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Article

Estrogen stimulates the invasion of ovarian cancer cells via activation of the PI3K/AKT pathway and regulation of its downstream targets E‑cadherin and α‑actinin‑4

  • Authors:
    • Zhiying Lu
    • Ying Zhang
    • Xiaohui Yan
    • Yisong Chen
    • Xiang Tao
    • Jiajia Wang
    • Nan Jia
    • Tianjiao Lyu
    • Junyan Wang
    • Jingxin Ding
    • Weiwei Feng
    • Keqin Hua
  • View Affiliations / Copyright

    Affiliations: Department of Gynecology, The Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, P.R. China, Department of Pathology, The Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, P.R. China
  • Pages: 2433-2440
    |
    Published online on: September 12, 2014
       https://doi.org/10.3892/mmr.2014.2561
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Abstract

Previous studies by our group revealed that the phosphoinositide 3‑kinase (PI3K)/AKT pathway was involved in estrogen‑induced metastasis in ovarian cancer cells. In the present study, the role and mechanism of estrogen‑induced invasion was further explored using a stable short hairpin RNA (shRNA) estrogen receptor α/β (ER α/β) SKOV3 cell line when ER α and ER β were knocked down by lentiviral infection. The effects of estrogen and LY294002, a PI3K inhibitor, on the invasion of shRNA ER α/β SKOV3 cells were evaluated in vitro and in vivo. 17‑β estradiol promoted cell invasion, activated phosphorylated AKT in a dose‑ and time‑dependent manner, decreased E‑cadherin and increased cytoplasmic α‑actinin‑4 expression. When the PI3K/AKT pathway was suppressed by LY294002, the effect of estrogen was attenuated. Estrogen stimulated the growth of shRNA ER α/β SKOV3 xenograft tumors in nude mice, whereas LY294002 inhibited the growth and antagonized the effect of estrogen. The results indicate that estrogen promotes the invasion of ovarian cancer cells via activation of the PI3K/AKT pathway, downregulation of E‑cadherin and upregulation of α‑actinin‑4 in an ER‑independent manner. Inhibiting the PI3K/AKT pathway may be a useful treatment for ovarian carcinoma.
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Copy and paste a formatted citation
Spandidos Publications style
Lu Z, Zhang Y, Yan X, Chen Y, Tao X, Wang J, Jia N, Lyu T, Wang J, Ding J, Ding J, et al: Estrogen stimulates the invasion of ovarian cancer cells via activation of the PI3K/AKT pathway and regulation of its downstream targets E‑cadherin and α‑actinin‑4. Mol Med Rep 10: 2433-2440, 2014.
APA
Lu, Z., Zhang, Y., Yan, X., Chen, Y., Tao, X., Wang, J. ... Hua, K. (2014). Estrogen stimulates the invasion of ovarian cancer cells via activation of the PI3K/AKT pathway and regulation of its downstream targets E‑cadherin and α‑actinin‑4. Molecular Medicine Reports, 10, 2433-2440. https://doi.org/10.3892/mmr.2014.2561
MLA
Lu, Z., Zhang, Y., Yan, X., Chen, Y., Tao, X., Wang, J., Jia, N., Lyu, T., Wang, J., Ding, J., Feng, W., Hua, K."Estrogen stimulates the invasion of ovarian cancer cells via activation of the PI3K/AKT pathway and regulation of its downstream targets E‑cadherin and α‑actinin‑4". Molecular Medicine Reports 10.5 (2014): 2433-2440.
Chicago
Lu, Z., Zhang, Y., Yan, X., Chen, Y., Tao, X., Wang, J., Jia, N., Lyu, T., Wang, J., Ding, J., Feng, W., Hua, K."Estrogen stimulates the invasion of ovarian cancer cells via activation of the PI3K/AKT pathway and regulation of its downstream targets E‑cadherin and α‑actinin‑4". Molecular Medicine Reports 10, no. 5 (2014): 2433-2440. https://doi.org/10.3892/mmr.2014.2561
Copy and paste a formatted citation
x
Spandidos Publications style
Lu Z, Zhang Y, Yan X, Chen Y, Tao X, Wang J, Jia N, Lyu T, Wang J, Ding J, Ding J, et al: Estrogen stimulates the invasion of ovarian cancer cells via activation of the PI3K/AKT pathway and regulation of its downstream targets E‑cadherin and α‑actinin‑4. Mol Med Rep 10: 2433-2440, 2014.
APA
Lu, Z., Zhang, Y., Yan, X., Chen, Y., Tao, X., Wang, J. ... Hua, K. (2014). Estrogen stimulates the invasion of ovarian cancer cells via activation of the PI3K/AKT pathway and regulation of its downstream targets E‑cadherin and α‑actinin‑4. Molecular Medicine Reports, 10, 2433-2440. https://doi.org/10.3892/mmr.2014.2561
MLA
Lu, Z., Zhang, Y., Yan, X., Chen, Y., Tao, X., Wang, J., Jia, N., Lyu, T., Wang, J., Ding, J., Feng, W., Hua, K."Estrogen stimulates the invasion of ovarian cancer cells via activation of the PI3K/AKT pathway and regulation of its downstream targets E‑cadherin and α‑actinin‑4". Molecular Medicine Reports 10.5 (2014): 2433-2440.
Chicago
Lu, Z., Zhang, Y., Yan, X., Chen, Y., Tao, X., Wang, J., Jia, N., Lyu, T., Wang, J., Ding, J., Feng, W., Hua, K."Estrogen stimulates the invasion of ovarian cancer cells via activation of the PI3K/AKT pathway and regulation of its downstream targets E‑cadherin and α‑actinin‑4". Molecular Medicine Reports 10, no. 5 (2014): 2433-2440. https://doi.org/10.3892/mmr.2014.2561
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