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CXCL16/SR-PSOX: a friend or a foe in atherosclerosis?
Örebro University, School of Health and Medical Sciences.
2008 (English)In: Atherosclerosis, ISSN 0021-9150, E-ISSN 1879-1484, Vol. 197, no 2, p. 487-495Article in journal (Refereed) Published
Abstract [en]

Chemokines, scavenger receptors and adhesion molecules have long been known as important players in the pathogenesis of atherosclerosis. A series of studies conducted in the past few years described CXCL16/SR-PSOX—a new molecule combining those three functions, and suggested that CXCL16/SR-PSOX can be a potential player in atherogenesis. Initial ex vivo studies showed that CXCL16/SR-PSOX is abundant in human and murine atherosclerotic lesions. Following in vitro studies suggested that as an adhesion molecule CXCL16/SR-PSOX might mediate T-cell adhesion to the endothelium, as a chemokine – drive T-cell migration, stimulate cell proliferation and elicit inflammatory phenotype in smooth muscle cells (SMC) and, finally, as a scavenger receptor – mediate uptake of atherogenic lipoproteins by macrophages and SMC. All these effects are known to be pro-atherogenic. Surprisingly, in vivo studies performed in murine models of atherosclerosis suggested that CXCL16/SR-PSOX is atheroprotective, while its receptor CXCR6 is harmful. In addition, studies investigating the association of circulating CXCL16/SR-PSOX plasma concentrations with the presence and extent of coronary artery disease (CAD) in humans are controversial suggesting both positive, negative and no association. To finally answer the question whether CXCL16/SR-PSOX can serve as a causative factor, biomarker or even a therapeutic target in atherosclerosis, we are currently in need of carefully designed animal and human studies investigating the effects of CXCL16/SR-PSOX and CXCR6 deficiency, inhibition and over-expression on the progression of atherosclerosis. Such complex approach will help us unravel the mystery of CXCL16/SR-PSOX in atherosclerosis and hopefully develop better ways of treating atherosclerosis by targeting this interesting molecule.

Place, publisher, year, edition, pages
Amsterdam: Elsevier , 2008. Vol. 197, no 2, p. 487-495
Keywords [en]
Animals, Atherosclerosis/immunology/physiopathology, Biological Markers, Chemokine CXCL6/*immunology, Chemokines; CXC/*immunology, Disease Models; Animal, Endothelium; Vascular/immunology/physiopathology, Humans, Mice, Receptors; CXCR/immunology, Receptors; Chemokine/immunology, Receptors; Scavenger/*immunology, Receptors; Virus/immunology
National Category
Medical and Health Sciences Cardiac and Cardiovascular Systems
Research subject
Medicine
Identifiers
URN: urn:nbn:se:oru:diva-4622DOI: 10.1016/j.atherosclerosis.2007.11.034PubMedID: 18191863OAI: oai:DiVA.org:oru-4622DiVA, id: diva2:138921
Available from: 2008-10-08 Created: 2008-10-08 Last updated: 2017-12-14Bibliographically approved

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Sirsjö, Allan

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