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Boonpraman N, Yi SS. NADPH oxidase 4 (NOX4) as a biomarker and therapeutic target in neurodegenerative diseases. Neural Regen Res 2024; 19:1961-1966. [PMID: 38227522 DOI: 10.4103/1673-5374.390973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/25/2023] [Indexed: 01/17/2024] Open
Abstract
Diseases like Alzheimer's and Parkinson's diseases are defined by inflammation and the damage neurons undergo due to oxidative stress. A primary reactive oxygen species contributor in the central nervous system, NADPH oxidase 4, is viewed as a potential therapeutic touchstone and indicative marker for these ailments. This in-depth review brings to light distinct features of NADPH oxidase 4, responsible for generating superoxide and hydrogen peroxide, emphasizing its pivotal role in activating glial cells, inciting inflammation, and disturbing neuronal functions. Significantly, malfunctioning astrocytes, forming the majority in the central nervous system, play a part in advancing neurodegenerative diseases, due to their reactive oxygen species and inflammatory factor secretion. Our study reveals that aiming at NADPH oxidase 4 within astrocytes could be a viable treatment pathway to reduce oxidative damage and halt neurodegenerative processes. Adjusting NADPH oxidase 4 activity might influence the neuroinflammatory cytokine levels, including myeloperoxidase and osteopontin, offering better prospects for conditions like Alzheimer's disease and Parkinson's disease. This review sheds light on the role of NADPH oxidase 4 in neural degeneration, emphasizing its drug target potential, and paving the path for novel treatment approaches to combat these severe conditions.
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Affiliation(s)
- Napissara Boonpraman
- BK21 four Program, Department of Medical Sciences, Soonchunhyang University, Asan, South Korea
| | - Sun Shin Yi
- BK21 four Program, Department of Medical Sciences, Soonchunhyang University, Asan, South Korea
- Department of Biomedical Laboratory Science, Soonchunhyang University, Asan, South Korea
- iConnectome, Co., Ltd., Cheonan, South Korea
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2
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Tullo S, Miranda AS, Del Cid-Pellitero E, Lim MP, Gallino D, Attaran A, Patel R, Novikov V, Park M, Beraldo FH, Luo W, Shlaifer I, Durcan TM, Bussey TJ, Saksida LM, Fon EA, Prado VF, Prado MAM, Chakravarty MM. Neuroanatomical and cognitive biomarkers of alpha-synuclein propagation in a mouse model of synucleinopathy prior to onset of motor symptoms. J Neurochem 2024; 168:1546-1564. [PMID: 37804203 DOI: 10.1111/jnc.15967] [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: 01/23/2023] [Revised: 08/31/2023] [Accepted: 09/11/2023] [Indexed: 10/09/2023]
Abstract
Significant evidence suggests that misfolded alpha-synuclein (aSyn), a major component of Lewy bodies, propagates in a prion-like manner contributing to disease progression in Parkinson's disease (PD) and other synucleinopathies. In fact, timed inoculation of M83 hemizygous mice with recombinant human aSyn preformed fibrils (PFF) has shown symptomatic deficits after substantial spreading of pathogenic alpha-synuclein, as detected by markers for the phosphorylation of S129 of aSyn. However, whether accumulated toxicity impact human-relevant cognitive and structural neuroanatomical measures is not fully understood. Here we performed a single unilateral striatal PFF injection in M83 hemizygous mice, and using two assays with translational potential, ex vivo magnetic resonance imaging (MRI) and touchscreen testing, we examined the combined neuroanatomical and behavioral impact of aSyn propagation. In PFF-injected mice, we observed widespread atrophy in bilateral regions that project to or receive input from the injection site using MRI. We also identified early deficits in reversal learning prior to the emergence of motor symptoms. Our findings highlight a network of regions with related cellular correlates of pathology that follow the progression of aSyn spreading, and that affect brain areas relevant for reversal learning. Our experiments suggest that M83 hemizygous mice injected with human PFF provides a model to understand how misfolded aSyn affects human-relevant pre-clinical measures and suggest that these pre-clinical biomarkers could be used to detect early toxicity of aSyn and provide better translational measures between mice and human disease.
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Affiliation(s)
- Stephanie Tullo
- Integrated Program in Neuroscience, McGill University, Montreal, Quebec, Canada
- Computational Brain Anatomy (CoBrA) Laboratory, Cerebral Imaging Center, Douglas Mental Health University Institute, McGill University, Verdun, Quebec, Canada
| | - Aline S Miranda
- Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
- Departamento de Morfologia, Instituto de Ciencias Biologicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Esther Del Cid-Pellitero
- McGill Parkinson Program, Neurodegenerative Diseases Group, Department of Neurology and Neurosurgery, Montreal Neurological Institute-Hospital, McGill University, Montreal, Quebec, Canada
| | - Mei Peng Lim
- Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Daniel Gallino
- Computational Brain Anatomy (CoBrA) Laboratory, Cerebral Imaging Center, Douglas Mental Health University Institute, McGill University, Verdun, Quebec, Canada
| | - Anoosha Attaran
- Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Raihaan Patel
- Computational Brain Anatomy (CoBrA) Laboratory, Cerebral Imaging Center, Douglas Mental Health University Institute, McGill University, Verdun, Quebec, Canada
- Department of Biological & Biomedical Engineering, McGill University, Montreal, Quebec, Canada
| | - Vladislav Novikov
- Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Megan Park
- Computational Brain Anatomy (CoBrA) Laboratory, Cerebral Imaging Center, Douglas Mental Health University Institute, McGill University, Verdun, Quebec, Canada
| | - Flavio H Beraldo
- Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Wen Luo
- Early Drug Discovery Unit, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Irina Shlaifer
- Early Drug Discovery Unit, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Thomas M Durcan
- Early Drug Discovery Unit, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Timothy J Bussey
- Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Lisa M Saksida
- Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Edward A Fon
- McGill Parkinson Program, Neurodegenerative Diseases Group, Department of Neurology and Neurosurgery, Montreal Neurological Institute-Hospital, McGill University, Montreal, Quebec, Canada
| | - Vania F Prado
- Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Marco A M Prado
- Robarts Research Institute, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - M Mallar Chakravarty
- Computational Brain Anatomy (CoBrA) Laboratory, Cerebral Imaging Center, Douglas Mental Health University Institute, McGill University, Verdun, Quebec, Canada
- Department of Biological & Biomedical Engineering, McGill University, Montreal, Quebec, Canada
- Department of Psychiatry, McGill University, Montreal, Quebec, Canada
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3
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Lau K, Kotzur R, Richter F. Blood-brain barrier alterations and their impact on Parkinson's disease pathogenesis and therapy. Transl Neurodegener 2024; 13:37. [PMID: 39075566 DOI: 10.1186/s40035-024-00430-z] [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: 03/20/2024] [Accepted: 07/11/2024] [Indexed: 07/31/2024] Open
Abstract
There is increasing evidence for blood-brain barrier (BBB) alterations in Parkinson's disease (PD), the second most common neurodegenerative disorder with rapidly rising prevalence. Altered tight junction and transporter protein levels, accumulation of α-synuclein and increase in inflammatory processes lead to extravasation of blood molecules and vessel degeneration. This could result in a self-perpetuating pathophysiology of inflammation and BBB alteration, which contribute to neurodegeneration. Toxin exposure or α-synuclein over-expression in animal models has been shown to initiate similar pathologies, providing a platform to study underlying mechanisms and therapeutic interventions. Here we provide a comprehensive review of the current knowledge on BBB alterations in PD patients and how rodent models that replicate some of these changes can be used to study disease mechanisms. Specific challenges in assessing the BBB in patients and in healthy controls are discussed. Finally, a potential role of BBB alterations in disease pathogenesis and possible implications for therapy are explored. The interference of BBB alterations with current and novel therapeutic strategies requires more attention. Brain region-specific BBB alterations could also open up novel opportunities to target specifically vulnerable neuronal subpopulations.
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Affiliation(s)
- Kristina Lau
- Department of Pharmacology, Toxicology and Pharmacy, University of Veterinary Medicine Hannover, Foundation, Bünteweg 17, 30559, Hannover, Germany
- Center for Systems Neuroscience, Hannover, Germany
| | - Rebecca Kotzur
- Department of Pharmacology, Toxicology and Pharmacy, University of Veterinary Medicine Hannover, Foundation, Bünteweg 17, 30559, Hannover, Germany
| | - Franziska Richter
- Department of Pharmacology, Toxicology and Pharmacy, University of Veterinary Medicine Hannover, Foundation, Bünteweg 17, 30559, Hannover, Germany.
- Center for Systems Neuroscience, Hannover, Germany.
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Yun J, Lee I, Lee JH, Kim S, Jung SH, Oh SA, Lee J, Park SK, Soh MS, Lee Y, Kwak JM. The single RRM domain-containing protein SARP1 is required for establishment of the separation zone in Arabidopsis. THE NEW PHYTOLOGIST 2024. [PMID: 39061105 DOI: 10.1111/nph.19997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Accepted: 07/02/2024] [Indexed: 07/28/2024]
Abstract
Abscission is the shedding of plant organs in response to developmental and environmental cues. Abscission involves cell separation between two neighboring cell types, residuum cells (RECs) and secession cells (SECs) in the floral abscission zone (AZ) in Arabidopsis thaliana. However, the regulatory mechanisms behind the spatial determination that governs cell separation are largely unknown. The class I KNOTTED-like homeobox (KNOX) transcription factor BREVIPEDICELLUS (BP) negatively regulates AZ cell size and number in Arabidopsis. To identify new players participating in abscission, we performed a genetic screen by activation tagging a weak complementation line of bp-3. We identified the mutant ebp1 (enhancer of BP1) displaying delayed floral organ abscission. The ebp1 mutant showed a concaved surface in SECs and abnormally stacked cells on the top of RECs, in contrast to the precisely separated surface in the wild-type. Molecular and histological analyses revealed that the transcriptional programming during cell differentiation in the AZ is compromised in ebp1. The SECs of ebp1 have acquired REC-like properties, including cuticle formation and superoxide production. We show that SEPARATION AFFECTING RNA-BINDING PROTEIN1 (SARP1) is upregulated in ebp1 and plays a role in the establishment of the cell separation layer during floral organ abscission in Arabidopsis.
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Affiliation(s)
- Ju Yun
- Department of New Biology, DGIST, Daegu, 42988, Korea
| | - Inhye Lee
- Division of Integrative Bioscience and Bioengineering, Sejong University, Seoul, 05006, Korea
| | - Jae Ho Lee
- Korea Bioinformation Center, Korea Research Institute of Bioscience & Biotechnology, Daejeon, 34141, Korea
| | - Seonghwan Kim
- Department of New Biology, DGIST, Daegu, 42988, Korea
| | - Su Hyun Jung
- Department of New Biology, DGIST, Daegu, 42988, Korea
| | - Sung Aeong Oh
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Korea
| | - Jiyoun Lee
- Department of New Biology, DGIST, Daegu, 42988, Korea
| | - Soon Ki Park
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Korea
| | - Moon-Soo Soh
- Division of Integrative Bioscience and Bioengineering, Sejong University, Seoul, 05006, Korea
| | - Yuree Lee
- School of Biological Sciences, Seoul National University, Seoul, 08826, Korea
- Plant Genomics and Breeding Institute, Seoul National University, Seoul, 08826, Korea
| | - June M Kwak
- Department of New Biology, DGIST, Daegu, 42988, Korea
- Center for Cell Fate Control and Reprogramming, DGIST, Daegu, 42988, Korea
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Yamaguchi H, Nishimura Y, Matsuse D, Sekiya H, Masaki K, Tanaka T, Saiga T, Harada M, Kira YI, Dickson DW, Fujishima K, Matsuo E, Tanaka KF, Yamasaki R, Isobe N, Kira JI. A rapidly progressive multiple system atrophy-cerebellar variant model presenting marked glial reactions with inflammation and spreading of α-synuclein oligomers and phosphorylated α-synuclein aggregates. Brain Behav Immun 2024; 121:122-141. [PMID: 38986725 DOI: 10.1016/j.bbi.2024.07.004] [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: 09/05/2023] [Revised: 04/30/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024] Open
Abstract
Multiple system atrophy (MSA) is a severe α-synucleinopathy facilitated by glial reactions; the cerebellar variant (MSA-C) preferentially involves olivopontocerebellar fibres with conspicuous demyelination. A lack of aggressive models that preferentially involve olivopontocerebellar tracts in adulthood has hindered our understanding of the mechanisms of demyelination and neuroaxonal loss, and thus the development of effective treatments for MSA. We therefore aimed to develop a rapidly progressive mouse model that recaptures MSA-C pathology. We crossed Plp1-tTA and tetO-SNCA*A53T mice to generate Plp1-tTA::tetO-SNCA*A53T bi-transgenic mice, in which human A53T α-synuclein-a mutant protein with enhanced aggregability-was specifically produced in the oligodendrocytes of adult mice using Tet-Off regulation. These bi-transgenic mice expressed mutant α-synuclein from 8 weeks of age, when doxycycline was removed from the diet. All bi-transgenic mice presented rapidly progressive motor deterioration, with wide-based ataxic gait around 22 weeks of age and death around 30 weeks of age. They also had prominent demyelination in the brainstem/cerebellum. Double immunostaining demonstrated that myelin basic protein was markedly decreased in areas in which SM132, an axonal marker, was relatively preserved. Demyelinating lesions exhibited marked ionised calcium-binding adaptor molecule 1-, arginase-1-, and toll-like receptor 2-positive microglial reactivity and glial fibrillary acidic protein-positive astrocytic reactivity. Microarray analysis revealed a strong inflammatory response and cytokine/chemokine production in bi-transgenic mice. Neuronal nuclei-positive neuronal loss and patchy microtubule-associated protein 2-positive dendritic loss became prominent at 30 weeks of age. However, a perceived decrease in tyrosine hydroxylase-positive neurons in the substantia nigra pars compacta in bi-transgenic mice compared with wild-type mice was not significant, even at 30 weeks of age. Wild-type, Plp1-tTA, and tetO-SNCA*A53T mice developed neither motor deficits nor demyelination. In bi-transgenic mice, double immunostaining revealed human α-synuclein accumulation in neurite outgrowth inhibitor A (Nogo-A)-positive oligodendrocytes beginning at 9 weeks of age; its expression was further increased at 10 to 12 weeks, and these increased levels were maintained at 12, 24, and 30 weeks. In an α-synuclein-proximity ligation assay, α-synuclein oligomers first appeared in brainstem oligodendrocytes as early as 9 weeks of age; they then spread to astrocytes, neuropil, and neurons at 12 and 16 weeks of age. α-Synuclein oligomers in the brainstem neuropil were most abundant at 16 weeks of age and decreased thereafter; however, those in Purkinje cells successively increased until 30 weeks of age. Double immunostaining revealed the presence of phosphorylated α-synuclein in Nogo-A-positive oligodendrocytes in the brainstem/cerebellum as early as 9 weeks of age. In quantitative assessments, phosphorylated α-synuclein gradually and successively accumulated at 12, 24, and 30 weeks in bi-transgenic mice. By contrast, no phosphorylated α-synuclein was detected in wild-type, tetO-SNCA*A53T, or Plp1-tTA mice at any age examined. Pronounced demyelination and tubulin polymerisation, promoting protein-positive oligodendrocytic loss, was closely associated with phosphorylated α-synuclein aggregates at 24 and 30 weeks of age. Early inhibition of mutant α-synuclein expression by doxycycline diet at 23 weeks led to fully recovered demyelination; inhibition at 27 weeks led to persistent demyelination with glial reactions, despite resolving phosphorylated α-synuclein aggregates. In conclusion, our bi-transgenic mice exhibited progressively increasing demyelination and neuroaxonal loss in the brainstem/cerebellum, with rapidly progressive motor deterioration in adulthood. These mice showed marked microglial and astrocytic reactions with inflammation that was closely associated with phosphorylated α-synuclein aggregates. These features closely mimic human MSA-C pathology. Notably, our model is the first to suggest that α-synuclein oligomers may spread from oligodendrocytes to neurons in transgenic mice with human α-synuclein expression in oligodendrocytes. This model of MSA is therefore particularly useful for elucidating the in vivo mechanisms of α-synuclein spreading from glia to neurons, and for developing therapies that target glial reactions and/or α-synuclein oligomer spreading and aggregate formation in MSA.
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Affiliation(s)
- Hiroo Yamaguchi
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; School of Physical Therapy, Faculty of Rehabilitation, Reiwa Health Sciences University, Fukuoka, Japan.
| | - Yuji Nishimura
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Dai Matsuse
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Hiroaki Sekiya
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA.
| | - Katsuhisa Masaki
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Tatsunori Tanaka
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Sumitomo Pharma Co., Ltd., Osaka, Japan.
| | - Toru Saiga
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Masaya Harada
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Yuu-Ichi Kira
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | | | - Kei Fujishima
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Eriko Matsuo
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Kenji F Tanaka
- Division of Brain Sciences, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan.
| | - Ryo Yamasaki
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Noriko Isobe
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Jun-Ichi Kira
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Translational Neuroscience Research Center, Graduate School of Medicine, and School of Pharmacy at Fukuoka, International University of Health and Welfare, Fukuoka, Japan; Department of Neurology, Brain and Nerve Center, Fukuoka Central Hospital, International University of Health and Welfare, Fukuoka, Japan.
