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[Abnormalities of DNA repair and gynecological cancers]

Aurélie Auguste1, Alexandra Leary2

  • 1Gustave-Roussy, Inserm U981, Gynecological Tumors Translational Research Lab, 114, rue Edouard-Vaillant, B2M - p130, 94805 Villejuif, France.

Bulletin Du Cancer
|October 22, 2017
PubMed

Insights

Poly (ADP) ribose polymerase inhibitors (PARPi) show promise for ovarian cancer (OC) by exploiting DNA repair defects. Research is exploring new biomarkers and combinations to expand PARPi benefits to more patients.

Area of Science:

  • Oncology
  • Genetics
  • Molecular Biology

Background:

  • High-grade ovarian cancer (OC) frequently exhibits DNA damage response defects.
  • Poly (ADP) ribose polymerase inhibitors (PARPi) leverage synthetic lethality in homologous recombination (HR) deficient OC, particularly BRCA1/2-mutated.
  • Olaparib is approved for BRCA1/2-mutated recurrent, platinum-sensitive OC.

Purpose of the Study:

  • To investigate the potential of PARPi beyond BRCA mutations in ovarian cancer.
  • To identify new biomarkers for homologous recombination deficiency (HRD) to select BRCA wild-type patients for PARPi therapy.
  • To explore combinatorial strategies to enhance PARPi efficacy and develop novel DNA repair-targeting therapies for gynecological tumors.

Main Methods:

  • Review of recent clinical trials in ovarian cancer.
  • Analysis of genomic studies identifying alterations in HR genes.
  • Exploration of potential biomarker development and combination therapies.

Main Results:

  • Evidence suggests PARPi benefit extends to non-BRCA mutated ovarian cancer.
  • Genomic studies indicate widespread HR gene alterations in OC.
  • Significant potential exists for exploiting DNA repair deficiencies therapeutically.

Conclusions:

  • PARPi represent a promising therapeutic strategy for ovarian cancer by targeting DNA repair defects.
  • Further research is needed to identify predictive biomarkers and optimize combination treatments for broader patient application.
  • Exploiting DNA repair deficiencies offers a significant avenue for treating ovarian and other gynecological malignancies.
Keywords:
Cancers gynécologiquesDNA damageDNA repairEndommagement de l’ADNGynaecological cancersInhibiteurs de poly-ADP ribose polymérase (PARP)Poly-ADP ribose polymerase inhibitorsRéparation de l’ADN

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