules ResearchCarbohydrate Chemistry and Synthesis

Heparin’s anti-inflammatory effects require glucosamine 6-o-sulfation and are mediated by blockade of L- and P-selectins

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Wang, Lianchun, Brown, Jillian R., Varki, Ajit, Esko, Jeffrey D.·2002·Journal of Clinical Investigation

Abstract

Heparin has been used clinically as an anticoagulant and antithrombotic agent for over 60 years.Here we show that the potent anti-inflammatory property of heparin results primarily from blockade of P-selectin and L-selectin.Unfractionated heparin and chemically modified analogs were tested as inhibitors of selectin binding to immobilized sialyl Lewis X and of cell adhesion to immobilized selectins or thrombin-activated endothelial cells.Compared with unfractionated heparin, the modified heparinoids had inhibitory activity in this general order: over-O-sulfated heparin > heparin > 2-O,3-O-desulfated ≥ N-desulfated/N-acetylated heparin ≥ carboxyl-reduced heparin ≥ N-,2-O,3-Odesulfated heparin >> 6-O-desulfated heparin.The heparinoids also showed similar differences in their ability to inhibit thioglycollate-induced peritonitis and oxazolone-induced delayed-type hypersensitivity.Mice deficient in P-or L-selectins showed impaired inflammation, which could be further reduced by heparin.However, heparin had no additional effect in mice deficient in both P-and L-selectins.We conclude that (a) heparin's anti-inflammatory effects are mainly mediated by blocking P-and L-selectin-initiated cell adhesion; (b) the sulfate groups at C6 on the glucosamine residues play a critical role in selectin inhibition; and (c) some non-anticoagulant forms of heparin retain anti-inflammatory activity.Such analogs may prove useful as therapeutically effective inhibitors of inflammation.

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  • As a consequence of their antiselectin activity, these polysaccharides attenuated metastasis and inflammation.

    “As a consequence of their antiselectin activity, these polysaccharides attenuated metastasis and inflammation [150,151,152].”
  • Some polysaccharides from marine animals inhibited the binding of pro-inflammatory molecules P- and L-selectins to immobilized carbohydrate determinant sialyl Lewisx.

    “Some polysaccharides from the marine animals inhibited the binding of pro-inflammatory molecules, P- and L-selectins, to immobilized carbohydrate determinant sialyl Lewisx which is a component of cell surface glycoproteins presented in leukocytes and overexpressed in several tumor cells.”

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Authors
Wang, L., Brown, J. R., Varki, A., & Esko, J. D.
Affiliations
University of California San Diego (US)
Corresponding author
Esko, Jeffrey D.
Venue
Journal of Clinical Investigation
Published
2002-07-01
Volume
110
Issue
1
Pages
127-136
ISSN
0021-9738 (ISSN-L)
OpenAlex
W4250801983
Cited by
288
References
72
Citations by year
2026: 9 · 2025: 5 · 2024: 9 · 2023: 6 · 2022: 3 · 2021: 11 · 2020: 11 · 2019: 9 · 2018: 14 · 2017: 11 · 2016: 16 · 2015: 15 · 2014: 11 · 2013: 15 · 2012: 12
FWCI
5.35
Type
journal article
Language
en
Open access
Locations
Journal of Clinical Investigation (publishedVersion)
Funders
  • National Institutes of Health
  • University of California, San Diego
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Proteoglycans and glycosaminoglycans research
  • Health Sciences › Medicine › Immunology and Allergy › Cell Adhesion Molecules Research
  • Physical Sciences › Chemistry › Organic Chemistry › Carbohydrate Chemistry and Synthesis
Keywords
heparin, anti-inflammatory activity, P-selectin, L-selectin, cell adhesion, sialyl Lewis X, heparinoids, peritonitis, delayed-type hypersensitivity, inflammation

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