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Bolsewig K, van Unnik AAJM, Blujdea ER, Gonzalez MC, Ashton NJ, Aarsland D, Zetterberg H, Padovani A, Bonanni L, Mollenhauer B, Schade S, Vandenberghe R, Poesen K, Kramberger MG, Paquet C, Bousiges O, Cretin B, Willemse EAJ, Teunissen CE, Lemstra AW. Association of Plasma Amyloid, P-Tau, GFAP, and NfL With CSF, Clinical, and Cognitive Features in Patients With Dementia With Lewy Bodies. Neurology 2024; 102:e209418. [PMID: 38830138 PMCID: PMC11244745 DOI: 10.1212/wnl.0000000000209418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Plasma β-amyloid-1-42/1-40 (Aβ42/40), phosphorylated-tau (P-tau), glial fibrillary acidic protein (GFAP), and neurofilament light (NfL) have been widely examined in Alzheimer disease (AD), but little is known about their reflection of copathologies, clinical importance, and predictive value in dementia with Lewy bodies (DLB). We aimed to evaluate associations of these biomarkers with CSF amyloid, cognition, and core features in DLB. METHODS This cross-sectional multicenter cohort study with prospective component included individuals with DLB, AD, and healthy controls (HCs), recruited from 2002 to 2020 with an annual follow-up of up to 5 years, from the European-Dementia With Lewy Bodies consortium. Plasma biomarkers were measured by single-molecule array (Neurology 4-Plex E kit). Amyloid status was determined by CSF Aβ42 concentrations, and cognition was assessed by Mini-Mental State Examination (MMSE). Biomarker differences across groups, associations with amyloid status, and clinical core features were assessed by analysis of covariance. Associations with cognitive impairment and decline were assessed by linear regression and linear mixed-effects models. RESULTS In our cohort consisting of 562 individuals (HC n = 89, DLB n = 342, AD n = 131; 250 women [44.5%], mean [SD] age of 71 [8] years), sex distribution did not differ between groups. Patients with DLB were significantly older, and had less years of education and worse baseline cognition than HC, but not AD. DLB participants stratified for amyloid status differed significantly in plasma Aβ42/40 ratio (decreased in amyloid abnormal: β = -0.008, 95% CI -0.016 to -0.0003, p = 0.01) and P-tau (increased in amyloid abnormal, P-tau181: β = 0.246, 95% CI 0.011-0.481; P-tau231: β = 0.227, 95% CI 0.035-0.419, both p < 0.05), but not in GFAP (β = 0.068, 95% CI -0.018 to 0.153, p = 0.119), and NfL (β = 0.004, 95% CI -0.087 to 0.096, p = 0.923) concentrations. Higher baseline GFAP, NfL, and P-tau concentrations were associated with lower MMSE scores in DLB, and GFAP and NfL were associated with a faster cognitive decline (GFAP: annual change of -2.11 MMSE points, 95% CI -2.88 to -1.35 MMSE points, p < 0.001; NfL: annual change of -2.13 MMSE points, 95% CI -2.97 to -1.29 MMSE points, p < 0.001). DLB participants with parkinsonism had higher concentrations of NfL (β = 0.08, 95% CI 0.02-0.14, p = 0.006) than those without. DISCUSSION Our study suggests a possible utility of plasma Aβ42/40, P-tau181, and P-tau231 as a noninvasive biomarkers to assess amyloid copathology in DLB, and plasma GFAP and NfL as monitoring biomarkers for cognitive symptoms in DLB.
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Affiliation(s)
- Katharina Bolsewig
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Annemartijn A J M van Unnik
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Elena R Blujdea
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Maria C Gonzalez
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Nicholas J Ashton
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Dag Aarsland
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Henrik Zetterberg
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Alessandro Padovani
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Laura Bonanni
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Brit Mollenhauer
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Sebastian Schade
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Rik Vandenberghe
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Koen Poesen
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Milica G Kramberger
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Claire Paquet
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Olivier Bousiges
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Benjamin Cretin
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Eline A J Willemse
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Charlotte E Teunissen
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
| | - Afina W Lemstra
- From the Department of Laboratory Medicine (K.B., E.R.B., E.A.J.W., C.E.T.) and Alzheimer Center Amsterdam (A.A.J.M.U., A.W.L.), Amsterdam UMC, the Netherlands; Department of Quality and Health Technology (M.C.G.), University of Stavanger; The Norwegian Centre for Movement Disorders (M.C.G.) and the Centre for Age-Related Medicine (M.C.G., N.J.A., D.A.), Stavanger University Hospital, Norway; Department of Psychiatry and Neurochemistry (N.J.A., H.Z.), the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Department of Old Age Psychiatry (N.J.A., D.A.), King's College London, United Kingdom; Clinical Neurochemistry Laboratory (H.Z.), Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease (H.Z.), UCL Institute of Neurology; UK Dementia Research Institute at UCL (H.Z.), London, United Kingdom; Hong Kong Center for Neurodegenerative Diseases (H.Z.), Hong Kong, China; Wisconsin Alzheimer's Disease Research Center (H.Z.), University of Wisconsin School of Medicine and Public Health, Madison; Neurology Unit (A.P.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Medicine and Aging Sciences (L.B.), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy; Department of Neurology (B.M.), University Medical Center Göttingen; Paracelsus-Elena-Klinik (B.M., S.S.), Germany; Department of Neurosciences (R.V., K.P.), KU Leuven, Belgium; Department of Neurology and Medical Faculty (M.G.K.), University Medical Center Ljubljana, Slovenia; Department of Neurobiology (M.G.K.), Karolinska Institutet, Huddinge, Sweden; Université de Paris Cité (C.P.), Centre de Neurologie Cognitive, Paris; Laboratory of Biochemistry and Molecular Biology (O.B.), University Hospital of Strasbourg; University of Strasbourg and CNRS (O.B., B.C.); Memory Resource and Research Centre (B.C.), University Hospital of Strasbourg, France; Department of Neurology (E.A.J.W.), Multiple Sclerosis Center; Research Center for Clinical Neuroimmunology and Neuroscience Basel (E.A.J.W.); and Departments of Biomedicine and Clinical Research (E.A.J.W.), University Hospital Basel and University of Basel, Switzerland
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Nakos Bimpos M, Karali K, Antoniou C, Palermos D, Fouka M, Delis A, Tzieras I, Chrousos GP, Koutmani Y, Stefanis L, Polissidis A. Alpha-synuclein-induced stress sensitivity renders the Parkinson's disease brain susceptible to neurodegeneration. Acta Neuropathol Commun 2024; 12:100. [PMID: 38886854 PMCID: PMC11181569 DOI: 10.1186/s40478-024-01797-w] [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: 03/27/2024] [Accepted: 05/12/2024] [Indexed: 06/20/2024] Open
Abstract
A link between chronic stress and Parkinson's disease (PD) pathogenesis is emerging. Ample evidence demonstrates that the presynaptic neuronal protein alpha-synuclein (asyn) is closely tied to PD pathogenesis. However, it is not known whether stress system dysfunction is present in PD, if asyn is involved, and if, together, they contribute to neurodegeneration. To address these questions, we assess stress axis function in transgenic rats overexpressing full-length wildtype human asyn (asyn BAC rats) and perform multi-level stress and PD phenotyping following chronic corticosterone administration. Stress signaling, namely corticotropin-releasing factor, glucocorticoid and mineralocorticoid receptor gene expression, is also examined in post-mortem PD patient brains. Overexpression of human wildtype asyn leads to HPA axis dysregulation in rats, while chronic corticosterone administration significantly aggravates nigrostriatal degeneration, serine129 phosphorylated asyn (pS129) expression and neuroinflammation, leading to phenoconversion from a prodromal to an overt motor PD phenotype. Interestingly, chronic corticosterone in asyn BAC rats induces a robust, twofold increase in pS129 expression in the hypothalamus, the master regulator of the stress response, while the hippocampus, both a regulator and a target of the stress response, also demonstrates elevated pS129 asyn levels and altered markers of stress signalling. Finally, defective hippocampal stress signalling is mirrored in human PD brains and correlates with asyn expression levels. Taken together, our results link brain stress system dysregulation with asyn and provide evidence that elevated circulating glucocorticoids can contribute to asyn-induced neurodegeneration, ultimately triggering phenoconversion from prodromal to overt PD.
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Affiliation(s)
- Modestos Nakos Bimpos
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens - BRFAA, 11527, Athens, Greece
| | - Katerina Karali
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens - BRFAA, 11527, Athens, Greece
- German Center for Neurodegenerative Diseases, Feodor-Lynen-Straße 17, 81377, Munich, Germany
- Athens International Master's Programme in Neurosciences, Department of Biology, National and Kapodistrian University of Athens, 15784, Illisia, Athens, Greece
| | - Christine Antoniou
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens - BRFAA, 11527, Athens, Greece
- Athens International Master's Programme in Neurosciences, Department of Biology, National and Kapodistrian University of Athens, 15784, Illisia, Athens, Greece
| | - Dionysios Palermos
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens - BRFAA, 11527, Athens, Greece
| | - Maria Fouka
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens - BRFAA, 11527, Athens, Greece
| | - Anastasios Delis
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens - BRFAA, 11527, Athens, Greece
| | - Iason Tzieras
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens - BRFAA, 11527, Athens, Greece
| | - George Panagiotis Chrousos
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens - BRFAA, 11527, Athens, Greece
- University Research Institute on Maternal and Child Health and Precision Medicine, and UNESCO Chair on Adolescent Health Care, Aghia Sophia Children's Hospital, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Yassemi Koutmani
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens - BRFAA, 11527, Athens, Greece
| | - Leonidas Stefanis
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens - BRFAA, 11527, Athens, Greece
- 1St Department of Neurology, Eginition Hospital, Medical School, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Alexia Polissidis
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens - BRFAA, 11527, Athens, Greece.
- Department of Science and Mathematics, ACG-Research Center, Deree - American College of Greece, 15342, Athens, Greece.
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8
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Siddiqui T, Bhatt LK. Emerging autophagic endo-lysosomal targets in the management of Parkinson's disease. Rev Neurol (Paris) 2024; 180:477-485. [PMID: 37586941 DOI: 10.1016/j.neurol.2023.07.007] [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: 11/15/2022] [Revised: 06/26/2023] [Accepted: 07/04/2023] [Indexed: 08/18/2023]
Abstract
Synucleopathies, specifically Parkinson's disease, are still incurable and available therapeutic options are scarce and symptomatic. The autophagy-lysosomal-endosomal system is an indigenous mechanism to manage the proteome. Excess/misfolded protein accumulation activates this system, which degrades the undesired proteins via lysosomes. Cells also eliminate these proteins by releasing them into the extracellular space via exosomes. However, the sutophagy-lysosomal-endosomal system becomes unfunctional in Parkinson's disease and there is accumulation and spread of pathogenic alpha-synuclein. Neuronal degeneration results Owing to pathogenic alpha-synuclein. Thus, the autophagy-lysosomal-endosomal system could be a promising target for neuroprotection. In the present review, we discuss the autophagy-lysosomal-endosomal system as an emerging target for the management of Parkinson's disease. Modulation of these targets associated with the autophagy-lysosomal-endosomal system can aid in clearing pathogenic alpha-synuclein and prevent the degeneration of neurons.
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Affiliation(s)
- T Siddiqui
- Department of Pharmacology, SVKM's Doctor Bhanuben-Nanavati College of Pharmacy, Vile Parle (West), Mumbai, India
| | - L K Bhatt
- Department of Pharmacology, SVKM's Doctor Bhanuben-Nanavati College of Pharmacy, Vile Parle (West), Mumbai, India.
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Ma W, Geng Y, Liu Y, Pan H, Wang Q, Zhang Y, Wang L. The mechanisms of white matter injury and immune system crosstalk in promoting the progression of Parkinson's disease: a narrative review. Front Aging Neurosci 2024; 16:1345918. [PMID: 38863783 PMCID: PMC11165104 DOI: 10.3389/fnagi.2024.1345918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 05/15/2024] [Indexed: 06/13/2024] Open
Abstract
Parkinson's disease (PD) is neurodegenerative disease in middle-aged and elderly people with some pathological mechanisms including immune disorder, neuroinflammation, white matter injury and abnormal aggregation of alpha-synuclein, etc. New research suggests that white matter injury may be important in the development of PD, but how inflammation, the immune system, and white matter damage interact to harm dopamine neurons is not yet understood. Therefore, it is particularly important to delve into the crosstalk between immune cells in the central and peripheral nervous system based on the study of white matter damage in PD. This crosstalk could not only exacerbate the pathological process of PD but may also reveal new therapeutic targets. By understanding how immune cells penetrate through the blood-brain barrier and activate inflammatory responses within the central nervous system, we can better grasp the impact of structural destruction of white matter in PD and explore how this process can be modulated to mitigate or combat disease progression. Microglia, astrocytes, oligodendrocytes and peripheral immune cells (especially T cells) play a central role in its pathological process where these immune cells produce and respond to pro-inflammatory cytokines such as tumor necrosis factor (TNF-α), interleukin-1β(IL-1β) and interleukin-6(IL-6), and white matter injury causes microglia to become pro-inflammatory and release inflammatory mediators, which attract more immune cells to the damaged area, increasing the inflammatory response. Moreover, white matter damage also causes dysfunction of blood-brain barrier, allows peripheral immune cells and inflammatory factors to invade the brain further, and enhances microglia activation forming a vicious circle that intensifies neuroinflammation. And these factors collectively promote the neuroinflammatory environment and neurodegeneration changes of PD. Overall, these findings not only deepen our understanding of the complexity of PD, but also provide new targets for the development of therapeutic strategies focused on inflammation and immune regulation mechanisms. In summary, this review provided the theoretical basis for clarifying the pathogenesis of PD, summarized the association between white matter damage and the immune cells in the central and peripheral nervous systems, and then emphasized their potential specific mechanisms of achieving crosstalk with further aggravating the pathological process of PD.
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Affiliation(s)
- Wen Ma
- Graduate School of Education, Shandong Sport University, Jinan, Shandong, China
| | - Yifan Geng
- Xuzhou Clinical School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Youhan Liu
- Graduate School of Education, Shandong Sport University, Jinan, Shandong, China
| | - Huixin Pan
- Graduate School of Education, Shandong Sport University, Jinan, Shandong, China
| | - Qinglu Wang
- Graduate School of Education, Shandong Sport University, Jinan, Shandong, China
| | - Yaohua Zhang
- Key Laboratory of Biomedical Engineering & Technology of Shandong High School, Qilu Medical University, Zibo, China
| | - Liping Wang
- Graduate School of Education, Shandong Sport University, Jinan, Shandong, China
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Liu L, Tian X, Li W. Mechanistic study of the anti-excitatory amino acid toxicity of Bushen Zhichan decoction for Parkinson's disease based on the transcriptional regulation of EAAT1 by YY1. JOURNAL OF ETHNOPHARMACOLOGY 2024; 325:117857. [PMID: 38350506 DOI: 10.1016/j.jep.2024.117857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/25/2024] [Accepted: 02/02/2024] [Indexed: 02/15/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Bushen Zhichan decoction (BSZCF) is derived from Liuwei Dihuang Pill, a famous Chinese herbal formula recorded in the book Key to Therapeutics of Children's Diseases. It has been widely used as a basic prescription for nourishing and tonifying the liver and kidneys to treat Parkinson's disease (PD), but its mechanism remains to be explored. AIM OF THE STUDY BSZCF, a Chinese herbal formula comprising five herbs: Rehmannia glutinosa (Gaertn.) DC., Dioscorea oppositifolia L., Cornus officinalis Siebold & Zucc., Fallopia multiflora (Thunb.) Haraldson and Cistanche tubulosa (Schenk) Wight, is used clinically to treat PD. In vivo and in vitro experiments were designed to elucidate the mechanism of BSZCF in the protection of dopamine (DA) neurons and the treatment of PD. The toxicity of excitatory amino acids (EAA) may be attenuated by inhibiting the transcription factor Yin Yang 1 (YY1) and up-regulating the expression of excitatory amino acid transporter 1 (EAAT1). MATERIALS AND METHODS IN VIVO: After 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) was intraperitoneally injected into specific pathogen free (SPF) C57BL/6J mice, model mice were intragastrically given adamantane hydrochloride tablets (AHT) or different doses of BSZCF for 14 days. Both open field and pole-climbing tests were conducted to assess behavioral changes. In vitro: 1-Methyl-4-phe-nylpyridiniumiodide (MPP+)-injured human neuroblastoma cells (SH-SY5Y) were utilized to construct PD cell models. Primary astrocytes were transfected with EAAT1 and YY1 lentiviruses for EAAT1 gene knockout and YY1 gene knockout astrocytes, respectively. The high performance liquid chromatography-mass spectrometry (HPLC-MS) analysis of BSZCF was performed to control the quality of blood drugs. The optimal concentration and time of PD cell models treated by BSZCF were determined by the use of Cell Counting Kit-8 (CCK8). Enzyme-linked immunosorbent assay (ELISA) was used for measuring glutamate (Glu) in the peripheral blood and cells of each group. Western blotting (WB) and real-time quantitative polymerase chain reaction (qPCR) were used to detect tyrosine hydroxylase (TH), dopamine transporters (DAT), EAAT1 and YY1 protein and mRNA. After the blockade of EAAT1, immunofluorescence (IF) assay was used to detect the TH protein in each group. RESULTS In vivo research showed that BSZCF improved the behavioral symptoms of PD mice, and reduced the death of DA neurons and the level of Glu. The mechanism may be related to the decrease of YY1 expression and the increase of EAAT1 levels. In vitro experiments showed that the anti-excitatory amino acid toxicity of BSZCF was achieved by inhibiting YY1 expression and regulating EAAT1. CONCLUSIONS By inhibiting YY1 to increase the expression of EAAT1 and attenuating the toxicity of Glu, BSZCF exerts the effect of protecting DA neurons and treating PD-like symptoms in mice.
