1
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Qiang RR, Xiang Y, Zhang L, Bai XY, Zhang D, Li YJ, Yang YL, Liu XL. Ferroptosis: A new strategy for targeting Alzheimer's disease. Neurochem Int 2024; 178:105773. [PMID: 38789042 DOI: 10.1016/j.neuint.2024.105773] [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: 03/08/2024] [Revised: 05/09/2024] [Accepted: 05/21/2024] [Indexed: 05/26/2024]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by a complex pathogenesis, which involves the formation of amyloid plaques and neurofibrillary tangles. Many recent studies have revealed a close association between ferroptosis and the pathogenesis of AD. Factors such as ferroptosis-associated iron overload, lipid peroxidation, disturbances in redox homeostasis, and accumulation of reactive oxygen species have been found to contribute to the pathological progression of AD. In this review, we explore the mechanisms underlying ferroptosis, describe the link between ferroptosis and AD, and examine the reported efficacy of ferroptosis inhibitors in treating AD. Finally, we discuss the potential challenges to ferroptosis inhibitors use in the clinic, enabling their faster use in clinical treatment.
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Affiliation(s)
| | - Yang Xiang
- College of Physical Education, Yan'an University, Shaanxi, 716000, China
| | - Lei Zhang
- School of Medicine, Yan'an University, Yan'an, China
| | - Xin Yue Bai
- School of Medicine, Yan'an University, Yan'an, China
| | - Die Zhang
- School of Medicine, Yan'an University, Yan'an, China
| | - Yang Jing Li
- School of Medicine, Yan'an University, Yan'an, China
| | - Yan Ling Yang
- School of Medicine, Yan'an University, Yan'an, China
| | - Xiao Long Liu
- School of Medicine, Yan'an University, Yan'an, China.
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2
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Petralla S, Saveleva L, Kanninen KM, Oster JS, Panayotova M, Fricker G, Puris E. Increased Expression of Transferrin Receptor 1 in the Brain Cortex of 5xFAD Mouse Model of Alzheimer's Disease Is Associated with Activation of HIF-1 Signaling Pathway. Mol Neurobiol 2024; 61:6383-6394. [PMID: 38296900 PMCID: PMC11339108 DOI: 10.1007/s12035-024-03990-3] [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: 11/19/2023] [Accepted: 01/24/2024] [Indexed: 02/02/2024]
Abstract
Alzheimer's disease (AD) is the most common cause of dementia. Despite intensive research efforts, there are currently no effective treatments to cure and prevent AD. There is growing evidence that dysregulation of iron homeostasis may contribute to the pathogenesis of AD. Given the important role of the transferrin receptor 1 (TfR1) in regulating iron distribution in the brain, as well as in the drug delivery, we investigated its expression in the brain cortex and isolated brain microvessels from female 8-month-old 5xFAD mice mimicking advanced stage of AD. Moreover, we explored the association between the TfR1 expression and the activation of the HIF-1 signaling pathway, as well as oxidative stress and inflammation in 5xFAD mice. Finally, we studied the impact of Aβ1-40 and Aβ1-42 on TfR1 expression in the brain endothelial cell line hCMEC/D3. In the present study, we revealed that an increase in TfR1 protein levels observed in the brain cortex of 5xFAD mice was associated with activation of the HIF-1 signaling pathway as well as accompanied by oxidative stress and inflammation. Interestingly, incubation of Aβ peptides in hCMEC/D3 cells did not affect the expression of TfR1, which supported our findings of unaltered TfR1 expression in the isolated brain microvessels in 5xFAD mice. In conclusion, the study provides important information about the expression of TfR1 in the 5xFAD mouse model and the potential role of HIF-1 signaling pathway in the regulation of TfR1 in AD, which could represent a promising strategy for the development of therapies for AD.
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Affiliation(s)
- Sabrina Petralla
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University, Im Neuenheimer Feld 329, 69120, Heidelberg, Germany
| | - Liudmila Saveleva
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, 70211, Kuopio, Finland
| | - Katja M Kanninen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, 70211, Kuopio, Finland
| | - Julia S Oster
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University, Im Neuenheimer Feld 329, 69120, Heidelberg, Germany
| | - Maria Panayotova
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University, Im Neuenheimer Feld 329, 69120, Heidelberg, Germany
| | - Gert Fricker
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University, Im Neuenheimer Feld 329, 69120, Heidelberg, Germany
| | - Elena Puris
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University, Im Neuenheimer Feld 329, 69120, Heidelberg, Germany.
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3
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Hobin K, Abou-Zeid L, Mendizabal IB, Van Vrekhem T, Miatton M, D'Haeze B, Scarioni M, Van Langenhove T, Vanhaecke F. Investigation of the concentration and isotopic composition of Cu, Fe and Zn in human biofluids in the context of Alzheimer's disease via tandem and multi-collector inductively coupled plasma-mass spectrometry. J Trace Elem Med Biol 2024; 86:127515. [PMID: 39241488 DOI: 10.1016/j.jtemb.2024.127515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 08/13/2024] [Accepted: 08/28/2024] [Indexed: 09/09/2024]
Abstract
Studies on essential trace elements in the context of Alzheimer's disease (AD) concluded that Cu, Fe and Zn interact with amyloid-β, accelerating plaque formation in the brain. Additionally, Cu and Fe in the vicinity of plaques produce reactive oxygen species (ROS) resulting in oxidative stress, whereas Zn plays a role in the antioxidant defence as a co-factor for antioxidants. In this work, the Cu, Fe and Zn concentrations and isotope ratios were determined in whole blood, blood serum and cerebrospinal fluid of 10 patients diagnosed with AD and 8 control individuals, using tandem (ICP-MS/MS) and multi-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS), respectively. In whole blood and blood serum of AD patients, a heavier Cu isotopic composition was observed (significant for whole blood only) compared to controls. Albumin levels in cerebrospinal fluid tend to increase with age, which could indicate an increased leakiness of the blood-brain barrier. In cerebrospinal fluid, a large variability was observed for the Cu and Fe isotope ratios, potentially resulting from that leakiness at the blood-brain barrier. Therefore, potential effects of AD on the concentration and isotopic composition of essential elements in cerebrospinal fluid related to amyloid-β formation could be hidden. Finally, in blood serum, Zn, urea and creatinine concentrations showed an increase with age and showed a significant difference between sexes.
