Commentary: Mechanisms of mitral valve development and disease
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By
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Giulio Calcagni
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Flaminia Pugnaloni
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Paolo Versacci
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Bruno Marino
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June 23, 2026
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Objective:
To explore the developmental mechanisms and pathologies associated with mitral valve (MV) disease, particularly in the context of genetic syndromes.
Approach:
Key Findings:
- Mitral valve disease is linked to embryologic mechanisms and genetic syndromes.
- Sonic Hedgehog signaling plays a crucial role in atrioventricular canal formation.
- MV abnormalities are increasingly recognized in RASopathies and other genetic syndromes.
- Mitral leaflet elongation in HCM may represent a primary disease phenotype.
Interpretation:
Limitations:
- The commentary does not provide new experimental data but synthesizes existing literature.
- Further research is needed to fully understand the implications of genetic syndromes on MV pathology.
Conclusion:
The commentary expands the framework for understanding MV disease by incorporating genetic and developmental contexts.
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