Targeting base excision repair in precision oncology

Nicola P Montaldo1, Hilde Loge Nilsen1, Diana L Bordin2

  • 1Department of Microbiology, Oslo University Hospital, Norway; Institute of Clinical Medicine, University of Oslo, Norway; CRESCO - Centre for embryology and healthy Development, University of Oslo, Norway.

DNA Repair
|May 13, 2025
PubMed

Insights

Targeting DNA repair pathways, like base excision repair (BER), offers a precision oncology strategy. This approach exploits tumor weaknesses to improve cancer treatment outcomes, especially in DNA damage response (DDR)-defective cancers.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Therapeutics

Background:

  • Targeting the DNA damage response (DDR) is a crucial cancer therapy strategy.
  • Precision oncology aims to personalize treatments based on genetic vulnerabilities.
  • PARP inhibitors demonstrate the therapeutic potential of targeting DNA repair.

Purpose of the Study:

  • To explore the potential of targeting the base excision repair (BER) pathway in cancer therapy.
  • To highlight BER as a promising target, especially for DDR-defective tumors.
  • To review advancements in BER-targeted therapies for precision oncology.

Main Methods:

  • Literature review of DDR, BER, and precision oncology strategies.
  • Analysis of the role of BER in DNA repair mechanisms.
  • Discussion of clinical implications and future directions for BER-targeted therapies.

Main Results:

  • BER pathway targeting offers a novel approach to cancer treatment.
  • Tumors with deficiencies in other DNA repair pathways are particularly vulnerable to BER inhibition.
  • Advancements in biomarkers and drug development are paving the way for BER-targeted therapies.

Conclusions:

  • Targeting the BER pathway represents a significant advancement in precision oncology.
  • BER-targeted therapies hold promise for improving treatment outcomes in specific cancer types.
  • Further research and development in BER-targeted drugs are essential for clinical application.

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