HIF-1 mediates the Warburg effect in clear cell renal carcinoma.
Level 5 - mechanism / opinion, no new human data
Narrative review of bench and molecular mechanisms without clinical trial or patient cohort data.
PubMed 17551816 · doi:10.1007/s10863-007-9081-2
What was done
This paper reviews the molecular pathway linking von Hippel-Lindau (VHL) protein loss-of-function to hypoxia-inducible factor 1 (HIF-1) dysregulation and metabolic reprogramming in clear cell renal cell carcinoma.
What was found
The abstract reports no numerical data. Mechanistically, oxygen-dependent proline hydroxylation on HIF-1alpha enables binding of VHL for proteasomal degradation. In clear cell renal carcinoma, biallelic VHL inactivation prevents this degradation, causing constitutive HIF-1 transcriptional activity under aerobic conditions. This drives increased glucose uptake, glycolysis, and lactate production alongside decreased cellular respiration.
Why it matters
It outlines a defined genetic and transcriptional mechanism explaining aerobic glycolysis in clear cell renal cell carcinoma, linking a specific tumor suppressor loss to cancer metabolic shifts.
Limits
The abstract describes a narrative mechanistic model without reporting primary experimental numbers, sample sizes, clinical outcome data, or therapeutic intervention results.
Cited by
- supports Hypoxia in an expanding tumor mass damages mitochondria, causing aggressive cancer cells to shift away from oxidative phosphorylation toward glycolysis relying on fermentable fuels like glucose and glutamine.