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Inhibition of Tumor-Host Cell Interactions Using Synthetic Heparin Mimetics
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- Gockel, Lukas M. (author)
- Univ Bonn, Pharmaceut Inst, Pharmaceut & Cell Biol Chem, D-53121 Bonn, Germany.
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- Heyes, Martin (author)
- Univ Bonn, Pharmaceut Inst, Pharmaceut & Cell Biol Chem, D-53121 Bonn, Germany.
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- Li, Honglian (author)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Science for Life Laboratory, SciLifeLab
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- Univ Bonn, Pharmaceut Inst, Pharmaceut & Cell Biol Chem, D-53121 Bonn, Germany Institutionen för medicinsk biokemi och mikrobiologi (creator_code:org_t)
- 2021-02-03
- 2021
- English.
- In: ACS Applied Materials and Interfaces. - : American Chemical Society (ACS). - 1944-8244 .- 1944-8252. ; 13:6, s. 7080-7093
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Low-molecular-weight heparin (LMWH) is the guideline-based drug for antithrombotic treatment of cancer patients, while its direct antitumor effects are a matter of ongoing debate. Although therapeutically established for decades, LMWH has several drawbacks mainly associated with its origin from animal sources. Aiming to overcome these limitations, a library of synthetic heparin mimetic polymers consisting of homo- and copolymers of sulfonated and carboxylated noncarbohydrate monomers has recently been synthesized via reversible addition-fragmentation chain transfer polymerization. These heparin mimetics were investigated for their capacities to interfere with simulated steps of tumor cell metastasis. Among them, homo- and copolymers from sodium 4-styrenesulfonate (poly(SSS)) with acrylic acid (poly(SSS-co-AA)) with an MW between 5 and 50 kDa efficiently attenuated cancer cell-induced coagulation and thus platelet activation and degranulation similar to or even better than LMWH. Furthermore, independent of anticoagulant activities, these polymers affected other metastasis-relevant targets with impressive affinities. Hence, they blocked heparanase enzymatic activity outmatching commercial heparins or a glycosidic drug candidate. Furthermore, these polymers bind P-selectin and the integrin VLA-4 similar to or even better than heparin, indicated by a biosensor approach and thus efficiently blocked melanoma cell binding to endothelium under blood flow conditions. This is the first report on the prospects of synthetic heparin mimetics as promising nontoxic compounds in oncology to potentially substitute heparin as an anticoagulant and to better understand its role as an antimetastatic drug.
Subject headings
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
Keyword
- cancer
- heparanase
- heparin mimetics
- metastasis
- platelets
- VLA-4
- VCAM-1
- P-selectin
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- ref (subject category)
- art (subject category)
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