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Lloyd GM, Dhillon JKS, Gorion KMM, Riffe C, Fromholt SE, Xia Y, Giasson BI, Borchelt DR. Correction: Collusion of α-Synuclein and Aβ aggravating co-morbidities in a novel prion-type mouse model. Mol Neurodegener 2024; 19:17. [PMID: 38365847 PMCID: PMC10873951 DOI: 10.1186/s13024-024-00710-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024] Open
Affiliation(s)
- Grace M Lloyd
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, 32610, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Jess-Karan S Dhillon
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, 32610, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Kimberly-Marie M Gorion
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, 32610, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Cara Riffe
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, 32610, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Susan E Fromholt
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, 32610, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Yuxing Xia
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, 32610, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Benoit I Giasson
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, 32610, USA.
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, 32610, USA.
- McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, FL, 32610, USA.
| | - David R Borchelt
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, 32610, USA.
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, 32610, USA.
- McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, FL, 32610, USA.
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Lloyd GM, Dhillon JKS, Gorion KMM, Riffe C, Fromholt SE, Xia Y, Giasson BI, Borchelt DR. Collusion of α-Synuclein and Aβ aggravating co-morbidities in a novel prion-type mouse model. Mol Neurodegener 2021; 16:63. [PMID: 34503546 PMCID: PMC8427941 DOI: 10.1186/s13024-021-00486-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 08/19/2021] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND The misfolding of host-encoded proteins into pathological prion conformations is a defining characteristic of many neurodegenerative disorders, including Alzheimer's disease, Parkinson's disease, and Lewy body dementia. A current area of intense study is the way in which the pathological deposition of these proteins might influence each other, as various combinations of co-pathology between prion-capable proteins are associated with exacerbation of disease. A spectrum of pathological, genetic and biochemical evidence provides credence to the notion that amyloid β (Aβ) accumulation can induce and promote α-synuclein pathology, driving neurodegeneration. METHODS To assess the interplay between α-synuclein and Aβ on protein aggregation kinetics, we crossed mice expressing human α-synuclein (M20) with APPswe/PS1dE9 transgenic mice (L85) to generate M20/L85 mice. We then injected α-synuclein preformed fibrils (PFFs) unilaterally into the hippocampus of 6-month-old mice, harvesting 2 or 4 months later. RESULTS Immunohistochemical analysis of M20/L85 mice revealed that pre-existing Aβ plaques exacerbate the spread and deposition of induced α-synuclein pathology. This process was associated with increased neuroinflammation. Unexpectedly, the injection of α-synuclein PFFs in L85 mice enhanced the deposition of Aβ; whereas the level of Aβ deposition in M20/L85 bigenic mice, injected with α-synuclein PFFs, did not differ from that of mice injected with PBS. CONCLUSIONS These studies reveal novel and unexpected interplays between α-synuclein pathology, Aβ and neuroinflammation in mice that recapitulate the pathology of Alzheimer's disease and Lewy body dementia.
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Affiliation(s)
- Grace M Lloyd
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA
| | - Jess-Karan S Dhillon
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA
| | - Kimberly-Marie M Gorion
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA
| | - Cara Riffe
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA
| | - Susan E Fromholt
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA
| | - Yuxing Xia
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA
| | - Benoit I Giasson
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA.
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA.
- McKnight Brain Institute, College of Medicine, University of Florida, BMS J499, J483/CTRND, 1275 Center Drive, Gainesville, FL, 32610, USA.
| | - David R Borchelt
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA.
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA.
- McKnight Brain Institute, College of Medicine, University of Florida, BMS J499, J483/CTRND, 1275 Center Drive, Gainesville, FL, 32610, USA.
