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Updated: Nov 20, 2025

Assessment of Acute Wound Healing using the Dorsal Subcutaneous Polyvinyl Alcohol Sponge Implantation and Excisional Tail Skin Wound Models.
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Macrophages in Healing Wounds: Paradoxes and Paradigms

Luisa A DiPietro1, Traci A Wilgus2, Timothy J Koh3

  • 1College of Dentistry, University of Illinois at Chicago, 801 S. Paulina, Chicago, IL 60612, USA.

International Journal of Molecular Sciences
|January 22, 2021
PubMed

Insights

Macrophages play a key role in adult skin wound healing, but their exact functions are still unclear. Research into macrophage phenotypes and cellular plasticity may resolve paradoxes and improve healing therapies.

Area of Science:

  • Wound healing research
  • Cellular biology
  • Immunology

Background:

  • Macrophages are key cells in adult skin wound healing, involved in host defense and tissue repair.
  • The precise role and significance of macrophages in healing outcomes remain poorly understood.
  • Paradoxical findings exist where wounds heal with limited or no macrophages.

Purpose of the Study:

  • To explore the enigmatic functions of macrophages in adult skin wound healing.
  • To reconcile contradictory findings regarding macrophage roles in wound repair.
  • To propose new paradigms for macrophage function in wound healing.

Main Methods:

  • Review of recent advances in understanding wound macrophage phenotypes.
  • Analysis of new information on cellular plasticity within wound environments.
  • Synthesis of existing literature to address functional paradoxes.

Main Results:

  • Recent advances offer potential explanations for the seemingly contradictory roles of macrophages.
  • Understanding macrophage phenotypes and cellular plasticity is crucial.
  • New paradigms are emerging regarding macrophage function in wound healing.

Conclusions:

  • Further research into wound macrophages is essential for developing effective therapeutic strategies.
  • Clarifying macrophage roles can lead to improved clinical outcomes in wound healing.
  • The plasticity of macrophages may explain their varied functions in different wound contexts.
Keywords:
inflammationmacrophagesregenerationscarwound healing

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