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Abstract Title:

Protective effects of ginsenoside F2 on 12-O-tetradecanoylphorbol-13-acetate-induced skin inflammation in mice.

Abstract Source:

Biochem Biophys Res Commun. 2016 Sep 30 ;478(4):1713-9. Epub 2016 Sep 3. PMID: 27596969

Abstract Author(s):

Seol-Hee Park, Wonhyo Seo, Hyuk Soo Eun, So Yeon Kim, Eunjung Jo, Myung-Ho Kim, Won-Mook Choi, Jun-Hee Lee, Young-Ri Shim, Chang-Hao Cui, Sun Chang Kim, Cheol Yong Hwang, Won-Il Jeong

Article Affiliation:

Seol-Hee Park

Abstract:

Topical use of ginsenosides, the major bioactive substances in Panax ginseng, has been used for the treatment of irritated skin complaints. However, the protective mechanisms of ginsenosides remain unclear. In the present study, we investigated the anti-inflammatory role of ginsenoside F2 (GF2) on the skin inflammation. To induce irritant dermatitis, 12-O-tetradecanoylphorbol-13-acetate (TPA) was applied on the surface of the mouse ears with or without treatments of GF2 and dexamethasone for 24 h. Protective effects of GF2 on edema and inflammation were assessed by measuring ear thickness, weights of skin punch, and inflammatory responses. In gross findings, treatments with GF2 significantly decreased skin thickness and weight compared to those of TPA-treated groups, which was comparablewith the protective effects of dexamethasone. In addition, expression of inflammatory mediators was remarkably reduced in GF2-treated ears compared to that of vehicle-treated ears of mice. Interestingly, immunohistochemistry and flow cytometry analyses revealed that TPA treatment significantly increased infiltration of interleukin-17 (IL-17) producing dermal γδ T cells, while frequencies of γδ T cells was decreased by GF2 treatment, subsequently ameliorating inflammation in skin. Concomitantly, TPA-mediated skin inflammation was significantly ameliorated in IL-17A knock out mice. Furthermore, GF2 treatment inhibited infiltration and generation of reactive oxygen species (ROS) of neutrophils in damaged ears compared with vehicle-treated mice. These results clearly suggest that GF2 treatment ameliorates TPA-induced dermal inflammation by inhibiting production of IL-17 and ROS in γδT cells and neutrophils, respectively. Therefore, as a natural compound, application of GF2 may be a novel therapeutic approach for treating skin inflammation.

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Sayer Ji
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