First Large-Scale Genetic Study of Cat Cancers Reveals Shared Drivers with Humans
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Researchers have published the first large-scale genetic profile of cancers in domestic cats, analyzing tumors from nearly 500 animals. The study found many of the same cancer-driving genes present in human cancers, including a key gene mutation linked to poorer outcomes in human breast cancer. This work represents a significant step in the 'One Medicine' approach, which aims to improve health outcomes across species.
Facts First
- First large-scale genetic profile of cancers in domestic cats based on tumor samples from nearly 500 animals.
- Many cancer-driving genes are shared between feline, human, and dog cancers.
- FBXW7 gene mutations were most frequent in feline mammary tumors, appearing in more than half of samples.
- Similarities were identified between feline and human cancers affecting multiple organ systems.
- Certain chemotherapy drugs appeared more effective in cat mammary tumors carrying the mutated FBXW7 gene in tissue samples.
What Happened
Researchers published a study in the journal Science representing the first large-scale effort to genetically profile cancers in domestic cats. The international team analyzed tumor samples from nearly 500 domestic cats collected across five countries. They sequenced DNA from tissue samples previously collected by veterinarians for diagnostic purposes. The research found many of the same cancer-driving genes present in human and dog cancers. The FBXW7 gene was the most frequently altered gene in feline mammary tumors, with mutations appearing in more than half of the tumors studied.
Why this Matters to You
This research advances the 'One Medicine' approach, a collaborative strategy that encourages knowledge exchange between veterinary and medical researchers. The discovery of shared cancer-driving genes, like FBXW7, which is linked to poorer outcomes in human breast cancer, suggests that insights from feline health could potentially inform human cancer research and treatment strategies. The observation that certain chemotherapy drugs appeared to work better in cat mammary tumors carrying the mutated FBXW7 gene in tissue samples might lead to future investigations into more targeted therapies for both species.
What's Next
The findings provide a foundational genetic dataset for feline cancers, which could enable more precise diagnostics and treatment plans for cats in veterinary clinics. The international collaboration, which included institutions like the Wellcome Sanger Institute and the Ontario Veterinary College, is likely to continue exploring these shared genetic pathways. Further research may investigate whether the observed drug efficacy translates to improved outcomes in living animals, potentially benefiting both feline and human patients.