Scientists have used CRISPR gene editing to create hypoallergenic beagles by switching off a key allergy-causing protein in their saliva and hair. While it will take years to commercialize and assess long-term health effects, the breakthrough offers hope for allergy sufferers.
This breakthrough offers a potential solution for millions suffering from dog allergies, enabling more people to own pets. It also represents a significant advancement in gene editing applications for health and well-being.
Scientists have successfully created hypoallergenic beagles using CRISPR gene editing, a development that could offer a future option for individuals with dog allergies. The technique involved switching off the primary gene responsible for producing allergy-causing proteins in the dogs' saliva and hair.
Matt Walker, a geneticist involved in the project, can now interact with Bailey, one of the gene-edited beagles, without experiencing allergic reactions. The process, which took place at Kindred Companion Sciences, involved editing dog skin cells and then using the edited genetic code to create two female pups, Bailey and her twin Alfie, born in September 2024.
Initial allergy tests on Walker showed no reaction to extracts from Alfie and Bailey's saliva and dander, a stark contrast to his reactions to other breeds. This research marks the first time this gene-editing approach has been successfully applied to dogs, with scientists noting that all dogs share the same allergy-causing gene that was targeted.
However, experts caution that it will take years before such pets could be commercially available. Long-term health effects of the genetic tweak need to be monitored, and the approach must be made affordable. Bioethicist Arthur Caplan also raised concerns that this technology might discourage people from adopting shelter animals.
Researchers plan to test the technique on other dog breeds and service animals. Further studies will involve testing the gene-edited dogs on a broader range of people with pet allergies to confirm their effectiveness. The gene edit made to Alfie and Bailey is rare but occurs naturally in some dogs, suggesting it may not have negative health impacts, though continued monitoring is advised.