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Lewis LLM, Dörschmann P, Seeba C, Thalenhorst T, Roider J, Iloki Assanga SB, Ruiz JCG, Del Castillo Castro T, Rosas-Burgos EC, Plascencia-Jatomea M, Ezquerra Brauer JM, Klettner A. Properties of Cephalopod Skin Ommochromes to Inhibit Free Radicals, and the Maillard Reaction and Retino-Protective Mechanisms in Cellular Models Concerning Oxidative Stress, Angiogenesis, and Inflammation. Antioxidants (Basel) 2022; 11:antiox11081574. [PMID: 36009293 PMCID: PMC9404994 DOI: 10.3390/antiox11081574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
Ommochromes are pigments of invertebrates that exhibit oxidative stress protection. The aim of this study was to investigate ommochromes extracted from cephalopod’s skin for their ability to inhibit age-related-macular degeneration (AMD)-related factors such as H2O2-induced and iron-dependent oxidative stress (ferroptosis and erastin), accumulation of advanced glycation end-products (AGEs), as well as vascular endothelial growth factor (VEGF), and inflammatory cytokines (interleukin 6 and interleukin 8) secretion. As cell systems, we used primary porcine retinal pigment epithelium (RPE), human retinal pigment epithelium cell line ARPE-19 and uveal melanoma cell line OMM-1. In vitro, ommochromes produced an antiglycation effect by the inhibition of fructosylation reaction. The ommochromes showed protective effects against erastin- induced cell death in ARPE-19. In addition, in long-term stimulation (7 days) ommochromes decreased constitutively secreted VEGF, as well as interleukin 6 and interleukin 8 induced by Poly I:C in primary RPE. No relevant effects were detected in OMM-1 cells. The effects are dependent on the cell system, time of exposition, and concentration. This substance is of interest for further research concerning age-related macular degeneration.
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Affiliation(s)
- Luján Lidianys María Lewis
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Blvd. Luis Encinas y Rosales S/N, Col. Centro, Hermosillo 83000, Sonora, Mexico
| | - Philipp Dörschmann
- Department of Ophthalmology, University of Kiel, University Medical Center, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany
| | - Charlotte Seeba
- Department of Ophthalmology, University of Kiel, University Medical Center, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany
| | - Tabea Thalenhorst
- Department of Ophthalmology, University of Kiel, University Medical Center, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany
| | - Johann Roider
- Department of Ophthalmology, University of Kiel, University Medical Center, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany
| | - Simon Bernard Iloki Assanga
- Department of Biological Chemical Sciences, Sonora University, Blvd. Luis Encinas y Rosales S/N, Col. Centro, Hermosillo 83000, Sonora, Mexico
| | - Juan Carlos Gálvez Ruiz
- Department of Biological Chemical Sciences, Sonora University, Blvd. Luis Encinas y Rosales S/N, Col. Centro, Hermosillo 83000, Sonora, Mexico
| | - Teresa Del Castillo Castro
- Department of Research on Polymers and Materials, Sonora University, Blvd. Luis Encinas y Rosales S/N, Col. Centro, Hermosillo 83000, Sonora, Mexico
| | - Ema Carina Rosas-Burgos
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Blvd. Luis Encinas y Rosales S/N, Col. Centro, Hermosillo 83000, Sonora, Mexico
| | - Maribel Plascencia-Jatomea
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Blvd. Luis Encinas y Rosales S/N, Col. Centro, Hermosillo 83000, Sonora, Mexico
| | - Josafat Marina Ezquerra Brauer
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Blvd. Luis Encinas y Rosales S/N, Col. Centro, Hermosillo 83000, Sonora, Mexico
| | - Alexa Klettner
- Department of Ophthalmology, University of Kiel, University Medical Center, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany
- Correspondence: ; Tel.: +49-431-500-24283
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Feldman TB, Dontsov AE, Yakovleva MA, Ostrovsky MA. Photobiology of lipofuscin granules in the retinal pigment epithelium cells of the eye: norm, pathology, age. Biophys Rev 2022; 14:1051-1065. [PMID: 36124271 PMCID: PMC9481861 DOI: 10.1007/s12551-022-00989-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 07/26/2022] [Indexed: 01/10/2023] Open
Abstract
Lipofuscin granules (LGs) are accumulated in the retinal pigment epithelium (RPE) cells. The progressive LG accumulation can somehow lead to pathology and accelerate the aging process. The review examines composition, spectral properties and photoactivity of LGs isolated from the human cadaver eyes. By use of atomic force microscopy and near-field microscopy, we have revealed the fluorescent heterogeneity of LGs. We have discovered the generation of reactive oxygen species by LGs, and found that LGs and melanolipofuscin granules are capable of photoinduced oxidation of lipids. It was shown that A2E, as the main fluorophore (bisretinoid) of LGs, is much less active as an oxidation photosensitizer than other fluorophores (bisretinoids) of LGs. Photooxidized products of bisretinoids pose a much greater danger to the cell than non-oxidized one. Our studies of the fluorescent properties of LGs and their fluorophores (bisretinoids) showed for the first time that their spectral characteristics change (shift to the short-wavelength region) in pathology and after exposure to ionizing radiation. By recording the fluorescence spectra and fluorescence decay kinetics of oxidized products of LG fluorophores, it is possible to improve the methods of early diagnosis of degenerative diseases. Lipofuscin ("aging pigment") is not an inert "slag". The photoactivity of LGs can pose a significant danger to the RPE cells. Fluorescence characteristics of LGs are a tool to detect early stages of degeneration in the retina and RPE.
