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Published on: April 28, 2021
DNA repair pathways in breast cancer: from mechanisms to clinical applications
1Institute of Biomedical Sciences, Shanxi University, Taiyuan, 030006, China. mtufail0276@gmail.com.
Background:
Breast cancer (BC) is a complex disease with various subtypes and genetic alterations that impact DNA repair pathways. Understanding these pathways is essential for developing effective treatments and improving patient outcomes.
Area Covered:
This study investigates the significance of DNA repair pathways in breast cancer, specifically focusing on various pathways such as nucleotide excision repair, base excision repair, mismatch repair, homologous recombination repair, non-homologous end joining, fanconi anemia pathway, translesion synthesis, direct repair, and DNA damage tolerance. The study also examines the role of these pathways in breast cancer resistance and explores their potential as targets for cancer treatment.
Conclusion:
Recent advances in targeted therapies have shown promise in exploiting DNA repair pathways for BC treatment. However, much research is needed to improve the efficacy of these therapies and identify new targets. Additionally, personalized treatments that target specific DNA repair pathways based on tumor subtype or genetic profile are being developed. Advances in genomics and imaging technologies can potentially improve patient stratification and identify biomarkers of treatment response. However, many challenges remain, including toxicity, resistance, and the need for more personalized treatments. Continued research and development in this field could significantly improve BC treatment.
Insights
Understanding DNA repair pathways is crucial for breast cancer (BC) treatment. Targeting these pathways offers potential for new therapies, but further research is needed to overcome resistance and improve patient outcomes.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Breast cancer (BC) is a heterogeneous disease influenced by genetic alterations affecting DNA repair.
- Comprehending DNA repair mechanisms is vital for advancing BC treatment strategies and enhancing patient prognoses.
Purpose of the Study:
- To investigate the critical role of diverse DNA repair pathways in breast cancer.
- To explore the involvement of these pathways in treatment resistance and their potential as therapeutic targets.
Main Methods:
- Comprehensive review of DNA repair pathways including nucleotide excision repair, base excision repair, mismatch repair, homologous recombination repair, non-homologous end joining, Fanconi anemia pathway, translesion synthesis, direct repair, and DNA damage tolerance.
- Analysis of the role of these pathways in breast cancer resistance.
Main Results:
- DNA repair pathways are significantly implicated in breast cancer development and progression.
- These pathways play a key role in the development of resistance to cancer therapies.
Conclusions:
- Targeted therapies exploiting DNA repair pathways show promise but require further optimization for efficacy and new target identification.
- Personalized treatment strategies, informed by genomics and imaging, are emerging for improved patient stratification and biomarker discovery.
- Addressing challenges like toxicity and resistance is essential for advancing breast cancer treatment through continued research in DNA repair mechanisms.
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