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Affiliation(s)
- Kasper Hobin
- Atomic & Mass Spectrometry - A&MS Research Unit, Department of Chemistry, Ghent University, Campus Sterre, Krijgslaan 281 - S12, Ghent 9000, Belgium
| | - Lana Abou-Zeid
- Atomic & Mass Spectrometry - A&MS Research Unit, Department of Chemistry, Ghent University, Campus Sterre, Krijgslaan 281 - S12, Ghent 9000, Belgium
| | - Iker Basabe Mendizabal
- Atomic & Mass Spectrometry - A&MS Research Unit, Department of Chemistry, Ghent University, Campus Sterre, Krijgslaan 281 - S12, Ghent 9000, Belgium
| | - Tineke Van Vrekhem
- Cognitive Center, Department of Neurology, Ghent University Hospital, Corneel Heymanslaan 10, Ghent 9000, Belgium
| | - Marijke Miatton
- Cognitive Center, Department of Neurology, Ghent University Hospital, Corneel Heymanslaan 10, Ghent 9000, Belgium
| | - Bregje D'Haeze
- Cognitive Center, Department of Neurology, Ghent University Hospital, Corneel Heymanslaan 10, Ghent 9000, Belgium
| | - Marta Scarioni
- Cognitive Center, Department of Neurology, Ghent University Hospital, Corneel Heymanslaan 10, Ghent 9000, Belgium
| | - Tim Van Langenhove
- Cognitive Center, Department of Neurology, Ghent University Hospital, Corneel Heymanslaan 10, Ghent 9000, Belgium
| | - Frank Vanhaecke
- Atomic & Mass Spectrometry - A&MS Research Unit, Department of Chemistry, Ghent University, Campus Sterre, Krijgslaan 281 - S12, Ghent 9000, Belgium.
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4
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Sun Y, Jiang M, Long X, Miao Y, Du H, Zhang T, Ma X, Zhang Y, Meng H. Transcriptomic Analysis of Lipid Metabolism Genes in Alzheimer's Disease: Highlighting Pathological Outcomes and Compartmentalized Immune Status. J Mol Neurosci 2024; 74:55. [PMID: 38776015 DOI: 10.1007/s12031-024-02225-3] [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: 02/22/2024] [Accepted: 04/15/2024] [Indexed: 07/20/2024]
Abstract
The dysregulation of lipid metabolism has been strongly associated with Alzheimer's disease (AD) and has intricate connections with various aspects of disease progression, such as amyloidogenesis, bioenergetic deficit, oxidative stress, neuroinflammation, and myelin degeneration. Here, a comprehensive bioinformatic assessment was conducted on lipid metabolism genes in the brains and peripheral blood of AD-derived transcriptome datasets, characterizing the correlation between differentially expressed genes (DEGs) of lipid metabolism and disease pathologies, as well as immune cell preferences. Through the application of weighted gene co-expression network analysis (WGCNA), modules eigengenes related to lipid metabolism were pinpointed, and the examination of their molecular functions within biological processes, molecular pathways, and their associations with pathological phenotypes and molecular networks has been characterized. Analysis of biological networks indicates notable discrepancies in the expression patterns of the DEGs between neuronal and immune cells, as well as variations in cell type enrichments within both brain tissue and peripheral blood. Additionally, drugs targeting the DEGs from central and peripheral and a diagnostic model for hub genes from the blood were retrieved and assessed, some of which were shown to be useful for therapeutic and diagnostic. These results revealed the distinctive pattern of transcriptionally abnormal lipid metabolism in central, peripheral, and immune cell activation, providing valuable insight into lipid metabolism for diagnosing and guiding more effective treatment for AD.
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Affiliation(s)
- Yue Sun
- Department of Neurology, Shanghai East Hospital of Tongji University School of Medicine, Shanghai, 20092, People's Republic of China
| | - Mengni Jiang
- Institute of Neuroscience, Soochow University, Suzhou, 215123, People's Republic of China
| | - Xiang Long
- Institute of Neuroscience, Soochow University, Suzhou, 215123, People's Republic of China
| | - Yongzhen Miao
- Institute of Neuroscience, Soochow University, Suzhou, 215123, People's Republic of China
| | - Huanhuan Du
- Institute of Neuroscience, Soochow University, Suzhou, 215123, People's Republic of China
| | - Ting Zhang
- Institute of Neuroscience, Soochow University, Suzhou, 215123, People's Republic of China
| | - Xuejun Ma
- School of Mathematical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Yue Zhang
- Department of Neurology, Shanghai East Hospital of Tongji University School of Medicine, Shanghai, 20092, People's Republic of China.
| | - Hongrui Meng
- Institute of Neuroscience, Soochow University, Suzhou, 215123, People's Republic of China.
- Department of Neurology and Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.
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5
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Lahoud E, Moynier F, Luu TH, Mahan B, Borgne ML. Impact of aging on copper isotopic composition in the murine brain. Metallomics 2024; 16:mfae008. [PMID: 38289854 DOI: 10.1093/mtomcs/mfae008] [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: 07/07/2023] [Accepted: 01/29/2024] [Indexed: 02/01/2024]
Abstract
Aging is the main risk factor for Alzheimer's disease (AD). AD is linked to alterations in metal homeostasis and changes in stable metal isotopic composition can occur, possibly allowing the latter to serve as relevant biomarkers for potential AD diagnosis. Copper stable isotopes are used to investigate changes in Cu homeostasis associated with various diseases. Prior work has shown that in AD mouse models, the accumulation of 63Cu in the brain is associated with the disease's progression. However, our understanding of how the normal aging process influences the brain's isotopic composition of copper remains limited. In order to determine the utility and predictive power of Cu isotopes in AD diagnostics, we aim-in this study-to develop a baseline trajectory of Cu isotopic composition in the normally aging mouse brain. We determined the copper concentration and isotopic composition in brains of 30 healthy mice (WT) ranging in age from 6 to 12 mo, and further incorporate prior data obtained for 3-mo-old healthy mice; this range approximately equates to 20-50 yr in human equivalency. A significant 65Cu enrichment has been observed in the 12-mo-old mice compared to the youngest group, concomitant with an increase in Cu concentration with age. Meanwhile, literature data for brains of AD mice display an enrichment in 63Cu isotope compared to WT. It is acutely important that this baseline enrichment in 65Cu is fully constrained and normalized against if any coherent diagnostic observations regarding 63Cu enrichment as a biomarker for AD are to be developed.
