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Orrú CD, Groveman BR, Hughson AG, Barrio T, Isiofia K, Race B, Ferreira NC, Gambetti P, Schneider DA, Masujin K, Miyazawa K, Ghetti B, Zanusso G, Caughey B. Sensitive detection of pathological seeds of α-synuclein, tau and prion protein on solid surfaces. PLoS Pathog 2024; 20:e1012175. [PMID: 38640117 PMCID: PMC11062561 DOI: 10.1371/journal.ppat.1012175] [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: 02/20/2024] [Revised: 05/01/2024] [Accepted: 04/06/2024] [Indexed: 04/21/2024] Open
Abstract
Prions or prion-like aggregates such as those composed of PrP, α-synuclein, and tau are key features of proteinopathies such as prion, Parkinson's and Alzheimer's diseases, respectively. Their presence on solid surfaces may be biohazardous under some circumstances. PrP prions bound to solids are detectable by ultrasensitive real-time quaking-induced conversion (RT-QuIC) assays if the solids can be immersed in assay wells or the prions transferred to pads. Here we show that prion-like seeds can remain detectable on steel wires for at least a year, or even after enzymatic cleaning and sterilization. We also show that contamination of larger objects with pathological seeds of α-synuclein, tau, and PrP can be detected by simply assaying a sampling medium that has been transiently applied to the surface. Human α-synuclein seeds in dementia with Lewy bodies brain tissue were detected by α-synuclein RT-QuIC after drying of tissue dilutions with concentrations as low as 10-6 onto stainless steel. Tau RT-QuIC detected tau seeding activity on steel exposed to Alzheimer's disease brain tissue diluted as much as a billion fold. Prion RT-QuIC assays detected seeding activity on plates exposed to brain dilutions as extreme as 10-5-10-8 from prion-affected humans, sheep, cattle and cervids. Sampling medium collected from surgical instruments used in necropsies of sporadic Creutzfeldt-Jakob disease-infected transgenic mice was positive down to 10-6 dilution. Sensitivity for prion detection was not sacrificed by omitting the recombinant PrP substrate from the sampling medium during its application to a surface and subsequent storage as long as the substrate was added prior to performing the assay reaction. Our findings demonstrate practical prototypic surface RT-QuIC protocols for the highly sensitive detection of pathologic seeds of α-synuclein, tau, and PrP on solid objects.
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Affiliation(s)
- Christina D. Orrú
- Laboratory of Neurological Infections and Immunity (LNII), Rocky Mountain Laboratories, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Bradley R. Groveman
- Laboratory of Neurological Infections and Immunity (LNII), Rocky Mountain Laboratories, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Andrew G. Hughson
- Laboratory of Neurological Infections and Immunity (LNII), Rocky Mountain Laboratories, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Tomás Barrio
- UMR INRAE ENVT 1225, Interactions Hôtes-Agents Pathogènes, École Nationale Vétérinaire de Toulouse, France
| | - Kachi Isiofia
- Laboratory of Neurological Infections and Immunity (LNII), Rocky Mountain Laboratories, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Brent Race
- Laboratory of Neurological Infections and Immunity (LNII), Rocky Mountain Laboratories, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Natalia C. Ferreira
- Laboratory of Neurological Infections and Immunity (LNII), Rocky Mountain Laboratories, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Pierluigi Gambetti
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - David A. Schneider
- Animal Disease Research Unit, USDA-ARS, Pullman, Washington, United States of America
| | - Kentaro Masujin
- National Institute of Animal Health (NIAH), National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan
| | - Kohtaro Miyazawa
- National Institute of Animal Health (NIAH), National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan
| | - Bernardino Ghetti
- Department of Pathology and Laboratory Medicine, Indiana University, Indianapolis, Indiana, United States of America
| | - Gianluigi Zanusso
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Byron Caughey
- Laboratory of Neurological Infections and Immunity (LNII), Rocky Mountain Laboratories, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
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Fabjan M, Jurečič A, Jerala M, Oblak JP, Frol S. Recurrent Intracerebral Haematomas Due to Amyloid Angyopathy after Lyodura Transplantation in Childhood. Neurol Int 2024; 16:327-333. [PMID: 38525703 PMCID: PMC10961745 DOI: 10.3390/neurolint16020023] [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: 02/11/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/26/2024] Open
Abstract
The number of published cases of presumed iatrogenic cerebral amyloid angiopathy (iCAA) due to the transmission of amyloid β during neurosurgery is slowly rising. One of the potential ways of transmission is through a cadaveric dura mater graft (LYODURA) exposure during neurosurgery. This is a case of a 46-year-old female patient with no chronic conditions who presented with recurrent intracerebral haemorrhages (ICHs) without underlying vessel pathology. Four decades prior, the patient had a neurosurgical procedure with documented LYODURA transplantation. Brain biopsy confirmed CAA. This is a rare case of histologically proven iCAA after a documented LYODURA transplantation in childhood. Our case and already published iCAA cases emphasize the need for considering neurosurgery procedure history as important data in patients who present with ICH possibly related to CAA.
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Affiliation(s)
- Maša Fabjan
- Department of Vascular Neurology, University Medical Center Ljubljana, Zaloška 2, 1000 Ljubljana, Slovenia; (M.F.); (A.J.); (J.P.O.)
| | - Ana Jurečič
- Department of Vascular Neurology, University Medical Center Ljubljana, Zaloška 2, 1000 Ljubljana, Slovenia; (M.F.); (A.J.); (J.P.O.)
| | - Miha Jerala
- Institute of Pathology, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Janja Pretnar Oblak
- Department of Vascular Neurology, University Medical Center Ljubljana, Zaloška 2, 1000 Ljubljana, Slovenia; (M.F.); (A.J.); (J.P.O.)
