Evidence map›Paper›PMID 25774992›Full record

ArticlePloS one2015

Analysis of expression of programmed cell death 1 ligand 1 (PD-L1) in malignant pleural mesothelioma (MPM).

Susana Cedrés, Santiago Ponce-Aix, Jon Zugazagoitia, Irene Sansano, Ana Enguita, Alejandro Navarro-Mendivil, Alex Martinez-Marti, Pablo Martinez, Enriqueta Felip

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 4 pooled it
19.6field-weighted citation impact, top 1% 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

95 citing papers in PubMed, 4 syntheses or guidelines pooled it, 219 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Ad-SGE-DKK3 Gene Therapy Overcomes Resistance to Immune Checkpoint Blockade in Pleural Mesothelioma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2025
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  14. Immunotherapy for advanced and recurrent malignant pleural mesothelioma.The Cochrane database of systematic reviews · 2024
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  15. Observational
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  18. Review
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  20. Article

35 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

9 authors at 2 institutions in 1 country.

Susana CedrésMedical Oncology Service/Vall d´Hebron Institute Oncology, Vall d'Hebron University Hospital, Barcelona, Spain.
Santiago Ponce-AixMedical Oncology Service/ 12 de Octubre University Hospital, Madrid, Spain.
Jon ZugazagoitiaMedical Oncology Service/ 12 de Octubre University Hospital, Madrid, Spain.
Irene SansanoPathology Department/ Vall d'Hebron University Hospital, Barcelona, Spain.
Ana EnguitaPathology Department/12 de Octubre University Hospital, Madrid, Spain.
Alejandro Navarro-MendivilMedical Oncology Service/Vall d´Hebron Institute Oncology, Vall d'Hebron University Hospital, Barcelona, Spain.
Alex Martinez-MartiMedical Oncology Service/Vall d´Hebron Institute Oncology, Vall d'Hebron University Hospital, Barcelona, Spain.
Pablo MartinezMedical Oncology Service/Vall d´Hebron Institute Oncology, Vall d'Hebron University Hospital, Barcelona, Spain.
Enriqueta FelipMedical Oncology Service/Vall d´Hebron Institute Oncology, Vall d'Hebron University Hospital, Barcelona, Spain.
Research Institute Hospital 12 de Octubre · ESVall d'Hebron Hospital Universitari · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe increasing incidence and poor outcome associated with MPM requires finding effective treatment for this disease. PD1/PD-L1 pathway plays a central role in tumor immune evasion and appears to be predictive and prognostic marker. PD-L1 is expressed in many different human cancers but its role in MPM has yet to be established. The aim of this study is to evaluate the expression of PD-L1 in MPM.

methods119 MPM patients (p) from two institutions between November 2002 and February 2014 were reviewed. Formalin-fixed, paraffin-embedded tissue was stained with anti-PD-L1 (clone E1L3N). Cases showing more than 1% of tumor cells expression of PD-L1 were considered positive.

resultsPD-L1 was analyzed in 77 p with tumor tissue available and was positive in 20.7% p (14 samples in membrane, 16 in cytoplasm and 4 in immune infiltrate). PD-L1 intensity was weak in 56.2%, moderate in 25% and strong in 18.7% p. There was a significant relationship between PD-L1 expression and histology (PD-L1 expression 37.5% in no-epithelioid tumor and 13.2% in epithelioid; p=0.033). The median survival in p PD-L1 positive was 4.79 vs 16.3 months in p PD-L1 negative (p=0.012).

conclusionsWe have shown PD-L1 is expressed in 20% of patients, associated with no epithelioid histology and poor prognostic in MPM. Our results suggest PD-L1 warrants further exploration in selecting p for immunotherapy.

Indexed as

AdultAgedAged, 80 and overB7-H1 AntigenFemaleFollow-Up StudiesGene ExpressionHumansImmunohistochemistryKaplan-Meier EstimateLung NeoplasmsMaleMesotheliomaMesothelioma, MalignantMiddle AgedPleural NeoplasmsB7-H1 Antigen

Identifiers

PMID25774992
PMCPMC4361537
OpenAlexW2063886011

What OpenQuestion holds

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LicenceCC BY
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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.