Cited by 365Zebrafish Biomedical Research ApplicationsWound Healing and TreatmentsPlanarian Biology and Electrostimulation

Macrophages modulate adult zebrafish tail fin regeneration

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Petrie, Timothy A., Strand, Nicholas S., Tsung-Yang, Chao, Rabinowitz, Jeremy S., Moon, Randall T.·2014·Development

Abstract

Neutrophils and macrophages, as key mediators of inflammation, have defined functionally important roles in mammalian tissue repair. Although recent evidence suggests that similar cells exist in zebrafish and also migrate to sites of injury in larvae, whether these cells are functionally important for wound healing or regeneration in adult zebrafish is unknown. To begin to address these questions, we first tracked neutrophils (lyzC+, mpo+) and macrophages (mpeg1+) in adult zebrafish following amputation of the tail fin, and detailed a migratory timecourse that revealed conserved elements of the inflammatory cell response with mammals. Next, we used transgenic zebrafish in which we could selectively ablate macrophages, which allowed us to investigate whether macrophages were required for tail fin regeneration. We identified stage-dependent functional roles of macrophages in mediating fin tissue outgrowth and bony ray patterning, in part through modulating levels of blastema proliferation. Moreover, we also sought to detail molecular regulators of inflammation in adult zebrafish and identified Wnt/β-catenin as a signaling pathway that regulates the injury microenvironment, inflammatory cell migration and macrophage phenotype. These results provide a cellular and molecular link between components of the inflammation response and regeneration in adult zebrafish.

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  • In adult salamander limb and zebrafish fin regeneration, innate immune cell influx, particularly macrophages, preceding blastema formation is essential for regeneration.

    “yet, recent studies in both adult salamander limb and zebrafish fin regeneration indicate that an innate immune cell influx, particularly of macrophages, preceding blastema formation is an essential component of regeneration (134, 135).”

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Authors
Petrie, T. A., Strand, N. S., Tsung-Yang, C., Rabinowitz, J. S., & Moon, R. T.
Affiliations
  • Howard Hughes Medical Institute (US)
  • University of Washington (US)
Corresponding author
Petrie, Timothy A.
Venue
Development
Published
2014-07-01
Volume
141
Issue
13
Pages
2581-2591
ISSN
  • 0950-1991 (ISSN-L)
  • 1477-9129
OpenAlex
W2152663152
Cited by
365
References
70
Citations by year
2026: 26 · 2025: 20 · 2024: 37 · 2023: 23 · 2022: 40 · 2021: 46 · 2020: 38 · 2019: 36 · 2018: 30 · 2017: 24 · 2016: 23 · 2015: 17 · 2014: 4
FWCI
11.29
Type
journal article
Language
en
Open access
Locations
  • Development (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • National Institute of General Medical Sciences (GM081619, GM00727, T32GM007270, P01GM081619)
  • National Institute of Allergy and Infectious Diseases (AI54503, AI036396, R01AI036396, R37AI054503, R01AI054503)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Zebrafish Biomedical Research Applications
  • Health Sciences › Medicine › Rehabilitation › Wound Healing and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Planarian Biology and Electrostimulation
Keywords
macrophages, tail fin regeneration, zebrafish, neutrophils, inflammation, wound healing, macrophage depletion, Wnt/β-catenin signaling, inflammatory cell migration, macrophage phenotype, tissue repair
MeSH terms
Amputation, Surgical, Animals, Cell Movement, Flow Cytometry, Immunohistochemistry, Inflammation, Macrophages, Microscopy, Fluorescence, Morphogenesis, Neutrophils, Regeneration, Tail, Zebrafish, DNA Primers, Animals, Genetically Modified, Real-Time Polymerase Chain Reaction

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