Evidence map›Paper›PMID 31464648›Full record

ArticleJournal for immunotherapy of cancer2019

A PD-L2-based immune marker signature helps to predict survival in resected pancreatic ductal adenocarcinoma.

Yiyin Zhang, Jin Xu, Jie Hua, Jiang Liu, Chen Liang, Qingcai Meng, Miaoyan Wei, Bo Zhang, Xianjun Yu, Si Shi

Open access · goldAbstract read
In one paragraph

Article in Journal for immunotherapy of cancer, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 2 pooled it
2.6field-weighted citation impact, top 9% 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

49 citing papers in PubMed, 2 syntheses or guidelines pooled it, 60 citations in OpenAlex.

  1. Pooled it
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  5. Strategies to target PD-1/PD-L1 in the tumor microenvironment.Cellular oncology (Dordrecht, Netherlands) · 2026
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  16. Construction and preclinical evaluation of aEuropean journal of nuclear medicine and molecular imaging · 2024
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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

10 authors at 1 institution in 2 countries.

Yiyin ZhangDepartment of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.
Jin XuDepartment of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.
Jie HuaDepartment of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.
Jiang LiuDepartment of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.
Chen LiangDepartment of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.
Qingcai MengDepartment of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.
Miaoyan WeiDepartment of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.
Bo ZhangDepartment of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.
Xianjun YuDepartment of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China. yuxianjun@fudanpci.org.ORCID 0000-0002-6697-7143
Si ShiDepartment of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China. shisi@fudanpci.org.
Shanghai Medical College of Fudan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProgrammed cell death protein 1 (PD-1) is a key immune checkpoint that regulates peripheral tolerance and protects against autoimmunity. Programmed death ligand-2 (PD-L2) is a less studied ligand to PD-1 and has yet to be fully explored, especially in pancreatic ductal adenocarcinoma (PDAC).

methodsIn this study, we performed immunohistochemistry to detect the PD-L2, CD3, CD8, transforming growth factor-β2 (TGF-β2) and FOXP3 levels in paraffin sections from 305 patients with resected PDAC as a training set. Expression levels of intratumoral and stromal immune markers were compared in relation to survival using Kaplan-Meier curves, random survival forest model and survival tree analysis. A multivariable Cox proportional-hazards model of associated markers was used to calculate the risk scores.

resultsPD-L2 was expressed in 71.5% of PDAC samples and showed strong correlations with CD3+, CD8+ T cells and FOXP3+ regulatory T cell densities. High levels of intratumoral PD-L2 and FOXP3 were related to poor survival; only stromal FOXP3 overexpression was associated with worse prognosis. Four patterns generated from survival tree analysis demonstrated that PD-L2

conclusionsOur work highlighted PD-L2 as a promising immunotherapeutic target with prognostic value combined with complex tumor infiltrating cells in PDAC.

Indexed as

AdenocarcinomaBiomarkers, TumorCarcinoma, Pancreatic DuctalCD3 ComplexFemaleFollow-Up StudiesForkhead Transcription FactorsGene Expression Regulation, NeoplasticHumansMaleMiddle AgedPancreatic NeoplasmsPrognosisProgrammed Cell Death 1 Ligand 2 ProteinStromal CellsSurvival RateBiomarkers, TumorCD3 ComplexForkhead Transcription FactorsFOXP3 protein, humanPDCD1LG2 protein, humanProgrammed Cell Death 1 Ligand 2 ProteinTGFB2 protein, humanTransforming Growth Factor beta2Immune markerPancreatic ductal adenocarcinomaPD-L2PrognosisTGF-β2

Identifiers

PMID31464648
PMCPMC6716876
OpenAlexW2970697896

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.