Evidence map›Paper›PMID 30709339›Full record

ArticleBMC cancer2019

Crosslink between Temozolomide and PD-L1 immune-checkpoint inhibition in glioblastoma multiforme.

Sabrina Heynckes, Karam Daka, Pamela Franco, Annette Gaebelein, Jan Hendrik Frenking, Roberto Doria-Medina, Irina Mader, Daniel Delev, Oliver Schnell, Dieter Henrik Heiland

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
6.4field-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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 64 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Novel Immunotherapeutic Approaches for the Treatment of Glioblastoma.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2023
    Review
  10. In Situ Nitric Oxide Gas Nanogenerator Reprograms Glioma Immunosuppressive Microenvironment.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Article
  11. Review
  12. Article
  13. Article
  14. Signaling pathways in brain tumors and therapeutic interventions.Signal transduction and targeted therapy · 2023
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

10 authors at 1 institution in 1 country.

Sabrina HeynckesDepartment of Neurosurgery, Medical Center University of Freiburg, Breisacher Straße 64, 79106, Freiburg, Germany.
Karam DakaDepartment of Neurosurgery, Medical Center University of Freiburg, Breisacher Straße 64, 79106, Freiburg, Germany.
Pamela FrancoDepartment of Neurosurgery, Medical Center University of Freiburg, Breisacher Straße 64, 79106, Freiburg, Germany.
Annette GaebeleinDepartment of Neurosurgery, Medical Center University of Freiburg, Breisacher Straße 64, 79106, Freiburg, Germany.
Jan Hendrik FrenkingDepartment of Neurosurgery, Medical Center University of Freiburg, Breisacher Straße 64, 79106, Freiburg, Germany.
Roberto Doria-MedinaDepartment of Neurosurgery, Medical Center University of Freiburg, Breisacher Straße 64, 79106, Freiburg, Germany.
Irina MaderDepartment of Neuroradiology, Medical Center - University of Freiburg, Freiburg, Germany.
Daniel DelevDepartment of Neurosurgery, Medical Center University of Freiburg, Breisacher Straße 64, 79106, Freiburg, Germany.
Oliver SchnellDepartment of Neurosurgery, Medical Center University of Freiburg, Breisacher Straße 64, 79106, Freiburg, Germany.
Dieter Henrik HeilandDepartment of Neurosurgery, Medical Center University of Freiburg, Breisacher Straße 64, 79106, Freiburg, Germany. dieter.henrik.heiland@uniklinik-freiburg.de.ORCID http://orcid.org/0000-0002-9258-3033
University of Freiburg · DE

Funding

German Cancer Society Seeding Grand TII
6 · The paper itself

Abstract

backgroundIn recent years, PD-1/PD-L1 immune checkpoint inhibitors have improved cancer therapy in many tumor types, but no benefit of immune checkpoint therapy has been found in glioblastoma multiforme (GBM). Based on the results of our earlier work, which showed a reduction of PD-L1 expression in patients treated with temozolomide (TMZ), we aimed to investigate the link between TMZ therapy and the immune control point target PD-L1.

methodsRNA-sequencing data from de-novo and recurrent glioblastoma were analyzed by AutoPipe algorithm. Results were confirmed either in a cell model by two primary and one established GBM cell line and specimens of de-novo and recurrent GBM. PD-L1 and pathway activation of the JAK/STAT pathway was analyzed by quantitative real-time PCR and western blot.

resultsWe found a significant downregulation of the JAK/STAT pathway and immune response in recurrent tumors. The cell model showed an upregulation of PD-L1 after IFNγ treatment, while additional TMZ treatment lead to a reduction of PD-L1 expression and JAK/STAT pathway activation. These findings were confirmed in specimens of de-novo and recurrent glioblastoma.

conclusionsOur results suggest that TMZ therapy leads to a down-regulation of PD-L1 in primary GBM cells. These results support the clinical findings where PD-L1 is significantly reduced in recurrent GBMs. If the target is diminished, it may also lead to impaired efficacy of PD-1/PD-L1 inhibitors such as nivolumab.

Indexed as

Antineoplastic Agents, AlkylatingB7-H1 AntigenBrain NeoplasmsCell Line, TumorGene Expression ProfilingGene Expression Regulation, NeoplasticGlioblastomaHumansImmunohistochemistryInterferon-gammaPhosphorylationSignal TransductionSTAT Transcription FactorsTemozolomideTumor Cells, CulturedAntineoplastic Agents, AlkylatingB7-H1 AntigenCD274 protein, humanInterferon-gammaSTAT Transcription FactorsTemozolomidePD-L1 immunotherapyRecurrent GBMTemozolomide

Identifiers

PMID30709339
PMCPMC6359796
OpenAlexW2916254412

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.