Journal
CARDIOVASCULAR RESEARCH
Volume 117, Issue 13, Pages 2563-2574Publisher
OXFORD UNIV PRESS
DOI: 10.1093/cvr/cvab309
Keywords
Atherosclerosis; Ageing; Inflammation; Immunology; hematopoiesis
Categories
Funding
- National Institutes of Health or NIH [HL119587, HL141127, R35GM131842]
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Inflammation-resolution is a highly coordinated process governed by endogenous factors, with imbalances potentially leading to non-resolving inflammation and diseases. Recent studies emphasize the importance of balanced ratios of specialized pro-resolving mediators and pro-inflammatory lipids in timely inflammation resolution. Future research aims to address therapeutic strategies and mechanisms of disease related to these imbalances in order to tackle important human diseases such as atherosclerosis.
The resolution of inflammation (or inflammation-resolution) is an active and highly coordinated process. Inflammation-resolution is governed by several endogenous factors, and specialized pro-resolving mediators (SPMs) are one such class of molecules that have robust biological function. Non-resolving inflammation is associated with a variety of human diseases, including atherosclerosis. Moreover, non-resolving inflammation is a hallmark of ageing, an inevitable process associated with increased risk for cardiovascular disease. Uncovering mechanisms as to why inflammation-resolution is impaired in ageing and in disease and identifying useful biomarkers for non-resolving inflammation are unmet needs. Recent work has pointed to a critical role for balanced ratios of SPMs and pro-inflammatory lipids (i.e. leucotrienes and/or specific prostaglandins) as a key determinant of timely inflammation resolution. This review will focus on the accumulating findings that support the role of non-resolving inflammation and imbalanced pro-resolving and pro-inflammatory mediators in atherosclerosis. We aim to provide insight as to why these imbalances occur, the importance of ageing in disease progression, and how haematopoietic function impacts inflammation-resolution and atherosclerosis. We highlight open questions regarding therapeutic strategies and mechanisms of disease to provide a framework for future studies that aim to tackle this important human disease.
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