Genetics of Cardiovascular Disease: Fishing for Causality

Area of Science:

• Genetics
• Cardiovascular Biology
• Zebrafish Models

Background:

• Cardiovascular disease (CVD) remains a leading cause of mortality globally.
• Genetic predisposition, alongside traditional risk factors, significantly influences CVD development.
• Genome-wide association (GWA) studies identify numerous genetic loci linked to CVD, but require functional validation.

Purpose of the Study:

• To review the application of functional genomics in zebrafish for validating GWA study findings.
• To highlight the identification of novel cardiovascular disease genes using experimental models.
• To emphasize the utility of zebrafish in dissecting the genetic underpinnings of CVD.

Main Methods:

• Utilizing functional genomic approaches, including gene knock-down and CRISPR/Cas9 genome editing in zebrafish.
• Employing zebrafish as an *in vivo* model system to study disease-associated genomic loci.
• Integrating GWA study data with experimental validation in zebrafish.

Main Results:

• Demonstrated the effectiveness of zebrafish functional genomics in confirming the relevance of genetic loci associated with CVD.
• Showcased the identification of novel genes implicated in cardiovascular pathogenesis.
• Highlighted the advantages of zebrafish for cardiovascular research and genetic studies.

Conclusions:

• Functional genomics in zebrafish provides a powerful platform for validating genetic associations in CVD.
• This approach is crucial for identifying causative genes and understanding molecular mechanisms of cardiovascular diseases.
• The zebrafish model significantly advances research into the genetic and molecular basis of CVD.