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Alaimo A, Di Santo MC, Domínguez Rubio AP, Chaufan G, García Liñares G, Pérez OE. Toxic effects of A2E in human ARPE-19 cells were prevented by resveratrol: a potential nutritional bioactive for age-related macular degeneration treatment. Arch Toxicol 2019; 94:553-572. [PMID: 31792590 DOI: 10.1007/s00204-019-02637-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/26/2019] [Indexed: 01/23/2023]
Abstract
Age-related macular degeneration (AMD) is a late-onset retinal disease and the leading cause of central vision loss in the elderly. Degeneration of retinal pigment epithelial cells (RPE) is a crucial contributing factor responsible for the onset and progression of AMD. The toxic fluorophore N-retinyl-N-retinylidene ethanolamine (A2E), a major lipofuscin component, accumulates in RPE cells with age. Phytochemicals with antioxidant properties may have a potential role in both the prevention and treatment of this age-related ocular disease. Particularly, there is an increased interest in the therapeutic effects of resveratrol (RSV), a naturally occurring polyphenol (3,4',5-trihydroxystilbene). However, the underlying mechanism of the RSV antioxidative effect in ocular diseases has not been well explored. We hypothesized that this bioactive compound may have beneficial effects for AMD. To this end, to investigate the potential profits of RSV against A2E-provoked oxidative damage, we used human RPE cell line (ARPE-19). RSV (25 µM) attenuates the cytotoxicity and the typical morphological characteristics of apoptosis observed in 25 µM A2E-laden cells. RSV pretreatment strengthened cell monolayer integrity through the preservation of the transepithelial electrical resistance and reduced the fluorescein isothiocyanate (FITC)-dextran diffusion rate as well as cytoskeleton architecture. In addition, RSV exhorts protective effects against A2E-induced modifications in the intracellular redox balance. Finally, RSV also prevented A2E-induced mitochondrial network fragmentation. These findings reinforce the idea that RSV represents an attractive bioactive for therapeutic intervention against ocular diseases associated with oxidative stress such as AMD.
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Affiliation(s)
- Agustina Alaimo
- Departamento de Química Biológica, Laboratorio Interdisciplinario de Dinámica Celular y Nanoherramientas, CONICET-Universidad de Buenos Aires, Instituto de Química Biológica Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Pabellón 2, Ciudad Universitaria, 1428, Buenos Aires, Argentina.
| | - Mariana Carolina Di Santo
- Departamento de Química Biológica, Laboratorio Interdisciplinario de Dinámica Celular y Nanoherramientas, CONICET-Universidad de Buenos Aires, Instituto de Química Biológica Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Pabellón 2, Ciudad Universitaria, 1428, Buenos Aires, Argentina
| | - Ana Paula Domínguez Rubio
- Departamento de Química Biológica, Laboratorio Interdisciplinario de Dinámica Celular y Nanoherramientas, CONICET-Universidad de Buenos Aires, Instituto de Química Biológica Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Pabellón 2, Ciudad Universitaria, 1428, Buenos Aires, Argentina
| | - Gabriela Chaufan
- Departamento de Química Biológica, Laboratorio de Enzimología, Estrés Oxidativo y Metabolismo, CONICET-Universidad de Buenos Aires, Instituto de Química Biológica Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Pabellón 2, Ciudad Universitaria, 1428, Buenos Aires, Argentina
| | - Guadalupe García Liñares
- Departamento de Química Orgánica, Laboratorio de Biocatálisis, CONICET-Universidad de Buenos Aires, Unidad de Microanálisis y Métodos Físicos en Química Orgánica (UMYMFOR), Facultad de Ciencias Exactas y Naturales, Pabellón 2, Ciudad Universitaria, 1428, Buenos Aires, Argentina
| | - Oscar Edgardo Pérez
- Departamento de Química Biológica, Laboratorio Interdisciplinario de Dinámica Celular y Nanoherramientas, CONICET-Universidad de Buenos Aires, Instituto de Química Biológica Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Pabellón 2, Ciudad Universitaria, 1428, Buenos Aires, Argentina.
