A lentivirus-mediated miR-23b sponge diminishes the malignant phenotype of glioma cells in vitro and in vivo

  • Authors:
    • Luyue Chen
    • Kailiang Zhang
    • Zhendong Shi
    • Anling Zhang
    • Zhifan Jia
    • Guangxiu Wang
    • Peiyu Pu
    • Chunsheng Kang
    • Lei Han
  • View Affiliations

  • Published online on: February 4, 2014     https://doi.org/10.3892/or.2014.3012
  • Pages: 1573-1580
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Abstract

microRNA (miRNA) sponges are RNA molecules with repeated miRNA binding sequences that can sequester miRNAs from their endogenous target mRNAs, and a stably expressed miRNA sponge is particularly valuable for long-term loss-of-function studies in vitro and in vivo. Glioblastoma multiforme (GBM) is the most common primary brain tumor in adults and is characterized by extraordinarily angiogenic, invasive and migratory capabilities, hallmark features that make the disease incurable. Nonetheless, improvements in clinical treatment and a better understanding of the underlying molecular mechanisms have been achieved within the past few decades. miR-23b has previously been found to function as a tumor oncogene in GBM. In the present study, we employed an microRNA sponge that was forcibly expressed using a lentiviral vector to knock down the expression of miR-23b in vitro and in vivo and assessed the pleiotropic effects on glioma angiogenesis, invasion and migration. We demonstrated that the inhibition of miR-23b in glioma cell lines and orthotopic tumor mouse models resulted in a reduction in tumor malignancy, through the downregulation of HIF-1α, β-catenin, MMP2, MMP9, VEGF and ZEB1 and increased expression of VHL and E-cadherin. Therefore, we suggest that this miR-23b sponge could be developed into a promising anticancer therapy either alone or in combination with current targeted therapies.
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2014-April
Volume 31 Issue 4

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

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Spandidos Publications style
Chen L, Zhang K, Shi Z, Zhang A, Jia Z, Wang G, Pu P, Kang C and Han L: A lentivirus-mediated miR-23b sponge diminishes the malignant phenotype of glioma cells in vitro and in vivo. Oncol Rep 31: 1573-1580, 2014
APA
Chen, L., Zhang, K., Shi, Z., Zhang, A., Jia, Z., Wang, G. ... Han, L. (2014). A lentivirus-mediated miR-23b sponge diminishes the malignant phenotype of glioma cells in vitro and in vivo. Oncology Reports, 31, 1573-1580. https://doi.org/10.3892/or.2014.3012
MLA
Chen, L., Zhang, K., Shi, Z., Zhang, A., Jia, Z., Wang, G., Pu, P., Kang, C., Han, L."A lentivirus-mediated miR-23b sponge diminishes the malignant phenotype of glioma cells in vitro and in vivo". Oncology Reports 31.4 (2014): 1573-1580.
Chicago
Chen, L., Zhang, K., Shi, Z., Zhang, A., Jia, Z., Wang, G., Pu, P., Kang, C., Han, L."A lentivirus-mediated miR-23b sponge diminishes the malignant phenotype of glioma cells in vitro and in vivo". Oncology Reports 31, no. 4 (2014): 1573-1580. https://doi.org/10.3892/or.2014.3012