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Aspirin-Triggered Resolvin D1-modified Materials Promote the Accumulation of Pro-regenerative Immune Cell Subsets and Enhance Vascular Remodeling

Overview
Journal Acta Biomater
Publisher Elsevier
Date 2017 Feb 19
PMID 28213094
Citations 32
Authors
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Abstract

Statement Of Significance: This work is motivated by our efforts to explore the underlying mechanisms of inflammation resolution after injury and to develop biomaterial-based approaches to amplify endogenous mechanisms of resolution and repair. Though specific lipid mediators have been identified that actively promote the resolution of inflammation, biomaterial-based localized delivery of these mediators has been largely unexplored. We loaded Aspirin-Triggered Resolvin D1 into a PLGA scaffold and examined the effects of sustained, localized delivery on the innate immune response. We found that biomaterial delivery of resolvin was able to enhance the accumulation of pro-regenerative populations of immune cells, including anti-inflammatory monocytes, population that has never before been shown to respond to resolvin treatment, and also enhance vascular remodeling in response to tissue injury.

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