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Haase S, Kuhbandner K, Mühleck F, Gisevius B, Freudenstein D, Hirschberg S, Lee DH, Kuerten S, Gold R, Haghikia A, Linker RA. Dietary galactose exacerbates autoimmune neuroinflammation via advanced glycation end product-mediated neurodegeneration. Front Immunol 2024; 15:1367819. [PMID: 39185426 PMCID: PMC11341352 DOI: 10.3389/fimmu.2024.1367819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 07/26/2024] [Indexed: 08/27/2024] Open
Abstract
Background Recent studies provide increasing evidence for a relevant role of lifestyle factors including diet in the pathogenesis of neuroinflammatory diseases such as multiple sclerosis (MS). While the intake of saturated fatty acids and elevated salt worsen the disease outcome in the experimental model of MS by enhanced inflammatory but diminished regulatory immunological processes, sugars as additional prominent components in our daily diet have only scarcely been investigated so far. Apart from glucose and fructose, galactose is a common sugar in the so-called Western diet. Methods We investigated the effect of a galactose-rich diet during neuroinflammation using myelin oligodendrocyte glycoprotein-induced experimental autoimmune encephalomyelitis (MOG-EAE) as a model disease. We investigated peripheral immune reactions and inflammatory infiltration by ex vivo flow cytometry analysis and performed histological staining of the spinal cord to analyze effects of galactose in the central nervous system (CNS). We analyzed the formation of advanced glycation end products (AGEs) by fluorescence measurements and investigated galactose as well as galactose-induced AGEs in oligodendroglial cell cultures and induced pluripotent stem cell-derived primary neurons (iPNs). Results Young mice fed a galactose-rich diet displayed exacerbated disease symptoms in the acute phase of EAE as well as impaired recovery in the chronic phase. Galactose did not affect peripheral immune reactions or inflammatory infiltration into the CNS, but resulted in increased demyelination, oligodendrocyte loss and enhanced neuro-axonal damage. Ex vivo analysis revealed an increased apoptosis of oligodendrocytes isolated from mice adapted on a galactose-rich diet. In vitro, treatment of cells with galactose neither impaired the maturation nor survival of oligodendroglial cells or iPNs. However, incubation of proteins with galactose in vitro led to the formation AGEs, that were increased in the spinal cord of EAE-diseased mice fed a galactose-rich diet. In oligodendroglial and neuronal cultures, treatment with galactose-induced AGEs promoted enhanced cell death compared to control treatment. Conclusion These results imply that galactose-induced oligodendrocyte and myelin damage during neuroinflammation may be mediated by AGEs, thereby identifying galactose and its reactive products as potential dietary risk factors for neuroinflammatory diseases such as MS.
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MESH Headings
- Animals
- Galactose/administration & dosage
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Encephalomyelitis, Autoimmune, Experimental/metabolism
- Mice
- Glycation End Products, Advanced/metabolism
- Glycation End Products, Advanced/administration & dosage
- Neuroinflammatory Diseases/immunology
- Neuroinflammatory Diseases/pathology
- Neuroinflammatory Diseases/metabolism
- Neuroinflammatory Diseases/etiology
- Mice, Inbred C57BL
- Female
- Oligodendroglia/metabolism
- Oligodendroglia/pathology
- Oligodendroglia/immunology
- Disease Models, Animal
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Affiliation(s)
- Stefanie Haase
- Department of Neurology, University Hospital Regensburg, Regensburg, Germany
| | - Kristina Kuhbandner
- Department of Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Florian Mühleck
- Department of Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Barbara Gisevius
- Department of Neurology, St. Josef-Hospital Bochum, Ruhr-University Bochum, Bochum, Germany
| | - David Freudenstein
- Department of Neurology, University Hospital Regensburg, Regensburg, Germany
| | - Sarah Hirschberg
- Department of Neurology, St. Josef-Hospital Bochum, Ruhr-University Bochum, Bochum, Germany
| | - De-Hyung Lee
- Department of Neurology, University Hospital Regensburg, Regensburg, Germany
| | - Stefanie Kuerten
- Institute of Neuroanatomy, Faculty of Medicine, University of Bonn and University Hospital Bonn, Bonn, Germany
| | - Ralf Gold
- Department of Neurology, St. Josef-Hospital Bochum, Ruhr-University Bochum, Bochum, Germany
| | - Aiden Haghikia
- Department of Neurology, University Medicine Magdeburg, Magdeburg, Germany
| | - Ralf A. Linker
- Department of Neurology, University Hospital Regensburg, Regensburg, Germany
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2
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Shen CY, Lu CH, Cheng CF, Li KJ, Kuo YM, Wu CH, Liu CH, Hsieh SC, Tsai CY, Yu CL. Advanced Glycation End-Products Acting as Immunomodulators for Chronic Inflammation, Inflammaging and Carcinogenesis in Patients with Diabetes and Immune-Related Diseases. Biomedicines 2024; 12:1699. [PMID: 39200164 PMCID: PMC11352041 DOI: 10.3390/biomedicines12081699] [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: 06/30/2024] [Revised: 07/22/2024] [Accepted: 07/27/2024] [Indexed: 09/02/2024] Open
Abstract
Increased production of advanced glycation end products (AGEs) among reducing sugars (glucose, fructose, galactose, or ribose) and amino acids/proteins via non-enzymatic Maillard reaction can be found in lifestyle-related disease (LSRD), metabolic syndrome (MetS), and obesity and immune-related diseases. Increased serum levels of AGEs may induce aging, diabetic complications, cardiovascular diseases (CVD), neurodegenerative diseases (NDD), cancer, and inflamm-aging (inflammation with immunosenescence). The Maillard reaction can also occur among reducing sugars and lipoproteins or DNAs to alter their structure and induce immunogenicity/genotoxicity for carcinogenesis. AGEs, as danger-associated molecular pattern molecules (DAMPs), operate via binding to receptor for AGE (RAGE) or other scavenger receptors on cell surface to activate PI3K-Akt-, P38-MAPK-, ERK1/2-JNK-, and MyD88-induced NF-κB signaling pathways to mediate various pathological effects. Recently, the concept of "inflamm-aging" became more defined, and we have unveiled some interesting findings in relation to it. The purpose of the present review is to dissect the potential molecular basis of inflamm-aging in patients with diabetes and immune-mediated diseases caused by different AGEs.
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Affiliation(s)
- Chieh-Yu Shen
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, # 7 Chung-Shan South Road, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-F.C.); (K.-J.L.)
| | - Cheng-Hsun Lu
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, # 7 Chung-Shan South Road, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-F.C.); (K.-J.L.)
- Institute of Clinical Medicine, National Taiwan University College of Medicine, # 7 Chung-Shan South Road, Taipei 10002, Taiwan
| | - Chiao-Feng Cheng
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, # 7 Chung-Shan South Road, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-F.C.); (K.-J.L.)
- Institute of Clinical Medicine, National Taiwan University College of Medicine, # 7 Chung-Shan South Road, Taipei 10002, Taiwan
| | - Ko-Jen Li
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, # 7 Chung-Shan South Road, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-F.C.); (K.-J.L.)
| | - Yu-Min Kuo
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, # 7 Chung-Shan South Road, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-F.C.); (K.-J.L.)
| | - Cheng-Han Wu
- Department of Internal Medicine, National Taiwan University Hospital-Hsinchu Branch, # 2, Section 1, Shengyi Road, Hsinchu County 302058, Taiwan;
| | - Chin-Hsiu Liu
- Department of Internal Medicine, National Taiwan University Hospital-Yunlin Branch, # 579, Section 2, Yunlin Road, Yunlin County 640203, Taiwan;
| | - Song-Chou Hsieh
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, # 7 Chung-Shan South Road, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-F.C.); (K.-J.L.)
| | - Chang-Youh Tsai
- Department of Internal Medicine, Fu-Jen Catholic University Hospital, College of Medicine, Fu-Jen Catholic University, # 69 Guizi Road, New Taipei City 24352, Taiwan
| | - Chia-Li Yu
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, # 7 Chung-Shan South Road, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-F.C.); (K.-J.L.)
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3
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Ooi H, Furukawa A, Takeuchi M, Koriyama Y. Toxic Advanced Glycation End-Products Inhibit Axonal Elongation Mediated by β-Tubulin Aggregation in Mice Optic Nerves. Int J Mol Sci 2024; 25:7409. [PMID: 39000515 PMCID: PMC11242247 DOI: 10.3390/ijms25137409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 06/23/2024] [Accepted: 07/02/2024] [Indexed: 07/16/2024] Open
Abstract
Advanced glycation end-products (AGEs) form through non-enzymatic glycation of various proteins. Optic nerve degeneration is a frequent complication of diabetes, and retinal AGE accumulation is strongly linked to the development of diabetic retinopathy. Type 2 diabetes mellitus is a major risk factor for Alzheimer's disease (AD), with patients often exhibiting optic axon degeneration in the nerve fiber layer. Notably, a gap exists in our understanding of how AGEs contribute to neuronal degeneration in the optic nerve within the context of both diabetes and AD. Our previous work demonstrated that glyceraldehyde (GA)-derived toxic advanced glycation end-products (TAGE) disrupt neurite outgrowth through TAGE-β-tubulin aggregation and tau phosphorylation in neural cultures. In this study, we further illustrated GA-induced suppression of optic nerve axonal elongation via abnormal β-tubulin aggregation in mouse retinas. Elucidating this optic nerve degeneration mechanism holds promise for bridging the knowledge gap regarding vision loss associated with diabetes mellitus and AD.
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Affiliation(s)
- Hayahide Ooi
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka 513-8670, Japan; (H.O.); (A.F.)
| | - Ayako Furukawa
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka 513-8670, Japan; (H.O.); (A.F.)
| | - Masayoshi Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Kahoku 920-0293, Japan;
| | - Yoshiki Koriyama
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka 513-8670, Japan; (H.O.); (A.F.)
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4
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Yoshizaki H, Kawaharada R, Tsutsumi S, Okami H, Toriumi A, Miyata E, Nakamura A. Unveiling the Threat of Maternal Advanced Glycation End Products to Fetal Muscle: Palmitoleic Acid to the Rescue. Nutrients 2024; 16:1898. [PMID: 38931253 PMCID: PMC11207069 DOI: 10.3390/nu16121898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 06/07/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
Advanced glycation end products (AGEs) accumulate in the plasma of pregnant women with hyperglycemia, potentially inducing oxidative stress and fetal developmental abnormalities. Although intrauterine hyperglycemia has been implicated in excessive fetal growth, the effects of maternal AGEs on fetal development remain unclear. We evaluated the differentiation regulators and cellular signaling in the skeletal muscles of infants born to control mothers (ICM), diabetic mothers (IDM), and diabetic mothers supplemented with either cis-palmitoleic acid (CPA) or trans-palmitoleic acid (TPA). Cell viability, reactive oxygen species levels, and myotube formation were assessed in AGE-exposed C2C12 cells to explore potential mitigation by CPA and TPA. Elevated receptors for AGE expression and decreased Akt and AMPK phosphorylation were evident in rat skeletal muscles in IDM. Maternal palmitoleic acid supplementation alleviated insulin resistance by downregulating RAGE expression and enhancing Akt phosphorylation. The exposure of the C2C12 cells to AGEs reduced cell viability and myotube formation and elevated reactive oxygen species levels, which were attenuated by CPA or TPA supplementation. This suggests that maternal hyperglycemia and plasma AGEs may contribute to skeletal muscle disorders in offspring, which are mitigated by palmitoleic acid supplementation. Hence, the maternal intake of palmitoleic acid during pregnancy may have implications for fetal health.
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Affiliation(s)
- Hitomi Yoshizaki
- Department of Bioregulatory Science (Physiology), Nippon Medical School, Tokyo 113-8602, Japan;
| | - Ritsuko Kawaharada
- Department of Health and Nutrition, Takasaki University of Health and Welfare, Takasaki 370-0033, Japan;
| | - Saki Tsutsumi
- Department of Neurophysiology & Neural Repair, Graduate School of Medicine, Gunma University, Maebashi 371-8511, Japan;
| | - Haruka Okami
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8511, Japan;
| | - Akiyo Toriumi
- Department of Public Health, Graduate School of Medicine, Gunma University, Maebashi 371-8511, Japan;
| | - Eri Miyata
- Department of Molecular Nutrition, Faculty of Human Life Sciences, Jissen Women’s University, Hino 191-8510, Japan;
| | - Akio Nakamura
- Department of Molecular Nutrition, Faculty of Human Life Sciences, Jissen Women’s University, Hino 191-8510, Japan;
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5
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Mori Y, Terasaki M, Osaka N, Fujikawa T, Yashima H, Saito T, Kataoka Y, Ohara M, Higashimoto Y, Matsui T, Yamagishi SI. DNA Aptamer Raised against Advanced Glycation End Products Improves Sperm Concentration, Motility, and Viability by Suppressing Receptors for Advanced Glycation End Product-Induced Oxidative Stress and Inflammation in the Testes of Diabetic Mice. Int J Mol Sci 2024; 25:5947. [PMID: 38892134 PMCID: PMC11172898 DOI: 10.3390/ijms25115947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 05/21/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a risk factor for male infertility, but the underlying molecular mechanisms remain unclear. Advanced glycation end products (AGEs) are pathogenic molecules for diabetic vascular complications. Here, we investigated the effects of the DNA aptamer raised against AGEs (AGE-Apt) on testicular and sperm abnormalities in a T2DM mouse model. KK-Ay (DM) and wild-type (non-DM) 4- and 7-week-old male mice were sacrificed to collect the testes and spermatozoa for immunofluorescence, RT-PCR, and histological analyses. DM and non-DM 7-week-old mice were subcutaneously infused with the AGE-Apt or control-aptamer for 6 weeks and were then sacrificed. Plasma glucose, testicular AGEs, and Rage gene expression in 4-week-old DM mice and plasma glucose, testicular AGEs, oxidative stress, and pro-inflammatory gene expressions in 7-week-old DM mice were higher than those in age-matched non-DM mice, the latter of which was associated with seminiferous tubular dilation. AGE-Apt did not affect glycemic parameters, but it inhibited seminiferous tubular dilation, reduced the number of testicular macrophages and apoptotic cells, and restored the decrease in sperm concentration, motility, and viability of 13-week-old DM mice. Our findings suggest that AGEs-Apt may improve sperm abnormality by suppressing AGE-RAGE-induced oxidative stress and inflammation in the testes of DM mice.
