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Oxidative stress induces angiogenesis by activating TLR2 with novel endogenous ligands

Oxidative stress induces angiogenesis by activating TLR2 with novel endogenous ligands Inflammation is known to cause oxidative stress and the growth of new blood vessels, and now a molecular mechanism linking these processes has been found. Oxidized products of lipid oxidation — (carboxy alkyl)pyrrole protein adducts — are generated during inflammation and wound healing. These products are shown to act as endogenous agonists for Toll-like receptor 2 (TLR2), which stimulates blood vessel growth through a mechanism that is independent of vascular endothelial growth factor. This work establishes a new function for TLR2 as a sensor of oxidation-associated molecular patterns, providing a link connecting inflammation, oxidative stress, innate immunity and angiogenesis. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nature Springer Journals

Oxidative stress induces angiogenesis by activating TLR2 with novel endogenous ligands

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References (32)

Publisher
Springer Journals
Copyright
Copyright © 2010 by Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.
Subject
Science, Humanities and Social Sciences, multidisciplinary; Science, Humanities and Social Sciences, multidisciplinary; Science, multidisciplinary
ISSN
0028-0836
eISSN
1476-4687
DOI
10.1038/nature09421
Publisher site
See Article on Publisher Site

Abstract

Inflammation is known to cause oxidative stress and the growth of new blood vessels, and now a molecular mechanism linking these processes has been found. Oxidized products of lipid oxidation — (carboxy alkyl)pyrrole protein adducts — are generated during inflammation and wound healing. These products are shown to act as endogenous agonists for Toll-like receptor 2 (TLR2), which stimulates blood vessel growth through a mechanism that is independent of vascular endothelial growth factor. This work establishes a new function for TLR2 as a sensor of oxidation-associated molecular patterns, providing a link connecting inflammation, oxidative stress, innate immunity and angiogenesis.

Journal

NatureSpringer Journals

Published: Oct 3, 2010

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