Evidence map›Paper›PMID 24359605›Full record

ArticleClinical neuropathology

Clinical Neuropathology practice news 1-2014: pyrosequencing meets clinical and analytical performance criteria for routine testing of MGMT promoter methylation status in glioblastoma.

Matthias Preusser, Anna S Berghoff, Claudia Manzl, Martin Filipits, Andreas Weinhäusel, Walter Pulverer, Karin Dieckmann, Georg Widhalm, Adelheid Wöhrer, Engelbert Knosp and 2 more

Open access · greenAbstract read
In one paragraph

Article in Clinical neuropathology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
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  16. Do we really know who has anNeuro-oncology practice · 2020
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  19. MGMT promoter methylation status in Merkel cell carcinoma: in vitro versus invivo.Journal of cancer research and clinical oncology · 2017
    Article
  20. Article
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

12 authors at 4 institutions in 1 country.

Matthias PreusserDepartment of Medicine I, Medical University of Vienna, Vienna, Division of Pathology, Medical University of Innsbruck, Innsbruck, Comprehensive Cancer Center - CNS Tumors Unit (CCC-CNS), Medical University of Vienna, Vienna, Molecular Diagnostics, Austrian Institute of Technology, Department of Radiotherapy, Department of Neurosurgery, and Institute of Neurology, Medical University of Vienna, Vienna, Austria.
Anna S Berghoff
Claudia Manzl
Martin Filipits
Andreas Weinhäusel
Walter Pulverer
Karin Dieckmann
Georg Widhalm
Adelheid Wöhrer
Engelbert Knosp
Christine Marosi
Johannes A Hainfellner
Comprehensive Cancer Center Vienna · ATMedical University of Vienna · ATAustrian Institute of Technology · ATUniversität Innsbruck · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Testing of the MGMT promoter methylation status in glioblastoma is relevant for clinical decision making and research applications. Two recent and independent phase III therapy trials confirmed a prognostic and predictive value of the MGMT promoter methylation status in elderly glioblastoma patients. Several methods for MGMT promoter methylation testing have been proposed, but seem to be of limited test reliability. Therefore, and also due to feasibility reasons, translation of MGMT methylation testing into routine use has been protracted so far. Pyrosequencing after prior DNA bisulfite modification has emerged as a reliable, accurate, fast and easy-to-use method for MGMT promoter methylation testing in tumor tissues (including formalin fixed and paraffin-embedded samples). We performed an intra- and inter-laboratory ring trial which demonstrates a high analytical performance of this technique. Thus, pyrosequencing- based assessment of MGMT promoter methylation status in glioblastoma meets the criteria of high analytical test performance and can be recommended for clinical application, provided that strict quality control is performed. Our article summarizes clinical indications, practical instructions and open issues for MGMT promoter methylation testing in glioblastoma using pyrosequencing.

Indexed as

DNA MethylationPromoter Regions, GeneticAdultAgedBrain NeoplasmsDiphosphatesDNA Modification MethylasesDNA Repair EnzymesGlioblastomaHumansLuminescent MeasurementsNucleic Acid Amplification TechniquesPredictive Value of TestsReproducibility of ResultsSequence Analysis, DNASulfitesDiphosphatesdiphosphoric acidDNA Modification MethylasesDNA Repair Enzymeshydrogen sulfiteMGMT protein, humanSulfitesTumor Suppressor Proteins

Identifiers

PMID24359605
PMCPMC3891253
OpenAlexW2333779042

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.