Evidence map›Paper›PMID 29396294›Full record

ArticleEBioMedicine2018

PD-1 (PDCD1) Promoter Methylation Is a Prognostic Factor in Patients With Diffuse Lower-Grade Gliomas Harboring Isocitrate Dehydrogenase (IDH) Mutations.

Lea Kristin Röver, Heidrun Gevensleben, Jörn Dietrich, Friedrich Bootz, Jennifer Landsberg, Diane Goltz, Dimo Dietrich

Open access · goldAbstract read
In one paragraph

Article in EBioMedicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 3 pooled it
5.4field-weighted citation impact, top 4% 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

48 citing papers in PubMed, 3 syntheses or guidelines pooled it, 68 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Review
  16. Article
  17. Article
  18. Review
  19. Review
  20. Designing Clinical Trials for Combination Immunotherapy: A Framework for Glioblastoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2022
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Lea Kristin RöverDepartment of Otolaryngology, Head and Neck Surgery, University Hospital Bonn, Bonn, Germany.
Heidrun GevenslebenInstitute of Pathology, University Hospital Bonn, Bonn, Germany.
Jörn DietrichDepartment of Otolaryngology, Head and Neck Surgery, University Hospital Bonn, Bonn, Germany.
Friedrich BootzDepartment of Otolaryngology, Head and Neck Surgery, University Hospital Bonn, Bonn, Germany.
Jennifer LandsbergDepartment of Dermatology, Dermato-Oncology Section, University Hospital Bonn, Bonn, Germany.
Diane GoltzInstitute of Pathology, University Hospital Cologne, Cologne, Germany.
Dimo DietrichDepartment of Otolaryngology, Head and Neck Surgery, University Hospital Bonn, Bonn, Germany. Electronic address: dimo.dietrich@ukbonn.de.
University Hospital Bonn · DEUniversity Hospital Cologne · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Immune checkpoints are important targets for immunotherapies. However, knowledge on the epigenetic modification of immune checkpoint genes is sparse. In the present study, we investigated promoter methylation of CTLA4, PD-L1, PD-L2, and PD-1 in diffuse lower-grade gliomas (LGG) harboring isocitrate dehydrogenase (IDH) mutations with regard to mRNA expression levels, clinicopathological parameters, previously established methylation subtypes, immune cell infiltrates, and survival in a cohort of 419 patients with IDH-mutated LGG provided by The Cancer Genome Atlas. PD-L1, PD-L2, and CTLA-4 mRNA expression levels showed a significant inverse correlation with promoter methylation (PD-L1: p=0.005; PD-L2: p<0.001; CTLA-4: p<0.001). Furthermore, immune checkpoint methylation was significantly associated with age (PD-L2: p=0.003; PD-1: p=0.015), molecular alterations, i.e. MGMT methylation (PD-L1: p<0.001; PD-L2: p<0.001), ATRX mutations (PD-L2: p<0.001, PD-1: p=0.001), and TERT mutations (PD-L1: p=0.035, PD-L2: p<0.001, PD-1: p<0.001, CTLA4: p<0.001) as well as methylation subgroups and immune cell infiltrates. In multivariate Cox proportional hazard analysis, PD-1 methylation qualified as strong prognostic factor (HR=0.51 [0.34-0.76], p=0.001). Our findings suggest an epigenetic regulation of immune checkpoint genes via DNA methylation in LGG. PD-1 methylation may assist the identification of patients that might benefit from an alternative treatment, particularly in the context of emerging immunotherapies.

Indexed as

Promoter Regions, GeneticAdultCTLA-4 AntigenDNA MethylationFemaleGene Expression Regulation, NeoplasticGliomaHumansIsocitrate DehydrogenaseMaleMultivariate AnalysisMutationNeoplasm GradingPrognosisProgrammed Cell Death 1 ReceptorProportional Hazards ModelsCTLA-4 AntigenCTLA4 protein, humanIsocitrate DehydrogenasePDCD1 protein, humanProgrammed Cell Death 1 ReceptorRNA, MessengerCTLA-4DNA methylationLower-grade gliomaPD-1PD-L1Prognosis

Identifiers

PMID29396294
PMCPMC5835568
OpenAlexW2793615081

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.