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Han EJ, Kim SY, Han HJ, Kim HS, Kim KN, Fernando IPS, Madusanka DMD, Dias MKHM, Cheong SH, Park SR, Han YS, Lee K, Ahn G. UVB protective effects of Sargassum horneri through the regulation of Nrf2 mediated antioxidant mechanism. Sci Rep 2021; 11:9963. [PMID: 33976251 PMCID: PMC8113259 DOI: 10.1038/s41598-021-88949-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 04/06/2021] [Indexed: 12/30/2022] Open
Abstract
The present study aimed to evaluate the protective effect of a methanol extract of Sargassum horneri (SHM), which contains 6-hydroxy-4,4,7a-trimethyl-5,6,7,7a-tetrahydrobenzofuran-2(4H)-one (HTT) and apo-9'-fucoxanthinone, against ultraviolet B (UVB)-induced cellular damage in human keratinocytes and its underlying mechanism. SHM significantly improved cell viability of UVB-exposed human keratinocytes by reducing the generation of intracellular reactive oxygen species (ROS). Moreover, SHM inhibited UVB exposure-induced apoptosis by reducing the formation of apoptotic bodies and the populations of the sub-G1 hypodiploid cells and the early apoptotic cells by modulating the expression of the anti- and pro-apoptotic molecules, Bcl-2 and Bax, respectively. Furthermore, SHM inhibited NF-κB p65 activation by inducing the activation of Nrf2/HO-1 signaling. The cytoprotective and antiapoptotic activities of SHM are abolished by the inhibition of HO-1 signaling. In further study, SHM restored the skin dryness and skin barrier disruption in UVB-exposed human keratinocytes. Based to these results, our study suggests that SHM protects the cells against UVB-induced cellular damages through the Nrf2/HO-1/NF-κB p65 signaling pathway and may be potentially useful for the prevention of UVB-induced skin damage.
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Affiliation(s)
- Eui Jeong Han
- Research Center for Healthcare and Biomedical Engineering, Chonnam National University, Yeosu, 59626, Republic of Korea
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu, 59626, Republic of Korea
| | - Seo-Young Kim
- Chuncheon Center, Korea Basic Science Institute, Chuncheon, 24341, Republic of Korea
| | - Hee-Jin Han
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu, 59626, Republic of Korea
| | - Hyun-Soo Kim
- National Marine Biodiversity Institute of Korea, Janghang-eup, Seocheon, 33662, Republic of Korea
| | - Kil-Nam Kim
- Chuncheon Center, Korea Basic Science Institute, Chuncheon, 24341, Republic of Korea
| | - Ilekuttige Priyan Shanura Fernando
- Control Center for Aquatic Animal Diseases, Chonnam National University, Yeosu, 59626, Republic of Korea
- Department of Marine Bio-Food Sciences, Chonnam National University, Yeosu, 59626, Republic of Korea
| | | | | | - Sun Hee Cheong
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu, 59626, Republic of Korea
- Department of Marine Bio-Food Sciences, Chonnam National University, Yeosu, 59626, Republic of Korea
| | - Sang Rul Park
- Estuarine and Coastal Ecology Laboratory, Department of Marine Life Sciences, Jeju National University, Jeju, 63243, Republic of Korea
| | - Young Seok Han
- Neo Environmental Business Co., Daewoo Technopark, Doyak-ro, Bucheon, 14523, Republic of Korea
| | - Kyounghoon Lee
- Division of Fisheries Science, Chonnam National University, Yeosu, 59626, Republic of Korea.
- Department of Marine Technology, Chonnam National University, Yeosu, 59626, Republic of Korea.
| | - Ginnae Ahn
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu, 59626, Republic of Korea.
- Department of Marine Bio-Food Sciences, Chonnam National University, Yeosu, 59626, Republic of Korea.
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