Evidence map›Paper›PMID 27016230›Full record

ArticleGynecologic oncology2016

Copy number deletion of RAD50 as predictive marker of BRCAness and PARP inhibitor response in BRCA wild type ovarian cancer.

Min Zhang, Guoyan Liu, Fengxia Xue, Robert Edwards, Anil K Sood, Wei Zhang, Da Yang

Open access · greenAbstract read
In one paragraph

Article in Gynecologic oncology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
4.2field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 54 citations in OpenAlex.

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  17. Relevance of Platinum-free Interval andClinical cancer research : an official journal of the American Association for Cancer Research · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Min ZhangCenter for Pharmacogenetics, Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA.
Guoyan LiuDepartment of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin 300052, China.
Fengxia XueDepartment of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin 300052, China.
Robert EdwardsDepartment of Obstetrics, Gynecology & Reproductive Sciences, Magee-Womens Hospital of UPMC, Pittsburgh, PA 15213, USA.
Anil K SoodDepartment of Gynecologic Oncology and Reproductive Medicine, Center for RNAi and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
Wei ZhangDepartment of Pathology, University of Texas MD Anderson Cancer Center Informatics Center, Houston, TX 77030, USA.
Da YangCenter for Pharmacogenetics, Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA; Women's Cancer Research Center, University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213, USA; Department of Computational & Systems Biology, University of Pittsburgh, Pittsburgh, PA 15261, USA. Electronic address: dyang@pitt.edu.
The University of Texas MD Anderson Cancer Center · USTianjin Medical University General Hospital · CNUniversity of Pittsburgh · USMagee-Womens Hospital · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
UNIVERSITY OF TEXAS MD ANDERSON SPORE IN OVARIAN CANCERP50CA083639 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI BAST, ROBERT C · 1999 to 2015
$33.0M
RPCI-UPCI Ovarian Cancer SPOREP50CA159981 · NCI · ROSWELL PARK CANCER INSTITUTE CORP · PI MOYSICH, KIRSTEN B. · 2013 to 2025
$19.6M
Texas Center for Cancer NanomedicineU54CA151668 · NCI · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI FERRARI, MAURO · 2010 to 2014
$12.4M
Center for Systems Analysis of the Cancer RegulomeU24CA143835 · NCI · INSTITUTE FOR SYSTEMS BIOLOGY · PI SHMULEVICH, ILYA · 2009 to 2016
$10.6M
NCI NIH HHS P30 CA016672NCI NIH HHS P50 CA083639NCI NIH HHS P50 CA159981NCI NIH HHS U24 CA143835NCI NIH HHS U54 CA151668
6 · The paper itself

Abstract

objectiveTo identify novel prognostic and therapeutic markers for PARP inhibitors in BRCA wild type ovarian cancer (OvCa).

methodsBRCAness status was defined by analyzing whole-exome deep sequencing data from 220 BRCAwt OvCa cases in TCGA. Thirty-three DNA-repair genes were screened in an integrated manner for BRCA-independent mechanism of BRCAness using multiple-dimensional genomic data. Publicly available databases and siRNA knock-down were used for external validation and evaluation of drug response in OvCa cell lines.

resultsIn 220 BRCAwt OvCa patients, tumors exhibiting the BRCAness signature have enhanced OS (HR [95% CI]=0.33 [0.15-0.69], P=0.004) and PFS (HR [95% CI]=0.51 [0.24-1.08], P=0.077), strongly suggesting a BRCA-independent mechanism of drug sensitivity in those patients. Systematic screening of driving molecular events of BRCAness revealed that RAD50 deletion is a marker of BRCAness. The RAD50 deletion occurred in 18% of BRCAwt OvCa patients. RAD50 deletion led to its decreased mRNA expression in tumors (fold change=0.63, P=3.56×10(-13)). In BRCAwt patients, RAD50 deletion was associated with significantly better OS (HR [95% CI]=0.44 [0.25-0.78], P=0.005) and PFS (HR [95% CI]=0.60 [0.37-0.99], P=0.044), adjusted by age and stage. Knockdown of RAD50 expression augmented OvCa cell's responses to cisplatin and olaparib. Among 19 OvCa cell lines, the RAD50 copy number deletion is significantly associated with better responses to two structurally distinct PARPis (i.e. olaparib and rucaparib).

conclusionOur study identified the copy number deletion of RAD50 as a candidate marker for survival and response to PARPis in BRCAwt OvCa tumors.

Indexed as

Gene DeletionGene DosageGenes, BRCA1Genes, BRCA2Acid Anhydride HydrolasesAdultAgedAged, 80 and overBiomarkers, TumorCell Line, TumorDNA-Binding ProteinsDNA Repair EnzymesFemaleHumansMiddle AgedOvarian NeoplasmsAcid Anhydride HydrolasesBiomarkers, TumorDNA-Binding ProteinsDNA Repair EnzymesPoly(ADP-ribose) Polymerase InhibitorsRAD50 protein, humanBRCAnessHigh-grade serous ovarian cancerHomologous recombinationPARP inhibitor

Identifiers

PMID27016230
PMCPMC4967351
OpenAlexW2302561381

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Registered trials

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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.