ArticleFrontiers in veterinary science2025
Urothelial genotoxicity of household chemicals in healthy canine urinary bladder organoids relative to observed urinary exposures in pet dogs.
Article in Frontiers in veterinary science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- New Frontiers of Drug Development Through the Use of New Approach Methodologies.The AAPS journal · 2026Review
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Authors and funding
5 authors.
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Abstract
Introduction: Urothelial carcinoma (UC) in pet dogs closely resembles human muscle-invasive UC, which is associated with environmental chemical carcinogens. The aim of this study was to determine whether urinary concentrations of the bladder carcinogens acrolein, inorganic arsenic, and 2,6-dimethylaniline (2,6-DMA) reach genotoxic concentrations in pet dogs with and without UC. Methods: We first established thresholds for DNA damage from these chemicals using a novel Results: For acrolein, we found a genotoxic threshold of 20 uM for combined DNA strand breaks and oxidative DNA damage. These findings suggest potentially genotoxic urinary acrolein exposures in 20% of pet dogs (15 of 74) previously surveyed, with no differences between cases and controls. For inorganic arsenic, we observed genotoxicity at 20 uM in canine organoids; none of 74 pet dogs reached this urinary concentration when assayed at a single time point. For 2,6-DMA, the genotoxic threshold was 0.01 uM for combined DNA strand breaks and oxidative DNA damage. Among dogs previously surveyed, 8% of UC cases (3 of 37) and none of 36 controls reached this threshold ( Conclusion: Acrolein and 2,6-DMA could reach genotoxic urinary concentrations after household exposures in some pet dogs, and the role of 2,6-DMA in canine bladder cancer risk deserves assessment in a larger sample size.
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