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Dhillon JKS, Trejo-Lopez JA, Riffe C, McFarland NR, Hiser WM, Giasson BI, Yachnis AT. Dissecting α-synuclein inclusion pathology diversity in multiple system atrophy: implications for the prion-like transmission hypothesis. J Transl Med 2019; 99:982-992. [PMID: 30737468 PMCID: PMC7209695 DOI: 10.1038/s41374-019-0198-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/28/2018] [Accepted: 12/05/2018] [Indexed: 02/06/2023] Open
Abstract
Synucleinopathies are a group of neurodegenerative diseases characterized by the accumulation of insoluble, aggregated α-synuclein (αS) pathological inclusions. Multiple system atrophy (MSA) presents with extensive oligodendroglial αS pathology and additional more limited neuronal inclusions while most of the other synucleinopathies, such as Parkinson's disease and dementia with Lewy bodies (DLB), develop αS pathology primarily in neuronal cell populations. αS biochemical alterations specific to MSA have been described but thorough examination of these unique and disease-specific protein deposits is further warranted especially given recent findings implicating the prion-like nature of synucleinopathies perhaps with distinct strain-like properties. Taking advantage of an extensive panel of antibodies that target a wide range of epitopes within αS, we investigated the distinct properties of the various types of αS inclusion present in MSA brains with comparison to DLB. Brain biochemical fractionation followed by immunoblotting revealed that the immunoreactive profiles were significantly more consistent for DLB than for MSA. Furthermore, epitope-specific immunohistochemistry varied greatly between different types of MSA αS inclusions and even within different brain regions of individual MSA brains. These studies highlight the importance of using a battery of antibodies for adequate appreciation of the various pathology in this distinct synucleinopathy. In addition, it can be posited that if the spread of pathology in MSA undergoes prion-like mechanisms, "strains" of αS aggregated conformers must be inherently unstable and readily mutable, perhaps resulting in a more stochastic progression process.
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Affiliation(s)
- Jess-Karan S. Dhillon
- Department of Neuroscience, University of Florida, Gainesville, FL 32610, USA.,Center for Translational Research in Neurodegenerative Disease, University of Florida, Gainesville, FL 32610, USA
| | - Jorge A. Trejo-Lopez
- Center for Translational Research in Neurodegenerative Disease, University of Florida, Gainesville, FL 32610, USA.,Department of Pathology, University of Florida, Gainesville, FL 32610, USA
| | - Cara Riffe
- Department of Neuroscience, University of Florida, Gainesville, FL 32610, USA.,Center for Translational Research in Neurodegenerative Disease, University of Florida, Gainesville, FL 32610, USA
| | - Nikolaus R. McFarland
- Center for Translational Research in Neurodegenerative Disease, University of Florida, Gainesville, FL 32610, USA.,Department of Neurology, University of Florida, Gainesville, FL 32610, USA.,McKnight Brain Institute, University of Florida, Gainesville, FL 32610, USA
| | - Wesley M. Hiser
- Department of Pathology, University of Florida, Gainesville, FL 32610, USA
| | - Benoit I. Giasson
- Department of Neuroscience, University of Florida, Gainesville, FL 32610, USA.,Center for Translational Research in Neurodegenerative Disease, University of Florida, Gainesville, FL 32610, USA.,McKnight Brain Institute, University of Florida, Gainesville, FL 32610, USA.,Corresponding author: Benoit I. Giasson () or Anthony Yachnis ()
| | - Anthony T. Yachnis
- Department of Pathology, University of Florida, Gainesville, FL 32610, USA.,Corresponding author: Benoit I. Giasson () or Anthony Yachnis ()
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Dhillon JKS, Trejo-Lopez JA, Riffe C, Levites Y, Sacino AN, Borchelt DR, Yachnis AY, Giasson BI. Comparative analyses of the in vivo induction and transmission of α-synuclein pathology in transgenic mice by MSA brain lysate and recombinant α-synuclein fibrils. Acta Neuropathol Commun 2019; 7:80. [PMID: 31109378 PMCID: PMC6526622 DOI: 10.1186/s40478-019-0733-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 05/09/2019] [Indexed: 12/21/2022] Open
Abstract
α-synuclein (αS) is the major component of several types of brain pathological inclusions that define neurodegenerative diseases termed synucleinopathies. Central nervous system (CNS) inoculation studies using either in vitro polymerized αS fibrils or in vivo derived lysates containing αS aggregates to induce the progressive spread of αS inclusion pathology in animal disease models have supported the notion that αS mediated progressive neurodegeneration can occur by a prion-like mechanism. We have previously shown that neonatal brain inoculation with preformed αS fibrils in hemizygous M20+/− transgenic mice expressing wild type human αS and to a lesser extent in non-transgenic mice can result in a concentration-dependent progressive induction of CNS αS pathology. Recent studies using brain lysates from patients with multiple system atrophy (MSA), characterized by αS inclusion pathology in oligodendrocytes, indicate that these may be uniquely potent at inducing αS pathology with prion-like strain specificity. We demonstrate here that brain lysates from MSA patients, but not control individuals, can induce αS pathology following neonatal brain inoculation in transgenic mice expressing A53T human αS (M83 line), but not in transgenic expressing wild type human αS (M20 line) or non-transgenic mice within the timeframe of the study design. Further, we show that neuroanatomical and immunohistochemical properties of the pathology induced by MSA brain lysates is very similar to what is produced by the neonatal brain injection of preformed human αS fibrils in hemizygous M83+/− transgenic mice. Collectively, these findings reinforce the idea that the intrinsic traits of the M83 mouse model dominates over any putative prion-like strain properties of MSA αS seeds that can induce pathology.
