Open Access

Synergistic cytotoxic effects of a combined treatment of a Pinellia pedatisecta lipid-soluble extract and cisplatin on human cervical carcinoma in vivo

  • Authors:
    • Mingxing Zhang
    • Yi Yu
    • Hongwei Zhang
    • Haixia Huang
    • Qingqing Cai
    • Yu Kang
    • Guiling Li
    • Congjian Xu
  • View Affiliations

  • Published online on: April 25, 2017     https://doi.org/10.3892/ol.2017.6091
  • Pages: 4748-4754
  • Copyright: © Zhang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Herbal medicines are known to have numerous benefits, including lower toxicity and fewer side effects than traditional chemotherapeutic drugs. In traditional Chinese medicine, the rhizome of Pinellia pedatisecta (PE) Schott has long been used to treat cancer, undiagnosed swelling and erythema toxicum. However, its medical benefits lack support from scientific evidence. A novel lipid‑soluble extract from PE has been previously verified to enhance the cytotoxicity of cis‑dichlorodiammineplatinum‑II (CDDP) against human cervical cancer cells in vitro. The present study evaluated the synergistic cytotoxic effects of PE and CDDP against human cervical cancer. Combination therapy of PE with CDDP exhibited synergistic cytotoxicity towards CaSki cell growth in mouse xenograft tumors. PE exhibited a cytotoxic effect on tumor size and weight, although the inhibitory ratio of tumor weight was only 26.3% in the PE‑treated group. However, when mice were co‑treated with PE and CDDP, the inhibitory ratio was higher than that of mice treated with CDDP alone (50.8 vs. 68.4%, respectively). The potential synergistic mechanism was likely via inhibiting the signaling E6/p53 pathway, restoring p53 function and inducing downstream tumor suppressor chain effects on apoptosis. Western blot analysis and immunohistochemistry indicated thatE6protein expression was significantly decreased upon treatment with combined PE and CDDP. The expression of p53 was increased in the combined PE and CDDP treatment group. Upregulation of p53‑dependent apoptosis‑associated proteins, including Bcl‑2‑associated X protein and cleaved caspases‑9 and ‑3, was observed in the combined PE and CDDP treatment group. Our results present a molecular basis for the future application of the combination of PE and CDDP in the treatment of cervical cancer as a novel and pharmacologically safe chemotherapeutic strategy.
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June-2017
Volume 13 Issue 6

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

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Spandidos Publications style
Zhang M, Yu Y, Zhang H, Huang H, Cai Q, Kang Y, Li G and Xu C: Synergistic cytotoxic effects of a combined treatment of a Pinellia pedatisecta lipid-soluble extract and cisplatin on human cervical carcinoma in vivo. Oncol Lett 13: 4748-4754, 2017
APA
Zhang, M., Yu, Y., Zhang, H., Huang, H., Cai, Q., Kang, Y. ... Xu, C. (2017). Synergistic cytotoxic effects of a combined treatment of a Pinellia pedatisecta lipid-soluble extract and cisplatin on human cervical carcinoma in vivo. Oncology Letters, 13, 4748-4754. https://doi.org/10.3892/ol.2017.6091
MLA
Zhang, M., Yu, Y., Zhang, H., Huang, H., Cai, Q., Kang, Y., Li, G., Xu, C."Synergistic cytotoxic effects of a combined treatment of a Pinellia pedatisecta lipid-soluble extract and cisplatin on human cervical carcinoma in vivo". Oncology Letters 13.6 (2017): 4748-4754.
Chicago
Zhang, M., Yu, Y., Zhang, H., Huang, H., Cai, Q., Kang, Y., Li, G., Xu, C."Synergistic cytotoxic effects of a combined treatment of a Pinellia pedatisecta lipid-soluble extract and cisplatin on human cervical carcinoma in vivo". Oncology Letters 13, no. 6 (2017): 4748-4754. https://doi.org/10.3892/ol.2017.6091