- Faculty of Medicine, University of Ljubljana, Zaloška 2, 1000 Ljubljana, Slovenia
| | - Senta Frol
- Department of Vascular Neurology, University Medical Center Ljubljana, Zaloška 2, 1000 Ljubljana, Slovenia; (M.F.); (A.J.); (J.P.O.)
- Faculty of Medicine, University of Ljubljana, Zaloška 2, 1000 Ljubljana, Slovenia
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3
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Pikija S, Pretnar-Oblak J, Frol S, Malojcic B, Gattringer T, Rak-Frattner K, Staykov D, Salmaggi A, Milani R, Magdic J, Iglseder S, Trinka E, Kraus T, Toma A, DiFrancesco JC, Tabaee Damavandi P, Fabin N, Bersano A, de la Riva Juez P, Albajar Gomez I, Storti B, Fandler-Höfler S. Iatrogenic cerebral amyloid angiopathy: A multinational case series and individual patient data analysis of the literature. Int J Stroke 2024; 19:314-321. [PMID: 37700397 DOI: 10.1177/17474930231203133] [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] [Indexed: 09/14/2023]
Abstract
BACKGROUND The transmission of amyloid β (Aβ) in humans leading to iatrogenic cerebral amyloid angiopathy (iCAA) is a novel concept with analogies to prion diseases. However, the number of published cases is low, and larger international studies are missing. AIMS We aimed to build a large multinational collaboration on iCAA to better understand the clinical spectrum of affected patients. METHODS We collected clinical data on patients with iCAA from Austria, Croatia, Italy, Slovenia, and Spain. Patients were included if they met the proposed Queen Square diagnostic criteria (QSC) for iCAA. In addition, we pooled data on disease onset, latency, and cerebrospinal fluid (CSF) biomarkers from previously published iCAA cases based on a systematic literature review. RESULTS Twenty-seven patients (22% women) were included in this study. Of these, 19 (70%) met the criteria for probable and 8 (30%) for possible iCAA. Prior neurosurgical procedures were performed in all patients (93% brain surgery, 7% spinal surgery) at median age of 8 (interquartile range (IQR) = 4-18, range = 0-26 years) years. The median symptom latency was 39 years (IQR = 34-41, range = 28-49). The median age at symptom onset was 49 years (IQR = 43-55, range = 32-70). Twenty-one patients (78%) presented with intracranial hemorrhage and 3 (11%) with seizures. CONCLUSIONS Our large international case series of patients with iCAA confirms a wide age boundary for the diagnosis of iCAA. Dissemination of awareness of this rare condition will help to identify more affected patients.
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Affiliation(s)
- Slaven Pikija
- Department of Neurology, Christian Doppler University Hospital, Salzburg, Austria
- Neuroscience Institute, Christian Doppler University Hospital, Centre for Cognitive Neuroscience, Paracelsus Medical University, Salzburg, Austria
| | - Janja Pretnar-Oblak
- Department of Vascular Neurology, Faculty of Medicine, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Senta Frol
- Department of Vascular Neurology, Faculty of Medicine, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Branko Malojcic
- Department of Neurology, Zagreb School of Medicine, University Hospital Center, Zagreb, Croatia
| | - Thomas Gattringer
- Department of Neurology, Medical University of Graz, Graz, Austria
- Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz, Austria
| | - Kinga Rak-Frattner
- Department of Neurology, Krankenhaus der Barmherzigen Brüder, Eisenstadt, Austria
| | - Dimitre Staykov
- Department of Neurology, Krankenhaus der Barmherzigen Brüder, Eisenstadt, Austria
| | - Andrea Salmaggi
- Department of Neurology, Alessandro Manzoni Hospital, Lecco, Italy
| | - Riccardo Milani
- Department of Neurology, Alessandro Manzoni Hospital, Lecco, Italy
| | - Jozef Magdic
- Division of Neurology, University Medical Centre Maribor, Maribor, Slovenia
| | - Sarah Iglseder
- Department of Vascular Neurology, University Medical Centre Innsbruck, Innsbruck, Austria
| | - Eugen Trinka
- Department of Neurology, Christian Doppler University Hospital, Salzburg, Austria
- Neuroscience Institute, Christian Doppler University Hospital, Centre for Cognitive Neuroscience, Paracelsus Medical University, Salzburg, Austria
- Karl Landsteiner Institute for Neurorehabilitation and Space Neurology, Salzburg, Austria
- Department of Public Health, Health Services Research, and Health Technology Assessment, Hall in Tirol, Austria
| | - Theo Kraus
- Department of Pathology, Paracelsus Medical University, Salzburg, Austria
| | - Andreea Toma
- Department of Neurology, Christian Doppler University Hospital, Salzburg, Austria
- Neuroscience Institute, Christian Doppler University Hospital, Centre for Cognitive Neuroscience, Paracelsus Medical University, Salzburg, Austria
| | | | | | - Natalia Fabin
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Anna Bersano
- Cerebrovascular Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Patricia de la Riva Juez
- Stroke Unit, Donostia University Hospital, Neurovascular Diseases, Biodonostia Institute, San Sebastián, Spain
| | - Ines Albajar Gomez
- Stroke Unit, Donostia University Hospital, Neurovascular Diseases, Biodonostia Institute, San Sebastián, Spain
| | - Benedetta Storti
- Cerebrovascular Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
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4
