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Updated: Jun 14, 2026

Yeast As a Chassis for Developing Functional Assays to Study Human P53
14:57

Yeast As a Chassis for Developing Functional Assays to Study Human P53

Published on: August 4, 2019

Chloroquine activates the p53 pathway and induces apoptosis in human glioma cells

Ella L Kim1, Robin Wüstenberg, Anne Rübsam

  • 1The Translational Neurooncology Research Group, Department of Neurosurgery, Georg-August University Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany. ella.kim@med.uni-goettingen.de

Neuro-Oncology
|March 24, 2010
PubMed

Insights

Chloroquine activates the p53 pathway, suppressing growth and inducing apoptosis in glioblastoma cells. This quinoline derivative shows therapeutic potential as an adjunct to chemotherapy for brain tumors.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Glioblastoma is a highly aggressive brain tumor with limited treatment options.
  • Targeting the p53 pathway is a promising strategy for glioblastoma therapy.
  • Novel therapeutic agents are urgently needed to improve patient outcomes.

Purpose of the Study:

  • To investigate the anti-cancer effects of chloroquine on glioblastoma cells.
  • To elucidate the role of the p53 pathway in chloroquine's mechanism of action.
  • To evaluate chloroquine's therapeutic potential in a glioblastoma mouse model.

Main Methods:

  • In vitro cell culture experiments using glioblastoma cell lines (U87MG).
  • In vivo studies utilizing an orthotopic human glioblastoma mouse model.
  • siRNA-mediated p53 gene silencing to assess pathway involvement.
  • Assessment of cell viability, apoptosis, and growth suppression.

Main Results:

  • Chloroquine demonstrated significant suppression of glioblastoma cell growth both in vitro and in vivo.
  • Chloroquine treatment led to the induction of apoptosis in glioma cells.
  • siRNA-mediated p53 knockdown partially inhibited chloroquine-induced apoptosis, highlighting p53's role.
  • Evidence suggests both p53-dependent and independent mechanisms contribute to chloroquine's anti-glioma effects.

Conclusions:

  • Chloroquine exhibits potent anti-glioma activity by activating the p53 pathway and inducing apoptosis.
  • Chloroquine's efficacy involves both p53-dependent and independent mechanisms.
  • Chloroquine represents a promising therapeutic agent for glioblastoma, potentially enhancing existing chemotherapy regimens.

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