Understanding the key features of the spontaneous formation of bona fide prions through a novel methodology that enables their swift and consistent generation

Abstract Among transmissible spongiform encephalopathies or prion diseases affecting humans, sporadic forms such as sporadic Creutzfeldt–Jakob disease are the vast majority. Unlike genetic or acquired forms of the disease, these idiopathic forms occur seemingly due to a random event of spontaneous m...

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Main Authors: Hasier Eraña, Carlos M. Díaz-Domínguez, Jorge M. Charco, Enric Vidal, Ezequiel González-Miranda, Miguel A. Pérez-Castro, Patricia Piñeiro, Rafael López-Moreno, Cristina Sampedro-Torres-Quevedo, Leire Fernández-Veiga, Juan Tasis-Galarza, Nuria L. Lorenzo, Aileen Santini-Santiago, Melisa Lázaro, Sandra García-Martínez, Nuno Gonçalves-Anjo, Maitena San-Juan-Ansoleaga, Josu Galarza-Ahumada, Eva Fernández-Muñoz, Samanta Giler, Mikel Valle, Glenn C. Telling, Mariví Geijó, Jesús R. Requena, Joaquín Castilla
Format: Article
Language:English
Published: BMC 2023-09-01
Series:Acta Neuropathologica Communications
Subjects:
Online Access:https://doi.org/10.1186/s40478-023-01640-8
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author Hasier Eraña
Carlos M. Díaz-Domínguez
Jorge M. Charco
Enric Vidal
Ezequiel González-Miranda
Miguel A. Pérez-Castro
Patricia Piñeiro
Rafael López-Moreno
Cristina Sampedro-Torres-Quevedo
Leire Fernández-Veiga
Juan Tasis-Galarza
Nuria L. Lorenzo
Aileen Santini-Santiago
Melisa Lázaro
Sandra García-Martínez
Nuno Gonçalves-Anjo
Maitena San-Juan-Ansoleaga
Josu Galarza-Ahumada
Eva Fernández-Muñoz
Samanta Giler
Mikel Valle
Glenn C. Telling
Mariví Geijó
Jesús R. Requena
Joaquín Castilla
author_facet Hasier Eraña
Carlos M. Díaz-Domínguez
Jorge M. Charco
Enric Vidal
Ezequiel González-Miranda
Miguel A. Pérez-Castro
Patricia Piñeiro
Rafael López-Moreno
Cristina Sampedro-Torres-Quevedo
Leire Fernández-Veiga
Juan Tasis-Galarza
Nuria L. Lorenzo
Aileen Santini-Santiago
Melisa Lázaro
Sandra García-Martínez
Nuno Gonçalves-Anjo
Maitena San-Juan-Ansoleaga
Josu Galarza-Ahumada
Eva Fernández-Muñoz
Samanta Giler
Mikel Valle
Glenn C. Telling
Mariví Geijó
Jesús R. Requena
Joaquín Castilla
author_sort Hasier Eraña
collection DOAJ
description Abstract Among transmissible spongiform encephalopathies or prion diseases affecting humans, sporadic forms such as sporadic Creutzfeldt–Jakob disease are the vast majority. Unlike genetic or acquired forms of the disease, these idiopathic forms occur seemingly due to a random event of spontaneous misfolding of the cellular PrP (PrPC) into the pathogenic isoform (PrPSc). Currently, the molecular mechanisms that trigger and drive this event, which occurs in approximately one individual per million each year, remain completely unknown. Modelling this phenomenon in experimental settings is highly challenging due to its sporadic and rare occurrence. Previous attempts to model spontaneous prion misfolding in vitro have not been fully successful, as the spontaneous formation of prions is infrequent and stochastic, hindering the systematic study of the phenomenon. In this study, we present the first method that consistently induces spontaneous misfolding of recombinant PrP into bona fide prions within hours, providing unprecedented possibilities to investigate the mechanisms underlying sporadic prionopathies. By fine-tuning the Protein Misfolding Shaking Amplification method, which was initially developed to propagate recombinant prions, we have created a methodology that consistently produces spontaneously misfolded recombinant prions in 100% of the cases. Furthermore, this method gives rise to distinct strains and reveals the critical influence of charged surfaces in this process.
