title: Lipoprotein carriers of microRNAs.
abstract: Lipoproteins, namely high-density lipoproteins (HDL), transport a wide-variety of cargo in addition to cholesterol and lipids. In 2011, HDL and low-density lipoproteins (LDL) were reported to transport microRNAs (miRNA). Since the original discovery, there has been great excitement for this topic and a handful of follow-up publications. Here, we review the current landscape of lipoprotein transport of miRNAs. HDL-miRNAs have been demonstrated to be altered in cardiovascular disease (CVD), including hypercholesterolemia and atherosclerosis. As such, HDL- and LDL-miRNAs may represent a novel class of disease biomarkers. Below, we review HDL-miR-92a and miR-486 levels in myocardial infarction and unstable angina, and HDL-miR-223 and miR-24 levels in coronary artery disease (CAD). Moreover, we address HDL's contribution to the total pool of extracellular miRNAs in plasma and differential distribution of miRNAs across HDL subspecies. Finally, we address current and future challenges for this new field and the barriers to such work. This article is part of a Special Issue entitled: MicroRNAs and lipid/energy metabolism and related diseases edited by Carlos Fernández-Hernando and Yajaira Suárez.
authors.affiliation: Department of Medicine, Vanderbilt Univ. Medical Center, Nashville, TN, USA.
authors.forename: Danielle L
authors.initials: DL
authors.lastname: Michell
authors.affiliation: Department of Medicine, Vanderbilt Univ. Medical Center, Nashville, TN, USA. Electronic address: kasey.c.vickers@Vanderbilt.edu.
authors.forename: Kasey C
authors.initials: KC
authors.lastname: Vickers
mesh_terms: D000818:Animals; D003324:Coronary Artery Disease / Q000235:genetics; D006801:Humans; D050356:Lipid Metabolism / Q000235:genetics; D008075:Lipoproteins, HDL / Q000235:genetics*; D053419:Lipoproteins, IDL / Q000235:genetics*; D035683:MicroRNAs / Q000235:genetics*
chemical_list: D008075:Lipoproteins, HDL; D053419:Lipoproteins, IDL; D035683:MicroRNAs
keywords: Extracellular microRNA; HDL; Lipoproteins; microRNA
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