Related Experiment Video
Updated: Jun 26, 2026
A Pipeline to Characterize Structural Heart Defects in the Fetal Mouse
Published on: December 16, 2022
Mouse models of congenital cardiovascular disease
1School of Medicine, University of Utah, Salt Lake City, UT 84112, USA.
Insights
Congenital heart defects affect nearly 1% of newborns. Mouse models are crucial for understanding the genetic basis of these defects and developing treatments for cardiovascular diseases.
Area of Science:
- Developmental Biology
- Genetics
- Cardiovascular Science
Background:
- Congenital heart defects (CHDs) impact ~1% of live births, often requiring surgical intervention.
- Genetic factors significantly contribute to both congenital and acquired cardiovascular diseases, some manifesting later in life.
- The mouse serves as a highly conserved model for studying human heart development and disease pathogenesis.
Purpose of the Study:
- To review current understanding of mammalian heart development using mouse models.
- To highlight the identification of critical genes and pathways in cardiovascular development through complementary mouse and human studies.
- To discuss the relevance of mouse studies for understanding human CHDs and lifelong cardiovascular health.
Main Methods:
- Analysis of mouse mutants exhibiting cardiovascular abnormalities.
- Comparative genomics and gene expression studies in mouse and human.
- Review of existing literature on heart development and disease.
Main Results:
- Numerous genes essential for cardiovascular development have been identified through mouse mutant studies.
- Complementary mouse and human research has elucidated key genes and pathways for normal heart development.
- Mouse models are instrumental in understanding the genetic underpinnings of CHDs and cardiovascular diseases.
Conclusions:
- Mouse models are invaluable for dissecting the genetic and molecular mechanisms of congenital heart defects.
- Understanding conserved pathways in mouse heart development offers insights into human cardiovascular health and disease.
- Continued research integrating mouse and human data is essential for advancing cardiovascular medicine.
Abstract:
Congenital heart defects occur in nearly 1% of human live births and many are lethal if not surgically repaired. In addition, the genetic contribution to congenital or acquired cardiovascular diseases that are silent at birth, but progress to cause significant disease in later life is being increasingly appreciated. Heart development and structure are highly conserved between mouse and human. The discoveries that are being made in this model system are highly relevant to understanding the pathogenesis of human heart defects whether they occus in isolation, or in the context of a syndrome. Many of the genes required for cardiovascular development were discovered fortuitously when early lethality or structural defects were observed in mouse mutants generated for other purposes, and relevant genes continue to be defined in this manner. Candidate genes for this process are being identified by their roles other species, or by their expression in pertinent tissues in mice. In this review, I will briefly summarize heart development as currently understood in the mouse, and then discuss how complementary studies in mouse and human have identified genes and pathways that are critical for normal cardiovascular development, and for maintaining the structure and function of this organ system throughout life.
