Scientists say house cats could help unlock better cancer treatments for humans — SkimNews
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- Researchers published a large international study in Science, genetically analyzing tumor samples from nearly 500 domestic cats across five countries in an effort to map feline cancer genetics at unprecedented scale.
- The study found FBXW7 was the most common driver gene in cat mammary tumors, mutated in over 50% of cases — mirroring its role as a marker of worse prognosis in human breast cancer.
- Chemotherapy drugs showed greater effectiveness against cat mammary tumors carrying the mutated FBXW7 gene, though researchers noted the result was observed only in tissue samples, not living cats or humans.
- The team created a freely available genetic database of feline cancer samples so other researchers can study driver gene patterns across tumor types.
- The research supports the One Medicine approach, leveraging cats' shared environments with humans — including household chemicals, air pollutants, and smoke — to study how genetics and environmental exposures interact in cancer development.
- The international collaboration included the Wellcome Sanger Institute, University of Guelph, and University of Bern, funded by EveryCat Health Foundation, Wellcome, the Natural Sciences and Engineering Research Council of Canada, and the Swiss National Science Foundation.
Why it matters: The study delivers the first large-scale genetic atlas of feline cancer, advancing precision oncology for a species where cancer is a leading killer but genetic knowledge lagged behind dogs. Over 50% of cat mammary tumors carry FBXW7 mutations — the same gene tied to worse outcomes in human breast cancer. Chemo-sensitivity results come only from tissue samples.
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