Evidence map›Paper›PMID 35188460›Full record

ArticleeLife2022

Pseudohypoxic HIF pathway activation dysregulates collagen structure-function in human lung fibrosis.

Christopher J Brereton, Liudi Yao, Elizabeth R Davies, Yilu Zhou, Milica Vukmirovic, Joseph A Bell, Siyuan Wang, Robert A Ridley, Lareb S N Dean, Orestis G Andriotis and 19 more

Open access · goldAbstract read
In one paragraph

Article in eLife, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
17.2field-weighted citation impact, top 1% 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

46 citing papers in PubMed, 71 citations in OpenAlex.

  1. Hallmarks of the ageing lung: 10 years later.The European respiratory journal · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Mechanobiology and Resolution of Lung Fibrosis.Annual review of physiology · 2026
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

29 authors at 7 institutions in 6 countries.

Christopher J Brereton *Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.ORCID 0000-0001-8302-702X
Liudi Yao *Biological Sciences, Faculty of Environmental and Life Sciences, University of Southampton, Southampton, United Kingdom.
Elizabeth R DaviesClinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.ORCID 0000-0002-8629-8324
Yilu ZhouBiological Sciences, Faculty of Environmental and Life Sciences, University of Southampton, Southampton, United Kingdom.
Milica VukmirovicSection of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Yale University School of Medicine, New Haven, United States.
Joseph A BellClinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.
Siyuan WangBiological Sciences, Faculty of Environmental and Life Sciences, University of Southampton, Southampton, United Kingdom.
Robert A RidleyClinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.
Lareb S N DeanClinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.ORCID 0000-0002-8703-9236
Orestis G AndriotisInstitute of Lightweight Design and Structural Biomechanics, TU Wien, Vienna, Austria.
Franco ConfortiClinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.
Lennart BrewitzDepartment of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, Chemistry Research Laboratory, Oxford, United Kingdom.
Soran MohammedSchool of Chemistry, University of Southampton, Southampton, United Kingdom.ORCID 0000-0002-3882-6129
Timothy WallisClinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.
Ali TavassoliSchool of Chemistry, University of Southampton, Southampton, United Kingdom.
Rob M EwingBiological Sciences, Faculty of Environmental and Life Sciences, University of Southampton, Southampton, United Kingdom.
Aiman AlzetaniNIHR Southampton Biomedical Research Centre, University Hospital Southampton, Southampton, United Kingdom.
Benjamin G MarshallNIHR Southampton Biomedical Research Centre, University Hospital Southampton, Southampton, United Kingdom.ORCID 0000-0003-0946-0399
Sophie V FletcherNIHR Southampton Biomedical Research Centre, University Hospital Southampton, Southampton, United Kingdom.
Philipp J ThurnerInstitute of Lightweight Design and Structural Biomechanics, TU Wien, Vienna, Austria.
Aurelie FabreDepartment of Histopathology, St. Vincent's University Hospital & UCD School of Medicine, University College Dublin, Dublin, Ireland.
Naftali KaminskiSection of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Yale University School of Medicine, New Haven, United States.ORCID 0000-0001-5917-4601
Luca RicheldiNIHR Southampton Biomedical Research Centre, University Hospital Southampton, Southampton, United Kingdom.
Atul BhaskarFaculty of Engineering and Physical Sciences, University of Southampton, Southampton, United Kingdom.
Christopher J SchofieldDepartment of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, Chemistry Research Laboratory, Oxford, United Kingdom.ORCID 0000-0002-0290-6565
Matthew LoxhamClinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.ORCID 0000-0001-6459-538X
Donna E DaviesClinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.ORCID 0000-0002-5117-2991
Yihua WangNIHR Southampton Biomedical Research Centre, University Hospital Southampton, Southampton, United Kingdom.ORCID 0000-0001-5561-0648
Mark G JonesClinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.ORCID 0000-0001-6308-6014
University Hospital Southampton NHS Foundation Trust · GBUniversity of Southampton · GBTU Wien · AT3M (United States) · USUniversità Cattolica del Sacro Cuore · ITUniversity College Dublin · IEYale University · US

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Biotechnology and Biological Sciences Research Council BB/PO11365/1Cancer Research UK 16466Department of HealthMedical Research Council MR/S025480/1MRF_ MRF-091-0003-RG-CONFONCATS NIH HHS UL1 TR001863Wellcome TrustWellcome Trust 100638/Z/12/Z
6 · The paper itself

Abstract

Extracellular matrix (ECM) stiffening with downstream activation of mechanosensitive pathways is strongly implicated in fibrosis. We previously reported that altered collagen nanoarchitecture is a key determinant of pathogenetic ECM structure-function in human fibrosis (Jones et al., 2018). Here, through human tissue, bioinformatic and ex vivo studies we provide evidence that hypoxia-inducible factor (HIF) pathway activation is a critical pathway for this process regardless of the oxygen status (pseudohypoxia). Whilst TGFβ increased the rate of fibrillar collagen synthesis, HIF pathway activation was required to dysregulate post-translational modification of fibrillar collagen, promoting pyridinoline cross-linking, altering collagen nanostructure, and increasing tissue stiffness. In vitro, knockdown of Factor Inhibiting HIF (FIH), which modulates HIF activity, or oxidative stress caused pseudohypoxic HIF activation in the normal fibroblasts. By contrast, endogenous FIH activity was reduced in fibroblasts from patients with lung fibrosis in association with significantly increased normoxic HIF pathway activation. In human lung fibrosis tissue, HIF-mediated signalling was increased at sites of active fibrogenesis whilst subpopulations of human lung fibrosis mesenchymal cells had increases in both HIF and oxidative stress scores. Our data demonstrate that oxidative stress can drive pseudohypoxic HIF pathway activation which is a critical regulator of pathogenetic collagen structure-function in fibrosis.

Indexed as

BiomarkersCells, CulturedCollagenFibroblastsGene Expression RegulationHumansHypoxia-Inducible Factor 1Mixed Function OxygenasesOxidative StressPulmonary FibrosisRepressor ProteinsTransforming Growth Factor betaBiomarkersCollagenHIF1AN protein, humanHypoxia-Inducible Factor 1Mixed Function OxygenasesRepressor ProteinsTransforming Growth Factor betacell biologyCollagenfibrosishumanLung

Identifiers

PMID35188460
PMCPMC8860444
OpenAlexW4225689990

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.