circARCN1 is mainly localized in CD68+ macrophages within human atherosclerotic plaques, compared with endothelial cells and smooth muscle cells. The study links macrophage-expressed circARCN1 to plaque inflammation through the HuR-USP31-NF-κB axis.
CircARCN1 aggravates atherosclerosis by regulating HuR-mediated USP31 mRNA in macrophages.