1
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Denouel A, Brandel JP, Peckeu-Abboud L, Seilhean D, Bouaziz-Amar E, Quadrio I, Oudart JB, Lehmann S, Bellecave P, Laplanche JL, Haik S. Prospective 25-year surveillance of prion diseases in France, 1992 to 2016: a slow waning of epidemics and an increase in observed sporadic forms. Euro Surveill 2023; 28:2300101. [PMID: 38099349 PMCID: PMC10831413 DOI: 10.2807/1560-7917.es.2023.28.50.2300101] [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: 02/09/2023] [Accepted: 06/01/2023] [Indexed: 12/17/2023] Open
Abstract
BackgroundPrion diseases are rare, fatal disorders that have repeatedly raised public health concerns since the early 1990s. An active prion disease surveillance network providing national level data was implemented in France in 1992.AimWe aimed to describe the epidemiology of sporadic, genetic and infectious forms of prion diseases in France since surveillance implementation.MethodsWe included all suspected cases notified from January 1992 to December 2016, and cases who died during the period with a definite or probable prion disease diagnosis according to EuroCJD criteria. Demographic, clinical, genetic, neuropathological and biochemical data were collected.ResultsIn total, 25,676 suspected cases were notified and 2,907 were diagnosed as prion diseases, including 2,510 (86%) with sporadic Creutzfeldt-Jakob disease (sCJD), 240 (8%) genetic and 157 (6%) with infectious prion disease. Suspected cases and sCJD cases increased over time. Younger sCJD patients (≤ 50 years) showed phenotypes related to a distinct molecular subtype distribution vs those above 50 years. Compared to other European countries, France has had a higher number of cases with iatrogenic CJD after growth hormone treatment and variant CJD (vCJD) linked to bovine spongiform encephalopathy (second after the United Kingdom), but numbers slowly decreased over time.ConclusionWe observed a decrease of CJD infectious forms, demonstrating the effectiveness of measures to limit human exposure to exogenous prions. However, active surveillance is needed regarding uncertainties about future occurrences of vCJD, possible zoonotic potential of chronic wasting diseases in cervids and increasing trends of sCJD observed in France and other countries.
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Affiliation(s)
- Angéline Denouel
- Paris Brain Institute (Institut du Cerveau, ICM), INSERM, CNRS, Assistance Publique-Hôpitaux de Paris (AP-HP), Sorbonne Université, Paris, France
| | - Jean-Philippe Brandel
- Paris Brain Institute (Institut du Cerveau, ICM), INSERM, CNRS, Assistance Publique-Hôpitaux de Paris (AP-HP), Sorbonne Université, Paris, France
- Assistance Publique-Hôpitaux de Paris (AP-HP), Cellule nationale de référence des Maladies de Creutzfeldt-Jakob, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Laurène Peckeu-Abboud
- Department of Clinical Sciences, Clinical Immunology Unit, Institute of Tropical Medicine, Antwerp, Belgium
| | - Danielle Seilhean
- Paris Brain Institute (Institut du Cerveau, ICM), INSERM, CNRS, Assistance Publique-Hôpitaux de Paris (AP-HP), Sorbonne Université, Paris, France
| | - Elodie Bouaziz-Amar
- Département de Biochimie et Biologie Moléculaire, Hôpitaux Lariboisière-Fernand Widal, Paris, France
- INSERM, UMR 1144, 'Optimisation Thérapeutique en Neuropsychopharmacologie', Paris, France
| | - Isabelle Quadrio
- Neurochemistry and Neurogenetics Unit, Department of Biochemistry and Molecular Biology, Lyon University Hospital, Bron, France
- CNRS UMR5292, INSERM U1028, University of Lyon 1, BioRan, Lyon, Paris
| | - Jean-Baptiste Oudart
- CHU Reims, Pôle de Biologie, Service de Biochimie - Pharmacologie - Toxicologie, Reims, France
- Université de Reims Champagne-Ardenne, SFR CAP-Santé (FED 4231), Laboratoire de Biochimie Médicale et Biologie Moléculaire, Reims, France
- CNRS UMR 7369, Matrice Extracellulaire et Dynamique Cellulaire - MEDyC, Reims, France
| | - Sylvain Lehmann
- Université de Montpellier, IRMB, INM, INSERM, CHU de Montpellier, Laboratoire Biochimie-Protéomique clinique, Montpellier, France
| | | | - Jean-Louis Laplanche
- Département de Biochimie et Biologie Moléculaire, Hôpitaux Lariboisière-Fernand Widal, Paris, France
- INSERM, UMR 1144, 'Optimisation Thérapeutique en Neuropsychopharmacologie', Paris, France
| | - Stéphane Haik
- Paris Brain Institute (Institut du Cerveau, ICM), INSERM, CNRS, Assistance Publique-Hôpitaux de Paris (AP-HP), Sorbonne Université, Paris, France
- Assistance Publique-Hôpitaux de Paris (AP-HP), Cellule nationale de référence des Maladies de Creutzfeldt-Jakob, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
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2
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Myskiw J, Lamoureux L, Peterson A, Knox D, Jansen GH, Coulthart MB, Booth SA. Development of an Automated Capillary Immunoassay to Detect Prion Glycotypes in Creutzfeldt-Jakob Disease. J Transl Med 2023; 103:100029. [PMID: 36925197 DOI: 10.1016/j.labinv.2022.100029] [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: 10/10/2021] [Revised: 09/23/2022] [Accepted: 11/07/2022] [Indexed: 01/11/2023] Open
Abstract
Creutzfeldt-Jakob disease (CJD) comprises a group of transmissible neurodegenerative diseases with vast phenotypic diversity. Sporadic CJD heterogeneity is predominantly influenced by the genotype at codon 129 of the prion-encoding gene and the molecular weight of PrPSc fragments after protease digestion, resulting in a classification of 6 subtypes of CJD (MM1, MM2, MV1, MV2, VV1, and VV2). The majority of cases with CJD can be distinguished using this classification system. However, a number of reported CJD cases are phenotypically unique from others within their same subtype, such as variably protease-sensitive prionopathies, or exist as a mixture of subtypes within the same patient. Western blotting of brain tissue, along with the genotyping of codon 129 of the prion-encoding gene, is considered the "gold standard" for the biochemical characterization of CJD. Western blotting requires a significant amount of prion protein for detection, is labor-intensive, and is also associated with high interassay variability. In addition to these limitations, a growing body of research suggests that unique subtypes of CJD are often undetected or misdiagnosed using standard diagnostic western blotting protocols. Consequently, we successfully optimized and developed a capillary-based western assay using the JESS Simple Western (ProteinSimple) to detect and characterize prion proteins from patients with CJD. We found that this novel assay consistently differentiated CJD type 1 and type 2 cases with a limit of detection 10 to 100× higher than traditional western blotting. Cases with CJD in which type 1 and type 2 coexist within the same brain region can be detected using type 1-specific and type 2-specific antibodies, and we found that there was remarkable specificity for the detection of cases with variably protease-sensitive prionopathy. The assay presented displays outstanding sensitivity, allowing for the preservation of valuable samples and enhancing current detection methods.
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Affiliation(s)
- Jennifer Myskiw
- One Health Division, Public Health Agency of Canada, National Microbiology Laboratory, Winnipeg, Manitoba, Canada; Department of Medical Microbiology and Infectious Diseases, Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Lise Lamoureux
- One Health Division, Public Health Agency of Canada, National Microbiology Laboratory, Winnipeg, Manitoba, Canada
| | - Anne Peterson
- One Health Division, Public Health Agency of Canada, National Microbiology Laboratory, Winnipeg, Manitoba, Canada
| | - David Knox
- One Health Division, Public Health Agency of Canada, National Microbiology Laboratory, Winnipeg, Manitoba, Canada
| | - Gerard H Jansen
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Michael B Coulthart
- Canadian Creutzfeldt-Jakob Disease Surveillance System, Public Health Agency of Canada, Ottawa, Ontario, Canada
| | - Stephanie A Booth
- One Health Division, Public Health Agency of Canada, National Microbiology Laboratory, Winnipeg, Manitoba, Canada; Department of Medical Microbiology and Infectious Diseases, Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.
