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TUBB4A Inhibits Glioma Development by Regulating ROS-PINK1/Parkin-Mitophagy Pathway

Xueru Xi1, Suqin Chen1, Xiaoli Zhao1

  • 1School of Nursing, Nanjing Medical University, Nanjing, China.

Molecular Neurobiology
|September 4, 2024
PubMed

Insights

Tubulin beta class IVA (TUBB4A) acts as a prognostic marker in glioma, inhibiting tumor progression by promoting ROS generation and mitophagy via the PINK1/Parkin pathway.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Glioma is an aggressive brain tumor with poor patient outcomes.
  • Identifying novel therapeutic targets is crucial for improving glioma treatment.
  • Tubulin beta class IVA (TUBB4A) function in glioma remains largely uncharacterized.

Purpose of the Study:

  • To investigate the role and underlying mechanism of TUBB4A in glioma progression.
  • To determine if TUBB4A can serve as a prognostic biomarker for glioma patients.
  • To explore TUBB4A's potential as a therapeutic target for glioma.

Main Methods:

  • Bioinformatic analysis of TUBB4A expression in human glioma datasets.
  • In vitro experiments using U251-MG and U87-MG glioma cell lines with TUBB4A overexpression.
  • Assays included MTT, CCK8, LDH, wound healing, Transwell, western blotting, ROS detection (DCFH-DA), and mitochondrial membrane potential (MMP) assessment (JC-1).

Main Results:

  • TUBB4A expression correlated with higher tumor grade, IDH1/1p19q status, and poorer survival in glioma patients.
  • Overexpression of TUBB4A suppressed glioma cell proliferation, migration, and invasion, while enhancing apoptosis.
  • TUBB4A overexpression induced ROS generation, MMP depolarization, and mitophagy via the PINK1/Parkin pathway.

Conclusions:

  • TUBB4A serves as a significant molecular marker for predicting glioma prognosis.
  • TUBB4A inhibits glioma progression by modulating the ROS-PINK1/Parkin-mitophagy axis.
  • Targeting TUBB4A presents a promising therapeutic strategy for glioma treatment.
Keywords:
GliomaMitophagyPINK1/ParkinROSTUBB4A

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