DNA damage, p53, apoptosis and vascular disease
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Published on: December 30, 2025
John Mercer1, Melli Mahmoudi, Martin Bennett
1Division of Cardiovascular Medicine, University of Cambridge, P.O. Box 110, Addenbrooke's Hospital, Cambridge CB2 2QQ, United Kingdom.
Abstract:
Atherosclerosis is the commonest cause of death in the Western world. The atherosclerotic plaque shows evidence of DNA damage, activation of damage repair pathways, p53 expression and apoptosis, involving a variety of different cell types. This review summarises the evidence for DNA damage in atherosclerosis, the likely stimuli inducing damage, and the increasing role of p53 in mediating apoptosis and its consequences in atherosclerosis.
Insights
DNA damage and repair are key in atherosclerosis, a leading cause of death. The p53 protein plays a crucial role in apoptosis within atherosclerotic plaques.
Area of Science:
- Cardiovascular Science
- Molecular Biology
- Cellular Biology
Background:
- Atherosclerosis is a primary cause of mortality globally.
- Atherosclerotic plaques exhibit DNA damage and activation of repair mechanisms.
- Cellular processes like p53 expression and apoptosis are implicated.
Purpose of the Study:
- To review evidence linking DNA damage to atherosclerosis.
- To identify potential stimuli causing DNA damage in atherosclerosis.
- To explore the role of p53 in apoptotic pathways within atherosclerotic lesions.
Main Methods:
- Literature review of studies on DNA damage in atherosclerosis.
- Analysis of research on stimuli inducing DNA damage.
- Examination of studies investigating p53 function and apoptosis in atherosclerosis.
Main Results:
- Substantial evidence supports the presence of DNA damage in atherosclerotic plaques.
- Various endogenous and exogenous factors are proposed as inducers of DNA damage.
- p53 is increasingly recognized for its role in mediating apoptosis, impacting plaque development and stability.
Conclusions:
- DNA damage is a significant factor in the pathogenesis of atherosclerosis.
- Understanding the stimuli and p53's role is crucial for therapeutic strategies.
- Targeting DNA damage and apoptosis pathways may offer new avenues for treating atherosclerosis.
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