Evidence map›Paper›PMID 25211033›Full record

ArticlePloS one2014

MGMT promoter methylation correlates with an overall survival benefit in Chinese high-grade glioblastoma patients treated with radiotherapy and alkylating agent-based chemotherapy: a single-institution study.

Dong Shen, Tao Liu, Qingfen Lin, Xiangdong Lu, Qiong Wang, Feng Lin, Weidong Mao

Abstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Antitumoral Activity of the Universal Methyl DonorMolecules (Basel, Switzerland) · 2024
    Article
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  5. Article
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  8. Article
  9. Posttreatment Effect of MGMT Methylation Level on Glioblastoma Survival.Journal of neuropathology and experimental neurology · 2019
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. MGMT testing allows for personalised therapy in the temozolomide era.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    Review
  17. Article
  18. Extent ofNeuro-oncology advances
    Article
  19. Review
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

7 authors.

Dong ShenDepartment of Oncology, the Affiliated Jiangyin Hospital of Southeast University Medical College, Jiangyin, P.R. China.
Tao LiuDepartment of Oncology, the Affiliated Jiangyin Hospital of Southeast University Medical College, Jiangyin, P.R. China.
Qingfen LinDepartment of Oncology, the Affiliated Jiangyin Hospital of Southeast University Medical College, Jiangyin, P.R. China.
Xiangdong LuDepartment of Oncology, the Affiliated Jiangyin Hospital of Southeast University Medical College, Jiangyin, P.R. China.
Qiong WangDepartment of Oncology, the Affiliated Jiangyin Hospital of Southeast University Medical College, Jiangyin, P.R. China.
Feng LinDepartment of Oncology, the Affiliated Jiangyin Hospital of Southeast University Medical College, Jiangyin, P.R. China.
Weidong MaoDepartment of Oncology, the Affiliated Jiangyin Hospital of Southeast University Medical College, Jiangyin, P.R. China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Promoter methylation of the O(6)-methylguanine-DNA-methyltransferase (MGMT) gene has been considered a prognostic marker and has become more important in the treatment of glioblastoma. However, reports on the correlation between MGMT and clinical outcomes in Chinese glioblastoma patients are very scarce. In this study, quantitative methylation data were obtained by the pyrosequencing of tumor tissues from 128 GBM patients. The median overall survival (OS) was 13.1 months, with a 1-year survival of 45.3%. The pyrosequencing data were reproducible based on archived samples yielding data for all glioblastomas. MGMT promoter methylation was detected in 75/128 cases (58.6%), whereas 53/128 (41.4%) cases were unmethylated. Further survival analysis also revealed that methylation was an independent prognostic factor associated with prolonged OS but not with progression-free survival (PFS) (p = 0.029 and p = 0.112, respectively); the hazard radios were 0.63 (95% CI: 0.42-0.96) and 0.72 (95% CI: 0.48-1.09), respectively. These data indicated that MGMT methylation has prognostic significance in patients with newly diagnosed high-grade glioblastoma undergoing alkylating agent-based chemotherapy after surgical resection.

Indexed as

DNA MethylationAdultAgedAntineoplastic Agents, AlkylatingBrain NeoplasmsChemoradiotherapy, AdjuvantDisease-Free SurvivalDNA Modification MethylasesDNA Repair EnzymesFemaleGlioblastomaHumansKaplan-Meier EstimateMaleMiddle AgedPrognosisAntineoplastic Agents, AlkylatingDNA Modification MethylasesDNA Repair EnzymesMGMT protein, humanTumor Suppressor Proteins

Identifiers

PMID25211033
PMCPMC4161443

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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.