When glucose is scarce, some cancer cells continue to grow by using glutamine as a substitute energy source.
Strongly supported
Multiple high-quality studies back this claim.
Not medical advice. For informational purposes only. Always consult a healthcare professional.
When glucose is scarce, some cancer cells continue to grow by using glutamine as a substitute energy source.
See the technical phrasing
Certain cancer cells sustain proliferation using glutamine as an alternative carbon source when glucose is limited.
When glucose is scarce, some cancer cells take in more glutamine and use it to rebuild the energy-producing machinery inside their mitochondria. This allows them to keep making the energy and building blocks needed to keep dividing, even without sugar. A key protein helps bring glutamine into the cell and activates a signaling chain that turns on genes to build more mitochondria. Glutamine also feeds into the cycle that makes energy and nucleotides, but only if the cell can properly channel its carbon atoms into DNA components.
What the research says
Supports
3 studies
Study: Sestrin2 facilitates glutamine‐dependent transcription of PGC‐1α and survival of liver cancer cells under glucose limitation
This study provides evidence supporting the claim.
Study: Phosphoenolpyruvate carboxykinase 2 activation of the AMPK–CEBPB axis to enhance glutamine utilization to promote glycolysis and malignant behavior in adenocarcinomas cells under glucose deprivation
This study provides evidence supporting the claim.
Study: Cellular response to glutamine and/or glucose deprivation in in vitro transformed human fibroblasts.
This study provides evidence supporting the claim.
Contradicts
2 studies
Study: Glucose Limitation Alters Glutamine Metabolism in MUC1-Overexpressing Pancreatic Cancer Cells
This study provides evidence contradicting the claim.
Study: https://doi.org/10.1186/s13058-025-02115-5
This study provides evidence contradicting the claim.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 5 supporting studies