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Targeting DNA damage and repair: embracing the pharmacological era for successful cancer therapy

K Aziz1, S Nowsheen, G Pantelias

  • 1Department of Radiation Oncology & Molecular Radiation Sciences, Johns Hopkins School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21231, USA.

Pharmacology & Therapeutics
|December 27, 2011
PubMed

Insights

Cells constantly repair DNA damage from genotoxic agents to prevent cancer. This review covers DNA damage types, repair pathways, detection methods, and potential therapeutic targets for cancer treatment.

Area of Science:

  • Molecular Biology
  • Genetics
  • Cancer Research

Background:

  • DNA is continuously damaged by genotoxic agents, necessitating robust cellular repair mechanisms.
  • Genome integrity and accurate replication are vital for cell survival and preventing cancer.
  • Failure in DNA repair can trigger cell cycle arrest or apoptosis, impacting disease development.

Purpose of the Study:

  • To review sources and types of DNA damage, including replication and oxidative stress.
  • To discuss cellular DNA repair pathways and their biological significance in carcinogenesis.
  • To explore methodologies for DNA damage detection and their limitations.

Main Methods:

  • Literature review of DNA damage sources, types, and repair mechanisms.
  • Analysis of cell cycle checkpoints and apoptosis in response to DNA damage.
  • Evaluation of current techniques for detecting DNA damage.

Main Results:

  • Identified various genotoxic agents causing DNA damage.
  • Detailed diverse DNA repair pathways and their roles in maintaining genome stability.
  • Assessed strengths and limitations of current DNA damage detection methodologies.

Conclusions:

  • Understanding DNA damage and repair is crucial for cancer induction and therapy.
  • Novel pharmacological targets for DNA repair pathways can enhance cancer treatment.
  • Developing DNA damage enhancers offers improved therapeutic strategies for cancer patients.

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