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Nakano H, Hamaguchi T, Ikeda T, Watanabe‐Nakayama T, Ono K, Yamada M. Inactivation of seeding activity of amyloid β‐protein aggregates in vitro. J Neurochem 2021; 160:499-516. [DOI: 10.1111/jnc.15563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 11/25/2021] [Accepted: 12/14/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Hiroto Nakano
- Department of Neurology and Neurobiology of Aging Kanazawa University Graduate School of Medical Sciences Kanazawa Japan
| | - Tsuyoshi Hamaguchi
- Department of Neurology and Neurobiology of Aging Kanazawa University Graduate School of Medical Sciences Kanazawa Japan
| | - Tokuhei Ikeda
- Department of Neurology and Neurobiology of Aging Kanazawa University Graduate School of Medical Sciences Kanazawa Japan
- Department of Neurology Ishikawa Prefectural Central Hospital Kanazawa Japan
| | - Takahiro Watanabe‐Nakayama
- World Premier International Research Center Initiative (WPI)‐Nano Life Science Institute Kanazawa University Kanazawa Japan
| | - Kenjiro Ono
- Division of Neurology Department of Internal Medicine Showa University Tokyo Japan
| | - Masahito Yamada
- Department of Neurology and Neurobiology of Aging Kanazawa University Graduate School of Medical Sciences Kanazawa Japan
- Department of Internal Medicine Department of Neurology Kudanzaka Hospital Tokyo Japan
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5
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Zhang Q, Abdelmotilib H, Larson T, Keomanivong C, Conlon M, Aldridge GM, Narayanan NS. Cortical alpha-synuclein preformed fibrils do not affect interval timing in mice. Neurosci Lett 2021; 765:136273. [PMID: 34601038 DOI: 10.1016/j.neulet.2021.136273] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 09/13/2021] [Accepted: 09/23/2021] [Indexed: 10/20/2022]
Abstract
One hallmark feature of Parkinson's disease (PD) is Lewy body pathology associated with misfolded alpha-synuclein. Previous studies have shown that striatal injection of alpha-synuclein preformed fibrils (PFF) can induce misfolding and aggregation of native alpha-synuclein in a prion-like manner, leading to cell death and motor dysfunction in mouse models. Here, we tested whether alpha-synuclein PFFs injected into the medial prefrontal cortex results in deficits in interval timing, a cognitive task which is disrupted in human PD patients and in rodent models of PD. We injected PFF or monomers of human alpha-synuclein into the medial prefrontal cortex of mice pre-injected with adeno-associated virus (AAV) coding for overexpression of human alpha-synuclein or control protein. Despite notable medial prefrontal cortical synucleinopathy, we did not observe consistent deficits in fixed-interval timing. These results suggest that cortical alpha-synuclein does not reliably disrupt fixed-interval timing.
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Affiliation(s)
- Qiang Zhang
- Department of Neurology, University of Iowa, Iowa City, IA 52242, United States.
| | - Hisham Abdelmotilib
- Department of Neurology, University of Iowa, Iowa City, IA 52242, United States
| | - Travis Larson
- Department of Neurology, University of Iowa, Iowa City, IA 52242, United States
| | - Cameron Keomanivong
- Department of Neurology, University of Iowa, Iowa City, IA 52242, United States
| | - Mackenzie Conlon
- Department of Neurology, University of Iowa, Iowa City, IA 52242, United States
| | - Georgina M Aldridge
- Department of Neurology, University of Iowa, Iowa City, IA 52242, United States
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6
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Fernandes AR, Dujardin S, Maté de Gérando A, Hyman BT, Frosch MP. Impact of Sterilization Methods on the Seeding Ability of Human Tau Proteopathic Seeds. J Neuropathol Exp Neurol 2021; 80:912-921. [PMID: 34498073 DOI: 10.1093/jnen/nlab087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The protein tau, when misfolded in neurodegenerative diseases, has several prion-like properties including being able to spread by cell-to-cell transfer, induce templated seeding, and exist in distinct conformational strains. These properties of transmission may present health hazards when lesion-containing biospecimens are used in research and neuropathology laboratories. We evaluated the impact standard sterilization and cleaning methods have on the capacity of tau seeds to induce aggregation. We employed a previously developed, highly sensitive FRET-based biosensor assay to assess remnant tau seeding after exposure to these procedures. For tau species derived from human Alzheimer disease tissue (brain homogenate and sarkosyl-insoluble fibrils), both autoclaving and incubation in 90.6% formic acid were sufficient to reduce tau bioactivity. By contrast, boiling was not always effective in completely blocking bioactivity in the seeding assay. Notably, only formic acid incubation was able to produce a similar reduction in tissue from a P301L mutant tau mouse model of tauopathy. Our study highlights nuances in methods for inactivation of tau seeding which may support adapted tissue processing procedures, especially in research settings. These findings also highlight the importance of universal precautions when handling human neuropathological and research laboratory materials.
