Open Access

Guggulsterone inhibits human cholangiocarcinoma Sk-ChA-1 and Mz-ChA-1 cell growth by inducing caspase-dependent apoptosis and downregulation of survivin and Bcl-2 expression

  • Authors:
    • Fei Zhong
    • Jing Yang
    • Zhu-Ting Tong
    • Liu-Liu Chen
    • Lu-Lu Fan
    • Fang Wang
    • Xia-Li Zha
    • Jun Li
  • View Affiliations

  • Published online on: June 19, 2015     https://doi.org/10.3892/ol.2015.3391
  • Pages: 1416-1422
  • Copyright: © Zhong et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Guggulsterone has recently been reported to demonstrate anti-tumor effects in a variety of cancers. The present study aims to investigate the biological roles and underlying mechanism of the action of guggulsterone in cholangiocarcinoma. The immortalized human cholangiocarcinoma Sk‑ChA‑1 and Mz‑ChA‑1 cell lines were treated with various concentrations of the trans isomer of guggulsterone, Z‑guggulsterone. Cellular proliferation was determined using the XTT assay. The apoptotic status of cholangiocarcinoma cells was assessed by Hoechst 33258 staining, DNA fragmentation assay and flow cytometry. Specific caspase inhibitor was used to explore the role of caspase in guggulsterone‑induced apoptosis. A colorimetric assay was performed to measure the alterations of the activities of caspase‑3, ‑8 and ‑9. Western blot analysis was used to detect the protein expression of survivin, B‑cell lymphoma 2 (Bcl‑2), Bcl‑2‑associated X protein and cleaved poly (adenosine diphosphate‑ribose) polymerase (PARP). As revealed by the present data, guggulsterone significantly inhibited the growth of the two human cholangiocarcinoma cell lines by inducing cellular apoptosis. In addition, guggulsterone‑induced apoptosis of cholangiocarcinoma cells was demonstrated to be partially inhibited by the caspase inhibitors z‑VAD‑fmk, z‑LEHD‑fmk and z‑IETD‑fmk, accompanied by the activation of caspases‑3, ‑8 and ‑9, accumulation of cleaved PARP and decreased expression of survivin and Bcl‑2. In conclusion, the present study demonstrated that guggulsterone was able to suppress the proliferation of cholangiocarcinoma by inducing caspase‑dependent apoptosis and downregulating survivin and Bcl-2.
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September-2015
Volume 10 Issue 3

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Zhong F, Yang J, Tong Z, Chen L, Fan L, Wang F, Zha X and Li J: Guggulsterone inhibits human cholangiocarcinoma Sk-ChA-1 and Mz-ChA-1 cell growth by inducing caspase-dependent apoptosis and downregulation of survivin and Bcl-2 expression. Oncol Lett 10: 1416-1422, 2015
APA
Zhong, F., Yang, J., Tong, Z., Chen, L., Fan, L., Wang, F. ... Li, J. (2015). Guggulsterone inhibits human cholangiocarcinoma Sk-ChA-1 and Mz-ChA-1 cell growth by inducing caspase-dependent apoptosis and downregulation of survivin and Bcl-2 expression. Oncology Letters, 10, 1416-1422. https://doi.org/10.3892/ol.2015.3391
MLA
Zhong, F., Yang, J., Tong, Z., Chen, L., Fan, L., Wang, F., Zha, X., Li, J."Guggulsterone inhibits human cholangiocarcinoma Sk-ChA-1 and Mz-ChA-1 cell growth by inducing caspase-dependent apoptosis and downregulation of survivin and Bcl-2 expression". Oncology Letters 10.3 (2015): 1416-1422.
Chicago
Zhong, F., Yang, J., Tong, Z., Chen, L., Fan, L., Wang, F., Zha, X., Li, J."Guggulsterone inhibits human cholangiocarcinoma Sk-ChA-1 and Mz-ChA-1 cell growth by inducing caspase-dependent apoptosis and downregulation of survivin and Bcl-2 expression". Oncology Letters 10, no. 3 (2015): 1416-1422. https://doi.org/10.3892/ol.2015.3391