Evidence map›Paper›PMID 26539646›Full record

ArticleOncotarget2015

PARP1 expression, activity and ex vivo sensitivity to the PARP inhibitor, talazoparib (BMN 673), in chronic lymphocytic leukaemia.

Ashleigh Herriott, Susan J Tudhope, Gesa Junge, Natalie Rodrigues, Miranda J Patterson, Laura Woodhouse, John Lunec, Jill E Hunter, Evan A Mulligan, Michael Cole and 6 more

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.6field-weighted citation impact, top 15% 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

22 citing papers in PubMed, 30 citations in OpenAlex.

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  18. PARP1 in Carcinomas and PARP1 Inhibitors as Antineoplastic Drugs.International journal of molecular sciences · 2017
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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

16 authors at 6 institutions in 3 countries.

Ashleigh HerriottNewcastle Cancer Centre at the Northern Institute for Cancer Research, Medical School, Newcastle University, Newcastle-upon-Tyne, UK.
Susan J TudhopeNewcastle Cancer Centre at the Northern Institute for Cancer Research, Medical School, Newcastle University, Newcastle-upon-Tyne, UK.
Gesa JungeNewcastle Cancer Centre at the Northern Institute for Cancer Research, Medical School, Newcastle University, Newcastle-upon-Tyne, UK.
Natalie RodriguesLaboratory of Lymphocyte Signaling and Oncoproteome, University Hospital of Cologne, Cologne, Germany.
Miranda J PattersonNewcastle Cancer Centre at the Northern Institute for Cancer Research, Medical School, Newcastle University, Newcastle-upon-Tyne, UK.
Laura WoodhouseNewcastle Cancer Centre at the Northern Institute for Cancer Research, Medical School, Newcastle University, Newcastle-upon-Tyne, UK.
John LunecNewcastle Cancer Centre at the Northern Institute for Cancer Research, Medical School, Newcastle University, Newcastle-upon-Tyne, UK.
Jill E HunterInstitute of Cell and Molecular Biosciences, Medical School, Newcastle University, Newcastle-upon-Tyne, UK.
Evan A MulliganNewcastle Cancer Centre at the Northern Institute for Cancer Research, Medical School, Newcastle University, Newcastle-upon-Tyne, UK.
Michael ColeNewcastle Cancer Centre at the Northern Institute for Cancer Research, Medical School, Newcastle University, Newcastle-upon-Tyne, UK.
Lisa M AllinsonInstitute of Medical and Biological Engineering, University of Leeds, Leeds, UK.
Jonathan P WallisDepartment of Haematology, Freeman Hospital, Newcastle upon Tyne, UK.
Scott MarshallDepartment of Haematology, City Hospitals Sunderland NHS Trust, Sunderland, UK.
Evelyn WangBiomarin Pharmaceutical Inc., Novato, California, USA.
Nicola J CurtinNewcastle Cancer Centre at the Northern Institute for Cancer Research, Medical School, Newcastle University, Newcastle-upon-Tyne, UK.
Elaine WillmoreNewcastle Cancer Centre at the Northern Institute for Cancer Research, Medical School, Newcastle University, Newcastle-upon-Tyne, UK.
Newcastle University · GBBioMarin (United States) · USCity Hospital · GBFreeman Hospital · GBUniversity Hospital Cologne · DEUniversity of Leeds · GB

Funding

Cancer Research UK C7369/A8048Medical Research Council
6 · The paper itself

Abstract

In chronic lymphocytic leukemia (CLL), mutation and loss of p53 and ATM abrogate DNA damage signalling and predict poorer response and shorter survival. We hypothesised that poly (ADP-ribose) polymerase (PARP) activity, which is crucial for repair of DNA breaks induced by oxidative stress or chemotherapy, may be an additional predictive biomarker and a target for therapy with PARP inhibitors.We measured PARP activity in 109 patient-derived CLL samples, which varied widely (192 - 190052 pmol PAR/10⁶ cells) compared to that seen in healthy volunteer lymphocytes (2451 - 7519 pmol PAR/10⁶ cells). PARP activity was associated with PARP1 protein expression and endogenous PAR levels. PARP activity was not associated with p53 or ATM loss, Binet stage, IGHV mutational status or survival, but correlated with Bcl-2 and Rel A (an NF-kB subunit). Levels of 8-hydroxy-2'-deoxyguanosine in DNA (a marker of oxidative damage) were not associated with PAR levels or PARP activity. The potent PARP inhibitor, talazoparib (BMN 673), inhibited CD40L-stimulated proliferation of CLL cells at nM concentrations, independently of Binet stage or p53/ATM function.PARP activity is highly variable in CLL and correlates with stress-induced proteins. Proliferating CLL cells (including those with p53 or ATM loss) are highly sensitive to the PARP inhibitor talazoparib.

Indexed as

AdultAntineoplastic AgentsArea Under CurveBiomarkers, TumorDNA DamageEnzyme-Linked Immunosorbent AssayFemaleHumansIn Situ Hybridization, FluorescenceLeukemia, Lymphocytic, Chronic, B-CellMaleMiddle AgedPhthalazinesPoly (ADP-Ribose) Polymerase-1Poly(ADP-ribose) Polymerase InhibitorsPoly(ADP-ribose) PolymerasesAntineoplastic AgentsBiomarkers, TumorPARP1 protein, humanPhthalazinesPoly (ADP-Ribose) Polymerase-1Poly(ADP-ribose) Polymerase InhibitorsPoly(ADP-ribose) PolymerasestalazoparibATMCLLDNA repairPARPtalazoparib

Identifiers

PMID26539646
PMCPMC4791280
OpenAlexW2122466668

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.