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3
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In vitro Modeling of Prion Strain Tropism. Viruses 2019; 11:v11030236. [PMID: 30857283 PMCID: PMC6466166 DOI: 10.3390/v11030236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 12/30/2022] Open
Abstract
Prions are atypical infectious agents lacking genetic material. Yet, various strains have been isolated from animals and humans using experimental models. They are distinguished by the resulting pattern of disease, including the localization of PrPsc deposits and the spongiform changes they induce in the brain of affected individuals. In this paper, we discuss the emerging use of cellular and acellular models to decipher the mechanisms involved in the strain-specific targeting of distinct brain regions. Recent studies suggest that neuronal cultures, protein misfolding cyclic amplification, and combination of both approaches may be useful to explore this under-investigated but central domain of the prion field.
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4
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Peckeu L, Delasnerie-Lauprètre N, Brandel JP, Salomon D, Sazdovitch V, Laplanche JL, Duyckaerts C, Seilhean D, Haïk S, Hauw JJ. Accuracy of diagnosis criteria in patients with suspected diagnosis of sporadic Creutzfeldt-Jakob disease and detection of 14-3-3 protein, France, 1992 to 2009. ACTA ACUST UNITED AC 2018; 22. [PMID: 29043964 PMCID: PMC5710122 DOI: 10.2807/1560-7917.es.2017.22.41.16-00715] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Diagnostic criteria of Creutzfeldt–Jakob disease (CJD), a rare and fatal transmissible nervous system disease with public health implications, are determined by clinical data, electroencephalogram (EEG), detection of 14-3-3 protein in cerebrospinal fluid (CSF), brain magnetic resonance imaging and prion protein gene examination. The specificity of protein 14-3-3 has been questioned. We reviewed data from 1,572 autopsied patients collected over an 18-year period (1992–2009) and assessed whether and how 14-3-3 detection impacted the diagnosis of sporadic CJD in France, and whether this led to the misdiagnosis of treatable disorders. 14-3-3 detection was introduced into diagnostic criteria for CJD in 1998. Diagnostic accuracy decreased from 92% for the 1992–1997 period to 85% for the 1998–2009 period. This was associated with positive detections of 14-3-3 in cases with negative EEG and alternative diagnosis at autopsy. Potentially treatable diseases were found in 163 patients (10.5%). This study confirms the usefulness of the recent modification of diagnosis criteria by the addition of the results of CSF real-time quaking-induced conversion, a method based on prion seed-induced misfolding and aggregation of recombinant prion protein substrate that has proven to be a highly specific test for diagnosis of sporadic CJD.
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Affiliation(s)
- Laurene Peckeu
- Assistance publique-Hôpitaux de Paris (AP-HP), Cellule nationale de référence des maladies de Creutzfeldt-Jakob, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.,Institut National de la Santé et de la Recherche Médicale (Inserm), U1127, Paris, France.,Institut du cerveau et de la moelle épinière (ICM), Paris, France.,These authors contributed equally to this study and share first authorship.,Sorbonne Universités, UPMCUniv Paris 06,UMRS 1127, Paris, France
| | - Nicole Delasnerie-Lauprètre
- These authors contributed equally to this study and share first authorship.,Sorbonne Universités, UPMCUniv Paris 06,UMRS 1127, Paris, France.,Assistance publique-Hôpitaux de Paris (AP-HP), Cellule nationale de référence des maladies de Creutzfeldt-Jakob, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.,Institut National de la Santé et de la Recherche Médicale (Inserm), U1127, Paris, France.,Institut du cerveau et de la moelle épinière (ICM), Paris, France
| | - Jean-Philippe Brandel
- Assistance publique-Hôpitaux de Paris (AP-HP), Cellule nationale de référence des maladies de Creutzfeldt-Jakob, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.,Institut du cerveau et de la moelle épinière (ICM), Paris, France.,Sorbonne Universités, UPMCUniv Paris 06,UMRS 1127, Paris, France.,Institut National de la Santé et de la Recherche Médicale (Inserm), U1127, Paris, France
| | - Dominique Salomon
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unité Mixte de Recherche (UMR) 1153, Paris, France
| | - Véronique Sazdovitch
- Assistance publique-Hôpitaux de Paris (AP-HP), Laboratoire de Neuropathologie Raymond Escourolle, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.,Institut du cerveau et de la moelle épinière (ICM), Paris, France.,Sorbonne Universités, UPMCUniv Paris 06,UMRS 1127, Paris, France.,Institut National de la Santé et de la Recherche Médicale (Inserm), U1127, Paris, France
| | - Jean-Louis Laplanche
- Assistance publique-Hôpitaux de Paris (AP-HP), Service de Biochimie et Biologie Moléculaire, Hôpital Lariboisière; Université Paris Descartes, Paris, France
| | - Charles Duyckaerts
- Assistance publique-Hôpitaux de Paris (AP-HP), Laboratoire de Neuropathologie Raymond Escourolle, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.,Institut du cerveau et de la moelle épinière (ICM), Paris, France.,Sorbonne Universités, UPMCUniv Paris 06,UMRS 1127, Paris, France.,Institut National de la Santé et de la Recherche Médicale (Inserm), U1127, Paris, France
| | - Danielle Seilhean
- Assistance publique-Hôpitaux de Paris (AP-HP), Laboratoire de Neuropathologie Raymond Escourolle, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.,Institut du cerveau et de la moelle épinière (ICM), Paris, France.,Sorbonne Universités, UPMCUniv Paris 06,UMRS 1127, Paris, France.,Institut National de la Santé et de la Recherche Médicale (Inserm), U1127, Paris, France
| | - Stéphane Haïk
- Institut National de la Santé et de la Recherche Médicale (Inserm), U1127, Paris, France.,Assistance publique-Hôpitaux de Paris (AP-HP), Laboratoire de Neuropathologie Raymond Escourolle, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.,Assistance publique-Hôpitaux de Paris (AP-HP), Cellule nationale de référence des maladies de Creutzfeldt-Jakob, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.,Sorbonne Universités, UPMCUniv Paris 06,UMRS 1127, Paris, France.,Institut du cerveau et de la moelle épinière (ICM), Paris, France
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5
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Duyckaerts C, Sazdovitch V, Ando K, Seilhean D, Privat N, Yilmaz Z, Peckeu L, Amar E, Comoy E, Maceski A, Lehmann S, Brion JP, Brandel JP, Haïk S. Neuropathology of iatrogenic Creutzfeldt-Jakob disease and immunoassay of French cadaver-sourced growth hormone batches suggest possible transmission of tauopathy and long incubation periods for the transmission of Abeta pathology. Acta Neuropathol 2018; 135:201-212. [PMID: 29209767 DOI: 10.1007/s00401-017-1791-x] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 11/15/2017] [Accepted: 11/15/2017] [Indexed: 12/31/2022]
Abstract
Abeta deposits and tau pathology were investigated in 24 French patients that died from iatrogenic Creutzfeldt-Jakob disease after exposure to cadaver-derived human growth hormone (c-hGH) in the 1980s. Abeta deposits were found only in one case that had experienced one of the longest incubation periods. Three cases had also intracellular tau accumulation. The analysis of 24 batches of c-hGH, produced between 1974 and 1988, demonstrated for the first time the presence of Abeta and tau contaminants in c-hGH (in 17 and 6 batches, respectively). The incubation of prion disease was shorter in the French patients than the incubation times reported in two previously published British series. We interpreted the low incidence of Abeta in this French series as a consequence of the shorter incubation period observed in France, as compared to that observed in the United Kingdom. This concept suggested that a mean incubation period for the development of detectable Abeta deposits would be longer than 18 years after the first exposure. Moreover, we hypothesized that tau pathology might also be transmissible in humans.
