Cited by 59Angiogenesis and VEGF in CancerAxon Guidance and Neuronal SignalingLymphatic System and Diseases

Sulfated polysaccharides identified as inducers of neuropilin-1 internalization and functional inhibition of VEGF165 and semaphorin3A

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Narazaki, Masashi, Segarra, Marta, Tosato, Giovanna·2008·Blood

Abstract

Neuropilin-1 (NRP1) and NRP2 are cell surface receptors shared by class 3 semaphorins and vascular endothelial growth factor (VEGF). Ligand interaction with NRPs selects the specific signal transducer, plexins for semaphorins or VEGF receptors for VEGF, and promotes NRP internalization, which effectively shuts down receptor-mediated signaling by a second ligand. Here, we show that the sulfated polysaccharides dextran sulfate and fucoidan, but not others, reduce endothelial cell-surface levels of NRP1, NRP2, and to a lesser extent VEGFR-1 and VEGFR-2, and block the binding and in vitro function of semaphorin3A and VEGF(165). Administration of fucoidan to mice reduces VEGF(165)-induced angiogenesis and tumor neovascularization in vivo. We find that dextran sulfate and fucoidan can bridge the extracellular domain of NRP1 to that of the scavenger receptor expressed by endothelial cells I (SREC-I), and induce NRP1 and SREC-I coordinate internalization and trafficking to the lysosomes. Overexpression of SREC-I in SREC-I-negative cells specifically reduces cell-surface levels of NRP1, indicating that SREC-I mediates NRP1 internalization. These results demonstrate that engineered receptor internalization is an effective strategy for reducing levels and function of cell-surface receptors, and identify certain sulfated polysaccharides as "internalization inducers."

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  1. Gluzman-Poltorak Z, Cohen T, Herzog Y, Neufeld G. Neuropilin-2 is a receptor for the vascular en- dothelial growth factor (VEGF) forms VEGF-145 and VEGF-165 [corrected]. J Biol Chem. 2000; 275:18040-18045.
  2. Sawamura T, Kume N, Aoyama T, et al. An endo- thelial receptor for oxidized low-density lipopro- tein. Nature. 1997;386:73-77.

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Authors
Narazaki, M., Segarra, M., & Tosato, G.
Affiliations
National Institutes of Health (US)
Venue
Blood
Published
2008-04-15
Volume
111
Issue
8
Pages
4126-4136
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W1974007852
Cited by
59
References
61
Citations by year
2026: 1 · 2025: 2 · 2024: 4 · 2023: 3 · 2022: 5 · 2020: 5 · 2019: 4 · 2018: 1 · 2017: 3 · 2016: 5 · 2015: 1 · 2014: 7 · 2013: 2 · 2012: 2
FWCI
1.92
Type
journal article
Language
en
Open access
Locations
  • Blood (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Axon Guidance and Neuronal Signaling
  • Health Sciences › Medicine › Oncology › Lymphatic System and Diseases
Keywords
neuropilin-1, neuropilin-2, sulfated polysaccharides, dextran sulfate, fucoidan, receptor internalization, semaphorin 3A, VEGF165, VEGFR1, VEGFR2, angiogenesis inhibition, tumor angiogenesis, lysosomal trafficking, endothelial cells
MeSH terms
Animals, Cell Line, Endocytosis, Humans, Polysaccharides, Protein Binding, Dextran Sulfate, Protein Structure, Tertiary, Neovascularization, Physiologic, Neuropilin-1, Semaphorin-3A, Vascular Endothelial Growth Factor A, Endothelial Cells, Scavenger Receptors, Class F, Lysosomal Membrane Proteins, Lysosomal-Associated Membrane Protein 1

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