PI3K/Akt/mTOR signaling pathway and targeted therapy for glioblastoma

Xiaoman Li1, Changjing Wu1, Nianci Chen2

  • 1Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China.

Oncotarget
|March 12, 2016
PubMed

Insights

Glioblastoma multiform (GBM) treatments are limited. Targeting the epidermal growth factor receptor (EGFR) and PI3K/Akt/mTOR pathway shows promise for new GBM therapies, with ongoing clinical trials evaluating these inhibitors.

Area of Science:

  • Neuro-oncology
  • Molecular Biology
  • Cancer Therapeutics

Background:

  • Glioblastoma multiform (GBM) is the most aggressive primary brain tumor.
  • Effective treatment options for GBM remain limited.
  • GBM often exhibits epidermal growth factor receptor (EGFR) overexpression or mutation, activating downstream signaling pathways.

Purpose of the Study:

  • To investigate the therapeutic potential of inhibiting the phosphatidylinositol 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) pathway in GBM.
  • To provide an updated overview of clinical trials involving EGFR and PI3K/Akt/mTOR inhibitors for GBM treatment.

Main Methods:

  • Review of scientific literature on GBM pathogenesis and signaling pathways.
  • Analysis of clinical trial data for EGFR and PI3K/Akt/mTOR inhibitors in GBM.
  • Exploration of the rationale for targeting the PI3K/Akt/mTOR pathway.

Main Results:

  • The PI3K/Akt/mTOR pathway is frequently activated in GBM due to EGFR alterations.
  • Inhibition of this pathway represents a promising therapeutic strategy.
  • Several EGFR and PI3K/Akt/mTOR inhibitors are currently under investigation in clinical trials for GBM.

Conclusions:

  • Targeting the EGFR and PI3K/Akt/mTOR pathway is a rational therapeutic approach for GBM.
  • Ongoing clinical trials will determine the efficacy and safety of these targeted therapies.
  • Further research is needed to optimize treatment strategies for GBM patients.

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