A formulated red ginseng extract upregulates CHOP and increases TRAIL-mediated cytotoxicity in human hepatocellular carcinoma cells

  • Authors:
    • Yun-Sun Lee
    • Da-Gyum Lee
    • Ju-Yeon Lee
    • Tae Ryong Kim
    • Soon-Sun Hong
    • Sung Won Kwon
    • You-Sun Kim
  • View Affiliations

  • Published online on: May 27, 2013     https://doi.org/10.3892/ijo.2013.1964
  • Pages: 591-599
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Abstract

Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a promising anticancer agent because its cytotoxicity is selective for tumor cells. Despite promising outcomes in clinical trials using this ligand, sustained clinical responses have been impeded because cancer cells acquire resistance to TRAIL-based therapies. Ginseng, a well-known food product consumed globally, has been reported to reduce fatigue and possess antioxidant and antitumor activities. We explored the sensitizing influence of a formulated red ginseng extract (RGE) on TRAIL-derived cell death in hepatocellular carcinoma (HCC) cell lines and the underlying molecular mechanisms responsible for TRAIL sensitization. We found that the RGE promoted TRAIL-derived apoptosis in HepG2, Huh-7 and Hep3B cell lines. We also found that death receptor 5 expression was induced by the RGE and mediated by C/EBP homologous protein (CHOP). shRNA-induced downregulation of CHOP expression effectively suppressed cell death induced by combined treatment with the RGE and TRAIL in the HepG2 cell line, indicating that RGE-related upregulation of the CHOP protein plays an important role in sensitizing TRAIL-derived apoptosis. In summary, we showed that the RGE sensitized human HCC cell lines to TRAIL-derived cell death and could be utilized as a dietary supplement in combination with cancer treatment.
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August 2013
Volume 43 Issue 2

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Lee Y, Lee D, Lee J, Kim TR, Hong S, Kwon SW and Kim Y: A formulated red ginseng extract upregulates CHOP and increases TRAIL-mediated cytotoxicity in human hepatocellular carcinoma cells. Int J Oncol 43: 591-599, 2013
APA
Lee, Y., Lee, D., Lee, J., Kim, T.R., Hong, S., Kwon, S.W., & Kim, Y. (2013). A formulated red ginseng extract upregulates CHOP and increases TRAIL-mediated cytotoxicity in human hepatocellular carcinoma cells. International Journal of Oncology, 43, 591-599. https://doi.org/10.3892/ijo.2013.1964
MLA
Lee, Y., Lee, D., Lee, J., Kim, T. R., Hong, S., Kwon, S. W., Kim, Y."A formulated red ginseng extract upregulates CHOP and increases TRAIL-mediated cytotoxicity in human hepatocellular carcinoma cells". International Journal of Oncology 43.2 (2013): 591-599.
Chicago
Lee, Y., Lee, D., Lee, J., Kim, T. R., Hong, S., Kwon, S. W., Kim, Y."A formulated red ginseng extract upregulates CHOP and increases TRAIL-mediated cytotoxicity in human hepatocellular carcinoma cells". International Journal of Oncology 43, no. 2 (2013): 591-599. https://doi.org/10.3892/ijo.2013.1964