Evidence map›Paper›PMID 36541070›Full record

ArticleThe EMBO journal2023

WRN helicase and mismatch repair complexes independently and synergistically disrupt cruciform DNA structures.

Valentina Mengoli, Ilaria Ceppi, Aurore Sanchez, Elda Cannavo, Swagata Halder, Sarah Scaglione, Pierre-Henri Gaillard, Peter J McHugh, Nathalie Riesen, Piergiorgio Pettazzoni and 1 more

Open access · hybridAbstract read
In one paragraph

Article in The EMBO journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

28 citing papers in PubMed, 37 citations in OpenAlex.

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  19. ARID1A in Gynecologic Precancers and Cancers.Reproductive sciences (Thousand Oaks, Calif.) · 2024
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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

11 authors at 5 institutions in 3 countries.

Valentina MengoliFaculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana (USI), Bellinzona, Switzerland.
Ilaria CeppiFaculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana (USI), Bellinzona, Switzerland.ORCID 0000-0001-6496-8983
Aurore SanchezFaculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana (USI), Bellinzona, Switzerland.
Elda CannavoFaculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana (USI), Bellinzona, Switzerland.
Swagata HalderFaculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana (USI), Bellinzona, Switzerland.
Sarah ScaglioneCentre de Recherche en Cancérologie de Marseille, CRCM, Inserm, CNRS, Aix-Marseille Université, Institut Paoli-Calmettes, Marseille, France.ORCID 0000-0001-6705-5645
Pierre-Henri GaillardCentre de Recherche en Cancérologie de Marseille, CRCM, Inserm, CNRS, Aix-Marseille Université, Institut Paoli-Calmettes, Marseille, France.ORCID 0000-0003-0781-0826
Peter J McHughDepartment of Oncology, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, UK.ORCID 0000-0002-8679-4627
Nathalie RiesenRoche Pharma Research & Early Development pRED, Roche Innovation Center, Basel, Switzerland.
Piergiorgio PettazzoniRoche Pharma Research & Early Development pRED, Roche Innovation Center, Basel, Switzerland.ORCID 0000-0001-9039-2463
Petr CejkaFaculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana (USI), Bellinzona, Switzerland.ORCID 0000-0002-9087-032X
Università della Svizzera italiana · CHCentre National de la Recherche Scientifique · FRRoche (Switzerland) · CHBoard of the Swiss Federal Institutes of Technology · CHJohn Radcliffe Hospital · GB

Funding

European Research Council 101018257European Research Council 681630Medical Research Council MR/R009368/1Medical Research Council MR/X000192/1Swiss National Science Foundation 310030_205199
6 · The paper itself

Abstract

The Werner Syndrome helicase, WRN, is a promising therapeutic target in cancers with microsatellite instability (MSI). Long-term MSI leads to the expansion of TA nucleotide repeats proposed to form cruciform DNA structures, which in turn cause DNA breaks and cell lethality upon WRN downregulation. Here we employed biochemical assays to show that WRN helicase can efficiently and directly unfold cruciform structures, thereby preventing their cleavage by the SLX1-SLX4 structure-specific endonuclease. TA repeats are particularly prone to form cruciform structures, explaining why these DNA sequences are preferentially broken in MSI cells upon WRN downregulation. We further demonstrate that the activity of the DNA mismatch repair (MMR) complexes MutSα (MSH2-MSH6), MutSβ (MSH2-MSH3), and MutLα (MLH1-PMS2) similarly decreases the level of DNA cruciforms, although the mechanism is different from that employed by WRN. When combined, WRN and MutLα exhibited higher than additive effects in in vitro cruciform processing, suggesting that WRN and the MMR proteins may cooperate. Our data explain how WRN and MMR defects cause genome instability in MSI cells with expanded TA repeats, and provide a mechanistic basis for their recently discovered synthetic-lethal interaction with promising applications in precision cancer therapy.

Indexed as

DNA, CruciformDNA Mismatch RepairHumansMicrosatellite InstabilityMutL Protein Homolog 1MutS Homolog 2 ProteinWerner Syndrome HelicaseDNA, CruciformMutL Protein Homolog 1MutS Homolog 2 ProteinWerner Syndrome HelicaseWRN protein, humanbiochemistrycancermismatch repairsynthetic lethalityWerner

Identifiers

PMID36541070
PMCPMC9890227
OpenAlexW4312065951

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.