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Mouse-based genetic modeling and analysis of Down syndrome
Zhuo Xing1, Yichen Li1, Annie Pao1
1The Children's Guild Foundation Down Syndrome Research Program, Genetics Program and Department of Cancer Genetics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA.
British Medical Bulletin
|October 30, 2016
Summary
New mouse models accurately mimic Down syndrome (DS) by engineering trisomy 21 (Ts21) in mice. These models aid in understanding DS pathogenesis and developing future therapies.
Area of Science:
- Genetics
- Developmental Biology
- Genomic Medicine
Background:
- Down syndrome (DS), caused by trisomy 21 (Ts21), serves as a key model for studying chromosomal aneuploidies.
- Human chromosome 21 (Hsa21) exhibits syntenic conservation with specific regions in the mouse genome, facilitating genetic modeling.
Purpose of the Study:
- To review recent advancements in genetic modeling and analysis of Down syndrome.
- To explore the utility of engineered mouse models for understanding DS.
Main Methods:
- Utilized Cre/loxP-mediated chromosome engineering to generate novel mouse models of DS.
- Leveraged evolutionary conservation to model Ts21 by engineering triplication of Hsa21 syntenic regions in mice.
Main Results:
- Generated a substantial number of new mouse models for DS research.
- Validated these models through the observation of DS-related phenotypes in engineered mice.
Conclusions:
- Engineered mouse models based on conserved syntenic regions offer a valid approach to study Ts21.
- Further research using these models, alongside human studies, is crucial for developing therapies for DS and understanding aneuploidies in other diseases.
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