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Updated: May 9, 2026

Visualizing and Quantifying Endonuclease-Based Site-Specific DNA Damage
Published on: August 21, 2021
The accumulation of DNA repair defects is the molecular origin of carcinogenesis
1Department of Life Science, Sogang University, Seoul, 120-742, Republic of Korea.
Abstract:
Genomic instability has been considered to be one of the prominent factors for carcinogenesis and the development of a number of degenerative disorders, predominantly related to the aging. The cellular machineries involved in the maintenance of genomic integrity such as DNA repair and DNA damage responses are extensively characterized by a large number of studies. The failure of proper actions of such cellular machineries may lead to the devastating effects mostly inducing cancer or premature aging, even with no acute exogenous DNA damage stimuli. In this review, we especially focus on the pathophysiological aspects of the defective DNA damage responses in carcinogenesis and premature aging. Clear understanding the causes of carcinogenesis and age-related degenerative diseases will provide novel and efficient approaches for prevention and rational treatment of cancer and premature aging.
Insights
Genomic instability, caused by faulty DNA damage responses, drives cancer and premature aging. Understanding these defects offers new strategies for preventing and treating these conditions.
Area of Science:
- Genetics
- Molecular Biology
- Pathophysiology
Background:
- Genomic instability is a key factor in cancer and aging.
- Cellular mechanisms like DNA repair and damage responses maintain genomic integrity.
- Failures in these mechanisms can cause cancer or premature aging.
Purpose of the Study:
- To review the pathophysiological aspects of defective DNA damage responses.
- To explore the link between DNA damage response failures, carcinogenesis, and premature aging.
Main Methods:
- Literature review focusing on pathophysiological mechanisms.
- Analysis of studies on DNA repair and damage response pathways.
Main Results:
- Defective DNA damage responses are implicated in both cancer development and premature aging.
- Failures can occur even without external DNA damage triggers.
- These defects lead to significant cellular dysfunction.
Conclusions:
- Understanding the causes of defective DNA damage responses is crucial.
- This knowledge can lead to novel prevention and treatment strategies for cancer and age-related diseases.
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