Nature Research, Nature Reviews Immunology, 10(13), p. 709-721, 2013
DOI: 10.1038/nri3520
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Atherosclerosis is a chronic inflammatory disease arising 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 animal models of atherosclerosis progression and regression, there is a growing understanding that the balance of macrophages in the plaque is dynamic, with both macrophage numbers and an inflammatory phenotype influencing plaque fate. Here we summarize recently identified pro- and anti-inflammatory pathways linking lipid and inflammation biology with the retention of macrophages in plaques, as well as factors with the potential to promote their egress from these sites.