Cited by 58Down syndrome and intellectual disability researchGenetics and Neurodevelopmental DisordersWilliams Syndrome Research

Ts66Yah, a mouse model of down syndrome with improved construct and face validity

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Duchon, Arnaud, del Mar Muñiz Moreno, Maria, Chevalier, Claire, Nalesso, Valérie, Andre, Philippe, Fructuoso-Castellar, Marta, Mondino, Mary, Po, Chrystelle +4 more·2022·Disease Models & Mechanisms

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Abstract

Down syndrome (DS) is caused by trisomy of human chromosome 21 (Hsa21). The understanding of genotype–phenotype relationships, the identification of driver genes and various proofs of concept for therapeutics have benefited from mouse models. The premier model, named Ts(1716)65Dn/J (Ts65Dn), displayed phenotypes related to human DS features. It carries an additional minichromosome with the Mir155 to Zbtb21 region of mouse chromosome 16, homologous to Hsa21, encompassing around 90 genes, fused to the centromeric part of mouse chromosome 17 from Pisd-ps2/Scaf8 to Pde10a, containing 46 genes not related to Hsa21. Here, we report the investigation of a new model, Ts66Yah, generated by CRISPR/Cas9 without the genomic region unrelated to Hsa21 on the minichromosome. As expected, Ts66Yah replicated DS cognitive features. However, certain phenotypes related to increased activity, spatial learning and molecular signatures were changed, suggesting genetic interactions between the Mir155-Zbtb21 and Scaf8-Pde10a intervals. Thus, Ts66Yah mice have stronger construct and face validity than Ts65Dn mice for mimicking consequences of DS genetic overdosage. Furthermore, this study is the first to demonstrate genetic interactions between triplicated regions homologous to Hsa21 and others unrelated to Hsa21. This article has an associated First Person interview with the first author of the paper.

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  1. Sawiak, S. J., Wood, N. I., Williams, G. B., Morton, A. J. and Carpenter, T. A. (2009). SPMMouse: A new toolbox for SPM in animal brain. Proc. Int. Soc. Mag. Res. Med. 17, 1086.

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Authors
Duchon, A., del Mar Muñiz Moreno, M., Chevalier, C., Nalesso, V., Andre, P., Fructuoso-Castellar, M., Mondino, M., Po, C., Noblet, V., Birling, M.-C., Potier, M.-C., & Herault, Y.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • Université de Strasbourg, CNRS, INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC) 1 , Department of Translational Medicine and Neurogenetics, 1 rue Laurent Fries, 67404 Illkirch-Graffenstaden , France
  • Université de Strasbourg, CNRS, INSERM, CELPHEDIA, PHENOMIN-Institut Clinique de la Souris (ICS) 2 , 1 rue Laurent Fries, 67404 Illkirch-Graffenstaden , France
  • Paris Brain Institute ICM, Hôpital de la Pitié-Salpêtrière 3 , 75013 Paris , France
Venue
Disease Models & Mechanisms
Published
2022-12-01
Volume
15
Issue
12
Pages
dmm049721
ISSN
  • 1754-8403 (ISSN-L)
  • 1754-8411
OpenAlex
W4308954859
Cited by
58
References
72
Citations by year
2026: 14 · 2025: 14 · 2024: 14 · 2023: 13 · 2022: 3
FWCI
9.71
Type
journal article
Language
en
Open access
Locations
  • Disease Models & Mechanisms (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Sisley-d'Ornano Foundation
  • Fondation Jérôme Lejeune
  • Centre National de la Recherche Scientifique
  • Institut National de la Santé et de la Recherche Médicale
  • Université de Strasbourg
  • Agence Nationale de la Recherche (ANR-10-IDEX-0002, ANR-18-CE16-0020, ANR-17-JPCD-0003, ANR-10-IDEX-0002-02, ANR-17-EURE-0023, ANR 20-SFRI-0012)
  • Horizon 2020 Framework Programme (GO-DS21 848077)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Down syndrome and intellectual disability research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Neuroscience › Developmental Neuroscience › Williams Syndrome Research
Keywords
Down syndrome, Ts65Dn mouse model, mouse chromosome 16, genetic interactions, construct validity, face validity, cognitive phenotypes, spatial learning, genotype-phenotype correlation
MeSH terms
Animals, Down Syndrome, Humans, Phosphoric Diester Hydrolases, Mice

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