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Tsou SC, Chuang CJ, Wang I, Chen TC, Yeh JH, Hsu CL, Hung YC, Lee MC, Chang YY, Lin HW. Lemon Peel Water Extract: A Novel Material for Retinal Health, Protecting Retinal Pigment Epithelial Cells against Dynamin-Related Protein 1-Mediated Mitochondrial Fission by Blocking ROS-Stimulated Mitogen-Activated Protein Kinase/Extracellular Signal-Regulated Kinase Pathway. Antioxidants (Basel) 2024; 13:538. [PMID: 38790643 PMCID: PMC11117509 DOI: 10.3390/antiox13050538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/14/2024] [Accepted: 04/25/2024] [Indexed: 05/26/2024] Open
Abstract
Previous studies showed that NaIO3 can induce oxidative stress-mediated retinal pigment epithelium (RPE) damage to simulate age-related macular degeneration (AMD). Lemon peel is rich in antioxidants and components that can penetrate the blood-retinal barrier, but their role in retinal oxidative damage remains unexplored. Here, we explore the protection of lemon peel ultrasonic-assisted water extract (LUWE), containing large amounts of flavonoids and polyphenols, against NaIO3-induced retinal degeneration. We initially demonstrated that LUWE, orally administered, prevented retinal distortion and thinning on the inner and outer nuclei layers, downregulating cleaved caspase-3 protein expression in RPE cells in NaIO3-induced mice. The effect of LUWE was achieved through the suppression of apoptosis and the associated proteins, such as cleaved PARP and cleaved caspase-3, as suggested by NaIO3-induced ARPE-19 cell models. This is because LUWE reduced reactive oxygen species-mediated mitochondrial fission via regulating p-Drp-1 and Fis1 expression. We further confirmed that LUWE suppresses the expression of p-MEK-1/2 and p-ERK-1/2 in NaIO3-induced ARPE-19 cells, thereby providing the protection described above, which was confirmed using PD98059 and U0126. These results indicated that LUWE prevents mitochondrial oxidative stress-mediated RPE damage via the MEK/ERK pathway. Elucidation of the molecular mechanism may provide a new protective strategy against retinal degeneration.
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Affiliation(s)
- Shang-Chun Tsou
- Department of Nutrition, Chung Shan Medical University, Taichung 40201, Taiwan; (S.-C.T.); (C.-L.H.)
| | - Chen-Ju Chuang
- Emergency Department, St. Martin De Porres Hospital, Chiayi 60069, Taiwan;
| | - Inga Wang
- Rehabilitation Sciences & Technology, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA;
| | - Tzu-Chun Chen
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan; (T.-C.C.); (J.-H.Y.)
| | - Jui-Hsuan Yeh
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan; (T.-C.C.); (J.-H.Y.)
| | - Chin-Lin Hsu
- Department of Nutrition, Chung Shan Medical University, Taichung 40201, Taiwan; (S.-C.T.); (C.-L.H.)
| | - Yu-Chien Hung
- Department of Ophthalmology, Chung Shan Medical University Hospital, Taichung 40201, Taiwan;
| | - Ming-Chung Lee
- Brion Research Institute of Taiwan, New Taipei City 23143, Taiwan;
| | - Yuan-Yen Chang
- Department of Microbiology and Immunology, School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Hui-Wen Lin
- Department of Optometry, Asia University, Taichung 413305, Taiwan
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Data K, Marcinkowska K, Buś K, Valihrach L, Pawlak E, Śmieszek A. β-Lactoglobulin affects the oxidative status and viability of equine endometrial progenitor cells via lncRNA-mRNA-miRNA regulatory associations. J Cell Mol Med 2023; 27:927-938. [PMID: 36860157 PMCID: PMC10064025 DOI: 10.1111/jcmm.17694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/20/2023] [Accepted: 01/30/2023] [Indexed: 03/03/2023] Open
Abstract
The β-lactoglobulin (β-LG) was previously characterized as a mild antioxidant modulating cell viability. However, its biological action regarding endometrial stromal cell cytophysiology and function has never been considered. In this study, we investigated the influence of β-LG on the cellular status of equine endometrial progenitor cells under oxidative stress. The study showed that β-LG decreased the intracellular accumulation of reactive oxygen species, simultaneously ameliorating cell viability and exerting an anti-apoptotic effect. However, at the transcriptional level, the reduced mRNA expression of pro-apoptotic factors (i.e. BAX and BAD) was accompanied by decreased expression of mRNA for anti-apoptotic BCL-2 and genes coding antioxidant enzymes (CAT, SOD-1, GPx). Still, we have also noted the positive effect of β-LG on the expression profile of transcripts involved in endometrial viability and receptivity, including ITGB1, ENPP3, TUNAR and miR-19b-3p. Finally, the expression of master factors of endometrial decidualization, namely prolactin and IGFBP1, was increased in response to β-LG, while non-coding RNAs (ncRNAs), that is lncRNA MALAT1 and miR-200b-3p, were upregulated. Our findings indicate a novel potential role of β-LG as a molecule regulating endometrial tissue functionality, promoting viability and normalizing the oxidative status of endometrial progenitor cells. The possible mechanism of β-LG action includes the activation of ncRNAs essential for tissue regeneration, such as lncRNA MALAT-1/TUNAR and miR-19b-3p/miR-200b-3p.
