Metabolism of innate immune cells: impact on atherosclerosis

Current Opinion in Lipidology
Niels P Riksen, Rinke Stienstra

Abstract

It is increasingly recognized that profound metabolic changes occur in activated myeloid cells, which shape their inflammatory phenotype and cellular functions. The purpose of this review is to summarize the accumulating evidence that major metabolic adaptations occur in monocytes and macrophages in the context of atherosclerosis ultimately modulating atherosclerotic plaque formation. Plaque macrophages show a profound metabolic reprogramming which is driven by atherogenic factors in the plaque microenvironment, such as damage associated molecular patterns, modified lipoproteins, and hypoxia. In addition, systemic atherogenic factors modulate metabolism of circulating monocytes and their bone marrow progenitors. Activation of glycolysis, the pentose phosphate pathway, and fatty acid synthesis, a reduction of fatty acid oxidation accompanied by complex changes in the lysosomal handling of lipids all appear to facilitate atherogenesis. These processes also drive the development of trained immunity, a phenomenon describing the persistent pro-inflammatory phenotype that develops after brief stimulation of monocytes with pro-atherogenic stimuli. A pro-atherosclerotic environment reprograms the metabolism of myeloid cells in the vari...Continue Reading

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Citations

May 12, 2020·World Journal of Gastroenterology : WJG·Jawaher AlharthiMohammed Eslam
Mar 11, 2020·Frontiers in Immunology·Chao ZhongJun Yu
Dec 8, 2020·Frontiers in Cell and Developmental Biology·Kikkie PoelsJeffrey Kroon

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