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Updated: Sep 30, 2025

Visualizing and Quantifying Endonuclease-Based Site-Specific DNA Damage
Published on: August 21, 2021
Cyclin-dependent kinases in DNA damage response
Mateusz Kciuk1, Adrianna Gielecińska2, Somdutt Mujwar3
1Department of Molecular Biotechnology and Genetics, Laboratory of Cytogenetics, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland; University of Lodz, Doctoral School of Exact and Natural Sciences, Banacha Street 12/16, 90-237 Lodz, Poland.
Abstract:
The cyclin-dependent kinase (CDK) family plays a critical role in a variety of signaling pathways that regulate transcription and cell-cycle progression. Recently, the role of CDKs in DNA damage response (DDR) has emerged. CDKs affect both damage signaling and DNA repair, contributing to the fidelity of the cell division process as well as the maintenance of genomic integrity following DNA damage. This is due to the modulatory role of CDKs on double-strand break repair (DSBR) components, including their influence on enzymes involved in homologous recombination (HR) and non-homologous end-joining (NHEJ). In this review, the impact of CDKs on DDR and DNA repair is discussed.
Insights
Cyclin-dependent kinases (CDKs) are crucial for DNA damage response and repair. This review explores how CDKs modulate key repair pathways, ensuring genomic integrity after DNA damage.
Area of Science:
- Molecular Biology
- Cell Biology
- Genetics
Background:
- Cyclin-dependent kinases (CDKs) regulate fundamental cellular processes including transcription and cell-cycle progression.
- Emerging research highlights the significant role of CDKs in the DNA damage response (DDR).
Purpose of the Study:
- To review the impact of CDK family members on DNA damage response (DDR) pathways.
- To discuss the modulatory role of CDKs in DNA repair mechanisms, specifically double-strand break repair (DSBR).
Main Methods:
- Literature review of studies investigating CDK involvement in DDR.
- Analysis of CDK influence on DNA repair enzymes and pathways, including homologous recombination (HR) and non-homologous end-joining (NHEJ).
Main Results:
- CDKs significantly affect both the signaling and repair phases of the DDR.
- CDKs modulate key enzymes involved in homologous recombination (HR) and non-homologous end-joining (NHEJ) for double-strand break repair (DSBR).
Conclusions:
- CDKs are integral to maintaining genomic integrity following DNA damage.
- Understanding CDK functions in DDR is crucial for comprehending cell division fidelity and genome stability.
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