Evidence map›Paper›PMID 33874915›Full record

ArticleBMC cancer2021

PTEN loss correlates with T cell exclusion across human cancers.

Ziying Lin, Lixia Huang, Shao Li Li, Jincui Gu, Xiaoxian Cui, Yanbin Zhou

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
5.4field-weighted citation impact, top 3% 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

42 citing papers in PubMed, 86 citations in OpenAlex.

  1. Review
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  17. Primary and Acquired Resistance to Immunotherapy with Checkpoint Inhibitors in NSCLC: From Bedside to Bench and Back.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2025
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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

6 authors at 1 institution in 1 country.

Ziying LinDepartment of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China. lzying@mail2.sysu.edu.cn.ORCID http://orcid.org/0000-0002-9789-8528
Lixia HuangDepartment of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
Shao Li LiDepartment of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
Jincui GuDepartment of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
Xiaoxian CuiDepartment of Respiratory Medicine, The 8th Affiliated Hospital of Sun Yat-sen University, Shenzhen, China.
Yanbin ZhouDepartment of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China. zhouyb@mail.sysu.edu.cn.
Sun Yat-sen University · CN

Funding

National Natural Science Foundation of China 81570008
6 · The paper itself

Abstract

backgroundRecent evidences had shown that loss in phosphatase and tensin homolog deleted on chromosome 10 (PTEN) was associated with immunotherapy resistance, which may be attributed to the non-T-cell-inflamed tumor microenvironment. The impact of PTEN loss on tumor microenvironment, especially regarding T cell infiltration across tumor types is not well understood.

methodsUtilizing The Cancer Genome Atlas (TCGA) and publicly available dataset of immunotherapy, we explored the correlation of PTEN expressing level or genomic loss with tumor immune microenvironment and response to immunotherapy. We further investigated the involvement of PI3K-AKT-mTOR pathway activation, which is known to be the subsequent effect of PTEN loss, in the immune microenvironment modulation.

resultsWe reveal that PTEN mRNA expression is significantly positively correlated with CD4/CD8A gene expression and T cells infiltration especially T helpers cells, central memory T cell and effector memory T cells in multiples tumor types. Genomic loss of PTEN is associated with reduced CD8+ T cells, type 1 T helper cells, and increased type 2 T helper cells, immunosuppressed genes (e.g. VEGFA) expression. Furthermore, T cell exclusive phenotype is also observed in tumor with PI3K pathway activation or genomic gain in PIK3CA or PIK3CB. PTEN loss and PI3K pathway activation correlate with immunosuppressive microenvironment, especially in terms of T cell exclusion. PTEN loss predict poor therapeutic response and worse survival outcome in patients receiving immunotherapy.

conclusionThese data brings insight into the role of PTEN loss in T cell exclusion and immunotherapy resistance, and inspires further research on immune modulating strategy to augment immunotherapy.

Indexed as

Antineoplastic Agents, ImmunologicalDatabases, GeneticDisease SusceptibilityGene ExpressionGenomicsHumansLymphocytes, Tumor-InfiltratingMolecular Targeted TherapyNeoplasmsPhosphatidylinositol 3-KinaseProto-Oncogene Proteins c-aktPTEN PhosphohydrolaseSignal TransductionT-LymphocytesT-Lymphocyte SubsetsTOR Serine-Threonine KinasesAntineoplastic Agents, ImmunologicalMTOR protein, humanPhosphatidylinositol 3-KinaseProto-Oncogene Proteins c-aktPTEN PhosphohydrolasePTEN protein, humanTOR Serine-Threonine KinasesImmunotherapyPI3K signalingPTENT cellsTumor immune microenvironment

Identifiers

PMID33874915
PMCPMC8054401
OpenAlexW3156718808

What OpenQuestion holds

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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.