Cited by 82Cellular Mechanics and InteractionsWound Healing and TreatmentsDevelopmental Biology and Gene Regulation

Recapitulation of morphogenetic cell shape changes enables wound re-epithelialisation

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Razzell, William, Wood, Will, Martin, Paul·2014·Development

Abstract

Wound repair is a fundamental, conserved mechanism for maintaining tissue homeostasis and shares many parallels with embryonic morphogenesis. Small wounds in simple epithelia rapidly assemble a contractile actomyosin cable at their leading edge, as well as dynamic filopodia that finally knit the wound edges together. Most studies of wound re-epithelialisation have focused on the actin machineries that assemble in the leading edge of front row cells and that resemble the contractile mechanisms that drive morphogenetic episodes, including Drosophila dorsal closure, but, clearly, multiple cell rows back must also contribute for efficient repair of the wound. Here, we examine the role of cells back from the wound edge and show that they also stretch towards the wound and cells anterior-posterior to the wound edge rearrange their junctions with neighbours to drive cell intercalation events. This process in anterior-posterior cells is active and dependent on pulses of actomyosin that lead to ratcheted shrinkage of junctions; the actomyosin pulses are targeted to breaks in the cell polarity protein Par3 at cell vertices. Inhibiting actomyosin dynamics back from the leading edge prevents junction shrinkage and inhibits the wound edge from advancing. These events recapitulate cell rearrangements that occur during germband extension, in which intercalation events drive the elongation of tissues.

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Crossref · 10.1242/dev.107045

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  • A recent Drosophila study showed active cell shape changes and junctional alterations several rows back from the wound edge, shifting attention from the front row of cells.

    “A recent study in Drosophila showed that there are active cell shape changes and junctional alterations several rows back from the wound edge, moving attention away from the front row of cells, which have been considered the key players (121).”

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Authors
Razzell, W., Wood, W., & Martin, P.
Affiliations
  • University of Bristol (GB)
  • University of Bath (GB)
Corresponding author
Martin, Paul
Venue
Development
Published
2014-05-01
Volume
141
Issue
9
Pages
1814-1820
ISSN
  • 0950-1991 (ISSN-L)
  • 1477-9129
OpenAlex
W2163949267
Cited by
82
References
34
Citations by year
2026: 2 · 2025: 3 · 2024: 6 · 2023: 7 · 2022: 10 · 2021: 5 · 2020: 8 · 2019: 8 · 2018: 9 · 2017: 6 · 2016: 5 · 2015: 7 · 2014: 6
FWCI
3.96
Type
journal article
Language
en
Open access
Locations
  • Development (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Explore Bristol Research (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • Wellcome Trust (090899)
  • Medical Research Council (MR/J002577/1)
  • National Institute of General Medical Sciences (R01GM084947)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
  • Health Sciences › Medicine › Rehabilitation › Wound Healing and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
wound healing, cell intercalation, actomyosin contractility, Par3, cell polarity, morphogenesis, epithelial mechanics, filopodia, Drosophila
MeSH terms
Animals, Drosophila melanogaster, Embryo, Nonmammalian, Epithelium, Intercellular Junctions, Morphogenesis, Myosins, Wound Healing, Cell Polarity, Cell Shape

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