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Affiliation(s)
- Yusaku Mori
- Department of Medicine, Division of Diabetes, Metabolism, and Endocrinology, Anti-Glycation Research Section, Showa University Graduate School of Medicine, Shinagawa 142-8555, Tokyo, Japan
| | - Michishige Terasaki
- Department of Medicine, Division of Diabetes, Metabolism, and Endocrinology, Showa University Graduate School of Medicine, Shinagawa 142-8555, Tokyo, Japan; (M.T.); (S.-i.Y.)
| | - Naoya Osaka
- Department of Medicine, Division of Diabetes, Metabolism, and Endocrinology, Showa University Graduate School of Medicine, Shinagawa 142-8555, Tokyo, Japan; (M.T.); (S.-i.Y.)
| | - Tomoki Fujikawa
- Department of Medicine, Division of Diabetes, Metabolism, and Endocrinology, Showa University Graduate School of Medicine, Shinagawa 142-8555, Tokyo, Japan; (M.T.); (S.-i.Y.)
| | - Hironori Yashima
- Department of Medicine, Division of Diabetes, Metabolism, and Endocrinology, Showa University Graduate School of Medicine, Shinagawa 142-8555, Tokyo, Japan; (M.T.); (S.-i.Y.)
| | - Tomomi Saito
- Department of Medicine, Division of Diabetes, Metabolism, and Endocrinology, Showa University Graduate School of Medicine, Shinagawa 142-8555, Tokyo, Japan; (M.T.); (S.-i.Y.)
| | - Yurie Kataoka
- Department of Medicine, Division of Diabetes, Metabolism, and Endocrinology, Showa University Graduate School of Medicine, Shinagawa 142-8555, Tokyo, Japan; (M.T.); (S.-i.Y.)
| | - Makoto Ohara
- Department of Medicine, Division of Diabetes, Metabolism, and Endocrinology, Showa University Graduate School of Medicine, Shinagawa 142-8555, Tokyo, Japan; (M.T.); (S.-i.Y.)
| | - Yuichiro Higashimoto
- Department of Chemistry, Kurume University School of Medicine, Kurume 830-0011, Fukuoka, Japan;
| | - Takanori Matsui
- Department of Bioscience and Biotechnology, Fukui Prefectural University, Eiheiji 910-1195, Fukui, Japan
| | - Sho-ichi Yamagishi
- Department of Medicine, Division of Diabetes, Metabolism, and Endocrinology, Showa University Graduate School of Medicine, Shinagawa 142-8555, Tokyo, Japan; (M.T.); (S.-i.Y.)
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Sakai-Sakasai A, Takeda K, Suzuki H, Takeuchi M. Structures of Toxic Advanced Glycation End-Products Derived from Glyceraldehyde, A Sugar Metabolite. Biomolecules 2024; 14:202. [PMID: 38397439 PMCID: PMC10887030 DOI: 10.3390/biom14020202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/01/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Advanced glycation end-products (AGEs) have recently been implicated in the onset/progression of lifestyle-related diseases (LSRDs); therefore, the suppression of AGE-induced effects may be used in both the prevention and treatment of these diseases. Various AGEs are produced by different biological pathways in the body. Glyceraldehyde (GA) is an intermediate of glucose and fructose metabolism, and GA-derived AGEs (GA-AGEs), cytotoxic compounds that accumulate and induce damage in mammalian cells, contribute to the onset/progression of LSRDs. The following GA-AGE structures have been detected to date: triosidines, GA-derived pyridinium compounds, GA-derived pyrrolopyridinium lysine dimers, methylglyoxal-derived hydroimidazolone 1, and argpyrimidine. GA-AGEs are a key contributor to the formation of toxic AGEs (TAGE) in many cells. The extracellular leakage of TAGE affects the surrounding cells via interactions with the receptor for AGEs. Elevated serum levels of TAGE, which trigger different types of cell damage, may be used as a novel biomarker for the prevention and early diagnosis of LSRDs as well as in evaluations of treatment efficacy. This review provides an overview of the structures of GA-AGEs.
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Affiliation(s)
- Akiko Sakai-Sakasai
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, Ishikawa, Japan; (A.S.-S.); (K.T.)
- General Medicine Center, Kanazawa Medical University Hospital, 1-1 Daigaku, Uchinada, Kahoku 920-0293, Ishikawa, Japan
| | - Kenji Takeda
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, Ishikawa, Japan; (A.S.-S.); (K.T.)
- Department of Cardiology, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, Ishikawa, Japan
| | - Hirokazu Suzuki
- Department of Organic and Medicinal Chemistry, Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa 920-1181, Ishikawa, Japan;
| | - Masayoshi Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, Ishikawa, Japan; (A.S.-S.); (K.T.)
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7
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Takeda K, Sakai-Sakasai A, Kajinami K, Takeuchi M. A Novel Approach: Investigating the Intracellular Clearance Mechanism of Glyceraldehyde-Derived Advanced Glycation End-Products Using the Artificial Checkpoint Kinase 1 d270KD Mutant as a Substrate Model. Cells 2023; 12:2838. [PMID: 38132156 PMCID: PMC10741459 DOI: 10.3390/cells12242838] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/04/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
Advanced glycation end-products (AGEs), formed through glyceraldehyde (GA) as an intermediate in non-enzymatic reactions with intracellular proteins, are cytotoxic and have been implicated in the pathogenesis of various diseases. Despite their significance, the mechanisms underlying the degradation of GA-derived AGEs (GA-AGEs) remain unclear. In the present study, we found that N-terminal checkpoint kinase 1 cleavage products (CHK1-CPs) and their mimic protein, d270WT, were degraded intracellularly post-GA exposure. Notably, a kinase-dead d270WT variant (d270KD) underwent rapid GA-induced degradation, primarily via the ubiquitin-proteasome pathway. The high-molecular-weight complexes formed by the GA stimulation of d270KD were abundant in the RIPA-insoluble fraction, which also contained high levels of GA-AGEs. Immunoprecipitation experiments indicated that the high-molecular-weight complexes of d270KD were modified by GA-AGEs and that p62/SQSTM1 was one of its components. The knockdown of p62 or treatment with chloroquine reduced the amount of high-molecular-weight complexes in the RIPA-insoluble fraction, indicating its involvement in the formation of GA-AGE aggregates. The present results suggest that the ubiquitin-proteasome pathway and p62 play a role in the degradation and aggregation of intracellular GA-AGEs. This study provides novel insights into the mechanisms underlying GA-AGE metabolism and may lead to the development of novel therapeutic strategies for diseases associated with the accumulation of GA-AGEs.
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Affiliation(s)
- Kenji Takeda
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan; (A.S.-S.); (M.T.)
- Department of Cardiology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan;
| | - Akiko Sakai-Sakasai
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan; (A.S.-S.); (M.T.)
| | - Kouji Kajinami
- Department of Cardiology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan;
| | - Masayoshi Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan; (A.S.-S.); (M.T.)
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8
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Rhein S, Inderhees J, Herrmann O, Othman A, Begemann K, Fleming T, Nawroth PP, Klika KD, Isa R, König IR, Royl G, Schwaninger M. Glyoxal in hyperglycaemic ischemic stroke - a cohort study. Cardiovasc Diabetol 2023; 22:173. [PMID: 37438755 DOI: 10.1186/s12933-023-01892-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 06/17/2023] [Indexed: 07/14/2023] Open
Abstract
BACKGROUND Hyperglycaemia is frequent in acute ischemic stroke and denotes a bad prognosis, even in the absence of pre-existing diabetes. However, in clinical trials treatment of elevated glucose levels with insulin did not improve stroke outcome, suggesting that collateral effects rather than hyperglycaemia itself aggravate ischemic brain damage. As reactive glucose metabolites, glyoxal and methylglyoxal are candidates for mediating the deleterious effects of hyperglycaemia in acute stroke. METHODS In 135 patients with acute stroke, we used liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) to measure glyoxal, methylglyoxal and several of their glycated amino acid derivatives in serum. Results were verified in a second cohort of 61 stroke patients. The association of serum concentrations with standard stroke outcome scales (NIHSS, mRS) was tested. RESULTS Glucose, glyoxal, methylglyoxal, and the glyoxal-derived glycated amino acid Nδ-(5-hydro-4-imidazolon-2-yl)ornithine (G-H1) were positively correlated with a bad stroke outcome at 3 months as measured by mRS90, at least in one of the two cohorts. However, the glycated amino acids Nε-carboxyethyllysine (CEL) and in one cohort pyrraline showed an inverse correlation with stroke outcome probably reflecting lower food intake in severe stroke. Patients with a poor outcome had higher serum concentrations of glyoxal and methylglyoxal. CONCLUSIONS The glucose-derived α-dicarbonyl glyoxal and glycated amino acids arising from a reaction with glyoxal are associated with a poor outcome in ischemic stroke. Thus, lowering α-dicarbonyls or counteracting their action could be a therapeutic strategy for hyperglycaemic stroke.
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Affiliation(s)
- Sina Rhein
- Institute for Experimental and Clinical Pharmacology and Toxicology, Center for Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
- German Centre for Cardiovascular Research, (DZHK), Hamburg-Lübeck-Kiel, Germany
| | - Julica Inderhees
- Institute for Experimental and Clinical Pharmacology and Toxicology, Center for Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
- German Centre for Cardiovascular Research, (DZHK), Hamburg-Lübeck-Kiel, Germany
- Bioanalytic Core Facility, Center for Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Oliver Herrmann
- Department of Neurology, University of Heidelberg, Heidelberg, Germany
| | - Alaa Othman
- Bioanalytic Core Facility, Center for Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Kimberly Begemann
- Institute for Experimental and Clinical Pharmacology and Toxicology, Center for Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Thomas Fleming
- Department of Internal Medicine, University of Heidelberg, Heidelberg, Germany
- German Research Centre for Diabetes Research, Düsseldorf, Germany
| | - Peter P Nawroth
- Department of Internal Medicine, University of Heidelberg, Heidelberg, Germany
| | - Karel D Klika
- Molecular Structure Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Rakad Isa
- Department of Neurology, Center for Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Inke R König
- German Centre for Cardiovascular Research, (DZHK), Hamburg-Lübeck-Kiel, Germany
- Institute of Medical Biometry and Statistics, University of Lübeck, Lübeck, Germany
| | - Georg Royl
- Department of Neurology, Center for Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Markus Schwaninger
- Institute for Experimental and Clinical Pharmacology and Toxicology, Center for Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany.
- German Centre for Cardiovascular Research, (DZHK), Hamburg-Lübeck-Kiel, Germany.
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Hiramoto K, Imai M, Tanaka S, Ooi K. Dementia Is Induced via the AGEs/Iba1/iNOS Pathway in Aged KK-Ay/Tajcl Mice. Life (Basel) 2023; 13:1540. [PMID: 37511915 PMCID: PMC10381697 DOI: 10.3390/life13071540] [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: 06/14/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
The onset and exacerbation of dementia have been observed in elderly patients with type 2 diabetes. However, the underlying mechanism remains unclear. In this study, we investigated the effects of aging on the cognitive function in a mouse model of type 2 diabetes. Pathogen-free KK-Ay/TaJcl mice were used in this study. The cognitive abilities and memory declined in the mice and worsened in the 50-week-olds. The levels of advanced glycation end products (AGEs), receptor for AGE (RAGE), and Iba1 in the hippocampus were increased in the mice compared to those in the control mice. Hippocampal levels of CC-chemokine receptor 7 and inducible nitric oxide synthase, which are from M1-type macrophages that shift from microglia, were higher in KK-Ay/TaJcl mice than in control mice. Tumor necrosis factor (TNF)-α and nitric oxide (NO) levels secreted by M1-type macrophages were similarly elevated in the mice and were even higher at the age of 50 weeks. NO levels were markedly elevated in the 50-week-old mice. In contrast, differentiation of CD163 and arginase-1 did not change in both mouse types. Memory and learning declined with age in diabetic mice, and the AGEs/RAGE/M1-type macrophage/NO and TNF-α pathways played an important role in exacerbating memory and learning in those mice.
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Affiliation(s)
- Keiichi Hiramoto
- Department of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka 513-8670, Japan
| | - Masashi Imai
- Department of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka 513-8670, Japan
| | - Shota Tanaka
- Department of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka 513-8670, Japan
| | - Kazuya Ooi
- Department of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka 513-8670, Japan
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10
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Yonamine CY, Passarelli M, Suemoto CK, Pasqualucci CA, Jacob-Filho W, Alves VAF, Marie SKN, Correa-Giannella ML, Britto LR, Machado UF. Postmortem Brains from Subjects with Diabetes Mellitus Display Reduced GLUT4 Expression and Soma Area in Hippocampal Neurons: Potential Involvement of Inflammation. Cells 2023; 12:cells12091250. [PMID: 37174649 PMCID: PMC10177173 DOI: 10.3390/cells12091250] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/13/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
Diabetes mellitus (DM) is an important risk factor for dementia, which is a common neurodegenerative disorder. DM is known to activate inflammation, oxidative stress, and advanced glycation end products (AGEs) generation, all capable of inducing neuronal dysfunctions, thus participating in the neurodegeneration progress. In that process, disturbed neuronal glucose supply plays a key role, which in hippocampal neurons is controlled by the insulin-sensitive glucose transporter type 4 (GLUT4). We investigated the expression of GLUT4, nuclear factor NF-kappa B subunit p65 [NFKB (p65)], carboxymethyllysine and synapsin1 (immunohistochemistry), and soma area in human postmortem hippocampal samples from control, obese, and obese+DM subjects (41 subjects). Moreover, in human SH-SY5Y neurons, tumor necrosis factor (TNF) and glycated albumin (GA) effects were investigated in GLUT4, synapsin-1 (SYN1), tyrosine hydroxylase (TH), synaptophysin (SYP) proteins, and respective genes; NFKB binding activity in the SLC2A4 promoter; effects of increased histone acetylation grade by histone deacetylase 3 (HDAC3) inhibition. Hippocampal neurons (CA4 area) of obese+DM subjects displayed reduced GLUT4 expression and neuronal soma area, associated with increased expression of NFKB (p65). Challenges with TNF and GA decreased the SLC2A4/GLUT4 expression in SH-SY5Y neurons. TNF decreased SYN1, TH, and SYP mRNAs and respective proteins, and increased NFKB binding activity in the SLC2A4 promoter. Inhibition of HDAC3 increased the SLC2A4 expression and the total neuronal content of CRE-binding proteins (CREB/ICER), and also counterbalanced the repressor effect of TNF upon these parameters. This study revealed reduced postmortem human hippocampal GLUT4 content and neuronal soma area accompanied by increased proinflammatory activity in the brains of DM subjects. In isolated human neurons, inflammatory activation by TNF reduced not only the SLC2A4/GLUT4 expression but also the expression of some genes related to neuronal function (SYN1, TH, SYP). These effects may be related to epigenetic regulations (H3Kac and H4Kac status) since they can be counterbalanced by inhibiting HDAC3. These results uncover the improvement in GLUT4 expression and/or the inhibition of HDAC3 as promising therapeutic targets to fight DM-related neurodegeneration.
