Related Experiment Video
Updated: Aug 27, 2025

Author Spotlight: Deciphering the Role of ATM in Ataxia-Telangiectasia and the Associated Cerebellar Degeneration
Published on: December 27, 2024
DNA damage response signaling: A common link between cancer and cardiovascular diseases
Sepideh Nikfarjam1,2, Krishna K Singh1,2
1Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada.
Abstract:
DNA damage response (DDR) signaling ensures genomic and proteomic homeostasis to maintain a healthy genome. Dysregulation either in the form of down- or upregulation in the DDR pathways correlates with various pathophysiological states, including cancer and cardiovascular diseases (CVDs). Impaired DDR is studied as a signature mechanism for cancer; however, it also plays a role in ischemia-reperfusion injury (IRI), inflammation, cardiovascular function, and aging, demonstrating a complex and intriguing relationship between cancer and pathophysiology of CVDs. Accordingly, there are increasing number of reports indicating higher incidences of CVDs in cancer patients. In the present review, we thoroughly discuss (1) different DDR pathways, (2) the functional cross talk among different DDR mechanisms, (3) the role of DDR in cancer, (4) the commonalities and differences of DDR between cancer and CVDs, (5) the role of DDR in pathophysiology of CVDs, (6) interventional strategies for targeting genomic instability in CVDs, and (7) future perspective.
Insights
DNA damage response (DDR) pathways are crucial for maintaining genome stability. Dysregulation of DDR is linked to both cancer and cardiovascular diseases (CVDs), highlighting their interconnectedness.
Area of Science:
- Genomic instability and its role in human diseases.
- Molecular mechanisms of DNA damage response (DDR).
Background:
- DNA damage response (DDR) signaling maintains genomic and proteomic homeostasis.
- Dysregulation of DDR pathways is associated with cancer and cardiovascular diseases (CVDs).
- Impaired DDR is a hallmark of cancer and implicated in CVD pathophysiology.
Purpose of the Study:
- To review different DDR pathways and their cross-talk.
- To explore the role of DDR in cancer and CVDs.
- To discuss interventional strategies for genomic instability in CVDs.
Main Methods:
- Comprehensive literature review of DDR pathways.
- Analysis of functional cross-talk among DDR mechanisms.
- Examination of DDR's role in cancer and CVD pathophysiology.
Main Results:
- DDR pathways are essential for maintaining genome health.
- Altered DDR signaling is implicated in cancer and CVDs.
- There is a complex interplay between DDR, cancer, and CVDs.
Conclusions:
- DDR plays a critical role in both cancer and CVDs.
- Understanding DDR mechanisms offers potential therapeutic targets for CVDs.
- Further research is needed to explore interventional strategies for genomic instability in CVDs.
Related Concept Videos
DNA Damage can Stall the Cell Cycle
Nucleotide Excision Repair
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Overview of DNA Repair
Chemically...
DNA Damage Can Stall the Cell Cycle
Interactions Between Signaling Pathways
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Adaptive Mechanisms in Cancer Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...