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Affiliation(s)
- Leilei Liu
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, China.
| | - Xinyun Tian
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, China.
| | - Wentao Li
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, China.
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Ho DH, Kim H, Nam D, Seo MK, Park SW, Son I. Expression of G2019S LRRK2 in Rat Primary Astrocytes Mediates Neurotoxicity and Alters the Dopamine Synthesis Pathway in N27 Cells via Astrocytic Proinflammatory Cytokines and Neurotrophic Factors. Curr Issues Mol Biol 2024; 46:4324-4336. [PMID: 38785531 PMCID: PMC11119058 DOI: 10.3390/cimb46050263] [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: 12/04/2023] [Revised: 04/30/2024] [Accepted: 05/02/2024] [Indexed: 05/25/2024] Open
Abstract
Astrocytes in the brain contribute to various essential functions, including maintenance of the neuronal framework, survival, communication, metabolic processes, and neurotransmitter levels. Leucine-rich repeat kinase 2 (LRRK2) is associated with the pathogenesis of Parkinson's disease (PD). LRRK2 is expressed in neurons, microglia, and astrocytes and plays diverse roles in these cell types. We aimed to determine the effects of mutant human G2019S-LRRK2 (GS-hLRRK2) in rat primary astrocytes (rASTROs). Transfection with GS-hLRRK2 significantly decreased cell viability compared to transfection with the vector and wild-type human LRRK2 (WT-hLRRK2). GS-hLRRK2 expression significantly reduced the levels of nerve growth factor and increased the levels of proinflammatory cytokines (interleukin-1β and tumor necrosis factor α) compared to the vector and WT-hLRRK2 expression. Furthermore, GS-hLRRK2 expression in rASTROs promoted astrogliosis, which was characterized by increased expression of glial fibrillary acidic protein and vimentin. Treatment with the conditioned medium of G2019S LRRK2-expressing rASTROs decreased N27 cell viability compared to treatment with that of WT-hLRRK2-expressing rASTROs. Consequently, the regulation of the dopamine synthesis pathway was affected in N27 cells, thereby leading to altered levels of tyrosine hydroxylase, dopamine transporter, Nurr1, and dopamine release. Overall, the G2019S LRRK2 mutation disrupted astrocyte function, thereby aggravating PD progression.
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Affiliation(s)
- Dong Hwan Ho
- InAm Neuroscience Research Center, Sanbon Medical Center, College of Medicine, Wonkwang University, 321, Sanbon-ro, Gunpo-si 15865, Republic of Korea; (H.K.); (D.N.)
| | - Hyejung Kim
- InAm Neuroscience Research Center, Sanbon Medical Center, College of Medicine, Wonkwang University, 321, Sanbon-ro, Gunpo-si 15865, Republic of Korea; (H.K.); (D.N.)
| | - Daleum Nam
- InAm Neuroscience Research Center, Sanbon Medical Center, College of Medicine, Wonkwang University, 321, Sanbon-ro, Gunpo-si 15865, Republic of Korea; (H.K.); (D.N.)
| | - Mi Kyoung Seo
- Paik Institute for Clinical Research, Inje University, Busan-si 47392, Republic of Korea; (M.K.S.); (S.W.P.)
| | - Sung Woo Park
- Paik Institute for Clinical Research, Inje University, Busan-si 47392, Republic of Korea; (M.K.S.); (S.W.P.)
- Department of Convergence Biomedical Science, Inje University College of Medicine, Busan-si 47392, Republic of Korea
| | - Ilhong Son
- InAm Neuroscience Research Center, Sanbon Medical Center, College of Medicine, Wonkwang University, 321, Sanbon-ro, Gunpo-si 15865, Republic of Korea; (H.K.); (D.N.)
- Department of Neurology, Sanbon Medical Center, College of Medicine, Wonkwang University, 321, Sanbon-ro, Gunpo-si 15865, Republic of Korea
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12
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Matarazzo M, Pérez-Soriano A, Vafai N, Shahinfard E, Cheng KJC, McKenzie J, Neilson N, Miao Q, Schaffer P, Shinotoh H, Kordower JH, Sossi V, Stoessl AJ. Misfolded protein deposits in Parkinson's disease and Parkinson's disease-related cognitive impairment, a [ 11C]PBB3 study. NPJ Parkinsons Dis 2024; 10:96. [PMID: 38702305 PMCID: PMC11068893 DOI: 10.1038/s41531-024-00708-z] [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: 11/24/2023] [Accepted: 04/11/2024] [Indexed: 05/06/2024] Open
Abstract
Parkinson's disease (PD) is associated with aggregation of misfolded α-synuclein and other proteins, including tau. We designed a cross-sectional study to quantify the brain binding of [11C]PBB3 (a ligand known to bind to misfolded tau and possibly α-synuclein) as a proxy of misfolded protein aggregation in Parkinson's disease (PD) subjects with and without cognitive impairment and healthy controls (HC). In this cross-sectional study, nineteen cognitively normal PD subjects (CN-PD), thirteen cognitively impaired PD subjects (CI-PD) and ten HC underwent [11C]PBB3 PET. A subset of the PD subjects also underwent PET imaging with [11C](+)DTBZ to assess dopaminergic denervation and [11C]PBR28 to assess neuroinflammation. Compared to HC, PD subjects showed higher [11C]PBB3 binding in the posterior putamen but not the substantia nigra. There was no relationship across subjects between [11C]PBB3 and [11C]PBR28 binding in nigrostriatal regions. [11C]PBB3 binding was increased in the anterior cingulate in CI-PD compared to CN-PD and HC, and there was an inverse correlation between cognitive scores and [11C]PBB3 binding in this region across all PD subjects. Our results support a primary role of abnormal protein deposition localized to the posterior putamen in PD. This suggests that striatal axonal terminals are preferentially involved in the pathophysiology of PD. Furthermore, our findings suggest that anterior cingulate pathology might represent a significant in vivo marker of cognitive impairment in PD, in agreement with previous neuropathological studies.
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Affiliation(s)
- Michele Matarazzo
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
- HM CINAC, Hospital Universitario HM Puerta del Sur, Móstoles, Madrid, Spain
- Department of Medicine, Faculty of Medicine, Complutense University of Madrid, Madrid, Spain
| | - Alexandra Pérez-Soriano
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Nasim Vafai
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
| | - Elham Shahinfard
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
| | - Kevin Ju-Chieh Cheng
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
| | - Jessamyn McKenzie
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Nicole Neilson
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | | | | | - Hitoshi Shinotoh
- Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, Chiba, Japan
| | - Jeffrey H Kordower
- ASU-Banner Neurodegenerative Disease Research Center and School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Vesna Sossi
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
| | - A Jon Stoessl
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada.
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada.
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13
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Wani I, Koppula S, Balda A, Thekkekkara D, Jamadagni A, Walse P, Manjula SN, Kopalli SR. An Update on the Potential of Tangeretin in the Management of Neuroinflammation-Mediated Neurodegenerative Disorders. Life (Basel) 2024; 14:504. [PMID: 38672774 PMCID: PMC11051149 DOI: 10.3390/life14040504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Neuroinflammation is the major cause of neurodegenerative disorders such as Alzheimer's and Parkinson's disease. Currently available drugs present relatively low efficacy and are not capable of modifying the course of the disease or delaying its progression. Identifying well-tolerated and brain-penetrant agents of plant origin could fulfil the pressing need for novel treatment techniques for neuroinflammation. Attention has been drawn to a large family of flavonoids in citrus fruits, which may function as strong nutraceuticals in slowing down the development and progression of neuroinflammation. This review is aimed at elucidating and summarizing the effects of the flavonoid tangeretin (TAN) in the management of neuroinflammation-mediated neurodegenerative disorders. A literature survey was performed using various resources, including ScienceDirect, PubMed, Google Scholar, Springer, and Web of Science. The data revealed that TAN exhibited immense neuroprotective effects in addition to its anti-oxidant, anti-diabetic, and peroxisome proliferator-activated receptor-γ agonistic effects. The effects of TAN are mainly mediated through the inhibition of oxidative and inflammatory pathways via regulating multiple signaling pathways, including c-Jun N-terminal kinase, phosphoinositide 3-kinase, mitogen-activated protein kinase, nuclear factor erythroid-2-related factor 2, extracellular-signal-regulated kinase, and CRE-dependent transcription. In conclusion, the citrus flavonoid TAN has the potential to prevent neuronal death mediated by neuroinflammatory pathways and can be developed as an auxiliary therapeutic agent in the management of neurodegenerative disorders.
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Affiliation(s)
- Irshad Wani
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, India
| | - Sushruta Koppula
- College of Biomedical and Health Science, Konkuk University, Chungju-si 380-701, Republic of Korea;
| | - Aayushi Balda
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, India
| | - Dithu Thekkekkara
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, India
| | - Ankush Jamadagni
- Fortem Biosciences Private Limited (Ayurvibes), No. 24, Attur, 4th Cross, Tirumala Nagar, A Block, Bangalore 560064, India
| | - Prathamesh Walse
- Fortem Biosciences Private Limited (Ayurvibes), No. 24, Attur, 4th Cross, Tirumala Nagar, A Block, Bangalore 560064, India
| | | | - Spandana Rajendra Kopalli
- Department of Integrated Bioscience and Biotechnology, Sejong University, Gwangjin-gu, Seoul 05006, Republic of Korea
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Niu XY, Xie XX, Tuo HZ, Lv CP, Huang YR, Zhu J, Liang SY, Du XY, Yang CG, Hou SJ, Sun XY, Li LJ, Cui F, Huang QX, Jia YB, Wang YJ, Liu RT. Thrombomodulin reduces α-synuclein generation and ameliorates neuropathology in a mouse model of Parkinson's disease. Cell Death Discov 2024; 10:167. [PMID: 38589400 PMCID: PMC11002034 DOI: 10.1038/s41420-024-01939-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 03/23/2024] [Accepted: 03/28/2024] [Indexed: 04/10/2024] Open
Abstract
The neurotoxic α-synuclein (α-syn) oligomers play an important role in the occurrence and development of Parkinson's disease (PD), but the factors affecting α-syn generation and neurotoxicity remain unclear. We here first found that thrombomodulin (TM) significantly decreased in the plasma of PD patients and brains of A53T α-syn mice, and the increased TM in primary neurons reduced α-syn generation by inhibiting transcription factor p-c-jun production through Erk1/2 signaling pathway. Moreover, TM decreased α-syn neurotoxicity by reducing the levels of oxidative stress and inhibiting PAR1-p53-Bax signaling pathway. In contrast, TM downregulation increased the expression and neurotoxicity of α-syn in primary neurons. When TM plasmids were specifically delivered to neurons in the brains of A53T α-syn mice by adeno-associated virus (AAV), TM significantly reduced α-syn expression and deposition, and ameliorated the neuronal apoptosis, oxidative stress, gliosis and motor deficits in the mouse models, whereas TM knockdown exacerbated these neuropathology and motor dysfunction. Our present findings demonstrate that TM plays a neuroprotective role in PD pathology and symptoms, and it could be a novel therapeutic target in efforts to combat PD. Schematic representation of signaling pathways of TM involved in the expression and neurotoxicity of α-syn. A TM decreased RAGE, and resulting in the lowered production of p-Erk1/2 and p-c-Jun, and finally reduce α-syn generation. α-syn oligomers which formed from monomers increase the expression of p-p38, p53, C-caspase9, C-caspase3 and Bax, decrease the level of Bcl-2, cause mitochondrial damage and lead to oxidative stress, thus inducing neuronal apoptosis. TM can reduce intracellular oxidative stress and inhibit p53-Bax signaling by activating APC and PAR-1. B The binding of α-syn oligomers to TLR4 may induce the expression of IL-1β, which is subsequently secreted into the extracellular space. This secreted IL-1β then binds to its receptor, prompting p65 to translocate from the cytoplasm into the nucleus. This translocation downregulates the expression of KLF2, ultimately leading to the suppression of TM expression. By Figdraw.
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Affiliation(s)
- Xiao-Yun Niu
- College of Life Science, Ningxia University, Yinchuan, Ningxia, China
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Xi-Xiu Xie
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Hou-Zhen Tuo
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Cui-Ping Lv
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Ya-Ru Huang
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Jie Zhu
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Shi-Yu Liang
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Xiao-Yu Du
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Cheng-Gang Yang
- Department of BigData, Beijing Medintell Bioinformatic Technology Co., LTD, Beijing, China
| | - Sheng-Jie Hou
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Xiao-Ying Sun
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Ling-Jie Li
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Fang Cui
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Qi-Xin Huang
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Ying-Bo Jia
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Yu-Jiong Wang
- College of Life Science, Ningxia University, Yinchuan, Ningxia, China.
| | - Rui-Tian Liu
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China.
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15
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Edison P. Astroglial activation: Current concepts and future directions. Alzheimers Dement 2024; 20:3034-3053. [PMID: 38305570 PMCID: PMC11032537 DOI: 10.1002/alz.13678] [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: 08/24/2023] [Revised: 11/27/2023] [Accepted: 12/11/2023] [Indexed: 02/03/2024]
Abstract
Astrocytes are abundantly and ubiquitously expressed cell types with diverse functions throughout the central nervous system. Astrocytes show remarkable plasticity and exhibit morphological, molecular, and functional remodeling in response to injury, disease, or infection of the central nervous system, as evident in neurodegenerative diseases. Astroglial mediated inflammation plays a prominent role in the pathogenesis of neurodegenerative diseases. This review focus on the role of astrocytes as essential players in neuroinflammation and discuss their morphological and functional heterogeneity in the normal central nervous system and explore the spatial and temporal variations in astroglial phenotypes observed under different disease conditions. This review discusses the intimate relationship of astrocytes to pathological hallmarks of neurodegenerative diseases. Finally, this review considers the putative therapeutic strategies that can be deployed to modulate the astroglial functions in neurodegenerative diseases. HIGHLIGHTS: Astroglia mediated neuroinflammation plays a key role in the pathogenesis of neurodegenerative diseases. Activated astrocytes exhibit diverse phenotypes in a region-specific manner in brain and interact with β-amyloid, tau, and α-synuclein species as well as with microglia and neuronal circuits. Activated astrocytes are likely to influence the trajectory of disease progression of neurodegenerative diseases, as determined by the stage of disease, individual susceptibility, and state of astroglial priming. Modulation of astroglial activation may be a therapeutic strategy at various stages in the trajectory of neurodegenerative diseases to modify the disease course.
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Affiliation(s)
- Paul Edison
- Division of NeurologyDepartment of Brain SciencesFaculty of Medicine, Imperial College LondonLondonUK
- Division of Psychological medicine and clinical neurosciencesSchool of Medicine, Cardiff UniversityWalesUK
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16
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Reich N, Hölscher C. Cholecystokinin (CCK): a neuromodulator with therapeutic potential in Alzheimer's and Parkinson's disease. Front Neuroendocrinol 2024; 73:101122. [PMID: 38346453 DOI: 10.1016/j.yfrne.2024.101122] [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: 11/24/2023] [Revised: 01/04/2024] [Accepted: 01/25/2024] [Indexed: 02/16/2024]
Abstract
Cholecystokinin (CCK) is a neuropeptide modulating digestion, glucose levels, neurotransmitters and memory. Recent studies suggest that CCK exhibits neuroprotective effects in Alzheimer's disease (AD) and Parkinson's disease (PD). Thus, we review the physiological function and therapeutic potential of CCK. The neuropeptide facilitates hippocampal glutamate release and gates GABAergic basket cell activity, which improves declarative memory acquisition, but inhibits consolidation. Cortical CCK alters recognition memory and enhances audio-visual processing. By stimulating CCK-1 receptors (CCK-1Rs), sulphated CCK-8 elicits dopamine release in the substantia nigra and striatum. In the mesolimbic pathway, CCK release is triggered by dopamine and terminates reward responses via CCK-2Rs. Importantly, activation of hippocampal and nigral CCK-2Rs is neuroprotective by evoking AMPK activation, expression of mitochondrial fusion modulators and autophagy. Other benefits include vagus nerve/CCK-1R-mediated expression of brain-derived neurotrophic factor, intestinal protection and suppression of inflammation. We also discuss caveats and the therapeutic combination of CCK with other peptide hormones.