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Affiliation(s)
- Caio Yogi Yonamine
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Marisa Passarelli
- Laboratório de Lipides (LIM-10) do HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo 01246-000, Brazil
- Programa de Pos-Graduação em Medicina, Universidade Nove de Julho (UNINOVE), São Paulo 01525-000, Brazil
| | - Claudia Kimie Suemoto
- Divisao de Geriatria, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo 01246-000, Brazil
| | | | - Wilson Jacob-Filho
- Divisao de Geriatria, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo 01246-000, Brazil
| | - Venâncio Avancini Ferreira Alves
- Laboratório de Investigação Médica em Patologia Hepática, (LIM14) do Hospital das Clínicas (HCFMUSP), Faculdade de Medicina, Universidade de São Paulo, São Paulo 01246-000, Brazil
| | | | - Maria Lucia Correa-Giannella
- Laboratorio de Carboidratos e Radioimunoensaio (LIM-18) do Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo 01246-000, Brazil
| | - Luiz Roberto Britto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
| | - Ubiratan Fabres Machado
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
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11
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Sakasai-Sakai A, Takeda K, Takeuchi M. Involvement of Intracellular TAGE and the TAGE-RAGE-ROS Axis in the Onset and Progression of NAFLD/NASH. Antioxidants (Basel) 2023; 12:antiox12030748. [PMID: 36978995 PMCID: PMC10045097 DOI: 10.3390/antiox12030748] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
The repeated excessive intake of sugar, a factor that contributes to the onset of nonalcoholic fatty liver disease (NAFLD) and its progression to the chronic form of nonalcoholic steatohepatitis (NASH), markedly increases the hepatocyte content of glyceraldehyde (GA), a glucose/fructose metabolic intermediate. Toxic advanced glycation end-products (toxic AGEs, TAGE) are synthesized by cross-linking reactions between the aldehyde group of GA and the amino group of proteins, and their accumulation has been implicated in the development of NAFLD/NASH and hepatocellular carcinoma (HCC). Our previous findings not only showed that hepatocyte disorders were induced by the intracellular accumulation of TAGE, but they also indicated that extracellular leakage resulted in elevated TAGE concentrations in circulating fluids. Interactions between extracellular TAGE and receptor for AGEs (RAGE) affect intracellular signaling and reactive oxygen species (ROS) production, which may, in turn, contribute to the pathological changes observed in NAFLD/NASH. RAGE plays a role in the effects of the extracellular leakage of TAGE on the surrounding cells, which ultimately promote the onset and progression of NAFLD/NASH. This review describes the relationships between intracellular TAGE levels and hepatocyte and hepatic stellate cell (HSC) damage as well as the TAGE-RAGE-ROS axis in hepatocytes, HSC, and HCC cells. The "TAGE theory" will provide novel insights for future research on NAFLD/NASH.
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Affiliation(s)
- Akiko Sakasai-Sakai
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa 920-0293, Japan
| | - Kenji Takeda
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa 920-0293, Japan
| | - Masayoshi Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa 920-0293, Japan
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12
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Kang J, Jeong YJ, Ha SK, Lee HH, Lee KW. Glyoxal-derived advanced glycation end-products, N ε-carboxymethyl-lysine, and glyoxal-derived lysine dimer induce apoptosis-related gene expression in hepatocytes. Mol Biol Rep 2023; 50:2511-2520. [PMID: 36609749 DOI: 10.1007/s11033-022-08130-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 11/16/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND Advanced glycation end-products (AGEs) are proteins or lipids that have been glycated nonenzymatically by reducing sugars and their derivatives such as methylglyoxal. AGEs are known to cause inflammation, oxidative stress, and diseases in the human body. The toxic effects of AGEs and their structures on the origin of the protein being modified have not been well studied. METHODS AND RESULTS Five different types of AGEs: AGE1 (glucose-derived), AGE2 (glyceraldehyde-derived), AGE3 (glycolaldehyde-derived), AGE4 (methylglyoxal-derived), and AGE5 (glyoxal-derived); were used to examine the effect of AGEs on HepG2 cells. AGE2 through 5 increase the production of reactive oxygen species (ROS) in liver cells, an initiating factor for apoptosis. At the mRNA and protein levels, AGE5 treatment showed the greatest increase in expression of apoptosis-related factors such as Bax, p53, and Caspase 3. Quantitative analysis revealed that Nε-carboxymethyl-lysine (CML) and glyoxal-lysine dimer (GOLD) were the important types of AGE5. The ROS generation and the expression of apoptotic factors both increased when cells were treated with CML and GOLD. CONCLUSION These findings suggest that AGE5 treatment activates the apoptosis-related gene expression in hapatocytes, with CML and GOLD as potential major AGE compounds.
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Affiliation(s)
- Jison Kang
- Department of Biotechnology, College of Life science & Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, 02841, Seoul, Republic of Korea
| | - Yu-Jin Jeong
- Department of Biotechnology, College of Life science & Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, 02841, Seoul, Republic of Korea
| | - Sang Keun Ha
- Research Division of Food Functionality, Korea Food Research Institute, Wanju-gun, 55365, Jeollabuk-do, Republic of Korea
| | - Hyun Hee Lee
- Research Division of Food Functionality, Korea Food Research Institute, Wanju-gun, 55365, Jeollabuk-do, Republic of Korea
| | - Kwang-Won Lee
- Department of Biotechnology, College of Life science & Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, 02841, Seoul, Republic of Korea. .,Department of Food Bioscience and Technology, College of Life science & Biotechnology, Korea University, 02841, Seoul, Republic of Korea.
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13
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Advanced Glycation End-Products and Diabetic Neuropathy of the Retina. Int J Mol Sci 2023; 24:ijms24032927. [PMID: 36769249 PMCID: PMC9917392 DOI: 10.3390/ijms24032927] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 01/29/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Diabetic retinopathy is a tissue-specific neurovascular impairment of the retina in patients with both type 1 and type 2 diabetes. Several pathological factors are involved in the progressive impairment of the interdependence between cells that consist of the neurovascular units (NVUs). The advanced glycation end-products (AGEs) are one of the major pathological factors that cause the impairments of neurovascular coupling in diabetic retinopathy. Although the exact mechanisms for the toxicities of the AGEs in diabetic retinopathy have not been definitively determined, the AGE-receptor of the AGE (RAGE) axis, production of reactive oxygen species, inflammatory reactions, and the activation of the cell death pathways are associated with the impairment of the NVUs in diabetic retinopathy. More specifically, neuronal cell death is an irreversible change that is directly associated with vision reduction in diabetic patients. Thus, neuroprotective therapies must be established for diabetic retinopathy. The AGEs are one of the therapeutic targets to examine to ameliorate the pathological changes in the NVUs in diabetic retinopathy. This review focuses on the basic and pathological findings of AGE-induced neurovascular abnormalities and the potential therapeutic approaches, including the use of anti-glycated drugs to protect the AGE-induced impairments of the NVUs in diabetic retinopathy.
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14
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Ooi H, Koriyama Y. Toxic Advanced Glycation End-Products-Dependent Alzheimer's Disease- Like Alternation in the Microtubule System. Curr Alzheimer Res 2023; 20:677-681. [PMID: 38357957 DOI: 10.2174/0115672050288723240213053342] [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] [Received: 10/22/2023] [Revised: 01/31/2024] [Accepted: 01/31/2024] [Indexed: 02/16/2024]
Abstract
Type 2 diabetes mellitus (T2DM) is a risk factor for Alzheimer's Disease (AD). However, the detailed mechanism underlying T2DM-related AD remains unknown. In DM, many types of advanced glycation end-products (AGEs) are formed and accumulated. In our previous study, we demonstrated that Glyceraldehyde (GA)-derived Toxic Advanced Glycation End-products (Toxic AGEs, TAGE) strongly showed cytotoxicity against neurons and induced similar alterations to those observed in AD. Further, GA induced dysfunctional neurite outgrowth via TAGE-β-- tubulin aggregation, which resulted in the TAGE-dependent abnormal aggregation of β-tubulin and tau phosphorylation. Herein, we provide a perspective on the possibility that T2DM increases the probability of AD onset and accelerates its progression.
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Affiliation(s)
- Hayahide Ooi
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka 513-8670, Japan
| | - Yoshiki Koriyama
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka 513-8670, Japan
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15
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Koerich S, Parreira GM, de Almeida DL, Vieira RP, de Oliveira ACP. Receptors for Advanced Glycation End Products (RAGE): Promising Targets Aiming at the Treatment of Neurodegenerative Conditions. Curr Neuropharmacol 2023; 21:219-234. [PMID: 36154605 PMCID: PMC10190138 DOI: 10.2174/1570159x20666220922153903] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/03/2022] [Accepted: 07/18/2022] [Indexed: 11/22/2022] Open
Abstract
Advanced glycation end products (AGEs) are compounds formed after the non-enzymatic addition of reducing sugars to lipids, proteins, and nucleic acids. They are associated with the development of various clinical complications observed in diabetes and cardiovascular diseases, such as retinopathy, nephropathy, diabetic neuropathy, and others. In addition, compelling evidence indicates that these molecules participate in the progression of neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis. Multiple cellular and molecular alterations triggered by AGEs that could alter homeostasis have been identified. One of the main targets for AGE signaling is the receptor for advanced glycation end-products (RAGE). Importantly, this receptor is the target of not only AGEs, but also amyloid β peptides, HMGB1 (high-mobility group box-1), members of the S100 protein family, and glycosaminoglycans. The activation of this receptor induces intracellular signaling cascades that are involved in pathological processes and cell death. Therefore, RAGE represents a key target for pharmacological interventions in neurodegenerative diseases. This review will discuss the various effects of AGEs and RAGE activation in the pathophysiology of neurodegenerative diseases, as well as the currently available pharmacological tools and promising drug candidates.
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Affiliation(s)
- Suélyn Koerich
- Department of Pharmacology, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - Gabriela Machado Parreira
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | | | - Rafael Pinto Vieira
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
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16
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Kang Q, Dai H, Jiang S, Yu L. Advanced glycation end products in diabetic retinopathy and phytochemical therapy. Front Nutr 2022; 9:1037186. [PMID: 36466410 PMCID: PMC9716030 DOI: 10.3389/fnut.2022.1037186] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/31/2022] [Indexed: 10/12/2023] Open
Abstract
Advanced glycation end products (AGEs) are generated by the nonenzymatic glycation of proteins or lipids. Diabetic retinopathy (DR) is one common complication in patients with diabetes. The accumulation of AGEs in retinal cells is strongly associated with the development of DR. AGEs can induce the breakdown of redox balance and then cause oxidative stress in retinal cells, exerting cytopathic effects in the progression of DR. The interaction between AGEs and the receptor for AGE (RAGE) is involved in multiple cellular pathological alterations in the retina. This review is to elucidate the pathogenetic roles of AGEs in the progression of DR, including metabolic abnormalities, lipid peroxidation, structural and functional alterations, and neurodegeneration. In addition, disorders associated with AGEs can be used as potential therapeutic targets to explore effective and safe treatments for DR. In this review, we have also introduced antioxidant phytochemicals as potential therapeutic strategies for the treatment of DR.
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Affiliation(s)
- Qingzheng Kang
- Department of Hematology and Oncology, International Cancer Center, Shenzhen Key Laboratory, Shenzhen University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
| | - Haiyu Dai
- School of Medicine, Shenzhen University, Shenzhen, China
| | - Suwei Jiang
- School of Medicine, Shenzhen University, Shenzhen, China
| | - Li Yu
- Department of Hematology and Oncology, International Cancer Center, Shenzhen Key Laboratory, Shenzhen University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
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17
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Song Y, Du Y, An Y, Zheng J, Lu Y. A systematic review and meta-analysis of cognitive and behavioral tests in rodents treated with different doses of D-ribose. Front Aging Neurosci 2022; 14:1036315. [PMID: 36438006 PMCID: PMC9681890 DOI: 10.3389/fnagi.2022.1036315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 10/17/2022] [Indexed: 05/27/2024] Open
Abstract
Background D-ribose is an aldehyde sugar and a necessary component of all living cells. Numerous reports have focused on D-ribose intervention in animal models to assess the negative effects of D-ribose on cognition. However, the results across these studies are inconsistent and the doses and actual effects of D-ribose on cognition remain unclear. This systematic review aimed to evaluate the effect of D-ribose on cognition in rodents. Methods The articles from PubMed, Embase, Sciverse Scopus, Web of Science, the Chinese National Knowledge Infrastructure, SinoMed, Wanfang, and Cqvip databases were screened. The results from the abstract on cognitive-related behavioral tests and biochemical markers from the included articles were extracted and the reporting quality was assessed. Results A total of eight trials involving 289 rodents met the eligibility criteria, and both low- and high-dose groups were included. Meta-analyses of these studies showed that D-ribose could cause a significant decrease in the number of platform crossings (standardized mean difference [SMD]: -0.80; 95% CI: -1.14, -0.46; p < 0.00001), percentage of distance traversed in the target quadrant (SMD: -1.20; 95% CI: -1.47, -0.92; p < 0.00001), percentage of time spent in the target quadrant (SMD: -0.93; 95% CI: -1.18, -0.68; p < 0.00001), and prolonged escape latency (SMD: 0.41; 95% CI: 0.16, 0.65; p = 0.001) in the Morris water maze test. Moreover, D-ribose intervention increased the levels of advanced glycation end products (AGEs) in the brain (SMD: 0.49; 95% CI: 0.34, 0.63; p < 0.00001) and blood (SMD: 0.50; 95% CI: 0.08, 0.92; p = 0.02). Subsequently, subgroup analysis for the dose of D-ribose intervention revealed that high doses injured cognitive function more significantly than low D-ribose doses. Conclusion D-ribose treatment caused cognitive impairment, and cognition deteriorated with increasing dose. Furthermore, the increase in AGEs in the blood and brain confirmed that D-ribose may be involved in cognitive impairment through non-enzymatic glycosylation resulting in the generation of AGEs. These findings provide a new research idea for unveiling basic mechanisms and prospective therapeutic targets for the prevention and treatment of patients with cognitive impairment.