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Affiliation(s)
- T. B. Feldman
- Department of Biology, Lomonosov Moscow State University, Moscow, Russia
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - A. E. Dontsov
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - M. A. Yakovleva
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - M. A. Ostrovsky
- Department of Biology, Lomonosov Moscow State University, Moscow, Russia
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
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Xu Y, Li D, Su G, Cai S. The effect of A2E on lysosome membrane permeability during blue light-induced human RPEs apoptosis. BMC Ophthalmol 2022; 22:241. [PMID: 35641967 PMCID: PMC9158258 DOI: 10.1186/s12886-022-02464-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 11/05/2021] [Accepted: 05/24/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To investigate the effect of N-retinyl-N-retinylidene ethanolamine (A2E) on lysosome membrane permeability (LMP) during blue light-induced human retinal pigment epithelium cells (RPEs) apoptosis. METHODS By building an A2E and blue light irradiation inducing RPEs damage model, the CCK-8 assay was used to detect RPEs viability loaded with different concentrations of A2E after different culturing time to determine the optimum A2E loading concentration. And the RPEs fluorescence intensity changes were observed by fluorescence microscopy loaded with different concentration of A2E. The RPEs were divided into four groups randomly: control group, A2E-loaded group, blue light irradiation group, and A2E-loaded + blue light irradiation group. Annexin V-FITC/PI and TUNEL/DAPI methods were used to detect RPEs apoptotic rate. Laser scanning confocal microscopy (LSCM) was used to observe RPEs LMP changes stained by acridine orange (AO) method. RESULTS The CCK-8 result showed a downward trend in cells viability of RPEs loaded with increasing concentration of A2E and extending culturing time. The optimum A2E loading concentration was determined at 25 μmol/L. With increasing A2E loading concentrations, the intensity of fluorescence in RPEs decreased gradually. The RPEs apoptotic rate in blue light irradiation + A2E-loaded group was significantly higher than those in other three groups detected by Annexin V-FITC/PI method, which was similar to TUNEL/DAPI's result. After AO staining, cytoplasmic and nucleolar RNAs emits green fluorescence; lysosomes emit red fluorescence. Through the interference of A2E and blue light on RPEs, red fluorescent leakage from the lysosomes (means LMP increasing) can be observed. The mean red fluorescence intensity was chosen as the statistics indicator to estimate LMP change in RPEs cultured in vitro. Compared with the control group, the red fluorescence intensity decreased in A2E-loaded group, blue light irradiation group, and blue light irradiation + A2E-loaded group. Meanwhile, the mean red fluorescence intensity in blue light irradiation + A2E-loaded group was the lowest. CONCLUSIONS Both A2E-loaded and blue light irradiation could induce human RPEs apoptosis, and the two factors had a synergistic effect. In addition, both A2E and blue light can lead to LMP increasing, which indicated LMP change might be the upstream part in inducing mitochondrion-dependent apoptotic pathway. These data provided evidence that A2E as the most important auto-fluorescence substance in lipofuscin is an initiator of blue light-mediated damage of RPEs and participate in pathogenesis of retinal degenerative diseases in humans.
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Affiliation(s)
- Yan Xu
- Department of Ophthalmology, Affiliated Hospital of Zunyi Medical University, No.149 Dalian Road, Zunyi, 563000, Guizhou, China
- Department of Ophthalmology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo No.2 Hospital, Ningbo, Zhejiang, China
| | - Dan Li
- Department of Ophthalmology, Affiliated Hospital of Zunyi Medical University, No.149 Dalian Road, Zunyi, 563000, Guizhou, China
- Department of Ophthalmology, The People's Hospital of Longchang, Neijiang, Sichuan, China
| | - Gang Su
- Department of Ophthalmology, Affiliated Hospital of Zunyi Medical University, No.149 Dalian Road, Zunyi, 563000, Guizhou, China
- Guizhou Eye Hospital, Zunyi, Guizhou, China
- Guizhou Provincial Branch of National Eye Disease Clinical Medicine Research Center, Zunyi, Guizhou, China
- Special Key Laboratory of Ocular Diseases of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou, China
| | - Shanjun Cai
- Department of Ophthalmology, Affiliated Hospital of Zunyi Medical University, No.149 Dalian Road, Zunyi, 563000, Guizhou, China.
