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A Data Integration Workflow to Identify Drug Combinations Targeting Synthetic Lethal Interactions
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Targeting synthetic lethality in DNA damage repair pathways as an anti-cancer strategy

Benjamin J Moeller1, Wadih Arap, Renata Pasqualini

  • 1David H Koch Center, The University of Texas M D Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA.

Current Drug Targets
|September 16, 2010
PubMed

Insights

Targeting DNA repair deficiencies in cancer offers a specific anti-cancer strategy. This approach exploits tumor cells' reliance on alternative repair pathways, sparing normal tissues.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Tumorigenesis often leads to deficiencies in major DNA damage repair pathways.
  • Cancers become dependent on alternative DNA repair mechanisms for survival and genomic stability.

Purpose of the Study:

  • To review the rationale for targeting alternative DNA repair mechanisms in cancer.
  • To provide examples of this anti-cancer strategy.
  • To discuss unanswered questions regarding synthetic lethality in DNA repair.

Main Methods:

  • Literature review of DNA repair pathways in cancer.
  • Analysis of the theoretical basis for targeting synthetic lethality.
  • Discussion of clinical application and patient identification strategies.

Main Results:

  • Deficiencies in major DNA repair pathways create dependencies on alternative mechanisms.
  • Targeting these dependencies offers a potentially tumor-specific therapeutic window.
  • The frequent occurrence of such synthetic lethal interactions in human cancers remains an open question.

Conclusions:

  • Targeting alternative DNA repair pathways is a promising, specific anti-cancer strategy.
  • Further research is needed to determine the prevalence of synthetic lethality in DNA repair across human cancers.
  • Identifying patient populations who would benefit from these targeted therapies is crucial.

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