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Kono M, Ishihara N, Nakane T, Nabetani Y, Kajino M, Okuda T, Hayashi M, Koriyama C, Vogel CFA, Tsuji M, Ishihara Y. Enhancement of keratinocyte survival and migration elicited by interleukin 24 upregulation in dermal microvascular endothelium upon welding-fume exposure. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2024; 87:792-810. [PMID: 38940434 DOI: 10.1080/15287394.2024.2372403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Occupational exposure to welding fumes constitutes a serious health concern. Although the effects of fumes on the respiratory tract have been investigated, few apparent reports were published on their effects on the skin. The purpose of this study was to investigate the effects of exposure to welding fumes on skin cells, focusing on interleukin-24 (IL-24), a cytokine involved in the pathophysiology of skin conditions, such as atopic dermatitis and psoriasis. Treatment with welding fumes increased IL-24 expression and production levels in human dermal microvascular endothelial cells (HDMEC) which were higher than that in normal human epidermal keratinocytes. IL-24 levels in Trolox and deferoxamine markedly suppressed welding fume-induced IL-24 expression in HDMEC, indicating that oxidative stress may be involved in this cytokine expression. IL-24 released from HDMEC protected keratinocytes from welding fume-induced damage and enhanced keratinocyte migration. Serum IL-24 was higher in welding workers than in general subjects and was positively correlated with elevated serum levels of 8-hydroxy-2'-deoxyguanosine, an oxidative stress marker. In summary, welding fumes enhanced IL-24 expression in HDMEC, stimulating keratinocyte survival and migration. IL-24 expression in endothelial cells may act as an adaptive response to welding-fume exposure in the skin.
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Affiliation(s)
- Maori Kono
- Laboratory of Advanced Cosmetic Science, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
- Advanced Technology Institute, Mandom Corporation, Osaka, Japan
| | - Nami Ishihara
- Program of Biomedical Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Tatsuto Nakane
- Program of Biomedical Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Yu Nabetani
- Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, Miyazaki, Japan
| | - Mizuo Kajino
- Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Ibaraki, Japan
| | - Tomoaki Okuda
- Faculty of Science and Technology, Keio University, Tokyo, Kanagawa, Japan
| | | | - Chihaya Koriyama
- Department of Epidemiology and Preventive Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Christoph F A Vogel
- Department of Environmental Toxicology, University of California, Davis, CA, USA
- Center for Health and the Environment, University of California, Davis, CA, USA
| | - Mayumi Tsuji
- Department of Environmental Health, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - Yasuhiro Ishihara
- Program of Biomedical Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
- Center for Health and the Environment, University of California, Davis, CA, USA
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Kono M, Takaishi M, Okuda T, Fujihara M, Noguchi S, Ishihara Y. A simple air-liquid interface exposure system for exposing cultured human 3D epidermis and cornea to PM2.5 collected through cyclonic separation. J Toxicol Sci 2024; 49:61-68. [PMID: 38296530 DOI: 10.2131/jts.49.61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Particulate matter (PM) is among the major air pollutants suspended in the atmosphere. PM2.5 has a particle size of 2.5 µm; it is known to cause inflammation, especially in the respiratory tract and skin. Since the skin acts a primary barrier against harmful environmental substances that may enter the body, it is highly exposed to PM2.5 present in the environment. However, the adverse health effects of PM2.5 exposure on human skin have not been accurately examined due to the lack of a system that exposes human epidermal tissue to the actual environmental concentration of PM2.5. In this study, we developed an air-liquid interface exposure system for exposing cultured human 3D epidermis and cornea to PM2.5 collected through cyclonic separation. PM2.5 suspension was nebulized in an acrylic chamber, and the resulting mist was pumped through a diffusion dryer into a glass exposure chamber. A particle counter was connected to the exposure chamber to continuously measure the spatial mass concentration of PM. Human 3D epidermis was cultured in the exposure chamber. Exposure of the human 3D epidermis to PM aerosol increased interleukin-8 release into the media around 50 µg/m3. Mass concentrations above 100 µg/m3 caused cell death. Furthermore, a human corneal model showed similar responses against PM2.5 exposure as 3D epidermis. The air-liquid interface exposure system developed in this study is considered useful for evaluating the health effects induced by environmental PM2.5 and can be used as an alternative to experiments involving actual human or animals.
