Evidence map›Paper›PMID 28201779›Full record

ArticleNeuro-oncology2017

Comprehensive molecular characterization of multifocal glioblastoma proves its monoclonal origin and reveals novel insights into clonal evolution and heterogeneity of glioblastomas.

Khalil Abou-El-Ardat, Michael Seifert, Kerstin Becker, Sophie Eisenreich, Matthias Lehmann, Karl Hackmann, Andreas Rump, Gerrit Meijer, Beatriz Carvalho, Achim Temme and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-oncology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
5.6field-weighted citation impact, top 3% 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

69 citing papers in PubMed, 110 citations in OpenAlex.

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  14. Sequential Inhibition of PARP and BET as a Rational Therapeutic Strategy for Glioblastoma.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
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9 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 7 institutions in 2 countries.

Khalil Abou-El-ArdatInstitut für Klinische Genetik, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Michael SeifertGerman Cancer Consortium (DKTK), Dresden, Germany.
Kerstin BeckerInstitut für Klinische Genetik, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Sophie EisenreichInstitut für Klinische Genetik, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Matthias LehmannInstitut für Klinische Genetik, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Karl HackmannInstitut für Klinische Genetik, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Andreas RumpInstitut für Klinische Genetik, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Gerrit MeijerDepartment of Pathology, VU University Medical Center, Amsterdam, the Netherlands.
Beatriz CarvalhoDepartment of Pathology, VU University Medical Center, Amsterdam, the Netherlands.
Achim TemmeGerman Cancer Consortium (DKTK), Dresden, Germany.
Gabriele SchackertGerman Cancer Consortium (DKTK), Dresden, Germany.
Evelin SchröckInstitut für Klinische Genetik, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Dietmar KrexGerman Cancer Consortium (DKTK), Dresden, Germany.
Barbara KlinkInstitut für Klinische Genetik, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Amsterdam UMC Location Vrije Universiteit Amsterdam · NLHeidelberg University · DEGerman Cancer Research Center · DENational Center for Tumor Diseases · DEDeutschen Konsortium für Translationale Krebsforschung · DETechnische Universität Dresden · DEUniversity Hospital Carl Gustav Carus · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The evolution of primary glioblastoma (GBM) is poorly understood. Multifocal GBM (ie, multiple synchronous lesions in one patient) could elucidate GBM development. Methods: We present the first comprehensive study of 12 GBM foci from 6 patients using array-CGH, spectral karyotyping, gene expression arrays, and next-generation sequencing. Results: Multifocal GBMs genetically resemble primary GBMs. Comparing foci from the same patient proved their monoclonal origin. All tumors harbored alterations in the 3 GBM core pathways: RTK/PI3K, p53, and RB regulatory pathways with aberrations of EGFR and CDKN2A/B in all (100%) patients. This unexpected high frequency reflects a distinct genetic signature of multifocal GBMs and might account for their highly malignant and invasive phenotype. Surprisingly, the types of mutations in these genes/pathways were different in tumor foci from the same patients. For example, we found distinct mutations/aberrations in PTEN, TP53, EGFR, and CDKN2A/B, which therefore must have occurred independently and late during tumor development. We also identified chromothripsis as a late event and in tumors with wild-type TP53. Only 2 events were found to be early in all patients: single copy loss of PTEN and TERT promoter point mutations. Conclusions: Multifocal GBMs develop through parallel genetic evolution. The high frequency of alterations in 3 main pathways suggests that these are essential steps in GBM evolution; however, their late occurrence indicates that they are not founder events but rather subclonal drivers. This might account for the marked genetic heterogeneity seen in primary GBM and therefore has important implications for GBM therapy.

Indexed as

Clonal EvolutionEvolution, MolecularBrain NeoplasmsGene ExpressionGlioblastomaHumansMutationSignal Transductionmonoclonal originmultifocal glioblastomatumor evolutiontumor geneticstumor heterogeneity

Identifiers

PMID28201779
PMCPMC5464316
OpenAlexW2587964111

What OpenQuestion holds

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Registered trials

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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.