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Luo ZW, Wang HT, Wang N, Sheng WW, Jin M, Lu Y, Bai YJ, Zou SQ, Pang YL, Xu H, Zhang X. Establishment of an adult zebrafish model of retinal neurodegeneration induced by NMDA. Int J Ophthalmol 2019; 12:1250-1261. [PMID: 31456914 PMCID: PMC6694058 DOI: 10.18240/ijo.2019.08.04] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 05/31/2019] [Indexed: 02/07/2023] Open
Abstract
AIM To establish a model of retinal neurodegeneration induced by N-Methyl-D-aspartic acid (NMDA) in adult zebrafish. METHODS We compared the effects of three different NMDA delivery methods on retinal neurodegeneration in adult zebrafish: immersion (I.M.), intravitreal injection (I.V.), and intraperitoneal injection (I.P.), and examined retinal pathology and degeneration by hematoxylin and eosin and TUNEL staining in the treated zebrafish. Effects of the NMDA receptor antagonist MK-801 and the natural product resveratrol on NMDA-induced retinal neurodegeneration were also assessed. RESULTS The thickened inner retina was seen in histology with 100 µmol/L NMDA by I.M. administration. Significant apoptosis in the retinal ganglion cell layer and retinal thickness reduction occurred in 0.5 mol/L NMDA I.P. administration group.Seizure-like behavioral changes, but no retinal histological alteration occurred in 16 mg/kg NMDA I.P. administration group. Resveratrol and MK-801 prevented NMDA-induced retinal neurodegeneration in the zebrafish. CONCLUSION Among the three drug administration methods, I.V. injection of NMDA is the most suitable for establishment of an acute retinal damage model in zebrafish. I.M. with NMDA is likely the best for use as a chronic retinal damage model. I.P. treatment with NMDA causes brain damage. Resveratrol and MK801 may be a clinically valuable treatment for retinal neurodegeneration.
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Affiliation(s)
- Zhi-Wen Luo
- Affiliated Eye Hospital of Nanchang University; Jiangxi Research Institute of Ophthalmology & Visual Science, Nanchang 330006, Jiangxi Province, China
- Queen Mary School of Nanchang University, Nanchang 330031, Jiangxi Province, China
| | - Han-Tsing Wang
- Institute of Life Science, Nanchang University, Nanchang 330031, Jiangxi Province, China
- Jiangxi Provincial Collaborative Innovation Center for Cardiovascular, Digestive and Neuropsychiatric Diseases, Nanchang 330031, Jiangxi Province, China
| | - Ning Wang
- Affiliated Eye Hospital of Nanchang University; Jiangxi Research Institute of Ophthalmology & Visual Science, Nanchang 330006, Jiangxi Province, China
- Queen Mary School of Nanchang University, Nanchang 330031, Jiangxi Province, China
| | - Wei-Wei Sheng
- Affiliated Eye Hospital of Nanchang University; Jiangxi Research Institute of Ophthalmology & Visual Science, Nanchang 330006, Jiangxi Province, China
- Queen Mary School of Nanchang University, Nanchang 330031, Jiangxi Province, China
| | - Ming Jin
- Affiliated Eye Hospital of Nanchang University; Jiangxi Research Institute of Ophthalmology & Visual Science, Nanchang 330006, Jiangxi Province, China
| | - Ye Lu
- Affiliated Eye Hospital of Nanchang University; Jiangxi Research Institute of Ophthalmology & Visual Science, Nanchang 330006, Jiangxi Province, China
| | - Yi-Jiang Bai