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Affiliation(s)
- Analiese R Fernandes
- From the Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts, USA
| | - Simon Dujardin
- From the Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA (SD, AMdG, BTH, MPF)
| | - Anastasie Maté de Gérando
- From the Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA (SD, AMdG, BTH, MPF)
| | - Bradley T Hyman
- From the Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA (SD, AMdG, BTH, MPF).,C.S. Kubik Laboratory for Neuropathology, Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Matthew P Frosch
- From the Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA (SD, AMdG, BTH, MPF).,C.S. Kubik Laboratory for Neuropathology, Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts, USA
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7
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Thomzig A, Wagenführ K, Pinder P, Joncic M, Schulz-Schaeffer WJ, Beekes M. Transmissible α-synuclein seeding activity in brain and stomach of patients with Parkinson's disease. Acta Neuropathol 2021; 141:861-879. [PMID: 33895878 PMCID: PMC8068459 DOI: 10.1007/s00401-021-02312-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/13/2021] [Accepted: 04/14/2021] [Indexed: 02/02/2023]
Abstract
Cerebral deposition of abnormally aggregated α-synuclein (αSyn) is a neuropathological hallmark of Parkinson’s disease (PD). PD-associated αSyn (αSynPD) aggregates can act as proteinaceous nuclei (“seeds”) able of self-templated propagation. Since this is strikingly reminiscent to properties of proteinaceous infectious particles (prions), lessons learned from prion diseases suggest to test whether transferred αSynPD can propagate and induce neurological impairments or disease in a new host. Two studies that addressed this question provided divergent results. Intracerebral (i.c.) injection of Lewy body extracts from PD patients caused cerebral αSyn pathology, as well as nigrostriatal neurodegeneration, of wild-type mice and macaques, with the mice also showing motor impairments (Recasens et al. 2014, Ann Neurol 75:351–362). In contrast, i.c. transmission of homogenates from PD brains did not stimulate, after “> 360” days post-injection (dpi), pathological αSyn conversion or clinical symptoms in transgenic TgM83+/− mice hemizygously expressing mutated (A53T) human αSyn (Prusiner et al. 2015, PNAS 112:E5308–E5317). To advance the assessment of possible αSynPD hazards by providing further data, we examined neuropathological and clinical effects upon i.c. transmission of brain, stomach wall and muscle tissue as well as blood from PD patients in TgM83+/− mice up to 612 dpi. This revealed a subtle, yet distinctive stimulation of localized αSyn aggregation in the somatodendritic compartment and dystrophic neurites of individual or focally clustered cerebral neurons after challenge with brain and stomach wall homogenates. No such effect was observed with transmitted blood or homogenized muscle tissue. The detected stimulation of αSyn aggregation was not accompanied by apparent motor impairments or overt neurological disease in TgM83+/− mice. Our study substantiated that transmitted αSynPD seeds, including those from the stomach wall, are able to propagate in new mammalian hosts. The consequences of such propagation and potential safeguards need to be further investigated.
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8
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Asher DM, Belay E, Bigio E, Brandner S, Brubaker SA, Caughey B, Clark B, Damon I, Diamond M, Freund M, Hyman BT, Jucker M, Keene CD, Lieberman AP, Mackiewicz M, Montine TJ, Morgello S, Phelps C, Safar J, Schneider JA, Schonberger LB, Sigurdson C, Silverberg N, Trojanowski JQ, Frosch MP. Risk of Transmissibility From Neurodegenerative Disease-Associated Proteins: Experimental Knowns and Unknowns. J Neuropathol Exp Neurol 2021; 79:1141-1146. [PMID: 33000167 PMCID: PMC7577514 DOI: 10.1093/jnen/nlaa109] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Recent studies in animal models demonstrate that certain misfolded proteins associated with neurodegenerative diseases can support templated misfolding of cognate native proteins, to propagate across neural systems, and to therefore have some of the properties of classical prion diseases like Creutzfeldt-Jakob disease. The National Institute of Aging convened a meeting to discuss the implications of these observations for research priorities. A summary of the discussion is presented here, with a focus on limitations of current knowledge, highlighting areas that appear to require further investigation in order to guide scientific practice while minimizing potential exposure or risk in the laboratory setting. The committee concluded that, based on all currently available data, although neurodegenerative disease-associated aggregates of several different non-prion proteins can be propagated from humans to experimental animals, there is currently insufficient evidence to suggest more than a negligible risk, if any, of a direct infectious etiology for the human neurodegenerative disorders defined in part by these proteins. Given the importance of this question, the potential for noninvasive human transmission of proteopathic disorders is deserving of further investigation.
