Evidence map›Paper›PMID 28755323›Full record

ArticleJournal of neuro-oncology2017

Detection of the alternative lengthening of telomeres pathway in malignant gliomas for improved molecular diagnosis.

Anne Fogli, Marie-Véronique Demattei, Laetitia Corset, Catherine Vaurs-Barrière, Emmanuel Chautard, Julian Biau, Jean-Louis Kémény, Catherine Godfraind, Bruno Pereira, Toufik Khalil and 4 more

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In one paragraph

Article in Journal of neuro-oncology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

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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

14 authors at 5 institutions in 1 country.

Anne FogliFrench National Institute for Health and Medical Research (INSERM), UMR1103, 63001, Clermont-Ferrand, France.
Marie-Véronique DematteiUMR CNRS 7292, Université François-Rabelais de Tours, 37200, Tours, France.
Laetitia CorsetUMR CNRS 7292, Université François-Rabelais de Tours, 37200, Tours, France.
Catherine Vaurs-BarrièreFrench National Institute for Health and Medical Research (INSERM), UMR1103, 63001, Clermont-Ferrand, France.
Emmanuel ChautardClermont Université, Université d'Auvergne, EA 7283, CREaT, BP 10448, 63000, Clermont-Ferrand, France.
Julian BiauClermont Université, Université d'Auvergne, EA 7283, CREaT, BP 10448, 63000, Clermont-Ferrand, France.
Jean-Louis KéményClermont Université, Université d'Auvergne, EA 7283, CREaT, BP 10448, 63000, Clermont-Ferrand, France.
Catherine GodfraindCHU Clermont-Ferrand, Service d'Anatomopathologie, 63003, Clermont-Ferrand, France.
Bruno PereiraCHU Clermont-Ferrand, Biostatistics Unit, DRCI, 63003, Clermont-Ferrand, France.
Toufik KhalilCHU Clermont-Ferrand, Service de Neurochirurgie, 63003, Clermont-Ferrand, France.
Nathalie GrandinUMR CNRS 7292, Université François-Rabelais de Tours, 37200, Tours, France.
Philippe ArnaudFrench National Institute for Health and Medical Research (INSERM), UMR1103, 63001, Clermont-Ferrand, France.
Michel CharbonneauUMR CNRS 7292, Université François-Rabelais de Tours, 37200, Tours, France. michel.charbonneau@uca.fr.ORCID http://orcid.org/0000-0002-6684-6151
Pierre VerrelleClermont Université, Université d'Auvergne, EA 7283, CREaT, BP 10448, 63000, Clermont-Ferrand, France.
Université Clermont Auvergne · FRUniversité de Tours · FRCentre National de la Recherche Scientifique · FRUniversity of Clermont Auvergne · FRCentre Hospitalier Universitaire de Clermont-Ferrand · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human malignant gliomas exhibit acquisition of either one of two telomere maintenance mechanisms, resulting from either reactivation of telomerase expression or activation of an alternative lengthening of telomeres (ALT) mechanism. In the present study, we analyzed 63 human malignant gliomas for the presence of ALT-specific extrachromosomal circles of telomeric DNA (C-circles) and measured telomerase expression, telomeric DNA content (Telo/Alu method), and telomeric repeat-containing RNAs (TERRA) levels. We also assessed histomolecular markers routinely used in clinical practice. The presence of C-circles significantly correlated with IDH1/2 mutation, MGMT exon 1 methylation, low Ki-67 immunostaining, increased telomeric DNA content, absence of functional ATRX protein and level of HTERT gene expression. In multivariate analysis, we observed a trend to a correlation between elevated TERRA levels and increased survival. Interestingly, the C-circles assay allowed to detect ALT activation in glioblastomas exhibiting wild-type IDH1/2 and ATRX expression. These results suggest that, after the correlations uncovered here have been confirmed on larger numbers of tumors, telomeric markers might be useful in improving diagnosis. They also point out to the utility of using the specific, sensitive and quantitative C-circle and Telo/Alu assays that can work with as few as 30 ng of tumor DNA.

Indexed as

Telomere HomeostasisAdultBrainBrain NeoplasmsCell Line, TumorCohort StudiesDNA Modification MethylasesDNA Repair EnzymesFemaleGliomaHumansIsocitrate DehydrogenaseMaleMiddle AgedNeoplasm GradingRNAATRX protein, humanDNA Modification MethylasesDNA Repair EnzymesIDH1 protein, humanIDH2 protein, humanIsocitrate DehydrogenaseMGMT protein, humanRNATelomeraseTERT protein, humanTumor Suppressor ProteinsX-linked Nuclear ProteinAlternative lengthening of telomeresATRX expressionC-circle assayGliomasTelomeric markers

Identifiers

PMID28755323
OpenAlexW2740609280

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.