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Affiliation(s)
- Esther Lahoud
- Université Paris Cité, Institut de Physique du Globe de Paris, 1 rue Jussieu 75005, Paris, France
| | - Frédéric Moynier
- Université Paris Cité, Institut de Physique du Globe de Paris, 1 rue Jussieu 75005, Paris, France
| | - Tu-Han Luu
- Université Paris Cité, Institut de Physique du Globe de Paris, 1 rue Jussieu 75005, Paris, France
| | - Brandon Mahan
- School of Geography, Earth and Atmospheric Sciences, The University of Melbourne, Melbourne, Australia
| | - Marie Le Borgne
- Université Paris Cité, LVTS, Inserm U1148, F-75018, Paris, France
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6
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Mitroshina EV, Vedunova MV. The Role of Oxygen Homeostasis and the HIF-1 Factor in the Development of Neurodegeneration. Int J Mol Sci 2024; 25:4581. [PMID: 38731800 PMCID: PMC11083463 DOI: 10.3390/ijms25094581] [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: 03/13/2024] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 05/13/2024] Open
Abstract
Understanding the molecular underpinnings of neurodegeneration processes is a pressing challenge for medicine and neurobiology. Alzheimer's disease (AD) and Parkinson's disease (PD) represent the most prevalent forms of neurodegeneration. To date, a substantial body of experimental evidence has strongly implicated hypoxia in the pathogenesis of numerous neurological disorders, including AD, PD, and other age-related neurodegenerative conditions. Hypoxia-inducible factor (HIF) is a transcription factor that triggers a cell survival program in conditions of oxygen deprivation. The involvement of HIF-1α in neurodegenerative processes presents a complex and sometimes contradictory picture. This review aims to elucidate the current understanding of the interplay between hypoxia and the development of AD and PD, assess the involvement of HIF-1 in their pathogenesis, and summarize promising therapeutic approaches centered on modulating the activity of the HIF-1 complex.
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Affiliation(s)
- Elena V. Mitroshina
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603022 Nizhny Novgorod, Russia;
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Guarnieri L, Bosco F, Leo A, Citraro R, Palma E, De Sarro G, Mollace V. Impact of micronutrients and nutraceuticals on cognitive function and performance in Alzheimer's disease. Ageing Res Rev 2024; 95:102210. [PMID: 38296163 DOI: 10.1016/j.arr.2024.102210] [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: 07/31/2023] [Revised: 01/10/2024] [Accepted: 01/25/2024] [Indexed: 02/13/2024]
Abstract
Alzheimer's disease (AD) is a major global health problem today and is the most common form of dementia. AD is characterized by the formation of β-amyloid (Aβ) plaques and neurofibrillary clusters, leading to decreased brain acetylcholine levels in the brain. Another mechanism underlying the pathogenesis of AD is the abnormal phosphorylation of tau protein that accumulates at the level of neurofibrillary aggregates, and the areas most affected by this pathological process are usually the cholinergic neurons in cortical, subcortical, and hippocampal areas. These effects result in decreased cognitive function, brain atrophy, and neuronal death. Malnutrition and weight loss are the most frequent manifestations of AD, and these are also associated with greater cognitive decline. Several studies have confirmed that a balanced low-calorie diet and proper nutritional intake may be considered important factors in counteracting or slowing the progression of AD, whereas a high-fat or hypercholesterolemic diet predisposes to an increased risk of developing AD. Especially, fruits, vegetables, antioxidants, vitamins, polyunsaturated fatty acids, and micronutrients supplementation exert positive effects on aging-related changes in the brain due to their antioxidant, anti-inflammatory, and radical scavenging properties. The purpose of this review is to summarize some possible nutritional factors that may contribute to the progression or prevention of AD, understand the role that nutrition plays in the formation of Aβ plaques typical of this neurodegenerative disease, to identify some potential therapeutic strategies that may involve some natural compounds, in delaying the progression of the disease.
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Affiliation(s)
- Lorenza Guarnieri
- Section of Pharmacology, Science of Health Department, School of Medicine, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy
| | - Francesca Bosco
- Section of Pharmacology, Science of Health Department, School of Medicine, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy.
| | - Antonio Leo
- Section of Pharmacology, Science of Health Department, School of Medicine, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy; Research Center FAS@UMG, Department of Health Science, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy
| | - Rita Citraro
- Section of Pharmacology, Science of Health Department, School of Medicine, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy; Research Center FAS@UMG, Department of Health Science, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy
| | - Ernesto Palma
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Giovambattista De Sarro
- Section of Pharmacology, Science of Health Department, School of Medicine, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy; Research Center FAS@UMG, Department of Health Science, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy
| | - Vincenzo Mollace
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
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8
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Scolari Grotto F, Glaser V. Are high copper levels related to Alzheimer's and Parkinson's diseases? A systematic review and meta-analysis of articles published between 2011 and 2022. Biometals 2024; 37:3-22. [PMID: 37594582 DOI: 10.1007/s10534-023-00530-9] [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: 06/01/2023] [Accepted: 08/07/2023] [Indexed: 08/19/2023]
Abstract
Copper performs an important role in the brain, but in high levels it can be neurotoxic. Further, some authors have described that copper dyshomeostasis could be related with neurodegenerative diseases. Thus, this review was performed to observe whether high copper levels are related to Alzheimer's and Parkinson's diseases (AD and PD), using the literature published recently. Articles that measured copper levels in AD or PD patients was included, as well as they that measured copper levels in models used to mimic these diseases. Also, results about high copper levels effects and its relationship with AD and PD observed in laboratory animals are considered. In summary, 38 and 24 articles with AD and PD patients were included, respectively. Despite of the heterogeneity between the studies in humans, meta-analysis has demonstrated that there is an increase in free and total copper levels in the blood of AD patients compared to controls, and a decrease in copper levels in PD patients. A decrease in the metal content in postmortem brain tissue was observed in AD and PD. In manuscripts using animal models that mimic AD and PD, it was included seven and three articles, respectively. Two of them have reported an increase in copper concentrations in AD model, and one in PD model. Finally, studies with laboratory animals have concluded that high copper levels are related to oxidative stress, neuroinflammation, mitochondrial dysfunction, changes in neurotransmitter levels, cell death, and reduced both cognitive and locomotor activity, which are also described in AD or PD.
