The interplay between chromatin remodeling and DNA double-strand break repair: Implications for cancer biology and therapeutics
Related Experiment Video
Updated: May 31, 2025

Characterizing DNA Repair Processes at Transient and Long-lasting Double-strand DNA Breaks by Immunofluorescence Microscopy
Published on: June 8, 2018
Liujun He1, Jaeyoung Moon2, Chenghui Cai1
1College of Biology, Hunan University, Changsha 410082, China.
Abstract:
Proper chromatin remodeling is crucial for many cellular physiological processes, including the repair of DNA double-strand break (DSB). While the mechanism of DSB repair is well understood, the connection between chromatin remodeling and DSB repair remains incompletely elucidated. In this review, we aim to highlight recent studies demonstrating the close relationship between chromatin remodeling and DSB repair. We summarize the impact of DSB repair on chromatin, including nucleosome arrangement, chromatin organization, and dynamics, and conversely, the role of chromatin architecture in regulating DSB repair. Additionally, we also summarize the contribution of chromatin remodeling complexes to cancer biology through DNA repair and discuss their potential as therapeutic targets for cancer.
Insights
Chromatin remodeling significantly impacts DNA double-strand break (DSB) repair by influencing nucleosome arrangement and chromatin organization. This review explores this relationship and its implications for cancer therapy.
Area of Science:
- Molecular Biology
- Genetics
- Cell Biology
Background:
- Chromatin remodeling is vital for cellular processes, including DNA double-strand break (DSB) repair.
- The intricate relationship between chromatin remodeling and DSB repair mechanisms requires further elucidation.
Purpose of the Study:
- To review recent findings on the interplay between chromatin remodeling and DSB repair.
- To summarize how DSB repair affects chromatin structure and dynamics.
- To highlight the role of chromatin architecture in regulating DSB repair.
Main Methods:
- Literature review of recent studies.
- Synthesis of research on chromatin remodeling complexes.
- Analysis of DNA repair pathways and chromatin dynamics.
Main Results:
- DSB repair influences nucleosome arrangement, chromatin organization, and dynamics.
- Chromatin architecture plays a regulatory role in DSB repair processes.
- Chromatin remodeling complexes are implicated in cancer biology via DNA repair.
Conclusions:
- A strong link exists between chromatin remodeling and DSB repair.
- Understanding this connection offers insights into cancer development.
- Chromatin remodeling complexes present potential therapeutic targets for cancer treatment.
Related Concept Videos
Fixing Double-strand Breaks
Nucleosome Remodeling
Nucleosome remodeling complex
Eukaryotic cells have specialized enzymes called ATP-dependent nucleosome remodeling enzymes. These enzymes...
Homologous Recombination
DNA Damage can Stall the Cell Cycle
Overview of DNA Repair
Chemically...
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...

