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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/4454

    Title: Stimulation of smooth muscle cell proliferation by ox-LDL- and acetyl LDL-induced macrophage-derived foam cells.
    Authors: Shen CM;Mao SJT;Huang GS;Yang PC;Chu RM.
    Contributors: Department of Biotechnology
    Date: 2001-12
    Issue Date: 2009-11-26 09:43:15 (UTC+8)
    Publisher: Asia University
    Abstract: To test the hypothesis that LDL lacking of initial oxidation may also anticipate an essential role in the progression for atherosclerotic lesions, we studied the in vitro effect of foam cells induced by low density lipoprotein (LDL), oxidized (ox)-LDL or acetyl-LDL on smooth muscle cell (SMC) proliferation. Intraperitoneal macrophages collected from ICR mice were incubated with buffered saline LDL, ox-LDL or acetyl-LDL to induce foam cell formation. Porcine aortas with atherosclerotic lesions were collected from 5 pigs fed high cholesterol diets. The results indicate that foam cells induced by ox-LDL and acetyl-LDL, but not by LDL, promoted SMC proliferation. SMC proliferation was also increased by ruptured, ox-LDL- and acetyl-LDL- induced foam cells. Immunohistochemically, epitopes of the LDL, ox-LDL, and malondialdelyde (MDA)-LDL were present in atherosclerotic lesions, but the acetyl epitope was not. We suggest that foam cells, whether induced by the oxidized or acetyl or acetyl (unoxidized) form, play an essential role in the pathogenesis of atherosclerosis by stimulating SMC proliferation.
    Relation: Life Science 70(4):443-52
    Appears in Collections:[生物科技學系] 期刊論文

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