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Article

Arsenic trioxide induces the apoptosis of human breast cancer MCF-7 cells through activation of caspase-3 and inhibition of HERG channels

  • Authors:
    • Ying Wang
    • Yong Zhang
    • Lei Yang
    • Benzhi Cai
    • Jianping Li
    • You Zhou
    • Li Yin
    • Lili Yang
    • Baofeng Yang
    • Yanjie Lu
  • View Affiliations / Copyright

    Affiliations: Department of Pharmacology, State-Province Key Laboratories of Biomedicine and Pharmaceutics, Heilongjiang 150081, P.R. China
  • Pages: 481-486
    |
    Published online on: March 8, 2011
       https://doi.org/10.3892/etm.2011.224
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Abstract

Arsenic trioxide (As2O3) has been widely used to treat patients with acute promyelocytic leukemia and has also been shown to exhibit therapeutic effects on various types of solid tumors, including gastric cancer and lung carcinoma. Breast cancer is a type of solid tumor whose incidence has been increasing for many years. The present study was designed to investigate the effects of As2O3 on the human breast cancer cell line MCF-7, and to explore its potential mechanisms. The MTT assay demonstrated that As2O3 decreased the cellular viability of MCF-7 cells in a concentration-dependent manner. Morphological observation, the TUNEL assay and flow cytometric analysis revealed that apoptosis was involved in the process. An assay for caspase-3 activity suggested that the apoptosis was mediated through caspase-3 activation. Further investigation indicated that protein levels of the human ether‑a-go-go-related gene (HERG) were markedly downregulated by As2O3. Taken together, the results indicate that arsenic trioxide induces the apoptosis of human breast cancer MCF-7 cells at least in part through the activation of caspase-3 and the decrease in HERG expression.
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Copy and paste a formatted citation
Spandidos Publications style
Wang Y, Zhang Y, Yang L, Cai B, Li J, Zhou Y, Yin L, Yang L, Yang B, Lu Y, Lu Y, et al: Arsenic trioxide induces the apoptosis of human breast cancer MCF-7 cells through activation of caspase-3 and inhibition of HERG channels. Exp Ther Med 2: 481-486, 2011.
APA
Wang, Y., Zhang, Y., Yang, L., Cai, B., Li, J., Zhou, Y. ... Lu, Y. (2011). Arsenic trioxide induces the apoptosis of human breast cancer MCF-7 cells through activation of caspase-3 and inhibition of HERG channels. Experimental and Therapeutic Medicine, 2, 481-486. https://doi.org/10.3892/etm.2011.224
MLA
Wang, Y., Zhang, Y., Yang, L., Cai, B., Li, J., Zhou, Y., Yin, L., Yang, L., Yang, B., Lu, Y."Arsenic trioxide induces the apoptosis of human breast cancer MCF-7 cells through activation of caspase-3 and inhibition of HERG channels". Experimental and Therapeutic Medicine 2.3 (2011): 481-486.
Chicago
Wang, Y., Zhang, Y., Yang, L., Cai, B., Li, J., Zhou, Y., Yin, L., Yang, L., Yang, B., Lu, Y."Arsenic trioxide induces the apoptosis of human breast cancer MCF-7 cells through activation of caspase-3 and inhibition of HERG channels". Experimental and Therapeutic Medicine 2, no. 3 (2011): 481-486. https://doi.org/10.3892/etm.2011.224
Copy and paste a formatted citation
x
Spandidos Publications style
Wang Y, Zhang Y, Yang L, Cai B, Li J, Zhou Y, Yin L, Yang L, Yang B, Lu Y, Lu Y, et al: Arsenic trioxide induces the apoptosis of human breast cancer MCF-7 cells through activation of caspase-3 and inhibition of HERG channels. Exp Ther Med 2: 481-486, 2011.
APA
Wang, Y., Zhang, Y., Yang, L., Cai, B., Li, J., Zhou, Y. ... Lu, Y. (2011). Arsenic trioxide induces the apoptosis of human breast cancer MCF-7 cells through activation of caspase-3 and inhibition of HERG channels. Experimental and Therapeutic Medicine, 2, 481-486. https://doi.org/10.3892/etm.2011.224
MLA
Wang, Y., Zhang, Y., Yang, L., Cai, B., Li, J., Zhou, Y., Yin, L., Yang, L., Yang, B., Lu, Y."Arsenic trioxide induces the apoptosis of human breast cancer MCF-7 cells through activation of caspase-3 and inhibition of HERG channels". Experimental and Therapeutic Medicine 2.3 (2011): 481-486.
Chicago
Wang, Y., Zhang, Y., Yang, L., Cai, B., Li, J., Zhou, Y., Yin, L., Yang, L., Yang, B., Lu, Y."Arsenic trioxide induces the apoptosis of human breast cancer MCF-7 cells through activation of caspase-3 and inhibition of HERG channels". Experimental and Therapeutic Medicine 2, no. 3 (2011): 481-486. https://doi.org/10.3892/etm.2011.224
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