Evidence map›Paper›PMID 34862364›Full record

ArticleNature communications2021

Therapeutic vulnerability to PARP1,2 inhibition in RB1-mutant osteosarcoma.

Georgia Zoumpoulidou, Carlos Alvarez-Mendoza, Caterina Mancusi, Ritika-Mahmuda Ahmed, Milly Denman, Christopher D Steele, Maxime Tarabichi, Errin Roy, Lauren R Davies, Jiten Manji and 5 more

Open access · greenAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
–field-weighted citation impact
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

42 citing papers in PubMed, 27 citations in OpenAlex.

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  19. Disclosure of Potential Therapeutic Targets in Plumbagin for Treating Osteosarcoma.Biomedical engineering and computational biology · 2025
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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

15 authors at 1 institution in 3 countries.

Georgia ZoumpoulidouUCL Cancer Institute, University College London, London, UK.ORCID http://orcid.org/0000-0002-5983-8196
Carlos Alvarez-MendozaUCL Cancer Institute, University College London, London, UK.ORCID http://orcid.org/0000-0002-5972-0315
Caterina MancusiUCL Cancer Institute, University College London, London, UK.
Ritika-Mahmuda AhmedUCL Cancer Institute, University College London, London, UK.ORCID http://orcid.org/0000-0002-2866-3362
Milly DenmanUCL Cancer Institute, University College London, London, UK.
Christopher D SteeleUCL Cancer Institute, University College London, London, UK.
Maxime TarabichiThe Francis Crick Institute, London, UK.
Errin RoyUCL Cancer Institute, University College London, London, UK.ORCID http://orcid.org/0000-0002-1077-0266
Lauren R DaviesUCL Cancer Institute, University College London, London, UK.ORCID http://orcid.org/0000-0002-2956-3259
Jiten ManjiUCL Cancer Institute, University College London, London, UK.
Camilla CristalliExperimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.ORCID http://orcid.org/0000-0003-0526-5916
Katia ScotlandiExperimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.ORCID http://orcid.org/0000-0001-6114-9499
Nischalan PillayUCL Cancer Institute, University College London, London, UK.ORCID http://orcid.org/0000-0003-0579-4105
Sandra J StraussUCL Cancer Institute, University College London, London, UK.
Sibylle MittnachtUCL Cancer Institute, University College London, London, UK. s.mittnacht@ucl.ac.uk.ORCID http://orcid.org/0000-0002-0463-6554
Cancer Institute (WIA) · IN

Funding

Cancer Research UK FC001202Cancer Research UK (CRUK) C416/A23233Wellcome TrustWellcome Trust FC001202
6 · The paper itself

Abstract

Loss-of-function mutations in the RB1 tumour suppressor are key drivers in cancer, including osteosarcoma. RB1 loss-of-function compromises genome-maintenance and hence could yield vulnerability to therapeutics targeting such processes. Here we demonstrate selective hypersensitivity to clinically-approved inhibitors of Poly-ADP-Polymerase1,2 inhibitors (PARPi) in RB1-defective cancer cells, including an extended panel of osteosarcoma-derived lines. PARPi treatment results in extensive cell death in RB1-defective backgrounds and prolongs survival of mice carrying human RB1-defective osteosarcoma grafts. PARPi sensitivity is not associated with canonical homologous recombination defect (HRd) signatures that predict PARPi sensitivity in cancers with BRCA1,2 loss, but is accompanied by rapid activation of DNA replication checkpoint signalling, and active DNA replication is a prerequisite for sensitivity. Importantly, sensitivity in backgrounds with natural or engineered RB1 loss surpasses that seen in BRCA-mutated backgrounds where PARPi have established clinical benefit. Our work provides evidence that PARPi sensitivity extends beyond cancers identifiable by HRd and advocates PARP1,2 inhibition as a personalised strategy for RB1-mutated osteosarcoma and other cancers.

Indexed as

AnimalsBone NeoplasmsCell Line, TumorDrug Resistance, NeoplasmMiceOsteosarcomaPoly (ADP-Ribose) Polymerase-1Poly(ADP-ribose) Polymerase InhibitorsPoly(ADP-ribose) PolymerasesRecombinational DNA RepairRetinoblastoma Binding ProteinsUbiquitin-Protein LigasesXenograft Model Antitumor AssaysPARP1 protein, humanPARP2 protein, humanPoly (ADP-Ribose) Polymerase-1Poly(ADP-ribose) Polymerase InhibitorsPoly(ADP-ribose) PolymerasesRB1 protein, humanRetinoblastoma Binding ProteinsUbiquitin-Protein Ligases

Identifiers

PMID34862364
PMCPMC8642453
OpenAlexW3214971393

What OpenQuestion holds

Textmetadata
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.