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Affiliation(s)
- David M Asher
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland
| | - Ermias Belay
- Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Eileen Bigio
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Sebastian Brandner
- Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology Queen Square, London
| | - Scott A Brubaker
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland
| | - Byron Caughey
- Laboratory of Persistent Viral Diseases, Rocky Mountain Laboratories, National Institute for Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana
| | - Brychan Clark
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland
| | - Inger Damon
- Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Marc Diamond
- Center for Alzheimer's and Neurodegenerative Diseases, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Michelle Freund
- National Institute on Drug Abuse, National Institutes of Health, Bethesda, Maryland
| | - Bradley T Hyman
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Mathias Jucker
- Hertie Institute for Clinical Brain Research, University of Tübingen and German Center for Neurodegenerative Diseases (DZNE), Tübingen
| | - C Dirk Keene
- Department of Pathology, University of Washington, Seattle, Washington
| | - Andrew P Lieberman
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Miroslaw Mackiewicz
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland
| | - Thomas J Montine
- Department of Pathology, Stanford University, Stanford, California
| | - Susan Morgello
- Departments of Neurology, Neuroscience, and Pathology, The Icahn School of Medicine at Mount Sinai, New York, New York
| | - Creighton Phelps
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland
| | - Jiri Safar
- Departments of Pathology and Neurology, Case Western Reserve University, Cleveland, Ohio
| | - Julie A Schneider
- Department of Neurological Sciences, Rush Alzheimer Disease Center, Rush University Medical Center, Chicago, Illinois
| | - Lawrence B Schonberger
- Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Christina Sigurdson
- Department of Pathology, University of California - San Diego, San Diego, California
| | - Nina Silverberg
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland
| | - John Q Trojanowski
- Department of Pathology and Laboratory Medicine, Institute on Aging and Center for Neurodegenerative Disease Research, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Matthew P Frosch
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.,Department of Pathology, University of Washington, Seattle, Washington.,C.S. Kubik Laboratory for Neuropathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
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9
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Pinder P, Thomzig A, Schulz-Schaeffer WJ, Beekes M. Alpha-synuclein seeds of Parkinson's disease show high prion-exceeding resistance to steam sterilization. J Hosp Infect 2020; 108:25-32. [PMID: 33137444 DOI: 10.1016/j.jhin.2020.10.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/22/2020] [Accepted: 10/26/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Cerebral deposition of abnormally misfolded and aggregated alpha-synuclein (αSyn) is a neuropathological hallmark of Parkinson's disease (PD). Pathologically aggregated αSyn species of PD (αSynPD) can act, in a 'prion-like' manner, as proteinaceous nuclei ('seeds') which are capable of self-templated propagation. This has raised concerns that αSynPD seeds transmitted iatrogenically between humans may stimulate αSyn pathologies or clinically harmful effects in the recipients. Effective decontamination when reprocessing medical devices could significantly counteract such risks. Steam sterilization at 134°C is recommended as an essential pathogen inactivation step in many reprocessing guidelines for medical devices, and also shows effectiveness against prions, the self-propagating biological agents long thought to exhibit the highest resistance to steam sterilization. METHODS This study examined the reduction in αSynPD seeding activity in brain tissue homogenates from patients with PD after steam sterilization at 134°C using a specifically adapted real-time quaking induced conversion assay. FINDINGS Titres of approximately 1010 50% seeding doses per gram were detected in non-steam-sterilized caudate nucleus tissue of patients with PD by endpoint titration. Five minutes of steam sterilization reduced this titre by only 2.25 ± 0.15 decadic-logarithmic units, with an extension of the sterilization time to 90 min not causing additional inactivation. These findings reveal that αSynPD species are disease-associated biological agents with seeding activity that has higher resistance to steam sterilization than prions. CONCLUSION The remarkable heat resistance of αSynPD seeds calls for thoroughly validated cleaning and disinfection methods that reliably remove or inactivate possible contaminations of seeding-active αSyn aggregates when reprocessing medical devices.
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Affiliation(s)
- P Pinder
- Prion and Prionoid Research Unit, ZBS 6 - Proteomics and Spectroscopy, ZBS - Centre for Biological Threads and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - A Thomzig
- Prion and Prionoid Research Unit, ZBS 6 - Proteomics and Spectroscopy, ZBS - Centre for Biological Threads and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - W J Schulz-Schaeffer
- Institute of Neuropathology, Saarland University Medical Centre, Homburg, Germany
| | - M Beekes
- Prion and Prionoid Research Unit, ZBS 6 - Proteomics and Spectroscopy, ZBS - Centre for Biological Threads and Special Pathogens, Robert Koch Institute, Berlin, Germany.
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Tarutani A, Hasegawa M. Prion-like propagation of α-synuclein in neurodegenerative diseases. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2019; 168:323-348. [PMID: 31699325 DOI: 10.1016/bs.pmbts.2019.07.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Prions are defined as proteinaceous infectious particles that do not contain nucleic acids. Neuropathological investigations of post-mortem brains and recent studies of experimental transmission have suggested that amyloid-like abnormal protein aggregates, which are the defining feature of many neurodegenerative diseases, behave like prions and propagate throughout the brain. This prion-like propagation may be the underlying mechanism of onset and progression of neurodegenerative diseases, although the precise molecular mechanisms involved remain unclear. However, in vitro and in vivo experimental models of prion-like propagation using pathogenic protein seeds are well established and are extremely valuable for the exploration and evaluation of novel drugs and therapies for neurodegenerative diseases for which there is no effective treatment. In this chapter, we introduce the experimental models of prion-like propagation of α-synuclein, which is accumulated in Parkinson's disease, dementia with Lewy bodies, and multiple system atrophy, and we describe their applications for the development of new diagnostic and therapeutic modalities. We also introduce the concept of "α-syn strains," which may underlie the pathological and clinical diversity of α-synucleinopathies.
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Affiliation(s)
- Airi Tarutani
- Department of Dementia and Higher Brain Function, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan; Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Masato Hasegawa
- Department of Dementia and Higher Brain Function, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.
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12
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Phan HTM, Bartz JC, Ayers J, Giasson BI, Schubert M, Rodenhausen KB, Kananizadeh N, Li Y, Bartelt-Hunt SL. Adsorption and decontamination of α-synuclein from medically and environmentally-relevant surfaces. Colloids Surf B Biointerfaces 2018; 166:98-107. [PMID: 29550546 PMCID: PMC5911191 DOI: 10.1016/j.colsurfb.2018.03.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 02/28/2018] [Accepted: 03/08/2018] [Indexed: 11/20/2022]
Abstract
The assembly and accumulation of α-synuclein fibrils are implicated in the development of several neurodegenerative disorders including multiple system atrophy and Parkinson's disease. Pre-existing α-synuclein fibrils can recruit and convert soluble non-fibrillar α-synuclein to the fibrillar form similar to what is observed in prion diseases. This raises concerns regarding attachment of fibrillary α-synuclein to medical instruments and subsequent exposure of patients to α-synuclein similar to what has been observed in iatrogenic transmission of prions. Here, we evaluated adsorption and desorption of α-synuclein to two surfaces: stainless steel and a gold surface coated with a 11-Amino-1-undecanethiol hydrochloride self-assembled-monolayer (SAM) using in-situ combinatorial quartz crystal microbalance with dissipation and spectroscopic ellipsometry. α-Synuclein was found to attach to both surfaces, however, increased α-synuclein adsorption was observed onto the positively charged SAM surface compared to the stainless steel surface. Dynamic light scattering data showed that larger α-synuclein fibrils were preferentially attached to the stainless steel surface when compared with the distributions in the original α-synuclein solution and on the SAM surface. We determined that after attachment, introduction of a 1N NaOH solution could completely remove α-synuclein adsorbed on the stainless steel surface while α-synuclein was retained on the SAM surface. Our results indicate α-synuclein can bind to multiple surface types and that decontamination is surface-dependent.
