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Updated: Jul 13, 2026
07:30
Imaging Cleared Embryonic and Postnatal Hearts at Single-cell Resolution
Published on: October 7, 2016
Cardiovascular development and the colonizing cardiac neural crest lineage
Paige Snider1, Michael Olaopa, Anthony B Firulli
1Cardiovascular Development Group, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
Thescientificworldjournal
|July 11, 2007
Summary
Cardiac neural crest cells are crucial for heart development, influencing septation and potentially contributing to stem cell populations. Their precise roles in myocardial function and proliferation are still being uncovered, with species-specific variations observed.
Area of Science:
- Developmental biology
- Cardiovascular research
- Genetics
Background:
- Cardiac neural crest cells (CNCCs) are known to cause congenital heart defects when their development is disrupted.
- Their migration and colonization of the pharyngeal arches and outflow tract are regulated by specific genes.
- Traditionally, CNCCs were thought to primarily aid in outflow tract septation.
Purpose of the Study:
- To review the current literature on the functional mechanisms of CNCCs in cardiovascular development.
- To explore the potential roles of CNCCs beyond outflow tract septation.
- To discuss the involvement of the Pax3 transcription factor in CNCC development and function.
Main Methods:
- Review of existing scientific literature on cardiac neural crest cells.
- Analysis of studies using transgenic manipulation and microsurgical removal of neural crest progenitors in various species (mouse, chick, Xenopus, zebrafish).
- Examination of data from genetically modified mouse models, such as the Pax3 (splotch) mutant.
Main Results:
- CNCCs may contribute to more than just outflow tract septation, potentially forming stem cell populations and contributing to heart valves and the conduction system.
- Ablation or genetic disruption of CNCCs negatively impacts myocardial function and cardiomyocyte proliferation.
- Evidence suggests CNCCs may secrete factors influencing myocardial growth or signal to the epicardium.
- Species-specific differences exist, with mouse and chick CNCCs showing more similarities than zebrafish.
Conclusions:
- CNCCs play multifaceted roles in cardiovascular development, including potential contributions to myocardial function and regeneration.
- Further research is needed to fully elucidate the mechanisms by which CNCCs influence heart development and function.
- The Pax3 transcription factor is a key player in neural crest development relevant to cardiovascular formation.
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