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Affiliation(s)
- Niklas Reich
- The ALBORADA Drug Discovery Institute, University of Cambridge, Island Research Building, Cambridge Biomedical Campus, Hills Road, Cambridge CB2 0AH, UK; Faculty of Health and Medicine, Biomedical & Life Sciences Division, Lancaster University, Lancaster LA1 4YQ, UK.
| | - Christian Hölscher
- Second associated Hospital, Neurology Department, Shanxi Medical University, Taiyuan, Shanxi, China; Henan Academy of Innovations in Medical Science, Neurodegeneration research group, Xinzhen, Henan province, China
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17
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Nagayach A, Wang C. Autophagy in neural stem cells and glia for brain health and diseases. Neural Regen Res 2024; 19:729-736. [PMID: 37843206 PMCID: PMC10664120 DOI: 10.4103/1673-5374.382227] [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: 04/10/2023] [Revised: 06/19/2023] [Accepted: 07/14/2023] [Indexed: 10/17/2023] Open
Abstract
Autophagy is a multifaceted cellular process that not only maintains the homeostatic and adaptive responses of the brain but is also dynamically involved in the regulation of neural cell generation, maturation, and survival. Autophagy facilities the utilization of energy and the microenvironment for developing neural stem cells. Autophagy arbitrates structural and functional remodeling during the cell differentiation process. Autophagy also plays an indispensable role in the maintenance of stemness and homeostasis in neural stem cells during essential brain physiology and also in the instigation and progression of diseases. Only recently, studies have begun to shed light on autophagy regulation in glia (microglia, astrocyte, and oligodendrocyte) in the brain. Glial cells have attained relatively less consideration despite their unquestioned influence on various aspects of neural development, synaptic function, brain metabolism, cellular debris clearing, and restoration of damaged or injured tissues. Thus, this review composes pertinent information regarding the involvement of autophagy in neural stem cells and glial regulation and the role of this connexion in normal brain functions, neurodevelopmental disorders, and neurodegenerative diseases. This review will provide insight into establishing a concrete strategic approach for investigating pathological mechanisms and developing therapies for brain diseases.
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Affiliation(s)
- Aarti Nagayach
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Chenran Wang
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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18
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Seo Y, Kim DK, Park J, Park SJ, Park JJ, Cheon JH, Kim TI. A Comprehensive Understanding of Post-Translational Modification of Sox2 via Acetylation and O-GlcNAcylation in Colorectal Cancer. Cancers (Basel) 2024; 16:1035. [PMID: 38473392 DOI: 10.3390/cancers16051035] [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: 01/31/2024] [Revised: 02/24/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024] Open
Abstract
Aberrant expression of the pluripotency-associated transcription factor Sox2 is associated with poor prognosis in colorectal cancer (CRC). We investigated the regulatory roles of major post-translational modifications in Sox2 using two CRC cell lines, SW480 and SW620, derived from the same patient but with low and high Sox2 expression, respectively. Acetylation of K75 in the Sox2 nuclear export signal was relatively increased in SW480 cells and promotes Sox2 nucleocytoplasmic shuttling and proteasomal degradation of Sox2. LC-MS-based proteomics analysis identified HDAC4 and p300 as binding partners involved in the acetylation-mediated control of Sox2 expression in the nucleus. Sox2 K75 acetylation is mediated by the acetyltransferase activity of CBP/p300 and ACSS3. In SW620 cells, HDAC4 deacetylates K75 and is regulated by miR29a. O-GlcNAcylation on S246, in addition to K75 acetylation, also regulates Sox2 stability. These findings provide insights into the regulation of Sox2 through multiple post-translational modifications and pathways in CRC.
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Affiliation(s)
- Yoojeong Seo
- Division of Gastroenterology, Department of Internal Medicine, Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Dong Keon Kim
- Division of Gastroenterology, Department of Internal Medicine, Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jihye Park
- Division of Gastroenterology, Department of Internal Medicine, Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Soo Jung Park
- Division of Gastroenterology, Department of Internal Medicine, Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jae Jun Park
- Division of Gastroenterology, Department of Internal Medicine, Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Yonsei Cancer Prevention Center, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jae Hee Cheon
- Division of Gastroenterology, Department of Internal Medicine, Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Tae Il Kim
- Division of Gastroenterology, Department of Internal Medicine, Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Yonsei Cancer Prevention Center, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
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19
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Lage L, Rodriguez-Perez AI, Villar-Cheda B, Labandeira-Garcia JL, Dominguez-Meijide A. Angiotensin type 1 receptor activation promotes neuronal and glial alpha-synuclein aggregation and transmission. NPJ Parkinsons Dis 2024; 10:37. [PMID: 38368444 PMCID: PMC10874459 DOI: 10.1038/s41531-024-00650-0] [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: 06/28/2023] [Accepted: 02/02/2024] [Indexed: 02/19/2024] Open
Abstract
The brain renin-angiotensin system (RAS) has been related to dopaminergic degeneration, and high expression of the angiotensin II (AngII) type 1 receptor (AT1) gene is a marker of the most vulnerable neurons in humans. However, it is unknown whether AngII/AT1 overactivation affects α-synuclein aggregation and transmission. In vitro, AngII/AT1 activation increased α-synuclein aggregation in dopaminergic neurons and microglial cells, which was related to AngII-induced NADPH-oxidase activation and intracellular calcium raising. In mice, AngII/AT1 activation was involved in MPTP-induced increase in α-synuclein expression and aggregation, as they significantly decreased in mice treated with the AT1 blocker telmisartan and AT1 knockout mice. Cell co-cultures (transwells) revealed strong transmission of α-synuclein from dopaminergic neurons to astrocytes and microglia. AngII induced a higher α-synuclein uptake by microglial cells and an increase in the transfer of α-synuclein among astroglial cells. However, AngII did not increase the release of α-synuclein by neurons. The results further support brain RAS dysregulation as a major mechanism for the progression of Parkinson's disease, and AT1 inhibition and RAS modulation as therapeutic targets.
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Affiliation(s)
- Lucia Lage
- Cellular and Molecular Neurobiology of Parkinson's disease, Research Center for Molecular Medicine and Chronic diseases (CIMUS), IDIS, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Ana I Rodriguez-Perez
- Cellular and Molecular Neurobiology of Parkinson's disease, Research Center for Molecular Medicine and Chronic diseases (CIMUS), IDIS, University of Santiago de Compostela, Santiago de Compostela, Spain
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Begoña Villar-Cheda
- Cellular and Molecular Neurobiology of Parkinson's disease, Research Center for Molecular Medicine and Chronic diseases (CIMUS), IDIS, University of Santiago de Compostela, Santiago de Compostela, Spain
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Jose L Labandeira-Garcia
- Cellular and Molecular Neurobiology of Parkinson's disease, Research Center for Molecular Medicine and Chronic diseases (CIMUS), IDIS, University of Santiago de Compostela, Santiago de Compostela, Spain.
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain.
| | - Antonio Dominguez-Meijide
- Cellular and Molecular Neurobiology of Parkinson's disease, Research Center for Molecular Medicine and Chronic diseases (CIMUS), IDIS, University of Santiago de Compostela, Santiago de Compostela, Spain.
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain.
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20
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Melki R. Disease Mechanisms of Multiple System Atrophy: What a Parallel Between the Form of Pasta and the Alpha-Synuclein Assemblies Involved in MSA and PD Tells Us. CEREBELLUM (LONDON, ENGLAND) 2024; 23:13-21. [PMID: 35657577 PMCID: PMC10864476 DOI: 10.1007/s12311-022-01417-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Intracellular deposits rich in aggregated alpha-synuclein that appear within the central nervous system are intimately associated to Parkinson's disease and multiple system atrophy. While it is understandable that the aggregation of proteins, which share no primary structure identity, such as alpha-synuclein and tau protein, leads to different diseases, that of a given protein yielding distinct pathologies is counterintuitive. This short review relates molecular and mechanistic processes to the observed pathological diversity associated to alpha-synuclein aggregation.
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Affiliation(s)
- Ronald Melki
- Institut Francois Jacob (MIRCen), CEA and Laboratory of Neurodegenerative Diseases, CNRS, 18 Route du Panorama, 92265, Fontenay-Aux-Roses, France.
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Hu C, Yan Y, Jin Y, Yang J, Xi Y, Zhong Z. Decoding the Cellular Trafficking of Prion-like Proteins in Neurodegenerative Diseases. Neurosci Bull 2024; 40:241-254. [PMID: 37755677 PMCID: PMC10838874 DOI: 10.1007/s12264-023-01115-9] [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: 12/20/2022] [Accepted: 07/02/2023] [Indexed: 09/28/2023] Open
Abstract
The accumulation and spread of prion-like proteins is a key feature of neurodegenerative diseases (NDs) such as Alzheimer's disease, Parkinson's disease, or Amyotrophic Lateral Sclerosis. In a process known as 'seeding', prion-like proteins such as amyloid beta, microtubule-associated protein tau, α-synuclein, silence superoxide dismutase 1, or transactive response DNA-binding protein 43 kDa, propagate their misfolded conformations by transforming their respective soluble monomers into fibrils. Cellular and molecular evidence of prion-like propagation in NDs, the clinical relevance of their 'seeding' capacities, and their levels of contribution towards disease progression have been intensively studied over recent years. This review unpacks the cyclic prion-like propagation in cells including factors of aggregate internalization, endo-lysosomal leaking, aggregate degradation, and secretion. Debates on the importance of the role of prion-like protein aggregates in NDs, whether causal or consequent, are also discussed. Applications lead to a greater understanding of ND pathogenesis and increased potential for therapeutic strategies.
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Affiliation(s)
- Chenjun Hu
- Department of Neurology of the Second Affiliated Hospital and Department of Human Anatomy, Histology and Embryology, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Yiqun Yan
- Department of Neurology of the Second Affiliated Hospital and Department of Human Anatomy, Histology and Embryology, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Yanhong Jin
- Department of Neurology of the Second Affiliated Hospital and Department of Human Anatomy, Histology and Embryology, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Jun Yang
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Yongmei Xi
- Division of Human Reproduction and Developmental Genetics, Women's Hospital and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou, 310006, China.
| | - Zhen Zhong
- Department of Neurology of the Second Affiliated Hospital and Department of Human Anatomy, Histology and Embryology, Zhejiang University School of Medicine, Hangzhou, 310058, China.
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22
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Yu Z, Teng Y, Yang J, Yang L. The role of exosomes in adult neurogenesis: implications for neurodegenerative diseases. Neural Regen Res 2024; 19:282-288. [PMID: 37488879 PMCID: PMC10503605 DOI: 10.4103/1673-5374.379036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/12/2023] [Accepted: 05/16/2023] [Indexed: 07/26/2023] Open
Abstract
Exosomes are cup-shaped extracellular vesicles with a lipid bilayer that is approximately 30 to 200 nm in thickness. Exosomes are widely distributed in a range of body fluids, including urine, blood, milk, and saliva. Exosomes exert biological function by transporting factors between different cells and by regulating biological pathways in recipient cells. As an important form of intercellular communication, exosomes are increasingly being investigated due to their ability to transfer bioactive molecules such as lipids, proteins, mRNAs, and microRNAs between cells, and because they can regulate physiological and pathological processes in the central nervous system. Adult neurogenesis is a multistage process by which new neurons are generated and migrate to be integrated into existing neuronal circuits. In the adult brain, neurogenesis is mainly localized in two specialized niches: the subventricular zone adjacent to the lateral ventricles and the subgranular zone of the dentate gyrus. An increasing body of evidence indicates that adult neurogenesis is tightly controlled by environmental conditions with the niches. In recent studies, exosomes released from different sources of cells were shown to play an active role in regulating neurogenesis both in vitro and in vivo, thereby participating in the progression of neurodegenerative disorders in patients and in various disease models. Here, we provide a state-of-the-art synopsis of existing research that aimed to identify the diverse components of exosome cargoes and elucidate the therapeutic potential of exosomal contents in the regulation of neurogenesis in several neurodegenerative diseases. We emphasize that exosomal cargoes could serve as a potential biomarker to monitor functional neurogenesis in adults. In addition, exosomes can also be considered as a novel therapeutic approach to treat various neurodegenerative disorders by improving endogenous neurogenesis to mitigate neuronal loss in the central nervous system.
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Affiliation(s)
- Zhuoyang Yu
- Institute of Neurology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
- Laboratory of Aging Research, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
| | - Yan Teng
- Laboratory of Aging Research, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
| | - Jing Yang
- Institute of Neurology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
- Laboratory of Aging Research, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
| | - Lu Yang
- Institute of Neurology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
- Laboratory of Aging Research, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
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23
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Nassar A, Kodi T, Satarker S, Gurram PC, Fayaz SM, Nampoothiri M. Astrocytic transcription factors REST, YY1, and putative microRNAs in Parkinson's disease and advanced therapeutic strategies. Gene 2024; 892:147898. [PMID: 37832803 DOI: 10.1016/j.gene.2023.147898] [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: 03/13/2023] [Revised: 07/10/2023] [Accepted: 10/10/2023] [Indexed: 10/15/2023]
Abstract
Transcription factors (TF) and microRNAs are regulatory factors in astrocytes and are linked to several Parkinson's disease (PD) progression causes, such as disruption of glutamine transporters in astrocytes and concomitant disrupted glutamine uptake and inflammation. REST, a crucial TF, has been documented as an epigenetic repressor that limits the expression of neuronal genes in non-neural cells. REST activity is significantly linked to its corepressors in astrocytes, specifically histone deacetylases (HDACs), CoREST, and MECP2. Another REST-regulating TF, YY1, has been studied in astrocytes, and its interaction with REST has been investigated. In this review, the molecular processes that support the astrocytic control of REST and YY1 in terms of the regulation of glutamate transporter EAAT2 were addressed in a more detailed and comprehensive manner. Both TFs' function in astrocytes and how astrocyte abnormalities cause PD is still a mystery. Moreover, microRNAs (short non-coding RNAs) are key regulators that have been correlated to the expression and regulation of numerous genes linked to PD. The identification of numerous miRs that are engaged in astrocyte dysfunction that triggers PD has been shown. The term "Gut-brain axis" refers to the two systems' mutual communication. Gut microbial dysbiosis, which mediates an imbalance of the gut-brain axis, might contribute to neurodegenerative illnesses through altered astrocytic regulation. New treatment approaches to modify the gut-brain axis and prevent astrocytic repercussions have also been investigated in this review.
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Affiliation(s)
- Ajmal Nassar
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
| | - Triveni Kodi
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
| | - Sairaj Satarker
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
| | - Prasada Chowdari Gurram
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
| | - S M Fayaz
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
| | - Madhavan Nampoothiri
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
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24
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Giusti V, Kaur G, Giusto E, Civiero L. Brain clearance of protein aggregates: a close-up on astrocytes. Mol Neurodegener 2024; 19:5. [PMID: 38229094 DOI: 10.1186/s13024-024-00703-1] [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: 07/17/2023] [Accepted: 01/05/2024] [Indexed: 01/18/2024] Open
Abstract
Protein misfolding and accumulation defines a prevailing feature of many neurodegenerative disorders, finally resulting in the formation of toxic intra- and extracellular aggregates. Intracellular aggregates can enter the extracellular space and be subsequently transferred among different cell types, thus spreading between connected brain districts.Although microglia perform a predominant role in the removal of extracellular aggregated proteins, mounting evidence suggests that astrocytes actively contribute to the clearing process. However, the molecular mechanisms used by astrocytes to remove misfolded proteins are still largely unknown.Here we first provide a brief overview of the progressive transition from soluble monomers to insoluble fibrils that characterizes amyloid proteins, referring to α-Synuclein and Tau as archetypical examples. We then highlight the mechanisms at the basis of astrocyte-mediated clearance with a focus on their potential ability to recognize, collect, internalize and digest extracellular protein aggregates. Finally, we explore the potential of targeting astrocyte-mediated clearance as a future therapeutic approach for the treatment of neurodegenerative disorders characterized by protein misfolding and accumulation.
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Affiliation(s)
| | - Gurkirat Kaur
- Department of Biology, University of Padova, Padua, Italy
| | | | - Laura Civiero
- IRCCS San Camillo Hospital, Venice, Italy.
- Department of Biology, University of Padova, Padua, Italy.
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25
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Wei R, Wei P, Yuan H, Yi X, Aschner M, Jiang YM, Li SJ. Inflammation in Metal-Induced Neurological Disorders and Neurodegenerative Diseases. Biol Trace Elem Res 2024:10.1007/s12011-023-04041-z. [PMID: 38206494 DOI: 10.1007/s12011-023-04041-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 12/23/2023] [Indexed: 01/12/2024]
Abstract
Essential metals play critical roles in maintaining human health as they participate in various physiological activities. Nonetheless, both excessive accumulation and deficiency of these metals may result in neurotoxicity secondary to neuroinflammation and the activation of microglia and astrocytes. Activation of these cells can promote the release of pro-inflammatory cytokines. It is well known that neuroinflammation plays a critical role in metal-induced neurotoxicity as well as the development of neurological disorders, such as Alzheimer's disease (AD), Parkinson's disease (PD), and multiple sclerosis (MS). Initially seen as a defense mechanism, persistent inflammatory responses are now considered harmful. Astrocytes and microglia are key regulators of neuroinflammation in the central nervous system, and their excessive activation may induce sustained neuroinflammation. Therefore, in this review, we aim to emphasize the important role and molecular mechanisms underlying metal-induced neurotoxicity. Our objective is to raise the awareness on metal-induced neuroinflammation in neurological disorders. However, it is not only just neuroinflammation that different metals could induce; they can also cause harm to the nervous system through oxidative stress, apoptosis, and autophagy, to name a few. The primary pathophysiological mechanism by which these metals induce neurological disorders remains to be determined. In addition, given the various pathways through which individuals are exposed to metals, it is necessary to also consider the effects of co-exposure to multiple metals on neurological disorders.
