Antrodia salmonea inhibits TNF-a-induced angiogenesis and atherogenesis in human endothelial cells through the down-regulation of NF-kB and up-regulation of Nrf2 signaling pathways.

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题名:	Antrodia salmonea inhibits TNF-a-induced angiogenesis and atherogenesis in human endothelial cells through the down-regulation of NF-kB and up-regulation of Nrf2 signaling pathways.
作者:	Hsin-Ling Yang;Hebron C. Chang;Shu-Wei Lin;K.J. Senthil Kumar;Chun-Huei Liao;Hui-Min Wang;Kai-Yuan Lin;You-Cheng Hseu
贡献者:	生物科技學系
日期:	2014-01
上传时间:	2014-06-05 04:06:44 (UTC+0)
摘要:	Ethnopharmacological relevance Antrodia salmonea (AS) is known as a traditional Chinese medicine, but very few biological activities have been reported. Materials and methods The present study was aimed to investigate the anti-angiogenic and anti-atherosclerotic potential of the fermented culture broth of AS against tumor necrosis factor-α (TNF-α)-stimulated human endothelial (EA.hy 926) cells. Results The non-cytotoxic concentrations of AS significantly inhibited TNF-α-induced migration/invasion and capillary-like tube formation in EA.hy 926 cells. Furthermore, AS suppressed TNF-α-induced activity and expression of matrix metalloproteinase-9 (MMP-9), and cell-surface expression of intercellular adhesion molecule-1 (ICAM-1), which was associated with abridged adhesion of U937 leukocytes to endothelial cells. Moreover, AS significantly down-regulated TNF-α-induced nuclear translocation and transcriptional activation of nuclear factor κB (NF-κB) followed by suppression of I-κB degradation and phosphorylation of I-κB kinase-α (IKKα). Notably, the protective effect of AS was directly correlated with the increased expression of hemeoxygenase-1 (HO-1) and γ-glutamylcysteine synthetase (γ-GCLC), which was reasoned by nuclear translocation and transactivation of NF-E2 related factor-2 (Nrf2)/antioxidant response element (ARE). Furthermore, HO-1 knockdown by HO-1-specific shRNA diminished the protective effects of AS on TNF-α-stimulated invasion, tube formation, and U937 adhesion in EA.hy 926 cells.
關聯:	JOURNAL OF ETHNOPHARMACOLOGY,151(1),394–406.
显示于类别:	[國際企業學系] 期刊論文

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