Evidence map›Paper›PMID 33620088›Full record

Trial reportBritish journal of haematology2021

Soluble PD-L1 is a promising disease biomarker but does not reflect tissue expression in classic Hodgkin lymphoma.

Johanna Veldman, Zainab N D Alsada, Anke van den Berg, Wouter J Plattel, Arjan Diepstra, Lydia Visser

Open access · hybridAbstract readClinical Trial
In one paragraph

Trial report in British journal of haematology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

14 citing papers in PubMed, 17 citations in OpenAlex.

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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 1 institution in 1 country.

Johanna VeldmanDepartment of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.ORCID 0000-0003-4253-0870
Zainab N D AlsadaDepartment of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Anke van den BergDepartment of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Wouter J PlattelDepartment of Hematology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.ORCID 0000-0001-9828-9460
Arjan DiepstraDepartment of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.ORCID 0000-0001-9239-1050
Lydia VisserDepartment of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
University Medical Center Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Individually, tissue and soluble markers involved in the programmed cell death protein 1/programmed death-ligand (PD-1/PD-L) axis have been described as biomarkers with clinical value in classical Hodgkin lymphoma (cHL). In the context of the success of immune checkpoint blockade therapy in cHL, it is interesting to discover whether plasma levels of proteins in the PD-1/PD-L axis are a reflection of expression by the corresponding tissue. Paired tissue and plasma samples of cHL patients were collected and analysed for PD-1, PD-L1 and PD-L2 levels. In addition, vascular endothelial growth factor (VEGF) and CD83, molecules regarded to influence the expression of PD-1, PD-L1 and/or PD-L2, were included. PD-L1 was upregulated in the plasma of cHL patients compared to healthy controls and correlated well with several clinical parameters. Strong PD-L1 expression in the tumour microenvironment contributed to high soluble (s)PD-L1 levels, although there was no direct correlation between plasma PD-L1 levels and total expression of PD-L1 in corresponding cHL tissue. Interestingly, we observed a positive correlation between VEGF and PD-1 levels in both tissue and plasma. In conclusion, although PD-L1 is a promising soluble biomarker in cHL, its levels do not reflect the total tissue expression. Future studies focusing on PD-L1 as a predictor for immune checkpoint treatment response, should include both biopsy and plasma samples.

Indexed as

Gene Expression Regulation, NeoplasticTumor MicroenvironmentAdolescentAdultAgedB7-H1 AntigenBiomarkers, TumorFemaleHodgkin DiseaseHumansMaleMiddle AgedNeoplasm ProteinsB7-H1 AntigenBiomarkers, TumorCD274 protein, humanNeoplasm ProteinsHodgkin lymphomaimmune checkpointPD-1PD-L1plasma biomarkersVEGF

Identifiers

PMID33620088
PMCPMC8247981
OpenAlexW3130797806

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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.