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Trlin P, Gong J, Tran KKN, Wong VHY, Lee PY, Hoang A, Zhao D, Beauchamp LC, Lim JKH, Metha A, Barnham KJ, Finkelstein DI, Bui BV, Bedggood P, Nguyen CTO. Retinal hyperspectral imaging in mouse models of Parkinson's disease and healthy aging. Sci Rep 2024; 14:16089. [PMID: 38997314 PMCID: PMC11245556 DOI: 10.1038/s41598-024-66284-7] [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: 02/17/2024] [Accepted: 07/01/2024] [Indexed: 07/14/2024] Open
Abstract
Retinal hyperspectral imaging (HSI) is a non-invasive in vivo approach that has shown promise in Alzheimer's disease. Parkinson's disease is another neurodegenerative disease where brain pathobiology such as alpha-synuclein and iron overaccumulation have been implicated in the retina. However, it remains unknown whether HSI is altered in in vivo models of Parkinson's disease, whether it differs from healthy aging, and the mechanisms which drive these changes. To address this, we conducted HSI in two mouse models of Parkinson's disease across different ages; an alpha-synuclein overaccumulation model (hA53T transgenic line M83, A53T) and an iron deposition model (Tau knock out, TauKO). In comparison to wild-type littermates the A53T and TauKO mice both demonstrated increased reflectivity at short wavelengths ~ 450 to 600 nm. In contrast, healthy aging in three background strains exhibited the opposite effect, a decreased reflectance in the short wavelength spectrum. We also demonstrate that the Parkinson's hyperspectral signature is similar to that from an Alzheimer's disease model, 5xFAD mice. Multivariate analyses of HSI were significant when plotted against age. Moreover, when alpha-synuclein, iron or retinal nerve fibre layer thickness were added as a cofactor this improved the R2 values of the correlations in certain groups. This study demonstrates an in vivo hyperspectral signature in Parkinson's disease that is consistent in two mouse models and is distinct from healthy aging. There is also a suggestion that factors including retinal deposition of alpha-synuclein and iron may play a role in driving the Parkinson's disease hyperspectral profile and retinal nerve fibre layer thickness in advanced aging. These findings suggest that HSI may be a promising translation tool in Parkinson's disease.
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Affiliation(s)
- Paul Trlin
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Jenny Gong
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Katie K N Tran
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Vickie H Y Wong
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Pei Ying Lee
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Anh Hoang
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Da Zhao
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Leah C Beauchamp
- Florey Institute of Neuroscience and Mental Health, Parkville, VIC, 3010, Australia
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Jeremiah K H Lim
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, 3010, Australia
- Discipline of Optometry, School of Allied Health, University of Western Australia, Crawley, WA, 6009, Australia
| | - Andrew Metha
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Kevin J Barnham
- Florey Institute of Neuroscience and Mental Health, Parkville, VIC, 3010, Australia
| | - David I Finkelstein
- Florey Institute of Neuroscience and Mental Health, Parkville, VIC, 3010, Australia
| | - Bang V Bui
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Phillip Bedggood
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Christine T O Nguyen
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, 3010, Australia.
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Huang M, Zhang Y, Liu X. The mechanism of cuproptosis in Parkinson's disease. Ageing Res Rev 2024; 95:102214. [PMID: 38311254 DOI: 10.1016/j.arr.2024.102214] [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: 10/31/2023] [Accepted: 01/30/2024] [Indexed: 02/09/2024]
Abstract
Parkinson's disease (PD) is a neurodegenerative disease with an increased morbidity. The pathogenesis PD has not been fully elucidated, and whatever mechanism is involved, it ultimately leads to dopamine (DA) neuronal apoptosis. Cuproptosis is a novel form of cell death. Its morphology, biochemical properties, and mechanism of action differ from known forms of cell death, such as apoptosis, autophagy, necrosis and pyroptosis. Copper binds to the lipoylated components of the tricarboxylic acid cycle, causing proteotoxic stress that ultimately leads to cellular cuproptosis. PD has biochemical features such as mitochondrial dysfunction and decreased levels of copper and glutathione in brain regions. This is closely related to the cuproptosis mechanism. However, the specific link between the pathogenesis of PD and cuproptosis is unclear. Herein, we summarizes cuproptosis as the cause of DA neuronal death in PD, and the relationship between cuproptosis and the PD pathogenesis. This article provides a research basis for targeted cuproptosis for PD.
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Affiliation(s)
- Min Huang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Zhejiang, China
| | - Yong Zhang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Zhejiang, China
| | - Xuehong Liu
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Zhejiang, China.
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Marshall J, Huynh K, Lancaster G, Ng J, Collins J, Pernes G, Liang A, Featherby T, Mellet N, Drew B, Calkin A, King A, Meikle P, Febbraio M, Adlard P, Henstridge D. Behavioral, metabolic, and lipidomic characterization of the 5xFADxTg30 mouse model of Alzheimer's disease. iScience 2024; 27:108800. [PMID: 38292430 PMCID: PMC10826307 DOI: 10.1016/j.isci.2024.108800] [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: 02/14/2023] [Revised: 10/23/2023] [Accepted: 01/02/2024] [Indexed: 02/01/2024] Open
Abstract
Alzheimer's disease (AD) is associated with both extracellular amyloid-β (Aβ) plaques and intracellular tau-containing neurofibrillary tangles (NFT). We characterized the behavioral, metabolic and lipidomic phenotype of the 5xFADxTg30 mouse model which contains overexpression of both Aβ and tau. Our results independently reproduce several phenotypic traits described previously for this model, while providing additional characterization. This model develops many aspects associated with AD including frailty, decreased survival, initiation of aspects of cognitive decline and alterations to specific lipid classes and molecular lipid species in the plasma and brain. Notably, some sex-specific differences exist in this model and motor impairment with aging in this model does compromise the utility of the model for some movement-based behavioral assessments of cognitive function. These findings provide a reference for individuals interested in using this model to understand the pathology associated with elevated Aβ and tau or for testing potential therapeutics for the treatment of AD.
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Affiliation(s)
- J.P.S. Marshall
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- School of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, VIC, Australia
- The Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - K. Huynh
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Parkville, VIC, Australia
- Baker Department of Cardiovascular Research Translation and Implementation, La Trobe University, Bundoora, VIC, Australia
| | - G.I. Lancaster
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Department of Immunology, Monash University, Melbourne, VIC, Australia
| | - J. Ng
- School of Health Sciences, The University of Tasmania, Launceston, TAS, Australia
| | - J.M. Collins
- Wicking Dementia Research and Education Centre, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - G. Pernes
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - A. Liang
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - T. Featherby
- The Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - N.A. Mellet
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - B.G. Drew
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Parkville, VIC, Australia
- Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - A.C. Calkin
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Parkville, VIC, Australia
- Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - A.E. King
- Wicking Dementia Research and Education Centre, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - P.J. Meikle
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Parkville, VIC, Australia
- Baker Department of Cardiovascular Research Translation and Implementation, La Trobe University, Bundoora, VIC, Australia
| | - M.A. Febbraio
- Monash Institute of Pharmaceutical Sciences, Melbourne, VIC, Australia
| | - P.A. Adlard
- The Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - D.C. Henstridge
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- School of Health Sciences, The University of Tasmania, Launceston, TAS, Australia
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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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