Journal
CARDIOVASCULAR DRUGS AND THERAPY
Volume 25, Issue 5, Pages 419-429Publisher
SPRINGER
DOI: 10.1007/s10557-011-6341-5
Keywords
Ox-LDL; LOX-1; Oxidative stress; Atherosclerosis
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An elevated level of low density lipoprotein (LDL) cholesterol constitutes a major risk factor for genesis of atherosclerosis. Ox-LDL plays a more important role in the genesis and progression of atherosclerosis than the native LDL. Ox-LDL leads to endothelial dysfunction leading to expression of adhesion molecules and recruitment of monocyte in subendothelial space. Ox-LDL is taken up by macrophages via scavenger receptors, such as SR-A1, SR-A2 and LOX-1. Lately, LOX-1, a type II membrane protein receptor of ox-LDL, has gained much importance in relation to effects of ox-LDL on endothelial biology. Endothelial cells primarily express LOX-1 as receptor for ox-LDL and ox-LDL has been shown to upregulate expression of LOX-1. In addition, ox-LDL promotes the growth and migration of smooth muscle cells, monocytes/macrophages and fibroblasts. In this review we discuss the role of ox-LDL and LOX-1 in genesis and progression of atherosclerosis.
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