Cited by 353Zebrafish Biomedical Research ApplicationsWound Healing and TreatmentsPlanarian Biology and Electrostimulation

Live imaging reveals differing roles of macrophages and neutrophils during zebrafish tail fin regeneration

Open access
Li, Li, Yan, Bo, Shi, Yu-Qian, Zhang, Wen-Qing, Wen, Zi-Long·2012·Journal of Biological Chemistry

Abstract

Macrophages and neutrophils are the pivotal immune phagocytes that enter the wound after tissue injury to remove the cell debris and invaded microorganisms, which presumably facilitate the regrowth of injured tissues. Taking advantage of the regeneration abilities of zebrafish and the newly generated leukocyte-specific zebrafish lines with labeling of both leukocyte lineages, we assessed the behaviors and functions of neutrophils and macrophages during tail fin regeneration. Live imaging showed that within 6 hours post amputation, the inflammatory stage, neutrophils were the primary cells scavenging apoptotic bodies and small cell debris, although they had limited phagocytic capacity and quickly underwent apoptosis. From 6 hours post amputation on, the resolution and regeneration stage, macrophages became the dominant scavengers, efficiently resolving inflammation and facilitating tissue remodeling and regrowth. Ablation of macrophages but not neutrophils severely impaired the inflammatory resolution and tissue regeneration, resulting in the formation of large vacuoles in the regenerated fins. In contrast, removal of neutrophils slightly accelerates the regrowth of injured fin. Our study documents the differing behaviors and functions of macrophages and neutrophils during tissue regeneration.

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Crossref · 10.1074/jbc.m112.349126

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Authors
Li, L., Yan, B., Shi, Y.-Q., Zhang, W.-Q., & Wen, Z.-L.
Affiliations
  • Southwest University (CN)
  • Hong Kong University of Science and Technology (HK)
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2012-07
Volume
287
Issue
30
Pages
25353-25360
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1980758898
Cited by
353
References
49
Citations by year
2026: 26 · 2025: 24 · 2024: 23 · 2023: 21 · 2022: 41 · 2021: 34 · 2020: 22 · 2019: 36 · 2018: 19 · 2017: 24 · 2016: 23 · 2015: 19 · 2014: 25 · 2013: 13 · 2012: 3
FWCI
9.09
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Rare & Special e-Zone (The Hong Kong University of Science and Technology) (submittedVersion)
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, neutrophils, tail fin regeneration, zebrafish, wound healing, phagocytosis, inflammation resolution, tissue remodeling, macrophage depletion, live imaging
MeSH terms
Animals, Macrophages, Neutrophils, Regeneration, Tail, Zebrafish, Animal Fins

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