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Updated: Jan 19, 2026

Defining Gene Functions in Tumorigenesis by Ex vivo Ablation of Floxed Alleles in Malignant Peripheral Nerve Sheath Tumor Cells
Published on: August 25, 2021
Starving the Devourer: Cutting Cancer Off from Its Favorite Foods
William P Katt1, Michael J Lukey1, Richard A Cerione2
1Department of Molecular Medicine, Cornell University, Ithaca, NY 14853, USA.
Abstract:
Increased consumption of glucose and glutamine are metabolic hallmarks of tumorigenesis. In this issue of Cell Chemical Biology, Reckzeh et al. (2019) describe the discovery of Glutor, a potent inhibitor of cellular glucose uptake. Combining Glutor with the glutaminase inhibitor CB-839 creates a metabolic crisis in cancer cells, synergistically impeding proliferation.
Insights
Researchers discovered Glutor, a novel inhibitor of glucose uptake. Combining it with a glutaminase inhibitor creates a metabolic crisis, halting cancer cell proliferation.
Area of Science:
- Biochemistry
- Cancer Biology
- Metabolic Pathways
Background:
- Tumorigenesis is characterized by increased glucose and glutamine metabolism.
- Targeting cancer cell metabolism is a promising therapeutic strategy.
- Understanding nutrient dependencies is crucial for cancer treatment.
Purpose of the Study:
- To discover novel inhibitors of cancer cell metabolism.
- To investigate the synergistic effects of targeting glucose and glutamine pathways.
- To identify new therapeutic strategies for cancer treatment.
Main Methods:
- Discovery and characterization of Glutor, a potent inhibitor of cellular glucose uptake.
- Utilizing the glutaminase inhibitor CB-839.
- Assessing the combined effect of Glutor and CB-839 on cancer cell proliferation.
Main Results:
- Glutor effectively inhibits cellular glucose uptake.
- The combination of Glutor and CB-839 induces a metabolic crisis in cancer cells.
- Combined inhibition synergistically impedes cancer cell proliferation.
Conclusions:
- Targeting both glucose and glutamine metabolism simultaneously offers a potent anti-cancer strategy.
- Glutor represents a promising new therapeutic agent for cancer treatment.
- Metabolic interventions hold significant potential for future cancer therapies.
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