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Affiliation(s)
- Ying Song
- School of Nursing, Peking University, Beijing, China
| | - Yage Du
- School of Nursing, Peking University, Beijing, China
| | - Yu An
- Department of Endocrinology, Beijing Chaoyang Hospital, Beijing, China
| | - Jie Zheng
- School of Nursing, Peking University, Beijing, China
| | - Yanhui Lu
- School of Nursing, Peking University, Beijing, China
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18
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Endogenous Synthesis of Tetrahydroisoquinoline Derivatives from Dietary Factors: Neurotoxicity Assessment on a 3D Neurosphere Culture. Molecules 2022; 27:molecules27217443. [PMID: 36364268 PMCID: PMC9656915 DOI: 10.3390/molecules27217443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/19/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022] Open
Abstract
Tetrahydroisoquinoline (THIQ) alkaloids and their derivatives have a structural similarity to 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), a well-known neurotoxin. THIQs seem to present a broad range of actions in the brain, critically dependent on their catechol moieties and metabolism. These properties make it reasonable to assume that an acute or chronic exposure to some THIQs might lead to neurodegenerative diseases including essential tremor (ET). We developed a method to search for precursor carbonyl compounds produced during the Maillard reaction in overcooked meats to study their reactivity with endogenous amines and identify the reaction products. Then, we predicted in silico their pharmacokinetic and toxicological properties toward the central nervous system. Finally, their possible neurological effects on a novel in vitro 3D neurosphere model were assessed. The obtained data indicate that meat is an alkaloid precursor, and we identified the alkaloid 1-benzyl-1,2,3,4-tetrahydroisoquinoline-6,7-diol (1-benz-6,7-diol THIQ) as the condensation product of phenylacetaldehyde with dopamine; in silico study of 1-benz-6,7-diol-THIQ reveals modulation of dopamine receptor D1 and D2; and in vitro study of 1-benz-6,7-diol-THIQ for cytotoxicity and oxidative stress induction does not show any difference after 24 h contact for all tested concentrations. To conclude, our in vitro data do not support an eventual neurotoxic effect for 1-benz-6,7-diol-THIQ.
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A new K +channel-independent mechanism is involved in the antioxidant effect of XE-991 in an in vitro model of glucose metabolism impairment: implications for Alzheimer's disease. Cell Death Dis 2022; 8:391. [PMID: 36127342 PMCID: PMC9489689 DOI: 10.1038/s41420-022-01187-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 09/06/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022]
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disorder that represents the first cause of dementia. Although there has been significant progress in AD research, the actual mechanisms underlying this pathology remain largely unknown. There is increasing evidence that oxidative stress, metabolic alterations, and mitochondrial dysfunction are key players in the development and worsening of AD. As a result, in the past few years, remarkable attempts have been made to develop neuroprotective strategies against the impairment of mitochondrial dynamics and cell redox status. In the present study, we reveal a novel antioxidant K+ channel-independent effect of the M-current inhibitor XE-991 in SH-SY5Y cells differentiated with retinoic acid (RA) and primary rat cortical neurons exposed to the glycolysis inhibitor glyceraldehyde (GA). This experimental approach aimed to create a condition of hypometabolism accompanied by mitochondrial dysfunction and redox imbalance, as frequently observed in the beginning stage of the disease. We found that XE-991 exerted a neuroprotective action most likely through the resumption of superoxide dismutase (SOD) activity, which was significantly compromised during GA challenge. We also observed that the enhancement of SOD activity was accompanied by a sequence of positive effects; these included the reduction in basal Ca2+ levels within cytoplasmic and mitochondrial compartments, the decrease in mitochondrial reactive oxygen species (ROS) production, the modulation of AMPK/mTOR pathway, the recovery of ΔΨm collapse, the increase in the intracellular ATP content and the decrease in amyloid-β (Aβ) and hyperphosphorylated form of tau protein (pTau) levels. Collectively, our study reveals an off-target antioxidant effect of XE-991 and paves the way toward the further evaluation of new therapeutic uses of already existing molecules to accelerate the process of developing an effective therapy to counteract AD.
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Piccirillo S, Magi S, Preziuso A, Serfilippi T, Cerqueni G, Orciani M, Amoroso S, Lariccia V. The Hidden Notes of Redox Balance in Neurodegenerative Diseases. Antioxidants (Basel) 2022; 11:1456. [PMID: 35892658 PMCID: PMC9331713 DOI: 10.3390/antiox11081456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/15/2022] [Accepted: 07/21/2022] [Indexed: 11/16/2022] Open
Abstract
Reactive oxygen species (ROS) are versatile molecules that, even if produced in the background of many biological processes and responses, possess pleiotropic roles categorized in two interactive yet opposite domains. In particular, ROS can either function as signaling molecules that shape physiological cell functions, or act as deleterious end products of unbalanced redox reactions. Indeed, cellular redox status needs to be tightly regulated to ensure proper cellular functioning, and either excessive ROS accumulation or the dysfunction of antioxidant systems can perturb the redox homeostasis, leading to supraphysiological concentrations of ROS and potentially harmful outcomes. Therefore, whether ROS would act as signaling molecules or as detrimental factors strictly relies on a dynamic equilibrium between free radical production and scavenging resources. Of notice, the mammalian brain is particularly vulnerable to ROS-mediated toxicity, because it possesses relatively poor antioxidant defenses to cope with the redox burden imposed by the elevated oxygen consumption rate and metabolic activity. Many features of neurodegenerative diseases can in fact be traced back to causes of oxidative stress, which may influence both the onset and progression of brain demise. This review focuses on the description of the dual roles of ROS as double-edge sword in both physiological and pathological settings, with reference to Alzheimer's and Parkinson's diseases.
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Affiliation(s)
- Silvia Piccirillo
- Department of Biomedical Sciences and Public Health, School of Medicine, University Politecnica delle Marche, Via Tronto 10/A, 60126 Ancona, Italy; (S.P.); (A.P.); (T.S.); (G.C.); (S.A.); (V.L.)
| | - Simona Magi
- Department of Biomedical Sciences and Public Health, School of Medicine, University Politecnica delle Marche, Via Tronto 10/A, 60126 Ancona, Italy; (S.P.); (A.P.); (T.S.); (G.C.); (S.A.); (V.L.)
| | - Alessandra Preziuso
- Department of Biomedical Sciences and Public Health, School of Medicine, University Politecnica delle Marche, Via Tronto 10/A, 60126 Ancona, Italy; (S.P.); (A.P.); (T.S.); (G.C.); (S.A.); (V.L.)
| | - Tiziano Serfilippi
- Department of Biomedical Sciences and Public Health, School of Medicine, University Politecnica delle Marche, Via Tronto 10/A, 60126 Ancona, Italy; (S.P.); (A.P.); (T.S.); (G.C.); (S.A.); (V.L.)
| | - Giorgia Cerqueni
- Department of Biomedical Sciences and Public Health, School of Medicine, University Politecnica delle Marche, Via Tronto 10/A, 60126 Ancona, Italy; (S.P.); (A.P.); (T.S.); (G.C.); (S.A.); (V.L.)
| | - Monia Orciani
- Department of Clinical and Molecular Sciences-Histology, School of Medicine, University Politecnica delle Marche, Via Tronto 10/A, 60126 Ancona, Italy;
| | - Salvatore Amoroso
- Department of Biomedical Sciences and Public Health, School of Medicine, University Politecnica delle Marche, Via Tronto 10/A, 60126 Ancona, Italy; (S.P.); (A.P.); (T.S.); (G.C.); (S.A.); (V.L.)
| | - Vincenzo Lariccia
- Department of Biomedical Sciences and Public Health, School of Medicine, University Politecnica delle Marche, Via Tronto 10/A, 60126 Ancona, Italy; (S.P.); (A.P.); (T.S.); (G.C.); (S.A.); (V.L.)
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21
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Takeuchi M, Sakasai-Sakai A, Takata T, Takino JI, Koriyama Y. Effects of Toxic AGEs (TAGE) on Human Health. Cells 2022; 11:2178. [PMID: 35883620 PMCID: PMC9317028 DOI: 10.3390/cells11142178] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/06/2022] [Accepted: 07/10/2022] [Indexed: 02/05/2023] Open
Abstract
The habitual and excessive consumption of sugar (i.e., sucrose and high-fructose corn syrup, HFCS) is associated with the onset and progression of lifestyle-related diseases (LSRD). Advanced glycation end-products (AGEs) have recently been the focus of research on the factors contributing to LSRD. Approaches that inhibit the effects of AGEs may be used to prevent and/or treat LSRD; however, since the structures of AGEs vary depending on the type of reducing sugars or carbonyl compounds to which they respond, difficulties are associated with verifying that AGEs are an etiological factor. Cytotoxic AGEs derived from glyceraldehyde, a triose intermediate in the metabolism of glucose and fructose, have been implicated in LSRD and are called toxic AGEs (TAGE). A dietary imbalance (the habitual and excessive intake of sucrose, HFCS, or dietary AGEs) promotes the generation/accumulation of TAGE in vivo. Elevated circulating levels of TAGE have been detected in non-diabetics and diabetics, indicating a strong relationship between the generation/accumulation of TAGE in vivo and the onset and progression of LSRD. We herein outline current findings on "TAGE as a new target" for human health.
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Affiliation(s)
- Masayoshi Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku 920-0293, Ishikawa, Japan;
| | - Akiko Sakasai-Sakai
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku 920-0293, Ishikawa, Japan;
| | - Takanobu Takata
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku 920-0293, Ishikawa, Japan;
| | - Jun-ichi Takino
- Department of Biochemistry, Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure 737-0112, Hiroshima, Japan;
| | - Yoshiki Koriyama
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka 513-8670, Mie, Japan;
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22
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Ooi H, Nasu R, Furukawa A, Takeuchi M, Koriyama Y. Pyridoxamine and Aminoguanidine Attenuate the Abnormal Aggregation of β-Tubulin and Suppression of Neurite Outgrowth by Glyceraldehyde-Derived Toxic Advanced Glycation End-Products. Front Pharmacol 2022; 13:921611. [PMID: 35721214 PMCID: PMC9204210 DOI: 10.3389/fphar.2022.921611] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/13/2022] [Indexed: 01/03/2023] Open
Abstract
Diabetes mellitus (DM) has been identified as a risk factor for the onset and progression of Alzheimer’s disease (AD). In our previous study, we demonstrated that glyceraldehyde (GA)-derived toxic advanced glycation end-products (toxic AGEs, TAGE) induced similar alterations to those observed in AD. GA induced dysfunctional neurite outgrowth via TAGE-β-tubulin aggregation, which resulted in the TAGE-dependent abnormal aggregation of β-tubulin and tau phosphorylation in human neuroblastoma SH-SY5Y cells. However, the effects of inhibitors of AGE formation on dysfunctional neurite outgrowth caused by GA-induced abnormalities in the aggregation of β-tubulin and tau phosphorylation remain unknown. Aminoguanidine (AG), an AGE inhibitor, and pyridoxamine (PM), a natural form of vitamin B6 (VB6), are effective AGE inhibitors. Therefore, the present study investigated whether AG or PM ameliorate TAGE-β-tubulin aggregation and the suppression of neurite outgrowth by GA. The results obtained showed that AG and PM inhibited the formation of TAGE-β-tubulin, mitigated the GA-induced suppression of neurite outgrowth, and reduced GA-mediated increases in tau phosphorylation levels. Collectively, these results suggest the potential of AG and PM to prevent the DM-associated onset and progression of AD.
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Affiliation(s)
- Hayahide Ooi
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Japan
| | - Ryuto Nasu
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Japan
| | - Ayako Furukawa
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Japan
| | - Masayoshi Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Uchinada-machi, Japan
| | - Yoshiki Koriyama
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Japan
- *Correspondence: Yoshiki Koriyama,
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23
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Chen Y, Coorey NJ, Zhang M, Zeng S, Madigan MC, Zhang X, Gillies MC, Zhu L, Zhang T. Metabolism Dysregulation in Retinal Diseases and Related Therapies. Antioxidants (Basel) 2022; 11:antiox11050942. [PMID: 35624805 PMCID: PMC9137684 DOI: 10.3390/antiox11050942] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 02/08/2023] Open
Abstract
The human retina, which is part of the central nervous system, has exceptionally high energy demands that requires an efficient metabolism of glucose, lipids, and amino acids. Dysregulation of retinal metabolism disrupts local energy supply and redox balance, contributing to the pathogenesis of diverse retinal diseases, including age-related macular degeneration, diabetic retinopathy, inherited retinal degenerations, and Macular Telangiectasia. A better understanding of the contribution of dysregulated metabolism to retinal diseases may provide better therapeutic targets than we currently have.
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Affiliation(s)
- Yingying Chen
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu 610017, China;
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2000, Australia; (S.Z.); (M.C.M.); (M.C.G.); (L.Z.)
| | | | - Meixia Zhang
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu 610017, China;
- Macular Disease Research Laboratory, Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu 610017, China
- Correspondence: (M.Z.); (T.Z.)
| | - Shaoxue Zeng
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2000, Australia; (S.Z.); (M.C.M.); (M.C.G.); (L.Z.)
| | - Michele C. Madigan
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2000, Australia; (S.Z.); (M.C.M.); (M.C.G.); (L.Z.)
- School of Optometry and Vision Science, University of New South Wales (UNSW), Sydney, NSW 2052, Australia
| | - Xinyuan Zhang
- Department of Ocular Fundus Diseases, Beijing Tongren Eye Centre, Tongren Hospital, Capital Medical University, Beijing 100073, China;
- Beijing Retinal and Choroidal Vascular Study Group, Beijing 100073, China
| | - Mark C. Gillies
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2000, Australia; (S.Z.); (M.C.M.); (M.C.G.); (L.Z.)
| | - Ling Zhu
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2000, Australia; (S.Z.); (M.C.M.); (M.C.G.); (L.Z.)
| | - Ting Zhang
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2000, Australia; (S.Z.); (M.C.M.); (M.C.G.); (L.Z.)
- Correspondence: (M.Z.); (T.Z.)
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24
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Shandilya S, Kumar S, Kumar Jha N, Kumar Kesari K, Ruokolainen J. Interplay of gut microbiota and oxidative stress: Perspective on neurodegeneration and neuroprotection. J Adv Res 2022; 38:223-244. [PMID: 35572407 PMCID: PMC9091761 DOI: 10.1016/j.jare.2021.09.005] [Citation(s) in RCA: 94] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 07/05/2021] [Accepted: 09/14/2021] [Indexed: 12/12/2022] Open
Abstract
Background Recent research on the implications of gut microbiota on brain functions has helped to gather important information on the relationship between them. Pathogenesis of neurological disorders is found to be associated with dysregulation of gut-brain axis. Some gut bacteria metabolites are found to be directly associated with the increase in reactive oxygen species levels, one of the most important risk factors of neurodegeneration. Besides their morbid association, gut bacteria metabolites are also found to play a significant role in reducing the onset of these life-threatening brain disorders. Aim of Review Studies done in the recent past raises two most important link between gut microbiota and the brain: "gut microbiota-oxidative stress-neurodegeneration" and gut microbiota-antioxidant-neuroprotection. This review aims to gives a deep insight to our readers, of the collective studies done, focusing on the gut microbiota mediated oxidative stress involved in neurodegeneration along with a focus on those studies showing the involvement of gut microbiota and their metabolites in neuroprotection. Key Scientific Concepts of Review This review is focused on three main key concepts. Firstly, the mounting evidences from clinical and preclinical arenas shows the influence of gut microbiota mediated oxidative stress resulting in dysfunctional neurological processes. Therefore, we describe the potential role of gut microbiota influencing the vulnerability of brain to oxidative stress, and a budding causative in Alzheimer's and Parkinson's disease. Secondly, contributing roles of gut microbiota has been observed in attenuating oxidative stress and inflammation via its own metabolites or by producing secondary metabolites and, also modulation in gut microbiota population with antioxidative and anti-inflammatory probiotics have shown promising neuro resilience. Thirdly, high throughput in silico tools and databases also gives a correlation of gut microbiome, their metabolites and brain health, thus providing fascinating perspective and promising new avenues for therapeutic options.
