MicroRNA-365 inhibits proliferation, migration and invasion of glioma by targeting PIK3R3

  • Authors:
    • Yonggang Zhu
    • Hongguang Zhao
    • Min Rao
    • Songbai Xu
  • View Affiliations

  • Published online on: February 16, 2017     https://doi.org/10.3892/or.2017.5458
  • Pages: 2185-2192
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Abstract

A growing body of evidence suggests that microRNA-365 (miR-365) played crucial role in the initiation and development of many types of cancers. However, the biological role of miR-365 in human glioma remains unclear. Herein, the aims of this study were to investigate the role and underlying mechanisms of miR-365 in glioma by a series of in vitro and in vivo experiments. We found that miR-365 was strongly downregulated in malignant glioma tissues and cell lines. Restoration of the expression of miR-365 in glioma cells significantly inhibited cell proliferation, migration and invasion in vitro and tumor growth in vivo. Notably, phosphoinositide-3-kinase regulatory subunit 3 (PIK3R3) was proved to be a direct target of miR-365 in glioma cells, and its mRNA expression was inversely correlated with miR-365 expression in clinical glioma tissues. PIK3R3 overexpression in miR-365 expressing cells could rescue proliferation, migration and invasion inhibition of miR-365. In addition, miR-365 was able to inhibit the phosphorylation of AKT and mTOR in vitro and in vivo, which are key participants in the AKT/mTOR pathway. These results suggest that miR-365 functioned as a tumor suppressor in glioma by targeting PIK3R3, suggesting that miR-365 has potential as therapeutic targets for glioma.
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April-2017
Volume 37 Issue 4

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

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Spandidos Publications style
Zhu Y, Zhao H, Rao M and Xu S: MicroRNA-365 inhibits proliferation, migration and invasion of glioma by targeting PIK3R3. Oncol Rep 37: 2185-2192, 2017.
APA
Zhu, Y., Zhao, H., Rao, M., & Xu, S. (2017). MicroRNA-365 inhibits proliferation, migration and invasion of glioma by targeting PIK3R3. Oncology Reports, 37, 2185-2192. https://doi.org/10.3892/or.2017.5458
MLA
Zhu, Y., Zhao, H., Rao, M., Xu, S."MicroRNA-365 inhibits proliferation, migration and invasion of glioma by targeting PIK3R3". Oncology Reports 37.4 (2017): 2185-2192.
Chicago
Zhu, Y., Zhao, H., Rao, M., Xu, S."MicroRNA-365 inhibits proliferation, migration and invasion of glioma by targeting PIK3R3". Oncology Reports 37, no. 4 (2017): 2185-2192. https://doi.org/10.3892/or.2017.5458