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Cisplatin regulates cell autophagy in endometrial cancer cells via the PI3K/AKT/mTOR signalling pathway

  • Authors:
    • Qiongyan Lin
    • Yifeng Wang
    • Dunjin Chen
    • Xiujie Sheng
    • Juan Liu
    • Hanzhen Xiong
  • View Affiliations / Copyright

    Affiliations: Department of Gynaecology and Obstetrics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, P.R. China, Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China
    Copyright: © Lin et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 3567-3571
    |
    Published online on: March 22, 2017
       https://doi.org/10.3892/ol.2017.5894
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Abstract

Endometrial cancer is the most common gynaecological malignancy encountered in developed countries and the second most common in the developing world. The five‑year survival rate of patients with endometrial cancer diagnosed at a late stage is <30%. Therefore, it is critical to develop a suitable chemotherapeutic regimen for late‑stage endometrial cancer. Cisplatin (CDDP) is a first‑line chemotherapeutic drug for endometrial cancer chemotherapy. The present study investigated the molecular mechanism underlying the effect of CDDP on endometrial cancer from the perspective of cell autophagy. Ishikawa cells were treated with 10, 20, 40 or 80 µg/ml CDDP for 12, 24, 48 and 72 h. The cells were then harvested and subjected to cell proliferation assays. Based on the results, 20 µg/ml CDDP was selected as the treatment used for 12 and 24 h for the assays. To detect the effect of CDDP on Ishikawa cell autophagy, autophagosome formation was observed using a transmission electron microscope, and the expression level of autophagy‑related gene microtubule-associated protein 1 light chain 3α, was examined using immunofluorescence microscopy. The results demonstrated that CDDP treatment promoted cell autophagy in Ishikawa cells. In addition, the total and phosphorylated protein levels of phosphoinositide 3‑kinase (PI3K) p85, protein kinase B (AKT) and mammalian target of rapamycin (mTOR), the key proteins of the PI3K/AKT/mTOR signalling pathway, were detected by western blot analysis. The results indicated that CDDP treatment inactivated the PI3K/AKT/mTOR signalling pathway. To further examine whether CDDP affects cell autophagy in Ishikawa cells via the PI3K/AKT/mTOR signalling pathway, the cells were co‑treated with a PI3K activator, insulin‑like growth factor-1 (IGF‑1). The results demonstrated that IGF‑1 co‑treatment reversed the effect of CDDP on cell autophagy in Ishikawa cells. In brief, the present study hypothesized that CDDP may regulate cell autophagy in the Ishikawa endometrial cancer cell line via the PI3K/AKT/mTOR signalling pathway.
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Copy and paste a formatted citation
Spandidos Publications style
Lin Q, Wang Y, Chen D, Sheng X, Liu J and Xiong H: Cisplatin regulates cell autophagy in endometrial cancer cells via the PI3K/AKT/mTOR signalling pathway. Oncol Lett 13: 3567-3571, 2017.
APA
Lin, Q., Wang, Y., Chen, D., Sheng, X., Liu, J., & Xiong, H. (2017). Cisplatin regulates cell autophagy in endometrial cancer cells via the PI3K/AKT/mTOR signalling pathway. Oncology Letters, 13, 3567-3571. https://doi.org/10.3892/ol.2017.5894
MLA
Lin, Q., Wang, Y., Chen, D., Sheng, X., Liu, J., Xiong, H."Cisplatin regulates cell autophagy in endometrial cancer cells via the PI3K/AKT/mTOR signalling pathway". Oncology Letters 13.5 (2017): 3567-3571.
Chicago
Lin, Q., Wang, Y., Chen, D., Sheng, X., Liu, J., Xiong, H."Cisplatin regulates cell autophagy in endometrial cancer cells via the PI3K/AKT/mTOR signalling pathway". Oncology Letters 13, no. 5 (2017): 3567-3571. https://doi.org/10.3892/ol.2017.5894
Copy and paste a formatted citation
x
Spandidos Publications style
Lin Q, Wang Y, Chen D, Sheng X, Liu J and Xiong H: Cisplatin regulates cell autophagy in endometrial cancer cells via the PI3K/AKT/mTOR signalling pathway. Oncol Lett 13: 3567-3571, 2017.
APA
Lin, Q., Wang, Y., Chen, D., Sheng, X., Liu, J., & Xiong, H. (2017). Cisplatin regulates cell autophagy in endometrial cancer cells via the PI3K/AKT/mTOR signalling pathway. Oncology Letters, 13, 3567-3571. https://doi.org/10.3892/ol.2017.5894
MLA
Lin, Q., Wang, Y., Chen, D., Sheng, X., Liu, J., Xiong, H."Cisplatin regulates cell autophagy in endometrial cancer cells via the PI3K/AKT/mTOR signalling pathway". Oncology Letters 13.5 (2017): 3567-3571.
Chicago
Lin, Q., Wang, Y., Chen, D., Sheng, X., Liu, J., Xiong, H."Cisplatin regulates cell autophagy in endometrial cancer cells via the PI3K/AKT/mTOR signalling pathway". Oncology Letters 13, no. 5 (2017): 3567-3571. https://doi.org/10.3892/ol.2017.5894
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