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Published on: February 15, 2022
Role of somatic mutations in vascular disease formation
Sarah M Weakley1, Jun Jiang, Panagiotis Kougias
1Michael E DeBakey Department of Surgery, Molecular Surgeon Research Center, Baylor College of Medicine, One Baylor Plaza, Mail Stop: BCM391, Houston, TX 77030, USA.
Insights
Somatic mutations in DNA may drive vascular diseases like atherosclerosis and Alzheimer's. Further research into genetic targets could lead to personalized genomic medicine for these conditions.
Area of Science:
- Cardiovascular Science
- Genetics
- Oncology
Background:
- Coronary artery disease, cerebrovascular disease, pulmonary artery hypertension, and Alzheimer's disease cause significant morbidity and mortality.
- Current treatments for these vascular diseases are limited.
- The hypothesis that vascular diseases are neoplastic processes, driven by somatic mutations, has been debated for decades.
Purpose of the Study:
- To investigate the role of somatic mutations in the development of vascular diseases.
- To explore the involvement of DNA damage, oxidative stress, and TGF-beta receptor signaling in atherogenesis.
- To identify potential genetic targets for future personalized genomic medicine.
Main Methods:
- Analysis of DNA damage and mutagenesis in genomic and mitochondrial DNA within atherosclerotic and vascular lesions.
- Examination of oxidative stress markers.
- Investigation of signaling pathways involving the TGF-beta receptor family.
Main Results:
- Evidence suggests that somatic mutations are involved in atherogenesis and vascular disease development.
- Mitochondrial DNA damage and oxidative stress are implicated in these processes.
- Specific genetic targets in disease pathogenesis are being identified.
Conclusions:
- Somatic mutations play a role in the pathogenesis of major vascular diseases.
- Understanding these genetic underpinnings is crucial for developing effective treatments.
- Genome sequencing advancements facilitate the search for personalized genomic medicine approaches for vascular diseases.
Abstract:
Coronary artery disease, cerebrovascular disease, pulmonary artery hypertension and Alzheimer's disease all lead to substantial morbidity and mortality, and we currently lack effective treatments for these vascular diseases. Since the discovery, decades ago, that atherosclerotic lesions display clonal growth, atherosclerosis and other vascular diseases have been postulated to be neoplastic processes, arising through a series of critical somatic mutations. There is conflicting evidence supporting this but studies of DNA damage and mutagenesis, both genomic and mitochondrial, in atherosclerotic and vascular lesions, have yielded evidence that somatic mutations are involved in atherogenesis and vascular disease development. The roles of mitochondrial DNA damage, oxidative stress and signaling by members of the TGF-beta receptor family are implicated. With the increasing convenience and cost-effectiveness of genome sequencing, it is feasible to continue to seek specific genetic targets in the pathogenesis of these devastating diseases, with the hope of developing personalized genomic medicine in the future.
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