Abstract
Wound healing involves a complex and dynamic interplay among various cell types, cytokines, and growth factors. Macrophages and transforming growth factor-β1 (TGF-β1) play an essential role in different phases of wound healing. Cold atmospheric plasma has a wide range of applications in the treatment of chronic wounds. Hence, we aimed to investigate the safety and efficacy of a custom-made plasma device in a full-thickness skin defect mouse model. Here, we investigated the wound tissue on days 6 and 12 using histology, qPCR, and western blotting. During the inflammation phase of wound repair, macrophages play an important role in the onset and resolution of inflammation, showing decreased F4/80 on day 6 of plasma treatment and increased TGF-β1 levels. The plasma-treated group showed better epidermal epithelialization, dermal fibrosis, collagen maturation, and reduced inflammation than the control group. Our findings revealed that floating electrode-dielectric barrier discharge (FE-DBD)-based atmospheric-pressure plasma promoted significantly faster wound healing in the plasma-treated group than that in the control group with untreated wounds. Hence, plasma treatment accelerated wound healing processes without noticeable side effects and suppressed pro-inflammatory genes, suggesting that FE-DBD-based plasma could be a potential therapeutic option for treating various wounds.
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Acknowledgements
The authors acknowledge Dr. Mohd Farhan for valuable discussions.
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This work was partially supported by the Soonchunhyang University Research Fund and the National Research Foundation of Korea funded by the Korean government (MSIT) (grant numbers:2021R1I1A3048885, 2021-DD-RD-0480, and 2019R1A5A8083404).
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Subramaniam, M.D., Bae, J.S., Son, J. et al. Floating electrode–dielectric barrier discharge-based plasma promotes skin regeneration in a full-thickness skin defect mouse model. Biomed. Eng. Lett. 14, 605–616 (2024). https://doi.org/10.1007/s13534-024-00356-5
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DOI: https://doi.org/10.1007/s13534-024-00356-5