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Ginsenoside F2 induces the release of mediators associated with Anaphylactoid reactions.

Fitoterapia 2017 September
Recently, the allergenicity of ginsenosides, as main active components in ginseng, has attracted much attention. Ginsenoside Rb1 and Rd. have been reported to induce anaphylactoid reaction. In this study, the allergenicity of a series of 20(S)-protopanaxadiol (PPD) type ginsenosides, including Rb1, Rd., F2, Compound K and 20(S)-PPD, was evaluated in rat basophilic leukemia 2H3 (RBL2H3) cells. As a result, 20(S)-PPD had no effect on the mast cell degranulation, but other components showed anaphylactoid potential to different extent. The allergenicity was stronger and stronger according to the order "Rb1, Rd., F2, Compound K". Then, F2 was further verified in RBL-2H3 cells, mouse peritoneal mast cells (MPMCs), Laboratory of Allergic Disease 2 (LAD2) human mast cells in vitro and mice in vivo. Results showed that F2 could induce a significant increase of histamine release and translocation of phosphatidylserine in RBL-2H3 cells. F2 also increased β-hexosaminidase release and the intracellular Ca(2+) concentration of MPMCs and LAD2 cells. In addition, histamine level in serum of mice was elevated dose-dependently. Our study revealed the potential structure-allergenicity relationship of 20(S)-PPD type ginsenosides and first verified the allergenicity of ginsenoside F2. This study could guide the establishment of quality standards for safe application of ginsenoside-containing preparations.

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