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Related Experiment Videos

Mouse autosomal trisomy: two's company, three's a crowd.

D Hernandez1, E M Fisher

  • 1Department of Neurogenetics, Imperial College School of Medicine (St Mary's), Norfolk Place, London, UK W2 1PG. d.hernandez@ic.ac.uk

Trends in Genetics : TIG
|June 4, 1999
PubMed
Summary

Autosomal trisomy, a leading cause of pregnancy loss, involves extra chromosomes. Researchers are using chromosome engineering in mice to pinpoint genes responsible for these lethal conditions.

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Area of Science:

  • Genetics and Developmental Biology
  • Human Reproductive Health

Background:

  • Autosomal trisomy is a major contributor to human pregnancy loss and lethality.
  • Trisomy syndromes exhibit distinct phenotypes, suggesting the influence of specific dosage-sensitive genes.
  • Identifying these critical genes is crucial for understanding and potentially mitigating these conditions.

Purpose of the Study:

  • To identify specific genes responsible for the deleterious effects of autosomal trisomies.
  • To leverage new genome-manipulation techniques for genetic analysis of trisomy syndromes.

Main Methods:

  • Utilizing classical genetic approaches.
  • Employing advanced chromosome engineering techniques in mouse models.
  • Creating precisely defined autosomal trisomies to study gene dosage effects.

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Main Results:

  • Established new routes for identifying dosage-sensitive genes in autosomal trisomies.
  • Demonstrated the utility of engineered mouse models for studying complex genetic disorders.

Conclusions:

  • Precisely defined autosomal trisomies in mice are a powerful tool for identifying critical genes.
  • This approach offers new avenues for understanding the genetic basis of common and lethal human syndromes.