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Affiliation(s)
- Ruokun Wei
- Toxicology Department, School of Public Health, Guangxi Medical University, 22 Shuang-yong Rd., Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, 22 Shuang-yong Rd., Nanning, 530021, Guangxi, China
| | - Peiqi Wei
- Toxicology Department, School of Public Health, Guangxi Medical University, 22 Shuang-yong Rd., Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, 22 Shuang-yong Rd., Nanning, 530021, Guangxi, China
| | - Haiyan Yuan
- Toxicology Department, School of Public Health, Guangxi Medical University, 22 Shuang-yong Rd., Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, 22 Shuang-yong Rd., Nanning, 530021, Guangxi, China
| | - Xiang Yi
- Toxicology Department, School of Public Health, Guangxi Medical University, 22 Shuang-yong Rd., Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, 22 Shuang-yong Rd., Nanning, 530021, Guangxi, China
| | - Michael Aschner
- The Department of Molecular Pharmacology at Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Yue-Ming Jiang
- Toxicology Department, School of Public Health, Guangxi Medical University, 22 Shuang-yong Rd., Nanning, 530021, China.
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, 22 Shuang-yong Rd., Nanning, 530021, Guangxi, China.
| | - Shao-Jun Li
- Toxicology Department, School of Public Health, Guangxi Medical University, 22 Shuang-yong Rd., Nanning, 530021, China.
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, 22 Shuang-yong Rd., Nanning, 530021, Guangxi, China.
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26
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Bhushan B, Singh NK. Role of Astrogliosis in the Pathogenesis of Parkinson's Disease: Insights into Astrocytic Nrf2 Pathway as a Potential Therapeutic Target. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2024; 23:1015-1029. [PMID: 37817521 DOI: 10.2174/0118715273270473231002104610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/21/2023] [Accepted: 08/31/2023] [Indexed: 10/12/2023]
Abstract
Recently, Parkinson's disease (PD) has become a remarkable burden on families and society with an acceleration of population aging having several pathological hallmarks such as dopaminergic neuronal loss of the substantia nigra pars compacta, α-synucleinopathy, neuroinflammation, autophagy, last but not the least astrogliosis. Astrocyte, star-shaped glial cells perform notable physiological functions in the brain through several molecular and cellular mechanisms including nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway. It has been well established that the downregulation of the astrocytic Nrf2 signaling pathway plays a crucial role in the pathogenesis of PD because it is a master regulator of cellular defense mechanism along with a regulator of numerous detoxifying and antioxidant enzymes gene expression. Fascinatingly, upregulation of the astrocytic Nrf2 signaling pathway attenuates the degeneration of nigrostriatal neurons, restores neuronal proliferation, rejuvenates astrocytic functions, and exhibits neuroprotective effects via numerous cellular and molecular mechanisms in the PD-like brain of the experimental animal. Here, we discuss the numerous in-vitro and in-vivo studies that evaluate the neuroprotective potential of the astrocytic Nrf2 signaling pathway against experimentally-induced PD-like manifestation. In conclusion, based on available preclinical reports, it can be assumed that the astrocytic Nrf2 signaling pathway could be an alternative target in the drug discovery process for the prevention, management, and treatment of PD.
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Affiliation(s)
- Bharat Bhushan
- Division of Pharmacology, Institute of Pharmaceutical Research, GLA University, NH-19, Mathura-Delhi Road, Chaumuhan, Mathura 281406, U.P. India
| | - Niraj Kumar Singh
- Division of Pharmacology, Institute of Pharmaceutical Research, GLA University, NH-19, Mathura-Delhi Road, Chaumuhan, Mathura 281406, U.P. India
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27
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Cheng A, Jia W, Finkelstein DI, Stefanova N, Wang H, Sasaki T, Kawahata I, Fukunaga K. Pharmacological inhibition of FABP7 by MF 6 counteracts cerebellum dysfunction in an experimental multiple system atrophy mouse model. Acta Pharmacol Sin 2024; 45:66-75. [PMID: 37605049 PMCID: PMC10770047 DOI: 10.1038/s41401-023-01138-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/09/2023] [Indexed: 08/23/2023] Open
Abstract
Multiple system atrophy (MSA) is a rare, fatal neurodegenerative disease characterized by the accumulation of misfolded α-synuclein (αSyn) in glial cells, leading to the formation of glial cytoplasmic inclusions (GCI). We previous found that glial fatty acid-binding protein 7 (FABP7) played a crucial role in alpha-synuclein (αSyn) aggregation and toxicity in oligodendrocytes, inhibition of FABP7 by a specific inhibitor MF 6 reduced αSyn aggregation and enhanced cell viability in cultured cell lines and mouse oligodendrocyte progenitor cells. In this study we investigated whether MF 6 ameliorated αSyn-associated pathological processes in PLP-hαSyn transgenic mice (PLP-αSyn mice), a wildly used MSA mouse model with overexpressing αSyn in oligodendroglia under the proteolipid protein (PLP) promoter. PLP-αSyn mice were orally administered MF6 (0.1, 1 mg ·kg-1 ·d-1) for 32 days starting from the age of 6 months. We showed that oral administration of MF 6 significantly improved motor function assessed in a pole test, and reduced αSyn aggregation levels in both cerebellum and basal ganglia of PLP-αSyn mice. Moreover, MF 6 administration decreased oxidative stress and inflammation levels, and improved myelin levels and Purkinje neuron morphology in the cerebellum. By using mouse brain tissue slices and αSyn aggregates-treated KG-1C cells, we demonstrated that MF 6 reduced αSyn propagation to Purkinje neurons and oligodendrocytes through regulating endocytosis. Overall, these results suggest that MF 6 improves cerebellar functions in MSA by inhibiting αSyn aggregation and propagation. We conclude that MF 6 is a promising compound that warrants further development for the treatment of MSA.
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Affiliation(s)
- An Cheng
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan.
- Department of Ophthalmology, School of Medicine, University of California, San Francisco, CA, USA.
| | - Wenbin Jia
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - David I Finkelstein
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Nadia Stefanova
- Laboratory for Translational Neurodegeneration Research, Division of Neurobiology, Department of Neurology, Medical University of Innsbruck, 6020, Innsbruck, Austria
| | - Haoyang Wang
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Takuya Sasaki
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Ichiro Kawahata
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Kohji Fukunaga
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan.
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28
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Yarkova ES, Grigor’eva EV, Medvedev SP, Pavlova SV, Zakian SM, Malakhova AA. IPSC-Derived Astrocytes Contribute to In Vitro Modeling of Parkinson's Disease Caused by the GBA1 N370S Mutation. Int J Mol Sci 2023; 25:327. [PMID: 38203497 PMCID: PMC10779194 DOI: 10.3390/ijms25010327] [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: 12/04/2023] [Revised: 12/22/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder that ranks second in prevalence after Alzheimer's disease. The number of PD diagnoses increases annually. Nevertheless, modern PD treatments merely mitigate symptoms rather than preventing neurodegeneration progression. The creation of an appropriate model to thoroughly study the mechanisms of PD pathogenesis remains a current challenge in biomedicine. Recently, there has been an increase in data regarding the involvement of not only dopaminergic neurons of the substantia nigra but also astrocytes in the pathogenesis of PD. Cell models based on induced pluripotent stem cells (iPSCs) and their differentiated derivatives are a useful tool for studying the contribution and interaction of these two cell types in PD. Here, we generated two iPSC lines, ICGi034-B and ICGi034-C, by reprogramming peripheral blood mononuclear cells of a patient with a heterozygous mutation c.1226A>G (p.N370S) in the GBA1 gene by non-integrating episomal vectors encoding OCT4, KLF4, L-MYC, SOX2, LIN28, and mp53DD. The iPSC lines demonstrate the expression of pluripotency markers and are capable of differentiating into three germ layers. We differentiated the ICGi034-B and ICGi034-C iPSC lines into astrocytes. This resulting cell model can be used to study the involvement of astrocytes in the pathogenesis of GBA-associated PD.
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Affiliation(s)
- Elena S. Yarkova
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia;
| | - Elena V. Grigor’eva
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (S.P.M.); (S.V.P.); (S.M.Z.); (A.A.M.)
| | - Sergey P. Medvedev
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (S.P.M.); (S.V.P.); (S.M.Z.); (A.A.M.)
| | - Sophia V. Pavlova
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (S.P.M.); (S.V.P.); (S.M.Z.); (A.A.M.)
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Suren M. Zakian
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (S.P.M.); (S.V.P.); (S.M.Z.); (A.A.M.)
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, 630055 Novosibirsk, Russia
| | - Anastasia A. Malakhova
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (S.P.M.); (S.V.P.); (S.M.Z.); (A.A.M.)
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29
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Yao XY, Guan LN, Chen Q, Ren C. LRRK2 G2019S and Parkinson's disease: insight from Neuroinflammation. Postgrad Med J 2023; 100:4-11. [PMID: 37777187 DOI: 10.1093/postmj/qgad080] [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: 06/03/2023] [Revised: 08/08/2023] [Accepted: 09/01/2023] [Indexed: 10/02/2023]
Abstract
The multiple hypothesis holds that the pathogenesis of Parkinson's disease (PD) requires many factors such as heredity, environment and ageing. Mutations in Leucine-rich repeat kinase 2 (LRRK2) are recognized the risk factors of PD, and closely related to sporadic and familial PD and can regulate a variety of cellular pathways and processes. An Increasing number of studies has shown that glial hyperactivation-mediated neuroinflammation participates in dopaminergic neuron degeneration and pathogenesis of PD. LRRK2 is essential to the regulaton of chronic inflammation, especially for the central nervous system. The review spotlights on the novel development of LRRK2 on microglia and astrocytes, and explore their potential therapeutic targets, in order to provide a new insights in PD. Key messages: What is already known on this topic The G2019S mutation of LRRK2 is now recognised as a pathogenic mutation in PD. Previous studies have focused on the relationship between neurons and LRRK2 G2019S. What this study adds Neuroinflammation mediated by LRRK2 G2019S of glial cells affects the progress and development of PD and attention must be paid to the role of LRRK2 G2019S in glial cells in PD. How this study might affect research, practice or policy Developing anti-inflammatory drugs from the perspective of LRRK2 G2019S of glial cells is a new direction for the treatment of PD.
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Affiliation(s)
- Xiao-Yan Yao
- Department of Neurology, Yantai Yuhuangding Hospital, Qingdao University, Yantai, 264000, China
| | - Li-Na Guan
- Department of Neurosurgical Intensive Care Unit, Yantai Yuhuangding Hospital, Qingdao University, Yantai, 264000, China
| | - Qi Chen
- Department of Neurology, Yantai Yuhuangding Hospital, Qingdao University, Yantai, 264000, China
| | - Chao Ren
- Department of Neurology, Yantai Yuhuangding Hospital, Qingdao University, Yantai, 264000, China
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, 264000, China
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30
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Song LZX, Xu N, Yu Z, Yang H, Xu CC, Qiu Z, Dai JW, Xu B, Hu XM. The effect of electroacupuncture at ST25 on Parkinson's disease constipation through regulation of autophagy in the enteric nervous system. Anat Rec (Hoboken) 2023; 306:3214-3228. [PMID: 36655864 DOI: 10.1002/ar.25148] [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: 08/06/2022] [Revised: 11/22/2022] [Accepted: 11/29/2022] [Indexed: 01/20/2023]
Abstract
The effectiveness and safety of electroacupuncture (EA) for constipation have been confirmed by numerous clinical studies and experiments, and there are also studies on the efficacy of EA for Parkinson's disease (PD) motor symptoms. However, there are few researches on EA for PD constipation. Autophagy is thought to be involved in the mechanistic process of EA in the central nervous system (CNS) intervention in Parkinson's pathology. However, whether it has the same effect on the enteric nervous system (ENS) has not been elucidated. Therefore, we investigated whether EA at Tianshu (ST25) acupoint promotes the clearance of α-Syn and damaged mitochondria aggregated in the ENS in a model of rotenone-induced PD constipation. This study evaluated constipation symptoms by stool characteristics, excretion volume, and water content, and the expression levels of colonic ATG5, LC3II, and Parkin were detected by Western Blot (WB) and Real-Time Quantitative PCR (RT-qPCR). The relationship between the location of α-Syn and Parkin in the colonic ENS was observed by immunofluorescence (IF). The results showed that EA intervention significantly relieved the symptoms of rotenone-induced constipation in PD rats, reversed the rotenone-induced down-regulation of colonic ATG5, LC3II, and Parkin expression, and the positional relationship between colonic α-Syn and Parkin proved to be highly correlated. It is suggested that EA might be helpful in treating PD constipation by modulating Parkin-induced mitochondrial autophagy.
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Affiliation(s)
- Li-Zhe-Xiong Song
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Na Xu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhi Yu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Hui Yang
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Cheng-Cheng Xu
- Nanjing Hospital of Traditional Chinese Medicine, Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing, China
| | - Zi Qiu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jing-Wen Dai
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Bin Xu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xuan-Ming Hu
- Nanjing Hospital of Traditional Chinese Medicine, Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing, China
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31
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Kon T, Forrest SL, Lee S, Martinez-Valbuena I, Li J, Nassir N, Uddin MJ, Lang AE, Kovacs GG. Neuronal SNCA transcription during Lewy body formation. Acta Neuropathol Commun 2023; 11:185. [PMID: 37996943 PMCID: PMC10666428 DOI: 10.1186/s40478-023-01687-7] [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: 09/19/2023] [Accepted: 11/10/2023] [Indexed: 11/25/2023] Open
Abstract
Misfolded α-synuclein (α-syn) is believed to contribute to neurodegeneration in Lewy body disease (LBD) based on considerable evidence including a gene-dosage effect observed in relation to point mutations and multiplication of SNCA in familial Parkinson's disease. A contradictory concept proposes early loss of the physiological α-syn as the major driver of neurodegeneration. There is a paucity of data on SNCA transcripts in various α-syn immunoreactive cytopathologies. Here, the total cell body, nuclear, and cytoplasmic area density of SNCA transcripts in neurons without and with various α-syn immunoreactive cytopathologies in the substantia nigra and amygdala in autopsy cases of LBD (n = 5) were evaluated using RNAscope combined with immunofluorescence for disease-associated α-syn. Single-nucleus RNA sequencing was performed to elucidate cell-type specific SNCA expression in non-diseased frontal cortex (n = 3). SNCA transcripts were observed in the neuronal nucleus and cytoplasm in neurons without α-syn, those containing punctate α-syn immunoreactivity, irregular-shaped compact inclusion, and brainstem-type and cortical-type LBs. However, SNCA transcripts were only rarely found in the α-syn immunoreactive LB areas. The total cell body SNCA transcript area densities in neurons with punctate α-syn immunoreactivity were preserved but were significantly reduced in neurons with compact α-syn inclusions both in the substantia nigra and amygdala. This reduction was also observed in the cytoplasm but not in the nucleus. Only single SNCA transcripts were detected in astrocytes with or without disease-associated α-syn immunoreactivity in the amygdala. Single-nucleus RNA sequencing revealed that excitatory and inhibitory neurons, oligodendrocyte progenitor cells, oligodendrocytes, and homeostatic microglia expressed SNCA transcripts, while expression was largely absent in astrocytes and microglia. The preserved cellular SNCA expression in the more abundant non-Lewy body type α-syn cytopathologies might provide a pool for local protein production that can aggregate and serve as a seed for misfolded α-syn. Successful segregation of disease-associated α-syn is associated with the exhaustion of SNCA production in the terminal cytopathology, the Lewy body. Our observations inform therapy development focusing on targeting SNCA transcription in LBD.