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Affiliation(s)
- Hanh T M Phan
- Department of Civil Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States
| | - Jason C Bartz
- Department of Medical Microbiology and Immunology, Creighton University, United States
| | - Jacob Ayers
- Department of Neuroscience, University of Florida, United States
| | - Benoit I Giasson
- Department of Neuroscience, University of Florida, United States
| | - Mathias Schubert
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States
| | - Keith B Rodenhausen
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States; Biolin Scientific, Inc., Paramus, NJ, United States
| | - Negin Kananizadeh
- Department of Civil Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States
| | - Yusong Li
- Department of Civil Engineering, University of Nebraska-Lincoln, United States
| | - Shannon L Bartelt-Hunt
- Department of Civil Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States.
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Jaunmuktane Z, Quaegebeur A, Taipa R, Viana-Baptista M, Barbosa R, Koriath C, Sciot R, Mead S, Brandner S. Evidence of amyloid-β cerebral amyloid angiopathy transmission through neurosurgery. Acta Neuropathol 2018; 135:671-679. [PMID: 29450646 PMCID: PMC5904220 DOI: 10.1007/s00401-018-1822-2] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 02/07/2018] [Accepted: 02/08/2018] [Indexed: 12/14/2022]
Abstract
Amyloid-β (Aβ) is a peptide deposited in the brain parenchyma in Alzheimer's disease and in cerebral blood vessels, causing cerebral amyloid angiopathy (CAA). Aβ pathology is transmissible experimentally in animals and through medical procedures in humans, such as contaminated growth hormone or dura mater transplantation in the context of iatrogenic prion disease. Here, we present four patients who underwent neurosurgical procedures during childhood or teenage years and presented with intracerebral haemorrhage approximately three decades later, caused by severe CAA. None of these patients carried pathogenic mutations associated with early Aβ pathology development. In addition, we identified in the literature four patients with a history of neurosurgical intervention and subsequent development of CAA. These findings raise the possibility that Aβ pathology may be transmissible, as prion disease is, through neurosurgical procedures.
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Affiliation(s)
- Zane Jaunmuktane
- Division of Neuropathology, The National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London, WC1N 3BG, UK
- Department of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK
| | - Annelies Quaegebeur
- Division of Neuropathology, The National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London, WC1N 3BG, UK
| | - Ricardo Taipa
- Portuguese Brain Bank, Neuropathology Unit, Department of Neuroscience, Centro Hospitalar Universitario do Porto, 4099-001, Porto, Portugal
| | - Miguel Viana-Baptista
- Department of Neurology, Hospital Egas Moniz, Centro Hospitalar de Lisboa Ocidental, 1449-005, Lisbon, Portugal
| | - Raquel Barbosa
- Department of Neurology, Hospital Egas Moniz, Centro Hospitalar de Lisboa Ocidental, 1449-005, Lisbon, Portugal
| | - Carolin Koriath
- Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK
| | - Raf Sciot
- Department of Imaging and Pathology, University of Leuven, 3000, Louvain, Belgium
| | - Simon Mead
- Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK
- Medical Research Council Prion Unit at UCL, UCL Institute of Prion Diseases, Queen Square, London, WC1N 3BG, UK
- National Prion Clinic, National Hospital for Neurology and Neurosurgery, UCL Hospitals NHS Foundation Trust, Queen Square, London, WC1N 3BG, UK
| | - Sebastian Brandner
- Division of Neuropathology, The National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London, WC1N 3BG, UK.
- Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK.
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Tarutani A, Arai T, Murayama S, Hisanaga SI, Hasegawa M. Potent prion-like behaviors of pathogenic α-synuclein and evaluation of inactivation methods. Acta Neuropathol Commun 2018; 6:29. [PMID: 29669601 PMCID: PMC5907316 DOI: 10.1186/s40478-018-0532-2] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 04/06/2018] [Indexed: 11/25/2022] Open
Abstract
The concept that abnormal protein aggregates show prion-like propagation between cells has been considered to explain the onset and progression of many neurodegenerative diseases. Indeed, both synthetic amyloid-like fibrils and pathogenic proteins extracted from patients’ brains induce self-templated amplification and cell-to-cell transmission in vitro and in vivo. However, it is unclear whether exposure to exogenous prion-like proteins can potentially cause these diseases in humans. Here, we investigated in detail the prion-like seeding activities of several kinds of pathogenic α-synuclein (α-syn), including synthetic fibrils and detergent-insoluble fractions extracted from brains of patients with α-synucleinopathies. Exposure to synthetic α-syn fibrils at concentrations above 100 pg/mL caused seeded aggregation of α-syn in SH-SY5Y cells, and seeded aggregation was also observed in C57BL/6 J mice after intracerebral inoculation of at least 0.1 μg/animal. α-Syn aggregates extracted from brains of multiple system atrophy (MSA) patients showed higher seeding activity than those extracted from patients with dementia with Lewy bodies (DLB), and their potency was similar to that of synthetic α-syn fibrils. We also examined the effects of various methods that have been reported to inactivate abnormal prion proteins (PrPSc), including autoclaving at various temperatures, exposure to sodium dodecyl sulfate (SDS), and combined treatments. The combination of autoclaving and 1% SDS substantially reduced the seeding activities of synthetic α-syn fibrils and α-syn aggregates extracted from MSA brains. However, single treatment with 1% SDS or generally used sterilization conditions proved insufficient to prevent accumulation of pathological α-syn. In conclusion, α-syn aggregates derived from MSA patients showed a potent prion-like seeding activity, which could be efficiently reduced by combined use of SDS and autoclaving.
