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Warburg Effect: Cancer Cells Prefer Glycolysis Even in Presence of Oxygen
Otto Warburg, 1920s · The Metabolism of Tumours (1931)
Confidence: High
Cancer cells exhibit a metabolic shift to glycolysis even when oxygen is available, a phenomenon known as the Warburg effect, which promotes rapid growth and proliferation.
Core Concepts
The Problem
Why do cancer cells rely on inefficient glycolysis?
The Claim
Cancer cells reprogram metabolism to support biosynthesis and growth.
Key Evidence
- •Warburg's original observations in the 1920s
- •Modern PET imaging shows high glucose uptake in tumors
- •Many cancers upregulate glycolytic enzymes
Practical Implication
Understanding this metabolic reprogramming opens avenues for cancer therapies targeting metabolism.
Nuance & Limits
The effect is not universal; some cancers rely more on oxidative phosphorylation, and the exact mechanisms are still debated.
Source Material
■The Metabolism of Tumours — Otto Warburg (1931)
Citation Density
Highly cited
Gaps
- ⚠ The precise signaling pathways that enforce the Warburg effect in different cancers are still being elucidated
- ⚠ The role of mitochondrial function in the Warburg effect is complex
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