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In Vivo Imaging of Reactive Oxygen Species in a Murine Wound Model
Published on: November 17, 2018
Reactive oxygen species and their detoxification in healing skin wounds
Ulrich auf dem Keller1, Angelika Kümin, Susanne Braun
1Department of Biology, Institute of Cell Biology, ETH Zürich, Hönggerberg, Zürich, Switzerland.
Abstract:
Injury to the skin initiates a cascade of events, which finally lead to at least partial reconstruction of the wounded tissue. The wound-healing process has been well described at the histological level, but the underlying molecular mechanisms are still poorly defined. To gain insight into these mechanisms we searched for genes, which are regulated by skin injury. Interestingly, some of the genes that we identified encode cytoprotective proteins, in particular enzymes, which detoxify reactive oxygen species (ROS). Since ROS are produced in high amounts at the wound site as a defense against invading bacteria, the expression of these genes is most likely important for the protection of cells against these toxic molecules. In this review, we summarize the results on the expression of cytoprotective genes in wounded skin, and we discuss their possible roles in the wound-healing process.
Insights
Skin injury triggers gene regulation, revealing cytoprotective enzymes that detoxify reactive oxygen species (ROS). These findings highlight the importance of ROS detoxification in skin wound healing.
Area of Science:
- Molecular biology
- Dermatology
- Biochemistry
Background:
- Skin injury initiates complex healing processes.
- Molecular mechanisms underlying wound repair remain incompletely understood.
- Reactive oxygen species (ROS) are generated at wound sites for bacterial defense.
Purpose of the Study:
- To identify genes regulated by skin injury.
- To investigate the role of cytoprotective genes in wound healing.
- To understand the function of reactive oxygen species (ROS) detoxification in skin repair.
Main Methods:
- Gene expression profiling following skin injury.
- Identification and characterization of cytoprotective enzymes.
- Analysis of ROS detoxification pathways in wounded skin.
Main Results:
- Skin injury regulates the expression of specific cytoprotective genes.
- Identified enzymes detoxify reactive oxygen species (ROS).
- Upregulation of these genes suggests a protective role against ROS-induced cellular damage.
Conclusions:
- Cytoprotective genes, particularly ROS-detoxifying enzymes, are activated during skin wound healing.
- These genes likely play a crucial role in protecting cells from oxidative stress at the wound site.
- Further research into these molecular mechanisms can inform therapeutic strategies for improved wound repair.
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