Evidence map›Paper›PMID 27889799›Full record

ArticleCancer immunology, immunotherapy : CII2017

A polymorphism in the promoter region of PD-L1 serves as a binding-site for SP1 and is associated with PD-L1 overexpression and increased occurrence of gastric cancer.

Li-Hua Tao, Xin-Ru Zhou, Fu-Chao Li, Qi Chen, Fan-Yi Meng, Yong Mao, Rui Li, Dong Hua, Hong-Jian Zhang, Wei-Peng Wang and 1 more

Open access · greenAbstract read
In one paragraph

Article in Cancer immunology, immunotherapy : CII, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 3 pooled it
2.7field-weighted citation impact, top 8% 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

36 citing papers in PubMed, 3 syntheses or guidelines pooled it, 59 citations in OpenAlex.

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  11. PD-L1: expression regulation.Blood science (Baltimore, Md.) · 2023
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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

11 authors at 3 institutions in 1 country.

Li-Hua TaoCenter for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Ren-ai Road 199, Suzhou, 215123, China.
Xin-Ru ZhouCenter for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Ren-ai Road 199, Suzhou, 215123, China.
Fu-Chao LiDepartment of Gastroenterology, The First Affiliated Hospital of Soochow University, Shizhi Street 188, Suzhou, 215006, China.
Qi ChenCenter for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Ren-ai Road 199, Suzhou, 215123, China.
Fan-Yi MengCenter for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Ren-ai Road 199, Suzhou, 215123, China.
Yong MaoDepartment of Oncology, The Fourth Affiliated Hospital of Soochow University, Wuxi, 214062, China.
Rui LiDepartment of Gastroenterology, The First Affiliated Hospital of Soochow University, Shizhi Street 188, Suzhou, 215006, China.
Dong HuaDepartment of Oncology, The Fourth Affiliated Hospital of Soochow University, Wuxi, 214062, China.
Hong-Jian ZhangCenter for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Ren-ai Road 199, Suzhou, 215123, China.
Wei-Peng WangCenter for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Ren-ai Road 199, Suzhou, 215123, China. wangweipeng@suda.edu.cn.
Wei-Chang ChenDepartment of Gastroenterology, The First Affiliated Hospital of Soochow University, Shizhi Street 188, Suzhou, 215006, China. weichangchen@126.com.
Soochow University · CNFirst Affiliated Hospital of Soochow University · CNThe Fourth Affiliated Hospital of Soochow University (Suzhou Dushu Lake Hospital)

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PD-L1 is a member of the B7 family co-inhibitory molecules and plays a critical role in tumor immune escape. In this study, we found a polymorphism rs10815225 in the PD-L1 promoter region was significantly associated with the occurrence of gastric cancer. The GG homozygous frequency was higher in the cancer patients than that in the precancerous lesions, which was higher than that in the health controls. This polymorphism locates in the binding-site of Sp1 transcription factor (SP1). The expression level of PD-L1 mRNA in the GG homozygous cancer patients was apparently higher than that in the GC heterozygotes. Luciferase reporter results showed that SP1 bonded to rs10815225 G-allelic PD-L1 promoter instead of C-allelic. Upregulation and knockdown of SP1 resulted in elevation and attenuation of PD-L1 in SGC-7901 cells, respectively. The chromatin immunoprecipitation results further confirmed the binding of SP1 to the promoter of PD-L1. Additionally, rs10815225 was found to be in disequilibrium with a functional polymorphism rs4143815 in the PD-L1 3'-UTR, and the haplotypes of these two polymorphisms were also markedly related to gastric cancer risk. These results revealed a novel mechanism underlying genetic polymorphisms influencing PD-L1 expression modify gastric cancer susceptibility.

Indexed as

B7-H1 AntigenBase SequenceBinding SitesDNA, NeoplasmHumansPolymorphism, GeneticSp1 Transcription FactorStomach NeoplasmsTransfectionB7-H1 AntigenCD274 protein, humanDNA, NeoplasmSP1 protein, humanSp1 Transcription FactorGastric cancerPD-L1PolymorphismSP1

Identifiers

PMID27889799
PMCPMC11028453
OpenAlexW2556426495

What OpenQuestion holds

Textmetadata
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.