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Written by Paul
Dr Paul Manktelow is a vet who’s worked for almost 20 years on the front line in some of the UK’s busiest veterinary hospitals. As Chief Vet in the Charity Sector, he leads a team of vets and nurses that treat thousands of pets every year. Paul also appears regularly in the media as a TV and radio presenter, writer, public speaker and podcast producer.
The idea that your cat could help scientists better understand human cancer sounds like the beginning of a rather ambitious headline. Yet emerging research into the genetics of cancer is revealing some fascinating similarities between the diseases that affect humans and those that develop naturally in our pets.
Recent research has identified similarities in cancer-driving genetic mutations found in cats and humans, including changes involving a particularly important gene called TP53. It doesn’t mean that feline and human cancers are identical, nor that cats are suddenly going to provide us with a cure for cancer. What it does suggest is that studying naturally occurring disease across different species could help us understand some of the fundamental processes that allow cancers to develop.
And that could be valuable for both human and veterinary medicine.
The ‘Guardian of the Genome’
At the centre of this research is TP53, sometimes described as the “guardian of the genome”. In simple terms, the gene plays an important role in controlling how cells grow and divide. It is involved in responding to damaged DNA and can help prevent abnormal cells from continuing to multiply.
When TP53 is mutated, some of those protective mechanisms can fail, allowing abnormal cells to grow and potentially contribute to the development and progression of cancer.
What makes the recent research particularly interesting is that mutations affecting important tumour-suppressing pathways such as TP53 are not exclusive to human cancer. Similar changes can occur in cancers developing naturally in cats, suggesting that some of the underlying biology of cancer may be shared across species.
That opens up an intriguing scientific question. If some of the same biological processes are involved, could understanding cancer in one species help us better understand it in another?
Why Are Scientists Interested in Cats?
One of the reasons cats are particularly interesting to researchers is remarkably simple: they live alongside us.
They share our homes and environments and can encounter some of the same environmental exposures. Crucially, the cancers being studied develop naturally rather than being deliberately created as part of an experimental model.
This forms part of a growing field known as comparative oncology, which studies cancer across different species. Rather than treating human and veterinary cancer as entirely separate subjects, researchers look for similarities and differences that might improve our understanding of disease in both.
In theory, identifying shared biological pathways could help researchers better understand how cancers develop, identify potential treatment targets or recognise genetic markers that may eventually support earlier diagnosis. Equally, discoveries made within human oncology may provide new opportunities for treating cancer in veterinary patients.
The potential is therefore genuinely exciting, but it needs to be kept in perspective.
An Insight, Not a Cure
Sharing an important genetic mutation does not mean that cancer behaves identically in cats and humans. There are significant differences between species, including physiology, immune responses, lifespan and patterns of disease progression. A finding in a cat therefore cannot simply be transferred directly into human medicine, or vice versa.
This is something I explore in more depth in an episode of The Consult Room, where I look at the science behind the research, why naturally occurring cancers in cats are attracting interest and what comparative oncology could mean for the future of both veterinary and human medicine.
🎧 Listen to Could Your Cat Help Unlock Cancer Research? on Spotify.
The important thing is not to turn an interesting scientific discovery into a promise it cannot yet fulfil. This research isn’t a breakthrough in the sense of producing a new cancer treatment tomorrow. It is another piece of a very complicated puzzle.
But scientific progress is often built from exactly these kinds of insights. Understanding where diseases overlap across species may reveal biological patterns that we would otherwise miss, and that makes comparative oncology a fascinating area to watch.
Our cats may not hold the cure for cancer. But the diseases they develop naturally could help us understand cancer a little better, and ultimately that knowledge has the potential to benefit animals and people alike.