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Affiliation(s)
- Fabielly Scolari Grotto
- Cell Biology Lab, Biological and Agronomic Sciences Department, Federal University of Santa Catarina, Rodovia Ulysses Gaboardi, Km3, Curitibanos, SC, Brazil
| | - Viviane Glaser
- Cell Biology Lab, Biological and Agronomic Sciences Department, Federal University of Santa Catarina, Rodovia Ulysses Gaboardi, Km3, Curitibanos, SC, Brazil.
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9
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Selden CR, Schilling K, Godfrey L, Yee N. Metal-binding amino acid ligands commonly found in metalloproteins differentially fractionate copper isotopes. Sci Rep 2024; 14:1902. [PMID: 38253574 PMCID: PMC11229503 DOI: 10.1038/s41598-024-52091-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 01/13/2024] [Indexed: 01/24/2024] Open
Abstract
Copper (Cu) is a cofactor in numerous key proteins and, thus, an essential element for life. In biological systems, Cu isotope abundances shift with metabolic and homeostatic state. However, the mechanisms underpinning these isotopic shifts remain poorly understood, hampering use of Cu isotopes as biomarkers. Computational predictions suggest that isotope fractionation occurs when proteins bind Cu, with the magnitude of this effect dependent on the identity and arrangement of the coordinating amino acids. This study sought to constrain equilibrium isotope fractionation values for Cu bound by common amino acids at protein metal-binding sites. Free and bound metal ions were separated via Donnan dialysis using a cation-permeable membrane. Isotope ratios of pre- and post-dialysis solutions were measured by MC-ICP-MS following purification. Sulfur ligands (cysteine) preferentially bound the light isotope (63Cu) relative to water (Δ65Cucomplex-free = - 0.48 ± 0.18‰) while oxygen ligands favored the heavy isotope (65Cu; + 0.26 ± 0.04‰ for glutamate and + 0.16 ± 0.10‰ for aspartate). Binding by nitrogen ligands (histidine) imparted no isotope effect (- 0.01 ± 0.04‰). This experimental work unequivocally demonstrates that amino acids differentially fractionate Cu isotopes and supports the hypothesis that metalloprotein biosynthesis affects the distribution of transition metal isotopes in biological systems.
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Affiliation(s)
- Corday R Selden
- Department of Marine and Coastal Sciences, Rutgers, University, New Brunswick, NJ, USA.
- Department of Earth and Planetary Sciences, Rutgers University, Piscataway, NJ, USA.
| | - Kathrin Schilling
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA.
| | - Linda Godfrey
- Department of Earth and Planetary Sciences, Rutgers University, Piscataway, NJ, USA
| | - Nathan Yee
- Department of Earth and Planetary Sciences, Rutgers University, Piscataway, NJ, USA
- Department of Environmental Sciences, Rutgers University, New Brunswick, NJ, USA
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10
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Gong L, Sun J, Cong S. Levels of iron and iron-related proteins in Alzheimer's disease: A systematic review and meta-analysis. J Trace Elem Med Biol 2023; 80:127304. [PMID: 37734209 DOI: 10.1016/j.jtemb.2023.127304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/06/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND AND PURPOSE Iron homeostasis disturbance has been suggested to play a role in the pathology of Alzheimer's disease (AD). Systemic iron levels are regulated by iron-related proteins, such as ferritin and transferrin. This meta-analysis was established to evaluate iron and iron-related proteins (ferritin, transferrin, lactoferrin, haptoglobin, hepcidin) in cerebrospinal fluid (CSF) and blood samples of AD patients compared with those in healthy controls (HCs). METHODS Iron and iron-related proteins in Alzheimer's disease was systematically searched within five databases (PubMed, EMBASE, Web of Science, Cochrane, Scopus) up to October 23, 2022. Fifty-four studies (with data for 5105 participants: 2174 AD patients and 2931 HCs) were included in this meta-analysis. This study was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA), applying Stata 14.0 software. RESULTS Decreased iron in blood and increased ferritin in CSF were found in AD patients compared with the levels in HCs. AD patients also exhibited lower lactoferrin in serum. Other variables (iron in CSF, ferritin in blood, transferrin in CSF/blood, haptoglobin in CSF/blood, and hepcidin in blood) did not differ between the groups. CONCLUSION This meta-analysis indicated that iron and iron-related proteins were associated with the risk of AD, suggesting the value of further exploration of iron imbalance in AD using biofluids.
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Affiliation(s)
- Lin Gong
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, PR China
| | - Jiahui Sun
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, PR China
| | - Shuyan Cong
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, PR China.
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11
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Solovyev N, Lucio M, Mandrioli J, Forcisi S, Kanawati B, Uhl J, Vinceti M, Schmitt-Kopplin P, Michalke B. Interplay of Metallome and Metabolome in Amyotrophic Lateral Sclerosis: A Study on Cerebrospinal Fluid of Patients Carrying Disease-Related Gene Mutations. ACS Chem Neurosci 2023; 14:3035-3046. [PMID: 37608584 PMCID: PMC10485893 DOI: 10.1021/acschemneuro.3c00128] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 08/09/2023] [Indexed: 08/24/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a lethal progressive neurodegenerative disease, characterized by a loss of function of upper and lower motor neurons. This study aimed to explore probable pathological alterations occurring in individuals with ALS compared to neurologically healthy controls through the analysis of cerebrospinal fluid (CSF), a medium, which directly interacts with brain parenchyma. A total of 7 ALS patients with disease-associated mutations (ATXN2, C9ORF72, FUS, SOD1, and TARDBP) and 13 controls were included in the study. Multiple analytical approaches were employed, including metabolomic and metallomics profiling, as well as genetic screening, using CSF samples obtained from the brain compartment. Data analysis involved the application of multivariate statistical methods. Advanced hyphenated selenium and redox metal (iron, copper, and manganese) speciation techniques and nontargeted Fourier transform ion cyclotron resonance mass spectrometry-based metabolomics were used for data acquisition. Nontargeted metabolomics showed reduced steroids, including sex hormones; additionally, copper and manganese species were found to be the most relevant features for ALS patients. This indicates a potential alteration of sex hormone pathways in the ALS-affected brain, as reflected in the CSF.
