Evidence map›Paper›PMID 30609792›Full record

ArticleCells2019

Oxidative Stress Induces Telomere Dysfunction and Senescence by Replication Fork Arrest.

Elisa Coluzzi, Stefano Leone, Antonella Sgura

Open access · goldAbstract read
In one paragraph

Article in Cells, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 2 pooled it
8.1field-weighted citation impact, top 2% 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

71 citing papers in PubMed, 2 syntheses or guidelines pooled it, 126 citations in OpenAlex.

  1. Pooled it
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  4. Oxidative Stress andInternational journal of molecular sciences · 2026
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11 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

3 authors at 1 institution in 1 country.

Elisa ColuzziDepartment of Science, University of Rome "Roma TRE", Viale Guglielmo Marconi, 446, 00146 Rome, Italy. elisa.coluzzi@uniroma3.it.
Stefano LeoneDepartment of Science, University of Rome "Roma TRE", Viale Guglielmo Marconi, 446, 00146 Rome, Italy. stefano.leone@uniroma3.it.
Antonella SguraDepartment of Science, University of Rome "Roma TRE", Viale Guglielmo Marconi, 446, 00146 Rome, Italy. antonella.sgura@uniroma3.it.
Marconi University · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oxidative DNA damage, particularly 8-oxoguanine, represents the most frequent DNA damage in human cells, especially at the telomeric level. The presence of oxidative lesions in the DNA can hinder the replication fork and is able to activate the DNA damage response. In this study, we wanted to understand the mechanisms by which oxidative damage causes telomere dysfunction and senescence in human primary fibroblasts. After acute oxidative stress at telomeres, our data demonstrated a reduction in TRF1 and TRF2, which are involved in proper telomere replication and T-loop formation, respectively. Furthermore, we observed a higher level of γH2AX with respect to 53BP1 at telomeres, suggesting a telomeric replication fork stall rather than double-strand breaks. To confirm this finding, we studied the replication of telomeres by Chromosome Orientation-FISH (CO-FISH). The data obtained show an increase in unreplicated telomeres after hydrogen peroxide treatment, corroborating the idea that the presence of 8-oxoG can induce replication fork arrest at telomeres. Lastly, we analyzed the H3K9me3 histone mark after oxidative stress at telomeres, and our results showed an increase of this marker, most likely inducing the heterochromatinization of telomeres. These results suggest that 8-oxoG is fundamental in oxidative stress-induced telomeric damage, principally causing replication fork arrest.

Indexed as

DNA ReplicationCells, CulturedCellular SenescenceDNA DamageFibroblastsGuanineHistonesHumansHydrogen PeroxideOxidative StressPrimary Cell CultureShelterin ComplexTelomereTelomere-Binding ProteinsTelomeric Repeat Binding Protein 2Tumor Suppressor p53-Binding Protein 18-hydroxyguanineGuanineH2AX protein, humanHistonesHydrogen PeroxideShelterin ComplexTelomere-Binding ProteinsTelomeric Repeat Binding Protein 2TERF1 protein, humanTERF2 protein, humanTP53BP1 protein, humanTumor Suppressor p53-Binding Protein 1epigeneticsoxidative stressreplication forktelomere

Identifiers

PMID30609792
PMCPMC6356380
OpenAlexW2907531390

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.