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Grau KR, Roth AN, Zhu S, Hernandez A, Colliou N, DiVita BB, Philip DT, Riffe C, Giasson B, Wallet SM, Mohamadzadeh M, Karst SM. The major targets of acute norovirus infection are immune cells in the gut-associated lymphoid tissue. Nat Microbiol 2017; 2:1586-1591. [PMID: 29109476 PMCID: PMC5705318 DOI: 10.1038/s41564-017-0057-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 10/09/2017] [Indexed: 11/16/2022]
Abstract
Noroviruses are the leading cause of food-borne gastroenteritis outbreaks and childhood diarrhoea globally, estimated to be responsible for 200,000 deaths in children each year 1-4 . Thus, reducing norovirus-associated disease is a critical priority. Development of vaccines and therapeutics has been hindered by the limited understanding of basic norovirus pathogenesis and cell tropism. While macrophages, dendritic cells, B cells and stem-cell-derived enteroids can all support infection of certain noroviruses in vitro 5-7 , efforts to define in vivo norovirus cell tropism have generated conflicting results. Some studies detected infected intestinal immune cells 8-12 , other studies detected epithelial cells 13 , and still others detected immune and epithelial cells 14-16 . Major limitations of these studies are that they were performed on tissue sections from immunocompromised or germ-free hosts, chronically infected hosts where the timing of infection was unknown, or following non-biologically relevant inoculation routes. Here, we report that the dominant cellular targets of a murine norovirus inoculated orally into immunocompetent mice are macrophages, dendritic cells, B cells and T cells in the gut-associated lymphoid tissue. Importantly, we also demonstrate that a norovirus can infect T cells, a previously unrecognized target, in vitro. These findings represent the most extensive analyses to date of in vivo norovirus cell tropism in orally inoculated, immunocompetent hosts at the peak of acute infection and thus they significantly advance our basic understanding of norovirus pathogenesis.
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Affiliation(s)
- Katrina R Grau
- Department of Molecular Genetics & Microbiology, Emerging Pathogens Institute, Center for Inflammation and Mucosal Immunology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Alexa N Roth
- Department of Molecular Genetics & Microbiology, Emerging Pathogens Institute, Center for Inflammation and Mucosal Immunology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Shu Zhu
- Department of Molecular Genetics & Microbiology, Emerging Pathogens Institute, Center for Inflammation and Mucosal Immunology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Abel Hernandez
- Department of Molecular Genetics & Microbiology, Emerging Pathogens Institute, Center for Inflammation and Mucosal Immunology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Natacha Colliou
- Department of Infectious Diseases & Immunology, Center for Inflammation & Mucosal Immunology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Bayli B DiVita
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, USA
| | - Drake T Philip
- Department of Molecular Genetics & Microbiology, Emerging Pathogens Institute, Center for Inflammation and Mucosal Immunology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Cara Riffe
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Benoit Giasson
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Shannon M Wallet
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, USA
| | - Mansour Mohamadzadeh
- Department of Infectious Diseases & Immunology, Center for Inflammation & Mucosal Immunology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Stephanie M Karst
- Department of Molecular Genetics & Microbiology, Emerging Pathogens Institute, Center for Inflammation and Mucosal Immunology, College of Medicine, University of Florida, Gainesville, FL, USA.
