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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/27857

    標題: Immunomodulatory Activities of Medicinal Mushroom Grifola frondosa Extract and Its Bioactive Constituent
    作者: Wu, Shu-Jing
    Lu, Tzy-Ming
    Lai, Min-Nan
    Ng, Lean-Teik
    貢獻者: 保健營養系
    關鍵字: Grifola Frondosa
    Medicinal Mushroom
    Ergosterol Peroxide
    Immunomodulatory Activity
    Pro-Inflammatory Mediators
    Thp-1 Cells
    日期: 2013
    上傳時間: 2014-05-26 10:46:30 (UTC+8)
    出版者: World Scientific Publ Co Pte Ltd
    摘要: Grifola frondosa (GF), a high value medicinal mushroom in China and Japan, is popularly consumed as traditional medicines and health foods, especially for enhancing immune functions. In this study, our aim was to examine the immunomodulatory activities of GF and its bioactive compound ergosterol peroxide (EPO) in lipopolysaccharide (LPS)-induced human monocytic (THP-1) cells. At low concentrations, EPO but not other extracts showed a full protection against LPS-induced cell toxicity. EPO significantly blocked MyD88 and VCAM-1 expression, and cytokine (IL-1 beta, IL-6 and TNF-alpha) production in LPS-stimulated cells. It also effectively inhibited NF-kappa B activation, which was further confirmed with siRNA treatment. These results conclude that EPO may play an important role in the immunomodulatory activity of GF through inhibiting the production of pro-inflammatory mediators and activation of NF-kappa B signaling pathway.
    關聯: American Journal of Chinese Medicine, v.41 n.1, pp.131-144
    Appears in Collections:[保健營養系(所) ] 期刊論文

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