Evidence map›Paper›PMID 39441936›Full record

ArticleScience advances2024

Acute contact with profibrotic macrophages mechanically activates fibroblasts via αvβ3 integrin-mediated engagement of Piezo1.

Maya Ezzo, Katrin Spindler, Jun Bo Wang, Dahea Lee, Gilbert Pecoraro, Justin Cowen, Pardis Pakshir, Boris Hinz

Abstract read
In one paragraph

Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing 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

54 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
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  5. Macrophage-Fibroblast Crosstalk in Kidney Injury: A Narrative Review.International journal of molecular sciences · 2026
    Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Targeting myeloid cell-mediated fibrosis through FAK.Nature biomedical engineering · 2026
    Article
  16. Macrophage-Fibroblast Crosstalk Shapes Wound Repair Signaling In Vitro.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  17. Review
  18. Article
  19. Review
  20. 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

8 authors.

Maya EzzoLaboratory of Tissue Repair and Regeneration, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.ORCID 0009-0007-7518-4974
Katrin SpindlerKeenan Research Institute for Biomedical Science of the St. Michael's Hospital, Toronto, Ontario, Canada.
Jun Bo WangLaboratory of Tissue Repair and Regeneration, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.
Dahea LeeKeenan Research Institute for Biomedical Science of the St. Michael's Hospital, Toronto, Ontario, Canada.
Gilbert PecoraroLaboratory of Tissue Repair and Regeneration, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.ORCID 0009-0004-7710-0699
Justin CowenPrincess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.
Pardis PakshirLaboratory of Tissue Repair and Regeneration, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.
Boris HinzLaboratory of Tissue Repair and Regeneration, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.ORCID 0000-0002-0526-393X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fibrosis-excessive scarring after injury-causes >40% of disease-related deaths worldwide. In this misguided repair process, activated fibroblasts drive the destruction of organ architecture by accumulating and contracting extracellular matrix. The resulting stiff scar tissue, in turn, enhances fibroblast contraction-bearing the question of how this positive feedback loop begins. We show that direct contact with profibrotic but not proinflammatory macrophages triggers acute fibroblast contractions. The contractile response depends on αvβ3 integrin expression on macrophages and Piezo1 expression on fibroblasts. The touch of macrophages elevates fibroblast cytosolic calcium within seconds, followed by translocation of the transcription cofactors nuclear factor of activated T cells 1 and Yes-associated protein, which drive fibroblast activation within hours. Intriguingly, macrophages induce mechanical stress in fibroblasts on soft matrix that alone suppresses their spontaneous activation. We propose that acute contact with suitable macrophages mechanically kick-starts fibroblast activation in an otherwise nonpermissive soft environment. The molecular components mediating macrophage-fibroblast mechanotransduction are potential targets for antifibrosis strategies.

Indexed as

FibroblastsIntegrin alphaVbeta3Ion ChannelsMacrophagesMechanotransduction, CellularAnimalsCalciumExtracellular MatrixFibrosisHumansMiceStress, MechanicalCalciumIntegrin alphaVbeta3Ion ChannelsPIEZO1 protein, humanPiezo1 protein, mouse

Identifiers

PMID39441936
PMCPMC11498225

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.