Armillariella mellea shows anti-inflammatory activity by inhibiting the expression of NO, iNOS, Cox-2 and cytokines in THP-1 cells

doi:10.1142/S0192415X07005028

CNU IR > Pharmacy and Science > Dept. of Health and Nutrition (including master's program) > Periodical Articles > Item 310902800/22224

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题名:	Armillariella mellea shows anti-inflammatory activity by inhibiting the expression of NO, iNOS, Cox-2 and cytokines in THP-1 cells
作者:	Shu-Jing Wu Jenn-Yi Tsai Min-Nan Lai Lean-Teik Ng
贡献者:	營養與保健科技研究所
关键词:	Armillariella mellea Anti-inflammatory iNOS COX-1 COX-2 Cytokines
日期:	2007
上传时间:	2010-01-15 11:13:29 (UTC+8)
摘要:	Armillariella mellea (AM), also known as Mi-Huan-Ku, a popular medicinal fungus used in the traditional Chinese medicine for treating headache, neurasthenia and insomnia. In the present study, our aim was to determine the effects of aqueous (AAM) and ethanol (EAM) extracts of A. mellea on lipopolysaccharide (LPS)-induced inflammatory response by measuring the inducible nitric oxide synthase (iNOS), cyclooxygenase-1 and -2 (COX-1 and COX-2) protein expression, cytokines (TNF-α, IL-4 and IL-8) formation, nitric oxide (NO) release and prostaglandin (PGE2) production in human monocytic (THP-1) cells. At concentration of 100 μg/ml, EAM, but not AAM, effectively protected against LPS-induced cell death in THP-1 cells. At concentrations of 10~100 μg/ml, EAM showed a potent anti-inflammatory activity as demonstrated by a dose-dependent inhibition of LPS (1 μg/ml)-induced release of NO and PGE2, and significantly decreased the transcription of proinflammatory cytokines. EAM at 100 μg/ml significantly blocked the LPS induction of iNOS and COX-2 expression, but not COX-1. Therefore, the protective effect of EAM against LPS-induced inflammatory mediators release could explain, at least in part, its effectiveness in alleviating certain inflammatory related diseases.
關聯:	American Journal of Chinese Medicine 35(3)： p.507-516
显示于类别:	[Dept. of Health and Nutrition (including master's program)] Periodical Articles

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