Cited by 215Interstitial Lung Diseases and Idiopathic Pulmonary FibrosisTGF-β signaling in diseasesPulmonary Hypertension Research and Treatments

Stretch-induced Activation of Transforming Growth Factor-β1 in Pulmonary Fibrosis

Froese, Aaron R., Shimbori, Chiko, Bellaye, Pierre-Simon, Inman, Mark, Obex, Steffen, Fatima, Safoora, Jenkins, Gisli, Gauldie, Jack +2 more·2016·American Journal of Respiratory and Critical Care Medicine

Abstract

Rationale: Recent findings suggesting transforming growth factor (TGF)-β1 activation by mechanical stimuli in vitro raised the question of whether this phenomenon was relevant in vivo in the context of pulmonary fibrosis. Objectives: To explore the effect of mechanical stress on TGF-β1 activation and its signaling pathway in rat and human fibrotic lung tissue using a novel ex vivo model. Methods: Rat lung fibrosis was induced using transient gene expression of active TGF-β1. Lungs were harvested at Day 14 or 21 and submitted to various stimuli in a tissue bath equipped with a force transducer and servo-controlled arm. Measurements and Main Results: Fibrotic lung strips responded to tensile force by releasing active TGF-β1 from latent stores with subsequent increase in tissue phospho-Smad2/3. In contrast, measurable active TGF-β1 and phospho-Smad2/3 were not induced by mechanical stress in nonfibrotic lungs. Protease inhibition did not affect the release of active TGF-β1. A TGF-β1 receptor inhibitor, Rho-associated protein kinase inhibitor, and αv integrin inhibitor all attenuated mechanical stretch–induced phospho-Smad2/3 in fibrotic lung strips. Furthermore, the induction of phospho-Smad2/3 was enhanced in whole fibrotic rat lungs undergoing ventilation pressure challenge compared with control lungs. Last, tissue slices from human lung with usual interstitial pneumonia submitted to mechanical force showed an increase in TGF-β1 activation and induction of phospho-Smad2/3 in contrast with human nonfibrotic lungs. Conclusions: Mechanical tissue stretch contributes to the development of pulmonary fibrosis via mechanotransduced activation of TGF-β1 in rodent and human pulmonary fibrosis.

Integrity signals

Registry

Crossref · 10.1164/rccm.201508-1638oc

Cites

51 of 51 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Drugs targeting metabolism pathways are approved or in clinical trials for cancer with known safety profiles, fueling hope for future application in fibrotic diseases.

    “However drugs targeting metabolism pathways are approved or in clinical trials for treatment of cancer with known safety profiles, fueling the hope for future application in fibrotic diseases57.”

    From Fibrosis: from mechanisms to medicines (2020) · cites this paper as [57]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Froese, A. R., Shimbori, C., Bellaye, P.-S., Inman, M., Obex, S., Fatima, S., Jenkins, G., Gauldie, J., Ask, K., & Kolb, M.
Affiliations
  • St. Joseph’s Healthcare Hamilton (CA)
  • University of Nottingham (GB)
  • McMaster University (CA)
Corresponding author
Kolb, Martin
Venue
American Journal of Respiratory and Critical Care Medicine
Published
2016-07-01
Volume
194
Issue
1
Pages
84-96
ISSN
  • 1073-449X (ISSN-L)
  • 1535-4970
OpenAlex
W2260133387
Cited by
214
References
51
Citations by year
2026: 11 · 2025: 20 · 2024: 14 · 2023: 15 · 2022: 25 · 2021: 33 · 2020: 22 · 2019: 27 · 2018: 22 · 2017: 18 · 2016: 6
FWCI
21.75
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Respiratory and Critical Care Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
Pulmonary Fibrosis Foundation I. M. Rosenzweig Junior Investigator Award
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Pulmonary Hypertension Research and Treatments
Keywords
pulmonary fibrosis, TGF-β1, mechanical stretch, mechanotransduction, Smad2/3 phosphorylation, latent TGF-beta1 activation, usual interstitial pneumonia, Rho kinase, ITGAV, ventilation pressure
MeSH terms
Animals, Disease Models, Animal, Humans, Lung, Pulmonary Fibrosis, Stress, Mechanical, Signal Transduction, Rats, Transforming Growth Factor beta1

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review