iASPP, a microRNA‑124 target, is aberrantly expressed in astrocytoma and regulates malignant glioma cell migration and viability

  • Authors:
    • Xiangrong Liu
    • Jun Kang
    • Si Sun
    • Yumin Luo
    • Xunming Ji
    • Xianwei Zeng
    • Shangfeng Zhao
  • View Affiliations

  • Published online on: November 15, 2017     https://doi.org/10.3892/mmr.2017.8097
  • Pages: 1970-1978
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Abstract

MicroRNAs (miRNAs) regulate biogenesis and disease development by targeting numerous mRNAs. miRNA (miR)‑124 and its direct target, inhibitor of apoptosis‑stimulating protein of p53 (iASPP), may be involved in tumor development and progression. The aim of the present study was to explore the role of miR‑124‑targeted iASPP in glioma. The results demonstrated that miR‑124 was aberrantly expressed in astrocytic glioma tissue and in the human glioblastoma cell lines U87 and U251. The expression of miR‑124 was lower in astrocytic gliomas compared with normal brain (NB) tissues, with a more reduced expression in higher‑grade tumors. In addition, several miR‑124 loci (including miR‑124‑1, miR‑124‑2 and miR‑124‑3) were revealed to be more highly methylated in U87 cells compared with methylation levels in U251 cells and NB cells. Furthermore, the expression of iASPP was higher in high‑grade astrocytic gliomas compared with low‑grade astrocytic gliomas. miR‑124 overexpression effectively inhibited U87 and U251 cell migration. In addition, miR‑124 regulated cell viability and arrested the cell cycle at the G0/G1 phase in these two cell lines. miR‑124 also reduced the expression levels of the cell cycle related genes iASPP, cyclin‑dependent kinase (CDK)4, CDK6 and cyclin D1. Results from the present study indicated that expression of the miR‑124 target gene iASPP may contribute to glioma development and progression.
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January-2018
Volume 17 Issue 1

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Liu X, Kang J, Sun S, Luo Y, Ji X, Zeng X and Zhao S: iASPP, a microRNA‑124 target, is aberrantly expressed in astrocytoma and regulates malignant glioma cell migration and viability. Mol Med Rep 17: 1970-1978, 2018
APA
Liu, X., Kang, J., Sun, S., Luo, Y., Ji, X., Zeng, X., & Zhao, S. (2018). iASPP, a microRNA‑124 target, is aberrantly expressed in astrocytoma and regulates malignant glioma cell migration and viability. Molecular Medicine Reports, 17, 1970-1978. https://doi.org/10.3892/mmr.2017.8097
MLA
Liu, X., Kang, J., Sun, S., Luo, Y., Ji, X., Zeng, X., Zhao, S."iASPP, a microRNA‑124 target, is aberrantly expressed in astrocytoma and regulates malignant glioma cell migration and viability". Molecular Medicine Reports 17.1 (2018): 1970-1978.
Chicago
Liu, X., Kang, J., Sun, S., Luo, Y., Ji, X., Zeng, X., Zhao, S."iASPP, a microRNA‑124 target, is aberrantly expressed in astrocytoma and regulates malignant glioma cell migration and viability". Molecular Medicine Reports 17, no. 1 (2018): 1970-1978. https://doi.org/10.3892/mmr.2017.8097