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Open AccessArticle

Inhibitory Effects of Viscum coloratum Extract on IgE/Antigen-Activated Mast Cells and Mast Cell-Derived Inflammatory Mediator-Activated Chondrocytes

Korean Medicine (KM)-Application Center, Korea Institute of Oriental Medicine (KIOM), 70 Cheomdan-ro, Dong-gu, Daegu 41062, Korea
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Author to whom correspondence should be addressed.
Academic Editors: Dong-Kug Choi and Palanivel Ganesan
Molecules 2017, 22(1), 37; https://doi.org/10.3390/molecules22010037
Received: 17 November 2016 / Revised: 15 December 2016 / Accepted: 20 December 2016 / Published: 28 December 2016
(This article belongs to the Special Issue Natural Products and Chronic Diseases)
The accumulation and infiltration of mast cells are found in osteoarthritic lesions in humans and rodents. Nonetheless, the roles of mast cells in osteoarthritis are almost unknown. Although Viscum coloratum has various beneficial actions, its effect on allergic and osteoarthritic responses is unknown. In this study, we established an in vitro model of mast cell-mediated osteoarthritis and investigated the effect of the ethanol extract of Viscum coloratum (VEE) on IgE/antigen (IgE/Ag)-activated mast cells and mast cell-derived inflammatory mediator (MDIM)-stimulated chondrocytes. The anti-allergic effect of VEE was evaluated by degranulation, inflammatory mediators, and the FcεRI signaling cascade in IgE/Ag-activated RBL-2H3 cells. The anti-osteoarthritic action of VEE was evaluated by cell migration, and the expression, secretion, and activity of MMPs in MDIM-stimulated SW1353 cells. VEE significantly inhibited degranulation (IC50: 93.04 μg/mL), the production of IL-4 (IC50: 73.28 μg/mL), TNF-α (IC50: 50.59 μg/mL), PGD2 and LTC4, and activation of the FcεRI signaling cascade in IgE/Ag-activated RBL-2H3 cells. Moreover, VEE not only reduced cell migration but also inhibited the expression, secretion, and/or activity of MMP-1, MMP-3, or MMP-13 in MDIM-stimulated SW1353 cells. In conclusion, VEE possesses both anti-allergic and anti-osteoarthritic properties. Therefore, VEE could possibly be considered a new herbal drug for anti-allergic and anti-osteoarthritic therapy. Moreover, the in vitro model may be useful for the development of anti-osteoarthritic drugs. View Full-Text
Keywords: chondrocyte; mast cells; mast cell-derived inflammatory mediator; matrix metalloprotease; Viscum coloratum extract chondrocyte; mast cells; mast cell-derived inflammatory mediator; matrix metalloprotease; Viscum coloratum extract
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Yoo, J.-M.; Yang, J.-H.; Kim, Y.S.; Yang, H.J.; Cho, W.-K.; Ma, J.Y. Inhibitory Effects of Viscum coloratum Extract on IgE/Antigen-Activated Mast Cells and Mast Cell-Derived Inflammatory Mediator-Activated Chondrocytes. Molecules 2017, 22, 37.

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