MicroRNA-223 coordinates cholesterol homeostasis

MicroRNA-223 coordinates cholesterol homeostasis.

MicroRNAs (miRNAs) regulate a wide variety of biological processes and contribute to metabolic homeostasis. Here, we demonstrate that microRNA-223 (miR-223), an miRNA previously associated with inflammation, also controls multiple mechanisms associated with cholesterol metabolism. miR-223 promoter activity and mature levels were found to be linked to cellular cholesterol states in hepatoma cell...

MicroRNA modulation of cholesterol homeostasis.

Although the roles of the sterol response element binding protein-1 (SREBP1) and SREBP2 transcription factors in regulating fatty acid and cholesterol synthesis and uptake have been known for some time, it was recently discovered that 2 related microRNAs (miRs), miR-33a and miR-33b, are embedded in these genes. Studies indicate that miR-33a and miR-33b act with their host genes, Srebp2 and Sreb...

Cholesterol homeostasis regulation by miR-223: basic science mechanisms and translational implications.

C holesterol homeostasis is a tightly regulated process. Previous work has been dominated by sterol-response element—related mechanisms, but the influence of micro-RNAs (miRs) is increasingly recognized, with miR-223 becoming a recent member of this group. Several micro-RNAs (miRNAs or miR-) have been reported to be involved in cholesterol homeostasis. 1–4 In a recent study, Vickers et al 5 pre...

MicroRNA 302a is a novel modulator of cholesterol homeostasis and atherosclerosis.

OBJECTIVE Macrophage foam cell formation is a key feature of atherosclerosis. Recent studies have shown that specific microRNAs (miRs) are regulated in modified low-density lipoprotein-treated macrophages, which can affect the cellular cholesterol homeostasis. Undertaking a genome-wide screen of miRs regulated in primary macrophages by modified low-density lipoprotein, miR-302a emerged as a pot...

MicroRNA-223 made its way into vascular research.