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Liu H, Wu C, Hu S, Leng B, Lou X, Liu Z, Su X, Huang D. Lutein Modulates Cellular Functionalities and Regulates NLRP3 Inflammasome in a H 2O 2-Challenged Three-Dimensional Retinal Pigment Epithelium Model. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:14701-14712. [PMID: 38897610 DOI: 10.1021/acs.jafc.4c01537] [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: 06/21/2024]
Abstract
Excessive hydrogen peroxide (H2O2) generated during retinal cell metabolic activity could lead to oxidative degeneration of retinal pigment epithelium (RPE) tissue, a specific pathological process implicated in various retinal diseases resulting in blindness, which can be mitigated by taking dietary antioxidants to prevent inflammation and impaired cellular dysfunction. This study tested the hypothesis that damages induced by oxidative stresses can be mitigated by lutein in a H2O2-challenged model, which was based on an ARPE-19 cell monolayer cultured on three-dimensional (3D)-printed fibrous scaffolds. Pretreating these models with lutein (0.5 μM) for 24 h can significantly lower the oxidative stress and maintain phagocytosis and barrier function. Moreover, lutein can modulate the NLRP3 inflammasome, leading to a ∼40% decrease in the pro-inflammatory cytokine (IL-1β and IL-18) levels. Collectively, this study suggests that the 3D RPE model is an effective tool to examine the capability of lutein to modulate cellular functionalities and regulate NLRP3 inflammation.
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Affiliation(s)
- Hang Liu
- Department of Food Science and Technology, Faculty of Science, National University of Singapore, Singapore 117542, Singapore
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138673, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119074, Singapore
| | - Chushan Wu
- Department of Food Science and Technology, Faculty of Science, National University of Singapore, Singapore 117542, Singapore
| | - Shiyin Hu
- Department of Food Science and Technology, Faculty of Science, National University of Singapore, Singapore 117542, Singapore
| | - Bin Leng
- Department of Food Science and Technology, Faculty of Science, National University of Singapore, Singapore 117542, Singapore
| | - Xiaowei Lou
- Department of Food Science and Technology, Faculty of Science, National University of Singapore, Singapore 117542, Singapore
| | - Zengping Liu
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138673, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119074, Singapore
| | - Xinyi Su
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138673, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119074, Singapore
| | - Dejian Huang
- Department of Food Science and Technology, Faculty of Science, National University of Singapore, Singapore 117542, Singapore
- National University of Singapore (Suzhou) Research Institute, Suzhou, Jiangsu 215123, People's Republic of China
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