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Affiliation(s)
- Shruti Shandilya
- Department of Applied Physics, School of Science, Aalto University, Espoo, Finland
| | - Sandeep Kumar
- Department of Biochemistry, International Institute of Veterinary Education and Research, Haryana, India
- Clinical Science, Targovax Oy, Saukonpaadenranta 2, Helsinki 00180, Finland
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering and Technology (SET), Sharda University, Plot no. 32–34, Knowledge Park III, Greater Noida 201310, India
| | | | - Janne Ruokolainen
- Department of Applied Physics, School of Science, Aalto University, Espoo, Finland
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The Association between Accumulation of Toxic Advanced Glycation End-Products and Cytotoxic Effect in MC3T3-E1 Cells. Nutrients 2022; 14:nu14050990. [PMID: 35267965 PMCID: PMC8912344 DOI: 10.3390/nu14050990] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/22/2022] [Accepted: 02/24/2022] [Indexed: 02/01/2023] Open
Abstract
In diabetic patients, the metabolism of excess glucose increases the toxicity of the aldehyde group of sugar. Aldehydes, including glyceraldehyde (GA), react with intracellular proteins to form advanced glycation end-products (AGEs), which deteriorate bone quality and cause osteoporosis. One of the causes of osteoporotic fractures is impaired osteoblast osteogenesis; however, the cytotoxic effects of aldehydes and the subsequent formation of AGEs in osteoblasts have not yet been examined in detail. Therefore, the present study investigated the cytotoxicity of intracellular GA and GA-derived AGEs, named toxic AGEs (TAGE), in the mouse osteoblastic cell line MC3T3-E1. Treatment with GA induced MC3T3-E1 cell death, which was accompanied by TAGE modifications in several intracellular proteins. Furthermore, the downregulated expression of Runx2, a transcription factor essential for osteoblast differentiation, and collagen correlated with the accumulation of TAGE. The GA treatment also reduced the normal protein levels of collagen in cells, suggesting that collagen may be modified by TAGE and form an abnormal structure. Collectively, the present results show for the first time that GA and TAGE exert cytotoxic effects in osteoblasts, inhibit osteoblastic differentiation, and decrease the amount of normal collagen. The suppression of GA production and associated accumulation of TAGE has potential as a novel therapeutic target for osteoporosis under hyperglycemic conditions.
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26
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In Vitro Methodologies to Study the Role of Advanced Glycation End Products (AGEs) in Neurodegeneration. Nutrients 2022; 14:nu14020363. [PMID: 35057544 PMCID: PMC8777776 DOI: 10.3390/nu14020363] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 02/07/2023] Open
Abstract
Advanced glycation end products (AGEs) can be present in food or be endogenously produced in biological systems. Their formation has been associated with chronic neurodegenerative diseases such as Alzheimer’s disease, Parkinson’s disease, multiple sclerosis, and amyotrophic lateral sclerosis. The implication of AGEs in neurodegeneration is related to their ability to bind to AGE-specific receptors and the ability of their precursors to induce the so-called “dicarbonyl stress”, resulting in cross-linking and protein damage. However, the mode of action underlying their role in neurodegeneration remains unclear. While some research has been carried out in observational clinical studies, further in vitro studies may help elucidate these underlying modes of action. This review presents and discusses in vitro methodologies used in research on the potential role of AGEs in neuroinflammation and neurodegeneration. The overview reveals the main concepts linking AGEs to neurodegeneration, the current findings, and the available and advisable in vitro models to study their role. Moreover, the major questions regarding the role of AGEs in neurodegenerative diseases and the challenges and discrepancies in the research field are discussed.
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Dimova R, Chakarova N, Grozeva G, Tankova T. The relationship between endogenous secretory RAGE and cardiac autonomic function in prediabetes. Int J Clin Pract 2021; 75:e14769. [PMID: 34473880 DOI: 10.1111/ijcp.14769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 08/30/2021] [Indexed: 11/26/2022] Open
Abstract
AIMS The putative protective role of esRAGE for cardiac autonomic function (CAF) remains unclear. To address this question, the present study has assessed the relationship of serum AGEs, sRAGE and esRAGE, and tissue AGEs with CAF in a high-risk population without diabetes. MATERIAL AND METHODS This study enrolled 48 subjects of mean age 52.7 ± 11.2 years and mean BMI 28.4 ± 6.3 kg/m2 , divided into two groups according to glucose tolerance: 16 with normal glucose tolerance (NGT) and 24 with prediabetes. A standard oral glucose tolerance test (OGTT) was performed. The glucose tolerance was defined according to 2006 WHO criteria. Fasting, 120-minutes glucose, lipids, creatinine, and HbA1c were measured. eGFR was calculated (CKD-EPI). Fasting, 120-minutes insulin (ECLIA method), advanced glycation end products (AGEs), plasma-soluble receptor for AGE (sRAGE), and endogenous secreted isoform of the receptor for AGE (esRAGE), (ELISA method) were assessed. HOMA-IR was calculated. Tissue AGEs were assessed by skin autofluorescence (AGE-Reader, DiagnOpticsTM). CAF was evaluated with ANX 3.0 autonomic nervous-monitoring system (ANSAR), applying deep breathing, Valsalva, and standing. RESULTS There was a significant decline in CAF in prediabetes in comparison with NGT. Serum and tissue AGEs, sRAGE, and esRAGE levels were similar between groups. On the matrix analysis, both sympathetic and parasympathetic activities at baseline and after standing and sympathetic tone during Valsalva were positively related to esRAGE in prediabetes. Multivariate regression analysis showed that esRAGE is an independent contributor to sympathetic, parasympathetic, and total autonomic tone in prediabetes accounting for about 28%, 34%, and 35% of their variances, respectively. CONCLUSION Our results have demonstrated that CAF is decreased in prediabetes. esRAGE, but not sRAGE, is reciprocally related to CAF, probably opposing the negative effects of glycation.
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Affiliation(s)
- Rumyana Dimova
- Division of Diabetology, Department of Endocrinology, Medical University Sofia, Sofia, Bulgaria
| | - Nevena Chakarova
- Division of Diabetology, Department of Endocrinology, Medical University Sofia, Sofia, Bulgaria
| | - Greta Grozeva
- Division of Diabetology, Department of Endocrinology, Medical University Sofia, Sofia, Bulgaria
| | - Tsvetalina Tankova
- Division of Diabetology, Department of Endocrinology, Medical University Sofia, Sofia, Bulgaria
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28
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Abstract
Uremic encephalopathy encompasses a wide range of central nervous system abnormalities associated with poor kidney function occurring with either progressive chronic kidney disease or acute kidney injury. The syndrome is likely caused by retention of uremic solutes, alterations in hormonal metabolism, changes in electrolyte and acid-base homeostasis, as well as changes in vascular reactivity, blood-brain barrier transport, and inflammation. There are no defining clinical, laboratory, or imaging findings, and the diagnosis is often made retrospectively when symptoms improve after dialysis or transplantation. The diagnosis is also made difficult because of the many confounding and overlapping conditions seen in patients with chronic kidney disease and acute kidney injury. Thus, institution of kidney replacement therapy should be considered as a trial to improve symptoms in the right clinical context. Neurological symptoms that do not improve after improvement in clearance should prompt a search for other explanations. Further knowledge linking possible uremic retention solutes with neurological symptoms is needed to better understand this syndrome as well as to develop more tailored treatments that aim to improve cognitive function.
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29
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Ogura J, Sugiura H, Tanaka A, Ono S, Sato T, Sato T, Maekawa M, Yamaguchi H, Mano N. Glucose-induced oxidative stress leads to in S-nitrosylation of protein disulfide isomerase in neuroblastoma cells. Biochim Biophys Acta Gen Subj 2021; 1865:129998. [PMID: 34474117 DOI: 10.1016/j.bbagen.2021.129998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/18/2021] [Accepted: 08/26/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Dementia places a significant burden on both patients and caregivers. Since diabetes is a risk factor for dementia, it is imperative to identify the relationship between diabetes and cognitive disorders. Protein disulfide isomerase (PDI) is an enzyme for oxidative protein folding. PDI S-nitrosylation is observed in the brain tissues of Alzheimer's disease patients. The aim of this study is to clarify the relationship between PDI S-nitrosylation and diabetes. METHODS We used SH-SY5Y cells cultured in high-glucose media. RESULTS S-nitrosylated PDI level increased at 7 days and remained high till 28 days in SH-SY5Y cells cultured in high-glucose media. Using PDI wild-type- or PDI C343S-expressing SH-SY5Y cells, PDI C343 was identified as the site of glucose-induced S-nitrosylation. IRE1α and PERK were phosphorylated at day 14 in the SH-SY5Y cells cultured in high-glucose media, and the phosphorylated status was maintained to day 28. To determine the effect of S-nitrosylated PDI on endoplasmic reticulum stress signaling, SH-SY5Y cells were treated with S-nitrosocystein (SNOC) for 30 min, following which the medium was replaced with SNOC-free media and the cells were cultured for 24 h. Only phosphorylated IRE1α treated with SNOC was associated with PDI S-nitrosylation. Neohesperidin, a flavonoid in citrus fruits, is a natural antioxidant. The treatment with neohesperidin in the final 7 days of glucose loading reversed PDI S-nitrosylation and improved cell proliferation. CONCLUSION Glucose loading leads to S-nitrosylation of PDI C343 and induces neurodegeneration via IRE1α phosphorylation. GENERAL SIGNIFICANCE The results may be useful for designing curative treatment strategies for dementia.
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Affiliation(s)
- Jiro Ogura
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan.
| | - Hiroki Sugiura
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Atsushi Tanaka
- Research Institute of Medical Sciences, School of Medicine, Yamagata University, Yamagata, Japan
| | - Shinji Ono
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Toshiyuki Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| | - Toshihiro Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| | - Masamitsu Maekawa
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan; Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Hiroaki Yamaguchi
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| | - Nariyasu Mano
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan; Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
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30
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Magi S, Preziuso A, Piccirillo S, Giampieri F, Cianciosi D, Orciani M, Amoroso S. The Neuroprotective Effect of L-Carnitine against Glyceraldehyde-Induced Metabolic Impairment: Possible Implications in Alzheimer's Disease. Cells 2021; 10:cells10082109. [PMID: 34440878 PMCID: PMC8394427 DOI: 10.3390/cells10082109] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 08/12/2021] [Accepted: 08/14/2021] [Indexed: 12/19/2022] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disorder characterized by progressive cognitive regression and memory loss. Dysfunctions of both glucose metabolism and mitochondrial dynamics have been recognized as the main upstream events of the degenerative processes leading to AD. It has been recently found that correcting cell metabolism by providing alternative substrates can prevent neuronal injury by retaining mitochondrial function and reducing AD marker levels. Here, we induced an AD-like phenotype by using the glycolysis inhibitor glyceraldehyde (GA) and explored whether L-carnitine (4-N-trimethylamino-3-hydroxybutyric acid, LC) could mitigate neuronal damage, both in SH-SY5Y neuroblastoma cells and in rat primary cortical neurons. We have already reported that GA significantly modified AD marker levels; here we demonstrated that GA dramatically compromised cellular bioenergetic status, as revealed by glycolysis and oxygen consumption rate (OCR) evaluation. We found that LC ameliorated cell survival, improved OCR and ATP synthesis, prevented the loss of the mitochondrial membrane potential (Δψm) and reduced the formation of reactive oxygen species (ROS). Of note, the beneficial effect of LC did not rely on the glycolytic pathway rescue. Finally, we noticed that LC significantly reduced the increase in pTau levels induced by GA. Overall, these findings suggest that the use of LC can promote cell survival in the setting of the metabolic impairments commonly observed in AD. Our data suggest that LC may act by maintaining mitochondrial function and by reducing the pTau level.
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Affiliation(s)
- Simona Magi
- Department of Biomedical Sciences and Public Health, School of Medicine, University “Politecnica delle Marche”, Via Tronto 10/A, 60126 Ancona, Italy; (A.P.); (S.P.); (S.A.)
- Correspondence: ; Tel./Fax: +39-071-220-6040
| | - Alessandra Preziuso
- Department of Biomedical Sciences and Public Health, School of Medicine, University “Politecnica delle Marche”, Via Tronto 10/A, 60126 Ancona, Italy; (A.P.); (S.P.); (S.A.)
| | - Silvia Piccirillo
- Department of Biomedical Sciences and Public Health, School of Medicine, University “Politecnica delle Marche”, Via Tronto 10/A, 60126 Ancona, Italy; (A.P.); (S.P.); (S.A.)
| | - Francesca Giampieri
- Department of Clinical Sciences, School of Medicine, University “Politecnica delle Marche”, Via Tronto 10/A, 60126 Ancona, Italy; (F.G.); (D.C.)
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah 21577, Saudi Arabia
| | - Danila Cianciosi
- Department of Clinical Sciences, School of Medicine, University “Politecnica delle Marche”, Via Tronto 10/A, 60126 Ancona, Italy; (F.G.); (D.C.)
| | - Monia Orciani
- Department of Clinical and Molecular Sciences-Histology, School of Medicine, University “Politecnica delle Marche”, Via Tronto 10/A, 60126 Ancona, Italy;
| | - Salvatore Amoroso
- Department of Biomedical Sciences and Public Health, School of Medicine, University “Politecnica delle Marche”, Via Tronto 10/A, 60126 Ancona, Italy; (A.P.); (S.P.); (S.A.)
