Evidence map›Paper›PMID 31933885›Full record

ArticleInternational journal of clinical and experimental pathology2019

Distribution of PD-L1 expression and its relationship with clinicopathological variables: an audit from 1071 cases of surgically resected non-small cell lung cancer.

Qian Chen, Yi-Yun Fu, Qiao-Ni Yue, Qian Wu, Yuan Tang, Wei-Ya Wang, Yong-Sheng Wang, Li-Li Jiang

Open access · greenAbstract read
In one paragraph

Article in International journal of clinical and experimental pathology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.1field-weighted citation impact, top 11% 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

27 citing papers in PubMed, 41 citations in OpenAlex.

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  20. An advanced non-small cell lung cancer patient withAnnals of translational medicine · 2022
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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

8 authors at 1 institution in 1 country.

Qian ChenDepartment of Thoracic Oncology, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center, West China Hospital, Sichuan University Chengdu, Sichuan Province, China.
Yi-Yun FuDepartment of Pathology, West China Hospital, Sichuan University Chengdu, Sichuan Province, China.
Qiao-Ni YueDepartment of Pathology, West China Hospital, Sichuan University Chengdu, Sichuan Province, China.
Qian WuDepartment of Pathology, West China Hospital, Sichuan University Chengdu, Sichuan Province, China.
Yuan TangDepartment of Pathology, West China Hospital, Sichuan University Chengdu, Sichuan Province, China.
Wei-Ya WangDepartment of Pathology, West China Hospital, Sichuan University Chengdu, Sichuan Province, China.
Yong-Sheng WangDepartment of Thoracic Oncology, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center, West China Hospital, Sichuan University Chengdu, Sichuan Province, China.
Li-Li JiangDepartment of Pathology, West China Hospital, Sichuan University Chengdu, Sichuan Province, China.
Sichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProgrammed death ligand 1 (PD-L1) was reported to predict the response of immunotherapy; however, the association between PD-L1 expression and clinicopathologic characteristics has yet to be elucidated in non-small cell lung cancer (NSCLCs). MATERIALS AND

methodsWe reviewed PDL1 expression investigated by immunohistochemical analysis using FFPE tissue in a total of 1071 cases of primary or metastatic NSCLC tissues analyzed between 2015-2017, and evaluated the association between PD-L1 expression and the clinicopathologic characteristics.

resultsPD-L1 expression was observed in 361 (33.7%) cases with positive staining in at least 1% tumor cells and 116 (10.8%) cases had positive staining in ≥50% tumor cells. The PD-L1 positive prevalence was significantly higher in squamous cell carcinoma (SCC) than in adenocarcinoma (AD). In the AD subgroup, PD-L1 expression on tumors was higher in males and smokers, and with high histologic grade, relative high T, N, M status, advanced AJCC stage, and in ALK rearrangement patients. However, EGFR mutated patients showed relatively lower PD-L1 expression than wild type patients.

conclusionThis study revealed the unique distribution of PD-L1 expression with clinicopathologic features in East Asian NSCLCs in a single, large cohort of patients. Since immunohistochemistry of the PD-L1 protein (PD-L1 IHC) is the only clinically approved predictive biomarker for anti-PD-1/-PD-L1 therapy currently, our outcomes could help to stratify patients to ensure selection of those who would most benefit from PD-1/PD- L1 inhibitor therapy.

Indexed as

immune checkpointimmunotherapynon-small cell lung cancer (NSCLC)PD-1PD-L1

Identifiers

PMID31933885
PMCPMC6945142
OpenAlexW3005999799

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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.