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Affiliation(s)
- Charles Duyckaerts
- Inserm U1127, CNRS UMR 7225, UPMC Univ Paris VI UMR S 1127, Institut du Cerveau et de la Moelle épinière, Sorbonne Universités, 47 boulevard de l'Hôpital, 75013, Paris, France.
- Laboratoire de Neuropathologie R. Escourolle, Hôpital de la Pitié-Salpêtrière, AP-HP, Paris, France.
| | - Véronique Sazdovitch
- Inserm U1127, CNRS UMR 7225, UPMC Univ Paris VI UMR S 1127, Institut du Cerveau et de la Moelle épinière, Sorbonne Universités, 47 boulevard de l'Hôpital, 75013, Paris, France
- Laboratoire de Neuropathologie R. Escourolle, Hôpital de la Pitié-Salpêtrière, AP-HP, Paris, France
| | - Kunie Ando
- Laboratory of Histology, Neuroanatomy and Neuropathology, Faculty of Medicine, ULB Neuroscience Institute, Université Libre de Bruxelles, Brussels, Belgium
| | - Danielle Seilhean
- Inserm U1127, CNRS UMR 7225, UPMC Univ Paris VI UMR S 1127, Institut du Cerveau et de la Moelle épinière, Sorbonne Universités, 47 boulevard de l'Hôpital, 75013, Paris, France
- Laboratoire de Neuropathologie R. Escourolle, Hôpital de la Pitié-Salpêtrière, AP-HP, Paris, France
| | - Nicolas Privat
- Inserm U1127, CNRS UMR 7225, UPMC Univ Paris VI UMR S 1127, Institut du Cerveau et de la Moelle épinière, Sorbonne Universités, 47 boulevard de l'Hôpital, 75013, Paris, France
| | - Zehra Yilmaz
- Laboratory of Histology, Neuroanatomy and Neuropathology, Faculty of Medicine, ULB Neuroscience Institute, Université Libre de Bruxelles, Brussels, Belgium
| | - Laurène Peckeu
- Inserm U1127, CNRS UMR 7225, UPMC Univ Paris VI UMR S 1127, Institut du Cerveau et de la Moelle épinière, Sorbonne Universités, 47 boulevard de l'Hôpital, 75013, Paris, France
| | - Elodie Amar
- Service de Biochimie et Biologie Moléculaire, Hôpital Lariboisière, AP-HP, Paris, France
| | - Emmanuel Comoy
- Commissariat à l'Energie Atomique, DRF/iMETI/SEPIA, Fontenay-aux-Roses, France
| | - Aleksandra Maceski
- Laboratoire de Biochimie Protéomique Clinique, CHU de Montpellier, CRB, INSERM U1183, Université de Montpellier, Montpellier, France
| | - Sylvain Lehmann
- Laboratoire de Biochimie Protéomique Clinique, CHU de Montpellier, CRB, INSERM U1183, Université de Montpellier, Montpellier, France
| | - Jean-Pierre Brion
- Laboratory of Histology, Neuroanatomy and Neuropathology, Faculty of Medicine, ULB Neuroscience Institute, Université Libre de Bruxelles, Brussels, Belgium
| | - Jean-Philippe Brandel
- Inserm U1127, CNRS UMR 7225, UPMC Univ Paris VI UMR S 1127, Institut du Cerveau et de la Moelle épinière, Sorbonne Universités, 47 boulevard de l'Hôpital, 75013, Paris, France
- Hôpital de la Pitié-Salpêtrière, Cellule nationale de référence des MCJ, AP-HP, Paris, France
| | - Stéphane Haïk
- Inserm U1127, CNRS UMR 7225, UPMC Univ Paris VI UMR S 1127, Institut du Cerveau et de la Moelle épinière, Sorbonne Universités, 47 boulevard de l'Hôpital, 75013, Paris, France.
- Laboratoire de Neuropathologie R. Escourolle, Hôpital de la Pitié-Salpêtrière, AP-HP, Paris, France.
- Hôpital de la Pitié-Salpêtrière, Cellule nationale de référence des MCJ, AP-HP, Paris, France.
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6
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Privat N, Levavasseur E, Yildirim S, Hannaoui S, Brandel JP, Laplanche JL, Béringue V, Seilhean D, Haïk S. Region-specific protein misfolding cyclic amplification reproduces brain tropism of prion strains. J Biol Chem 2017; 292:16688-16696. [PMID: 28821618 DOI: 10.1074/jbc.m117.793646] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/25/2017] [Indexed: 11/06/2022] Open
Abstract
Human prion diseases such as Creutzfeldt-Jakob disease are transmissible brain proteinopathies, characterized by the accumulation of a misfolded isoform of the host cellular prion protein (PrP) in the brain. According to the prion model, prions are defined as proteinaceous infectious particles composed solely of this abnormal isoform of PrP (PrPSc). Even in the absence of genetic material, various prion strains can be propagated in experimental models. They can be distinguished by the pattern of disease they produce and especially by the localization of PrPSc deposits within the brain and the spongiform lesions they induce. The mechanisms involved in this strain-specific targeting of distinct brain regions still are a fundamental, unresolved question in prion research. To address this question, we exploited a prion conversion in vitro assay, protein misfolding cyclic amplification (PMCA), by using experimental scrapie and human prion strains as seeds and specific brain regions from mice and humans as substrates. We show here that region-specific PMCA in part reproduces the specific brain targeting observed in experimental, acquired, and sporadic Creutzfeldt-Jakob diseases. Furthermore, we provide evidence that, in addition to cellular prion protein, other region- and species-specific molecular factors influence the strain-dependent prion conversion process. This important step toward understanding prion strain propagation in the human brain may impact research on the molecular factors involved in protein misfolding and the development of ultrasensitive methods for diagnosing prion disease.
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Affiliation(s)
- Nicolas Privat
- From the INSERM, UMR S1127, 75013 Paris, France.,CNRS, UMR 7225, 75013 Paris, France.,UPMC, Institut du Cerveau et de la Moelle épinière (ICM), 75013 Paris, France
| | - Etienne Levavasseur
- From the INSERM, UMR S1127, 75013 Paris, France.,CNRS, UMR 7225, 75013 Paris, France.,UPMC, Institut du Cerveau et de la Moelle épinière (ICM), 75013 Paris, France
| | - Serfildan Yildirim
- From the INSERM, UMR S1127, 75013 Paris, France.,CNRS, UMR 7225, 75013 Paris, France.,UPMC, Institut du Cerveau et de la Moelle épinière (ICM), 75013 Paris, France
| | - Samia Hannaoui
- From the INSERM, UMR S1127, 75013 Paris, France.,CNRS, UMR 7225, 75013 Paris, France.,UPMC, Institut du Cerveau et de la Moelle épinière (ICM), 75013 Paris, France
| | - Jean-Philippe Brandel
- From the INSERM, UMR S1127, 75013 Paris, France.,CNRS, UMR 7225, 75013 Paris, France.,UPMC, Institut du Cerveau et de la Moelle épinière (ICM), 75013 Paris, France.,AP-HP, Cellule nationale de référence des MCJ, G.H. Pitié-Salpêtrière, 75013 Paris, France
| | - Jean-Louis Laplanche
- AP-HP, Service de Biochimie et Biologie Moléculaire, Hôpital Lariboisière, 75010 Paris, France
| | | | - Danielle Seilhean
- UPMC, Institut du Cerveau et de la Moelle épinière (ICM), 75013 Paris, France.,AP-HP, Laboratoire de Neuropathologie, G.H. Pitié-Salpêtrière, 75013 Paris, France
| | - Stéphane Haïk
- From the INSERM, UMR S1127, 75013 Paris, France, .,CNRS, UMR 7225, 75013 Paris, France.,UPMC, Institut du Cerveau et de la Moelle épinière (ICM), 75013 Paris, France.,AP-HP, Cellule nationale de référence des MCJ, G.H. Pitié-Salpêtrière, 75013 Paris, France.,AP-HP, Laboratoire de Neuropathologie, G.H. Pitié-Salpêtrière, 75013 Paris, France
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7
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Redaelli V, Bistaffa E, Zanusso G, Salzano G, Sacchetto L, Rossi M, De Luca CMG, Di Bari M, Portaleone SM, Agrimi U, Legname G, Roiter I, Forloni G, Tagliavini F, Moda F. Detection of prion seeding activity in the olfactory mucosa of patients with Fatal Familial Insomnia. Sci Rep 2017; 7:46269. [PMID: 28387370 PMCID: PMC5384244 DOI: 10.1038/srep46269] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 03/14/2017] [Indexed: 11/09/2022] Open
Abstract
Fatal Familial Insomnia (FFI) is a genetic prion disease caused by a point mutation in the prion protein gene (PRNP) characterized by prominent thalamic atrophy, diffuse astrogliosis and moderate deposition of PrPSc in the brain. Here, for the first time, we demonstrate that the olfactory mucosa (OM) of patients with FFI contains trace amount of PrPSc detectable by PMCA and RT-QuIC. Quantitative PMCA analysis estimated a PrPSc concentration of about 1 × 10-14 g/ml. In contrast, PrPSc was not detected in OM samples from healthy controls and patients affected by other neurodegenerative disorders, including Alzheimer's disease, Parkinson's disease and frontotemporal dementia. These results indicate that the detection limit of these assays is in the order of a single PrPSc oligomer/molecule with a specificity of 100%.