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Affiliation(s)
- Nikolay Solovyev
- Analytical
BioGeoChemistry Research Unit, Helmholtz
Center Munich—German Research Center for Environmental Health
GmbH, Ingolstädter
Landstr. 1, 85764 Neuherberg, Germany
| | - Marianna Lucio
- Analytical
BioGeoChemistry Research Unit, Helmholtz
Center Munich—German Research Center for Environmental Health
GmbH, Ingolstädter
Landstr. 1, 85764 Neuherberg, Germany
| | - Jessica Mandrioli
- Department
of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
- Department
of Neurosciences, Azienda Ospedaliero Universitaria
di Modena, 41126 Modena, Italy
| | - Sara Forcisi
- Analytical
BioGeoChemistry Research Unit, Helmholtz
Center Munich—German Research Center for Environmental Health
GmbH, Ingolstädter
Landstr. 1, 85764 Neuherberg, Germany
| | - Basem Kanawati
- Analytical
BioGeoChemistry Research Unit, Helmholtz
Center Munich—German Research Center for Environmental Health
GmbH, Ingolstädter
Landstr. 1, 85764 Neuherberg, Germany
| | - Jenny Uhl
- Analytical
BioGeoChemistry Research Unit, Helmholtz
Center Munich—German Research Center for Environmental Health
GmbH, Ingolstädter
Landstr. 1, 85764 Neuherberg, Germany
| | - Marco Vinceti
- CREAGEN
Research Center of Environmental, Genetic and Nutritional Epidemiology,
Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Philippe Schmitt-Kopplin
- Analytical
BioGeoChemistry Research Unit, Helmholtz
Center Munich—German Research Center for Environmental Health
GmbH, Ingolstädter
Landstr. 1, 85764 Neuherberg, Germany
| | - Bernhard Michalke
- Analytical
BioGeoChemistry Research Unit, Helmholtz
Center Munich—German Research Center for Environmental Health
GmbH, Ingolstädter
Landstr. 1, 85764 Neuherberg, Germany
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12
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Hobin K, Costas-Rodríguez M, Van Wonterghem E, Vandenbroucke RE, Vanhaecke F. Alzheimer's Disease and Age-Related Changes in the Cu Isotopic Composition of Blood Plasma and Brain Tissues of the APP NL-G-F Murine Model Revealed by Multi-Collector ICP-Mass Spectrometry. BIOLOGY 2023; 12:857. [PMID: 37372142 DOI: 10.3390/biology12060857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/08/2023] [Accepted: 06/11/2023] [Indexed: 06/29/2023]
Abstract
Alzheimer's' disease (AD) is characterized by the formation of β-amyloid (Aβ) plaques and neurofibrillary tangles of tau protein in the brain. Aβ plaques are formed by the cleavage of the β-amyloid precursor protein (APP). In addition to protein aggregations, the metabolism of the essential mineral element Cu is also altered during the pathogenesis of AD. The concentration and the natural isotopic composition of Cu were investigated in blood plasma and multiple brain regions (brain stem, cerebellum, cortex, and hippocampus) of young (3-4 weeks) and aged (27-30 weeks) APPNL-G-F knock-in mice and wild-type controls to assess potential alterations associated with ageing and AD. Tandem inductively coupled plasma-mass spectrometry (ICP-MS/MS) was used for elemental analysis and multi-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS) for high-precision isotopic analysis. The blood plasma Cu concentration was significantly altered in response to both age- and AD-related effects, whereas the blood plasma Cu isotope ratio was only affected by the development of AD. Changes in the Cu isotopic signature of the cerebellum were significantly correlated with the changes observed in blood plasma. The brain stem showed a significant increase in Cu concentration for both young and aged AD transgenic mice compared with healthy controls, whereas the Cu isotopic signature became lighter as a result of age-related changes. In this work, ICP-MS/MS and MC-ICP-MS provided relevant and complementary information on the potential role of Cu in ageing and AD.
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Affiliation(s)
- Kasper Hobin
- Atomic & Mass Spectrometry-A&MS Research Unit, Department of Chemistry, Ghent University, 9000 Ghent, Belgium
| | - Marta Costas-Rodríguez
- Atomic & Mass Spectrometry-A&MS Research Unit, Department of Chemistry, Ghent University, 9000 Ghent, Belgium
- Centro de Investigación Mariña, Universidade de Vigo, Departamento de Química Analítica y Alimentaria, Grupo QA2, 36310 Vigo, Spain
| | - Elien Van Wonterghem
- Barriers in Inflammation Lab, VIB Center for Inflammation Research, 9000 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Roosmarijn E Vandenbroucke
- Barriers in Inflammation Lab, VIB Center for Inflammation Research, 9000 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Frank Vanhaecke
- Atomic & Mass Spectrometry-A&MS Research Unit, Department of Chemistry, Ghent University, 9000 Ghent, Belgium
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13
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Tomita N, Hotta Y, Ito H, Naiki-Ito A, Matsuta K, Yamamoto Y, Ohashi K, Hayakawa T, Sanagawa A, Horita Y, Kondo M, Kataoka T, Takahashi S, Sobue K, Kimura K. High preoperative serum strontium levels increase the risk of acute kidney injury after cardiopulmonary bypass. Clin Exp Nephrol 2023; 27:382-391. [PMID: 36689033 DOI: 10.1007/s10157-022-02314-w] [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: 06/09/2022] [Accepted: 12/26/2022] [Indexed: 01/24/2023]
Abstract
BACKGROUND Acute kidney injury (AKI) is a common complication of cardiac surgeries. The incidence of AKI after cardiac surgeries using cardiopulmonary bypass (CPB-AKI) is high, emphasizing the need to determine strategies to prevent CPB-AKI. This study investigates the correlation between CPB-AKI and trace metal levels in clinical and animal studies. METHODS Samples and clinical data were obtained from 74 patients from the Nagoya City University Hospital and Okazaki City Hospital. Blood samples were collected before, immediately after, and 2 h after CPB withdrawal. Trace metal levels were measured using inductively coupled plasma mass spectrometry. Sr or vehicle treatment was orally administered to the rats to determine if Sr was associated with CPB-AKI. After the treatment, ischemia-reperfusion (IR) injury was induced, and serum creatinine (SCr) and blood urea nitrogen (BUN) levels were measured. RESULTS In this clinical study, the incidence of CPB-AKI was found to be 28% (21/74). The body mass index and estimated glomerular filtration rate were significantly different in patients with AKI. The intensive care unit and hospital stay were longer in AKI patients than in non-AKI patients. The Na, Fe, and Sr levels were significantly higher in AKI patients before CPB. Also, Fe and Sr were higher immediately after CPB withdrawal, and Sr was higher 2 h after CPB withdrawal in AKI patients. Animal studies showed that Sr-treated rats had significantly increased SCr and BUN levels than vehicle-treated rats at 24 h post-IR injury. CONCLUSIONS High preoperative serum Sr levels may be associated with CPB-AKI.