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Woerman AL, Kazmi SA, Patel S, Freyman Y, Oehler A, Aoyagi A, Mordes DA, Halliday GM, Middleton LT, Gentleman SM, Olson SH, Prusiner SB. MSA prions exhibit remarkable stability and resistance to inactivation. Acta Neuropathol 2018; 135:49-63. [PMID: 28849371 DOI: 10.1007/s00401-017-1762-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 08/01/2017] [Accepted: 08/02/2017] [Indexed: 01/23/2023]
Abstract
In multiple system atrophy (MSA), progressive neurodegeneration results from the protein α-synuclein misfolding into a self-templating prion conformation that spreads throughout the brain. MSA prions are transmissible to transgenic (Tg) mice expressing mutated human α-synuclein (TgM83+/-), inducing neurological disease following intracranial inoculation with brain homogenate from deceased patient samples. Noting the similarities between α-synuclein prions and PrP scrapie (PrPSc) prions responsible for Creutzfeldt-Jakob disease (CJD), we investigated MSA transmission under conditions known to result in PrPSc transmission. When peripherally exposed to MSA via the peritoneal cavity, hind leg muscle, and tongue, TgM83+/- mice developed neurological signs accompanied by α-synuclein prions in the brain. Iatrogenic CJD, resulting from PrPSc prion adherence to surgical steel instruments, has been investigated by incubating steel sutures in contaminated brain homogenate before implantation into mouse brain. Mice studied using this model for MSA developed disease, whereas wire incubated in control homogenate had no effect on the animals. Notably, formalin fixation did not inactivate α-synuclein prions. Formalin-fixed MSA patient samples also transmitted disease to TgM83+/- mice, even after incubating in fixative for 244 months. Finally, at least 10% sarkosyl was found to be the concentration necessary to partially inactivate MSA prions. These results demonstrate the robustness of α-synuclein prions to denaturation. Moreover, they establish the parallel characteristics between PrPSc and α-synuclein prions, arguing that clinicians should exercise caution when working with materials that might contain α-synuclein prions to prevent disease.
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Harms AS, Delic V, Thome AD, Bryant N, Liu Z, Chandra S, Jurkuvenaite A, West AB. α-Synuclein fibrils recruit peripheral immune cells in the rat brain prior to neurodegeneration. Acta Neuropathol Commun 2017; 5:85. [PMID: 29162163 PMCID: PMC5698965 DOI: 10.1186/s40478-017-0494-9] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 11/12/2017] [Indexed: 12/20/2022] Open
Abstract
Genetic variation in a major histocompatibility complex II (MHCII)-encoding gene (HLA-DR) increases risk for Parkinson disease (PD), and the accumulation of MHCII-expressing immune cells in the brain correlates with α-synuclein inclusions. However, the timing of MHCII-cell recruitment with respect to ongoing neurodegeneration, and the types of cells that express MHCII in the PD brain, has been difficult to understand. Recent studies show that the injection of short α-synuclein fibrils into the rat substantia nigra pars compacta (SNpc) induces progressive inclusion formation in SNpc neurons that eventually spread to spiny projection neurons in the striatum. Herein, we find that α-synuclein fibrils rapidly provoke a persistent MHCII response in the brain. In contrast, equivalent amounts of monomeric α-synuclein fail to induce MHCII or persistent microglial activation, consistent with our results in primary microglia. Flow cytometry and immunohistochemical analyses reveal that MHCII-expressing cells are composed of both resident microglia as well as cells from the periphery that include monocytes, macrophages, and lymphocytes. Over time, α-Synuclein fibril exposures in the SNpc causes both axon loss as well as monocyte recruitment in the striatum. While these monocytes in the striatum initially lack MHCII expression, α-synuclein inclusions later form in nearby spiny projection neurons and MHCII expression becomes robust. In summary, in the rat α-synuclein fibril model, peripheral immune cell recruitment occurs prior to neurodegeneration and microglia, monocytes and macrophages all contribute to MHCII expression.