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Affiliation(s)
- Tomoya Kon
- Tanz Centre for Research in Neurodegenerative Disease, University of Toronto, 60 Leonard Ave., Rm 6KD414, Tanz CRND, Krembil Discovery Tower, Toronto, ON, M5T 0S8, Canada
- Department of Neurology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shelley L Forrest
- Tanz Centre for Research in Neurodegenerative Disease, University of Toronto, 60 Leonard Ave., Rm 6KD414, Tanz CRND, Krembil Discovery Tower, Toronto, ON, M5T 0S8, Canada
- Dementia Research Centre, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia
- Laboratory Medicine Program and Krembil Brain Institute, University Health Network, Toronto, ON, Canada
| | - Seojin Lee
- Tanz Centre for Research in Neurodegenerative Disease, University of Toronto, 60 Leonard Ave., Rm 6KD414, Tanz CRND, Krembil Discovery Tower, Toronto, ON, M5T 0S8, Canada
| | - Ivan Martinez-Valbuena
- Tanz Centre for Research in Neurodegenerative Disease, University of Toronto, 60 Leonard Ave., Rm 6KD414, Tanz CRND, Krembil Discovery Tower, Toronto, ON, M5T 0S8, Canada
| | - Jun Li
- Tanz Centre for Research in Neurodegenerative Disease, University of Toronto, 60 Leonard Ave., Rm 6KD414, Tanz CRND, Krembil Discovery Tower, Toronto, ON, M5T 0S8, Canada
| | | | - Mohammed J Uddin
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, UAE
- GenomeArc Inc, Toronto, ON, Canada
| | - Anthony E Lang
- Tanz Centre for Research in Neurodegenerative Disease, University of Toronto, 60 Leonard Ave., Rm 6KD414, Tanz CRND, Krembil Discovery Tower, Toronto, ON, M5T 0S8, Canada
- Edmund J Safra Program in Parkinson's Disease and Rossy Progressive Supranuclear Palsy Centre, Toronto Western Hospital, Toronto, ON, Canada
- Department of Medicine, Division of Neurology, University of Toronto, Toronto, ON, Canada
| | - Gabor G Kovacs
- Tanz Centre for Research in Neurodegenerative Disease, University of Toronto, 60 Leonard Ave., Rm 6KD414, Tanz CRND, Krembil Discovery Tower, Toronto, ON, M5T 0S8, Canada.
- Dementia Research Centre, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia.
- Laboratory Medicine Program and Krembil Brain Institute, University Health Network, Toronto, ON, Canada.
- Edmund J Safra Program in Parkinson's Disease and Rossy Progressive Supranuclear Palsy Centre, Toronto Western Hospital, Toronto, ON, Canada.
- Department of Medicine, Division of Neurology, University of Toronto, Toronto, ON, Canada.
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.
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He KJ, Zhang JB, Liu JY, Zhao FL, Yao XY, Tang YT, Zhang JR, Cheng XY, Hu LF, Wang F, Liu CF. LRRK2 G2019S promotes astrocytic inflammation induced by oligomeric α-synuclein through NF-κB pathway. iScience 2023; 26:108130. [PMID: 37876795 PMCID: PMC10590863 DOI: 10.1016/j.isci.2023.108130] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 08/07/2023] [Accepted: 09/30/2023] [Indexed: 10/26/2023] Open
Abstract
Parkinson's disease (PD) is characterized by the irreversible loss of dopaminergic neurons and the accumulation of α-synuclein in Lewy bodies. The oligomeric α-synuclein (O-αS) is the most toxic form of α-synuclein species, and it has been reported to be a robust inflammatory mediator. Mutations in Leucine-Rich Repeat Kinase 2 (LRRK2) are also genetically linked to PD and neuroinflammation. However, how O-αS and LRRK2 interact in glial cells remains unclear. Here, we reported that LRRK2 G2019S mutation, which is one of the most frequent causes of familial PD, enhanced the effects of O-αS on astrocytes both in vivo and in vitro. Meanwhile, inhibition of LRRK2 kinase activity could relieve the inflammatory effects of both LRRK2 G2019S and O-αS. We also demonstrated that nuclear factor κB (NF-κB) pathway might be involved in the neuroinflammatory responses. These findings revealed that inhibition of LRRK2 kinase activity may be a viable strategy for suppressing neuroinflammation in PD.
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Affiliation(s)
- Kai-Jie He
- Department of Neurology and Clinical Research Center of Neurological Disease, the Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, China
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jin-Bao Zhang
- Department of Neurology and Clinical Research Center of Neurological Disease, the Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, China
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jun-Yi Liu
- Department of Neurology, Dushu Lake Hospital Affilicated to Soochow University, Suzhou, Jiangsu 215123, China
| | - Feng-Lun Zhao
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, Jiangsu 215123, China
| | - Xiao-Yu Yao
- Department of Neurology and Clinical Research Center of Neurological Disease, the Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, China
| | - Yu-Ting Tang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jin-Ru Zhang
- Department of Neurology and Clinical Research Center of Neurological Disease, the Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, China
| | - Xiao-Yu Cheng
- Department of Neurology and Clinical Research Center of Neurological Disease, the Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, China
| | - Li-Fang Hu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, Jiangsu 215123, China
| | - Fen Wang
- Department of Neurology and Clinical Research Center of Neurological Disease, the Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, China
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, Jiangsu 215123, China
| | - Chun-Feng Liu
- Department of Neurology and Clinical Research Center of Neurological Disease, the Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, China
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, Jiangsu 215123, China
- Department of Neurology, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830063, China
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Wang D, Qu S, Zhang Z, Tan L, Chen X, Zhong HJ, Chong CM. Strategies targeting endoplasmic reticulum stress to improve Parkinson's disease. Front Pharmacol 2023; 14:1288894. [PMID: 38026955 PMCID: PMC10667558 DOI: 10.3389/fphar.2023.1288894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
Parkinson's disease (PD) is a common neurodegenerative disorder with motor symptoms, which is caused by the progressive death of dopaminergic (DA) neurons in the substantia nigra pars compacta (SNpc). Accumulating evidence shows that endoplasmic reticulum (ER) stress occurring in the SNpc DA neurons is an early event in the development of PD. ER stress triggers the activation of unfolded protein response (UPR) to reduce stress and restore ER function. However, excessive and continuous ER stress and UPR exacerbate the risk of DA neuron death through crosstalk with other PD events. Thus, ER stress is considered a promising therapeutic target for the treatment of PD. Various strategies targeting ER stress through the modulation of UPR signaling, the increase of ER's protein folding ability, and the enhancement of protein degradation are developed to alleviate neuronal death in PD models. In this review, we summarize the pathological role of ER stress in PD and update the strategies targeting ER stress to improve ER protein homeostasis and PD-related events.
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Affiliation(s)
- Danni Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Shuhui Qu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Zaijun Zhang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, China
| | - Liang Tan
- Department of Neurosurgery, Southwest Hospital, The Third Military Medical University (Army Military Medical University), Chongqing, China
| | - Xiuping Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Hai-Jing Zhong
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, China
| | - Cheong-Meng Chong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
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Lin J, Ou R, Li C, Hou Y, Zhang L, Wei Q, Pang D, Liu K, Jiang Q, Yang T, Xiao Y, Zhao B, Chen X, Song W, Yang J, Wu Y, Shang H. Plasma glial fibrillary acidic protein as a biomarker of disease progression in Parkinson's disease: a prospective cohort study. BMC Med 2023; 21:420. [PMID: 37932720 PMCID: PMC10626747 DOI: 10.1186/s12916-023-03120-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 10/19/2023] [Indexed: 11/08/2023] Open
Abstract
BACKGROUND Reactive astrogliosis has been demonstrated to have a role in Parkinson's disease (PD); however, astrocyte-specific plasma glial fibrillary acidic protein (GFAP)'s correlation with PD progression remains unknown. We aimed to determine whether plasma GFAP can monitor and predict PD progression. METHODS A total of 184 patients with PD and 95 healthy controls (HCs) were included in this prospective cohort study and followed-up for 5 years. Plasma GFAP, amyloid-beta (Aβ), p-tau181, and neurofilament light chain (NfL) were measured at baseline and at 1- and 2-year follow-ups. Motor and non-motor symptoms, activities of daily living, global cognitive function, executive function, and disease stage were evaluated using the Unified Parkinson's Disease Rating Scale (UPDRS) part III, UPDRS-I, UPDRS-II, Montreal Cognitive Assessment (MoCA), Frontal Assessment Battery (FAB), and Hoehn and Yahr (H&Y) scales at each visit, respectively. RESULTS Plasma GFAP levels were higher in patients with PD (mean [SD]: 69.80 [36.18], pg/mL) compared to HCs (mean [SD]: 57.89 [23.54], pg/mL). Higher levels of GFAP were observed in female and older PD patients. The adjusted linear mixed-effects models showed that plasma GFAP levels were significantly associated with UPDRS-I scores (β: 0.006, 95% CI [0.001-0.011], p = 0.027). Higher baseline plasma GFAP correlated with faster increase in UPDRS-I (β: 0.237, 95% CI [0.055-0.419], p = 0.011) and UPDRS-III (β: 0.676, 95% CI [0.023-1.330], p = 0.043) scores and H&Y stage (β: 0.098, 95% CI [0.047-0.149], p < 0.001) and faster decrease in MoCA (β: - 0.501, 95% CI [- 0.768 to - 0.234], p < 0.001) and FAB scores (β: - 0.358, 95% CI [- 0.587 to - 0.129], p = 0.002). Higher baseline plasma GFAP predicted a more rapid progression to postural instability (hazard ratio: 1.009, 95% CI [1.001-1.017], p = 0.033). CONCLUSIONS Plasma GFAP might be a potential biomarker for monitoring and predicting disease progression in PD.
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Affiliation(s)
- Junyu Lin
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Ruwei Ou
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Chunyu Li
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yanbing Hou
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Lingyu Zhang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Qianqian Wei
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Dejiang Pang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Kuncheng Liu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Qirui Jiang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Tianmi Yang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yi Xiao
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Bi Zhao
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Xueping Chen
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Wei Song
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Jing Yang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Ying Wu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Huifang Shang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
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35
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Heo JY, Park AH, Lee MJ, Ryu MJ, Kim YK, Jang YS, Kim SJ, Shin SY, Son HJ, Stein TD, Huh YH, Chung SK, Choi SY, Kim JM, Hwang O, Shong M, Hyeon SJ, Lee J, Ryu H, Kim D, Kweon GR. Crif1 deficiency in dopamine neurons triggers early-onset parkinsonism. Mol Psychiatry 2023; 28:4474-4484. [PMID: 37648779 DOI: 10.1038/s41380-023-02234-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 08/07/2023] [Accepted: 08/16/2023] [Indexed: 09/01/2023]
Abstract
Mitochondrial dysfunction has been implicated in Parkinson's Disease (PD) progression; however, the mitochondrial factors underlying the development of PD symptoms remain unclear. One candidate is CR6-interacting factor1 (CRIF1), which controls translation and membrane insertion of 13 mitochondrial proteins involved in oxidative phosphorylation. Here, we found that CRIF1 mRNA and protein expression were significantly reduced in postmortem brains of elderly PD patients compared to normal controls. To evaluate the effect of Crif1 deficiency, we produced mice lacking the Crif1 gene in dopaminergic neurons (DAT-CRIF1-KO mice). From 5 weeks of age, DAT-CRIF1-KO mice began to show decreased dopamine production with progressive neuronal degeneration in the nigral area. At ~10 weeks of age, they developed PD-like behavioral deficits, including gait abnormalities, rigidity, and resting tremor. L-DOPA, a medication used to treat PD, ameliorated these defects at an early stage, although it was ineffective in older mice. Taken together, the observation that CRIF1 expression is reduced in human PD brains and deletion of CRIF1 in dopaminergic neurons leads to early-onset PD with stepwise PD progression support the conclusion that CRIF1-mediated mitochondrial function is important for the survival of dopaminergic neurons.
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Affiliation(s)
- Jun Young Heo
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
| | - Ah Hyung Park
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Min Joung Lee
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
| | - Min Jeong Ryu
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
| | - Yong Kyung Kim
- Research Center for Endocrine and Metabolic Diseases, Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
| | - Yun Seon Jang
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
| | - Soo Jeong Kim
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
| | - So Yeon Shin
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
| | - Hyo Jin Son
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Thor D Stein
- Boston University Alzheimer's Disease Research Center and Department of Neurology, Boston University School of Medicine, Boston, MA, 02118, USA
- VA Bedford Healthcare System, Bedford, MA, 01730, USA
- VA Boston Healthcare System, Boston, MA, 02130, USA
| | - Yang Hoon Huh
- Electron Microscopy Research center, Korea Basic Science Institute, Cheongju, 28119, Republic of Korea
| | - Sookja K Chung
- Faculty of Medicine & Dr Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau SAR, China
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong SAR, China
| | - Song Yi Choi
- Department of Pathology, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
| | - Jin Man Kim
- Department of Pathology, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea
| | - Onyou Hwang
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Minho Shong
- Graduate School of Medical Science and Education, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Seung Jae Hyeon
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Junghee Lee
- Boston University Alzheimer's Disease Research Center and Department of Neurology, Boston University School of Medicine, Boston, MA, 02118, USA
| | - Hoon Ryu
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.
| | - Daesoo Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea.
| | - Gi Ryang Kweon
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon, 35015, Republic of Korea.
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Nassar A, Satarker S, Gurram PC, Upadhya D, Fayaz SM, Nampoothiri M. Repressor Element-1 Binding Transcription Factor (REST) as a Possible Epigenetic Regulator of Neurodegeneration and MicroRNA-Based Therapeutic Strategies. Mol Neurobiol 2023; 60:5557-5577. [PMID: 37326903 PMCID: PMC10471693 DOI: 10.1007/s12035-023-03437-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/06/2023] [Indexed: 06/17/2023]
Abstract
Neurodegenerative disorders (NDD) have grabbed significant scientific consideration due to their fast increase in prevalence worldwide. The specific pathophysiology of the disease and the amazing changes in the brain that take place as it advances are still the top issues of contemporary research. Transcription factors play a decisive role in integrating various signal transduction pathways to ensure homeostasis. Disruptions in the regulation of transcription can result in various pathologies, including NDD. Numerous microRNAs and epigenetic transcription factors have emerged as candidates for determining the precise etiology of NDD. Consequently, understanding by what means transcription factors are regulated and how the deregulation of transcription factors contributes to neurological dysfunction is important to the therapeutic targeting of pathways that they modulate. RE1-silencing transcription factor (REST) also named neuron-restrictive silencer factor (NRSF) has been studied in the pathophysiology of NDD. REST was realized to be a part of a neuroprotective element with the ability to be tuned and influenced by numerous microRNAs, such as microRNAs 124, 132, and 9 implicated in NDD. This article looks at the role of REST and the influence of various microRNAs in controlling REST function in the progression of Alzheimer's disease (AD), Parkinson's disease (PD), and Huntington's disease (HD) disease. Furthermore, to therapeutically exploit the possibility of targeting various microRNAs, we bring forth an overview of drug-delivery systems to modulate the microRNAs regulating REST in NDD.
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Affiliation(s)
- Ajmal Nassar
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Sairaj Satarker
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Prasada Chowdari Gurram
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Dinesh Upadhya
- Centre for Molecular Neurosciences, Kasturba Medical College Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - S M Fayaz
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Madhavan Nampoothiri
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
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37
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Jurcau A, Andronie-Cioara FL, Nistor-Cseppento DC, Pascalau N, Rus M, Vasca E, Jurcau MC. The Involvement of Neuroinflammation in the Onset and Progression of Parkinson's Disease. Int J Mol Sci 2023; 24:14582. [PMID: 37834030 PMCID: PMC10573049 DOI: 10.3390/ijms241914582] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 09/22/2023] [Accepted: 09/24/2023] [Indexed: 10/15/2023] Open
Abstract
Parkinson's disease is a neurodegenerative disease exhibiting the fastest growth in incidence in recent years. As with most neurodegenerative diseases, the pathophysiology is incompletely elucidated, but compelling evidence implicates inflammation, both in the central nervous system and in the periphery, in the initiation and progression of the disease, although it is not yet clear what triggers this inflammatory response and where it begins. Gut dysbiosis seems to be a likely candidate for the initiation of the systemic inflammation. The therapies in current use provide only symptomatic relief, but do not interfere with the disease progression. Nonetheless, animal models have shown promising results with therapies that target various vicious neuroinflammatory cascades. Translating these therapeutic strategies into clinical trials is still in its infancy, and a series of issues, such as the exact timing, identifying biomarkers able to identify Parkinson's disease in early and pre-symptomatic stages, or the proper indications of genetic testing in the population at large, will need to be settled in future guidelines.
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Affiliation(s)
- Anamaria Jurcau
- Department of Psycho-Neuroscience and Rehabilitation, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (A.J.); (D.C.N.-C.)
| | - Felicia Liana Andronie-Cioara
- Department of Psycho-Neuroscience and Rehabilitation, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (A.J.); (D.C.N.-C.)
| | - Delia Carmen Nistor-Cseppento
- Department of Psycho-Neuroscience and Rehabilitation, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (A.J.); (D.C.N.-C.)
| | - Nicoleta Pascalau
- Department of Psycho-Neuroscience and Rehabilitation, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (A.J.); (D.C.N.-C.)
| | - Marius Rus
- Department of Medical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
| | - Elisabeta Vasca
- Department of Oral Rehabilitation, Faculty of Medicine “Vasile Goldis” Arad, 310025 Arad, Romania
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Wang T, Sun Y, Dettmer U. Astrocytes in Parkinson's Disease: From Role to Possible Intervention. Cells 2023; 12:2336. [PMID: 37830550 PMCID: PMC10572093 DOI: 10.3390/cells12192336] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 10/14/2023] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder characterized by the loss of dopaminergic neurons. While neuronal dysfunction is central to PD, astrocytes also play important roles, both positive and negative, and such roles have not yet been fully explored. This literature review serves to highlight these roles and how the properties of astrocytes can be used to increase neuron survivability. Astrocytes normally have protective functions, such as releasing neurotrophic factors, metabolizing glutamate, transferring healthy mitochondria to neurons, or maintaining the blood-brain barrier. However, in PD, astrocytes can become dysfunctional and contribute to neurotoxicity, e.g., via impaired glutamate metabolism or the release of inflammatory cytokines. Therefore, astrocytes represent a double-edged sword. Restoring healthy astrocyte function and increasing the beneficial effects of astrocytes represents a promising therapeutic approach. Strategies such as promoting neurotrophin release, preventing harmful astrocyte reactivity, or utilizing regional astrocyte diversity may help restore neuroprotection.
