Mitochondrial Metabolism and Dynamics in Cancer Cells.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing mechanistic biology without new human data
PubMed 42144522 · doi:10.1007/978-3-032-21861-2_6
What was done
Narrative review synthesizing current concepts in cancer cell mitochondrial biology, focusing on oxidative phosphorylation, reactive oxygen species generation, calcium homeostasis, and structural dynamics (fusion and fission).
What was found
The abstract reports no numerical data. It conceptually outlines that cancer cell mitochondria remain functional rather than defective, utilizing oxidative phosphorylation alongside glycolysis. Mitochondrial reactive oxygen species stabilize hypoxia-inducible factor-1 to promote hypoxic survival and angiogenesis. Mitochondrial fusion supports oxidative phosphorylation and stem cell quiescence, whereas fission promotes proliferation, migration, immune evasion, and resistance to chemo-, radio-, and immunotherapy.
Why it matters
This review underscores the departure from the classic Warburg hypothesis, framing mitochondrial metabolic flexibility and structural remodeling as key drivers of tumor evolution and therapeutic targets.
Limits
The paper is a narrative review presenting no primary empirical data, no quantitative metrics, and no systematic search protocol in the abstract. Specific tumor types and clinical translational constraints are not detailed.
Cited by
- contradicts All major cancer tumors ferment energy due to mitochondrial dysfunction, and no tumor grows uncontrollably without relying on a fermentation mechanism.