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Affiliation(s)
- Natsumi Tomita
- Department of Hospital Pharmacy, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe Do-Ri, Mizuho-Ku, Nagoya, 467-8603, Japan
| | - Yuji Hotta
- Department of Hospital Pharmacy, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe Do-Ri, Mizuho-Ku, Nagoya, 467-8603, Japan.
- Department of Pharmacy, Nagoya City University Hospital, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan.
| | - Hidekazu Ito
- Department of Anesthesiology and Intensive Care Medicine, Graduate School of Medical Sciences, Nagoya City University, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
- Okazaki City Hospital, 3-1, Goshoai, Kouryuji-Cho, Okazaki, 444-8553, Japan
| | - Aya Naiki-Ito
- Department of Experimental Pathology and Tumor Biology, Graduate School of Medical Sciences, Nagoya City University, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
| | - Karin Matsuta
- Department of Hospital Pharmacy, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe Do-Ri, Mizuho-Ku, Nagoya, 467-8603, Japan
| | - Yuko Yamamoto
- Department of Hospital Pharmacy, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe Do-Ri, Mizuho-Ku, Nagoya, 467-8603, Japan
- Department of Analytical Chemistry, Aichi Prefectural Institute of Public Health, 7-6, Nagare, Tsuji-Machi, Kita-Ku, Nagoya, 462-8576, Japan
| | - Kazuki Ohashi
- Department of Pharmacy, Nagoya City University Hospital, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
| | - Tomoaki Hayakawa
- Department of Pharmacy, Nagoya City University Hospital, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
| | - Akimasa Sanagawa
- Department of Hospital Pharmacy, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe Do-Ri, Mizuho-Ku, Nagoya, 467-8603, Japan
- Department of Pharmacy, Nagoya City University Hospital, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
| | - Yasuhiro Horita
- Department of Pharmacy, Nagoya City University Hospital, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
- Department of Clinical Pharmaceutics, Graduate School of Medical Sciences, Nagoya City University, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
| | - Masahiro Kondo
- Department of Pharmacy, Nagoya City University Hospital, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
| | - Tomoya Kataoka
- Department of Clinical Pharmaceutics, Graduate School of Medical Sciences, Nagoya City University, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
| | - Satoru Takahashi
- Department of Experimental Pathology and Tumor Biology, Graduate School of Medical Sciences, Nagoya City University, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
| | - Kazuya Sobue
- Department of Anesthesiology and Intensive Care Medicine, Graduate School of Medical Sciences, Nagoya City University, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
| | - Kazunori Kimura
- Department of Hospital Pharmacy, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe Do-Ri, Mizuho-Ku, Nagoya, 467-8603, Japan
- Department of Pharmacy, Nagoya City University Hospital, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
- Department of Clinical Pharmaceutics, Graduate School of Medical Sciences, Nagoya City University, 1-Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya, 467-8601, Japan
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14
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Chen CC, Lin WQ, Wen YW, Wang SY, Yin HJ, Li JY, Ni CL, Liu W. A solid state Ag(I) complex with excellent stability, luminescent and sensing properties. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Tran D, DiGiacomo P, Born DE, Georgiadis M, Zeineh M. Iron and Alzheimer's Disease: From Pathology to Imaging. Front Hum Neurosci 2022; 16:838692. [PMID: 35911597 PMCID: PMC9327617 DOI: 10.3389/fnhum.2022.838692] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 05/09/2022] [Indexed: 12/12/2022] Open
Abstract
Alzheimer's disease (AD) is a debilitating brain disorder that afflicts millions worldwide with no effective treatment. Currently, AD progression has primarily been characterized by abnormal accumulations of β-amyloid within plaques and phosphorylated tau within neurofibrillary tangles, giving rise to neurodegeneration due to synaptic and neuronal loss. While β-amyloid and tau deposition are required for clinical diagnosis of AD, presence of such abnormalities does not tell the complete story, and the actual mechanisms behind neurodegeneration in AD progression are still not well understood. Support for abnormal iron accumulation playing a role in AD pathogenesis includes its presence in the early stages of the disease, its interactions with β-amyloid and tau, and the important role it plays in AD related inflammation. In this review, we present the existing evidence of pathological iron accumulation in the human AD brain, as well as discuss the imaging tools and peripheral measures available to characterize iron accumulation and dysregulation in AD, which may help in developing iron-based biomarkers or therapeutic targets for the disease.
