Open Access

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

  • Published online on: March 31, 2020     https://doi.org/10.3892/or.2020.7571
  • Pages: 1885-1896
  • Copyright: © Qin et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


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.
View Figures
View References

Related Articles

Journal Cover

June-2020
Volume 43 Issue 6

Print ISSN: 1021-335X
Online ISSN:1791-2431

Sign up for eToc alerts

Recommend to Library

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