Evidence map›Paper›PMID 34093582›Full record

ArticleFrontiers in immunology2021

An Eight-Gene Hypoxia Signature Predicts Survival in Pancreatic Cancer and Is Associated With an Immunosuppressed Tumor Microenvironment.

Raefa Abou Khouzam, Shyama Prasad Rao, Goutham Hassan Venkatesh, Nagwa Ahmed Zeinelabdin, Stephanie Buart, Maxime Meylan, Manjunath Nimmakayalu, Stéphane Terry, Salem Chouaib

Open access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.0field-weighted citation impact, top 7% 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

33 citing papers in PubMed, 43 citations in OpenAlex.

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  5. Multi-omics exploration of hypoxia in gastric cancer.World journal of surgical oncology · 2026
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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

9 authors at 6 institutions in 4 countries.

Raefa Abou KhouzamThumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates.
Shyama Prasad RaoBioinformatics Division, Yenepoya Research Center, Yenepoya University, Mangalore, India.
Goutham Hassan VenkateshThumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates.
Nagwa Ahmed ZeinelabdinThumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates.
Stephanie BuartINSERM UMR 1186, Integrative Tumor Immunology and Cancer Immunotherapy, Gustave Roussy, EPHE, Faculty De médecine Univ. Paris-Sud, University Paris-Saclay, Villejuif, France.
Maxime MeylanCentre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université de Paris, F-75006, Paris, France.
Manjunath NimmakayaluGraduate Program in Diagnostic Genetics and Genomics, School of Health Professions, MD Anderson Cancer Center, The University of Texas, Houston, TX, United States.
Stéphane TerryINSERM UMR 1186, Integrative Tumor Immunology and Cancer Immunotherapy, Gustave Roussy, EPHE, Faculty De médecine Univ. Paris-Sud, University Paris-Saclay, Villejuif, France.
Salem ChouaibThumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates.
Gulf Medical University · AEInstitut Gustave Roussy · FRImmunologie intégrative des tumeurs et immunothérapie du cancerInserm · FRThe University of Texas MD Anderson Cancer Center · USYenepoya University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intratumoral hypoxia is a widely established element of the pancreatic tumor microenvironment (TME) promoting immune escape, tumor invasion, and progression, while contributing to treatment resistance and poor survival. Despite this critical role, hypoxia is underrepresented in molecular signatures of pancreatic ductal adenocarcinoma (PDA) and concurrent investigations into the hypoxia-immune status are lacking. In this work a literature-based approach was applied to derive an eight-gene hypoxia signature that was validated in fourteen cancer cell lines and in a cohort of PDA. The eight-gene hypoxia signature was significantly associated with overall survival in two distinct PDA datasets and showed independent prognostic value in multivariate analysis. Comparative analysis of tumors according to their hypoxia score (high versus low) determined that tumors with high hypoxia were significantly less enriched in cytotoxic T-cells, and cytolytic activity. In addition, they had lower expression of cytokines and tumor inflammatory markers, pointing to the signature's ability to discern an immune "cold", hypoxic TME. Combining the signature with an immune metric highlighted a worse survival probability in patients with high hypoxia and low immune reactivity, indicating that this approach could further refine survival estimates. Hypoxia as determined by our signature, was significantly associated with certain immune checkpoint inhibitors (ICI) biomarkers, suggesting that the signature reflects an aspect of the TME that is worth pursuing in future clinical trials. This is the first work of its kind in PDA, and our findings on the hypoxia-immune tumor contexture are not only relevant for ICI but could also guide combinatorial hypoxia-mediated therapeutic strategies in this cancer type.

Indexed as

Gene Expression Regulation, NeoplasticTranscriptomeBiomarkers, TumorComputational BiologyDatabases, GeneticFemaleGene Expression ProfilingHumansHypoxiaMaleNeoplasm GradingNeoplasm StagingPancreatic NeoplasmsPrognosisROC CurveTumor MicroenvironmentBiomarkers, Tumorhypoxiaimmunosuppresiveimmunotharapymicroenvironmentpancreatic cancerprognosticsignaturetumor inflammation

Identifiers

PMID34093582
PMCPMC8173254
OpenAlexW3161232073

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.