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Affiliation(s)
- Krzysztof Data
- Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences, Wroclaw, Poland
| | - Klaudia Marcinkowska
- Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences, Wroclaw, Poland
| | - Klaudia Buś
- Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences, Wroclaw, Poland
| | - Lukas Valihrach
- Laboratory of Gene Expression, Institute of Biotechnology CAS, Biocev, Vestec, Czech Republic
| | - Edyta Pawlak
- Laboratory of Immunopathology, Department of Experimental Therapy, Hirszfeld Institute of Immunology and Experimental Therapy, Wroclaw, Poland
| | - Agnieszka Śmieszek
- Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences, Wroclaw, Poland
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Chong YS, Mai CW, Leong CO, Wong LC. Lutein improves cell viability and reduces Alu RNA accumulation in hydrogen peroxide challenged retinal pigment epithelial cells. Cutan Ocul Toxicol 2018; 37:52-60. [PMID: 28554225 DOI: 10.1080/15569527.2017.1335748] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
PURPOSE Dysfunction of the microRNA (miRNA)-processing enzyme DICER1 and Alu RNA accumulation are linked to the pathogenesis of age-related macular degeneration (AMD). This study determined the optimal dose of lutein (LUT) and zeaxanthin (ZEA) to protect human retinal pigment epithelium (RPE) cells against hydrogen peroxide (H2O2). The effect of the optimal dose of LUT and ZEA as DICER1 and Alu RNA modulators in cultured human RPE cells challenged with H2O2 was investigated. MATERIALS AND METHODS ARPE-19 cells were pre-treated with LUT, ZEA, or both for 24 h before 200 μM H2O2 challenge. Cell viability was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. DICER1 and Alu RNA were quantified by western blotting and real-time polymerase chain reaction, respectively. RESULTS H2O2 increased cell Alu RNA expression and decreased cell viability of ARPE-19, but had no significant impact on the DICER1 protein level. LUT, alone and in combination with ZEA pre-treatment, prior to H2O2 challenge significantly improved cell viability of ARPE-19 and reduced the level of Alu RNA compared to the negative control. CONCLUSIONS These results support the use of LUT alone, and in combination with ZEA, in AMD prevention and treatment. This study is also the first to report LUT modulating effects on Alu RNA.
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Affiliation(s)
- You Sheng Chong
- a School of Medicine , International Medical University , Kuala Lumpur , Malaysia
| | - Chun Wai Mai
- b Department of Pharmaceutical Chemistry, School of Pharmacy , International Medical University , Kuala Lumpur , Malaysia
| | - Chee Onn Leong
- c Department of Life Sciences, School of Pharmacy , International Medical University , Kuala Lumpur , Malaysia
| | - Lai Chun Wong
- b Department of Pharmaceutical Chemistry, School of Pharmacy , International Medical University , Kuala Lumpur , Malaysia
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Abstract
The ageing trajectory is plastic and can be slowed down by lifestyle factors, including good nutrition, adequate physical activity and avoidance of smoking. In humans, plant-based diets such as the Mediterranean dietary pattern are associated with healthier ageing and lower risk of age-related disease, whereas obesity accelerates ageing and increases the likelihood of most common complex diseases including CVD, T2D, dementia, musculoskeletal diseases and several cancers. As yet, there is only weak evidence in humans about the molecular mechanisms through which dietary factors modulate ageing but evidence from cell systems and animal models suggest that it is probable that better dietary choices influence all 9 hallmarks of ageing. It seems likely that better eating patterns retard ageing in at least two ways including (i) by reducing pervasive damaging processes such as inflammation, oxidative stress/redox changes and metabolic stress and (ii) by enhancing cellular capacities for damage management and repair. From a societal perspective, there is an urgent imperative to discover, and to implement, cost-effective lifestyle (especially dietary) interventions which enable each of us to age well, i.e. to remain physically and socially active and independent and to minimise the period towards the end of life when individuals suffer from frailty and multi-morbidity.
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Affiliation(s)
- Fiona C Malcomson
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - John C Mathers
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK.
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Kim JK, Park SU. Current results on the potential health benefits of lutein. EXCLI JOURNAL 2016; 15:308-14. [PMID: 27298616 PMCID: PMC4897658 DOI: 10.17179/excli2016-278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 04/23/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Jae Kwang Kim
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon, 406-772, Korea
| | - Sang Un Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 305-764, Korea,*To whom correspondence should be addressed: Sang Un Park, Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 305-764, Korea; Phone: +82-42-821-5730, Fax: +82-42-822-2631, E-mail:
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