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31
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Aglago EK, Schalkwijk CG, Freisling H, Fedirko V, Hughes DJ, Jiao L, Dahm CC, Olsen A, Tjønneland A, Katzke V, Johnson T, Schulze MB, Aleksandrova K, Masala G, Sieri S, Simeon V, Tumino R, Macciotta A, Bueno-de-Mesquita B, Skeie G, Gram IT, Sandanger T, Jakszyn P, Sánchez MJ, Amiano P, Colorado-Yohar SM, Gurrea AB, Perez-Cornago A, Mayén AL, Weiderpass E, Gunter MJ, Heath AK, Jenab M. Plasma concentrations of advanced glycation end-products and colorectal cancer risk in the EPIC study. Carcinogenesis 2021; 42:705-713. [PMID: 33780524 PMCID: PMC8162627 DOI: 10.1093/carcin/bgab026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/02/2021] [Accepted: 03/25/2021] [Indexed: 02/07/2023] Open
Abstract
Advanced glycation end-products (AGEs) are a heterogeneous group of compounds formed by the non-enzymatic reaction between amino acids and reducing sugars, or dicarbonyls as intermediate compounds. Experimental studies suggest that AGEs may promote colorectal cancer, but prospective epidemiologic studies are inconclusive. We conducted a case-control study nested within a large European cohort. Plasma concentrations of three protein-bound AGEs-Nε-(carboxy-methyl)lysine (CML), Nε-(carboxy-ethyl)lysine (CEL) and Nδ-(5-hydro-5-methyl-4-imidazolon-2-yl)-ornithine (MG-H1)-were measured by ultra-performance liquid chromatography-tandem mass spectrometry in baseline samples collected from 1378 incident primary colorectal cancer cases and 1378 matched controls. Multivariable-adjusted odds ratios (ORs) and 95% confidence intervals (CIs) were computed using conditional logistic regression for colorectal cancer risk associated with CML, CEL, MG-H1, total AGEs, and [CEL+MG-H1: CML] and [CEL:MG-H1] ratios. Inverse colorectal cancer risk associations were observed for CML (OR comparing highest to lowest quintile, ORQ5 versus Q1 = 0.40, 95% CI: 0.27-0.59), MG-H1 (ORQ5 versus Q1 = 0.73, 95% CI: 0.53-1.00) and total AGEs (OR Q5 versus Q1 = 0.52, 95% CI: 0.37-0.73), whereas no association was observed for CEL. A higher [CEL+MG-H1: CML] ratio was associated with colorectal cancer risk (ORQ5 versus Q1 = 1.91, 95% CI: 1.31-2.79). The associations observed did not differ by sex, or by tumour anatomical sub-site. Although individual AGEs concentrations appear to be inversely associated with colorectal cancer risk, a higher ratio of methylglyoxal-derived AGEs versus those derived from glyoxal (calculated by [CEL+MG-H1: CML] ratio) showed a strong positive risk association. Further insight on the metabolism of AGEs and their dicarbonyls precursors, and their roles in colorectal cancer development is needed.
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Affiliation(s)
- Elom K Aglago
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Casper G Schalkwijk
- Department of Internal Medicine, CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Heinz Freisling
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Veronika Fedirko
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - David J Hughes
- Cancer Biology and Therapeutics Group (CBT), Conway Institute, School of Biomolecular and Biomedical Science (SBBS), University College Dublin, Dublin, Ireland
| | - Li Jiao
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | | | - Anja Olsen
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Danish Cancer Society Research Center, København, Denmark
| | - Anne Tjønneland
- Danish Cancer Society Research Center, København, Denmark
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Verena Katzke
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Theron Johnson
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- Institute of Nutrition Science, University of Potsdam, Nuthetal, Germany
| | - Krasimira Aleksandrova
- Institute of Nutrition Science, University of Potsdam, Nuthetal, Germany
- Nutrition, Immunity and Metabolism Senior Scientist Group, Department of Nutrition and Gerontology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), Nuthetal, Germany
| | - Giovanna Masala
- Cancer Risk Factors and Life-Style Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network-ISPRO, Florence, Italy
| | - Sabina Sieri
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milano, Italy
| | - Vittorio Simeon
- Dipartimento di Salute Mentale e Fisica e Medicina Preventiva, University ‘Luigi Vanvitelli’, Napoli, Italy
| | - Rosario Tumino
- Cancer Registry and Histopathology Department, Provincial Health Authority (ASP 7), Ragusa, Italy
| | - Alessandra Macciotta
- Department of Clinical and Biological Sciences, University of Turin, Torino, Italy
| | - Bas Bueno-de-Mesquita
- Department for Determinants of Chronic Diseases (DCD), National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720 BA Bilthoven, The Netherlands
| | - Guri Skeie
- Faculty of Health Sciences, Department of Community Medicine, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Inger Torhild Gram
- Faculty of Health Sciences, Department of Community Medicine, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Torkjel Sandanger
- Faculty of Health Sciences, Department of Community Medicine, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Paula Jakszyn
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Programme, Catalan Institute of Oncology, Barcelona, Spain
- Blanquerna School of Health Sciences, Ramon Llull University, Barcelona, Spain
| | - Maria-Jose Sánchez
- Escuela Andaluza de Salud Pública (EASP), Granada, Spain
- Instituto de Investigación Biosanitaria ibs.Granada, Granada, Spain
- Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Pilar Amiano
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Public Health Division of Gipuzkoa, BioDonostia Research Institute, Donostia-San Sebastian, Spain
| | - Sandra M Colorado-Yohar
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia, Spain
- Research Group on Demography and Health, National Faculty of Public Health, University of Antioquia, Medellín, Colombia
| | - Aurelio Barricarte Gurrea
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Navarra Public Health Institute, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Aurora Perez-Cornago
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Ana-Lucia Mayén
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Elisabete Weiderpass
- Office of the Director, International Agency for Research on Cancer (IARC), Lyon, France
| | - Marc J Gunter
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Alicia K Heath
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Mazda Jenab
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
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Semchyshyn H. Is carbonyl/AGE/RAGE stress a hallmark of the brain aging? Pflugers Arch 2021; 473:723-734. [PMID: 33742308 DOI: 10.1007/s00424-021-02529-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 01/21/2021] [Accepted: 01/28/2021] [Indexed: 12/13/2022]
Abstract
Recent studies have linked carbonyl stress to many physiological processes. Increase in the levels of carbonyl compounds, derived from both endogenous and exogenous sources, is believed to accompany normal age-related decline as well as different pathologies. Reactive carbonyl species (RCS) are capable of damaging biomolecules via their involvement in a net of nonspecific reactions. In the advanced stages of RCS metabolism, variety of poorly degraded adducts and crosslinks, collectively named advanced glycoxidation end products (AGEs), arises. They are accumulated in an age-dependent manner in different tissues and organs and can contribute to inflammatory processes. In particular, detrimental effects of the end products are realized via activation of the specific receptor for AGEs (RAGE) and RAGE-dependent inflammatory signaling cascade. Although it is unclear, whether carbonyl stress is causal for age-associated impairments or it results from age- and disease-related cell damages, increased levels of RCS and AGEs are tightly related to inflammaging, and therefore, attenuation of the RAGE signaling is suggested as an effective approach for the treatment of inflammation and age-related disorders. The question raised in this review is whether specific metabolism in the aging brain related to carbonyl/RCS/AGE/RAGE stress.
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Affiliation(s)
- Halyna Semchyshyn
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str, Ivano-Frankivsk, 76018, Ukraine.
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Takeuchi M, Sakasai-Sakai A, Takata T, Takino JI, Koriyama Y, Kikuchi C, Furukawa A, Nagamine K, Hori T, Matsunaga T. Intracellular Toxic AGEs (TAGE) Triggers Numerous Types of Cell Damage. Biomolecules 2021; 11:biom11030387. [PMID: 33808036 PMCID: PMC8001776 DOI: 10.3390/biom11030387] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/24/2021] [Accepted: 03/01/2021] [Indexed: 12/12/2022] Open
Abstract
The habitual intake of large amounts of sugar, which has been implicated in the onset/progression of lifestyle-related diseases (LSRD), induces the excessive production of glyceraldehyde (GA), an intermediate of sugar metabolism, in neuronal cells, hepatocytes, and cardiomyocytes. Reactions between GA and intracellular proteins produce toxic advanced glycation end-products (toxic AGEs, TAGE), the accumulation of which contributes to various diseases, such as Alzheimer’s disease, non-alcoholic steatohepatitis, and cardiovascular disease. The cellular leakage of TAGE affects the surrounding cells via the receptor for AGEs (RAGE), thereby promoting the onset/progression of LSRD. We demonstrated that the intracellular accumulation of TAGE triggered numerous cellular disorders, and also that TAGE leaked into the extracellular space, thereby increasing extracellular TAGE levels in circulating fluids. Intracellular signaling and the production of reactive oxygen species are affected by extracellular TAGE and RAGE interactions, which, in turn, facilitate the intracellular generation of TAGE, all of which may contribute to the pathological changes observed in LSRD. In this review, we discuss the relationships between intracellular TAGE levels and numerous types of cell damage. The novel concept of the “TAGE theory” is expected to open new perspectives for research into LSRD.
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Affiliation(s)
- Masayoshi Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa 920-0293, Japan; (A.S.-S.); (T.T.)
- Correspondence: ; Tel.: +81-76-218-8456
| | - Akiko Sakasai-Sakai
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa 920-0293, Japan; (A.S.-S.); (T.T.)
| | - Takanobu Takata
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa 920-0293, Japan; (A.S.-S.); (T.T.)
| | - Jun-ichi Takino
- Department of Biochemistry, Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan; (J.-i.T.); (T.H.)
| | - Yoshiki Koriyama
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka, Mie 513-8670, Japan; (Y.K.); (A.F.)
| | - Chigusa Kikuchi
- Department of Clinical Pharmacy, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan; (C.K.); (T.M.)
| | - Ayako Furukawa
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka, Mie 513-8670, Japan; (Y.K.); (A.F.)
| | - Kentaro Nagamine
- Department of Clinical Nutrition, Faculty of Health Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan;
| | - Takamitsu Hori
- Department of Biochemistry, Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan; (J.-i.T.); (T.H.)
| | - Tamihide Matsunaga
- Department of Clinical Pharmacy, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan; (C.K.); (T.M.)
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Takeuchi M. Toxic AGEs (TAGE) theory: a new concept for preventing the development of diseases related to lifestyle. Diabetol Metab Syndr 2020; 12:105. [PMID: 33292465 PMCID: PMC7708159 DOI: 10.1186/s13098-020-00614-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 11/19/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The habitual excessive intake of sugar (i.e., sucrose and high-fructose corn syrup), which has been implicated in the onset of diabetes mellitus, induces excessive production of glyceraldehyde, a metabolite produced during glucose and fructose metabolism, in hepatocytes, neuronal cells, and cardiomyocytes. MAIN TEXT Toxic advanced glycation end-products (toxic AGEs, TAGE) are formed from reactions between glyceraldehyde and intracellular proteins, and their accumulation contributes to various cellular disorders. TAGE leakage from cells affects the surrounding cells and increases serum TAGE levels, promoting the onset and/or development of lifestyle-related diseases (LSRD). Therefore, serum TAGE levels have potential as a novel biomarker for predicting the onset and/or progression of LSRD, and minimizing the effects of TAGE might help to prevent the onset and/or progression of LSRD. Serum TAGE levels are closely related to LSRD associated with the excessive ingestion of sugar and/or dietary AGEs. CONCLUSIONS The TAGE theory is also expected to open new perspectives for research into numerous other diseases.
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Affiliation(s)
- Masayoshi Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Uchinada-machi, Ishikawa, 920-0293, Japan.
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35
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Kang Q, Yang C. Oxidative stress and diabetic retinopathy: Molecular mechanisms, pathogenetic role and therapeutic implications. Redox Biol 2020; 37:101799. [PMID: 33248932 PMCID: PMC7767789 DOI: 10.1016/j.redox.2020.101799] [Citation(s) in RCA: 418] [Impact Index Per Article: 104.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/29/2020] [Accepted: 11/10/2020] [Indexed: 12/18/2022] Open
Abstract
Oxidative stress, a cytopathic outcome of excessive generation of ROS and the repression of antioxidant defense system for ROS elimination, is involved in the pathogenesis of multiple diseases, including diabetes and its complications. Retinopathy, a microvascular complication of diabetes, is the primary cause of acquired blindness in diabetic patients. Oxidative stress has been verified as one critical contributor to the pathogenesis of diabetic retinopathy. Oxidative stress can both contribute to and result from the metabolic abnormalities induced by hyperglycemia, mainly including the increased flux of the polyol pathway and hexosamine pathway, the hyper-activation of protein kinase C (PKC) isoforms, and the accumulation of advanced glycation end products (AGEs). Moreover, the repression of the antioxidant defense system by hyperglycemia-mediated epigenetic modification also leads to the imbalance between the scavenging and production of ROS. Excessive accumulation of ROS induces mitochondrial damage, cellular apoptosis, inflammation, lipid peroxidation, and structural and functional alterations in retina. Therefore, it is important to understand and elucidate the oxidative stress-related mechanisms underlying the progress of diabetic retinopathy. In addition, the abnormalities correlated with oxidative stress provide multiple potential therapeutic targets to develop safe and effective treatments for diabetic retinopathy. Here, we also summarized the main antioxidant therapeutic strategies to control this disease. Oxidative stress can both contribute to and result from hyperglycemia-induced metabolic abnormalities in retina. Genes important in regulation of ROS are epigenetically modified, increasing ROS accumulation in retina. Oxidative stress is closely associated with the pathological changes in the progress of diabetic retinopathy. Antioxidants ameliorate retinopathy through targeting multiple steps of oxidative stress.
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Affiliation(s)
- Qingzheng Kang
- Institute for Advanced Study, Shenzhen University, Nanshan District, Shenzhen, 518060, China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Chunxue Yang
- Department of Pathology, The University of Hong Kong, Hong Kong SAR, 999077, China.
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Shigeta T, Sasamoto K, Yamamoto T. A novel crosslinked type of advanced glycation end-product derived from lactaldehyde. Heliyon 2020; 6:e05337. [PMID: 33204871 PMCID: PMC7653286 DOI: 10.1016/j.heliyon.2020.e05337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/05/2020] [Accepted: 10/21/2020] [Indexed: 11/16/2022] Open
Abstract
Glycation of amino or guanidino groups of proteins with glucose and glucose-derived reactive aldehydes, such as α-hydroxyaldehydes, leads to accumulation of advanced glycation end-products (AGEs) in the body, resulting in diabetic complications and age-related pathology. Although molecular structures of glycolaldehyde- and glyceraldehyde-derived AGEs have been described in previous studies, little is known about lactaldehyde-derived AGEs of α-hydroxyaldehydes. Here, we report a novel crosslinked type of AGE, named as lactaldehyde-derived lysine dimer (LAK2), which is produced due to non-enzymatic glycation of Nα-acetyl-L-lysine with lactaldehyde under physiological conditions. We have identified the molecular structure of LAK2 by extensive mass spectrometry and nuclear magnetic resonance analyses. Furthermore, we propose a reaction pathway to produce LAK2, in which it is formed through an intermediate common with the recently reported lactaldehyde-derived pyridinium-type lysine adduct (LAPL). Since lactaldehyde is known to be produced from L-threonine in a myeloperoxidase (MPO)-mediated reaction at sites of inflammation, LAK2 has the potential to be an oxidative stress marker of MPO-mediated reactions induced in inflammation.