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Affiliation(s)
- Veronica Redaelli
- IRCCS Foundation Carlo Besta Neurological Institute, Department of Neurology 5 and Neuropathology, Milan, Italy
| | - Edoardo Bistaffa
- IRCCS Foundation Carlo Besta Neurological Institute, Department of Neurology 5 and Neuropathology, Milan, Italy.,Scuola Internazionale Superiore di Studi Avanzati (SISSA), Department of Neuroscience, Trieste, Italy
| | - Gianluigi Zanusso
- University of Verona, Department of Neurosciences, Biomedicine and Movement Sciences, Verona, Italy
| | - Giulia Salzano
- Scuola Internazionale Superiore di Studi Avanzati (SISSA), Department of Neuroscience, Trieste, Italy
| | - Luca Sacchetto
- University of Verona, Otolaryngology department, Verona, Italy
| | - Martina Rossi
- IRCCS Foundation Carlo Besta Neurological Institute, Department of Neurology 5 and Neuropathology, Milan, Italy.,Scuola Internazionale Superiore di Studi Avanzati (SISSA), Department of Neuroscience, Trieste, Italy
| | - Chiara Maria Giulia De Luca
- IRCCS Foundation Carlo Besta Neurological Institute, Department of Neurology 5 and Neuropathology, Milan, Italy
| | - Michele Di Bari
- Istituto Superiore di Sanità, Department of Veterinary Public Health and Food Safety, Rome, Italy
| | - Sara Maria Portaleone
- Otolaryngology Unit, San Paolo Hospital, Department of Health Sciences, University of Milan, Milan, Italy
| | - Umberto Agrimi
- Istituto Superiore di Sanità, Department of Veterinary Public Health and Food Safety, Rome, Italy
| | - Giuseppe Legname
- Scuola Internazionale Superiore di Studi Avanzati (SISSA), Department of Neuroscience, Trieste, Italy.,ELETTRA Laboratory, Sincrotrone Trieste S.C.p.A., Trieste, Italy
| | | | - Gianluigi Forloni
- IRCCS Foundation Istituto di Ricerche Farmacologiche Mario Negri, Department of Neuroscience, Milan, Italy
| | - Fabrizio Tagliavini
- IRCCS Foundation Carlo Besta Neurological Institute, Department of Neurology 5 and Neuropathology, Milan, Italy
| | - Fabio Moda
- IRCCS Foundation Carlo Besta Neurological Institute, Department of Neurology 5 and Neuropathology, Milan, Italy
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Levavasseur E, Biacabe AG, Comoy E, Culeux A, Grznarova K, Privat N, Simoneau S, Flan B, Sazdovitch V, Seilhean D, Baron T, Haïk S. Detection and partial discrimination of atypical and classical bovine spongiform encephalopathies in cattle and primates using real-time quaking-induced conversion assay. PLoS One 2017; 12:e0172428. [PMID: 28231300 PMCID: PMC5322914 DOI: 10.1371/journal.pone.0172428] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 02/03/2017] [Indexed: 01/24/2023] Open
Abstract
The transmission of classical bovine spongiform encephalopathy (C-BSE) through contaminated meat product consumption is responsible for variant Creutzfeldt-Jakob disease (vCJD) in humans. More recent and atypical forms of BSE (L-BSE and H-BSE) have been identified in cattle since the C-BSE epidemic. Their low incidence and advanced age of onset are compatible with a sporadic origin, as are most cases of Creutzfeldt-Jakob disease (CJD) in humans. Transmissions studies in primates and transgenic mice expressing a human prion protein (PrP) indicated that atypical forms of BSE may be associated with a higher zoonotic potential than classical BSE, and require particular attention for public health. Recently, methods designed to amplify misfolded forms of PrP have emerged as promising tools to detect prion strains and to study their diversity. Here, we validated real-time quaking-induced conversion assay for the discrimination of atypical and classical BSE strains using a large series of bovine samples encompassing all the atypical BSE cases detected by the French Centre of Reference during 10 years of exhaustive active surveillance. We obtained a 100% sensitivity and specificity for atypical BSE detection. In addition, the assay was able to discriminate atypical and classical BSE in non-human primates, and also sporadic CJD and vCJD in humans. The RT-QuIC assay appears as a practical means for a reliable detection of atypical BSE strains in a homologous or heterologous PrP context.
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Affiliation(s)
- Etienne Levavasseur
- Inserm U1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris VI UMR S 1127, Institut du Cerveau et de la Moelle épinière, Paris, France
| | - Anne-Gaëlle Biacabe
- Agence nationale de sécurité sanitaire de l’alimentation, de l’environnement et du travail (ANSES), Unité maladies neuro-dégénératives, Lyon, France
| | - Emmanuel Comoy
- Commissariat à l’Énergie Atomique (CEA), Institut des maladies émergentes et des thérapies nouvelles (IMETI), Service d’étude des prions et des infections atypiques (SEPIA), Fontenay-aux-Roses, France
| | - Audrey Culeux
- Inserm U1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris VI UMR S 1127, Institut du Cerveau et de la Moelle épinière, Paris, France
| | - Katarina Grznarova
- Inserm U1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris VI UMR S 1127, Institut du Cerveau et de la Moelle épinière, Paris, France
| | - Nicolas Privat
- Inserm U1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris VI UMR S 1127, Institut du Cerveau et de la Moelle épinière, Paris, France
| | | | | | | | - Danielle Seilhean
- AP-HP, Hôpital de la Pitié-Salpêtrière, Neuropathologie, Paris, France
| | - Thierry Baron
- Agence nationale de sécurité sanitaire de l’alimentation, de l’environnement et du travail (ANSES), Unité maladies neuro-dégénératives, Lyon, France
| | - Stéphane Haïk
- Inserm U1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris VI UMR S 1127, Institut du Cerveau et de la Moelle épinière, Paris, France
- AP-HP, Hôpital de la Pitié-Salpêtrière, Cellule nationale de référence des MCJ, Paris, France
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Haïk S, Brandel JP. Infectious prion diseases in humans: cannibalism, iatrogenicity and zoonoses. INFECTION GENETICS AND EVOLUTION 2014; 26:303-12. [PMID: 24956437 DOI: 10.1016/j.meegid.2014.06.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 06/10/2014] [Accepted: 06/13/2014] [Indexed: 12/24/2022]
Abstract
In contrast with other neurodegenerative disorders associated to protein misfolding, human prion diseases include infectious forms (also called transmitted forms) such as kuru, iatrogenic Creutzfeldt-Jakob disease and variant Creutzfeldt-Jakob disease. The transmissible agent is thought to be solely composed of the abnormal isoform (PrP(Sc)) of the host-encoded prion protein that accumulated in the central nervous system of affected individuals. Compared to its normal counterpart, PrP(Sc) is β-sheet enriched and aggregated and its propagation is based on an autocatalytic conversion process. Increasing evidence supports the view that conformational variations of PrP(Sc) encoded the biological properties of the various prion strains that have been isolated by transmission studies in experimental models. Infectious forms of human prion diseases played a pivotal role in the emergence of the prion concept and in the characterization of the very unconventional properties of prions. They provide a unique model to understand how prion strains are selected and propagate in humans. Here, we review and discuss how genetic factors interplay with strain properties and route of transmission to influence disease susceptibility, incubation period and phenotypic expression in the light of the kuru epidemics due to ritual endocannibalism, the various series iatrogenic diseases secondary to extractive growth hormone treatment or dura mater graft and the epidemics of variant Creutzfeldt-Jakob disease linked to dietary exposure to the agent of bovine spongiform encephalopathy.
