Evidence map›Paper›PMID 30714229›Full record

ArticleCell proliferation2019

PD-1/PD-L1 blockade rescue exhausted CD8+ T cells in gastrointestinal stromal tumours via the PI3K/Akt/mTOR signalling pathway.

Rui Zhao, Yinghan Song, Yong Wang, Yuqian Huang, Zhigui Li, Yaping Cui, Mengshi Yi, Lin Xia, Wen Zhuang, Xiaoting Wu and 1 more

Open access · goldAbstract read
In one paragraph

Article in Cell proliferation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed, 2 pooled it
11.3field-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

98 citing papers in PubMed, 2 syntheses or guidelines pooled it, 140 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Molecular Mechanisms and Immune Regulation in Prostate Cancer: A Review.International journal of molecular sciences · 2026
    Review
  4. Understanding the Therapeutic Potential of PD-1 Agonism in Inflammatory and Autoimmune Disorders.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026
    Review
  5. Review
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  8. Multi-omics profiling revealsTranslational lung cancer research · 2026
    Article
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  12. Review
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38 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

11 authors at 1 institution in 1 country.

Rui ZhaoDepartment of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China.ORCID https://orcid.org/0000-0003-1783-4610
Yinghan SongDepartment of Day Surgery Center, West China Hospital, Sichuan University, Chengdu, China.
Yong WangDepartment of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China.
Yuqian HuangDepartment of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China.
Zhigui LiDepartment of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China.
Yaping CuiDepartment of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China.
Mengshi YiDepartment of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China.
Lin XiaDepartment of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China.
Wen ZhuangDepartment of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China.
Xiaoting WuDepartment of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China.
Yong ZhouDepartment of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China.
Sichuan University · CN

Funding

Natural Science Foundations of China 0040205301919Natural Science Foundations of China 0040205401430Sichuan Provincial Science and Technology Support Project 2016SZ0047
6 · The paper itself

Abstract

objectivesAlthough targeted therapy has revolutionized the treatment of gastrointestinal stromal tumours (GIST), it is almost never curative in GIST, and resistance commonly develops. One potential strategy is to combine targeted therapy with immunotherapy. MATERIALS AND

methodsWe first studied Programmed cell death 1 ligand 1 (PD-L1) expression and tumour-infiltrating T cells (TILs) in GIST. IFN-γ was used to induce the upregulation of PD-L1 expression in GIST-882 cells, a well-known GIST cell line. CD8+ T-cell apoptosis was determined by flow cytometry. The PI3K/Akt/mTOR levels in CD8+ T cells were examined by Western blotting.

resultsPD-L1 expression was an independent factor of poor prognosis in GIST and resulted in exhausted T cells in the TILs population or the blood. Then, we found that PD-L1 blockade alone could not increase tumour cell apoptosis in GIST. The apoptosis rate of CD8+ T cells was higher when T cells were cultured with PD-L1+ GIST-882 cells (GIST-882 cells with high PD-L1 expression) than when T cells were cultured with control GIST-882 cells. However, when the PD-L1 blockade was used, the apoptosis rates of the CD8+ T cells in the two groups became similar. Then, Western blotting showed the PI3K/Akt/mTOR levels of the CD8+ T cells rescued by the PD-1/PD-L1 blockade were higher than those of the CD8+ T cells not treated with the PD-1/PD-L1 blockade.

conclusionsPD-L1 expression was an independent poor prognosis factor in GIST. PD-1/PD-L1 blockade rescued exhausted CD8+ T cells in GIST via the PI3K/Akt/mTOR signalling pathway. In GIST, PD-1/PD-L1 not only function as predictive biomarkers but also improve current therapies as treatment targets.

Indexed as

ApoptosisB7-H1 AntigenCD8-Positive T-LymphocytesCell Line, TumorGastrointestinal NeoplasmsGastrointestinal Stromal TumorsHumansImatinib MesylateInterferon-gammaLymphocytes, Tumor-InfiltratingPhosphatidylinositol 3-KinasesPrognosisProgrammed Cell Death 1 ReceptorProto-Oncogene Proteins c-aktRNA, MessengerRNA, NeoplasmB7-H1 AntigenCD274 protein, humanImatinib MesylateInterferon-gammaMTOR protein, humanPDCD1 protein, humanPhosphatidylinositol 3-KinasesProgrammed Cell Death 1 ReceptorProto-Oncogene Proteins c-aktRNA, MessengerRNA, NeoplasmTOR Serine-Threonine Kinasesexhausted CD8+ T cellgastrointestinal stromal tumourPD-1/PD-L1PI3K/Akt/mTOR

Identifiers

PMID30714229
PMCPMC6536456
OpenAlexW2914316591

What OpenQuestion holds

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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.