Evidence map›Paper›PMID 30053291›Full record

ArticleNeuro-oncology2018

DNA methylation-based classification of ependymomas in adulthood: implications for diagnosis and treatment.

Hendrik Witt, Dorothee Gramatzki, Bettina Hentschel, Kristian W Pajtler, Jörg Felsberg, Gabriele Schackert, Markus Löffler, David Capper, Felix Sahm, Martin Sill and 10 more

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-oncology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 2 pooled it
6.7field-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

72 citing papers in PubMed, 2 syntheses or guidelines pooled it, 110 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. A brief history of ependymoma.Neuro-oncology · 2026
    Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Intraocular Ependymoma: Do They Exist?Ocular oncology and pathology · 2025
    Article
  18. Article
  19. Review
  20. Review

12 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

20 authors at 7 institutions in 2 countries.

Hendrik WittHopp-Children's Cancer Center at the NCT Heidelberg (KiTZ), Heidelberg, Germany.
Dorothee GramatzkiDepartment of Neurology, University Hospital and University of Zurich, Zurich, Switzerland.
Bettina HentschelInstitute for Medical Informatics, Statistics, and Epidemiology, University of Leipzig, Leipzig, Germany.
Kristian W PajtlerHopp-Children's Cancer Center at the NCT Heidelberg (KiTZ), Heidelberg, Germany.
Jörg FelsbergDepartment of Neuropathology, Heinrich-Heine-University, Düsseldorf, Germany.
Gabriele SchackertDepartment of Neurosurgery, Carl Gustav Carus University Hospital, Technical University of Dresden, Dresden, Germany.
Markus LöfflerInstitute for Medical Informatics, Statistics, and Epidemiology, University of Leipzig, Leipzig, Germany.
David CapperDepartment of Neuropathology, Institute of Pathology, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.
Felix SahmDepartment of Neuropathology, Institute of Pathology, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.
Martin SillHopp-Children's Cancer Center at the NCT Heidelberg (KiTZ), Heidelberg, Germany.
Andreas von DeimlingDepartment of Neuropathology, Institute of Pathology, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.
Marcel KoolHopp-Children's Cancer Center at the NCT Heidelberg (KiTZ), Heidelberg, Germany.
Ulrich HerrlingerDepartment of Neurology, Division of Clinical Neuro-oncology, University of Bonn Medical Center, Bonn, Germany.
Manfred WestphalDepartment of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Torsten PietschDepartment of Neuropathology, University of Bonn, Bonn, Germany.
Guido ReifenbergerDepartment of Neuropathology, Heinrich-Heine-University, Düsseldorf, Germany.
Stefan M PfisterHopp-Children's Cancer Center at the NCT Heidelberg (KiTZ), Heidelberg, Germany.
Jörg C TonnDepartment of Neurosurgery, University of Munich LMU, Munich, Germany.
Michael WellerDepartment of Neurology, University Hospital and University of Zurich, Zurich, Switzerland.
German Glioma Network
German Cancer Research Center · DELeipzig University · DEUniversity of Bonn · DEUniversity of Zurich · CHLMU Klinikum · DEUniversität Hamburg · DEUniversity Hospital Carl Gustav Carus · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Ependymal tumors are glial tumors that commonly manifest in children and young adults. Their classification has remained entirely morphological until recently, and surgery and radiotherapy are the main treatment options, especially in adults. Here we sought to correlate DNA methylation profiles with clinical and pathological characteristics in the prospective cohort of the German Glioma Network. Methods: Tumors from 122 adult patients with myxopapillary ependymoma, ependymoma, anaplastic ependymoma, subependymoma, or RELA fusion-positive ependymoma classified according to the World Health Organization (WHO) 2016 were subjected to DNA methylation profiling using the Illumina HumanMethylation450 BeadChip platform. Molecular data were correlated with histologic features and clinical characteristics. Results: At a median follow-up of 86.7 months, only 22 patients experienced progression (18.0%) and 13 patients (10.7%) died. Each tumor could be assigned to one of the previously defined molecular ependymoma subgroups. All histologic subependymomas corresponded to subependymoma (SE) DNA methylation subgroups, but the reverse was not true: 19 histologic ependymomas (WHO grade II) were allocated to molecular SE groups. Similarly, all histological myxopapillary ependymomas were assigned to the molecularly defined spinal myxopapillary ependymoma (SP-MPE) class, but this molecular subgroup additionally included 15 WHO grade II ependymomas by histology. Overall, WHO grade II ependymomas distributed into 7 molecular subgroups. Conclusion: Most adult patients with ependymoma show a favorable prognosis. Molecular classification may provide diagnostic and prognostic information beyond histology and facilitate patient stratification in future clinical trials. The prognostic significance of a subependymoma or myxopapillary ependymoma DNA methylation phenotype without corresponding histology requires further study. Key Points: 1. Ependymoma diagnosed in adult patients most often shows a good prognosis. 2. Molecular classification can support diagnostic and prognostic information beyond histology.

Indexed as

DNA MethylationAdolescentAdultAgedAged, 80 and overBiomarkers, TumorBrain NeoplasmsDisease ProgressionEpendymomaFemaleFollow-Up StudiesHumansMaleMiddle AgedOligonucleotide Array Sequence AnalysisPrognosisBiomarkers, Tumor

Identifiers

PMID30053291
PMCPMC6231197
OpenAlexW2884587459

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.