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Glioma stem cells: markers, hallmarks and therapeutic targeting by metformin
Joseph Najbauer1, Nikola Kraljik, Péter Németh
1Department of Immunology and Biotechnology, University of Pécs Medical School, Szigeti út 12, H-7624, Pécs, Hungary, jnajbauer@yahoo.com.
Abstract:
Malignant gliomas are among the deadliest primary brain tumors. Despite multimodal therapy and advances in chemotherapy, imaging, surgical and radiation techniques, these tumors remain virtually incurable. Glioma stem cells may be responsible for resistance to traditional therapies and tumor recurrence. Therefore, elimination of glioma stem cells may be crucial for achieving therapeutic efficacy. Metformin, a small molecule drug widely used in the therapy of type 2 diabetes, has shown significant anti-tumor effects in patients with breast cancer and prostate cancer. Recent preclinical data suggest that metformin also has therapeutic effects against glioma. Here we review the markers and hallmarks of glioma stem cells, and the molecular mechanisms involved in therapeutic targeting of glioma stem cells by metformin.
Insights
Metformin, a diabetes drug, shows promise against malignant gliomas by targeting deadly glioma stem cells responsible for tumor recurrence and treatment resistance. Eliminating these cells may be key to improving glioma treatment efficacy.
Area of Science:
- Neuro-oncology
- Cancer stem cell research
- Pharmacology
Background:
- Malignant gliomas are aggressive primary brain tumors with poor prognoses.
- Current multimodal therapies often fail due to treatment resistance and tumor recurrence.
- Glioma stem cells are implicated in therapeutic resistance and tumor regrowth.
Purpose of the Study:
- To review the characteristics of glioma stem cells.
- To explore the molecular mechanisms of metformin's anti-glioma effects.
- To assess metformin as a potential therapeutic agent against glioma stem cells.
Main Methods:
- Literature review of glioma stem cell markers and hallmarks.
- Analysis of preclinical data on metformin's efficacy in glioma models.
- Examination of molecular pathways targeted by metformin in glioma stem cells.
Main Results:
- Glioma stem cells possess distinct markers and contribute to tumor aggressiveness.
- Metformin exhibits preclinical anti-tumor activity against glioma.
- Metformin targets key molecular pathways relevant to glioma stem cell survival and proliferation.
Conclusions:
- Targeting glioma stem cells is critical for improving malignant glioma treatment.
- Metformin demonstrates potential as a therapeutic strategy against glioma stem cells.
- Further research into metformin's mechanisms may lead to novel glioma therapies.
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