Circadian Effects on Vascular Immunopathologies

Circ Res. 2024 Mar 15;134(6):791-809. doi: 10.1161/CIRCRESAHA.123.323619. Epub 2024 Mar 14.ABSTRACTCircadian rhythms exert a profound impact on most aspects of mammalian physiology, including the immune and cardiovascular systems. Leukocytes engage in time-of-day-dependent interactions with the vasculature, facilitating the emigration to and the immune surveillance of tissues. This review provides an overview of circadian control of immune-vascular interactions in both the steady state and cardiovascular diseases such as atherosclerosis and infarction. Circadian rhythms impact both the immune and vascular facets of these interactions, primarily through the regulation of chemoattractant and adhesion molecules on immune and endothelial cells. Misaligned light conditions disrupt this rhythm, generally exacerbating atherosclerosis and infarction. In cardiovascular diseases, distinct circadian clock genes, while functioning as part of an integrated circadian system, can have proinflammatory or anti-inflammatory effects on these immune-vascular interactions. Here, we discuss the mechanisms and relevance of circadian rhythms in vascular immunopathologies.PMID:38484032 | DOI:10.1161/CIRCRESAHA.123.323619
Source: Circulation Research - Category: Cardiology Authors: Source Type: research