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Published on: December 14, 2015
Notch: a mastermind of vascular morphogenesis
Leonard M Anderson1, Gary H Gibbons
1Cardiovascular Research Institute, Morehouse School of Medicine, Atlanta, Georgia 30310, USA.
Insights
Understanding how diverse cell types form complex blood vessels is crucial for congenital cardiovascular disease research. A new model highlights Notch signaling in neural crest cells as vital for cardiovascular structure.
Area of Science:
- Cardiovascular Biology
- Developmental Biology
- Genetics
Background:
- The intricate 3D organization of blood vessels by multiple cell types remains poorly understood.
- Congenital cardiovascular diseases arise from genetic variants affecting complex spatiotemporal interactions during vascular development.
- Murine models and human genetics are advancing our understanding of vascular disease phenotypes.
Discussion:
- The study by High et al. introduces a novel model system for congenital cardiovascular disease.
- This model system replicates key clinical features of vascular anomalies.
- It specifically investigates the role of the Notch signaling pathway in neural crest cells.
Key Insights:
- The Notch signaling pathway, particularly within neural crest cells, is identified as a critical determinant of cardiovascular structure.
- This research provides a mechanistic link between neural crest development and heart formation.
- The findings offer new perspectives on the etiology of congenital heart defects.
Outlook:
- Further research using this model system can elucidate the precise mechanisms of vascular patterning.
- Insights gained may lead to improved diagnostic tools and therapeutic strategies for congenital cardiovascular diseases.
- The convergence of murine models and human genetics promises accelerated discovery in vascular biology.
Abstract:
The way in which multiple cell types organize themselves into a carefully sculpted, 3D labyrinth of vessels that regulate blood flow throughout the body has been a longstanding mystery. Clinicians familiar with congenital cardiovascular disease recognize how genetic variants and modest perturbations in this complex set of spatiotemporal interactions and stochastic processes can result in life-threatening anomalies. Although the mystery is not yet fully solved, we are poised at an exciting juncture, as insights from murine disease models are converging with advances in human genetics to shed new light on puzzling clinical phenotypes of vascular disease. The study by High et al. in this issue of the JCI establishes a model system that mimics clinical features of congenital cardiovascular disease and further defines the role of the Notch signaling pathway in the neural crest as an essential determinant of cardiovascular structure (see the related article beginning on page 353).
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