Warburg effect is a metabolic hallmark of cancer cells in which glucose is preferentially metabolized to lactate even under aerobic conditions. This phenomenon provides a tumor cell growth advantage primarily by supplying:

• A Maximum ATP yield for biosynthetic processes
• B NADH for enhanced mitochondrial oxidative phosphorylation
• C Reduced reactive oxygen species to prevent DNA damage
• D Carbon intermediates (biosynthetic precursors) for rapid cell proliferation ✓

Explanation

Aerobic glycolysis (Warburg effect) is less efficient energetically (2 ATP vs 36 ATP per glucose) but provides abundant carbon intermediates — glucose carbons feed into the pentose phosphate pathway (ribose for nucleotides), serine synthesis, and lipid synthesis pathways essential for rapidly dividing cells. It also regenerates NAD⁺ quickly. The paradox is that tumors sacrifice ATP efficiency for biosynthetic material, which is prioritized over energy production during rapid proliferation.

Reference: Robbins & Cotran Pathologic Basis of Disease, 10th ed.

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Written and medically reviewed by the StethoPrep medical team.