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Long non-coding RNA MEG3 inhibits the proliferation and metastasis of oral squamous cell carcinoma by regulating the WNT/β-catenin signaling pathway

  • Authors:
    • Zongxiang Liu
    • Cui Wu
    • Nina Xie
    • Penglai Wang
  • View Affiliations / Copyright

    Affiliations: Department of Oral and Maxillofacial Surgery, Xuzhou Stomatological Hospital, Xuzhou, Jiangsu 221006, P.R. China
    Copyright: © Liu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 4053-4058
    |
    Published online on: July 27, 2017
       https://doi.org/10.3892/ol.2017.6682
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Abstract

This study aimed to investigate how long non‑coding RNA (lncRNA) maternally expressed gene 3 (MEG3) inhibits the growth and metastasis of oral squamous cell carcinoma (OSCC) by regulating WNT/β‑catenin signaling pathway in order to explore the antitumor effect of MEG3 and to provide a potential molecular target for the treatment of OSCC. The RT-qPCR technique was used to quantitatively analyze the expression of MEG3 in cancer and adjacent tissues collected from the patients after surgery. Using the Lipofectamine method, the MEG3 overexpression vector and the siRNA interference vector were constructed and transfected into SCC15 and Cal27 cells, respectively, followed by cell proliferation, apoptosis and metastasis analyses. The semi-quantitative analysis of the expression of the β-catenin protein in transfected cells was performed by the western blot analysis, and the activity of the WNT/β-catenin signaling pathway was analyzed using the TOP/FOP flash reporters. In addition, the cells were treated with decitabine to investigate the correlation between the MEG3 expression and the DNA methylation. Results showed that the expression level of MEG3 was significantly decreased in OSCC (p<0.05) and overexpression of MEG3 inhibited the proliferation and metastasis of cancer cells and promoted apoptosis. Importantly, MEG3 played a role as a tumor suppressor by inhibiting the WNT/β-catenin signaling pathway. In addition, the expression of the MEG3 was significantly affected by the degree of DNA methylation. It was concluded that the lncRNA MEG3 can inhibit the growth and metastasis of OSCC by negatively regulating the WNT/β-catenin signaling pathway.
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Copy and paste a formatted citation
Spandidos Publications style
Liu Z, Wu C, Xie N and Wang P: Long non-coding RNA MEG3 inhibits the proliferation and metastasis of oral squamous cell carcinoma by regulating the WNT/β-catenin signaling pathway. Oncol Lett 14: 4053-4058, 2017.
APA
Liu, Z., Wu, C., Xie, N., & Wang, P. (2017). Long non-coding RNA MEG3 inhibits the proliferation and metastasis of oral squamous cell carcinoma by regulating the WNT/β-catenin signaling pathway. Oncology Letters, 14, 4053-4058. https://doi.org/10.3892/ol.2017.6682
MLA
Liu, Z., Wu, C., Xie, N., Wang, P."Long non-coding RNA MEG3 inhibits the proliferation and metastasis of oral squamous cell carcinoma by regulating the WNT/β-catenin signaling pathway". Oncology Letters 14.4 (2017): 4053-4058.
Chicago
Liu, Z., Wu, C., Xie, N., Wang, P."Long non-coding RNA MEG3 inhibits the proliferation and metastasis of oral squamous cell carcinoma by regulating the WNT/β-catenin signaling pathway". Oncology Letters 14, no. 4 (2017): 4053-4058. https://doi.org/10.3892/ol.2017.6682
Copy and paste a formatted citation
x
Spandidos Publications style
Liu Z, Wu C, Xie N and Wang P: Long non-coding RNA MEG3 inhibits the proliferation and metastasis of oral squamous cell carcinoma by regulating the WNT/β-catenin signaling pathway. Oncol Lett 14: 4053-4058, 2017.
APA
Liu, Z., Wu, C., Xie, N., & Wang, P. (2017). Long non-coding RNA MEG3 inhibits the proliferation and metastasis of oral squamous cell carcinoma by regulating the WNT/β-catenin signaling pathway. Oncology Letters, 14, 4053-4058. https://doi.org/10.3892/ol.2017.6682
MLA
Liu, Z., Wu, C., Xie, N., Wang, P."Long non-coding RNA MEG3 inhibits the proliferation and metastasis of oral squamous cell carcinoma by regulating the WNT/β-catenin signaling pathway". Oncology Letters 14.4 (2017): 4053-4058.
Chicago
Liu, Z., Wu, C., Xie, N., Wang, P."Long non-coding RNA MEG3 inhibits the proliferation and metastasis of oral squamous cell carcinoma by regulating the WNT/β-catenin signaling pathway". Oncology Letters 14, no. 4 (2017): 4053-4058. https://doi.org/10.3892/ol.2017.6682
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