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Affiliation(s)
- Stéphane Haïk
- Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Inserm, U 1127, CNRS UMR 7225, ICM, F-75013 Paris, France; AP-HP, Groupe hospitalier Pitié-Salpêtrière, Cellule Nationale de Référence des Maladies de Creutzfeldt-Jakob, F-75013 Paris, France; Centre National de Référence des Agents Transmissibles Non Conventionnels, F-75013 Paris, France.
| | - Jean-Philippe Brandel
- Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Inserm, U 1127, CNRS UMR 7225, ICM, F-75013 Paris, France; AP-HP, Groupe hospitalier Pitié-Salpêtrière, Cellule Nationale de Référence des Maladies de Creutzfeldt-Jakob, F-75013 Paris, France; Centre National de Référence des Agents Transmissibles Non Conventionnels, F-75013 Paris, France
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10
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Haïk S, Marcon G, Mallet A, Tettamanti M, Welaratne A, Giaccone G, Azimi S, Pietrini V, Fabreguettes JR, Imperiale D, Cesaro P, Buffa C, Aucan C, Lucca U, Peckeu L, Suardi S, Tranchant C, Zerr I, Houillier C, Redaelli V, Vespignani H, Campanella A, Sellal F, Krasnianski A, Seilhean D, Heinemann U, Sedel F, Canovi M, Gobbi M, Di Fede G, Laplanche JL, Pocchiari M, Salmona M, Forloni G, Brandel JP, Tagliavini F. Doxycycline in Creutzfeldt-Jakob disease: a phase 2, randomised, double-blind, placebo-controlled trial. Lancet Neurol 2014; 13:150-8. [DOI: 10.1016/s1474-4422(13)70307-7] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Priemer G, Balkema-Buschmann A, Hills B, Groschup MH. Biochemical Characteristics and PrP(Sc) Distribution Pattern in the Brains of Cattle Experimentally Challenged with H-type and L-type Atypical BSE. PLoS One 2013; 8:e67599. [PMID: 23805320 PMCID: PMC3689710 DOI: 10.1371/journal.pone.0067599] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 05/20/2013] [Indexed: 11/28/2022] Open
Abstract
Besides the classical form of bovine spongiform encephalopathy (BSE) that has been known for almost three decades, two atypical forms designated H-type and L-type BSE have recently been described. While the main diagnostic feature of these forms is the altered biochemical profile of the accumulated PrPSc, it was also observed in the initial analysis that L-type BSE displays a distribution pattern of the pathological prion protein (PrPSc), which clearly differs from that observed in classical BSE (C-type). Most importantly, the obex region in the brainstem is not the region with the highest PrPSc concentrations, but PrPSc is spread more evenly throughout the entire brain. A similar distribution pattern has been revealed for H-type BSE by rapid test analysis. Based on these findings, we performed a more detailed Western blot study of the anatomical PrPSc distribution pattern and the biochemical characteristics (molecular mass, glycoprofile as well as PK sensitivity) in ten different anatomical locations of the brain from cattle experimentally challenged with H- or L-type BSE, as compared to cattle challenged with C-type BSE. Results of this study revealed distinct differences in the PrPSc deposition patterns between all three BSE forms, while the biochemical characteristics remained stable for each BSE type among all analysed brain areas.
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Affiliation(s)
- Grit Priemer
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Greifswald - Insel Riems, Germany
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12
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Kuczius T, Groschup MH. Regional phenotypes of cellular prion proteins in human brains identified by differential detergent solubility. Brain Res 2013; 1507:19-27. [DOI: 10.1016/j.brainres.2013.02.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 02/04/2013] [Accepted: 02/19/2013] [Indexed: 10/27/2022]
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13
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Prion propagation and toxicity occur in vitro with two-phase kinetics specific to strain and neuronal type. J Virol 2012; 87:2535-48. [PMID: 23255799 DOI: 10.1128/jvi.03082-12] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Prion diseases, or transmissible spongiform encephalopathies (TSEs), are fatal neurodegenerative disorders that occur in humans and animals. The neuropathological hallmarks of TSEs are spongiosis, glial proliferation, and neuronal loss. The only known specific molecular marker of TSEs is the abnormal isoform (PrP(Sc)) of the host-encoded prion protein (PrP(C)), which accumulates in the brain of infected subjects and forms infectious prion particles. Although this transmissible agent lacks a specific nucleic acid component, several prion strains have been isolated. Prion strains are characterized by differences in disease outcome, PrP(Sc) distribution patterns, and brain lesion profiles at the terminal stage of the disease. The molecular factors and cellular mechanisms involved in strain-specific neuronal tropism and toxicity remain largely unknown. Currently, no cellular model exists to facilitate in vitro studies of these processes. A few cultured cell lines that maintain persistent scrapie infections have been developed, but only two of them have shown the cytotoxic effects associated with prion propagation. In this study, we have developed primary neuronal cultures to assess in vitro neuronal tropism and toxicity of different prion strains (scrapie strains 139A, ME7, and 22L). We have tested primary neuronal cultures enriched in cerebellar granular, striatal, or cortical neurons. Our results showed that (i) a strain-specific neuronal tropism operated in vitro; (ii) the cytotoxic effect varied among strains and neuronal cell types; (iii) prion propagation and toxicity occurred in two kinetic phases, a replicative phase followed by a toxic phase; and (iv) neurotoxicity peaked when abnormal PrP accumulation reached a plateau.