- Guizhou Eye Hospital, Zunyi, Guizhou, China.
- Guizhou Provincial Branch of National Eye Disease Clinical Medicine Research Center, Zunyi, Guizhou, China.
- Special Key Laboratory of Ocular Diseases of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou, China.
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Ushakova NA, Brodsky ES, Tikhonova OV, Dontsov AE, Marsova MV, Shelepchikov AA, Bastrakov AI. Novel Extract from Beetle Ulomoides dermestoides: A Study of Composition and Antioxidant Activity. Antioxidants (Basel) 2021; 10:antiox10071055. [PMID: 34208791 PMCID: PMC8300742 DOI: 10.3390/antiox10071055] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/19/2021] [Accepted: 06/25/2021] [Indexed: 01/05/2023] Open
Abstract
A biologically active extract from the darkling beetle Ulomoides dermestoides was obtained using the electro-pulse plasma dynamic extraction method. The beetle water extract contained a complex of antioxidant substances such as antioxidant enzymes and nonprotein antioxidants, as well as a complex of heat shock antistress proteins. This determines the rather high antioxidant activity of the aqueous extract of the beetle, i.e., 1 mg of dry matter/mL of the extract has an equivalent antioxidant activity to 0.2 mM Trolox (a water-soluble analog of vitamin E). It was shown that the beetle extract can lead to a 25-30% increase in the average lifespan of nematode Caenorhabditiselegans, under normal conditions, and a 12-17% increase under conditions of oxidative stress (with paraquat), and significantly inhibits the fructosylation reaction of serum albumin. Therefore, the beetle aqueous extract shows promise as a biologically active complex exhibiting antioxidant activity.
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Affiliation(s)
- Nina A. Ushakova
- A.N. Severtsov Institute of Ecology and Evolution RAS, Leninsky Prospect, 33, 119071 Moscow, Russia; (N.A.U.); (E.S.B.); (A.A.S.); (A.I.B.)
| | - Efim S. Brodsky
- A.N. Severtsov Institute of Ecology and Evolution RAS, Leninsky Prospect, 33, 119071 Moscow, Russia; (N.A.U.); (E.S.B.); (A.A.S.); (A.I.B.)
| | - Olga V. Tikhonova
- Institute of Biomedical Chemistry (IBMC), Pogodinskaya Str., 10, 119121 Moscow, Russia;
| | - Alexander E. Dontsov
- N.M. Emanuel Institute of Biochemical Physics, RAS, Kosygina Str., 4, 119334 Moscow, Russia
- Correspondence:
| | - Maria V. Marsova
- N.I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Gubkina Str., 3, 119991 Moscow, Russia;
| | - Andrey A. Shelepchikov
- A.N. Severtsov Institute of Ecology and Evolution RAS, Leninsky Prospect, 33, 119071 Moscow, Russia; (N.A.U.); (E.S.B.); (A.A.S.); (A.I.B.)
| | - Alexander I. Bastrakov
- A.N. Severtsov Institute of Ecology and Evolution RAS, Leninsky Prospect, 33, 119071 Moscow, Russia; (N.A.U.); (E.S.B.); (A.A.S.); (A.I.B.)
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Donato L, D’Angelo R, Alibrandi S, Rinaldi C, Sidoti A, Scimone C. Effects of A2E-Induced Oxidative Stress on Retinal Epithelial Cells: New Insights on Differential Gene Response and Retinal Dystrophies. Antioxidants (Basel) 2020; 9:E307. [PMID: 32290199 PMCID: PMC7222197 DOI: 10.3390/antiox9040307] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/07/2020] [Accepted: 04/08/2020] [Indexed: 12/11/2022] Open
Abstract
Oxidative stress represents one of the principal inductors of lifestyle-related and genetic diseases. Among them, inherited retinal dystrophies, such as age-related macular degeneration and retinitis pigmentosa, are well known to be susceptible to oxidative stress. To better understand how high reactive oxygen species levels may be involved in retinal dystrophies onset and progression, we performed a whole RNA-Seq experiment. It consisted of a comparison of transcriptomes' profiles among human retinal pigment epithelium cells exposed to the oxidant agent N-retinylidene-N-retinylethanolamine (A2E), considering two time points (3h and 6h) after the basal one. The treatment with A2E determined relevant differences in gene expression and splicing events, involving several new pathways probably related to retinal degeneration. We found 10 different clusters of pathways involving differentially expressed and differentially alternative spliced genes and highlighted the sub- pathways which could depict a more detailed scenario determined by the oxidative-stress-induced condition. In particular, regulation and/or alterations of angiogenesis, extracellular matrix integrity, isoprenoid-mediated reactions, physiological or pathological autophagy, cell-death induction and retinal cell rescue represented the most dysregulated pathways. Our results could represent an important step towards discovery of unclear molecular mechanisms linking oxidative stress and etiopathogenesis of retinal dystrophies.
