AI Summary
- LKB1/STK11 loss in lung tumours makes dietary lipid composition exacerbate cancer cachexia.
- Mechanism involves tumour lipid metabolism driving local prostaglandin E2 production and pulmonary sensory neuron activation, triggering anorexia and systemic wasting.
- Findings show cachexia is more than a caloric deficit and support precision nutritional strategies tailored to tumour genotype and lipid profile.
Trends Cancer. 2026 Sep 15:S2405-8033(26)00207-4. doi: 10.1016/j.trecan.2026.08.011. Online ahead of print.
ABSTRACT
Cancer cachexia involves more than a caloric deficit. A recent study by Cross et al. in Science shows that dietary lipid composition exacerbates cachexia in LKB1/STK11-deficient lung cancer through local prostaglandin E2 production and pulmonary sensory neuron activation. By linking local lipid metabolism to anorexia and wasting, these findings support precision nutritional interventions for cancer cachexia.
PMID:42744683 | DOI:10.1016/j.trecan.2026.08.011
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