Evidence map›Paper›PMID 31399559›Full record

ArticleExperimental & molecular medicine2019

Exosomal PD-L1 promotes tumor growth through immune escape in non-small cell lung cancer.

Dong Ha Kim, HyeongRyul Kim, Yun Jung Choi, Seon Ye Kim, Jung-Eun Lee, Ki Jung Sung, Young Hoon Sung, Chan-Gi Pack, Min-Kyo Jung, Buhm Han and 7 more

Open access · goldAbstract read
In one paragraph

Article in Experimental & molecular medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 251 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
251citing papers in PubMed, 4 pooled it
16.2field-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

251 citing papers in PubMed, 4 syntheses or guidelines pooled it, 378 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Trial
  6. From Tumour to Bloodstream: Advancing PD-L1 Testing With Liquid Biopsies in Non-Small Cell Lung Cancer.Cytopathology : official journal of the British Society for Clinical Cytology · 2026
    Review
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  16. Extracellular vesicle-associated PD-L1 induces CD4Cell communication and signaling : CCS · 2026
    Article
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  18. Article
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191 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

17 authors at 2 institutions in 1 country.

Dong Ha KimDepartment of Pulmonology and Critical Care Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
HyeongRyul KimDepartment of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
Yun Jung ChoiDepartment of Pulmonology and Critical Care Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
Seon Ye KimDepartment of Pulmonology and Critical Care Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
Jung-Eun LeeDepartment of Pulmonology and Critical Care Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
Ki Jung SungDepartment of Pulmonology and Critical Care Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
Young Hoon SungAsan Institute for Life Sciences, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
Chan-Gi PackAsan Institute for Life Sciences, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.ORCID http://orcid.org/0000-0002-6578-3099
Min-Kyo JungAsan Institute for Life Sciences, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
Buhm HanDepartment of Convergence Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.ORCID http://orcid.org/0000-0002-2266-5164
Kunhee KimDepartment of Biomedical Sciences, Asan Medical Center, AMIST, University of Ulsan College of Medicine, Seoul, 05505, South Korea.
Woo Sung KimDepartment of Pulmonology and Critical Care Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
Soo Jeong NamDepartment of Pathology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
Chang-Min ChoiDepartment of Pulmonology and Critical Care Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
Miyong YunDepartment of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, 05006, South Korea.
Jae Cheol Lee *Department of Oncology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea. jclee@amc.seoul.kr.
Jin Kyung Rho *Department of Convergence Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea. jkrho@amc.seoul.kr.
Ulsan College · KRSejong University · KR

Funding

Ministry of Health and Welfare (Ministry of Health, Welfare and Family Affairs) HA16C0023National Research Foundation of Korea (NRF) 2015R1DA1A01057022
6 · The paper itself

Abstract

Programmed cell death protein-1/programmed cell death ligand-1 (PD-1/PD-L1) pathway blockade is a promising new cancer therapy. Although PD-1/PD-L1 treatment has yielded clinical benefits in several types of cancer, further studies are required to clarify predictive biomarkers for drug efficacy and to understand the fundamental mechanism of PD-1/PD-L1 interaction between host and tumor cells. Here, we show that exosomes derived from lung cancer cells express PD-L1 and play a role in immune escape by reducing T-cell activity and promoting tumor growth. The abundance of PD-L1 on exosomes represented the quantity of PD-L1 expression on cell surfaces. Exosomes containing PD-L1 inhibited interferon-gamma (IFN-γ) secretion by Jurkat T cells. IFN-γ secretion was restored by PD-L1 knockout or masking on the exosomes. Both forced expression of PD-L1 on cells without PD-L1 and treatment with exosomes containing PD-L1 enhanced tumor growth in vivo. PD-L1 was present on exosomes isolated from the plasma of patients with non-small cell lung cancer, and its abundance in exosomes was correlated with PD-L1 positivity in tumor tissues. Exosomes can impair immune functions by reducing cytokine production and inducing apoptosis in CD8

Indexed as

A549 CellsAnimalsB7-H1 AntigenCarcinoma, Non-Small-Cell LungCD8-Positive T-LymphocytesCell ProliferationCells, CulturedExosomesHEK293 CellsHeterograftsHumansJurkat CellsLung NeoplasmsMaleMiceMice, Inbred C57BLB7-H1 AntigenCD274 protein, human

Identifiers

PMID31399559
PMCPMC6802663
OpenAlexW2967202427

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.