Abstract
Atherosclerotic coronary artery disease, the underlying basis for ischemic heart disease, is the leading cause of death and disability in the USA and recent trends indicate that coronary artery disease is also becoming a major public health problem in developing countries [1]. Atherosclerosis is a continuous process that is initiated early in life, which gradually progresses with potentially devastating consequences: atherosclerotic plaque rupture is the most common underlying pathological mechanism creating acute ischemic coronary syndromes [2]. This term refers to the process of disruption of the endothelial surface and the exposure of the underlying prothrombotic vessel wall to circulating platelets and coagulation factors. In order to identify the high-risk plaque we need to recognize its specific morphological and functional characteristics. The morphological characteristics have been identified in several human histopathological and in vivo studies, and include: 1) a large lipid core (≥40% plaque volume) composed of free cholesterol crystals, cholesterol esters, and oxidized lipids impregnated with tissue factor, 2) a thin fibrous cap depleted of smooth muscle cells and collagen, 3) an outward (positive) remodeling, 4) inflammatory cell infiltration of fibrous cap and adventitia (mostly monocyte- macrophages, activated T cells and mast cells), and 5) increased neovascularization. The terms vulnerable, unstable or ‘high-risk’ are now widely used to describe plaques that exhibit such features, irrespective of whether rupture of the fibrous cap is present [3].
Keywords: Vulnerable plaque, matrix metalloproteinases, inflammation, Atherosclerotic coronary artery disease, atherosclerotic plaque rupture, ischemic heart disease, pathological mechanism, acute ischemic coronary syndromes, endothelial surface, in vivo studies, smooth muscle cells, inflammatory cell infiltration, neovascularization, inflammatory cell infiltration
Current Topics in Medicinal Chemistry
Title:Matrix Metalloproteinases and Vulnerable Atheromatous Plaque
Volume: 12 Issue: 10
Author(s): Konstantinos Toutouzas, Andreas Synetos, Charalampia Nikolaou, Eleutherios Tsiamis, Dimitris Tousoulis and Christodoulos Stefanadis
Affiliation:
Keywords: Vulnerable plaque, matrix metalloproteinases, inflammation, Atherosclerotic coronary artery disease, atherosclerotic plaque rupture, ischemic heart disease, pathological mechanism, acute ischemic coronary syndromes, endothelial surface, in vivo studies, smooth muscle cells, inflammatory cell infiltration, neovascularization, inflammatory cell infiltration
Abstract: Atherosclerotic coronary artery disease, the underlying basis for ischemic heart disease, is the leading cause of death and disability in the USA and recent trends indicate that coronary artery disease is also becoming a major public health problem in developing countries [1]. Atherosclerosis is a continuous process that is initiated early in life, which gradually progresses with potentially devastating consequences: atherosclerotic plaque rupture is the most common underlying pathological mechanism creating acute ischemic coronary syndromes [2]. This term refers to the process of disruption of the endothelial surface and the exposure of the underlying prothrombotic vessel wall to circulating platelets and coagulation factors. In order to identify the high-risk plaque we need to recognize its specific morphological and functional characteristics. The morphological characteristics have been identified in several human histopathological and in vivo studies, and include: 1) a large lipid core (≥40% plaque volume) composed of free cholesterol crystals, cholesterol esters, and oxidized lipids impregnated with tissue factor, 2) a thin fibrous cap depleted of smooth muscle cells and collagen, 3) an outward (positive) remodeling, 4) inflammatory cell infiltration of fibrous cap and adventitia (mostly monocyte- macrophages, activated T cells and mast cells), and 5) increased neovascularization. The terms vulnerable, unstable or ‘high-risk’ are now widely used to describe plaques that exhibit such features, irrespective of whether rupture of the fibrous cap is present [3].
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Toutouzas Konstantinos, Synetos Andreas, Nikolaou Charalampia, Tsiamis Eleutherios, Tousoulis Dimitris and Stefanadis Christodoulos, Matrix Metalloproteinases and Vulnerable Atheromatous Plaque, Current Topics in Medicinal Chemistry 2012; 12 (10) . https://dx.doi.org/10.2174/1568026611208011166
DOI https://dx.doi.org/10.2174/1568026611208011166 |
Print ISSN 1568-0266 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4294 |
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