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Dhillon JKS, Riffe C, Moore BD, Ran Y, Chakrabarty P, Golde TE, Giasson BI. A novel panel of α-synuclein antibodies reveal distinctive staining profiles in synucleinopathies. PLoS One 2017; 12:e0184731. [PMID: 28910367 PMCID: PMC5599040 DOI: 10.1371/journal.pone.0184731] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 08/24/2017] [Indexed: 12/25/2022] Open
Abstract
Synucleinopathies are a spectrum of neurodegenerative diseases characterized by the intracellular deposition of the protein α-synuclein leading to multiple outcomes, including dementia and Parkinsonism. Recent findings support the notion that across the spectrum of synucleinopathies there exist diverse but specific biochemical modifications and/or structural conformations of α-synuclein, which would give rise to protein strain specific prion-like intercellular transmission, a proposed model that could explain synucleinopathies disease progression. Herein, we characterized a panel of antibodies with epitopes within both the C- and N- termini of α-synuclein. A comprehensive analysis of human pathological tissue and mouse models of synucleinopathy with these antibodies support the notion that α-synuclein exists in distinct modified forms and/or structural variants. Furthermore, these well-characterized and specific tools allow the investigation of biochemical changes associated with α-synuclein inclusion formation. We have identified several antibodies of interest with diverse staining and epitope properties that will prove useful in future investigations of strain specific disease progression and the development of targeted immunotherapeutic approaches to synucleinopathies.
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Affiliation(s)
- Jess-Karan S. Dhillon
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease, and McKnight Brain Institute, College of Medicine University of Florida, Gainesville, Florida, United States of America
| | - Cara Riffe
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease, and McKnight Brain Institute, College of Medicine University of Florida, Gainesville, Florida, United States of America
| | - Brenda D. Moore
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease, and McKnight Brain Institute, College of Medicine University of Florida, Gainesville, Florida, United States of America
| | - Yong Ran
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease, and McKnight Brain Institute, College of Medicine University of Florida, Gainesville, Florida, United States of America
| | - Paramita Chakrabarty
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease, and McKnight Brain Institute, College of Medicine University of Florida, Gainesville, Florida, United States of America
| | - Todd E. Golde
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease, and McKnight Brain Institute, College of Medicine University of Florida, Gainesville, Florida, United States of America
| | - Benoit I. Giasson
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease, and McKnight Brain Institute, College of Medicine University of Florida, Gainesville, Florida, United States of America
- * E-mail:
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Strang KH, Goodwin MS, Riffe C, Moore BD, Chakrabarty P, Levites Y, Golde TE, Giasson BI. Generation and characterization of new monoclonal antibodies targeting the PHF1 and AT8 epitopes on human tau. Acta Neuropathol Commun 2017; 5:58. [PMID: 28760159 PMCID: PMC5537986 DOI: 10.1186/s40478-017-0458-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 07/15/2017] [Indexed: 02/06/2023] Open
Abstract
Tauopathies are a group of neurodegenerative disorders, including Alzheimer’s disease, defined by the presence of brain pathological inclusions comprised of abnormally aggregated and highly phosphorylated tau protein. The abundance of brain tau aggregates correlates with disease severity and select phospho-tau epitopes increase at early stages of disease. We generated and characterized a series of novel monoclonal antibodies directed to tau phosphorylated at several of these phospho-epitopes, including Ser396/Ser404, Ser404 and Thr205. We also generated phosphorylation independent antibodies against amino acid residues 193–211. We show that most of these antibodies are highly specific for tau and strongly recognize pathological inclusions in human brains and in a transgenic mouse model of tauopathy. They also reveal epitope-specific differences in the biochemical properties of Alzheimer’s disease sarkosyl-insoluble tau. These new reagents will be useful for investigating the progression of tau pathology and further as tools to target the cellular transmission of tau pathology.
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