Evidence map›Paper›PMID 19596811›Full record

ArticleNucleic acids research2009

Stabilization of quadruplex DNA perturbs telomere replication leading to the activation of an ATR-dependent ATM signaling pathway.

Angela Rizzo, Erica Salvati, Manuela Porru, Carmen D'Angelo, Malcolm F Stevens, Maurizio D'Incalci, Carlo Leonetti, Eric Gilson, Gabriella Zupi, Annamaria Biroccio

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

86 citing papers in PubMed, 172 citations in OpenAlex.

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26 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

10 authors at 4 institutions in 2 countries.

Angela RizzoDepartment of Experimental Chemotherapy, Regina Elena Cancer Institute, 00158 Rome, Italy.
Erica Salvati
Manuela Porru
Carmen D'Angelo
Malcolm F Stevens
Maurizio D'Incalci
Carlo Leonetti
Eric Gilson
Gabriella Zupi
Annamaria Biroccio
Centre National de la Recherche Scientifique · FRUniversity of Nottingham · GBÉcole Normale Supérieure de Lyon · FRUniversité Claude Bernard Lyon 1 · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Functional telomeres are required to maintain the replicative ability of cancer cells and represent putative targets for G-quadruplex (G4) ligands. Here, we show that the pentacyclic acridinium salt RHPS4, one of the most effective and selective G4 ligands, triggers damages in cells traversing S phase by interfering with telomere replication. Indeed, we found that RHPS4 markedly reduced BrdU incorporation at telomeres and altered the dynamic association of the telomeric proteins TRF1, TRF2 and POT1, leading to chromosome aberrations such as telomere fusions and telomere doublets. Analysis of the molecular damage pathway revealed that RHPS4 induced an ATR-dependent ATM signaling that plays a functional role in the cellular response to RHPS4 treatment. We propose that RHPS4, by stabilizing G4 DNA at telomeres, impairs fork progression and/or telomere processing resulting in telomere dysfunction and activation of a replication stress response pathway. The detailed understanding of the molecular mode of action of this class of compounds makes them attractive tools to understand telomere biology and provides the basis for a rational use of G4 ligands for the therapy of cancer.

Indexed as

AcridinesAtaxia Telangiectasia Mutated ProteinsCell Cycle ProteinsCell LineDNA-Binding ProteinsDNA DamageDNA ReplicationG-QuadruplexesHumansLigandsProtein Serine-Threonine KinasesSignal TransductionTelomereTumor Suppressor Proteins3,11-difluoro-6,8,13-trimethyl-8H-quino(4,3,2-kl)acridiniumAcridinesAtaxia Telangiectasia Mutated ProteinsATM protein, humanATR protein, humanCell Cycle ProteinsDNA-Binding ProteinsLigandsProtein Serine-Threonine KinasesTumor Suppressor Proteins

Identifiers

PMID19596811
PMCPMC2760797
OpenAlexW2028345897

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.