Cat Cancer Study May Benefit Pets and People
Thursday, October 1, 2026179 words3 minutes2263 reads
An international team analyzed cancer tissue from almost 500 domestic cats in five countries. The scientists searched for genetic changes that help tumors begin and grow. They found that many cancer-driving genes in cats are also known in human and dog cancers.
One example came from mammary tumors, which grow in breast tissue. The most common driver gene in the cat tumors was FBXW7. More than half of the samples had a mutation in that gene. In people, a similar mutation in breast cancer is linked with a worse outlook.
The team also tested chemotherapy drugs on tumor samples. Some drugs worked better on cat mammary tissue with the FBXW7 mutation. This result came from tissue tests only; it does not show that the drugs will work in living cats or people.
Cats may still offer useful clues because they naturally develop cancer and often share homes and environmental exposures with people. The study could support more personalized treatment for pets and point scientists toward questions about human cancer. Any treatment benefit for either species will need further study.
