Open Access

lncRNA TPTEP1 inhibits stemness and radioresistance of glioma through miR‑106a‑5p‑mediated P38 MAPK signaling

  • Authors:
    • Ting Tang
    • Ling‑Xing Wang
    • Mei‑Li Yang
    • Rong‑Mou Zhang
  • View Affiliations

  • Published online on: September 28, 2020     https://doi.org/10.3892/mmr.2020.11542
  • Pages: 4857-4867
  • Copyright: © Tang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Glioma is diagnosed as the most common intracranial malignant tumor. Cancer stem cells determine stemness and radioresistance, and may facilitate glioma recurrence. The present study aimed to investigate whether the long non‑coding RNA (lncRNA) transmembrane phosphatase with tensin homology pseudogene 1 (TPTEP1) regulated cell stemness and radioresistance of glioma, and determine the underlying molecular mechanism of TPTEP1 in the modulation of glioma progression. Cell and molecular biology techniques were applied for investigating the role of TPTEP1 in glioma cell lines, animal model, and clinical samples. The results demonstrated that TPTEP1 attenuated stemness and radioresistance of glioma both in vitro and in vivo. In addition, TPTEP1 augmented MAPK14 expression by competitively interacting with microRNA (miR)‑106a‑5p, thus activating the P38 MAPK signaling pathway, and suppressing glioma stemness and radioresistance. TPTEP1 functionally bound to miR‑106a‑5p, which formed a reciprocal regulatory loop to stimulate the P38 MAPK signaling pathway. Low TPTEP1 expression levels were detected in high‑grade glioma tissues compared with low‑grade glioma tissues, and were positively associated with poor prognosis of patients with glioma. Furthermore, analysis using data from The Cancer Genome Atlas database confirmed the molecular mechanism and biological significance of dysregulation of TPTEP1 in glioma progression. Taken together, the results of the present study suggest that TPTEP1 may be applied as a diagnostic and prognostic indicator for glioma, and may be an alternative target for the treatment of glioma.
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December-2020
Volume 22 Issue 6

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

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Spandidos Publications style
Tang T, Wang LX, Yang ML and Zhang RM: lncRNA TPTEP1 inhibits stemness and radioresistance of glioma through miR‑106a‑5p‑mediated P38 MAPK signaling. Mol Med Rep 22: 4857-4867, 2020.
APA
Tang, T., Wang, L., Yang, M., & Zhang, R. (2020). lncRNA TPTEP1 inhibits stemness and radioresistance of glioma through miR‑106a‑5p‑mediated P38 MAPK signaling. Molecular Medicine Reports, 22, 4857-4867. https://doi.org/10.3892/mmr.2020.11542
MLA
Tang, T., Wang, L., Yang, M., Zhang, R."lncRNA TPTEP1 inhibits stemness and radioresistance of glioma through miR‑106a‑5p‑mediated P38 MAPK signaling". Molecular Medicine Reports 22.6 (2020): 4857-4867.
Chicago
Tang, T., Wang, L., Yang, M., Zhang, R."lncRNA TPTEP1 inhibits stemness and radioresistance of glioma through miR‑106a‑5p‑mediated P38 MAPK signaling". Molecular Medicine Reports 22, no. 6 (2020): 4857-4867. https://doi.org/10.3892/mmr.2020.11542