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Affiliation(s)
- Maori Kono
- Laboratory of Advanced Cosmetic Science, Graduate School of Pharmaceutical Sciences, Osaka University
- Advanced Technology Institute, Mandom Corporation
| | - Masayuki Takaishi
- Laboratory of Advanced Cosmetic Science, Graduate School of Pharmaceutical Sciences, Osaka University
- Advanced Technology Institute, Mandom Corporation
| | | | | | - Seisuke Noguchi
- Manufacturing Division, Technical Center, Hiroshima University
| | - Yasuhiro Ishihara
- Program of Biomedical Science, Graduate School of Integrated Sciences for Life, Hiroshima University
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Bang E, Hwangbo H, Kim MY, Ji SY, Kim DH, Shim JH, Moon SK, Kim GY, Cheong J, Choi YH. Urban aerosol particulate matter promotes mitochondrial oxidative stress-induced cellular senescence in human retinal pigment epithelial ARPE-19 cells. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 102:104211. [PMID: 37423393 DOI: 10.1016/j.etap.2023.104211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/27/2023] [Accepted: 07/03/2023] [Indexed: 07/11/2023]
Abstract
Environmental exposure to urban particulate matter (UPM) is a serious health concern worldwide. Although several studies have linked UPM to ocular diseases, no study has reported effects of UPM exposure on senescence in retinal cells. Therefore, this study aimed to investigate the effects of UPM on senescence and regulatory signaling in human retinal pigment epithelial ARPE-19 cells. Our study demonstrated that UPM significantly promoted senescence, with increased senescence-associated β-galactosidase activity. Moreover, both mRNA and protein levels of senescence markers (p16 and p21) and the senescence-associated secretory phenotype, including IL-1β, matrix metalloproteinase-1, and -3 were upregulated. Notably, UPM increased mitochondrial reactive oxygen species-dependent nuclear factor-kappa B (NF-κB) activation during senescence. In contrast, use of NF-κB inhibitor Bay 11-7082 reduced the level of senescence markers. Taken together, our results provide the first in vitro preliminary evidence that UPM induces senescence by promoting mitochondrial oxidative stress-mediated NF-κB activation in ARPE-19 cells.
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Affiliation(s)
- EunJin Bang
- Anti-Aging Research Center, Dong-eui University, Busan 47227, Republic of Korea; Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Republic of Korea
| | - Hyun Hwangbo
- Anti-Aging Research Center, Dong-eui University, Busan 47227, Republic of Korea; Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Republic of Korea
| | - Min Yeong Kim
- Anti-Aging Research Center, Dong-eui University, Busan 47227, Republic of Korea; Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Republic of Korea
| | - Seon Yeong Ji
- Anti-Aging Research Center, Dong-eui University, Busan 47227, Republic of Korea; Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Republic of Korea
| | - Da Hye Kim
- Anti-Aging Research Center, Dong-eui University, Busan 47227, Republic of Korea; Department of Molecular Biology, Pusan National University, Busan 46241, Republic of Korea
| | - Jung-Hyun Shim
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Sung-Kwon Moon
- Department of Food and Nutrition, Chung-Ang University, Ansung 17546, Republic of Korea
| | - Gi-Young Kim
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea
| | - Jaehun Cheong
- Department of Molecular Biology, Pusan National University, Busan 46241, Republic of Korea
| | - Yung Hyun Choi
- Anti-Aging Research Center, Dong-eui University, Busan 47227, Republic of Korea; Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Republic of Korea.
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