Related Experiment Video
Updated: Jun 20, 2026

Advanced Confocal Microscopy Techniques to Study Protein-protein Interactions and Kinetics at DNA Lesions
Published on: November 12, 2017
Chapter 6. Application of new methods for detection of DNA damage and repair
Maria P Svetlova1, Liudmila V Solovjeva, Nikolai V Tomilin
1Institute of Cytology, Russian Academy of Sciences, St Petersburg, Russian Federation.
Abstract:
New methods for detecting DNA damage and repair are reviewed and their potential significance is discussed. These include methods based on analysis of DNA damage-induced chromatin modifications, cytological detection of DNA repair synthesis, damage-induced immobilization of repair proteins and living cell imaging. Special attention is paid to current methods of detection of modifications of histones and other proteins associated with DNA double-strand breaks which represent most dangerous genome damage. New methods of analysis of DNA damage and repair may be useful in biodosimetry, early cancer diagnostics and in the analysis of efficiency of cancer radiation therapy and chemotherapy.
Insights
New methods for detecting DNA damage and repair offer significant advancements. These techniques aid in biodosimetry, early cancer detection, and evaluating cancer treatment efficacy.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- DNA damage poses a significant threat to genome integrity.
- Accurate detection of DNA damage and repair is crucial for understanding cellular responses and disease progression.
- Existing methods have limitations in sensitivity and scope.
Purpose of the Study:
- To review and discuss novel methods for detecting DNA damage and repair.
- To highlight the significance of these new methods in various applications.
- To focus on advanced techniques for identifying DNA double-strand breaks and associated protein modifications.
Main Methods:
- Analysis of DNA damage-induced chromatin modifications.
- Cytological detection of DNA repair synthesis.
- Damage-induced immobilization of repair proteins.
- Living cell imaging techniques.
- Detection of histone and protein modifications linked to DNA double-strand breaks.
Main Results:
- Emerging methods provide enhanced sensitivity and specificity for DNA damage detection.
- These techniques allow for real-time monitoring of DNA repair processes.
- Advanced analysis of protein modifications offers insights into the mechanisms of DNA repair.
Conclusions:
- New DNA damage and repair detection methods hold significant potential for biodosimetry.
- These advancements can improve early cancer diagnostics.
- The methods are valuable for assessing the effectiveness of cancer radiation and chemotherapy.
Related Concept Videos
Overview of DNA Repair
Chemically...
Overview of DNA Repair
Chemically...
DNA Damage can Stall the Cell Cycle
Fixing Double-strand Breaks
Fixing Double-strand Breaks
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...