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Affiliation(s)
- Tianyou Wang
- Collège Jean-de-Brébeuf, 3200 Chemin de la Côte-Sainte-Catherine, Montreal, QC H3T 1C1, Canada
| | - Yingqi Sun
- Department of Biochemistry, University of Oxford, Oxford OX1 3QU, UK;
| | - Ulf Dettmer
- Ann Romney Center for Neurologic Diseases, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA;
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Chiu YS, Wu KJ, Yu SJ, Wu KL, Wang YS, Lin J, Chu CY, Chen S, Chen H, Hsu SC, Wang Y, Chen YH. Peptide immunization against the C-terminal of alpha-synuclein reduces locomotor activity in mice overexpressing alpha-synuclein. PLoS One 2023; 18:e0291927. [PMID: 37733672 PMCID: PMC10513202 DOI: 10.1371/journal.pone.0291927] [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: 04/23/2023] [Accepted: 09/09/2023] [Indexed: 09/23/2023] Open
Abstract
Abnormal accumulation of alpha-synuclein (αSyn) in the remaining nigra dopaminergic neurons is a common neuropathological feature found in patients with Parkinson's disease (PD). Antibody-based immunotherapy has been considered a potential approach for PD treatment. This study aims to investigate the effectiveness of active immunization against αSyn in a mouse model of PD. Adult mice were immunized with or without a synthetic peptide containing the C-terminal residues of human αSyn and activation epitopes, followed by an intranigral injection of adeno-associated virus vectors for overexpressing human αSyn. Upon the peptide injection, αSyn-specific antibodies were raised, accompanied by degeneration of dopaminergic neurons and motor deficits. Furthermore, the induction of neuroinflammation was postulated by the elevation of astroglial and microglial markers in the immunized mice. Instead of lessening αSyn toxicity, this peptide vaccine caused an increase in the pathogenic species of αSyn. Our data demonstrated the potential adverse effects of active immunization to raise antibodies against the C-terminal fragment of αSyn. This drawback highlights the need for further investigation to weigh the pros and cons of immunotherapy in PD. Applying the αSyn C-terminal peptide vaccine for PD treatment should be cautiously exercised. This study provides valuable insights into the intricate interplay among immune intervention, αSyn accumulation, and neurodegeneration.
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Affiliation(s)
- Yu-Sung Chiu
- Department of Life Science, Fu-Jen Catholic University, New Taipei City, Taiwan
| | - Kuo-Jen Wu
- National Health Research Institutes, Center for Neuropsychiatric Research, Zhunan, Taiwan
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung, Taiwan
| | - Seong-Jin Yu
- National Health Research Institutes, Center for Neuropsychiatric Research, Zhunan, Taiwan
| | - Kun-Lieh Wu
- Department of Electrical Engineering of I-Shou University, Kaohsiung, Taiwan
| | - Yu-Syuan Wang
- National Health Research Institutes, Center for Neuropsychiatric Research, Zhunan, Taiwan
| | - Jing Lin
- Department of Life Science, Fu-Jen Catholic University, New Taipei City, Taiwan
| | - Chia-Ying Chu
- Department of Life Science, Fu-Jen Catholic University, New Taipei City, Taiwan
| | - Shuchun Chen
- Department of Life Science, Fu-Jen Catholic University, New Taipei City, Taiwan
- National Health Research Institutes, Center for Neuropsychiatric Research, Zhunan, Taiwan
| | - Hsi Chen
- National Health Research Institutes, Center for Neuropsychiatric Research, Zhunan, Taiwan
| | - Shu-Ching Hsu
- Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan
- PhD Program in Tissue Engineering and Regenerative Medicine, National Chung Hsing University, Taichung City, Taiwan
- Graduate Institute of Biomedical Science, China Medical University, Taichung City, Taiwan
- Immunology Research and Development Center, China Medical University, Taichung City, Taiwan
- Department of Life Sciences, Tzu Chi University, Hualien, Taiwan
| | - Yun Wang
- National Health Research Institutes, Center for Neuropsychiatric Research, Zhunan, Taiwan
| | - Yun-Hsiang Chen
- Department of Life Science, Fu-Jen Catholic University, New Taipei City, Taiwan
- National Health Research Institutes, Center for Neuropsychiatric Research, Zhunan, Taiwan
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Fares MB, Alijevic O, Johne S, Overk C, Hashimoto M, Kondylis A, Adame A, Dulize R, Peric D, Nury C, Battey J, Guedj E, Sierro N, Mc Hugh D, Rockenstein E, Kim C, Rissman RA, Hoeng J, Peitsch MC, Masliah E, Mathis C. Nicotine-mediated effects in neuronal and mouse models of synucleinopathy. Front Neurosci 2023; 17:1239009. [PMID: 37719154 PMCID: PMC10501483 DOI: 10.3389/fnins.2023.1239009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 08/08/2023] [Indexed: 09/19/2023] Open
Abstract
Introduction Alpha-synuclein (α-Syn) aggregation, transmission, and contribution to neurotoxicity represent central mechanisms underlying Parkinson's disease. The plant alkaloid "nicotine" was reported to attenuate α-Syn aggregation in different models, but its precise mode of action remains unclear. Methods In this study, we investigated the effect of 2-week chronic nicotine treatment on α-Syn aggregation, neuroinflammation, neurodegeneration, and motor deficits in D-line α-Syn transgenic mice. We also established a novel humanized neuronal model of α-Syn aggregation and toxicity based on treatment of dopaminergic neurons derived from human induced pluripotent stem cells (iPSC) with α-Syn preformed fibrils (PFF) and applied this model to investigate the effects of nicotine and other compounds and their modes of action. Results and discussion Overall, our results showed that nicotine attenuated α-Syn-provoked neuropathology in both models. Moreover, when investigating the role of nicotinic acetylcholine receptor (nAChR) signaling in nicotine's neuroprotective effects in iPSC-derived dopaminergic neurons, we observed that while α4-specific antagonists reduced the nicotine-induced calcium response, α4 agonists (e.g., AZD1446 and anatabine) mediated similar neuroprotective responses against α-Syn PFF-provoked neurodegeneration. Our results show that nicotine attenuates α-Syn-provoked neuropathology in vivo and in a humanized neuronal model of synucleinopathy and that activation of α4β2 nicotinic receptors might mediate these neuroprotective effects.
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Affiliation(s)
| | - Omar Alijevic
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Stephanie Johne
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Cassia Overk
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Makoto Hashimoto
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | | | - Anthony Adame
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Remi Dulize
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Dariusz Peric
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Catherine Nury
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - James Battey
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Emmanuel Guedj
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Nicolas Sierro
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Damian Mc Hugh
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Edward Rockenstein
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Changyoun Kim
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Robert A. Rissman
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Julia Hoeng
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | | | - Eliezer Masliah
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Carole Mathis
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
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Shin YJ, Kim YJ, Lee JE, Kim YS, Lee JW, Kim H, Shin JY, Lee PH. Uric acid regulates α-synuclein transmission in Parkinsonian models. Front Aging Neurosci 2023; 15:1117491. [PMID: 37711993 PMCID: PMC10497982 DOI: 10.3389/fnagi.2023.1117491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 08/11/2023] [Indexed: 09/16/2023] Open
Abstract
Ample evidence demonstrates that α-synuclein (α-syn) has a critical role in the pathogenesis of Parkinson's disease (PD) with evidence indicating that its propagation from one area of the brain to others may be the primary mechanism for disease progression. Uric acid (UA), a natural antioxidant, has been proposed as a potential disease modifying candidate in PD. In the present study, we investigated whether UA treatment modulates cell-to-cell transmission of extracellular α-syn and protects dopaminergic neurons in the α-syn-enriched model. In a cellular model, UA treatment decreased internalized cytosolic α-syn levels and neuron-to-neuron transmission of α-syn in donor-acceptor cell models by modulating dynamin-mediated and clathrin-mediated endocytosis. Moreover, UA elevation in α-syn-inoculated mice inhibited propagation of extracellular α-syn which decreased expression of phosphorylated α-syn in the dopaminergic neurons of the substantia nigra leading to their increased survival. UA treatment did not lead to change in markers related with autophagolysosomal and microglial activity under the same experimental conditions. These findings suggest UA may control the pathological conditions of PD via additive mechanisms which modulate the propagation of α-syn.
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Affiliation(s)
- Yu Jin Shin
- Department of Neurology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University, Seoul, Republic of Korea
| | - Yeon Ju Kim
- Department of Neurology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University, Seoul, Republic of Korea
| | - Ji Eun Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University, Seoul, Republic of Korea
| | - Yi Seul Kim
- Department of Neurology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University, Seoul, Republic of Korea
| | - Jung Wook Lee
- Department of Medical Science, Catholic Kwandong University College of Medicine, Gangneung-si, Republic of Korea
| | - HyeonJeong Kim
- Department of Neurology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University, Seoul, Republic of Korea
| | - Jin Young Shin
- Department of Neurology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University, Seoul, Republic of Korea
| | - Phil Hyu Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University, Seoul, Republic of Korea
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42
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Liu M, Lan Y, Qin Y, Gao Y, Deng Y, Li N, Zhang C, Ma H. Interaction between astrocytes and neurons in simulated space radiation-induced CNS injury. Int J Radiat Biol 2023; 99:1830-1840. [PMID: 37436484 DOI: 10.1080/09553002.2023.2232004] [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: 12/18/2022] [Accepted: 05/26/2023] [Indexed: 07/13/2023]
Abstract
PURPOSE Astronauts exhibit neurological dysfunction during long-duration spaceflight, and the specific mechanisms may be closely related to the cumulative effects of these neurological injuries in the space radiation environment. Here, we investigated the interaction between astrocytes and neuronal cells exposed to simulated space radiation. MATERIALS AND METHODS we selected human astrocytes (U87 MG) and neuronal cells (SH-SY5Y) to establish an experimental model to explore the interaction between astrocytes and neuronal cells in the CNS under simulated space radiation environment and the role of exosomes in the interactions. RESULTS We found that γ-ray caused oxidative and inflammatory damage in human U87 MG and SH-SY5Y. The results of the conditioned medium transfer experiments showed that astrocytes exhibited a protective effect on neuronal cells, and neuronal cells influenced the activation of astrocytes in oxidative and inflammatory injury of CNS. We demonstrated that the number and size distribution of exosomes derived from U87 MG and SH-SY5Y cells were changed in response to H2O2, TNF-α or γ-ray treatment. Furthermore, we found that exosome derived from treated nerve cells influenced the cell viability and gene expression of untreated nerve cells, and the effect of exosomes was partly consistent with that of the conditioned medium. CONCLUSION Our findings demonstrated that astrocytes showed a protective effect on neuronal cells, and neuronal cells influenced the activation of astrocytes in oxidative and inflammatory damage of CNS induced by simulated space radiation. Exosomes played an essential role in the interaction between astrocytes and neuronal cells exposed to simulated space radiation.
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Affiliation(s)
- Mengjin Liu
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Yu Lan
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Yuhan Qin
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Yanan Gao
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Yulin Deng
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Nuomin Li
- School of Medical Technology, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, China
| | - Chen Zhang
- School of Medical Technology, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, China
| | - Hong Ma
- School of Life Science, Beijing Institute of Technology, Beijing, China
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Wang Y, Xia Y, Kou L, Yin S, Chi X, Li J, Sun Y, Wu J, Zhou Q, Zou W, Jin Z, Huang J, Xiong N, Wang T. Astrocyte-to-neuron reprogramming and crosstalk in the treatment of Parkinson's disease. Neurobiol Dis 2023:106224. [PMID: 37433411 DOI: 10.1016/j.nbd.2023.106224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/24/2023] [Accepted: 07/07/2023] [Indexed: 07/13/2023] Open
Abstract
Parkinson's disease (PD) is currently the fastest growing disabling neurological disorder worldwide, with motor and non-motor symptoms being its main clinical manifestations. The primary pathological features include a reduction in the number of dopaminergic neurons in the substantia nigra and decrease in dopamine levels in the nigrostriatal pathway. Existing treatments only alleviate clinical symptoms and do not stop disease progression; slowing down the loss of dopaminergic neurons and stimulating their regeneration are emerging therapies. Preclinical studies have demonstrated that transplantation of dopamine cells generated from human embryonic or induced pluripotent stem cells can restore the loss of dopamine. However, the application of cell transplantation is limited owing to ethical controversies and the restricted source of cells. Until recently, the reprogramming of astrocytes to replenish lost dopaminergic neurons has provided a promising alternative therapy for PD. In addition, repair of mitochondrial perturbations, clearance of damaged mitochondria in astrocytes, and control of astrocyte inflammation may be extensively neuroprotective and beneficial against chronic neuroinflammation in PD. Therefore, this review primarily focuses on the progress and remaining issues in astrocyte reprogramming using transcription factors (TFs) and miRNAs, as well as exploring possible new targets for treating PD by repairing astrocytic mitochondria and reducing astrocytic inflammation.
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Affiliation(s)
- Yiming Wang
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yun Xia
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Liang Kou
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Sijia Yin
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaosa Chi
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jingwen Li
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yadi Sun
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jiawei Wu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Qiulu Zhou
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wenkai Zou
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zongjie Jin
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jinsha Huang
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Nian Xiong
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Tao Wang
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Cheng A, Cai B, Fukunaga K, Sasaki T, Lakkaraju A. Feasibility and considerations of epsin2 as a candidate target for multiple system atrophy treatment. Expert Opin Ther Targets 2023; 27:1031-1034. [PMID: 37902421 DOI: 10.1080/14728222.2023.2277227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 10/26/2023] [Indexed: 10/31/2023]
Affiliation(s)
- An Cheng
- Department of Ophthalmology, School of Medicine, University of California, San Francisco, CA, USA
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan
| | - Bo Cai
- Department of chemistry, Purdue university, West Lafayett, IN, USA
| | - Kohji Fukunaga
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan
| | - Takuya Sasaki
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan
| | - Aparna Lakkaraju
- Department of Ophthalmology, School of Medicine, University of California, San Francisco, CA, USA
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45
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Qian K, Jiang X, Liu ZQ, Zhang J, Fu P, Su Y, Brazhe NA, Liu D, Zhu LQ. Revisiting the critical roles of reactive astrocytes in neurodegeneration. Mol Psychiatry 2023; 28:2697-2706. [PMID: 37037874 DOI: 10.1038/s41380-023-02061-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 04/12/2023]
Abstract
Astrocytes, an integral component of the central nervous system (CNS), contribute to the maintenance of physiological homeostasis through their roles in synaptic function, K+ buffering, blood-brain barrier (BBB) maintenance, and neuronal metabolism. Reactive astrocytes refer to astrocytes undergoing morphological, molecular and functional remodelling in response to pathological stimuli. The activation and differentiation of astrocytes are implicated in the pathogenesis of multiple neurodegenerative diseases. However, there are still controversies regarding their subset identification, function and nomenclature in neurodegeneration. In this review, we revisit the multidimensional roles of reactive astrocytes in Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), multiple sclerosis (MS) and amyotrophic lateral sclerosis (ALS). Furthermore, we propose a precise linkage between astrocyte subsets and their functions based on single-cell sequencing analyses.