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Affiliation(s)
- Tomoaki Shigeta
- Bloom Technology Corporation, 3-14-3 Minamikumamoto, Kumamoto 860-0812, Japan
| | - Kazumi Sasamoto
- Bloom Technology Corporation, 3-14-3 Minamikumamoto, Kumamoto 860-0812, Japan
| | - Tetsuro Yamamoto
- Bloom Technology Corporation, 3-14-3 Minamikumamoto, Kumamoto 860-0812, Japan
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37
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Nasu R, Furukawa A, Suzuki K, Takeuchi M, Koriyama Y. The Effect of Glyceraldehyde-Derived Advanced Glycation End Products on β-Tubulin-Inhibited Neurite Outgrowth in SH-SY5Y Human Neuroblastoma Cells. Nutrients 2020; 12:nu12102958. [PMID: 32992566 PMCID: PMC7601248 DOI: 10.3390/nu12102958] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/14/2020] [Accepted: 09/24/2020] [Indexed: 02/06/2023] Open
Abstract
Nutritional factors can affect the risk of developing neurological disorders and their rate of progression. In particular, abnormalities of carbohydrate metabolism in diabetes mellitus patients lead to an increased risk of neurological disorders such as Alzheimer’s disease (AD). In this study, we investigated the relationship between nervous system disorder and the pathogenesis of AD by exposing SH-SY5Y neuroblastoma cells to glyceraldehyde (GA). We previously reported that GA-derived toxic advanced glycation end products (toxic AGEs, TAGE) induce AD-like alterations including intracellular tau phosphorylation. However, the role of TAGE and their target molecules in the pathogenesis of AD remains unclear. In this study, we investigated the target protein for TAGE by performing two-dimensional immunoblot analysis with anti-TAGE antibody and mass spectrometry and identified β-tubulin as one of the targets. GA treatment induced TAGE-β-tubulin formation and abnormal aggregation of β-tubulin, and inhibited neurite outgrowth in SH-SY5Y cells. On the other hand, glucose-derived AGEs were also involved in developing AD. However, glucose did not make abnormal aggregation of β-tubulin and did not inhibit neurite outgrowth. Understanding the underlying mechanism of TAGE-β-tubulin formation by GA and its role in neurodegeneration may aid in the development of novel therapeutics and neuroprotection strategies.
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Affiliation(s)
- Ryuto Nasu
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka 513-8670, Japan; (R.N.); (A.F.); (K.S.)
| | - Ayako Furukawa
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka 513-8670, Japan; (R.N.); (A.F.); (K.S.)
| | - Keita Suzuki
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka 513-8670, Japan; (R.N.); (A.F.); (K.S.)
| | - Masayoshi Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Uchinada-machi, Ishikawa 920-0293, Japan;
| | - Yoshiki Koriyama
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka 513-8670, Japan; (R.N.); (A.F.); (K.S.)
- Correspondence:
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Chan TC, Wilkinson Berka JL, Deliyanti D, Hunter D, Fung A, Liew G, White A. The role of reactive oxygen species in the pathogenesis and treatment of retinal diseases. Exp Eye Res 2020; 201:108255. [PMID: 32971094 DOI: 10.1016/j.exer.2020.108255] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 09/17/2020] [Accepted: 09/18/2020] [Indexed: 12/15/2022]
Abstract
Reactive oxygen species (ROS) normally play an important physiological role in health regulating cellular processes and signal transduction. The amount of ROS is usually kept in fine balance with the generation of ROS largely being offset by the body's antioxidants. A tipping of this balance has increasingly been recognised as a contributor to human disease. The retina, as a result of its cellular anatomy and physical location, is a potent generator of ROS that has been linked to several major retinal diseases. This review will provide a summary of the role of oxidative stress in the pathogenesis of diabetic retinopathy, age-related macular degeneration, myopia, retinal vein occlusion, retinitis pigmentosa and retinopathy of prematurity. Therapies aimed at controlling oxidative stress in these diseases are also examined.
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Affiliation(s)
- Thomas Cw Chan
- Discipline of Ophthalmology and Eye Health, Faculty of Medicine and Health, University of Sydney, New South Wales, Australia
| | - Jennifer L Wilkinson Berka
- Department of Anatomy and Neuroscience, School of Biomedical Sciences, The University of Melbourne, Medical Building 181, Grattan Street, Parkville, Victoria, 3010, Australia; Department of Diabetes, The Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Devy Deliyanti
- Department of Anatomy and Neuroscience, School of Biomedical Sciences, The University of Melbourne, Medical Building 181, Grattan Street, Parkville, Victoria, 3010, Australia; Department of Diabetes, The Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Damien Hunter
- Discipline of Ophthalmology and Eye Health, Faculty of Medicine and Health, University of Sydney, New South Wales, Australia; Centre for Vision Research, Westmead Institute of Medical Research, New South Wales, Australia
| | - Adrian Fung
- Westmead and Central Clinical Schools, Faculty of Medicine and Health, University of Sydney, New South Wales, Australia; Faculty of Medicine Health and Human Sciences, Macquarie University, New South Wales, Australia; Save Sight Institute, 8 Macquarie St, Sydney, Australia
| | - Gerald Liew
- Discipline of Ophthalmology and Eye Health, Faculty of Medicine and Health, University of Sydney, New South Wales, Australia; Centre for Vision Research, Westmead Institute of Medical Research, New South Wales, Australia
| | - Andrew White
- Discipline of Ophthalmology and Eye Health, Faculty of Medicine and Health, University of Sydney, New South Wales, Australia; Centre for Vision Research, Westmead Institute of Medical Research, New South Wales, Australia; Save Sight Institute, 8 Macquarie St, Sydney, Australia; Personal Eyes, Level 6, 34 Charles St, Parramatta, 2150, Australia.
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Enhanced carbonyl stress and disrupted white matter integrity in schizophrenia. Schizophr Res 2020; 223:242-248. [PMID: 32843203 DOI: 10.1016/j.schres.2020.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 04/30/2020] [Accepted: 08/11/2020] [Indexed: 11/19/2022]
Abstract
Carbonyl stress is a state caused by an increase in rich reactive carbonyl compounds (RCOs); RCOs facilitate the formation of advanced glycation end products (AGEs), which are associated with various age-related illnesses. Recently, enhanced carbonyl stress and lower levels of pyridoxal, a kind of vitamin B6 that scavenges RCOs, have been shown to be associated with schizophrenia. Meanwhile, lower levels of pyridoxal have been reported to decrease myelination through the biochemical process of carbonyl stress. Despite a number of reports on white matter disruption in schizophrenia, it is unclear whether this disruption is related to enhanced carbonyl stress. Therefore, we investigated the relationship between carbonyl stress and white matter integrity in schizophrenia using diffusion tensor imaging. A total of 53 patients with schizophrenia and 83 age- and gender-matched healthy controls were recruited. We used plasma pentosidine, an AGE, and serum pyridoxal as carbonyl stress markers. Between-group differences in these carbonyl stress markers and their relationships with white matter integrity were investigated using Tract-Based Spatial Statistics. In the schizophrenia group, plasma pentosidine level was significantly higher and serum pyridoxal level was lower than those of controls. There was a significant negative correlation between plasma pentosidine and white matter integrity in the schizophrenia group, but not in the control group. Our findings suggest that enhanced carbonyl stress is a possible underlying mechanism of white matter microstructural disruption in schizophrenia.
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Oxidative Stress and Vascular Dysfunction in the Retina: Therapeutic Strategies. Antioxidants (Basel) 2020; 9:antiox9080761. [PMID: 32824523 PMCID: PMC7465265 DOI: 10.3390/antiox9080761] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/11/2020] [Accepted: 08/14/2020] [Indexed: 12/14/2022] Open
Abstract
Many retinal diseases, such as diabetic retinopathy, glaucoma, and age-related macular (AMD) degeneration, are associated with elevated reactive oxygen species (ROS) levels. ROS are important intracellular signaling molecules that regulate numerous physiological actions, including vascular reactivity and neuron function. However, excessive ROS formation has been linked to vascular endothelial dysfunction, neuron degeneration, and inflammation in the retina. ROS can directly modify cellular molecules and impair their function. Moreover, ROS can stimulate the production of inflammatory cytokines, such as tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) causing inflammation and cell death. However, there are various compounds with direct or indirect antioxidant activity that have been used to reduce ROS accumulation in animal models and humans. In this review, we report on the physiological and pathophysiological role of ROS in the retina with a special focus on the vascular system. Moreover, we present therapeutic approaches for individual retinal diseases targeting retinal signaling pathways involving ROS.
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Magi S, Piccirillo S, Maiolino M, Lariccia V, Amoroso S. NCX1 and EAAC1 transporters are involved in the protective action of glutamate in an in vitro Alzheimer's disease-like model. Cell Calcium 2020; 91:102268. [PMID: 32827867 DOI: 10.1016/j.ceca.2020.102268] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/08/2020] [Accepted: 08/08/2020] [Indexed: 12/11/2022]
Abstract
Increasing evidence suggests that metabolic dysfunctions are at the roots of neurodegenerative disorders such as Alzheimer's disease (AD). In particular, defects in cerebral glucose metabolism, which have been often noted even before the occurrence of clinical symptoms and histopathological lesions, are now regarded as critical contributors to the pathogenesis of AD. Hence, the stimulation of energy metabolism, by enhancing the availability of specific metabolites, might be an alternative way to improve ATP synthesis and to positively affect AD progression. For instance, glutamate may serve as an intermediary metabolite for ATP synthesis through the tricarboxylic acid (TCA) cycle and the oxidative phosphorylation. We have recently shown that two transporters are critical for the anaplerotic use of glutamate: the Na+-dependent Excitatory Amino Acids Carrier 1 (EAAC1) and the Na+-Ca2+ exchanger 1 (NCX1). Therefore, in the present study, we established an AD-like phenotype by perturbing glucose metabolism in both primary rat cortical neurons and retinoic acid (RA)-differentiated SH-SY5Y cells, and we explored the potential of glutamate to halt cell damage by monitoring neurotoxicity, AD markers, ATP synthesis, cytosolic Ca2+ levels and EAAC1/NCX1 functional activities. We found that glutamate significantly increased ATP production and cell survival, reduced the increase of AD biomarkers (amyloid β protein and the hyperphosphorylated form of tau protein), and recovered the increase of NCX reverse-mode activity. The RNA silencing of either EAAC1 or NCX1 caused the loss of the beneficial effects of glutamate, suggesting the requirement of a functional interplay between these transporters for glutamate-induced protection. Remarkably, our results indicate, as proof-of-principle, that facilitating the use of alternative fuels, like glutamate, may be an effective approach to overcome deficits in glucose utilization and significantly slow down neuronal degenerative process in AD.
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Affiliation(s)
- Simona Magi
- Department of Biomedical Sciences, Public Health, School of Medicine, University "Politecnica delle Marche", Via Tronto 10/A, 60126, Ancona, Italy
| | - Silvia Piccirillo
- Department of Biomedical Sciences, Public Health, School of Medicine, University "Politecnica delle Marche", Via Tronto 10/A, 60126, Ancona, Italy
| | - Marta Maiolino
- Department of Biomedical Sciences, Public Health, School of Medicine, University "Politecnica delle Marche", Via Tronto 10/A, 60126, Ancona, Italy
| | - Vincenzo Lariccia
- Department of Biomedical Sciences, Public Health, School of Medicine, University "Politecnica delle Marche", Via Tronto 10/A, 60126, Ancona, Italy.
| | - Salvatore Amoroso
- Department of Biomedical Sciences, Public Health, School of Medicine, University "Politecnica delle Marche", Via Tronto 10/A, 60126, Ancona, Italy
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Shi X, Ohta Y, Nakano Y, Liu X, Tadokoro K, Feng T, Nomura E, Tsunoda K, Sasaki R, Matsumoto N, Osakada Y, Bian Y, Bian Z, Omote Y, Takemoto M, Hishikawa N, Yamashita T, Abe K. Neuroprotective effect of CuATSM in mice stroke model by ameliorating oxidative stress. Neurosci Res 2020; 166:55-61. [PMID: 32461139 DOI: 10.1016/j.neures.2020.05.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 05/14/2020] [Accepted: 05/21/2020] [Indexed: 12/09/2022]
Abstract
Cu-diacetyl-bis (N4-methylthiosemicarbazone) (CuATSM) has both anti-oxidative and anti-inflammatory activities, but its therapeutic efficacy for oxidative stress has not been thoroughly investigated in acute ischemic stroke. Here, the present study was designed to assess the efficacies of CuATSM in acute ischemic stroke by comparing with the standard neuroprotective reagent edaravone. Mice were subjected to transient middle cerebral occlusion (tMCAO) for 60 min, and then intravenously administrated with CuATSM (1.5 mg/kg) or edaravone (3 mg/kg) just after the reperfusion, and examined at 1 and 3 d. Compared with the vehicle group, CuATSM treatment decreased infarct volumes and oxidative stress at 3d after tMCAO, which was further enhanced by combined CuATSM + edaravone treatment as compared with single CuATSM group, but not improve neurobehaviors. The present study demonstrated that CuATSM showed strong antioxidative and neuroprotective effects in acute ischemic stroke, which was enhanced by the combination with edaravone.
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Affiliation(s)
- Xiaowen Shi
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Yasuyuki Ohta
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Yumiko Nakano
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Xia Liu
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Koh Tadokoro
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Tian Feng
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Emi Nomura
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Keiichiro Tsunoda
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Ryo Sasaki
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Namiko Matsumoto
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Yosuke Osakada
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Yuting Bian
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Zhihong Bian
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Yoshio Omote
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Mami Takemoto
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Nozomi Hishikawa
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Toru Yamashita
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Koji Abe
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan.
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Xing M, Cao Q, Wang Y, Xiao H, Zhao J, Zhang Q, Ji A, Song S. Advances in Research on the Bioactivity of Alginate Oligosaccharides. Mar Drugs 2020; 18:E144. [PMID: 32121067 PMCID: PMC7142810 DOI: 10.3390/md18030144] [Citation(s) in RCA: 116] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 02/22/2020] [Accepted: 02/25/2020] [Indexed: 12/12/2022] Open
Abstract
Alginate is a natural polysaccharide present in various marine brown seaweeds. Alginate oligosaccharide (AOS) is a degradation product of alginate, which has received increasing attention due to its low molecular weight and promising biological activity. The wide-ranging biological activity of AOS is closely related to the diversity of their structures. AOS with a specific structure and distinct applications can be obtained by different methods of alginate degradation. This review focuses on recent advances in the biological activity of alginate and its derivatives, including their anti-tumor, anti-oxidative, immunoregulatory, anti-inflammatory, neuroprotective, antibacterial, hypolipidemic, antihypertensive, and hypoglycemic properties, as well as the ability to suppress obesity and promote cell proliferation and regulate plant growth. We hope that this review will provide theoretical basis and inspiration for the high-value research developments and utilization of AOS-related products.