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spelling doaj.art-63c13fcaea6249e3a04b3b8cea76b3ad2023-11-26T14:31:56ZengBMCActa Neuropathologica Communications2051-59602023-09-0111113010.1186/s40478-023-01640-8Understanding the key features of the spontaneous formation of bona fide prions through a novel methodology that enables their swift and consistent generationHasier Eraña0Carlos M. Díaz-Domínguez1Jorge M. Charco2Enric Vidal3Ezequiel González-Miranda4Miguel A. Pérez-Castro5Patricia Piñeiro6Rafael López-Moreno7Cristina Sampedro-Torres-Quevedo8Leire Fernández-Veiga9Juan Tasis-Galarza10Nuria L. Lorenzo11Aileen Santini-Santiago12Melisa Lázaro13Sandra García-Martínez14Nuno Gonçalves-Anjo15Maitena San-Juan-Ansoleaga16Josu Galarza-Ahumada17Eva Fernández-Muñoz18Samanta Giler19Mikel Valle20Glenn C. Telling21Mariví Geijó22Jesús R. Requena23Joaquín Castilla24Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkIRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona (UAB)Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCIMUS Biomedical Research Institute and Department of Medical Sciences, University of Santiago de Compostela-IDISCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkIRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona (UAB)Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkPrion Research Center (PRC), Colorado State UniversityAnimal Health Department, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkCIMUS Biomedical Research Institute and Department of Medical Sciences, University of Santiago de Compostela-IDISCenter for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkAbstract Among transmissible spongiform encephalopathies or prion diseases affecting humans, sporadic forms such as sporadic Creutzfeldt–Jakob disease are the vast majority. Unlike genetic or acquired forms of the disease, these idiopathic forms occur seemingly due to a random event of spontaneous misfolding of the cellular PrP (PrPC) into the pathogenic isoform (PrPSc). Currently, the molecular mechanisms that trigger and drive this event, which occurs in approximately one individual per million each year, remain completely unknown. Modelling this phenomenon in experimental settings is highly challenging due to its sporadic and rare occurrence. Previous attempts to model spontaneous prion misfolding in vitro have not been fully successful, as the spontaneous formation of prions is infrequent and stochastic, hindering the systematic study of the phenomenon. In this study, we present the first method that consistently induces spontaneous misfolding of recombinant PrP into bona fide prions within hours, providing unprecedented possibilities to investigate the mechanisms underlying sporadic prionopathies. By fine-tuning the Protein Misfolding Shaking Amplification method, which was initially developed to propagate recombinant prions, we have created a methodology that consistently produces spontaneously misfolded recombinant prions in 100% of the cases. Furthermore, this method gives rise to distinct strains and reveals the critical influence of charged surfaces in this process.https://doi.org/10.1186/s40478-023-01640-8PrionTransmissible spongiform encephalopathiesSpontaneous misfoldingStrain
spellingShingle Hasier Eraña
Carlos M. Díaz-Domínguez
Jorge M. Charco
Enric Vidal
Ezequiel González-Miranda
Miguel A. Pérez-Castro
Patricia Piñeiro
Rafael López-Moreno
Cristina Sampedro-Torres-Quevedo
Leire Fernández-Veiga
Juan Tasis-Galarza
Nuria L. Lorenzo
Aileen Santini-Santiago
Melisa Lázaro
Sandra García-Martínez
Nuno Gonçalves-Anjo
Maitena San-Juan-Ansoleaga
Josu Galarza-Ahumada
Eva Fernández-Muñoz
Samanta Giler
Mikel Valle
Glenn C. Telling
Mariví Geijó
Jesús R. Requena
Joaquín Castilla
Understanding the key features of the spontaneous formation of bona fide prions through a novel methodology that enables their swift and consistent generation
Acta Neuropathologica Communications
Prion
Transmissible spongiform encephalopathies
Spontaneous misfolding
Strain
title Understanding the key features of the spontaneous formation of bona fide prions through a novel methodology that enables their swift and consistent generation
title_full Understanding the key features of the spontaneous formation of bona fide prions through a novel methodology that enables their swift and consistent generation
title_fullStr Understanding the key features of the spontaneous formation of bona fide prions through a novel methodology that enables their swift and consistent generation
title_full_unstemmed Understanding the key features of the spontaneous formation of bona fide prions through a novel methodology that enables their swift and consistent generation
title_short Understanding the key features of the spontaneous formation of bona fide prions through a novel methodology that enables their swift and consistent generation
title_sort understanding the key features of the spontaneous formation of bona fide prions through a novel methodology that enables their swift and consistent generation
topic Prion
Transmissible spongiform encephalopathies
Spontaneous misfolding
Strain
url https://doi.org/10.1186/s40478-023-01640-8
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