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Affiliation(s)
- Kang Qian
- Department of Pathophysiology, Key Lab of Neurological Disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Neurosurgery, Union Hospital, Huazhong University of Science and Technology, Jiefang Avenue No. 1277, 430022, Wuhan, China
| | - Xiaobing Jiang
- Department of Neurosurgery, Union Hospital, Huazhong University of Science and Technology, Jiefang Avenue No. 1277, 430022, Wuhan, China
| | - Zhi-Qiang Liu
- Department of Pathophysiology, Key Lab of Neurological Disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Juan Zhang
- Department of Pathophysiology, Key Lab of Neurological Disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Fu
- Department of Neurosurgery, Union Hospital, Huazhong University of Science and Technology, Jiefang Avenue No. 1277, 430022, Wuhan, China
| | - Ying Su
- Department of Neurology, Union Hospital, Huazhong University of Science and Technology, Jiefang Avenue No. 1277, 430022, Wuhan, China
| | - Nadezda A Brazhe
- Biophysics Department, Biological Faculty, Moscow State University, Moscow, Russia
| | - Dan Liu
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Ling-Qiang Zhu
- Department of Pathophysiology, Key Lab of Neurological Disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Pantazopoulou M, Lamprokostopoulou A, Karampela DS, Alexaki A, Delis A, Coens A, Samiotaki M, Kriebardis AG, Melki R, Pagakis SN, Stefanis L, Vekrellis K. Differential intracellular trafficking of extracellular vesicles in microglia and astrocytes. Cell Mol Life Sci 2023; 80:193. [PMID: 37391572 DOI: 10.1007/s00018-023-04841-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 06/07/2023] [Accepted: 06/15/2023] [Indexed: 07/02/2023]
Abstract
Extracellular vesicles (EVs) have emerged as key players in cell-to-cell communication in both physiological and pathological processes in the Central Nervous System. Thus far, the intracellular pathways involved in uptake and trafficking of EVs within different cell types of the brain are poorly understood. In our study, the endocytic processes and subcellular sorting of EVs were investigated in primary glial cells, particularly linked with the EV-associated α-synuclein (α-syn) transmission. Mouse microglia and astrocytic primary cultures were incubated with DiI-stained mouse brain-derived EVs. The internalization and trafficking pathways were analyzed in cells treated with pharmacological reagents that block the major endocytic pathways. Brain-derived EVs were internalized by both glial cell types; however, uptake was more efficient in microglia than in astrocytes. Colocalization of EVs with early and late endocytic markers (Rab5, Lamp1) indicated that EVs are sorted to endo-lysosomes for subsequent processing. Blocking actin-dependent phagocytosis and/or macropinocytosis with Cytochalasin D or EIPA inhibited EV entry into glial cells, whereas treatment with inhibitors that strip cholesterol off the plasma membrane, induced uptake, however differentially altered endosomal sorting. EV-associated fibrillar α-Syn was efficiently internalized and detected in Rab5- and Lamp1-positive compartments within microglia. Our study strongly suggests that EVs enter glial cells through phagocytosis and/or macropinocytosis and are sorted to endo-lysosomes for subsequent processing. Further, brain-derived EVs serve as scavengers and mediate cell-to-glia transfer of pathological α-Syn which is also targeted to the endolysosomal pathway, suggesting a beneficial role in microglia-mediated clearance of toxic protein aggregates, present in numerous neurodegenerative diseases.
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Affiliation(s)
- Marina Pantazopoulou
- Biomedical Research Foundation Academy of Athens-BRFAA, Clinical-Experimental Surgery & Translational Research, 4, Soranou Tou Efesiou Street, 11527, Athens, Greece.
| | | | | | - Anastasia Alexaki
- Biomedical Research Foundation Academy of Athens-BRFAA, Centre of Basic Research, Athens, Greece
| | - Anastasios Delis
- Biomedical Research Foundation Academy of Athens-BRFAA, Centre of Basic Research, Athens, Greece
| | - Audrey Coens
- Institut Francois Jacob (MIRCen), CEA and Laboratory of Neurodegenerative Diseases, CNRS, Fontenay-Aux-Roses Cedex, France
| | - Martina Samiotaki
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Fleming 34, 16672, Vari, Greece
| | - Anastasios G Kriebardis
- Laboratory of Reliability and Quality Control in Laboratory Hematology (HemQcR), Department of Biomedical Sciences, School of Health & Welfare Sciences, University of West Attica (UniWA), Egaleo, Greece
| | - Ronald Melki
- Institut Francois Jacob (MIRCen), CEA and Laboratory of Neurodegenerative Diseases, CNRS, Fontenay-Aux-Roses Cedex, France
| | - Stamatis N Pagakis
- Biomedical Research Foundation Academy of Athens-BRFAA, Centre of Basic Research, Athens, Greece
| | - Leonidas Stefanis
- Biomedical Research Foundation Academy of Athens-BRFAA, Clinical-Experimental Surgery & Translational Research, 4, Soranou Tou Efesiou Street, 11527, Athens, Greece
| | - Kostas Vekrellis
- Biomedical Research Foundation Academy of Athens-BRFAA, Centre of Basic Research, Athens, Greece
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Arnold FJ, Nguyen AD, Bedlack RS, Bennett CL, La Spada AR. Intercellular transmission of pathogenic proteins in ALS: Exploring the pathogenic wave. Neurobiol Dis 2023:106218. [PMID: 37394036 DOI: 10.1016/j.nbd.2023.106218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 06/16/2023] [Accepted: 06/28/2023] [Indexed: 07/04/2023] Open
Abstract
In patients with amyotrophic lateral sclerosis (ALS), disease symptoms and pathology typically spread in a predictable spatiotemporal pattern beginning at a focal site of onset and progressing along defined neuroanatomical tracts. Like other neurodegenerative diseases, ALS is characterized by the presence of protein aggregates in postmortem patient tissue. Cytoplasmic, ubiquitin-positive aggregates of TDP-43 are observed in approximately 97% of sporadic and familial ALS patients, while SOD1 inclusions are likely specific to cases of SOD1-ALS. Additionally, the most common subtype of familial ALS, caused by a hexanucleotide repeat expansion in the first intron of the C9orf72 gene (C9-ALS), is further characterized by the presence of aggregated dipeptide repeat proteins (DPRs). As we will describe, cell-to-cell propagation of these pathological proteins tightly correlates with the contiguous spread of disease. While TDP-43 and SOD1 are capable of seeding protein misfolding and aggregation in a prion-like manner, C9orf72 DPRs appear to induce (and transmit) a 'disease state' more generally. Multiple mechanisms of intercellular transport have been described for all of these proteins, including anterograde and retrograde axonal transport, extracellular vesicle secretion, and macropinocytosis. In addition to neuron-to-neuron transmission, transmission of pathological proteins occurs between neurons and glia. Given that the spread of ALS disease pathology corresponds with the spread of symptoms in patients, the various mechanisms by which ALS-associated protein aggregates propagate through the central nervous system should be closely examined.
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Affiliation(s)
- F J Arnold
- Department of Pathology and Laboratory Medicine, University of California, Irvine, Irvine, CA, USA; Department of Neurology, Duke University School of Medicine, Durham, NC 27710, USA
| | - A D Nguyen
- Department of Neurology, Duke University School of Medicine, Durham, NC 27710, USA
| | - R S Bedlack
- Department of Neurology, Duke University School of Medicine, Durham, NC 27710, USA
| | - C L Bennett
- Department of Pathology and Laboratory Medicine, University of California, Irvine, Irvine, CA, USA; Department of Neurology, Duke University School of Medicine, Durham, NC 27710, USA.
| | - A R La Spada
- Department of Pathology and Laboratory Medicine, University of California, Irvine, Irvine, CA, USA; Department of Neurology, Duke University School of Medicine, Durham, NC 27710, USA; Departments of Neurobiology and Behavior, University of California, Irvine, Irvine, CA 92697, USA; Department of Neurology, University of California, Irvine, Irvine, CA, USA; Department of Biological Chemistry, University of California, Irvine, Irvine, CA, USA; UCI Center for Neurotherapeutics, University of California, Irvine, Irvine, CA 92697, USA.
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Lee J, Sung KW, Bae EJ, Yoon D, Kim D, Lee JS, Park DH, Park DY, Mun SR, Kwon SC, Kim HY, Min JO, Lee SJ, Suh YH, Kwon YT. Targeted degradation of ⍺-synuclein aggregates in Parkinson's disease using the AUTOTAC technology. Mol Neurodegener 2023; 18:41. [PMID: 37355598 PMCID: PMC10290391 DOI: 10.1186/s13024-023-00630-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 05/31/2023] [Indexed: 06/26/2023] Open
Abstract
BACKGROUND There are currently no disease-modifying therapeutics for Parkinson's disease (PD). Although extensive efforts were undertaken to develop therapeutic approaches to delay the symptoms of PD, untreated α-synuclein (α-syn) aggregates cause cellular toxicity and stimulate further disease progression. PROTAC (Proteolysis-Targeting Chimera) has drawn attention as a therapeutic modality to target α-syn. However, no PROTACs have yet shown to selectively degrade α-syn aggregates mainly owing to the limited capacity of the proteasome to degrade aggregates, necessitating the development of novel approaches to fundamentally eliminate α-syn aggregates. METHODS We employed AUTOTAC (Autophagy-Targeting Chimera), a macroautophagy-based targeted protein degradation (TPD) platform developed in our earlier studies. A series of AUTOTAC chemicals was synthesized as chimeras that bind both α-syn aggregates and p62/SQSTM1/Sequestosome-1, an autophagic receptor. The efficacy of Autotacs was evaluated to target α-syn aggregates to phagophores and subsequently lysosomes for hydrolysis via p62-dependent macroautophagy. The target engagement was monitored by oligomerization and localization of p62 and autophagic markers. The therapeutic efficacy to rescue PD symptoms was characterized in cultured cells and mice. The PK/PD (pharmacokinetics/pharmacodynamics) profiles were investigated to develop an oral drug for PD. RESULTS ATC161 induced selective degradation of α-syn aggregates at DC50 of ~ 100 nM. No apparent degradation was observed with monomeric α-syn. ATC161 mediated the targeting of α-syn aggregates to p62 by binding the ZZ domain and accelerating p62 self-polymerization. These p62-cargo complexes were delivered to autophagic membranes for lysosomal degradation. In PD cellular models, ATC161 exhibited therapeutic efficacy to reduce cell-to-cell transmission of α-syn and to rescue cells from the damages in DNA and mitochondria. In PD mice established by injecting α-syn preformed fibrils (PFFs) into brain striata via stereotaxic surgery, oral administration of ATC161 at 10 mg/kg induced the degradation of α-syn aggregates and reduced their propagation. ATC161 also mitigated the associated glial inflammatory response and improved muscle strength and locomotive activity. CONCLUSION AUTOTAC provides a platform to develop drugs for PD. ATC161, an oral drug with excellent PK/PD profiles, induces selective degradation of α-syn aggregates in vitro and in vivo. We suggest that ATC161 is a disease-modifying drug that degrades the pathogenic cause of PD.
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Affiliation(s)
- Jihoon Lee
- Cellular Degradation Biology Center, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- AUTOTAC Bio Inc., Changkyunggung-Ro 254, Jongno-Gu, Seoul, 03077, Republic of Korea
| | - Ki Woon Sung
- Cellular Degradation Biology Center, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- AUTOTAC Bio Inc., Changkyunggung-Ro 254, Jongno-Gu, Seoul, 03077, Republic of Korea
| | - Eun-Jin Bae
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- Neuroscience Research Institute, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
| | - Dabin Yoon
- AUTOTAC Bio Inc., Changkyunggung-Ro 254, Jongno-Gu, Seoul, 03077, Republic of Korea
- Department of Physical Education, Sejong University, Seoul, 05006, Republic of Korea
| | - Dasarang Kim
- AUTOTAC Bio Inc., Changkyunggung-Ro 254, Jongno-Gu, Seoul, 03077, Republic of Korea
| | - Jin Saem Lee
- AUTOTAC Bio Inc., Changkyunggung-Ro 254, Jongno-Gu, Seoul, 03077, Republic of Korea
| | - Da-Ha Park
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- Neuroscience Research Institute, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
| | - Daniel Youngjae Park
- Cellular Degradation Biology Center, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
| | - Su Ran Mun
- Cellular Degradation Biology Center, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
| | - Soon Chul Kwon
- Cellular Degradation Biology Center, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
| | - Hye Yeon Kim
- Cellular Degradation Biology Center, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
| | - Joo-Ok Min
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- Neuroscience Research Institute, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
| | - Seung-Jae Lee
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- Neuroscience Research Institute, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
- Neuramedy Co. Ltd, Seoul, 04796, Republic of Korea
- Convergence Research Center for Dementia, Seoul National University Medical Research Center, Seoul, 03080, Republic of Korea
| | - Young Ho Suh
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea.
- Neuroscience Research Institute, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea.
| | - Yong Tae Kwon
- Cellular Degradation Biology Center, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea.
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea.
- AUTOTAC Bio Inc., Changkyunggung-Ro 254, Jongno-Gu, Seoul, 03077, Republic of Korea.
- Convergence Research Center for Dementia, Seoul National University Medical Research Center, Seoul, 03080, Republic of Korea.
- Ischemic/Hypoxic Disease Institute, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea.
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Lamontagne-Proulx J, Coulombe K, Morissette M, Rieux M, Calon F, Di Paolo T, Soulet D. Sex and Age Differences in a Progressive Synucleinopathy Mouse Model. Biomolecules 2023; 13:977. [PMID: 37371557 DOI: 10.3390/biom13060977] [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: 04/12/2023] [Revised: 05/22/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
The mutation and overexpression of the alpha-synuclein protein (αSyn), described as synucleinopathy, is associated with Parkinson's disease (PD)-like pathologies. A higher prevalence of PD is documented for men versus women, suggesting female hormones' implication in slowing PD progression. The nigrostriatal dopamine (DA) neurons in rodent males are more vulnerable to toxins than those in females. The effect of biological sex on synucleinopathy remains poorly described and was investigated using mice knocked out for murine αSyn (SNCA-/-) and also overexpressing human αSyn (SNCA-OVX) compared to wildtype (WT) mice. All the mice showed decreased locomotor activity with age, and more abruptly in the male than in the female SNCA-OVX mice; anxiety-like behavior increased with age. The SNCA-OVX mice had an age-dependent accumulation of αSyn. Older age was associated with the loss of nigral DA neurons and decreased striatal DA contents. The astrogliosis, microgliosis, and cytokine concentrations increased with aging. More abrupt nigrostriatal DA decreases and increased microgliosis were observed in the male SNCA-OVX mice. Human αSyn overexpression and murine αSyn knockout resulted in behavioral dysfunctions, while only human αSyn overexpression was toxic to DA neurons. At 18 months, neuroprotection was lost in the female SNCA-OVX mice, with a likely loss of estrus cycles. In conclusion, sex-dependent αSyn toxicity was observed, affecting the male mice more significantly.
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Affiliation(s)
- Jérôme Lamontagne-Proulx
- Centre de Recherche du CHU de Québec, Axe Neurosciences, T2-32, 2705, Boulevard Laurier, Québec, QC G1V 4G2, Canada
- Laboratoire International Associé OptiNutriBrain (NutriNeuro France-INAF Canada), Québec, QC G1V 0A6, Canada
| | - Katherine Coulombe
- Centre de Recherche du CHU de Québec, Axe Neurosciences, T2-32, 2705, Boulevard Laurier, Québec, QC G1V 4G2, Canada
| | - Marc Morissette
- Centre de Recherche du CHU de Québec, Axe Neurosciences, T2-32, 2705, Boulevard Laurier, Québec, QC G1V 4G2, Canada
| | - Marie Rieux
- Centre de Recherche du CHU de Québec, Axe Neurosciences, T2-32, 2705, Boulevard Laurier, Québec, QC G1V 4G2, Canada
| | - Frédéric Calon
- Centre de Recherche du CHU de Québec, Axe Neurosciences, T2-32, 2705, Boulevard Laurier, Québec, QC G1V 4G2, Canada
- Laboratoire International Associé OptiNutriBrain (NutriNeuro France-INAF Canada), Québec, QC G1V 0A6, Canada
- Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, 2440, Boulevard Hochelaga, Bureau 1705, Québec, QC G1V 0A6, Canada
| | - Thérèse Di Paolo
- Centre de Recherche du CHU de Québec, Axe Neurosciences, T2-32, 2705, Boulevard Laurier, Québec, QC G1V 4G2, Canada
- Laboratoire International Associé OptiNutriBrain (NutriNeuro France-INAF Canada), Québec, QC G1V 0A6, Canada
| | - Denis Soulet
- Centre de Recherche du CHU de Québec, Axe Neurosciences, T2-32, 2705, Boulevard Laurier, Québec, QC G1V 4G2, Canada
- Laboratoire International Associé OptiNutriBrain (NutriNeuro France-INAF Canada), Québec, QC G1V 0A6, Canada
- Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, 2440, Boulevard Hochelaga, Bureau 1705, Québec, QC G1V 0A6, Canada
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Purushotham SS, Buskila Y. Astrocytic modulation of neuronal signalling. FRONTIERS IN NETWORK PHYSIOLOGY 2023; 3:1205544. [PMID: 37332623 PMCID: PMC10269688 DOI: 10.3389/fnetp.2023.1205544] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 05/18/2023] [Indexed: 06/20/2023]
Abstract
Neuronal signalling is a key element in neuronal communication and is essential for the proper functioning of the CNS. Astrocytes, the most prominent glia in the brain play a key role in modulating neuronal signalling at the molecular, synaptic, cellular, and network levels. Over the past few decades, our knowledge about astrocytes and their functioning has evolved from considering them as merely a brain glue that provides structural support to neurons, to key communication elements. Astrocytes can regulate the activity of neurons by controlling the concentrations of ions and neurotransmitters in the extracellular milieu, as well as releasing chemicals and gliotransmitters that modulate neuronal activity. The aim of this review is to summarise the main processes through which astrocytes are modulating brain function. We will systematically distinguish between direct and indirect pathways in which astrocytes affect neuronal signalling at all levels. Lastly, we will summarize pathological conditions that arise once these signalling pathways are impaired focusing on neurodegeneration.
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Affiliation(s)
| | - Yossi Buskila
- School of Medicine, Western Sydney University, Campbelltown, NSW, Australia
- The MARCS Institute, Western Sydney University, Campbelltown, NSW, Australia
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