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Updated: Feb 9, 2026

In Vivo Functional Study of Disease-associated Rare Human Variants Using Drosophila
Published on: August 20, 2019
Canine models of human rare disorders
Marjo K Hytönen1, Hannes Lohi1
1Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland; Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland; The Folkhälsan Institute of Genetics, Helsinki, Finland.
Canine models offer valuable insights into rare developmental disorders in children. Studying these genetic conditions in dogs aids rare disease research and intervention strategies.
Area of Science:
- Genetics
- Comparative Medicine
- Developmental Biology
Background:
- Millions of children are born with rare developmental disorders annually.
- Molecular identification of these conditions is advancing, but pathophysiology remains challenging.
- Lack of patient material and suitable animal models hinders research.
Purpose of the Study:
- To highlight the utility of canine models for studying human rare developmental disorders.
- To demonstrate the pathophysiological similarities between human and canine genetic syndromes.
- To advocate for collaborative research on human and canine rare diseases.
Main Methods:
- Identification and characterization of spontaneous genetic disorders in dogs.
- Comparative analysis of canine models with human rare disease counterparts.
- Utilizing canine models for experimental research and intervention studies.
Main Results:
- Canine models for human Caffey, van den Ende-Gupta, and Raine syndromes were identified.
- These canine models exhibit pathophysiological similarities to their human counterparts.
- Canine models provide access to crucial research resources, including live animals.
Conclusions:
- Dogs serve as physiologically relevant large animal models for rare developmental disorders.
- Joint research efforts on human and canine rare diseases can accelerate scientific advancement.
- Canine models facilitate the discovery of new candidate genes and enable intervention research.
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