The Impact of Blue Light Irradiation on Keratinocytes in Vitro

Denzinger, Markus and Nuessler, Andreas K. and Medved, Fabian and Krauss, Sabrina and Daigeler, Adrien and Held, Manuel and Illg, Claudius (2023) The Impact of Blue Light Irradiation on Keratinocytes in Vitro. ACTA DERMATOVENEROLOGICA CROATICA, 31 (2). pp. 63-71. ISSN 1330-027X, 1847-6538

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Abstract

Background: This study examined the effects of irradiation with blue light on HaCaT keratinocytes. As irradiation with blue light is known to be antimicrobial, it offers a promising alternative therapy for contaminated wounds. There is evidence that red light promotes wound healing, but the potential benefits of irradiation with blue light have not yet been adequately investigated. Methods: The rate of wound closure in sterile and contaminated cells was measured using an in vitro scratch assay wound-healing model. Additionally, cell viability after treatment was determined using a Sulforhodamine B (SRB) assay. Results: In both the sterile and contaminated groups, treated cells showed delayed wound closure when compared with cells not irradiated with blue light. Additionally, treatment with blue light resulted in poorer viability in the treatment groups. Conclusion: Although irradiation with blue light may offer a promising alternative therapy for reducing bacterial colonization, our data indicate that re- epithelization may be negatively influenced by blue light. Further research is needed to clarify possible wound healing applications.

Item Type: Article
Uncontrolled Keywords: LEVEL LASER THERAPY; STAPHYLOCOCCUS-AUREUS; PHOTOTHERAPY; RABBIT; BIOSTIMULATION; INFECTION; MODEL; ASSAY;
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Kinder- und Jugendmedizin
Depositing User: Dr. Gernot Deinzer
Date Deposited: 22 Apr 2024 12:16
Last Modified: 22 Apr 2024 12:16
URI: https://pred.uni-regensburg.de/id/eprint/61999

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