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PTEN/AKT/mTOR signaling mediates anticancer effects of epigallocatechin‑3‑gallate in ovarian cancer

  • Authors:
    • Jianli Qin
    • Minglei Fu
    • Juan Wang
    • Fengxiang Huang
    • Haiping Liu
    • Mengjie Huangfu
    • Dan Yu
    • Haowei Liu
    • Xumei Li
    • Xiao Guan
    • Xu Chen
  • View Affiliations / Copyright

    Affiliations: College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China, Dispensary, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541004, P.R. China, Research Center for Science, Guilin Medical University, Guilin, Guangxi 541004, P.R. China, Science and Technology Department, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
    Copyright: © Qin et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1885-1896
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    Published online on: March 31, 2020
       https://doi.org/10.3892/or.2020.7571
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Abstract

Epigallocatechin‑3‑gallate (EGCG), a polyphenol present in green tea, exhibits anticancer effects in various types of cancer. A number of studies have focused on the effects of EGCG on lung cancer, but not ovarian cancer. Previous reports have implicated that EGCG suppressed ovarian cancer cell proliferation and induced apoptosis, but its potential anticancer mechanisms and signaling pathways remain unclear. Thus, it is necessary to determine the anti‑ovarian cancer effects of EGCG and explore the underlying mechanisms. In the present study, EGCG exerted stronger proliferation inhibition on SKOV3 cells compared with A549 cells and induced apoptosis in SKOV3 cells, as well as upregulated PTEN expression and downregulated the expression of phosphoinositide‑dependent kinase‑1 (PDK1), phosphor (p)‑AKT and p‑mTOR. These effects were reversed by the PTEN inhibitor VO‑Ohpic trihydrate. The results of the mouse xenograft experiment demonstrated that 50 mg/kg EGCG exhibited increased tumor growth inhibition compared with 5 mg/kg paclitaxel. In addition, PTEN expression was upregulated, whereas the expression levels of PDK1, p‑AKT and p‑mTOR were downregulated in the EGCG treatment group compared with those in untreated mice in vivo. In conclusion, the results of the present study provided a new underlying mechanism of the effect of EGCG on ovarian cancer and may lead to the development of EGCG as a candidate drug for ovarian cancer therapy.
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Qin J, Fu M, Wang J, Huang F, Liu H, Huangfu M, Yu D, Liu H, Li X, Guan X, Guan X, et al: PTEN/AKT/mTOR signaling mediates anticancer effects of epigallocatechin‑3‑gallate in ovarian cancer. Oncol Rep 43: 1885-1896, 2020.
APA
Qin, J., Fu, M., Wang, J., Huang, F., Liu, H., Huangfu, M. ... Chen, X. (2020). PTEN/AKT/mTOR signaling mediates anticancer effects of epigallocatechin‑3‑gallate in ovarian cancer. Oncology Reports, 43, 1885-1896. https://doi.org/10.3892/or.2020.7571
MLA
Qin, J., Fu, M., Wang, J., Huang, F., Liu, H., Huangfu, M., Yu, D., Liu, H., Li, X., Guan, X., Chen, X."PTEN/AKT/mTOR signaling mediates anticancer effects of epigallocatechin‑3‑gallate in ovarian cancer". Oncology Reports 43.6 (2020): 1885-1896.
Chicago
Qin, J., Fu, M., Wang, J., Huang, F., Liu, H., Huangfu, M., Yu, D., Liu, H., Li, X., Guan, X., Chen, X."PTEN/AKT/mTOR signaling mediates anticancer effects of epigallocatechin‑3‑gallate in ovarian cancer". Oncology Reports 43, no. 6 (2020): 1885-1896. https://doi.org/10.3892/or.2020.7571
Copy and paste a formatted citation
x
Spandidos Publications style
Qin J, Fu M, Wang J, Huang F, Liu H, Huangfu M, Yu D, Liu H, Li X, Guan X, Guan X, et al: PTEN/AKT/mTOR signaling mediates anticancer effects of epigallocatechin‑3‑gallate in ovarian cancer. Oncol Rep 43: 1885-1896, 2020.
APA
Qin, J., Fu, M., Wang, J., Huang, F., Liu, H., Huangfu, M. ... Chen, X. (2020). PTEN/AKT/mTOR signaling mediates anticancer effects of epigallocatechin‑3‑gallate in ovarian cancer. Oncology Reports, 43, 1885-1896. https://doi.org/10.3892/or.2020.7571
MLA
Qin, J., Fu, M., Wang, J., Huang, F., Liu, H., Huangfu, M., Yu, D., Liu, H., Li, X., Guan, X., Chen, X."PTEN/AKT/mTOR signaling mediates anticancer effects of epigallocatechin‑3‑gallate in ovarian cancer". Oncology Reports 43.6 (2020): 1885-1896.
Chicago
Qin, J., Fu, M., Wang, J., Huang, F., Liu, H., Huangfu, M., Yu, D., Liu, H., Li, X., Guan, X., Chen, X."PTEN/AKT/mTOR signaling mediates anticancer effects of epigallocatechin‑3‑gallate in ovarian cancer". Oncology Reports 43, no. 6 (2020): 1885-1896. https://doi.org/10.3892/or.2020.7571
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