- Affiliated Eye Hospital of Nanchang University; Jiangxi Research Institute of Ophthalmology & Visual Science, Nanchang 330006, Jiangxi Province, China
- Queen Mary School of Nanchang University, Nanchang 330031, Jiangxi Province, China
| | - Su-Qi Zou
- Institute of Life Science, Nanchang University, Nanchang 330031, Jiangxi Province, China
- Jiangxi Provincial Collaborative Innovation Center for Cardiovascular, Digestive and Neuropsychiatric Diseases, Nanchang 330031, Jiangxi Province, China
| | - Yu-Lian Pang
- Affiliated Eye Hospital of Nanchang University; Jiangxi Research Institute of Ophthalmology & Visual Science, Nanchang 330006, Jiangxi Province, China
| | - Hong Xu
- Institute of Life Science, Nanchang University, Nanchang 330031, Jiangxi Province, China
- Jiangxi Provincial Collaborative Innovation Center for Cardiovascular, Digestive and Neuropsychiatric Diseases, Nanchang 330031, Jiangxi Province, China
| | - Xu Zhang
- Affiliated Eye Hospital of Nanchang University; Jiangxi Research Institute of Ophthalmology & Visual Science, Nanchang 330006, Jiangxi Province, China
- Jiangxi Provincial Collaborative Innovation Center for Cardiovascular, Digestive and Neuropsychiatric Diseases, Nanchang 330031, Jiangxi Province, China
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Lin HY, Chen YS, Wang K, Chien HW, Hsieh YH, Yang SF. Fisetin inhibits epidermal growth factor-induced migration of ARPE-19 cells by suppression of AKT activation and Sp1-dependent MMP-9 expression. Mol Vis 2017; 23:900-910. [PMID: 29296070 PMCID: PMC5741382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 12/08/2017] [Indexed: 11/11/2022] Open
Abstract
Purpose Proliferative vitreoretinopathy (PVR) can result in abnormal migration of RPE cells. Fisetin is a naturally occurring compound that has been reported to have antitumor effects, but its effects on epidermal growth factor (EGF)-induced cell migration and the underlying mechanisms remain unclear. Methods Effects of fisetin on EGF-induced cell viability and migration were examined with 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and in vitro migration assays. Reverse transcription-PCR (RT-PCR) and immunoblotting were performed to evaluate matrix metallopeptidase-9 (MMP-9) expression and activation of specificity protein-1 (Sp1) and protein kinase B (AKT) in ARPE-19 cells treated with EGF and with or without fisetin. Luciferase and chromatin immunoprecipitation (ChIP) assays were performed to examine Sp1 transcription activity and MMP-9 binding activity. Results Fisetin did not affect ARPE-19 cell viability and significantly inhibited the EGF-induced migration capacity of ARPE-19 cells. Furthermore, fisetin exerted an antimigratory effect and suppressed MMP-9 mRNA and protein expression. Treatment with EGF induced phosphorylation of AKT and expression of MMP-9 and Sp1. Fisetin combined with LY294002 (an inhibitor of AKT) prevented the EGF-induced migration involved in downregulation of Sp1 and MMP-9 expression. Luciferase and ChIP assays suggested that fisetin remarkably decreased the EGF-induced transcription activity of MMP-9 and Sp1 and inhibited EGF-mediated Sp1 from directly binding to the MMP-9 promoter in ARPE-19 cells. Conclusions Fisetin inhibited EGF-induced cell migration via modulation of AKT/Sp1-dependent MMP-9 transcriptional activity. Therefore, fisetin may be a potential agent in the treatment of migratory PVR diseases.
