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Updated: May 14, 2026

Murine Excisional Wound Healing Model and Histological Morphometric Wound Analysis
Published on: August 21, 2020
Exploiting PI3K/mTOR signaling to accelerate epithelial wound healing
R M Castilho1, C H Squarize, J S Gutkind
1Laboratory of Epithelial Biology, Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109-1078, USA. rcastilh@umich.edu
The PI3K/Akt/mTOR pathway significantly impacts skin repair. Understanding its role in epithelial cell migration and proliferation offers new strategies for accelerating wound healing, especially for critical-size injuries.
Area of Science:
- Dermatology and regenerative medicine
- Molecular biology and cell signaling
Background:
- Skin wound healing involves complex molecular circuitries.
- Adult skin epithelial stem cells are crucial for tissue homeostasis and repair.
- The PI3K/Akt/mTOR pathway is a key regulator of epithelial functions.
Purpose of the Study:
- To review recent findings on wound healing mechanisms.
- To focus on the upregulation of the PI3K/Akt/mTOR pathway in skin repair.
- To explore therapeutic strategies for accelerating wound healing.
Main Methods:
- Review of recent scientific literature.
- Analysis of animal models dissecting the PI3K/Akt/mTOR pathway.
- Focus on molecular mechanisms controlling mTOR activation.
Main Results:
- The PI3K/Akt/mTOR pathway is significantly upregulated during wound healing.
- mTOR activation is critical for epithelial cell migration and proliferation.
- This pathway provides insights into skin homeostasis and regeneration.
Conclusions:
- The PI3K/Akt/mTOR pathway is a vital target for enhancing skin wound healing.
- Understanding mTOR activation mechanisms can lead to novel pharmacological interventions.
- Accelerating the healing of critical-size wounds is a key therapeutic goal.
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