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Related Experiment Videos

[Genetically modified animal models in cardiovascular research].

F Dalloz1, H Osinska, J Robbins

  • 1Department of Pediatrics, Division of Molecular Cardiovascular Biology, Children's Hospital Research Foundation, Cincinnati, USA.

Revista Espanola De Cardiologia
|June 20, 2001
PubMed
Summary

Altering the heart's protein complement using gene targeting and transgenesis allows researchers to study the functional impact of specific proteins. This approach helps define therapeutic targets for heart diseases by examining molecular and physiological consequences.

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Area of Science:

  • Molecular Medicine
  • Cardiovascular Biology
  • Genetics

Context:

  • Cellular and organ function are fundamentally determined by their specific protein complements.
  • Alterations in protein pools are observed during normal development and in various pathologies, particularly in the heart.
  • Congenital heart diseases exhibit distinct shifts in cardiac motor proteins.

Purpose:

  • To establish models for studying pathogenic processes longitudinally by directing the heart to stably synthesize candidate proteins.
  • To determine if a protein's presence directly or indirectly causes observed effects, aiming to identify potential therapeutic targets.
  • To understand the mechanism and function of different mutated proteins and protein isoforms by precisely altering the heart's protein complement.

Summary:

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  • Gene targeting and transgenesis in mice enable modification of the mammalian genome and cardiac motor protein complement.
  • Directing engineered protein expression to the heart allows for remodeling of the cardiac protein profile.
  • This enables the study of consequences of single genetic manipulations at multiple biological levels under normal and stress conditions.

Impact:

  • Provides a method to establish both mechanism and function of different mutated proteins and protein isoforms.
  • Facilitates the study of molecular, biochemical, cytological, and physiological consequences of genetic manipulation in the heart.
  • Aids in defining potential therapeutic targets for heart conditions by elucidating protein function in disease models.