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Affiliation(s)
- Hung-Yu Lin
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Ophthalmology, Show Chwan Memorial Hospital, Changhua, Taiwan
- Department of Optometry, Yuan Pei University, Hsinchu, Taiwan
| | - Yong-Syuan Chen
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
| | - Kai Wang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Departments of Ophthalmology, Cathay General Hospital Sijhih Branch, New Taipei City, Taiwan
- Department of Ophthalmology, Cathay General Hospital, Taipei, Taiwan
| | - Hsiang-Wen Chien
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Departments of Ophthalmology, Cathay General Hospital Sijhih Branch, New Taipei City, Taiwan
- Department of Ophthalmology, Cathay General Hospital, Taipei, Taiwan
| | - Yi-Hsien Hsieh
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
- Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Clinical laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Medical Research, Chung Shan Medical University, Taichung, Taiwan
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Resveratrol reverses the adverse effects of bevacizumab on cultured ARPE-19 cells. Sci Rep 2017; 7:12242. [PMID: 28947815 PMCID: PMC5612947 DOI: 10.1038/s41598-017-12496-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 09/11/2017] [Indexed: 01/03/2023] Open
Abstract
Age-related macular degeneration (AMD) and proliferative diabetic retinopathy (PDR) are one of the major causes of blindness caused by neo-vascular changes in the retina. Intravitreal anti-VEGF injections are widely used in the treatment of wet-AMD and PDR. A significant percentage of treated patients have complications of repeated injections. Resveratrol (RES) is a polyphenol phytoalexin with anti-oxidative, anti-inflammatory and anti-proliferative properties. Hence, we hypothesized that if RES is used in combination with bevacizumab (BEV, anti-VEGF), it could reverse the adverse effects that precipitate fibrotic changes, drusen formation, tractional retinal detachment and so on. Human retinal pigment epithelial cells were treated with various combinations of BEV and RES. There was partial reduction in secreted VEGF levels compared to untreated controls. Epithelial-mesenchymal transition was lower in BEV + RES treated cultures compared to BEV treated cultures. The proliferation status was similar in BEV + RES as well as BEV treated cultures both groups. Phagocytosis was enhanced in the presence of BEV + RES compared to BEV. Furthermore, we observed that notch signaling was involved in reversing the adverse effects of BEV. This study paves way for a combinatorial strategy to treat as well as prevent adverse effects of therapy in patients with wet AMD and PDR.
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Zhao X, Chen R, Liu M, Feng J, Chen J, Hu K. Remodeling the blood-brain barrier microenvironment by natural products for brain tumor therapy. Acta Pharm Sin B 2017; 7:541-553. [PMID: 28924548 PMCID: PMC5595291 DOI: 10.1016/j.apsb.2017.07.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 06/08/2017] [Accepted: 07/12/2017] [Indexed: 12/23/2022] Open
Abstract
Brain tumor incidence shows an upward trend in recent years; brain tumors account for 5% of adult tumors, while in children, this figure has increased to 70%. Moreover, 20%-30% of malignant tumors will eventually metastasize into the brain. Both benign and malignant tumors can cause an increase in intracranial pressure and brain tissue compression, leading to central nervous system (CNS) damage which endangers the patients' lives. Despite the many approaches to treating brain tumors and the progress that has been made, only modest gains in survival time of brain tumor patients have been achieved. At present, chemotherapy is the treatment of choice for many cancers, but the special structure of the blood-brain barrier (BBB) limits most chemotherapeutic agents from passing through the BBB and penetrating into tumors in the brain. The BBB microenvironment contains numerous cell types, including endothelial cells, astrocytes, peripheral cells and microglia, and extracellular matrix (ECM). Many chemical components of natural products are reported to regulate the BBB microenvironment near brain tumors and assist in their treatment. This review focuses on the composition and function of the BBB microenvironment under both physiological and pathological conditions, and the current research progress in regulating the BBB microenvironment by natural products to promote the treatment of brain tumors.
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Affiliation(s)
- Xiao Zhao
- Murad Research Center for Modernized Chinese Medicine, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Rujing Chen
- Murad Research Center for Modernized Chinese Medicine, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Mei Liu
- Murad Research Center for Modernized Chinese Medicine, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jianfang Feng
- Murad Research Center for Modernized Chinese Medicine, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jun Chen
- Key Laboratory of Smart Drug Delivery, Fudan University, Ministry of Education, Shanghai 201203, China
| | - Kaili Hu
- Murad Research Center for Modernized Chinese Medicine, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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