on July 31, 2008
Published online before print July 31, 2008, doi: 10.1161/ATVBAHA.107.155143
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Submitted on June 17, 2008
Accepted on July 21, 2008
Death Receptors and Their Ligands in Atherosclerosis
Mary M. Kavurma *;
From the Centre for Vascular Research (M.M.K., N.Y.T.), The University of New South Wales, Australia; and the Division of Cardiovascular Medicine (M.R.B.), University of Cambridge, Addenbrooke's Hospital, Cambridge, UK.
* To whom correspondence should be addressed. E-mail: m.kavurma{at}unsw.edu.au.
Abstract—Atherosclerosis is characterized by the accumulation of a fibro-fatty plaque consisting of immune cells, vascular smooth muscle cells (VSMCs), vascular endothelial cells (ECs), and extracellular matrix, surrounding a lipid-rich core. The complexity of atherosclerosis is highlighted by the multifaceted effects that apoptosis and proliferation of specific cell types can have on vessels at different stages of the disease. Death receptors are membrane-bound protein complexes that on binding their cognate ligand, activate an intracellular signaling cascade that results in apoptosis. More recently, signaling from these receptors has been shown to activate in multiple other processes, including cell proliferation. This review summarizes our current understanding of signaling events after death receptor activation and the role of death receptors and their ligands in atherosclerosis.
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