Evidence map›Paper›PMID 31152305›Full record

ArticleJournal of neuro-oncology2019

Triptolide reverses helper T cell inhibition and down-regulates IFN-γ induced PD-L1 expression in glioma cell lines.

Lei Zhang, John S Yu

Open access · greenAbstract read
In one paragraph

Article in Journal of neuro-oncology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

21 citing papers in PubMed, 34 citations in OpenAlex.

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  18. Therapeutic applications and delivery systems for triptolide.Drug delivery and translational research · 2020
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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

2 authors at 1 institution in 2 countries.

Lei ZhangDepartment of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, USA.
John S YuDepartment of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, USA. john.yu@cshs.org.ORCID http://orcid.org/0000-0001-9024-2182
Cedars-Sinai Medical Center · US

Funding

Bone marrow derived neural stem cell therapy for gliomaR01NS048959 · NINDS · CEDARS-SINAI MEDICAL CENTER · PI YU, JOHN S · 2004 to 2014
$3.1M
Bone marrow derived neural stem cell therapy for gliomaR56NS048959 · NINDS · CEDARS-SINAI MEDICAL CENTER · PI YU, JOHN S · 2010 to 2010
$413k
Targeting cancer stem cells for brain tumor therapyR21CA131999 · NCI · CEDARS-SINAI MEDICAL CENTER · PI YU, JOHN S · 2008 to 2009
$402k
Milken Family Foundation FastercuresNCI NIH HHS R21 CA131999NINDS NIH HHS R01 NS048959NINDS NIH HHS R56 NS048959
6 · The paper itself

Abstract

purposeImmunosuppression is one of hallmark features in many cancers including glioma. Triptolide, a natural compound purified from the Chinese herb Tripterygium wilfordii, has been reported to inhibit PD-L1 otherwise known as the B7 homolog 1 (B7-H1) expression in breast cancer. The purpose of this paper is to test the effects of Triptolide on T cell inhibition in glioma cells.

methodsWe labeled T cells and cocultured with Interferon-γ (IFN-γ) and Triptolide treated glioma cells. The effect on inhibition of T cells as well as subtypes of T cells was measured by Flow Cytometry. We also tested the expression of PD-L1 in six glioma cell lines.

resultsWe found that Triptolide could reverse T cell inhibition especially CD4+ T cell and induced IFN-γ secretion. In addition, Triptolide could also induce interleukin-2 secretion and overcome interleukin-10 inhibition caused by glioma cells under IFN-γ treated condition. Triptolide could also down-regulate IFN-γ induced PD-L1 surface expression in glioma cells.

conclusionsThese results suggest that Triptolide may be used to reverse CD4+ T cell inhibition caused by glioma cells and is an alternative candidate for targeting PD-L1, one of the checkpoint inhibitors for the treatment of glioma.

Indexed as

Antineoplastic Agents, AlkylatingB7-H1 AntigenCD4-Positive T-LymphocytesCoculture TechniquesDiterpenesDown-RegulationEpoxy CompoundsGene Expression Regulation, NeoplasticGliomaHumansInterferon-gammaPhenanthrenesT-Lymphocytes, Helper-InducerTumor Cells, CulturedAntineoplastic Agents, AlkylatingB7-H1 AntigenCD274 protein, humanDiterpenesEpoxy CompoundsInterferon-gammaPhenanthrenestriptolideCD4+ T cellsGliomaPD-L1Triptolide

Identifiers

PMID31152305
PMCPMC6628928
OpenAlexW2947860834

What OpenQuestion holds

Textmetadata
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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.