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Originally published online as doi:10.1189/jlb.1206761 on March 29, 2007

Published online before print March 29, 2007
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(Journal of Leukocyte Biology. 2007;82:226-236.)
© 2007 by Society for Leukocyte Biology

Chemokine regulation of atherosclerosis

Jana Barlic and Philip M. Murphy1

Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA

1 Correspondence: NIH, NIAID, Bldg. 10, Rm. 11N113, Bethesda, MD 20892, USA. E-mail: pmm{at}nih.gov

ABSTRACT

Oxidative stress and inflammation are accepted as major factors in the pathogenesis of atherosclerosis, but how they interact to produce a plaque has not been delineated clearly. Recent data suggest that oxidized lipids may act in part by regulating production of chemokines and chemokine receptors, which in turn, may direct monocytes and other blood leukocytes to the vessel wall, where they may interact with endothelial cells and smooth muscle cells. The receptors may act at the level of recruitment, retention, and egress, not only through classic, chemotactic mechanisms but also through direct, intercellular adhesion. The results suggest a coordinated mechanism for inflammatory cell accumulation in plaque and identify novel targets, such as CCR2 and CX3CR1, for potential drug development in coronary artery disease.

Key Words: leukocytes • atherogenesis




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