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The Role of Cell Tracing and Fate Mapping Experiments in Cardiac Outflow Tract Development, New Opportunities through
Joshua C Peterson1, Tim P Kelder1, Marie José T H Goumans2
1Department Anatomy & Embryology, Leiden University Medical Center, 2300RC Leiden, The Netherlands.
Insights
Understanding congenital heart disease (CHD) requires exploring cardiac outflow tract (OFT) development. New cell tracing technologies offer insights into OFT pathologies and their varied phenotypes.
Area of Science:
- Developmental biology
- Cardiovascular research
- Pathophysiology
Background:
- Congenital heart disease (CHD) pathophysiology is increasingly understood, yet cardiac outflow tract (OFT) development remains unclear.
- Common CHDs affecting the OFT, including bicuspid aortic valve and tetralogy of Fallot, exhibit significant phenotypic variation.
- Existing knowledge of cell lineages in OFT development struggles to explain observed morphologic variations in pathologies.
Purpose of the Study:
- To review historical and emerging cell lineage tracing techniques for studying OFT development.
- To bridge the knowledge gap concerning cell lineage dynamics in OFT pathologies.
- To enhance understanding of cellular dynamics underlying OFT variations in congenital heart disease.
Main Methods:
- Review of historical cell lineage analysis techniques (fate mapping, cell tracing).
- Introduction of novel experimental technologies for cell lineage analysis.
- Correlation of cell lineage dynamics with morphologic variations in OFT pathologies.
Main Results:
- Historical methods have limitations in elucidating cell lineage contributions to OFT development.
- Emerging technologies offer improved resolution for studying cell dynamics.
- Potential link identified between cell lineage dynamics and phenotypic variation in OFT diseases.
Conclusions:
- Technical limitations in cell lineage analysis hinder understanding of OFT developmental pathologies.
- Advanced cell tracing technologies are crucial for deciphering OFT development and disease.
- Further research using new methods will clarify cellular dynamics in congenital heart disease phenotypes.
Abstract:
Whilst knowledge regarding the pathophysiology of congenital heart disease (CHDs) has advanced greatly in recent years, the underlying developmental processes affecting the cardiac outflow tract (OFT) such as bicuspid aortic valve, tetralogy of Fallot and transposition of the great arteries remain poorly understood. Common among CHDs affecting the OFT, is a large variation in disease phenotypes. Even though the different cell lineages contributing to OFT development have been studied for many decades, it remains challenging to relate cell lineage dynamics to the morphologic variation observed in OFT pathologies. We postulate that the variation observed in cellular contribution in these congenital heart diseases might be related to underlying cell lineage dynamics of which little is known. We believe this gap in knowledge is mainly the result of technical limitations in experimental methods used for cell lineage analysis. The aim of this review is to provide an overview of historical fate mapping and cell tracing techniques used to study OFT development and introduce emerging technologies which provide new opportunities that will aid our understanding of the cellular dynamics underlying OFT pathology.
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