Kindred Companion Sciences Emerges from Stealth with CRISPR-Edited Beagles Showing No Detectable Dog Allergen

Kindred Companion Sciences unveils CRISPR-edited beagles that are free of the primary dog allergen Can f 1, opening new possibilities in allergy management and pet selection.

Kindred Companion Sciences has emerged from stealth with a study in The CRISPR Journal describing a CRISPR-Cas9 edit designed to remove Can f 1, the main dog allergen, from two female beagles, Alfie and Bailey. The company says the dogs, born in September 2024, have grown normally and shown no detectable Can f 1 in saliva or dander, the principal routes of human exposure.

The work builds on earlier allergy research. A 1997 study in Immunology identified Can f 1 and Can f 2 as salivary lipocalins, while later papers in Scientific Reports and The FEBS Journal mapped IgE-binding regions and key residues, helping explain why the protein provokes reactions. Separately, a 2016 study on service dogs found Can f 1 levels can vary between animals, underlining the appeal of reducing allergen output at source rather than relying on breed myths, including claims that poodles or goldendoodles are inherently hypoallergenic.

Kindred says whole-genome sequencing found no detectable off-target edits across sites analysed, and a skin-prick test in a sensitised individual reacted to unedited dog samples but not to the edited dogs. The company stresses that the animals are not for sale and that the edit remains investigational and unapproved by US regulators. It says welfare, temperament and long-term health will remain central as it develops the programme further.

Reference: Genomic Benchmarking Reveals Reduced and Context-Dependent Transferability of AI-Engineered Bxb1 Recombinases for Large-Fragment Genome Writing; Yi-Dan Sun et al
https://doi.org/10.1177/25731599261470587