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Peoc'h K, Levavasseur E, Delmont E, De Simone A, Laffont-Proust I, Privat N, Chebaro Y, Chapuis C, Bedoucha P, Brandel JP, Laquerriere A, Kemeny JL, Hauw JJ, Borg M, Rezaei H, Derreumaux P, Laplanche JL, Haïk S. Substitutions at residue 211 in the prion protein drive a switch between CJD and GSS syndrome, a new mechanism governing inherited neurodegenerative disorders. Hum Mol Genet 2012; 21:5417-28. [DOI: 10.1093/hmg/dds377] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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15
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Head MW, Ironside JW. The contribution of different prion protein types and host polymorphisms to clinicopathological variations in Creutzfeldt-Jakob disease. Rev Med Virol 2012; 22:214-29. [DOI: 10.1002/rmv.725] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Revised: 10/21/2011] [Accepted: 10/21/2011] [Indexed: 01/22/2023]
Affiliation(s)
- Mark W. Head
- The National CJD Research & Surveillance Unit, School of Molecular & Clinical Medicine; University of Edinburgh; Edinburgh UK
| | - James W. Ironside
- The National CJD Research & Surveillance Unit, School of Molecular & Clinical Medicine; University of Edinburgh; Edinburgh UK
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16
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Faucheux BA, Morain E, Diouron V, Brandel JP, Salomon D, Sazdovitch V, Privat N, Laplanche JL, Hauw JJ, Haïk S. Quantification of surviving cerebellar granule neurones and abnormal prion protein (PrPSc) deposition in sporadic Creutzfeldt-Jakob disease supports a pathogenic role for small PrPSc deposits common to the various molecular subtypes. Neuropathol Appl Neurobiol 2011; 37:500-12. [PMID: 21450052 DOI: 10.1111/j.1365-2990.2011.01179.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AIMS Neuronal death is a major neuropathological hallmark in prion diseases. The association between the accumulation of the disease-related prion protein (PrP(Sc) ) and neuronal loss varies within the wide spectrum of prion diseases and their experimental models. In this study, we investigated the relationships between neuronal loss and PrP(Sc) deposition in the cerebellum from cases of the six subtypes of sporadic Creutzfeldt-Jakob disease (sCJD; n=100) that can be determined according to the M129V polymorphism of the human prion protein gene (PRNP) and PrP(Sc) molecular types. METHODS The numerical density of neurones was estimated with a computer-assisted image analysis system and the accumulation of PrP(Sc) deposits was scored. RESULTS The scores of PrP(Sc) immunoreactive deposits of the punctate type (synaptic type) were correlated with neurone counts - the higher the score the higher the neuronal loss - in all sCJD subtypes. Large 5- to 50-µm-wide deposits (focal type) were found in sCJD-MV2 and sCJD-VV2 subtypes, and occasionally in a few cases of the other studied groups. By contrast, the highest scores for 5- to 50-µm-wide deposits observed in sCJD-MV2 subtype were not associated with higher neuronal loss. In addition, these scores were inversely correlated with neuronal counts in the sCJD-VV2 subtype. CONCLUSIONS These results support a putative pathogenic role for small PrP(Sc) deposits common to the various sCJD subtypes. Furthermore, the observation of a lower loss of neurones associated with PrP(Sc) type-2 large deposits is consistent with a possible 'protective' role of aggregated deposits in both sCJD-MV2 and sCJD-VV2 subtypes.
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Affiliation(s)
- B A Faucheux
- Assistance Publique - Hôpitaux de Paris (AP-HP), Laboratoire de Neuropathologie, Hôpital de la Salpêtrière, 47 boulevard de l'Hôpital Centre de Recherche de l'Institut du Cerveau et de la Moelle, INSERM UMRS975, CNRS UMR7225, Paris, France.
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17
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Haïk S, Brandel JP. Biochemical and strain properties of CJD prions: complexity versus simplicity. J Neurochem 2011; 119:251-61. [PMID: 21790605 DOI: 10.1111/j.1471-4159.2011.07399.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Prions, the agents responsible for transmissible spongiform encephalopathies, are infectious proteins consisting primarily of scrapie prion protein (PrP(Sc)), a misfolded, β-sheet enriched and aggregated form of the host-encoded cellular prion protein (PrP(C)). Their propagation is based on an autocatalytic PrP conversion process. Despite the lack of a nucleic acid genome, different prion strains have been isolated from animal diseases. Increasing evidence supports the view that strain-specific properties may be enciphered within conformational variations of PrP(Sc). In humans, sporadic Creutzfeldt-Jakob disease (sCJD) is the most frequent form of prion diseases and has demonstrated a wide phenotypic and molecular spectrum. In contrast, variant Creutzfeldt-Jakob disease (vCJD), which results from oral exposure to the agent of bovine spongiform encephalopathy, is a highly stereotyped disease, that, until now, has only occurred in patients who are methionine homozygous at codon 129 of the PrP gene. Recent research has provided consistent evidence of strain diversity in sCJD and also, unexpectedly enough, in vCJD. Here, we discuss the puzzling biochemical/pathological diversity of human prion disorders and the relationship of that diversity to the biological properties of the agent as demonstrated by strain typing in experimental models.
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Affiliation(s)
- Stéphane Haïk
- Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975, Equipe "Alzheimer's and Prion Diseases", Paris, France.
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18
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Abstract
Infection by prions involves conversion of a host-encoded cell surface protein (PrP(C)) to a disease-related isoform (PrP(Sc)). PrP(C) carries two glycosylation sites variably occupied by complex N-glycans, which have been suggested by previous studies to influence the susceptibility to these diseases and to determine characteristics of prion strains. We used the Rov cell system, which is susceptible to sheep prions, to generate a series of PrP(C) glycosylation mutants with mutations at one or both attachment sites. We examined their subcellular trafficking and ability to convert into PrP(Sc) and to sustain stable prion propagation in the absence of wild-type PrP. The susceptibility to infection of mutants monoglycosylated at either site differed dramatically depending on the amino acid substitution. Aglycosylated double mutants showed overaccumulation in the Golgi compartment and failed to be infected. Introduction of an ectopic glycosylation site near the N terminus fully restored cell surface expression of PrP but not convertibility into PrP(Sc), while PrP(C) with three glycosylation sites conferred cell permissiveness to infection similarly to the wild type. In contrast, predominantly aglycosylated molecules with nonmutated N-glycosylation sequons, produced in cells expressing glycosylphosphatidylinositol-anchorless PrP(C), were able to form infectious PrP(Sc). Together our findings suggest that glycosylation is important for efficient trafficking of anchored PrP to the cell surface and sustained prion propagation. However, properly trafficked glycosylation mutants were not necessarily prone to conversion, thus making it difficult in such studies to discern whether the amino acid changes or glycan chain removal most influences the permissiveness to prion infection.
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19
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Parchi P, Strammiello R, Giese A, Kretzschmar H. Phenotypic variability of sporadic human prion disease and its molecular basis: past, present, and future. Acta Neuropathol 2011; 121:91-112. [PMID: 21107851 DOI: 10.1007/s00401-010-0779-6] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Revised: 11/05/2010] [Accepted: 11/06/2010] [Indexed: 11/28/2022]
Abstract
Human prion diseases are rare neurodegenerative disorders related to prion protein misfolding that can occur as sporadic, familial or acquired forms. In comparison to other more common neurodegenerative disorders, prion diseases show a wider range of phenotypic variation and largely transmit to experimental animals, a feature that led to the isolation and characterization of different strains of the transmissible agent or prion with distinct biological properties. Biochemically distinct PrP(Sc) types have been demonstrated which differ in their size after proteinase cleavage, glycosylation pattern, and possibly other features related to their conformation. These PrP(Sc) types, possibly enciphering the prion strains, together with the naturally occurring polymorphism at codon 129 in the prion protein gene have a major influence on the disease phenotype. In the sporadic form, the most common but perhaps least understood form of human prion disease, there are at least six major combinations of codon 129 genotype and prion protein isotype, which are significantly related to distinctive clinical-pathological subgroups of the disease. In this review, we provide an update on the current knowledge and classification of the disease subtypes of the sporadic human prion diseases as defined by molecular features and pathological changes. Furthermore, we discuss the molecular basis of phenotypic variability taking into account the results of recent transmission studies that shed light on the extent of prion strain variation in humans.
