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Assessment of Acute Wound Healing using the Dorsal Subcutaneous Polyvinyl Alcohol Sponge Implantation and Excisional Tail Skin Wound Models.
Published on: March 25, 2020
Accelerated wound closure in mice deficient for interleukin-10
Sabine A Eming1, Sabine Werner, Philippe Bugnon
1Department of Dermatology, University of Cologne, Joseph-Stelzmann Str. 9, 50931 Köln, Germany. sabine.eming@uni-koeln.de
The American Journal of Pathology
|January 4, 2007
Summary
The anti-inflammatory cytokine interleukin-10 (IL-10) impedes wound repair. Mice lacking IL-10 exhibited accelerated wound closure, enhanced epithelialization, and increased wound contraction, indicating IL-10
Area of Science:
- Immunology
- Wound Healing Research
- Cellular Biology
Background:
- The role of local inflammation in wound healing is complex and debated.
- Specifically, the influence of infiltrating immune cells like macrophages and granulocytes on tissue repair remains unclear.
Purpose of the Study:
- To investigate the impact of the anti-inflammatory cytokine interleukin-10 (IL-10) on the process of wound healing.
- To determine whether IL-10 promotes or impedes tissue repair and identify underlying mechanisms.
Main Methods:
- Utilized a mouse model deficient in interleukin-10 (IL-10-/-).
- Compared excisional wound closure rates, epithelialization, and wound contraction in IL-10 deficient mice versus control littermates.
- Assessed alpha-smooth muscle actin expression and quantified macrophage infiltration in wound tissues.
Main Results:
- IL-10 deficient mice demonstrated significantly accelerated wound closure compared to controls.
- Enhanced epithelialization and increased wound contraction were observed in IL-10-/- mice.
- Increased alpha-smooth muscle actin expression and elevated macrophage infiltration in IL-10 deficient mice suggest these factors mediate accelerated repair.
Conclusions:
- Interleukin-10 (IL-10) significantly impedes wound repair processes.
- The absence of IL-10 accelerates wound healing through enhanced epithelialization and myofibroblast differentiation.
- Macrophage infiltration appears to play a crucial role in mediating the pro-repair effects observed in IL-10 deficient models.
