BIOLOGICAL AND BIOCHEMICAL-PROPERTIES OF FIBROBLAST GROWTH-FACTORS - IMPLICATIONS FOR THE PATHOGENESIS OF ATHEROSCLEROSIS
BIOLOGICAL AND BIOCHEMICAL-PROPERTIES OF FIBROBLAST GROWTH-FACTORS - IMPLICATIONS FOR THE PATHOGENESIS OF ATHEROSCLEROSIS
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DOI:
10.1161/01.atv.9.3.269
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发表时间:
1989-05-01
期刊:
影响因子:
--
通讯作者:
EDELMAN, ER
中科院分区:
文献类型:
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作者:
KLAGSBRUN, M;EDELMAN, ER
The term, atherosclerosis, as it was originally coined by Thoma in 1886, was devised to describe a degenerative process involving the progressive hardening of the blood vessel wall. 1 Today we have advanced to the understanding that the ultimate atherosclerotic lesion is a complex and heterogeneous arrangement of rapidly proliferating and migrating cells that produce and support an active connective tissue matrix. Two major forms of atherosclerotic lesions have been described: the fatty streak and the fibrous plaque. Classic fatty streaks are raised, narrow, yellowed lesions that extend in the direction of blood flow. They are nonobstructive and are likely, but yet unproven, precursors of more advanced lesions. The streaks are characterized by subendothelial collections of foam cells, smooth muscle cells (SMC), T-lymphocytes, and an extracellular matrix of lipid, collagen, elastin, and proteoglycan. 2-3-4 Monoclonal antibody studies have shown that foam cells are primarily monocyte-derived macrophages and occasionally SMC that have imbibed cholesterol and cholesterol esters. 5The fundamental and characteristic lesion of advanced atherosclerosis is the fibrous plaque. The histobgical composition of this lesion is variable but typically consists of a necrotic core of cellular debris, lipid, cholesterol, and calcium deposits overlain by SMC, macrophages, and T-lymphocytes, all of which are capped by a layer of fibrous tissue that is composed of SMC, leukocytes, and a dense connective tissue matrix. 8 Larger plaques are surrounded by a vasa vasorum that rises from the adventitia. 7 As disease advances, plaque may undergo further degeneration, including calcification, ulceration, and necrosis. Such complicated lesions are prone to intramural hemor-