Evidence map›Paper›PMID 25053826›Full record

ArticleMolecular cancer therapeutics2014

BRCA2 and RAD51 promote double-strand break formation and cell death in response to gemcitabine.

Rebecca M Jones, Panagiotis Kotsantis, Grant S Stewart, Petra Groth, Eva Petermann

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cancer therapeutics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

30 citing papers in PubMed, 46 citations in OpenAlex.

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  8. Efficacy of Eribulin Plus Gemcitabine Combination in L-Sarcomas.International journal of molecular sciences · 2022
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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

5 authors at 2 institutions in 2 countries.

Rebecca M JonesSchool of Cancer Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom.
Panagiotis KotsantisSchool of Cancer Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom.
Grant S StewartSchool of Cancer Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom.
Petra GrothScience for Life Laboratory, Karolinska Institutet Science Park, Solna, Sweden.
Eva PetermannSchool of Cancer Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom. e.petermann@bham.ac.uk.
Cancer Research UK Clinical Trials Unit · GBScience for Life Laboratory · SE

Funding

Cancer Research UK 13030Cancer Research UK C17183/A13030Medical Research Council MR/J007595/1Wellcome TrustWorldwide Cancer Research 13-1048
6 · The paper itself

Abstract

Replication inhibitors cause replication fork stalling and double-strand breaks (DSB) that result from processing of stalled forks. During recovery from replication blocks, the homologous recombination (HR) factor RAD51 mediates fork restart and DSB repair. HR defects therefore sensitize cells to replication inhibitors, with clear implications for cancer therapy. Gemcitabine is a potent replication inhibitor used to treat cancers with mutations in HR genes such as BRCA2. Here, we investigate why, paradoxically, mutations in HR genes protect cells from killing by gemcitabine. Using DNA replication and DNA damage assays in mammalian cells, we show that even short gemcitabine treatments cause persistent replication inhibition. BRCA2 and RAD51 are recruited to chromatin early after removal of the drug, actively inhibit replication fork progression, and promote the formation of MUS81- and XPF-dependent DSBs that remain unrepaired. Our data suggest that HR intermediates formed at gemcitabine-stalled forks are converted into DSBs and thus contribute to gemcitabine-induced cell death, which could have implications for the treatment response of HR-deficient tumors.

Indexed as

DNA Breaks, Double-StrandedAntimetabolites, AntineoplasticBRCA2 ProteinCell DeathCell SurvivalDeoxycytidineDNA ReplicationGemcitabineHumansMCF-7 CellsNeoplasmsRad51 RecombinaseAntimetabolites, AntineoplasticBRCA2 ProteinBRCA2 protein, humanDeoxycytidineGemcitabineRAD51 protein, humanRad51 Recombinase

Identifiers

PMID25053826
PMCPMC4185294
OpenAlexW2160501852

What OpenQuestion holds

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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.