Evidence map›Paper›PMID 32457376›Full record

ArticleNature communications2020

CX-5461 activates the DNA damage response and demonstrates therapeutic efficacy in high-grade serous ovarian cancer.

Elaine Sanij, Katherine M Hannan, Jiachen Xuan, Shunfei Yan, Jessica E Ahern, Anna S Trigos, Natalie Brajanovski, Jinbae Son, Keefe T Chan, Olga Kondrashova and 18 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed
12.6field-weighted citation impact, top 1% 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

105 citing papers in PubMed, 216 citations in OpenAlex.

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  13. Fibrillarin: bridging ribosome biogenesis and apoptosis in cellular stress and disease.Apoptosis : an international journal on programmed cell death · 2026
    Review
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45 more citing papers are in PubMed but not listed here.

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

28 authors at 8 institutions in 3 countries.

Elaine Sanij *Peter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia. elaine.sanij@petermac.org.ORCID http://orcid.org/0000-0002-2063-7813
Katherine M Hannan *ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, Australian National University, Acton, 2601, Australia Capital Territory, Australia. kate.hannan@anu.edu.au.ORCID http://orcid.org/0000-0003-4186-8167
Jiachen XuanPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.
Shunfei YanPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.
Jessica E AhernPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.
Anna S TrigosPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.ORCID http://orcid.org/0000-0002-5915-2952
Natalie BrajanovskiPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.
Jinbae SonPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.
Keefe T ChanPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.ORCID http://orcid.org/0000-0001-6114-3724
Olga KondrashovaThe Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.ORCID http://orcid.org/0000-0003-0022-5149
Elizabeth LieschkeThe Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.
Matthew J WakefieldThe Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.ORCID http://orcid.org/0000-0001-6624-4698
Daniel FrankThe Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.
Sarah EllisPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.ORCID http://orcid.org/0000-0002-5772-6051
Carleen CullinanePeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.ORCID http://orcid.org/0000-0001-5833-6605
Jian KangPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.
Gretchen PoortingaPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.ORCID http://orcid.org/0000-0001-5990-9559
Purba NagQIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.ORCID http://orcid.org/0000-0002-6863-5438
Andrew J DeansDepartment of Medicine, St. Vincent's Hospital, University of Melbourne, Parkville, VIC, 3010, Australia.ORCID http://orcid.org/0000-0002-5271-4422
Kum Kum KhannaQIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.
Linda MileshkinPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.
Grant A McArthurPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.
John SoongSenhwa Biosciences, Virginia Commonwealth University School of Medicine, San Diego, CA, USA.
Els M J J BernsDepartment of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands.
Ross D HannanPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.ORCID http://orcid.org/0000-0002-2166-4493
Clare L ScottPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.ORCID http://orcid.org/0000-0002-3689-5956
Karen E SheppardPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia.ORCID http://orcid.org/0000-0002-2798-4703
Richard B PearsonPeter MacCallum Cancer Centre, 305 Grattan St, Melbourne, VIC, 3000, Australia. rick.pearson@petermac.org.ORCID http://orcid.org/0000-0001-5919-5090
The University of Melbourne · AUPeter MacCallum Cancer Centre · AUAustralian National University · AUWalter and Eliza Hall Institute of Medical Research · AUErasmus MC Cancer Institute · NLGriffith University · AUQIMR Berghofer Medical Research Institute · AUVirginia Commonwealth University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Acquired resistance to PARP inhibitors (PARPi) is a major challenge for the clinical management of high grade serous ovarian cancer (HGSOC). Here, we demonstrate CX-5461, the first-in-class inhibitor of RNA polymerase I transcription of ribosomal RNA genes (rDNA), induces replication stress and activates the DNA damage response. CX-5461 co-operates with PARPi in exacerbating replication stress and enhances therapeutic efficacy against homologous recombination (HR) DNA repair-deficient HGSOC-patient-derived xenograft (PDX) in vivo. We demonstrate CX-5461 has a different sensitivity spectrum to PARPi involving MRE11-dependent degradation of replication forks. Importantly, CX-5461 exhibits in vivo single agent efficacy in a HGSOC-PDX with reduced sensitivity to PARPi by overcoming replication fork protection. Further, we identify CX-5461-sensitivity gene expression signatures in primary and relapsed HGSOC. We propose CX-5461 is a promising therapy in combination with PARPi in HR-deficient HGSOC and also as a single agent for the treatment of relapsed disease.

Indexed as

DNA DamageAnimalsBenzothiazolesCell Line, TumorCystadenocarcinoma, SerousDNA ReplicationDrug Resistance, NeoplasmEnzyme InhibitorsFemaleHeterograftsHomologous RecombinationHumansMiceMice, Inbred NODMice, KnockoutMice, SCIDBenzothiazolesCX 5461Enzyme InhibitorsNaphthyridinesPoly(ADP-ribose) Polymerase InhibitorsRNA Polymerase I

Identifiers

PMID32457376
PMCPMC7251123
OpenAlexW3030525997

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.