4.6 Article

The anti-tumor efficacy of 20(S)-protopanaxadiol, an active metabolite of ginseng, according to fasting on hepatocellular carcinoma

期刊

JOURNAL OF GINSENG RESEARCH
卷 46, 期 1, 页码 167-174

出版社

KOREAN SOC GINSENG
DOI: 10.1016/j.jgr.2021.06.002

关键词

20(S)-protopanaxadiol; fasting-mimicking; intermittent fasting; hepatocellular carcinoma

资金

  1. Shandong Provincial Natural Science Foundation of China [ZR2018LH013]
  2. Key Research and Development Plan of Yantai City [2019XDHZ098]
  3. National Natural Science Foundation of China [81703846]

向作者/读者索取更多资源

This study found that fasting can enhance the anti-tumor effects of 20(S)-PPD on hepatocellular carcinoma, including inhibition of cell proliferation, promotion of apoptosis, suppression of cell migration and invasion, and induction of cell cycle arrest. In addition, intermittent fasting significantly enhanced the tumor growth inhibition of 20(S)-PPD without obvious side effects.
Background: 20(S)-protopanaxadiol (20(S)-PPD), one of the main active metabolites of ginseng, performs a broad spectrum of anti-tumor effects. Our aims are to search out new strategies to enhance anti-tumor effects of natural products, including 20(S)-PPD. In recent years, fasting has been shown to be multifunctional on tumor progression. Here, the effects of fasting combined with 20(S)-PPD on hepatocellular carcinoma growth, apoptosis, migration, invasion and cell cycle were explored. Methods: CCK-8 assay, trypan blue dye exclusion test, imagings photographed by HoloMonitorTM M4, transwell assay and flow cytometry assay were performed for functional analyses on cell proliferation, morphology, migration, invasion, apoptosis, necrosis and cell cycle. The expressions of genes on protein levels were tested by western blot. Tumor-bearing mice were used to evaluate the effects of intermittent fasting combined with 20(S)-PPD. Results: We firstly confirmed that fasting-mimicking increased the anti-proliferation effect of 20(S)-PPD in human HepG2 cells in vitro. In fasting-mimicking culturing medium, the apoptosis and necrosis induced by 20(S)-PPD increased and more cells were arrested at G0-G1 phase. Meanwhile, invasion and migration of cells were decreased by down-regulating the expressions of matrix metalloproteinase (MMP)-2 and MMP-9 in fasting-mimicking medium. Furthermore, the in vivo study confirmed that intermittent fasting enhanced the tumor growth inhibition of 20(S)-PPD in H22 tumor-bearing mice without obvious side effects. Conclusion: Fasting significantly sensitized HCC cells to 20(S)-PPD in vivo and in vitro. These data indicated that dietary restriction can be one of the potential strategies of chinese medicine or its active metabolites against hepatocellular carcinoma. (c) 2021 The Korean Society of Ginseng. Publishing services by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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