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Affiliation(s)
- Ashley S Harms
- Department of Neurology, Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
- , 1719 6th Ave South, Birmingham, AL, 35233, USA.
| | - Vedad Delic
- Department of Neurology, Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Aaron D Thome
- Department of Neurology, Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Nicole Bryant
- Department of Neurology, Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Zhiyong Liu
- Department of Neurology, Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Sidhanth Chandra
- Department of Neurology, Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Asta Jurkuvenaite
- Department of Neurology, Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Andrew B West
- Department of Neurology, Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
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Giles K, Woerman AL, Berry DB, Prusiner SB. Bioassays and Inactivation of Prions. Cold Spring Harb Perspect Biol 2017; 9:cshperspect.a023499. [PMID: 28246183 DOI: 10.1101/cshperspect.a023499] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The experimental study of prions requires a model for their propagation. However, because prions lack nucleic acids, the simple techniques used to replicate bacteria and viruses are not applicable. For much of the history of prion research, time-consuming bioassays in animals were the only option for measuring infectivity. Although cell models and other in vitro tools for the propagation of prions have been developed, they all suffer limitations, and animal bioassays remain the gold standard for measuring infectivity. A wealth of recent data argues that both β-amyloid (Aβ) and tau proteins form prions that cause Alzheimer's disease, and α-synuclein forms prions that cause multiple system atrophy and Parkinson's disease. Cell and animal models that recapitulate some of the key features of cell-to-cell spreading and distinct strains of prions can now be measured.
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Affiliation(s)
- Kurt Giles
- Institute for Neurodegenerative Diseases, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, California 94158.,Department of Neurology, University of California, San Francisco, San Francisco, California 94158
| | - Amanda L Woerman
- Institute for Neurodegenerative Diseases, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, California 94158.,Department of Neurology, University of California, San Francisco, San Francisco, California 94158
| | - David B Berry
- Institute for Neurodegenerative Diseases, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, California 94158
| | - Stanley B Prusiner
- Institute for Neurodegenerative Diseases, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, California 94158.,Department of Neurology, University of California, San Francisco, San Francisco, California 94158.,Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, California 94158
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Abdelmotilib H, Maltbie T, Delic V, Liu Z, Hu X, Fraser KB, Moehle MS, Stoyka L, Anabtawi N, Krendelchtchikova V, Volpicelli-Daley LA, West A. α-Synuclein fibril-induced inclusion spread in rats and mice correlates with dopaminergic Neurodegeneration. Neurobiol Dis 2017; 105:84-98. [PMID: 28576704 DOI: 10.1016/j.nbd.2017.05.014] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 05/09/2017] [Accepted: 05/29/2017] [Indexed: 01/26/2023] Open
Abstract
Proteinaceous inclusions in neurons, composed primarily of α-synuclein, define the pathology in several neurodegenerative disorders. Neurons can internalize α-synuclein fibrils that can seed new inclusions from endogenously expressed α-synuclein. The factors contributing to the spread of pathology and subsequent neurodegeneration are not fully understood, and different compositions and concentrations of fibrils have been used in different hosts. Here, we systematically vary the concentration and length of well-characterized α-synuclein fibrils and determine their relative ability to induce inclusions and neurodegeneration in different hosts (primary neurons, C57BL/6J and C3H/HeJ mice, and Sprague Dawley rats). Using dynamic-light scattering profiles and other measurements to determine fibril length and concentration, we find that femptomolar concentrations of fibrils are sufficient to induce robust inclusions in primary neurons. However, a narrow and non-linear dynamic range characterizes fibril-mediated inclusion induction in axons and the soma. In mice, the C3H/HeJ strain is more sensitive to fibril exposures than C57BL/6J counterparts, with more inclusions and dopaminergic neurodegeneration. In rats, injection of fibrils into the substantia nigra pars compacta (SNpc) results in similar inclusion spread and dopaminergic neurodegeneration as injection of the fibrils into the dorsal striatum, with prominent inclusion spread to the amygdala and several other brain areas. Inclusion spread, particularly from the SNpc to the striatum, positively correlates with dopaminergic neurodegeneration. These results define biophysical characteristics of α-synuclein fibrils that induce inclusions and neurodegeneration both in vitro and in vivo, and suggest that inclusion spread in the brain may be promoted by a loss of neurons.
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Affiliation(s)
- Hisham Abdelmotilib
- Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Tyler Maltbie
- Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Vedad Delic
- Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Zhiyong Liu
- Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Xianzhen Hu
- Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Kyle B Fraser
- Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Mark S Moehle
- Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Lindsay Stoyka
- Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Nadia Anabtawi
- Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Valentina Krendelchtchikova
- Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Laura A Volpicelli-Daley
- Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Andrew West
- Center for Neurodegeneration and Experimental Therapeutics, University of Alabama at Birmingham, Birmingham, AL, USA.
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Coulthart MB, Jansen GH, Cashman NR. Evidence for transmissibility of Alzheimer disease pathology: Cause for concern? CMAJ 2016; 188:E210-E212. [PMID: 26833733 PMCID: PMC4938704 DOI: 10.1503/cmaj.151257] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Michael B Coulthart
- Canadian Creuztfeldt-Jakob Disease Surveillance System (Coulthart), Public Health Agency of Canada, Ottawa, Ont.; Department of Pathology and Laboratory Medicine (Jansen), The Ottawa Hospital - Civic Campus, Ottawa, Ont.; Brain Research Centre (Cashman), University of British Columbia, Vancouver, BC
| | - Gerard H Jansen
- Canadian Creuztfeldt-Jakob Disease Surveillance System (Coulthart), Public Health Agency of Canada, Ottawa, Ont.; Department of Pathology and Laboratory Medicine (Jansen), The Ottawa Hospital - Civic Campus, Ottawa, Ont.; Brain Research Centre (Cashman), University of British Columbia, Vancouver, BC
| | - Neil R Cashman
- Canadian Creuztfeldt-Jakob Disease Surveillance System (Coulthart), Public Health Agency of Canada, Ottawa, Ont.; Department of Pathology and Laboratory Medicine (Jansen), The Ottawa Hospital - Civic Campus, Ottawa, Ont.; Brain Research Centre (Cashman), University of British Columbia, Vancouver, BC
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