Evidence map›Paper›PMID 30917792›Full record

SynthesisBMC cancer2019

The prognostic and clinicopathological significance of PD-L1 expression in patients with diffuse large B-cell lymphoma: a meta-analysis.

Liping Qiu, Hanlu Zheng, Xiaoying Zhao

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in BMC cancer, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 4 pooled it
5.2field-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

29 citing papers in PubMed, 4 syntheses or guidelines pooled it, 48 citations in OpenAlex.

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  5. Axicabtagene Ciloleucel in Combination with Atezolizumab in Patients with Refractory Diffuse Large B-Cell Lymphoma: The Phase 1/2 ZUMA-6 Trial.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026
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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

3 authors at 1 institution in 1 country.

Liping QiuDepartment of Hematology, The Second Affiliated hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China.
Hanlu ZhengDepartment of Hematology, The Second Affiliated hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China.
Xiaoying ZhaoDepartment of Hematology, The Second Affiliated hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China. zrxz@zju.edu.cn.ORCID http://orcid.org/0000-0003-3728-306X
Second Affiliated Hospital of Zhejiang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProgrammed cell death receptor 1 ligand 1 (PD-L1) expression in various tumors, including hematologic malignancies, has recently become a research topic of great interest. We performed a meta-analysis to evaluate the prognostic and clinicopathological value of PD-L1 expressed in tumor cells of patients with diffuse large B-cell lymphoma (DLBCL).

methodsRelevant studies were identified from PubMed, EMBASE, Web of Science and the Cochrane Library. The hazard ratio (HR) and 95% confidence interval (95% CI) were used for analyzing survival outcomes, and the odds ratio (OR) was used for analyzing clinicopathological parameters.

resultsPooled results showed that tumor cell PD-L1 expression is associated with poor overall survival (OS) (HR = 2.128, 95% CI: 1.341-3.378, P = 0.001), the non-germinal center B-cell-like subtype (OR = 2.891, 95% CI: 2.087-4.003, P < 0.000), high international prognostic index score (3-5) (OR = 1.552, 95% CI: 1.111-2.169, P = 0.010), B symptoms (OR = 1.495, 95% Cl: 1.109-2.015, P = 0.008), positive MUM1 expression (OR = 3.365, 95% Cl: 1.578-7.175, P = 0.002) and negative BCL6 expression (OR = 0.414, 95% Cl: 0.217-0.792, P = 0.008). Sensitivity analysis showed that there was no publication bias among these studies.

conclusionsOur meta-analysis supported the idea that tumor cell PD-L1 expression may represent a promising biomarker for predicting poor prognosis and is associated with adverse clinicopathologic features in DLBCL patients.

Indexed as

B7-H1 AntigenBiomarkers, TumorFemaleGene Expression Regulation, NeoplasticHumansInterferon Regulatory Factor-4Interferon Regulatory FactorsLymphoma, Large B-Cell, DiffuseMaleOdds RatioPrognosisProto-Oncogene Proteins c-bcl-6Survival AnalysisB7-H1 AntigenBCL6 protein, humanBiomarkers, TumorCD274 protein, humanInterferon Regulatory Factor-4Interferon Regulatory FactorsProto-Oncogene Proteins c-bcl-6Diffuse large B-cell lymphomaMeta-analysisPrognosisProgrammed cell death receptor 1 ligand 1 (PD-L1)

Identifiers

PMID30917792
PMCPMC6437873
OpenAlexW2947125295

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.