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Affiliation(s)
- Dean Tran
- Department of Radiology, Stanford School of Medicine, Stanford, CA, United States
| | - Phillip DiGiacomo
- Department of Radiology, Stanford School of Medicine, Stanford, CA, United States
| | - Donald E. Born
- Department of Pathology, Stanford School of Medicine, Stanford, CA, United States
| | - Marios Georgiadis
- Department of Radiology, Stanford School of Medicine, Stanford, CA, United States
| | - Michael Zeineh
- Department of Radiology, Stanford School of Medicine, Stanford, CA, United States
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16
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Hobin K, Costas-Rodríguez M, Van Wonterghem E, Vandenbroucke RE, Vanhaecke F. High-Precision Isotopic Analysis of Cu and Fe via Multi-Collector Inductively Coupled Plasma-Mass Spectrometry Reveals Lipopolysaccharide-Induced Inflammatory Effects in Blood Plasma and Brain Tissues. Front Chem 2022; 10:896279. [PMID: 35783204 PMCID: PMC9241339 DOI: 10.3389/fchem.2022.896279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
The concentration and the isotopic composition of the redox-active essential elements Cu and Fe were investigated in blood plasma and specific brain regions (hippocampus, cortex, brain stem and cerebellum) of mice to assess potential alterations associated with sepsis-associated encephalopathy induced by lipopolysaccharide (LPS) administration. Samples were collected from young (16-22 weeks) and aged (44-65 weeks) mice after intraperitoneal injection of the LPS, an endotoxin inducing neuroinflammation, and from age- and sex-matched controls, injected with phosphate-buffered saline solution. Sector-field single-collector inductively coupled plasma-mass spectrometry was relied upon for elemental analysis and multi-collector inductively coupled plasma-mass spectrometry for isotopic analysis. Significant variations were observed for the Cu concentration and for the Cu and Fe isotope ratios in the blood plasma. Concentrations and isotope ratios of Cu and Fe also varied across the brain tissues. An age- and an inflammatory-related effect was found affecting the isotopic compositions of blood plasma Cu and cerebellum Fe, whereas a regional Cu isotopic redistribution was found within the brain tissues. These findings demonstrate that isotopic analysis of essential mineral elements picks up metabolic changes not revealed by element quantification, making the two approaches complementary.
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Affiliation(s)
- Kasper Hobin
- Atomic and Mass Spectrometry - A&MS Research Unit, Department of Chemistry, Ghent University, Ghent, Belgium
| | - Marta Costas-Rodríguez
- Atomic and Mass Spectrometry - A&MS Research Unit, Department of Chemistry, Ghent University, Ghent, Belgium
| | - Elien Van Wonterghem
- Barriers in Inflammation Lab, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Roosmarijn E Vandenbroucke
- Barriers in Inflammation Lab, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Frank Vanhaecke
- Atomic and Mass Spectrometry - A&MS Research Unit, Department of Chemistry, Ghent University, Ghent, Belgium
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17
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Paquet M, Fujii T, Moynier F. Copper isotope composition of hemocyanin. J Trace Elem Med Biol 2022; 71:126967. [PMID: 35259616 DOI: 10.1016/j.jtemb.2022.126967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/22/2022] [Accepted: 02/25/2022] [Indexed: 10/19/2022]
Abstract
BACKGROUND Copper is a metal that plays a central role in biology, for example, as co-factor in various redox enzymes. Its stable isotopic composition is being used as tracer of its transport in living organisms and as a biomarker for diseases affecting its homeostasis. While the application of copper stable isotopes to biological studies is a growing field, there are presently no biological standards that are systematically analyzed in the different laboratories, as it is the case for geological samples (e.g., by using widely available basalt samples). It is therefore paramount for the community to establish such standard. Copper also binds oxygen in the respiratory protein, hemocyanin, in the hemolymph of mollusks and arthropods and is thus critical to respiration for these species. METHODS Here, the Cu isotope composition of hemocyanin of different modern species of mollusks and arthropods (Megathura crenulate Keyhole limpet, Limulus polyphemus Horseshoe crab and Concholepas concholepas Chilean abalone), as well as theoretical constraints on the origin of these isotopic fractionations through ab initio calculations are reported. RESULTS The isotopic fractionation factors for Cu(I) and Cu(II), both in hemocyanin and in seawater, predict an enrichment in the lighter isotope of Cu in the hemocyanin by over 1 permil compared to seawater. The hemocyanin of Chilean abalone and Horseshoe crab have Cu isotope compositions (δ65Cu = +0.63 ± 0.04‰ and +0.61 ± 0.04‰, respectively, with δ65Cu the permil deviation of the 65Cu/63Cu ratio from the NIST SRM 976 standard), similar to that of the octopus reported in literature (+0.62‰), that are undistinguishable from seawater, suggesting quantitative Cu absorption for these organisms. Conversely, the Keyhole limpet is enriched in the lighter isotope of Cu, which is in line with the ab initio calculation and therefore Cu isotopic fractionation during incorporation of Cu into the hemocyanin. CONCLUSIONS Because these hemocyanin standard samples are widely available, they could serve in the future as inter-laboratory standards to verify the accuracy of the Cu isotopic measurements on biological matrices.
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Affiliation(s)
- Marine Paquet
- Université de Paris, Institut de Physique du Globe de Paris, CNRS, UMR 7154, 75005 Paris, France.
| | - Toshiyuki Fujii
- Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Frédéric Moynier
- Université de Paris, Institut de Physique du Globe de Paris, CNRS, UMR 7154, 75005 Paris, France
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18
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Lai C, Chen Z, Ding Y, Chen Q, Su S, Liu H, Ni R, Tang Z. Rapamycin Attenuated Zinc-Induced Tau Phosphorylation and Oxidative Stress in Rats: Involvement of Dual mTOR/p70S6K and Nrf2/HO-1 Pathways. Front Immunol 2022; 13:782434. [PMID: 35197970 PMCID: PMC8858937 DOI: 10.3389/fimmu.2022.782434] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 01/13/2022] [Indexed: 01/01/2023] Open
Abstract
Alzheimer's disease is pathologically characterized by abnormal accumulation of amyloid-beta plaques, neurofibrillary tangles, oxidative stress, neuroinflammation, and neurodegeneration. Metal dysregulation, including excessive zinc released by presynaptic neurons, plays an important role in tau pathology and oxidase activation. The activities of mammalian target of rapamycin (mTOR)/ribosomal S6 protein kinase (p70S6K) are elevated in the brains of patients with Alzheimer's disease. Zinc induces tau hyperphosphorylation via mTOR/P70S6K activation in vitro. However, the involvement of the mTOR/P70S6K pathway in zinc-induced oxidative stress, tau degeneration, and synaptic and cognitive impairment has not been fully elucidated in vivo. Here, we assessed the effect of pathological zinc concentrations in SH-SY5Y cells by using biochemical assays and immunofluorescence staining. Rats (n = 18, male) were laterally ventricularly injected with zinc, treated with rapamycin (intraperitoneal injection) for 1 week, and assessed using the Morris water maze. Evaluation of oxidative stress, tau phosphorylation, and synaptic impairment was performed using the hippocampal tissue of the rats by biochemical assays and immunofluorescence staining. The results from the Morris water maze showed that the capacity of spatial memory was impaired in zinc-treated rats. Zinc sulfate significantly increased the levels of P-mTOR Ser2448, P-p70S6K Thr389, and P-tau Ser356 and decreased the levels of nuclear factor erythroid 2-related factor-2 (Nrf2) and heme oxygenase-1 (HO-1) in SH-SY5Y cells and in zinc-treated rats compared with the control groups. Increased expression of reactive oxygen species was observed in zinc sulfate-induced SH-SY5Y cells and in the hippocampus of zinc-injected rats. Rapamycin, an inhibitor of mTOR, rescued zinc-induced increases in mTOR/p70S6K activation, tau phosphorylation, and oxidative stress, and Nrf2/HO-1 inactivation, cognitive impairment, and synaptic impairment reduced the expression of synapse-related proteins in zinc-injected rats. In conclusion, our findings imply that rapamycin prevents zinc-induced cognitive impairment and protects neurons from tau pathology, oxidative stress, and synaptic impairment by decreasing mTOR/p70S6K hyperactivity and increasing Nrf2/HO-1 activity.
