ASIA unversity:Item 310904400/101335
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    题名: Attenuation of the LPS-induced, ERK-mediated upregulation of fibrosis-related factors FGF-2, uPA, MMP-2, and MMP-9 by Carthamus tinctorius L in cardiomyoblasts.
    作者: 韓建國(Chien-Kuo Han);Yun-Chen Tien;Dennis Jine-Yuan Hsieh;Tsung-Jung Ho;Chao-Hung Lai;Yu-Lan Yeh;Cecilia Hsuan Day;Chia-Yao Shen;Hsi-Hsien Hsu;Jing-Ying Lin;Chih-Yang Huang
    贡献者: 保健營養生技學系
    日期: 2016-04
    上传时间: 2016-09-20 11:37:10 (UTC+8)
    摘要: Severe and potentially fatal hypotension and cardiac contractile dysfunction are common symptoms in patients with sepsis. LPS was previously found to dramatically upregulate expression of fibrosis-related factors FGF-2, uPA, MMP-2, and MMP-9 in primary cardiac fibroblasts. MMPs are capable of denaturing and degrading fibrillar collagens and other components of the extracellular matrix (ECM). Studies have shown that dysregulation of expression of MMPs is associated with development of myocardial extracellular matrix remodeling and cardiac fibrosis, which contribute to progression of heart failure. In this study, H9c2 cells and cardiac fibroblasts were divided into five treatment groups: control, LPS (1 μg/mL) and three concentrations of FCEtOH (Carthami Flos ethanolic extract) (31.25, 62.5, and 125 μg/mL). Phosphorylation of ERK-1/2 was observed to be rapidly induced upon treatment with LPS. In contrast, it was significantly suppressed by the administration of FCEtOH (125 μg/mL). Effects of FCEtOH on LPS-induced MMP-2 and MMP-9 expression in H9c2 cells occurred directly through ERK1/2 were determined. H9c2 cells were therefore pretreated with EGF-R to activate ERK pathway. Both protein levels of MMP-2 and MMP-9 and immunefluorescent signals of MMP-9 were significantly enhanced by EGFR. In contrast, MMP-2 and MMP-9 were significantly reduced after FCEtOH administration. Based on these findings, the authors concluded that FCEtOH elicits a protective effect against LPS-induced cardio-fibrosis through the ERK1/2 pathway. Carthamus tinctorius L may potentially serve as a cardio-protective agent against LPS- induced cardiac fibrosis. © 2016 Wiley Periodicals, Inc. Environ Toxicol, 2016.
    關聯: Environmental Toxicology
    显示于类别:[食品營養與保健生技學系] 期刊論文

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