Evidence map›Paper›PMID 20802516›Full record

ArticleOncogene2010

PARP1 is activated at telomeres upon G4 stabilization: possible target for telomere-based therapy.

E Salvati, M Scarsella, M Porru, A Rizzo, S Iachettini, L Tentori, G Graziani, M D'Incalci, M F G Stevens, A Orlandi and 5 more

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In one paragraph

Article in Oncogene, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 1 pooled it
3.2field-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

61 citing papers in PubMed, 1 synthesis or guideline pooled it, 123 citations in OpenAlex.

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1 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

15 authors at 4 institutions in 3 countries.

E SalvatiExperimental Chemotherapy Laboratory, Regina Elena Cancer Institute, Rome, Italy.
M Scarsella
M Porru
A Rizzo
S Iachettini
L Tentori
G Graziani
M D'Incalci
M F G Stevens
A Orlandi
D Passeri
E Gilson
G Zupi
C Leonetti
A Biroccio
University of Rome Tor Vergata · ITMario Negri Institute for Pharmacological Research · ITUniversité Côte d'Azur · FRUniversity of Nottingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

New anti-telomere strategies represent important goals for the development of selective cancer therapies. In this study, we reported that uncapped telomeres, resulting from pharmacological stabilization of quadruplex DNA by RHPS4 (3,11-difluoro-6,8,13-trimethyl-8H-quino[4,3,2-kl]acridinium methosulfate), trigger specific recruitment and activation of poly-adenosine diphosphate (ADP) ribose polymerase I (PARP1) at the telomeres, forming several ADP-ribose polymers that co-localize with the telomeric repeat binding factor 1 protein and are inhibited by selective PARP(s) inhibitors or PARP1-specific small interfering RNAs. The knockdown of PARP1 prevents repairing of RHPS4-induced telomere DNA breaks, leading to increases in chromosome abnormalities and eventually to the inhibition of tumor cell growth both in vitro and in xenografts. More interestingly, the integration of a TOPO1 inhibitor on the combination treatment proved to have a high therapeutic efficacy ensuing a complete regression of the tumor as well as a significant increase in overall survival and cure of mice even when treatments started at a very late stage of tumor growth. Overall, this work reveals the unexplored link between the PARP1 and G-quadruplex ligands and demonstrates the excellent efficacy of a multi-component strategy based on the use of PARP inhibitors in telomere-based therapy.

Indexed as

AcridinesAnimalsAntineoplastic AgentsDNA DamageDNA RepairDrug SynergismEnzyme ActivationEnzyme InhibitorsG-QuadruplexesHCT116 CellsHT29 CellsHumansMaleMicePoly(ADP-ribose) PolymerasesProtein Transport3,11-difluoro-6,8,13-trimethyl-8H-quino(4,3,2-kl)acridiniumAcridinesAntineoplastic AgentsEnzyme InhibitorsPoly(ADP-ribose) Polymerases

Identifiers

PMID20802516
OpenAlexW2018598852

What OpenQuestion holds

Textmetadata
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.