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Affiliation(s)
- Piero Parchi
- Dipartimento di Scienze Neurologiche, Università di Bologna, Bologna, Italy
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20
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Kuczius T, Wohlers J, Karch H, Groschup MH. Subtyping of human cellular prion proteins and their differential solubility. Exp Neurol 2010; 227:188-94. [PMID: 21070768 DOI: 10.1016/j.expneurol.2010.10.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 09/22/2010] [Accepted: 10/26/2010] [Indexed: 02/07/2023]
Abstract
A human form of a prion disorder is the Creutzfeldt-Jakob disease. A hallmark of the disease is the accumulation of misfolded prion proteins (PrP(Sc)), which exist as heterogeneous subtypes. PrP(Sc) is formed by protein conversion from the host-encoded cellular prion (PrP(C)), which is expressed and modified to various isoforms. Little is known about variation in PrP(C); however, it is assumed that PrP(C) types play important roles in the formation of PrP(Sc). In this study, we separated distinct human PrP(C) subtypes on the basis of differential protein solubilities in detergent solutions. Single and sequential application of the detergents Triton X-100, octyl-glucopyranoside and CHAPS facilitated high solubility of glycosylated PrP(C) isoforms, whereas high proportions of nonglycosylated PrP(C) remained non-soluble. Most proteins became highly soluble with laurylsarcosine and sodium dodecyl sulphate. Our findings demonstrate that the solubility characteristics of heterogeneous PrP(C) overlap in human brains and convey distinct solubility subtypes. Differentiation by solubility experiments can therefore provide valuable information on prion protein composition, facilitate the separation of subtypes, and offer new prospects for conversion specificity of distinct isoforms.
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Affiliation(s)
- Thorsten Kuczius
- Institute for Hygiene, Westfälische Wilhelms-University, University Hospital Münster, Robert Koch-Strasse 41, 48149 Münster, Germany.
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21
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Choi YP, Gröner A, Ironside JW, Head MW. Correlation of polydispersed prion protein and characteristic pathology in the thalamus in variant Creutzfeldt-Jakob disease: implication of small oligomeric species. Brain Pathol 2010; 21:298-307. [PMID: 21029243 DOI: 10.1111/j.1750-3639.2010.00446.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The vacuolation, neuronal loss and gliosis that characterize human prion disease pathology are accompanied by the accumulation of an aggregated, insoluble and protease-resistant form (termed PrP(Sc)) of the host-encoded normal cellular prion protein (PrP(C)). In variant Creutzfeldt-Jakob disease the frontal cortex and cerebellum exhibit intense vacuolation and the accumulation of PrP(Sc) in the form of amyloid plaques and plaque-like structures. In contrast the posterior thalamus is characterized by intense gliosis and neuronal loss, but PrP(Sc) plaques are rare and vacuolation is patchy. We have used sucrose density gradient centrifugation coupled with conformation dependent immunoassay to examine the biochemical properties of the PrP(Sc) that accumulates in these different brain regions. The results show a greater degree of PrP(Sc) polydisperal in thalamus compared with frontal cortex or cerebellum, including a subpopulation PrP(Sc) molecules in the thalamus that have sedimentation properties resembling those of PrP(C). Much effort has focused on identifying aspects of PrP(Sc) biochemistry that distinguish between different forms of human prion disease and contribute to differential diagnosis. Here we show that PrP(Sc) sedimentation properties, which can depend on aggregation state, correlate with, and may underlie the distinct neurodegenerative processes occurring in different regions of the variant Creutzfeldt-Jakob disease brain.
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Affiliation(s)
- Young Pyo Choi
- National Creutzfeldt-Jakob Disease Surveillance Unit, School of Molecular and Clinical Medicine (Pathology), University of Edinburgh, Edinburgh, UK
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22
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Giles K, Glidden DV, Patel S, Korth C, Groth D, Lemus A, DeArmond SJ, Prusiner SB. Human prion strain selection in transgenic mice. Ann Neurol 2010; 68:151-61. [PMID: 20695008 PMCID: PMC2935907 DOI: 10.1002/ana.22104] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Transgenic (Tg) mice expressing chimeras of mouse and human prion proteins (PrPs) have shorter incubation periods for Creutzfeldt-Jakob disease (CJD) prions than mice expressing full-length human PrP. Increasing the sequence similarity of the chimeric PrP to mouse PrP, by reverting human residues to mouse, resulted in a Tg line, denoted Tg22372, which was susceptible to sporadic (s) CJD prions in approximately 110 days. METHODS Mice expressing chimeric mouse/human PrP transgenes were produced. The mice were inoculated intracerebrally with extracts prepared from the brains of patients who died of CJD. Onset of neurological dysfunction marked the end of the incubation time. After sacrifice of the Tg mice, their brains were analyzed for PrP(Sc) and neuropathological changes. RESULTS Reversion of 1 additional residue (M111V) resulted in a new Tg line, termed Tg1014, susceptible to sCJD prions in approximately 75 days. Tg1014 mice also have shorter incubation periods for variant (v) CJD prions, providing a more tractable model for studying this prion strain. Transmission of vCJD prions to Tg1014 mice resulted in 2 different strains, determined by neuropathology and biochemical analysis, which correlated with the length of the incubation time. One strain had the biochemical, neuropathological, and transmission characteristics, including longer incubation times, of the inoculated vCJD strain; the second strain produced a phenotype resembling that of sCJD prions including relatively shorter incubation periods. Mice with intermediate incubation periods for vCJD prions had a mixture of the 2 strains. Both strains were serially transmitted in Tg1014 mice, which led to further reduction in incubation periods. Conversion of vCJD-like to sCJD-like strains was favored in Tg1014 mice more than in the Tg22372 line. The single amino acid difference therefore appears to offer selective pressure for propagation of the sCJD-like strain. INTERPRETATION These 2 Tg mouse lines provide relatively rapid models to study human prion diseases as well as the evolution of human prion strains.
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Affiliation(s)
- Kurt Giles
- Institute for Neurodegenerative Diseases, University of California San Francisco, CA 94143, U.S.A
- Department of Neurology, University of California San Francisco, CA 94143, U.S.A
| | - David V. Glidden
- Department of Epidemiology and Biostatistics, University of California San Francisco, CA 94143, U.S.A
| | - Smita Patel
- Institute for Neurodegenerative Diseases, University of California San Francisco, CA 94143, U.S.A
| | - Carsten Korth
- Institute for Neurodegenerative Diseases, University of California San Francisco, CA 94143, U.S.A
| | - Darlene Groth
- Institute for Neurodegenerative Diseases, University of California San Francisco, CA 94143, U.S.A
| | - Azucena Lemus
- Department of Pathology, University of California San Francisco, CA 94143, U.S.A
| | - Stephen J. DeArmond
- Institute for Neurodegenerative Diseases, University of California San Francisco, CA 94143, U.S.A
- Department of Pathology, University of California San Francisco, CA 94143, U.S.A
| | - Stanley B. Prusiner
- Institute for Neurodegenerative Diseases, University of California San Francisco, CA 94143, U.S.A
- Department of Neurology, University of California San Francisco, CA 94143, U.S.A
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Neuron dysfunction is induced by prion protein with an insertional mutation via a Fyn kinase and reversed by sirtuin activation in Caenorhabditis elegans. J Neurosci 2010; 30:5394-403. [PMID: 20392961 DOI: 10.1523/jneurosci.5831-09.2010] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Although prion propagation is well understood, the signaling pathways activated by neurotoxic forms of prion protein (PrP) and those able to mitigate pathological phenotypes remain largely unknown. Here, we identify src-2, a Fyn-related kinase, as a gene required for human PrP with an insertional mutation to be neurotoxic in Caenorhabditis elegans, and the longevity modulator sir-2.1/SIRT1, a sirtuin deacetylase, as a modifier of prion neurotoxicity. The expression of octarepeat-expanded PrP in C. elegans mechanosensory neurons led to a progressive loss of response to touch without causing cell death, whereas wild-type PrP expression did not alter behavior. Transgenic PrP molecules showed expression at the plasma membrane, with protein clusters, partial resistance to proteinase K (PK), and protein insolubility detected for mutant PrP. Loss of function (LOF) of src-2 greatly reduced mutant PrP neurotoxicity without reducing PK-resistant PrP levels. Increased sir-2.1 dosage reversed mutant PrP neurotoxicity, whereas sir-2.1 LOF showed aggravation, and these effects did not alter PK-resistant PrP. Resveratrol, a polyphenol known to act through sirtuins for neuroprotection, reversed mutant PrP neurotoxicity in a sir-2.1-dependent manner. Additionally, resveratrol reversed cell death caused by mutant PrP in cerebellar granule neurons from prnp-null mice. These results suggest that Fyn mediates mutant PrP neurotoxicity in addition to its role in cellular PrP signaling and reveal that sirtuin activation mitigates these neurotoxic effects. Sirtuin activators may thus have therapeutic potential to protect from prion neurotoxicity and its effects on intracellular signaling.
