Macrophages in atherosclerosis: a dynamic balance

KJ Moore, FJ Sheedy, EA Fisher - Nature Reviews Immunology, 2013 - nature.com
Nature Reviews Immunology, 2013nature.com
Atherosclerosis is a chronic inflammatory disease that arises from an imbalance in lipid
metabolism and a maladaptive immune response driven by the accumulation of cholesterol-
laden macrophages in the artery wall. Through the analysis of the progression and
regression of atherosclerosis in animal models, there is a growing understanding that the
balance of macrophages in the plaque is dynamic and that both macrophage numbers and
the inflammatory phenotype influence plaque fate. In this Review, we summarize recently …
Abstract
Atherosclerosis is a chronic inflammatory disease that arises from an imbalance in lipid metabolism and a maladaptive immune response driven by the accumulation of cholesterol-laden macrophages in the artery wall. Through the analysis of the progression and regression of atherosclerosis in animal models, there is a growing understanding that the balance of macrophages in the plaque is dynamic and that both macrophage numbers and the inflammatory phenotype influence plaque fate. In this Review, we summarize recently identified pro- and anti-inflammatory pathways that link lipid and inflammation biology with the retention of macrophages in plaques, as well as factors that have the potential to promote their egress from these sites.
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