Energy metabolism of cancer: Glycolysis versus oxidative phosphorylation (Review).
Level 5 - mechanism / opinion, no new human data
Narrative review of cancer metabolism mechanisms without systematic review methods or original human data.
PubMed 23226794 · doi:10.3892/ol.2012.928
What was done
The authors reviewed literature regarding energy metabolism in normal versus cancer cells, focusing on the debate between traditional Warburg theory of irreversible mitochondrial oxidative phosphorylation (OXPHOS) impairment and contemporary evidence regarding functional mitochondrial capacity in malignancy.
What was found
The abstract reports no numerical data or statistical analyses. It states that while cancer cells exhibit enhanced glycolysis and reduced OXPHOS capacity, OXPHOS remains functionally intact in most cancers. It notes that aerobic glycolysis results from combined influences of oncogenes, tumor suppressors, hypoxia, mitochondrial DNA mutations, and genetic background.
Why it matters
It contextualizes the shift away from the view of permanent mitochondrial dysfunction in cancer, framing intact metabolic pathways as opportunities for targeted therapeutic and diagnostic strategies.
Limits
This is a narrative review that provides no original empirical data, quantitative results, or systematic search methodology in the abstract.
Cited by
- contradicts All major cancer tumors ferment energy due to mitochondrial dysfunction, and no tumor grows uncontrollably without relying on a fermentation mechanism.