Evidence map›Paper›PMID 36139600›Full record

ArticleCancers2022

Androgen Receptor Splice Variants Contribute to the Upregulation of DNA Repair in Prostate Cancer.

Yuri Tolkach, Anika Kremer, Gábor Lotz, Matthias Schmid, Thomas Mayr, Sarah Förster, Stephan Garbe, Sana Hosni, Marcus V Cronauer, Ildikó Kocsmár and 7 more

Open access · goldAbstract read
In one paragraph

Article in Cancers, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 16% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

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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

17 authors at 3 institutions in 2 countries.

Yuri TolkachInstitute of Pathology, University Hospital Bonn, 53127 Bonn, Germany.
Anika KremerInstitute of Pathology, University Hospital Bonn, 53127 Bonn, Germany.ORCID 0000-0001-5927-4645
Gábor LotzDepartment of Pathology, Forensic and Insurance Medicine, Semmelweis University, 1085 Budapest, Hungary.ORCID 0000-0002-6921-8978
Matthias SchmidDepartment of Medical Biometry, Informatics, and Epidemiology (IMBIE), University Hospital Bonn, 53127 Bonn, Germany.
Thomas MayrInstitute of Pathology, University Hospital Bonn, 53127 Bonn, Germany.ORCID 0000-0002-2900-1782
Sarah FörsterInstitute of Pathology, University Hospital Bonn, 53127 Bonn, Germany.
Stephan GarbeDepartment of Radiation Oncology, University Hospital Bonn, 53127 Bonn, Germany.ORCID 0000-0003-3430-4590
Sana HosniClinic of Urology, University Hospital Bonn, 53127 Bonn, Germany.ORCID 0000-0002-2236-3836
Marcus V CronauerInstitute of Pathology, University Hospital Bonn, 53127 Bonn, Germany.
Ildikó KocsmárDepartment of Urology, Semmelweis University, 1085 Budapest, Hungary.
Éva KocsmárDepartment of Pathology, Forensic and Insurance Medicine, Semmelweis University, 1085 Budapest, Hungary.ORCID 0000-0003-3061-1323
Péter RieszDepartment of Urology, Semmelweis University, 1085 Budapest, Hungary.
Abdullah AlajatiClinic of Urology, University Hospital Bonn, 53127 Bonn, Germany.
Manuel RitterClinic of Urology, University Hospital Bonn, 53127 Bonn, Germany.ORCID 0000-0001-8667-2067
Jörg EllingerClinic of Urology, University Hospital Bonn, 53127 Bonn, Germany.ORCID 0000-0002-7526-0857
Carsten-Henning OhlmannDepartment of Urology, Johanniter Krankenhaus Bonn, 53113 Bonn, Germany.
Glen KristiansenInstitute of Pathology, University Hospital Bonn, 53127 Bonn, Germany.
University Hospital Bonn · DESemmelweis University · HUJohanniter-Krankenhaus Bonn · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCanonical androgen receptor (AR) signaling regulates a network of DNA repair genes in prostate cancer (PCA). Experimental and clinical evidence indicates that androgen deprivation not only suppresses DNA repair activity but is often synthetically lethal in combination with PARP inhibition. The present study aimed to elucidate the impact of AR splice variants (AR-Vs), occurring in advanced or late-stage PCA, on DNA repair machinery.

methodsTwo hundred and seventy-three tissue samples were analyzed, including primary hormone-naïve PCA, primary metastases, hormone-sensitive PCA on androgen deprivation therapy (ADT) and castration refractory PCA (CRPC group). The transcript levels of the target genes were profiled using the nCounter platform. Experimental support for the findings was gained in AR/AR-V7-expressing LNCaP cells subjected to ionizing radiation.

resultsAR-Vs were present in half of hormone-sensitive PCAs on androgen deprivation therapy (ADT) and two-thirds of CRPC samples. The presence of AR-Vs is highly correlated with increased activity in the AR pathway and DNA repair gene expression. In AR-V-expressing CRPC, the DNA repair score increased by 2.5-fold as compared to AR-V-negative samples. Enhanced DNA repair and the deregulation of DNA repair genes by AR-V7 supported the clinical data in a cell line model.

conclusionsThe expression of AR splice variants such as AR-V7 in PCA patients following ADT might be a reason for reduced or absent therapy effects in patients on additional PARP inhibition due to the modulation of DNA repair gene expression. Consequently, AR-Vs should be further studied as predictive biomarkers for therapy response in this setting.

Indexed as

androgen deprivation therapyandrogen receptorAR-V7BRCA1BRCA2castration-refractory prostate cancerDNA repairprostate cancersplice variant

Identifiers

PMID36139600
PMCPMC9496991
OpenAlexW4296280345

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.