Evidence map›Paper›PMID 24912512›Full record

ReviewNature reviews. Neurology2014

MGMT testing--the challenges for biomarker-based glioma treatment.

Wolfgang Wick, Michael Weller, Martin van den Bent, Marc Sanson, Markus Weiler, Andreas von Deimling, Christoph Plass, Monika Hegi, Michael Platten, Guido Reifenberger

Open access · greenAbstract readReview
PubMed Publisher
In one paragraph

Review in Nature reviews. Neurology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 316 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
316citing papers in PubMed, 1 pooled it
21.5field-weighted citation impact, top 1% 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

316 citing papers in PubMed, 1 synthesis or guideline pooled it, 578 citations in OpenAlex.

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  3. Dual Immune Check Point Blockade inJournal of clinical oncology : official journal of the American Society of Clinical Oncology · 2025
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256 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 4 countries.

Wolfgang WickGerman Cancer Consortium, Clinical Cooperation Units Neuro-oncology, German Cancer Research Centre, Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany.
Michael WellerDepartment of Neurology, University Hospital Zurich, Switzerland.
Martin van den BentDepartment of Neurology/Neuro-oncology, Erasmus MC Cancer Institute, Netherlands.
Marc SansonService de Neurologie 2, Groupe Hospitalier Pitié-Salpêtrière, Université Pierre et Marie Curie, France.
Markus WeilerGerman Cancer Consortium, Clinical Cooperation Units Neuro-oncology, German Cancer Research Centre, Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany.
Andreas von DeimlingNeuropathology, German Cancer Research Centre, Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany.
Christoph PlassDivision of Epigenetics and Risk Factors, German Cancer Research Centre, Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany.
Monika HegiDepartment of Clinical Neurosciences, University Hospital Lausanne, Switzerland.
Michael PlattenNeuroimmunology and Brain Tumour Immunology, German Cancer Research Centre, Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany.
Guido ReifenbergerDepartment of Neuropathology, Heinrich Heine University, Germany.
Erasmus MC Cancer Institute · NLHeinrich Heine University Düsseldorf · DESorbonne Université · FRUniversity Hospital of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many patients with malignant gliomas do not respond to alkylating agent chemotherapy. Alkylator resistance of glioma cells is mainly mediated by the DNA repair enzyme O(6)-methylguanine-DNA methyltransferase (MGMT). Epigenetic silencing of the MGMT gene by promoter methylation in glioma cells compromises this DNA repair mechanism and increases chemosensitivity. MGMT promoter methylation is, therefore, a strong prognostic biomarker in paediatric and adult patients with glioblastoma treated with temozolomide. Notably, elderly patients (>65-70 years) with glioblastoma whose tumours lack MGMT promoter methylation derive minimal benefit from such chemotherapy. Thus, MGMT promoter methylation status has become a frequently requested laboratory test in neuro-oncology. This Review presents current data on the prognostic and predictive relevance of MGMT testing, discusses clinical trials that have used MGMT status to select participants, evaluates known issues concerning the molecular testing procedure, and addresses the necessity for molecular-context-dependent interpretation of MGMT test results. Whether MGMT promoter methylation testing should be offered to all individuals with glioblastoma, or only to elderly patients and those in clinical trials, is also discussed. Justifications for withholding alkylating agent chemotherapy in patients with MGMT-unmethylated glioblastomas outside clinical trials, and the potential role for MGMT testing in other gliomas, are also discussed.

Indexed as

BiomarkersBrain NeoplasmsDNA MethylationDNA Modification MethylasesDNA Repair EnzymesGliomaHumansModels, MolecularTumor Suppressor ProteinsBiomarkersDNA Modification MethylasesDNA Repair EnzymesMGMT protein, humanTumor Suppressor Proteins

Identifiers

PMID24912512
OpenAlexW2013816626

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.