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SMAD2 Mutations Are Associated with Arterial Aneurysms and Dissections
Dimitra Micha1, Dong-Chuan Guo2, Yvonne Hilhorst-Hofstee3
1Department of Clinical Genetics, Center for Connective Tissue Research, VU University Medical Center, Amsterdam, 1007, MB, The Netherlands.
Human Mutation
|August 7, 2015
Summary
Genetic variants in the SMAD2 gene are linked to arterial aneurysms and dissections. This discovery offers new insights into the TGF-β signaling pathway
Area of Science:
- Genetics
- Cardiovascular Biology
- Molecular Biology
Background:
- Arterial aneurysms and dissections are serious vascular conditions.
- The transforming growth factor-beta (TGF-β) signaling pathway is crucial for vascular integrity.
- Genetic factors are implicated in the pathogenesis of these vascular diseases.
Observation:
- Three families presented with arterial aneurysms and dissections.
- Pathogenic variants in the SMAD2 gene were identified in affected individuals.
- One SMAD2 variant occurred de novo in a proband.
Findings:
- SMAD2 variants are associated with arterial aneurysms and dissections.
- SMAD2 plays a significant role in the TGF-β signaling pathway relevant to vascular health.
- Structural similarity between SMAD2 and SMAD3 suggests related functions in cell signaling.
Implications:
- SMAD2 mutations represent a novel genetic cause of arterial aneurysms and dissections.
- Understanding SMAD2's role enhances knowledge of TGF-β pathway disorders.
- This research may inform future diagnostic and therapeutic strategies for vascular diseases.
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