Evidence map›Paper›PMID 36592213›Full record

ArticleJournal of cancer research and clinical oncology2023

Identification and validation of a PD-L1-related signature from mass spectrometry in gastric cancer.

Xiancong Chen, Deli Mao, Dongsheng Li, Wenchao Li, Hongfa Wei, Cuncan Deng, Hengxing Chen, Changhua Zhang

Open access · hybridAbstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.5field-weighted citation impact, top 29% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
  2. Review
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 2 institutions in 1 country.

Xiancong Chen *Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China.
Deli Mao *Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China.
Dongsheng LiDigestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China.
Wenchao LiDigestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China.
Hongfa WeiDigestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China.
Cuncan DengDigestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China.
Hengxing ChenDigestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China. chenhx49@mail2.sysu.edu.cn.
Changhua ZhangDigestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China. zhchangh@mail.sysu.edu.cn.
The Seventh Affiliated Hospital of Sun Yat-sen University · CNSun Yat-sen University · CN

Funding

Guangdong Provincial Key Laboratory of Digestive Cancer Research 2021B1212040006Research start-up fund of part-time PI, SAHSYSU ZSQYJZPI202001Sanming Project of Medicine in Shenzhen SZSM201911010Shenzhen Key Medical Discipline Construction Fund SZXK016Shenzhen Sustainable Project KCXFZ202002011010593
6 · The paper itself

Abstract

backgroundAccording to the guidelines, PD-L1 expression is a critical indicator for guiding immunotherapy application. According to certain studies, regardless of PD-L1 expression, immunotherapy could be advantageous for individuals with gastric cancer. Therefore, new scoring systems or biomarkers are required to enhance treatment strategies.

methodsMass spectrometry and machine learning were used to search for strongly related PD-L1 genes, and the NMF approach was then used to separate gastric cancer patients into two categories. Differentially expressed genes (DEGs) between the two subtypes identified in this investigation were utilized to develop the UBscore predictive model, which was verified by the Gene Expression Omnibus (GEO) database. Coimmunoprecipitation, protein expression, and natural killing (NK) cell coculture experiments were conducted to validate the findings.

resultsA total of 123 proteins were identified as PD-L1 interactors that are substantially enriched in the proteasome complex at the mRNA level. Using random forest, 30 UPS genes were discovered in the GSE66229 cohort, and ANAPC7 was experimentally verified as one of 123 PD-L1 interactors. Depending on the expression of PD-L1 and ANAPC7, patients were separated into two subgroups with vastly distinct immune infiltration. Low UBscore was related to increased tumor mutation burden (TMB) and microsatellite instability-high (MSI-H). In addition, chemotherapy medications were more effective in individuals with a low UBscore. Finally, we discovered that ANAPC7 might lead to the incidence of immunological escape when cocultured with NK-92 cells.

conclusionAccording to our analysis of the PD-L1-related signature in GC, the UBscore played a crucial role in prognosis and had a strong relationship with TMB, MSI, and chemotherapeutic drug sensitivity. This research lays the groundwork for improving GC patient prognosis and treatment response.

Indexed as

Stomach NeoplasmsApc7 Subunit, Anaphase-Promoting Complex-CyclosomeB7-H1 AntigenBiomarkers, TumorHumansMass SpectrometryMicrosatellite InstabilityPrognosisApc7 Subunit, Anaphase-Promoting Complex-CyclosomeB7-H1 AntigenBiomarkers, TumorImmunotherapyMachine learningMass spectrometryPD-L1Tumor microenvironment

Identifiers

PMID36592213
PMCPMC10356661
OpenAlexW4313424001

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.