DNA Damage and Repair in Vascular Disease
Related Experiment Video
Updated: Apr 1, 2026
Visualizing and Quantifying Endonuclease-Based Site-Specific DNA Damage
Published on: August 21, 2021
Anna Uryga1, Kelly Gray2, Martin Bennett1
1Division of Cardiovascular Medicine, University of Cambridge, Cambridge CB2 0QQ, United Kingdom; email: aku22@cam.ac.uk , mrb@mole.bio.cam.ac.uk.
Abstract:
DNA damage affecting both genomic and mitochondrial DNA is present in a variety of both inherited and acquired vascular diseases. Multiple cell types show persistent DNA damage and a range of lesions. In turn, DNA damage activates a variety of DNA repair mechanisms, many of which are activated in vascular disease. Such DNA repair mechanisms either stall the cell cycle to allow repair to occur or trigger apoptosis or cell senescence to prevent propagation of damaged DNA. Recent evidence has indicated that DNA damage occurs early, is progressive, and is sufficient to impair function of cells composing the vascular wall. The consequences of persistent genomic and mitochondrial DNA damage, including inflammation, cell senescence, and apoptosis, are present in vascular disease. DNA damage can thus directly cause vascular disease, opening up new possibilities for both prevention and treatment. We review the evidence for and the causes, types, and consequences of DNA damage in vascular disease.
Insights
DNA damage in genomic and mitochondrial DNA is a key factor in vascular diseases. Repair mechanisms attempt to fix this damage, but persistent issues lead to inflammation, senescence, and apoptosis, driving disease progression.
Area of Science:
- Cardiovascular Biology
- Molecular Biology
- Genetics
Background:
- Vascular diseases, both inherited and acquired, are characterized by DNA damage affecting genomic and mitochondrial DNA.
- Persistent DNA damage and various lesions are observed across multiple cell types within the vascular system.
Purpose of the Study:
- To review the evidence for DNA damage in vascular disease.
- To explore the causes, types, and consequences of DNA damage in the context of vascular pathologies.
Main Methods:
- Review of existing scientific literature and evidence regarding DNA damage and repair mechanisms in vascular diseases.
- Analysis of the role of DNA damage in cellular processes such as cell cycle arrest, apoptosis, and senescence.
Main Results:
- DNA damage is an early, progressive event in vascular disease, sufficient to impair vascular wall cell function.
- Activated DNA repair mechanisms, including cell cycle arrest, apoptosis, and senescence, are prevalent in vascular disease.
- Persistent genomic and mitochondrial DNA damage contribute to inflammation, cell senescence, and apoptosis in vascular disease.
Conclusions:
- DNA damage is a direct causative factor in vascular disease.
- Understanding DNA damage pathways opens new avenues for vascular disease prevention and treatment.
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