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Large-scale Zebrafish Embryonic Heart Dissection for Transcriptional Analysis
Published on: January 12, 2015
Zebrafish as a Versatile Model for Cardiovascular Research: Peering into the Heart of the Matter
Ramcharan Singh Angom1, Meghna Singh2, Huzaifa Muhammad1,3
1Department of Biochemistry and Molecular Biology, Mayo Clinic, College of Medicine and Science, Jacksonville, FL 32224, USA.
Abstract:
Cardiovascular diseases (CVDs) are the leading cause of death in the world. A total of 17.5 million people died of CVDs in the year 2012, accounting for 31% of all deaths globally. Vertebrate animal models have been used to understand cardiac disease biology, as the cellular, molecular, and physiological aspects of human CVDs can be replicated closely in these organisms. Zebrafish is a popular model organism offering an arsenal of genetic tools that allow the rapid in vivo analysis of vertebrate gene function and disease conditions. It has a short breeding cycle, high fecundity, optically transparent embryos, rapid internal organ development, and easy maintenance. This review aims to give readers an overview of zebrafish cardiac biology and a detailed account of heart development in zebrafish and its comparison with humans and the conserved genetic circuitry. We also discuss the contributions made in CVD research using the zebrafish model. The first part of this review focuses on detailed information on the morphogenetic and differentiation processes in early cardiac development. The overlap and divergence of the human heart's genetic circuitry, structure, and physiology are emphasized wherever applicable. In the second part of the review, we overview the molecular tools and techniques available to dissect gene function and expression in zebrafish, with special mention of the use of these tools in cardiac biology.
Insights
Zebrafish offer valuable insights into cardiovascular diseases (CVDs) due to conserved cardiac biology and genetic tools. This review details zebrafish heart development and its utility in CVD research.
Area of Science:
- Cardiovascular Biology
- Developmental Biology
- Comparative Genomics
Background:
- Cardiovascular diseases (CVDs) are a leading global cause of mortality.
- Vertebrate animal models are crucial for understanding CVDs.
- Zebrafish serve as a powerful model organism for studying cardiac disease due to genetic accessibility and physiological similarities.
Purpose of the Study:
- To provide an overview of zebrafish cardiac biology.
- To detail zebrafish heart development and compare it with human cardiac development.
- To highlight the application of zebrafish in cardiovascular disease research.
Main Methods:
- Review of existing literature on zebrafish cardiac development and genetics.
- Comparative analysis of zebrafish and human cardiac systems.
- Discussion of molecular tools and techniques for zebrafish research.
Main Results:
- Zebrafish exhibit conserved genetic circuitry and developmental processes relevant to human cardiac biology.
- The zebrafish model allows for in vivo analysis of gene function in cardiac development and disease.
- Numerous genetic and molecular tools are available for studying zebrafish cardiac function.
Conclusions:
- Zebrafish are a highly effective model for investigating the genetic basis of cardiovascular diseases.
- Understanding conserved mechanisms in zebrafish aids in human CVD research.
- The zebrafish model facilitates the discovery of novel therapeutic targets for cardiovascular conditions.
