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  • Title: Ginsenoside Rg3 inhibits tumor necrosis factor-alpha-induced expression of cell adhesion molecules in human endothelial cells.
    Author: Hien TT, Kim ND, Kim HS, Kang KW.
    Journal: Pharmazie; 2010 Sep; 65(9):699-701. PubMed ID: 21038849.
    Abstract:
    Ginsenoside Rg3 (Rg3), one of the most effective ginseng saponins, has anti-inflammatory and anti-cancer effects. This study examined the effects of Rg3 on cytokine-induced expression of adhesion molecules, which is a key early event in atherogenesis. Rg3 treatment inhibited tumor necrosis factor-alpha (TNF-alpha)-induced protein and mRNA expression of two cell adhesion molecules, vascular cell adhesion molecule-1 (VCAM-1) and intercellular cell adhesion molecule-1 (ICAM-1) in ECV 304 human endothelial cells. In addition, expression of two pro-inflammatory cytokines, TNF-alpha and interleukin-1beta (IL-1beta), was suppressed by Rg3. Reporter gene analyses revealed that minimal reporter activities of nuclear factor-kappaB (NF-kappaB) and activator protein-1 (AP-1) were blocked by Rg3 in a concentration-dependent manner. Taken together, these results indicate that Rg3 may have anti-inflammatory and anti-atherosclerotic activities in the vasculature, which is mediated partly by down-regulation of the expression of cell adhesion molecules and proinflammatory cytokines in endothelial cells.
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