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Affiliation(s)
- Maochen Xing
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
| | - Qi Cao
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
| | - Yu Wang
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
| | - Han Xiao
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
| | - Jiarui Zhao
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
| | - Qing Zhang
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
| | - Aiguo Ji
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Shuliang Song
- Marine College, Shandong University, Weihai 264209, China; (M.X.); (Q.C.); (Y.W.); (H.X.); (J.Z.); (Q.Z.); (A.J.)
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Javed M, Ahmad MI, Javed H, Naseem S. D-ribose and pathogenesis of Alzheimer's disease. Mol Biol Rep 2020; 47:2289-2299. [PMID: 31933261 DOI: 10.1007/s11033-020-05243-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 01/02/2020] [Indexed: 12/29/2022]
Abstract
It is estimated that the global prevalence of dementia will rise as high as 24 million and predicted to be double in every 20 years which is attributed to the fact that the ageing population is increasing and so more individuals are at risk of developing neurodegenerative diseases like Alzheimer's. Many scientists favored glycation of proteins such as tau, amyloid beta (Aβ) etc. as one of the important risk factor in Alzheimer's disease (AD). Since, D-ribose shows highest glycation ability among other sugars hence, produces advanced glycation end products (AGEs) rapidly. However, there are several other mechanisms suggested by researchers through which D-ribose may cause cognitive impairments. There is a concern related to diabetic patients since they also suffer from D-ribose metabolism, may be more prone to AD risk. Thus, it is imperative that the pathogenesis and the pathways involved in AD progression are explored in the light of ribosylation and AGEs formation for identifying suitable diagnostics marker for early diagnosis or finding promising therapeutic outcomes.
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Affiliation(s)
- Mehjbeen Javed
- Aquatic Toxicology Research Laboratory, Department of Zoology, Aligarh Muslim University, Aligarh, U.P., India
| | - Md Irshad Ahmad
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, U.P., India.,Department of Biophysics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - Hina Javed
- Department of Chemistry, Aligarh Muslim University, Aligarh, U.P., India
| | - Sufia Naseem
- Department of Biochemistry, Faculty of Medicine, Aligarh Muslim University, Aligarh, U.P., India.
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Glycolaldehyde induces sensory neuron death through activation of the c-Jun N-terminal kinase and p-38 MAP kinase pathways. Histochem Cell Biol 2019; 153:111-119. [DOI: 10.1007/s00418-019-01830-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2019] [Indexed: 02/04/2023]
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Crucial players in Alzheimer's disease and diabetes mellitus: Friends or foes? Mech Ageing Dev 2019; 181:7-21. [PMID: 31085195 DOI: 10.1016/j.mad.2019.03.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 03/02/2019] [Accepted: 03/26/2019] [Indexed: 01/21/2023]
Abstract
Alzheimer's disease (AD) and diabetes mellitus, especially type 2 (T2DM), are very common and widespread diseases in contemporary societies, and their incidence is steadily on the increase. T2DM is a multiple metabolic disorder, with several mechanisms including hyperglycaemia, insulin resistance, insulin receptor and insulin growth factor disturbances, glucose toxicity, formation of advanced glycation end products (AGEs) and the activity of their receptors. AD is the most common form of dementia, characterized by the accumulation of extracellular beta amyloid peptide aggregates and intracellular hyper-phosphorylated tau proteins, which are thought to drive and/or accelerate inflammatory and oxidative stress processes leading to neurodegeneration. The aim of this paper is to provide a comprehensive review of the evidence linking T2DM to the onset and development of AD and highlight the unknown or poorly studied "nooks and crannies" of this interesting relationship, hence providing an opportunity to stimulate new ideas for the analysis of comorbidities between AD and DM. Despite, indication of possible biomarkers of early diagnosis of T2DM and AD, this review is also an attempt to answer the question as to whether the crucial factors in the development of both conditions support the link between DM and AD.
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Fujimoto S, Murakami Y, Miyake H, Hayase F, Watanabe H. Identification of a novel advanced glycation end product derived from lactaldehyde. Biosci Biotechnol Biochem 2019; 83:1136-1145. [PMID: 30822216 DOI: 10.1080/09168451.2019.1585745] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Advanced glycation end products (AGEs) are implicated in the development of diabetic complications via the receptor for AGEs (RAGE). We have reported that the 3-hydroxypyridinium (3HP)-containing AGEs derived from α-hydroxyaldehydes physically interact with RAGE and show cytotoxicity. Lactaldehyde (LA) is formed from a reaction between threonine and myeloperoxidase, but no LA-derived AGEs have been characterized. Here, we identify the structure and physiological effects of an AGE derived from LA. We isolated a novel 3HP derivative, 2-acetamido-6-(3-hydroxy-5-methyl-pyridin-1-ium-1-yl)hexanoate, named as N-acetyl-LAPL (lactaldehyde-derived pyridinium-type lysine adduct), from a mixture of LA with Nα-acetyl-L-lysine. LAPL was also detected in the LA-modified protein. LAPL elicited toxicity in PC12 neuronal cells, but the effect was suppressed by the soluble form of RAGE as a decoy receptor. Moreover, surface plasmon resonance-based analysis revealed that LAPL specifically binds to recombinant RAGE. These results indicate that LA generates an AGE containing the 3HP moiety and contributes to RAGE-dependent cytotoxicity. Abbreviations: AGEs: advanced glycation end products; RAGE: receptor for advanced glycation end products; 3HP: 3-hydroxypyridinium; LA: lactaldehyde; LAPL: lactaldehyde-derived pyridinium-type lysine adduct; BSA: bovine serum albumin; GLAP: glyceraldehyde-derived pyridinium; MPO: myeloperoxidase; HFBA: heptafluorobutyric acid; TFA: trifluoroacetic acid; HPLC: high performance liquid chromatography; LC-ESI-QTOF-MS: liquid chromatography-electrospray ionization-quadrupole time-of-flight-mass spectrometry; NMR: nuclear magnetic resonance; LA-BSA: lactaldehyde-modified bovine serum albumin; PBS: phosphate buffered saline, GST, glutathione S-transferase; SPR: surface plasmon resonance; OP-lysine: 2-ammonio-6-(3-oxidopyridinium-1-yl)hexanoate; GLO1: glyoxalase 1; MG, methylglyoxal.
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Affiliation(s)
- Shiori Fujimoto
- a Department of Agriculture , Meiji University , Kawasaki , Japan
| | - Yoto Murakami
- a Department of Agriculture , Meiji University , Kawasaki , Japan
| | - Haruna Miyake
- a Department of Agriculture , Meiji University , Kawasaki , Japan
| | - Fumitaka Hayase
- a Department of Agriculture , Meiji University , Kawasaki , Japan
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Shi X, Ohta Y, Shang J, Morihara R, Nakano Y, Fukui Y, Liu X, Feng T, Huang Y, Sato K, Takemoto M, Hishikawa N, Yamashita T, Suzuki E, Hasumi K, Abe K. Neuroprotective effects of SMTP-44D in mice stroke model in relation to neurovascular unit and trophic coupling. J Neurosci Res 2018; 96:1887-1899. [PMID: 30242877 DOI: 10.1002/jnr.24326] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/26/2018] [Accepted: 08/27/2018] [Indexed: 12/21/2022]
Abstract
Stachybotrys microspora triprenyl phenol (SMTP)-44D has both anti-oxidative and anti-inflammatory activities, but its efficacy has not been proved in relation to the pathological changes of neurovascular unit (NVU) and neurovascular trophic coupling (NVTC) in ischemic stroke. Here, the present study was designed to assess the efficacies of SMTP-44D, moreover, compared with the standard neuroprotective reagent edaravone in ischemic brains. ICR mice were subjected to transient middle cerebral artery occlusion (tMCAO) for 60 min, SMTP-44D (10 mg/kg) or edaravone (3 mg/kg) was intravenously administrated through subclavian vein just after the reperfusion, and these mice were examined at 1, 3, and 7 d after reperfusion. Compared with the vehicle group, SMTP-44D treatment revealed obvious ameliorations in clinical scores and infarct volume, meanwhile, markedly suppressed the accumulations of 4-HNE, 8-OHdG, nitrotyrosine, RAGE, TNF-α, Iba-1, and cleaved caspase-3 after tMCAO. In addition, SMTP-44D significantly prevented the dissociation of NVU and improved the intensity of NAGO/BDNF and the number of BDNF/TrkB and BDNF/NeuN double positive cells. These effects of SMTP-44D in reducing oxidative and inflammatory stresses were similar to or stronger than those of edaravone. The present study demonstrated that SMTP-44D showed strong anti-oxidative, anti-inflammatory, and anti-apoptotic effects, moreover, the drug also significantly improved the NVU damage and NVTC in the ischemic brain.
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Affiliation(s)
- Xiaowen Shi
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Yasuyuki Ohta
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Jingwei Shang
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Ryuta Morihara
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Yumiko Nakano
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Yusuke Fukui
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Xia Liu
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Tian Feng
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Yong Huang
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kota Sato
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Mami Takemoto
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Nozomi Hishikawa
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Toru Yamashita
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Eriko Suzuki
- Department of Applied Biological Science, Tokyo Noko University, Fuchu, Japan
| | - Keiji Hasumi
- Department of Applied Biological Science, Tokyo Noko University, Fuchu, Japan
| | - Koji Abe
- Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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Murakami Y, Fujino T, Kurachi R, Hasegawa T, Usui T, Hayase F, Watanabe H. Identification of pyridinoline, a collagen crosslink, as a novel intrinsic ligand for the receptor for advanced glycation end-products (RAGE). Biosci Biotechnol Biochem 2018; 82:1508-1514. [DOI: 10.1080/09168451.2018.1475213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
ABSTRACT
Advanced glycation end-products (AGEs) elicit inflammatory responses via the receptor for AGEs (RAGE) and participate in the pathogenesis of diabetic complications. An earlier study showed that 3-hydroxypyridinium (3-HP), a common moiety of toxic AGEs such as glyceraldehyde-derived pyridinium (GLAP) and GA-pyridine, is essential for the interaction with RAGE. However, the physiological significance of 3-HP recognition by RAGE remains unclear. We hypothesized that pyridinoline (Pyr), a collagen crosslink containing the 3-HP moiety, could have agonist activity with RAGE. To test this hypothesis, we purified Pyr from bovine achilles tendons and examined its cytotoxicity to rat neuronal PC12 cells. Pyr elicited toxicity to PC12 cells in a concentration-dependent manner, and this effect was attenuated in the presence of either the anti-RAGE antibody or the soluble form of RAGE. Moreover, surface plasmon resonance-based analysis showed specific binding of Pyr to RAGE. These data indicate that Pyr is an intrinsic ligand for RAGE.
Abbreviations: AGEs: advanced glycation end-products; RAGE: receptor for advanced glycation end-products; DAMPs: damage-associated molecular patterns; PRR: pattern recognition receptor; TLR: toll-like receptor; GLAP: glyceraldehyde-derived pyridinium; 3-HP: 3-hydroxypyridinium; Pyr: pyridinoline; HFBA: heptafluorobutyric acid; GST: glutathione S-transferase; SPR: surface plasmon resonance; ECM: extracellular matrix; EMT: epithelial to mesenchymal transition
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Affiliation(s)
- Yoto Murakami
- Department of Agriculture, Meiji University, Kawasaki, Japan
| | - Takayuki Fujino
- Department of Agriculture, Meiji University, Kawasaki, Japan
| | - Ryotaro Kurachi
- Department of Agriculture, Meiji University, Kawasaki, Japan
| | | | - Teruyuki Usui
- Department of Nutrition, Kagawa Nutrition University, Sakado, Japan
| | - Fumitaka Hayase
- Department of Agriculture, Meiji University, Kawasaki, Japan
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Sugiura S, Taniguchi R, Nishioka Y, Iwase R, Tanaka R, Miyake H, Mori T, Ueda M, Shibata T. Evaluation of Anti-glycation Activities of Phlorotannins in Human and Bovine Serum Albumin-glyceraldehyde Models. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The anti-glycation activities of phlorotannins contained in the Japanese Lessoniaceae ( Ecklonia cava, Eck. kurome, Eck. stolonifera, Eisenia arborea, and Eis. bicyclis) were tested using serum albumin-glyceraldehyde (GA) models. In the human serum albumin (HSA)-GA model and the bovine serum albumin (BSA)-GA model, the concentrations of crude phlorotannins at 50% inhibition (IC50) of fluorescent advanced glycation end products (AGEs) formation was in the range of 0.48 to 0.70 mg/mL and 0.52 to 0.75 mg/mL, respectively. In tests using phloroglucinol and purified phlorotannins (eckol, fucofuroeckol A, phlorofucofuroeckol A, dieckol, and 8,8'-bieckol), dieckol had the highest inhibitory activity (IC50: 5.5 × 102 μM) against fluorescent AGEs formation in HSA-GA model and showed about 18 times inhibition compared with aminoguanidine hydrochloride of positive control. In the BSA albumin model, 8,8'-bieckol had about 27 times AGEs formation inhibitory activity (IC50: 6.2 × 102 μM) against aminoguanidine hydrochloride. In tests on GA scavenging activity, it was shown that compounds with phloroglucinol tetramer or higher had a scavenging rate of 70%, or more, with a reaction time of 120 minutes. These results suggest that among the phlorotannins, in particular the dimers of eckol (dieckol and 8,8'-bieckol), there are effective compounds for inhibiting the formation of AGEs derived from GA.
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Affiliation(s)
- Shingo Sugiura
- Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
- Japan Science and Technology Agency, CREST, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Ryosuke Taniguchi
- Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
- Japan Science and Technology Agency, CREST, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Yoshihiko Nishioka
- Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
| | - Ryota Iwase
- Faculty of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
| | - Reiji Tanaka
- Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
- Seaweed Biorefinery Research Center, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
- Japan Science and Technology Agency, CREST, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Hideo Miyake
- Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
- Seaweed Biorefinery Research Center, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
- Japan Science and Technology Agency, CREST, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Tetsushi Mori
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
- Seaweed Biorefinery Research Center, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
- Japan Science and Technology Agency, CREST, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Mitsuyoshi Ueda
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake, Sakyo-ku, Kyoto 606-8502, Japan
- Japan Science and Technology Agency, CREST, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Toshiyuki Shibata
- Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
- Seaweed Biorefinery Research Center, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
- Japan Science and Technology Agency, CREST, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
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