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Affiliation(s)
- Luigi Donato
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Division of Medical Biotechnologies and Preventive Medicine, University of Messina, 98125 Messina, Italy; (R.D.); (S.A.); (C.R.); (C.S.)
- Department of Biomolecular Strategies, Genetics and Avant-Garde Therapies, I.E.ME.S.T., 90139 Palermo, Italy
| | - Rosalia D’Angelo
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Division of Medical Biotechnologies and Preventive Medicine, University of Messina, 98125 Messina, Italy; (R.D.); (S.A.); (C.R.); (C.S.)
- Department of Biomolecular Strategies, Genetics and Avant-Garde Therapies, I.E.ME.S.T., 90139 Palermo, Italy
| | - Simona Alibrandi
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Division of Medical Biotechnologies and Preventive Medicine, University of Messina, 98125 Messina, Italy; (R.D.); (S.A.); (C.R.); (C.S.)
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98125 Messina, Italy
| | - Carmela Rinaldi
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Division of Medical Biotechnologies and Preventive Medicine, University of Messina, 98125 Messina, Italy; (R.D.); (S.A.); (C.R.); (C.S.)
| | - Antonina Sidoti
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Division of Medical Biotechnologies and Preventive Medicine, University of Messina, 98125 Messina, Italy; (R.D.); (S.A.); (C.R.); (C.S.)
- Department of Biomolecular Strategies, Genetics and Avant-Garde Therapies, I.E.ME.S.T., 90139 Palermo, Italy
| | - Concetta Scimone
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Division of Medical Biotechnologies and Preventive Medicine, University of Messina, 98125 Messina, Italy; (R.D.); (S.A.); (C.R.); (C.S.)
- Department of Biomolecular Strategies, Genetics and Avant-Garde Therapies, I.E.ME.S.T., 90139 Palermo, Italy
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Pawlak AM, Olchawa M, Koscielniak A, Zadlo A, Broniec A, Oles T, Sarna TJ. Oxidized Lipids Decrease Phagocytic Activity of ARPE‐19 Cells In Vitro. EUR J LIPID SCI TECH 2019. [DOI: 10.1002/ejlt.201800476] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Anna M. Pawlak
- Faculty of BiochemistryDepartment of Biophysics, Biophysics and BiotechnologyJagiellonian University30‐007 KrakowPoland
| | - Magdalena Olchawa
- Faculty of BiochemistryDepartment of Biophysics, Biophysics and BiotechnologyJagiellonian University30‐007 KrakowPoland
| | - Anna Koscielniak
- Faculty of BiochemistryDepartment of Biophysics, Biophysics and BiotechnologyJagiellonian University30‐007 KrakowPoland
- Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical EngineeringAGH‐University of Science and Technology30‐059 KrakówPoland
| | - Andrzej Zadlo
- Faculty of BiochemistryDepartment of Biophysics, Biophysics and BiotechnologyJagiellonian University30‐007 KrakowPoland
| | - Agnieszka Broniec
- Faculty of BiochemistryDepartment of Biophysics, Biophysics and BiotechnologyJagiellonian University30‐007 KrakowPoland
| | - Tomasz Oles
- Faculty of BiochemistryDepartment of Biophysics, Biophysics and BiotechnologyJagiellonian University30‐007 KrakowPoland
| | - Tadeusz J. Sarna
- Faculty of BiochemistryDepartment of Biophysics, Biophysics and BiotechnologyJagiellonian University30‐007 KrakowPoland
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Abstract
For the first time, it was found that the hormone melatonin exhibited antiglycation activity in vitro. It was shown that melatonin significantly slowed down the accumulation of fluorescent Schiff adducts formed as a result of BSA modification in the presence of high concentration of fructose. It was noted that, unlike the fructosylation reaction, melatonin did not affect the process of modification of BSA by methylglyoxal. We assume that melatonin is able to inhibit the development of the Maillard reaction but does not affect the process of BSA modification by reactive carbonyls.
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Affiliation(s)
- A E Dontsov
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, 119334, Russia.
| | - N D Vospelnikova
- Sechenov First Moscow State Medical University, Ministry of Healthcare of the Russian Federation, Moscow, 119992, Russia
| | - P P Zack
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, 119334, Russia
| | - M A Ostrovsky
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, 119334, Russia
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