Synthetic High-Density Lipoprotein-Mediated Targeted Delivery of Liver X Receptors Agonist Promotes Atherosclerosis Regression

5Citations
Citations of this article
17Readers
Mendeley users who have this article in their library.

Abstract

Targeting at enhancing reverse cholesterol transport (RCT) is apromising strategy for treating atherosclerosis via infusion of reconstitute high density lipoprotein (HDL) as cholesterol acceptors or increase of cholesterol efflux by activation of macrophage liver X receptors (LXRs). However, systemic activation of LXRs triggers excessive lipogenesis in the liver and infusion of HDL downregulates cholesterol efflux from macrophages. Here we describe an enlightened strategy using phospholipid reconstituted apoA-I peptide (22A)-derived synthetic HDL (sHDL) to deliver LXR agonists to the atheroma and examine their effect on atherosclerosis regression in vivo. A synthetic LXR agonist, T0901317 (T1317) was encapsulated in sHDL nanoparticles (sHDL-T1317). Similar to the T1317 compound, the sHDL-T1317 nanoparticles upregulated the expression of ATP-binding cassette transporters and increased cholesterol efflux in macrophages in vitro and in vivo. The sHDL nanoparticles accumulated in the atherosclerotic plaques of ApoE-deficient mice. Moreover, a 6-week low-dose LXR agonist-sHDL treatment induced atherosclerosis regression while avoiding lipid accumulation in the liver. These findings identify LXR agonist loaded sHDL nanoparticles as a promising therapeutic approach to treat atherosclerosis by targeting RCT in a multifaceted manner: sHDL itself serving as both a drug carrier and cholesterol acceptor and the LXR agonist mediating upregulation of ABC transporters in the aorta.

Cite

CITATION STYLE

APA

Guo, Y., Yuan, W., Yu, B., Kuai, R., Hu, W., Morin, E. E., … Eugene Chen, Y. (2018). Synthetic High-Density Lipoprotein-Mediated Targeted Delivery of Liver X Receptors Agonist Promotes Atherosclerosis Regression. EBioMedicine, 28, 225–233. https://doi.org/10.1016/j.ebiom.2017.12.021

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free