Peroxisome Proliferator-Activated Receptor γ: Implications for Cardiovascular Disease

Author:

Hsueh Willa A.1,Bruemmer Dennis1

Affiliation:

1. From Division of Endocrinology, Diabetes, and Hypertension, David Geffen School of Medicine, University of California, Los Angeles.

Abstract

Peroxisome proliferator-activated receptor γ (PPARγ) is a ligand-activated transcription factor belonging to the nuclear hormone receptor superfamily. PPARγ is expressed by macrophages, endothelial cells, and vascular smooth muscle cells. It regulates gene expression of key proteins involved in lipid metabolism, vascular inflammation, and proliferation contributing to atherogenesis and postangioplasty restenosis. The discovery of synthetic ligands for PPARγ has led to significant enhancement of our understanding of the mechanism of their ligand-dependent activation and subsequent biological effects, particularly with respect to the role of PPARγ in vascular pathophysiology. The thiazolidinedione PPARγ agonists not only improve insulin resistance in patients with type II diabetes but also exert a broad spectrum of antiatherogenic effects in vitro and in animal models of atherosclerosis. In this review, we summarize the important role of PPARγ as a molecular target for thiazolidinediones and its implications for the control of vascular inflammation and proliferation for the cardiovascular system.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Internal Medicine

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