Volume 17, Issue 10 e202400226
RESEARCH ARTICLE

Induction of Endoplasmic Reticulum Stress and Aryl Hydrocarbon Receptor Pathway Expression by Blue LED Irradiation in Oral Squamous Cell Carcinoma

Hui Jiang

Hui Jiang

Academy for Engineering and Technology, Fudan University, Shanghai, China

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Jiali Yang

Jiali Yang

School of Information Science and Technology, Fudan University, Shanghai, China

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Qiqi Fu

Qiqi Fu

School of Information Science and Technology, Fudan University, Shanghai, China

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Angze Li

Angze Li

School of Information Science and Technology, Fudan University, Shanghai, China

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Haokuan Qin

Haokuan Qin

Academy for Engineering and Technology, Fudan University, Shanghai, China

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Muqing Liu

Corresponding Author

Muqing Liu

School of Information Science and Technology, Fudan University, Shanghai, China

Zhongshan DB-Light Technology Co., Ltd, Zhongshan City, Guangdong Province, China

Correspondence:

Muqing Liu ([email protected])

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First published: 29 August 2024
Citations: 1

Funding: This work was supported by Zhongshan Science and Technology Bureau under grant No. 2021AG001.

ABSTRACT

Photobiomodulation therapy, as an emerging treatment modality, has been widely used in dentistry. However, reports on blue light therapy for oral cancer are scarce. This study investigated the effects of 457 and 475 nm LED irradiation on SCC-25 cells and explored the potential mechanisms underlying the impact of blue light. Both wavelengths were found to inhibit cell viability, induce oxidative stress, and cause cell cycle arrest without leading to cell death. Notably, the inhibitory effect of 457 nm blue light on cell proliferation was more sustained. Transcriptome sequencing was performed to explore the underlying mechanisms, revealing that blue light induced endoplasmic reticulum stress in SCC-25 cells, with 457 nm light showing a more pronounced effect. Moreover, 457 nm blue light upregulated the expression of the aryl hydrocarbon receptor pathway, indicating potential therapeutic prospects for the combined use of blue light and pharmacological agents.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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