Evidence map›Paper›PMID 21789683›Full record

ArticleChild's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery2011

MGMT promoter gene methylation in pediatric glioblastoma: analysis using MS-MLPA.

Ji Yeoun Lee, Chul-Kee Park, Sung-Hye Park, Kyu-Chang Wang, Byung-Kyu Cho, Seung-Ki Kim

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Article in Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.8field-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

15 citing papers in PubMed, 29 citations in OpenAlex.

  1. Trial
  2. Clinical Outcomes and Prognostic Features of Diffuse Hemispheric Glioma, H3 G34-Mutant: An International Multi-institutional Study.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. MGMT methylation assessment in glioblastoma: MS-MLPA versus human methylation 450K beadchip array and immunohistochemistry.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2016
    Article
  7. Pediatric glioblastoma: a single institution experience.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2016
    Article
  8. Review
  9. Article
  10. Review
  11. Distinct genetic alterations in pediatric glioblastomas.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2012
    Article
  12. Article
  13. Review
  14. Article
  15. 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

6 authors at 3 institutions in 3 countries.

Ji Yeoun LeeDivision of Pediatric Neurosurgery, Department of Neurosurgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, 110-744, Republic of Korea.
Chul-Kee Park
Sung-Hye Park
Kyu-Chang Wang
Byung-Kyu Cho
Seung-Ki Kim
National University College · PRSeoul National University Children's Hospital · KRNew Generation University College · ET

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePromoter methylation of the O⁶-methylguanine-DNA-methyltransferase (MGMT) gene is widely recognized as an important predictive factor in the treatment of glioblastoma (GBM) patients with temozolomide. However, data regarding the methylation status of the MGMT promoter in pediatric GBM are yet to be elucidated.

methodsNineteen tissue samples of pediatric GBM were evaluated for the MGMT promoter methylation status using methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA). Methylation status was also evaluated using methylation-specific polymerase chain reaction (MSP) for 17 of the 19 patients. The correlation between MGMT promoter methylation and clinical outcome was assessed.

resultsThree of the 19 patients (16%) showed methylation of the MGMT promoter, according to MS-MLPA, as did 1 of the 17 (6%), according to MSP. The methylation status did not seem to have a definite effect on clinical outcome.

conclusionsPediatric GBMs rarely have methylated MGMT promoters. With a better clinical outcome and lower methylation rate than their adult counterparts, it may be suggested that, for pediatric GBM, MGMT promoter methylation does not play a significant role as a prognostic factor.

Indexed as

DNA MethylationNucleic Acid Amplification TechniquesAdolescentAntineoplastic AgentsBrain NeoplasmsChildChild, PreschoolDacarbazineDisease-Free SurvivalDNA Modification MethylasesDNA Repair EnzymesFemaleGlioblastomaHumansInfantKaplan-Meier EstimateAntineoplastic AgentsDacarbazineDNA Modification MethylasesDNA Repair EnzymesMGMT protein, humanTemozolomideTumor Suppressor Proteins

Identifiers

PMID21789683
OpenAlexW1974761480

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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.