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Affiliation(s)
- Chencen Lai
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, China
- Department of Nosocomial Infection, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Zhuyi Chen
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, China
| | - Yuanting Ding
- Department of Nosocomial Infection, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Qian Chen
- Department of Nosocomial Infection, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Songbai Su
- Department of Nosocomial Infection, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Heng Liu
- Department of Anesthesiology, Tongren Municipal People’s Hospital, Tongren, China
| | - Ruiqing Ni
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
- Institute for Biomedical Engineering, Eidgenössische Technische Hochschule Zürich (ETH) and University of Zurich, Zurich, Switzerland
| | - Zhi Tang
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, China
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19
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Araújo DF, Knoery J, Briant N, Vigier N, Ponzevera E. "Non-traditional" stable isotopes applied to the study of trace metal contaminants in anthropized marine environments. MARINE POLLUTION BULLETIN 2022; 175:113398. [PMID: 35114550 DOI: 10.1016/j.marpolbul.2022.113398] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
The advent of Multicollector ICP-MS inaugurated the analysis of new metal isotope systems, the so-called "non-traditional" isotopes. They are now available tools to study geochemical and ecotoxicological aspects of marine metal contamination and hence, to push the frontiers of our knowledge. However, such applications are still in their infancy, and an accessible state-of-the-art describing main applications, obstacles, gaps, and directions for further development was missing from the literature. This paper fills this gap and aims to encourage the marine scientific community to explore the contributions of this newly available information for the fields of chemical risk assessment, biomonitoring, and trophic transfer of metal contaminants. In the current "Anthropocene" epoch, metal contamination will continue to threaten marine aquatic ecosystems, and "non-traditional" isotopes can be a valuable tool to detect human-induced changes across time-space involving metal contaminants, and their interaction with marine biota.
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Affiliation(s)
| | | | | | - Nathalie Vigier
- Laboratoire d'Océanographie de Villefranche sur Mer (LOV), IMEV, CNRS, Sorbonne Université, France
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20
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Schilling K, Harris AL, Halliday AN, Schofield CJ, Sheldon H, Haider S, Larner F. Investigations on Zinc Isotope Fractionation in Breast Cancer Tissue Using in vitro Cell Culture Uptake-Efflux Experiments. Front Med (Lausanne) 2022; 8:746532. [PMID: 35127740 PMCID: PMC8811157 DOI: 10.3389/fmed.2021.746532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 12/14/2021] [Indexed: 12/24/2022] Open
Abstract
Zinc (Zn) accumulates in breast cancer tumors compared to adjacent healthy tissue. Clinical samples of breast cancer tissue show light Zn isotopic compositions (δ66Zn) relative to healthy tissue. The underlying mechanisms causing such effects are unknown. To investigate if the isotopic discrimination observed for in vivo breast cancer tissue samples can be reproduced in vitro, we report isotopic data for Zn uptake-efflux experiments using a human breast cancer cell line. MDA-MB-231 cell line was used as a model for triple receptor negative breast cancer. We determined Zn isotope fractionation for Zn cell uptake (Δ66Znuptake) and cell efflux (Δ66Znefflux) using a drip-flow reactor to enable comparison with the in vivo environment. The MDA-MB-231 cell line analyses show Zn isotopic fractionations in an opposite direction to those observed for in vivo breast cancer tissue. Uptake of isotopically heavy Zn (Δ66Znuptake = +0.23 ± 0.05‰) is consistent with transport via Zn transporters (ZIPs), which have histidine-rich binding sites. Zinc excreted during efflux is isotopically lighter than Zn taken up by the cells (Δ66Znefflux = -0.35 ± 0.06‰). The difference in Zn isotope fractionation observed between in vitro MDA-MB-231 cell line experiments and in vivo breast tissues might be due to differences in Zn transporter levels or intercellular Zn storage (endoplasmic reticulum and/or Zn specific vesicles); stromal cells, such as fibroblasts and immune cells. Although, additional experiments using other human breast cancer cell lines (e.g., MCF-7, BT-20) with varying Zn protein characteristics are required, the results highlight differences between in vitro and in vivo Zn isotope fractionation.
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Affiliation(s)
- Kathrin Schilling
- Lamont Doherty Earth Observatory, Columbia University, Palisades, NY, United States
- Department of Medical Oncology, Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- Department of Earth Sciences, University of Oxford, Oxford, United Kingdom
| | - Adrian L. Harris
- Department of Medical Oncology, Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Alex N. Halliday
- Lamont Doherty Earth Observatory, Columbia University, Palisades, NY, United States
- Department of Earth Sciences, University of Oxford, Oxford, United Kingdom
| | | | - Helen Sheldon
- Department of Medical Oncology, Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Syed Haider
- The Breast Cancer Now Toby Robins Breast Cancer Research Centre, The Institute of Cancer Research, London, United Kingdom
| | - Fiona Larner
- Department of Medical Oncology, Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- Department of Earth Sciences, University of Oxford, Oxford, United Kingdom
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