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Kim HS, Kim YJ, Kim SJ, Kang DS, Lee TR, Shin DW, Kim HJ, Seo YR. T ranscriptomic analysis of human dermal fibroblast cells reveals potential mechanisms underlying the protective effects of visible red light against damage from ultraviolet B light. J Dermatol Sci 2019; 94:276-283. [PMID: 30956030 DOI: 10.1016/j.jdermsci.2019.03.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND Ultraviolet B (UVB) radiation is a major cause of skin photodamage, including the damage associated with photodermatoses, aging, and cancer. Although many studies have shown that red light has photoprotective effects on skin, the mechanisms underlying these effects are still poorly understood. OBJECTIVE The aim of this study was to identify the photoprotective effects of visible red light against UVB-induced skin damage in normal human dermal fibroblast cells using a transcriptomic approach. METHODS Next-generation sequencing-based transcriptomic analyses were used to profile transcriptomic alterations and identify genes that are differentially expressed by visible red light and by UVB exposure. To understand the biological networks among identified genes, a literature-based biological pathway analysis was performed. Quantitative real-time polymerase chain reaction assays were used for mRNA-level validation of selected key genes. RESULTS We observed that visible red light contributes to skin cell protection against UVB by modulating gene expression that enhances the adaptive response to redox and inflammatory balancing and by upregulating genes involved in DNA excision repair processes. We also identified that several key genes in the red light-induced biological network were differentially regulated. CONCLUSIONS Visible red light enhanced the UVB-protective effects in normal human skin cells via the transcriptomic modulation of genes involved in cell-protective processes. Our findings from this next-generation sequencing analysis may lead to a better understanding of the cytoprotective effects of visible red light and provide direction for further molecular or mechanistic studies.
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Affiliation(s)
- Hyun Soo Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Yeo Jin Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Su Ji Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Doo Seok Kang
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Tae Ryong Lee
- Bioscience Research Institute, Amorepacific Corporation R&D Center, 1920, Yonggu-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17074, Republic of Korea
| | - Dong Wook Shin
- College of Biomedical & Health Science, Konkuk University, Chungju, 27478, Korea.
| | - Hyoung-June Kim
- Bioscience Research Institute, Amorepacific Corporation R&D Center, 1920, Yonggu-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17074, Republic of Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
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