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November 2012 Volume 28 Issue 5

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Article

Dioscin sensitizes cells to TRAIL-induced apoptosis through downregulation of c-FLIP and Bcl-2

  • Authors:
    • Yong-Sik Kim
    • Eun-Ae Kim
    • Kyu-Gun Park
    • Sung-Jun Lee
    • Mi-Sun Kim
    • Ho-Yong Sohn
    • Tae-Jin Lee
  • View Affiliations / Copyright

    Affiliations: Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Cheonan, Chungnam 330-090, Republic of Korea, Department of Anatomy, College of Medicine, Yeungnam University, 317-1 Daemyung-Dong Nam-Gu, Daegu 705‑717, Republic of Korea, Department of Food Science and Nutrition, Andong National University, Andong 760-749, Republic of Korea
  • Pages: 1910-1916
    |
    Published online on: August 9, 2012
       https://doi.org/10.3892/or.2012.1962
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Abstract

Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has received attention as a potential anticancer drug, because it induces apoptosis in a wide variety of cancer cells but not in most normal human cell types. Here, we showed that co-treatment with subtoxic doses of dioscin and TRAIL-induced apoptosis in Caki human renal cancer cells. Treatment of Caki cells with dioscin downregulated c-FLIPL and Bcl-2 proteins in a dose-dependent manner. Dioscin-induced decrease in c-FLIPL protein levels may be caused by the increased protein instability. We also found that dioscin induced downregulation of Bcl-2 at the transcriptional level. Pretreatment with NAC slightly inhibited the expression levels of c-FLIPL downregulated by the treatment of dioscin, suggesting that dioscin is partially dependent on the generation of ROS for downregulation of c-FLIPL. Taken together, the present study demonstrates that dioscin enhances TRAIL-induced apoptosis in human renal cancer cells by downregulation of c-FLIPL and Bcl-2.
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Copy and paste a formatted citation
Spandidos Publications style
Kim Y, Kim E, Park K, Lee S, Kim M, Sohn H and Lee T: Dioscin sensitizes cells to TRAIL-induced apoptosis through downregulation of c-FLIP and Bcl-2. Oncol Rep 28: 1910-1916, 2012.
APA
Kim, Y., Kim, E., Park, K., Lee, S., Kim, M., Sohn, H., & Lee, T. (2012). Dioscin sensitizes cells to TRAIL-induced apoptosis through downregulation of c-FLIP and Bcl-2. Oncology Reports, 28, 1910-1916. https://doi.org/10.3892/or.2012.1962
MLA
Kim, Y., Kim, E., Park, K., Lee, S., Kim, M., Sohn, H., Lee, T."Dioscin sensitizes cells to TRAIL-induced apoptosis through downregulation of c-FLIP and Bcl-2". Oncology Reports 28.5 (2012): 1910-1916.
Chicago
Kim, Y., Kim, E., Park, K., Lee, S., Kim, M., Sohn, H., Lee, T."Dioscin sensitizes cells to TRAIL-induced apoptosis through downregulation of c-FLIP and Bcl-2". Oncology Reports 28, no. 5 (2012): 1910-1916. https://doi.org/10.3892/or.2012.1962
Copy and paste a formatted citation
x
Spandidos Publications style
Kim Y, Kim E, Park K, Lee S, Kim M, Sohn H and Lee T: Dioscin sensitizes cells to TRAIL-induced apoptosis through downregulation of c-FLIP and Bcl-2. Oncol Rep 28: 1910-1916, 2012.
APA
Kim, Y., Kim, E., Park, K., Lee, S., Kim, M., Sohn, H., & Lee, T. (2012). Dioscin sensitizes cells to TRAIL-induced apoptosis through downregulation of c-FLIP and Bcl-2. Oncology Reports, 28, 1910-1916. https://doi.org/10.3892/or.2012.1962
MLA
Kim, Y., Kim, E., Park, K., Lee, S., Kim, M., Sohn, H., Lee, T."Dioscin sensitizes cells to TRAIL-induced apoptosis through downregulation of c-FLIP and Bcl-2". Oncology Reports 28.5 (2012): 1910-1916.
Chicago
Kim, Y., Kim, E., Park, K., Lee, S., Kim, M., Sohn, H., Lee, T."Dioscin sensitizes cells to TRAIL-induced apoptosis through downregulation of c-FLIP and Bcl-2". Oncology Reports 28, no. 5 (2012): 1910-1916. https://doi.org/10.3892/or.2012.1962
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