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Kuczius T, Karch H, Groschup MH. Differential solubility of prions is associated in manifold phenotypes. Mol Cell Neurosci 2009; 42:226-33. [PMID: 19607920 DOI: 10.1016/j.mcn.2009.07.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2009] [Revised: 06/12/2009] [Accepted: 07/02/2009] [Indexed: 12/12/2022] Open
Abstract
The main feature of prion diseases is the accumulation of infectious proteins (PrP(Sc)). Since PrP(Sc) results from conversion of cellular prion proteins (PrP(C)), differential expressed PrP(C) types may play an important role in the formation and conversion efficiency to specific PrP(Sc) forms. However, little is known about the PrP(C) expression, regulation and differentiation. Here, we demonstrate a new type of differentiation of overlapping PrP(C) isoforms in brain homogenates using differential SDS solubility. Low and highly soluble PrP(C) were detected along with various types of protein which are present in the brain of non-infected humans, sheep and cattle. Our findings provide evidence for the existence of several overlapping PrP(C) proteins exhibiting distinct glycotypes. The selection of defined PrP(C) types offers new possibilities for identifying highly efficient converting proteins and provides the potential for disease control.
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Affiliation(s)
- Thorsten Kuczius
- Institute for Hygiene, Westfälische Wilhelms-University Münster and University Hospital Münster, Robert Koch-Strasse 41, 48149 Münster, Germany.
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Tester S, Juillerat V, Doherr MG, Haase B, Polak M, Ehrensperger F, Leeb T, Zurbriggen A, Seuberlich T. Biochemical typing of pathological prion protein in aging cattle with BSE. Virol J 2009; 6:64. [PMID: 19470160 PMCID: PMC2693104 DOI: 10.1186/1743-422x-6-64] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2009] [Accepted: 05/26/2009] [Indexed: 11/20/2022] Open
Abstract
Background The broad enforcement of active surveillance for bovine spongiform encephalopathy (BSE) in 2000 led to the discovery of previously unnoticed, atypical BSE phenotypes in aged cattle that differed from classical BSE (C-type) in biochemical properties of the pathological prion protein. Depending on the molecular mass and the degree of glycosylation of its proteinase K resistant core fragment (PrPres), mainly determined in samples derived from the medulla oblongata, these atypical cases are currently classified into low (L)-type or high (H)-type BSE. In the present study we address the question to what extent such atypical BSE cases are part of the BSE epidemic in Switzerland. Results To this end we analyzed the biochemical PrPres type by Western blot in a total of 33 BSE cases in cattle with a minimum age of eight years, targeting up to ten different brain regions. Our work confirmed H-type BSE in a zebu but classified all other cases as C-type BSE; indicating a very low incidence of H- and L-type BSE in Switzerland. It was documented for the first time that the biochemical PrPres type was consistent across different brain regions of aging animals with C-type and H-type BSE, i.e. independent of the neuroanatomical structure investigated. Conclusion Taken together this study provides further characteristics of the BSE epidemic in Switzerland and generates new baseline data for the definition of C- and H-type BSE phenotypes, thereby underpinning the notion that they indeed represent distinct prion disease entities.
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Affiliation(s)
- Seraina Tester
- NeuroCenter, Reference Laboratory for TSE in animals, Department of Clinical Research and Veterinary Public Health, Vetsuisse Faculty, University of Berne, Switzerland.
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Xanthopoulos K, Polymenidou M, Bellworthy SJ, Benestad SL, Sklaviadis T. Species and strain glycosylation patterns of PrPSc. PLoS One 2009; 4:e5633. [PMID: 19461968 PMCID: PMC2680983 DOI: 10.1371/journal.pone.0005633] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2008] [Accepted: 04/01/2009] [Indexed: 11/30/2022] Open
Abstract
Background A key event in transmissible spongiform encephalopathies (TSEs) is the conversion of the soluble, protease-sensitive glycosylated prion protein (PrPC) to an abnormally structured, aggregated and partially protease-resistant isoform (PrPSc). Both PrP isoforms bear two potential glycosylation sites and thus in a typical western blot with an anti-PrP antibody three distinct bands appear, corresponding to the di-, mono- or unglycosylated forms of the protein. The relative intensity and electrophoretic mobility of the three bands are characteristic of each TSE strain and have been used to discriminate between them. Methodology/Principal Findings In the present study we used lectin-based western blotting to evaluate possible variations in composition within sugar chains carried by PrPSc purified from subjects affected with different TSEs. Our findings indicate that in addition to the already well-documented differences in electrophoretic mobility and amounts of the glycosylated PrPSc forms, TSE strains also vary in the abundance of specific N-linked sugars of the PrPSc protein. Conclusions/Significance These results imply that PrP glycosylation might fine-tune the conversion of PrPC to PrPSc and could play an accessory role in the appearance of some of the characteristic features of TSE strains. The differences in sugar composition could also be used as an additional tool for discrimination between the various TSEs.
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Affiliation(s)
- Konstantinos Xanthopoulos
- Laboratory of Pharmacology, Department of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Brandel JP, Heath CA, Head MW, Levavasseur E, Knight R, Laplanche JL, Langeveld JP, Ironside JW, Hauw JJ, Mackenzie J, Alpérovitch A, Will RG, Haïk S. Variant Creutzfeldt-Jakob disease in France and the United Kingdom: Evidence for the same agent strain. Ann Neurol 2009; 65:249-56. [PMID: 19334063 DOI: 10.1002/ana.21583] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Variant Creutzfeldt-Jakob disease (vCJD) was first reported in the United Kingdom in 1996. Since then, the majority of cases have been observed in the United Kingdom where there was a major epidemic of bovine spongiform encephalopathy. France was the second country affected. To address the hypothesis of the involvement of a common strain of agent, we have compared clinical, neuropathological, and biochemical data on vCJD patients from both countries. METHODS In France and the United Kingdom, epidemiological and clinical data were obtained from analysis of medical records and direct interview of the family of the patients using the same standardized questionnaire in both countries. When brain material was available, we performed with similar methods a comparative study of brain lesions and PrP(res) glycoform ratios in both vCJD populations. RESULTS Clinical data, genetic background, neuropathological finding, and biochemical findings in the 185 patients observed in France (n = 23) and the United Kingdom (n = 162) were similar except for age at death. Currently, blood transfusion is a risk factor identified only in the United Kingdom. INTERPRETATION The close similarity between the cases of vCJD in France and the United Kingdom supports the hypothesis that a common strain of infectious agent is involved in both countries. The 5-year delay in the peak that we observed in France compared with the United Kingdom fits well with the increase in the importation of beef products to France from the United Kingdom between 1985 and 1995.
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Affiliation(s)
- Jean-Philippe Brandel
- Institut National de la Santé et de la Recherche Médicale, Equipe Avenir Human Prion Diseases, Paris, F-75013, France.
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Abstract
In this study, we tested the hypothesis that the glycosylation of the pathogenic isoform of the prion protein (PrP(Sc)) might encode the selective neurotropism of prion strains. We prepared unglycosylated cellular prion protein (PrP(C)) substrate molecules from normal mouse brain by treatment with PNGase F and used reconstituted serial protein cyclic misfolding amplification reactions to produce RML and 301C mouse prions containing unglycosylated PrP(Sc) molecules. Both RML- and 301C-derived prions containing unglycosylated PrP(Sc) molecules were infectious to wild-type mice, and neuropathological analysis showed that mice inoculated with these samples maintained strain-specific patterns of PrP(Sc) deposition and neuronal vacuolation. These results show that PrP(Sc) glycosylation is not necessary for strain-dependent prion neurotropism.
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