MicroRNA‑370 suppresses the progression and proliferation of human astrocytoma and glioblastoma by negatively regulating β‑catenin and causing activation of FOXO3a

  • Authors:
    • Ming Lu
    • Yong Wang
    • Shizhen Zhou
    • Jun Xu
    • Jing Li
    • Rongjie Tao
    • Yufang Zhu
  • View Affiliations

  • Published online on: November 13, 2017     https://doi.org/10.3892/etm.2017.5494
  • Pages:1093-1098
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Abstract

Certain microRNAs (miRs) regulate the progression and metastasis of various cancer types. In the present study, the role of miR‑370 in the progression and proliferation of human astrocytoma and glioblastoma cells was assessed and the underlying molecular mechanism was investigated. miR‑370 levels in clinical specimens of human glioma and peritumoral tissues were determined by reverse‑transcription quantitative PCR. Oligonucleotide mimics and inhibitors were transfected into the U‑251MG human astrocytoma cell line and the and U‑87MG glioblastoma cell line and the cell viability of was determined by an MTT assay. The expression of β‑catenin and forkhead box protein (FOX)O3a was determined by western blot analysis. The results revealed that the expression of miR‑370 in human glioma tissues was significantly decreased compared with that in peritumoral tissues. The miR‑370 levels in patients with grade III/IV gliomas were significantly decreased compared with those in grade I/II. Transfection with miR‑370 mimics inhibited the proliferation of U‑251MG and U‑87MG cells. Furthermore, the miR‑370 levels were negatively correlated with β‑catenin and positively correlated with nuclear FOXO3a. In conclusion, miR‑370 inhibited the proliferation of human glioma cells by regulating the levels of β‑catenin and the activation of FOXO3a, suggesting that miR‑370 was a tumor suppressor in the progression of human astrocytoma and glioblastoma cells.

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January 2018
Volume 15 Issue 1

Print ISSN: 1792-0981
Online ISSN:1792-1015

2016 Impact Factor: 1.261
Ranked #50/128 Medicine Research and Experimental
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APA
Lu, M., Wang, Y., Zhou, S., Xu, J., Li, J., Tao, R., & Zhu, Y. (2018). MicroRNA‑370 suppresses the progression and proliferation of human astrocytoma and glioblastoma by negatively regulating β‑catenin and causing activation of FOXO3a. Experimental and Therapeutic Medicine, 15, 1093-1098. https://doi.org/10.3892/etm.2017.5494
MLA
Lu, M., Wang, Y., Zhou, S., Xu, J., Li, J., Tao, R., Zhu, Y."MicroRNA‑370 suppresses the progression and proliferation of human astrocytoma and glioblastoma by negatively regulating β‑catenin and causing activation of FOXO3a". Experimental and Therapeutic Medicine 15.1 (2018): 1093-1098.
Chicago
Lu, M., Wang, Y., Zhou, S., Xu, J., Li, J., Tao, R., Zhu, Y."MicroRNA‑370 suppresses the progression and proliferation of human astrocytoma and glioblastoma by negatively regulating β‑catenin and causing activation of FOXO3a". Experimental and Therapeutic Medicine 15, no. 1 (2018): 1093-1098. https://doi.org/10.3892/etm.2017.5494