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Epithelial membrane protein 1 promotes glioblastoma progression through the PI3K/AKT/mTOR signaling pathway

  • Authors:
    • Lifeng Miao
    • Zheng Jiang
    • Jiwei Wang
    • Ning Yang
    • Qichao Qi
    • Wenjing Zhou
    • Zichao Feng
    • Wenjie Li
    • Qing Zhang
    • Bin Huang
    • Anjing Chen
    • Di Zhang
    • Peng Zhao
    • Xingang Li
  • View Affiliations / Copyright

    Affiliations: Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Key Laboratory of Brain Functional Remodeling, Jinan, Shandong 250012, P.R. China
    Copyright: © Miao et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 605-614
    |
    Published online on: June 19, 2019
       https://doi.org/10.3892/or.2019.7204
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Abstract

Glioblastoma multiforme (GBM) is the most malignant intracranial tumor. Although the affected patients are usually treated with surgery combined with radiotherapy and chemotherapy, the median survival time for GBM patients is still approximately 12‑14 months. Identifying the key molecular mechanisms and targets of GBM development may therefore lead to the development of improved therapies for GBM patients. In the present study, the clinical significance and potential function of epithelial membrane protein 1 (EMP1) in malignant gliomas were investigated. Increased EMP1 expression was associated with increasing tumor grade (P<0.001) and worse prognosis in patients (P<0.001) based on TCGA, Rembrandt and CGGA databases for human gliomas. In vitro, gene silencing of EMP1 in U87MG and P3 GBM (primary glioma) cells significantly inhibited tumor proliferation and invasion. In addition, it was revealed that activation of the PI3K/AKT/mTOR signaling pathway is the driving force of EMP1‑promoted glioma progression. Finally, it was demonstrated, using an intracranial GBM animal model, that EMP1 knockdown significantly inhibits tumor growth in vivo and increases overall survival in tumor‑bearing animals. Our research provides new insights into the molecular mechanisms underlying EMP1 knockdown‑mediated inhibition of GBM cell invasion and raises the possibility that targeting of EMP1 may represent a promising strategy for the treatment of GBM.
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Copy and paste a formatted citation
Spandidos Publications style
Miao L, Jiang Z, Wang J, Yang N, Qi Q, Zhou W, Feng Z, Li W, Zhang Q, Huang B, Huang B, et al: Epithelial membrane protein 1 promotes glioblastoma progression through the PI3K/AKT/mTOR signaling pathway. Oncol Rep 42: 605-614, 2019.
APA
Miao, L., Jiang, Z., Wang, J., Yang, N., Qi, Q., Zhou, W. ... Li, X. (2019). Epithelial membrane protein 1 promotes glioblastoma progression through the PI3K/AKT/mTOR signaling pathway. Oncology Reports, 42, 605-614. https://doi.org/10.3892/or.2019.7204
MLA
Miao, L., Jiang, Z., Wang, J., Yang, N., Qi, Q., Zhou, W., Feng, Z., Li, W., Zhang, Q., Huang, B., Chen, A., Zhang, D., Zhao, P., Li, X."Epithelial membrane protein 1 promotes glioblastoma progression through the PI3K/AKT/mTOR signaling pathway". Oncology Reports 42.2 (2019): 605-614.
Chicago
Miao, L., Jiang, Z., Wang, J., Yang, N., Qi, Q., Zhou, W., Feng, Z., Li, W., Zhang, Q., Huang, B., Chen, A., Zhang, D., Zhao, P., Li, X."Epithelial membrane protein 1 promotes glioblastoma progression through the PI3K/AKT/mTOR signaling pathway". Oncology Reports 42, no. 2 (2019): 605-614. https://doi.org/10.3892/or.2019.7204
Copy and paste a formatted citation
x
Spandidos Publications style
Miao L, Jiang Z, Wang J, Yang N, Qi Q, Zhou W, Feng Z, Li W, Zhang Q, Huang B, Huang B, et al: Epithelial membrane protein 1 promotes glioblastoma progression through the PI3K/AKT/mTOR signaling pathway. Oncol Rep 42: 605-614, 2019.
APA
Miao, L., Jiang, Z., Wang, J., Yang, N., Qi, Q., Zhou, W. ... Li, X. (2019). Epithelial membrane protein 1 promotes glioblastoma progression through the PI3K/AKT/mTOR signaling pathway. Oncology Reports, 42, 605-614. https://doi.org/10.3892/or.2019.7204
MLA
Miao, L., Jiang, Z., Wang, J., Yang, N., Qi, Q., Zhou, W., Feng, Z., Li, W., Zhang, Q., Huang, B., Chen, A., Zhang, D., Zhao, P., Li, X."Epithelial membrane protein 1 promotes glioblastoma progression through the PI3K/AKT/mTOR signaling pathway". Oncology Reports 42.2 (2019): 605-614.
Chicago
Miao, L., Jiang, Z., Wang, J., Yang, N., Qi, Q., Zhou, W., Feng, Z., Li, W., Zhang, Q., Huang, B., Chen, A., Zhang, D., Zhao, P., Li, X."Epithelial membrane protein 1 promotes glioblastoma progression through the PI3K/AKT/mTOR signaling pathway". Oncology Reports 42, no. 2 (2019): 605-614. https://doi.org/10.3892/or.2019.7204
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