Evidence map›Paper›PMID 42041553›Full record

ArticleCells2026

Hypoxia-Induced Fibroblast IL-6 Promotes Immunosuppressive Macrophage Phenotypes in Pancreatic Cancer.

Sean Hannifin, Ashley M Mello, Tenzin Ngodup, Nam Hoon Kim, Marina Pasca di Magliano, Kyoung Eun Lee

Abstract read
In one paragraph

Article in Cells, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Review
  2. Hypoxia Impairs CD8Cancers · 2026
    Article
  3. Review
  4. 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

6 authors.

Sean HannifinProgram in Immunology, University of Michigan, Ann Arbor, MI 48109, USA.ORCID 0000-0003-2925-4808
Ashley M MelloProgram in Immunology, University of Michigan, Ann Arbor, MI 48109, USA.ORCID 0000-0002-3280-181X
Tenzin NgodupDepartment of Pharmacology, University of Michigan, Ann Arbor, MI 48109, USA.
Nam Hoon KimDepartment of Pharmacology, University of Michigan, Ann Arbor, MI 48109, USA.
Marina Pasca di MaglianoRogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA.
Kyoung Eun LeeDepartment of Pharmacology, University of Michigan, Ann Arbor, MI 48109, USA.ORCID 0000-0002-3955-7389

Funding

Role of Hypoxia in Shaping the Tumor Stroma in Pancreatic CancerR01CA269025 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Kyoung Eun Lee · 2023 to 2026
$1.7M
Hypoxic regulation of macrophage migration and function via fibroblast reprogramming in pancreatic cancerF31CA281194 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Sean Matthew Hannifin · 2023 to 2026
$169k
Role of hypoxia in CD8+ T cell exclusion and suppression in pancreatic cancerF31CA281079 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Ashley Mello · 2023 to 2026
$167k
NCI NIH HHS F31 CA281079NCI NIH HHS F31 CA281194NCI NIH HHS R01 CA269025NIH HHS 4R01CA260752-04NIH HHS 5F31CA281079-03NIH HHS 5F31CA281194-03NIH HHS 5F31CA284520-03NIH HHS 5R01CA268426-03NIH HHS 5R01CA269025-03NIH HHS 5R01CA271510-04NIH HHS 5T32AI007413-30NIH HHS 5T32GM140223-05U-M Rogel Cancer Center Rogel Scholar Award
6 · The paper itself

Abstract

Pancreatic ductal adenocarcinoma (PDAC) is a lethal malignancy characterized by a dense fibroinflammatory stroma and profound hypoxia. Using pancreatic stellate cell-tumor organoid coculture models and single-cell RNA sequencing analyses, we uncover that hypoxia-driven fibroblast reprogramming promotes immunosuppressive macrophage phenotypes in PDAC. Mechanistically, hypoxia acts through tumor-fibroblast crosstalk to increase IL-6 expression in fibroblasts; in turn, fibroblast-derived IL-6 induces expression of arginase 1 (ARG1), a key mediator of immunosuppression, in macrophages via activation of the JAK/STAT signaling pathway. Consistent with these findings, macrophages enriched for hypoxia signatures are strongly associated with elevated immunosuppression programs and IL6/JAK/STAT3 signaling signatures in PDAC. Our study reveals a paracrine mechanism by which hypoxia coordinates tumor cell, fibroblast, and macrophage interactions to promote immune suppression in PDAC.

Indexed as

Carcinoma, Pancreatic DuctalFibroblastsInterleukin-6MacrophagesPancreatic NeoplasmsAnimalsArginaseCell HypoxiaCell Line, TumorGene Expression Regulation, NeoplasticHumansJanus KinasesPhenotypeSignal TransductionSTAT3 Transcription FactorArginaseInterleukin-6Janus KinasesSTAT3 Transcription FactorARG1fibroblasthypoxiaIL6JAKmacrophagepancreatic cancer

Identifiers

PMID42041553
PMCPMC13114822

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.