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The GGCT and REST positive feedback loop promotes tumor growth in Glioma.

Shang-Hang Shen1, Si-Fang Chen2, Jian-Feng Guo2

  • 1Department of Neurosurgery, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China; School of Life Sciences, Xiamen University, Xiamen 361005, China.

Translational Oncology
|August 11, 2024
PubMed
Summary

The GGCT/REST/miR-34a-5p axis promotes glioma progression. Targeting this axis, involving γ-glutamylcyclotransferase (GGCT), REST, and miR-34a-5p, offers a promising therapeutic strategy for glioma treatment.

Keywords:
GGCTGliomaRESTmiR-34a-5p

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Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • γ-Glutamylcyclotransferase (GGCT) is implicated in tumorigenesis and glutathione metabolism.
  • Understanding GGCT's role in glioma is crucial for developing targeted therapies.

Purpose of the Study:

  • To elucidate the biological role and molecular mechanisms of GGCT in glioma.
  • To investigate the potential of the GGCT/REST/miR-34a-5p axis as a therapeutic target.

Main Methods:

  • Utilized public databases (GEPIA, CGGA, PrognoScan) for expression and prognosis analysis.
  • Employed cell-based assays (CCK-8, Transwell, Wound healing, Flow cytometry) and RNA-sequencing.
  • Confirmed a positive feedback loop using RT-qPCR, western blot, and dual luciferase reporter assays.

Main Results:

  • High GGCT and REST expression correlated with poor glioma prognosis.
  • GGCT silencing inhibited glioma cell proliferation, migration, and induced apoptosis.
  • A positive feedback loop (GGCT/REST/miR-34a-5p) was identified, promoting glioma progression.

Conclusions:

  • The GGCT/REST/miR-34a-5p axis is a key driver of glioma.
  • This axis represents a promising therapeutic target for glioma treatment.