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Overcoming Radiation Resistance in Gliomas by Targeting Metabolism and DNA Repair Pathways
Wei Meng1, Joshua D Palmer1, Michael Siedow1
1Department of Radiation Oncology, The Ohio State University, Columbus, OH 43210, USA.
Abstract:
Gliomas represent a wide spectrum of brain tumors characterized by their high invasiveness, resistance to chemoradiotherapy, and both intratumoral and intertumoral heterogeneity. Recent advances in transomics studies revealed that enormous abnormalities exist in different biological layers of glioma cells, which include genetic/epigenetic alterations, RNA expressions, protein expression/modifications, and metabolic pathways, which provide opportunities for development of novel targeted therapeutic agents for gliomas. Metabolic reprogramming is one of the hallmarks of cancer cells, as well as one of the oldest fields in cancer biology research. Altered cancer cell metabolism not only provides energy and metabolites to support tumor growth, but also mediates the resistance of tumor cells to antitumor therapies. The interactions between cancer metabolism and DNA repair pathways, and the enhancement of radiotherapy sensitivity and assessment of radiation response by modulation of glioma metabolism are discussed herein.
Insights
Glioma metabolism reprogramming offers new therapeutic targets. Modulating glioma metabolism can enhance radiotherapy sensitivity and improve treatment response in brain tumors.
Area of Science:
- Oncology
- Cancer Biology
- Neuro-oncology
Background:
- Gliomas are aggressive brain tumors with significant heterogeneity.
- Tumor cells exhibit metabolic reprogramming, a hallmark of cancer.
- Metabolic alterations support tumor growth and therapy resistance.
Purpose of the Study:
- To explore the role of metabolic reprogramming in glioma.
- To discuss the link between glioma metabolism and DNA repair.
- To investigate metabolic modulation for enhancing radiotherapy sensitivity.
Main Methods:
- Review of transomics studies in glioma.
- Analysis of metabolic pathways in cancer cells.
- Discussion of interactions between metabolism, DNA repair, and radiotherapy response.
Main Results:
- Transomics reveal widespread abnormalities in glioma biological layers.
- Metabolic reprogramming is crucial for glioma growth and resistance.
- Modulating glioma metabolism impacts DNA repair and radiotherapy sensitivity.
Conclusions:
- Targeting metabolic pathways presents novel therapeutic opportunities for gliomas.
- Understanding glioma metabolism is key to overcoming treatment resistance.
- Metabolic modulation strategies may improve radiotherapy outcomes for brain tumors.
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