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A Data Integration Workflow to Identify Drug Combinations Targeting Synthetic Lethal Interactions
Published on: May 27, 2021
Predictors and Modulators of Synthetic Lethality: An Update on PARP Inhibitors and Personalized Medicine
Stephen Murata1, Catherine Zhang1, Nathan Finch1
1Department of Radiation Oncology, Stritch School of Medicine, Loyola University Chicago, Maywood, IL 60153, USA.
Abstract:
Poly(ADP-ribose) polymerase (PARP) inhibitors have proven to be successful agents in inducing synthetic lethality in several malignancies. Several PARP inhibitors have reached clinical trial testing for treatment in different cancers, and, recently, Olaparib (AZD2281) has gained both United States Food and Drug Administration (USFDA) and the European Commission (EC) approval for use in BRCA-mutated advanced ovarian cancer treatment. The need to identify biomarkers, their interactions in DNA damage repair pathways, and their potential utility in identifying patients who are candidates for PARP inhibitor treatment is well recognized. In this review, we detail many of the biomarkers that have been investigated for their ability to predict both PARP inhibitor sensitivity and resistance in preclinical studies as well as the results of several clinical trials that have tested the safety and efficacy of different PARP inhibitor agents in BRCA and non-BRCA-mutated cancers.
Insights
Poly(ADP-ribose) polymerase (PARP) inhibitors show promise in cancer treatment by exploiting synthetic lethality. This review explores biomarkers for predicting patient response to PARP inhibitors in BRCA-mutated and non-BRCA-mutated cancers.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Poly(ADP-ribose) polymerase (PARP) inhibitors are effective in inducing synthetic lethality in various cancers.
- Olaparib has received regulatory approval for BRCA-mutated ovarian cancer, highlighting the clinical significance of PARP inhibition.
Purpose of the Study:
- To review biomarkers predicting sensitivity and resistance to PARP inhibitors.
- To analyze the utility of biomarkers in identifying patient candidates for PARP inhibitor therapy.
Main Methods:
- Review of preclinical studies investigating biomarkers for PARP inhibitor response.
- Analysis of clinical trial data on the safety and efficacy of PARP inhibitors in different cancer types.
Main Results:
- Numerous biomarkers have been investigated for their predictive value in PARP inhibitor therapy.
- Clinical trials have assessed PARP inhibitor efficacy in both BRCA-mutated and non-BRCA-mutated cancers.
Conclusions:
- Identifying predictive biomarkers is crucial for optimizing PARP inhibitor treatment strategies.
- Further research into biomarker interactions within DNA damage repair pathways is warranted.
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