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Targeting the DNA double strand breaks repair for cancer therapy

Francesca Gullotta1, Elisabetta De Marinis, Paolo Ascenzi

  • 1Department of Biology, University Roma Tre, Viale Guglielmo Marconi 446, I-00146 Roma, Italy.

Current Medicinal Chemistry
|April 29, 2010
PubMed

Insights

DNA double-strand breaks (DSBs) are harmful lesions. Understanding the DNA damage response (DDR), including repair mechanisms and BRCA1

Area of Science:

  • Molecular Biology
  • Genetics
  • Oncology

Background:

  • DNA double-strand breaks (DSBs) represent a critical type of DNA damage.
  • Failure in the DNA damage response (DDR) can lead to cancer development.
  • Targeting DDR proteins offers a strategy for selective cancer cell eradication.

Purpose of the Study:

  • To provide an overview of the cellular response to DSBs.
  • To highlight the roles of repair mechanisms, chromatin modifications, and BRCA1 in genome integrity.
  • To review DSB enzyme inhibitors as potential anti-cancer therapeutics.

Main Methods:

  • Literature review of DNA double-strand break repair pathways.
  • Analysis of the role of chromatin in DNA damage response.
  • Survey of inhibitors targeting DSB repair enzymes.

Main Results:

  • DSBs trigger a complex DDR involving multiple repair pathways.
  • BRCA1 plays a crucial role in maintaining genome stability.
  • Several DSB enzyme inhibitors are under investigation for cancer therapy.

Conclusions:

  • Targeting DSB repair pathways, particularly those involving BRCA1, is a promising avenue for cancer treatment.
  • Combination therapies involving DNA repair inhibitors may enhance the efficacy of chemotherapy and radiotherapy.
  • Further research into DSB repair mechanisms and inhibitors is essential for developing novel anti-cancer strategies.

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