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Targeting abnormal DNA double strand break repair in cancer

Feyruz V Rassool1, Alan E Tomkinson

  • 1Department of Radiation Oncology, Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, 655 West Baltimore Street, Baltimore, MD 21201, USA.

Cellular and Molecular Life Sciences : CMLS
|August 11, 2010
PubMed

Insights

Targeting DNA double-strand break (DSB) repair in cancer offers new therapeutic strategies. Exploiting cancer cells

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Developing cancer therapies with minimal toxicity to normal cells remains a significant challenge.
  • Cancer cells exhibit altered DNA double-strand break (DSB) repair mechanisms, including changes in repair protein levels and pathway utilization.
  • These alterations can lead to increased genomic instability and heightened sensitivity to DNA-damaging agents.

Purpose of the Study:

  • To discuss the various pathways involved in DNA double-strand break (DSB) repair.
  • To review the alterations in DSB repair observed in cancer cells.
  • To explore the potential of targeting DSB repair pathways for novel cancer therapies.

Main Methods:

  • Review of existing literature on DNA double-strand break (DSB) repair pathways.
  • Analysis of alterations in DSB repair mechanisms in the context of cancer.
  • Discussion of inhibitors targeting DSB repair pathways.

Main Results:

  • Cancer cells display distinct alterations in DNA double-strand break (DSB) repair pathways compared to normal cells.
  • These differences present opportunities for developing targeted cancer treatments.
  • Inhibitors of specific DSB repair pathways can selectively target cancer cells.

Conclusions:

  • Targeting DNA double-strand break (DSB) repair pathways is a promising strategy for cancer therapy.
  • Exploiting the differential DSB repair mechanisms between cancer and normal cells can enhance treatment efficacy and reduce toxicity.
  • Further research into DSB repair inhibitors and their clinical application is warranted.

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