Biomarkers to assess the targeting of DNA repair pathways to augment tumor response to therapy
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Updated: May 25, 2026

Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
S Nowsheen1, A C Whitley, E S Yang
1Department of Radiation Oncology, Comprehensive Cancer Center, University of Alabama at Birmingham School of Medicine, 176F HSROC Suite 2232B, 1700 6th Avenue South, Birmingham, AL 35249-6832, USA.
Abstract:
Hyper-activation of DNA repair pathways can enable tumor cells to survive DNA damage. Therefore, targeting specific DNA repair pathways might prove efficacious for cancer therapy. The advent of personalized therapy necessitates novel biomarkers to assess tumor response to therapy. Biological indicators are vital in the field of cancer research and treatment. The focus of this review is on the DNA repair machinery as an emerging target for enhancement of therapy. Additionally, DNA damage and repair biomarkers for prognosis in different types of cancer will be discussed. The application of biomarkers to assess tumor response to therapy based on targeting DNA repair pathways can potentially improve patient quality of life and aid in treatment design.
Insights
Targeting DNA repair pathways can enhance cancer therapy. Novel biomarkers are crucial for personalized medicine, assessing tumor response and improving patient outcomes in cancer treatment.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Tumor cells can survive DNA damage by hyper-activating DNA repair pathways.
- Targeting these pathways presents a promising strategy for cancer therapy.
- Personalized therapy requires reliable biomarkers to predict treatment response.
Purpose of the Study:
- To review DNA repair machinery as a therapeutic target in cancer.
- To discuss DNA damage and repair biomarkers for cancer prognosis.
- To explore the application of biomarkers in assessing therapy response for improved patient care.
Main Methods:
- Literature review focusing on DNA repair mechanisms in cancer.
- Analysis of existing research on DNA repair inhibitors and biomarkers.
- Synthesis of information on biomarker utility in personalized cancer treatment.
Main Results:
- DNA repair pathways are critical for tumor cell survival and therapeutic resistance.
- Specific DNA repair pathways represent viable targets for novel cancer therapies.
- Biomarkers associated with DNA damage and repair can predict prognosis and guide treatment decisions.
Conclusions:
- Targeting DNA repair pathways offers a promising avenue for enhancing cancer treatment efficacy.
- Biomarkers are essential for tailoring therapies and monitoring treatment response in oncology.
- Integrating biomarker analysis into treatment design can optimize patient outcomes and quality of life.
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