Journal
PEDIATRIC CARDIOLOGY
Volume 31, Issue 3, Pages 408-413Publisher
SPRINGER
DOI: 10.1007/s00246-009-9611-2
Keywords
Congenital heart disease; Notch; Outflow tract; Neural crest; Second heart field
Categories
Funding
- NHLBI NIH HHS [P01 HL075215-05, P01 HL075215, R01 HL095634] Funding Source: Medline
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The heart forms as a linear heart tube that loops and septates to produce a mature four-chambered structure. The single vessel emerging from the embryonic heart, the truncus arteriosus, divides into the aorta and the pulmonary artery as part of this septation process, and a series of additional morphogenetic events result in the proper alignment and orientation of the cardiac outflow tract. Recent evidence indicates that this process involves the complex interactions of multiple cell types including primary and secondary heart fields, neural crest, pharyngeal mesenchyme, endoderm, and endothelium. Among the many signals that mediate tissue-tissue interactions during the formation of the outflow tract, we have focused on the role of the Notch signaling pathway. Here, we focus on recent advances in our understanding of Notch-mediated regulation of cardiac development with specific attention to the formation of the cardiac outflow tract.
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