Spontaneous Generation of Infectious Prion Disease in Transgenic Mice

We generated transgenic mice expressing bovine cellular prion protein (PrPC) with a leucine substitution at codon 113 (113L). This protein is homologous to human protein with mutation 102L, and its genetic link with Gerstmann–Sträussler–Scheinker syndrome has been established. This mutation in bovin...

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Main Authors: Juan-María Torres, Joaquín Castilla, Belén Pintado, Alfonso Gutiérrez-Adan, Olivier Andréoletti, Patricia Aguilar-Calvo, Ana-Isabel Arroba, Beatriz Parra-Arrondo, Isidro Ferrer, Jorge Manzanares, Juan-Carlos Espinosa
Format: Article
Language:English
Published: Centers for Disease Control and Prevention 2013-12-01
Series:Emerging Infectious Diseases
Subjects:
Online Access:https://wwwnc.cdc.gov/eid/article/19/12/13-0106_article
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author Juan-María Torres
Joaquín Castilla
Belén Pintado
Alfonso Gutiérrez-Adan
Olivier Andréoletti
Patricia Aguilar-Calvo
Ana-Isabel Arroba
Beatriz Parra-Arrondo
Isidro Ferrer
Jorge Manzanares
Juan-Carlos Espinosa
author_facet Juan-María Torres
Joaquín Castilla
Belén Pintado
Alfonso Gutiérrez-Adan
Olivier Andréoletti
Patricia Aguilar-Calvo
Ana-Isabel Arroba
Beatriz Parra-Arrondo
Isidro Ferrer
Jorge Manzanares
Juan-Carlos Espinosa
author_sort Juan-María Torres
collection DOAJ
description We generated transgenic mice expressing bovine cellular prion protein (PrPC) with a leucine substitution at codon 113 (113L). This protein is homologous to human protein with mutation 102L, and its genetic link with Gerstmann–Sträussler–Scheinker syndrome has been established. This mutation in bovine PrPC causes a fully penetrant, lethal, spongiform encephalopathy. This genetic disease was transmitted by intracerebral inoculation of brain homogenate from ill mice expressing mutant bovine PrP to mice expressing wild-type bovine PrP, which indicated de novo generation of infectious prions. Our findings demonstrate that a single amino acid change in the PrPC sequence can induce spontaneous generation of an infectious prion disease that differs from all others identified in hosts expressing the same PrPC sequence. These observations support the view that a variety of infectious prion strains might spontaneously emerge in hosts displaying random genetic PrPC mutations.
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spelling doaj.art-f4eec1200adf4068814944b3da7f0e6b2022-12-21T17:26:27ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592013-12-0119121938194710.3201/eid1912.130106Spontaneous Generation of Infectious Prion Disease in Transgenic MiceJuan-María TorresJoaquín CastillaBelén PintadoAlfonso Gutiérrez-AdanOlivier AndréolettiPatricia Aguilar-CalvoAna-Isabel ArrobaBeatriz Parra-ArrondoIsidro FerrerJorge ManzanaresJuan-Carlos EspinosaWe generated transgenic mice expressing bovine cellular prion protein (PrPC) with a leucine substitution at codon 113 (113L). This protein is homologous to human protein with mutation 102L, and its genetic link with Gerstmann–Sträussler–Scheinker syndrome has been established. This mutation in bovine PrPC causes a fully penetrant, lethal, spongiform encephalopathy. This genetic disease was transmitted by intracerebral inoculation of brain homogenate from ill mice expressing mutant bovine PrP to mice expressing wild-type bovine PrP, which indicated de novo generation of infectious prions. Our findings demonstrate that a single amino acid change in the PrPC sequence can induce spontaneous generation of an infectious prion disease that differs from all others identified in hosts expressing the same PrPC sequence. These observations support the view that a variety of infectious prion strains might spontaneously emerge in hosts displaying random genetic PrPC mutations.https://wwwnc.cdc.gov/eid/article/19/12/13-0106_articleprions and related diseasesspontaneous generationtransmissible spongiform encephalitisTSEbovine spongiform encephalitisBSE
spellingShingle Juan-María Torres
Joaquín Castilla
Belén Pintado
Alfonso Gutiérrez-Adan
Olivier Andréoletti
Patricia Aguilar-Calvo
Ana-Isabel Arroba
Beatriz Parra-Arrondo
Isidro Ferrer
Jorge Manzanares
Juan-Carlos Espinosa
Spontaneous Generation of Infectious Prion Disease in Transgenic Mice
Emerging Infectious Diseases
prions and related diseases
spontaneous generation
transmissible spongiform encephalitis
TSE
bovine spongiform encephalitis
BSE
title Spontaneous Generation of Infectious Prion Disease in Transgenic Mice
title_full Spontaneous Generation of Infectious Prion Disease in Transgenic Mice
title_fullStr Spontaneous Generation of Infectious Prion Disease in Transgenic Mice
title_full_unstemmed Spontaneous Generation of Infectious Prion Disease in Transgenic Mice
title_short Spontaneous Generation of Infectious Prion Disease in Transgenic Mice
title_sort spontaneous generation of infectious prion disease in transgenic mice
topic prions and related diseases
spontaneous generation
transmissible spongiform encephalitis
TSE
bovine spongiform encephalitis
BSE
url https://wwwnc.cdc.gov/eid/article/19/12/13-0106_article
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