ArticleNature communications2023
CRISPR screens reveal genetic determinants of PARP inhibitor sensitivity and resistance in prostate cancer.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers, 4 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
86 citing papers in PubMed, 4 syntheses or guidelines pooled it, 113 citations in OpenAlex.
- Heterogeneity of the Treatment Effect with PARP Inhibitors in Metastatic Castration-resistant Prostate Cancer: A Living Interactive Systematic Review and Meta-analysis.European urology · 2025Pooled it
- Intensification Approaches and Treatment Sequencing in Metastatic Castration-resistant Prostate Cancer: A Systematic Review.European urology · 2025Pooled it
- Preclinical Anticipation of On- and Off-Target Resistance Mechanisms to Anti-Cancer Drugs: A Systematic Review.International journal of molecular sciences · 2024Pooled it
- Poly (ADP-ribose) Polymerase Inhibitors in Patients with Metastatic Castration-Resistant Prostate Cancer: A Meta-Analysis of Randomized Controlled Trials.Medicina (Kaunas, Lithuania) · 2023Pooled it
- A Phase II Trial of Olaparib plus Pembrolizumab in Patients with Recurrent Copy Number-High/p53-Abnormal Endometrial Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026Trial
- A Phase II Trial of Niraparib in Patients with Advanced Pancreatic Cancer Harboring Pathogenic Variants in ATM, BRCA1, BRCA2, PALB2, and CHEK2.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026Trial
- Antitumor activity and structure-activity relationship of poly (ADP-ribose) polymerase (PARP)-based dual inhibitors.Journal of enzyme inhibition and medicinal chemistry · 2026Review
- CRISPR in clinical oncology: translational advances from molecular diagnostics to therapeutics.Nature reviews. Clinical oncology · 2026Review
- Article
- The DNA damage response and cancer immunotherapy.Nature reviews. Cancer · 2026Review
- HAMNO and CGK733 as BRCAness-driven candidates exhibit synthetic lethality with olaparib in BRCA-proficient ovarian cancer.NPJ precision oncology · 2026Article
- Molecular Characterization of PARP Inhibitor Response Reveals Co-Targeting Strategies in Advanced Prostate Cancer.Cancers · 2026Article
- A ferroptosis-suppressive state drives resistance to bladder-preserving chemoradiotherapy in muscle-invasive bladder cancer.Signal transduction and targeted therapy · 2026Article
- TONSL Promotes Hepatocellular Carcinoma Progression by Inhibiting Apoptosis Through Homologous Recombination Repair.Cancer science · 2026Article
- cGAS restricts PARP1-mediated microhomology-mediated end joining by suppressing poly-ADP-ribosylation.Cell death and differentiation · 2026Article
- Prognostic and Functional Role of HELLS in Prostate Cancer: Implications for Tumor Progression and Immune Microenvironment.Applied biochemistry and biotechnology · 2026Article
- Targeting poly(ADP-ribose) polymerase in metastatic prostate cancer: current landscape and future directions.Current opinion in oncology · 2026Review
- Treatment Response and Outcomes of Prostate Cancer Patients Carrying the Germline MMS22L F722fs Mutation.The Prostate · 2026Article
- Genomic and Clinical Impact of Smoking on Therapeutic Outcomes in Prostate Cancer: A Public Databases Analysis.The Prostate · 2026Article
- Liquid Biopsy in Advanced Prostate Cancer.Cancers · 2026Review
26 more citing papers are in PubMed but not listed here.
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Authors and funding
21 authors at 6 institutions in 4 countries.
Funding
Abstract
Prostate cancer harboring BRCA1/2 mutations are often exceptionally sensitive to PARP inhibitors. However, genomic alterations in other DNA damage response genes have not been consistently predictive of clinical response to PARP inhibition. Here, we perform genome-wide CRISPR-Cas9 knockout screens in BRCA1/2-proficient prostate cancer cells and identify previously unknown genes whose loss has a profound impact on PARP inhibitor response. Specifically, MMS22L deletion, frequently observed (up to 14%) in prostate cancer, renders cells hypersensitive to PARP inhibitors by disrupting RAD51 loading required for homologous recombination repair, although this response is TP53-dependent. Unexpectedly, loss of CHEK2 confers resistance rather than sensitivity to PARP inhibition through increased expression of BRCA2, a target of CHEK2-TP53-E2F7-mediated transcriptional repression. Combined PARP and ATR inhibition overcomes PARP inhibitor resistance caused by CHEK2 loss. Our findings may inform the use of PARP inhibitors beyond BRCA1/2-deficient tumors and support reevaluation of current biomarkers for PARP inhibition in prostate cancer.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.