Genetic predictions of prion disease susceptibility in carnivore species based on variability of the prion gene coding region.

Mammalian species vary widely in their apparent susceptibility to prion diseases. For example, several felid species developed prion disease (feline spongiform encephalopathy or FSE) during the bovine spongiform encephalopathy (BSE) epidemic in the United Kingdom, whereas no canine BSE cases were de...

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Main Authors: Paula Stewart, Lauren Campbell, Susan Skogtvedt, Karen A Griffin, Jon M Arnemo, Morten Tryland, Simon Girling, Michael W Miller, Michael A Tranulis, Wilfred Goldmann
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0050623&type=printable
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author Paula Stewart
Lauren Campbell
Susan Skogtvedt
Karen A Griffin
Jon M Arnemo
Morten Tryland
Simon Girling
Michael W Miller
Michael A Tranulis
Wilfred Goldmann
author_facet Paula Stewart
Lauren Campbell
Susan Skogtvedt
Karen A Griffin
Jon M Arnemo
Morten Tryland
Simon Girling
Michael W Miller
Michael A Tranulis
Wilfred Goldmann
author_sort Paula Stewart
collection DOAJ
description Mammalian species vary widely in their apparent susceptibility to prion diseases. For example, several felid species developed prion disease (feline spongiform encephalopathy or FSE) during the bovine spongiform encephalopathy (BSE) epidemic in the United Kingdom, whereas no canine BSE cases were detected. Whether either of these or other groups of carnivore species can contract other prion diseases (e.g. chronic wasting disease or CWD) remains an open question. Variation in the host-encoded prion protein (PrP(C)) largely explains observed disease susceptibility patterns within ruminant species, and may explain interspecies differences in susceptibility as well. We sequenced and compared the open reading frame of the PRNP gene encoding PrP(C) protein from 609 animal samples comprising 29 species from 22 genera of the Order Carnivora; amongst these samples were 15 FSE cases. Our analysis revealed that FSE cases did not encode an identifiable disease-associated PrP polymorphism. However, all canid PrPs contained aspartic acid or glutamic acid at codon 163 which we propose provides a genetic basis for observed susceptibility differences between canids and felids. Among other carnivores studied, wolverine (Gulo gulo) and pine marten (Martes martes) were the only non-canid species to also express PrP-Asp163, which may impact on their prion diseases susceptibility. Populations of black bear (Ursus americanus) and mountain lion (Puma concolor) from Colorado showed little genetic variation in the PrP protein and no variants likely to be highly resistant to prions in general, suggesting that strain differences between BSE and CWD prions also may contribute to the limited apparent host range of the latter.
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spelling doaj-art-9e8a5f592ed846bfa01a8cbef5659d012025-08-20T03:26:38ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-01712e5062310.1371/journal.pone.0050623Genetic predictions of prion disease susceptibility in carnivore species based on variability of the prion gene coding region.Paula StewartLauren CampbellSusan SkogtvedtKaren A GriffinJon M ArnemoMorten TrylandSimon GirlingMichael W MillerMichael A TranulisWilfred GoldmannMammalian species vary widely in their apparent susceptibility to prion diseases. For example, several felid species developed prion disease (feline spongiform encephalopathy or FSE) during the bovine spongiform encephalopathy (BSE) epidemic in the United Kingdom, whereas no canine BSE cases were detected. Whether either of these or other groups of carnivore species can contract other prion diseases (e.g. chronic wasting disease or CWD) remains an open question. Variation in the host-encoded prion protein (PrP(C)) largely explains observed disease susceptibility patterns within ruminant species, and may explain interspecies differences in susceptibility as well. We sequenced and compared the open reading frame of the PRNP gene encoding PrP(C) protein from 609 animal samples comprising 29 species from 22 genera of the Order Carnivora; amongst these samples were 15 FSE cases. Our analysis revealed that FSE cases did not encode an identifiable disease-associated PrP polymorphism. However, all canid PrPs contained aspartic acid or glutamic acid at codon 163 which we propose provides a genetic basis for observed susceptibility differences between canids and felids. Among other carnivores studied, wolverine (Gulo gulo) and pine marten (Martes martes) were the only non-canid species to also express PrP-Asp163, which may impact on their prion diseases susceptibility. Populations of black bear (Ursus americanus) and mountain lion (Puma concolor) from Colorado showed little genetic variation in the PrP protein and no variants likely to be highly resistant to prions in general, suggesting that strain differences between BSE and CWD prions also may contribute to the limited apparent host range of the latter.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0050623&type=printable
spellingShingle Paula Stewart
Lauren Campbell
Susan Skogtvedt
Karen A Griffin
Jon M Arnemo
Morten Tryland
Simon Girling
Michael W Miller
Michael A Tranulis
Wilfred Goldmann
Genetic predictions of prion disease susceptibility in carnivore species based on variability of the prion gene coding region.
PLoS ONE
title Genetic predictions of prion disease susceptibility in carnivore species based on variability of the prion gene coding region.
title_full Genetic predictions of prion disease susceptibility in carnivore species based on variability of the prion gene coding region.
title_fullStr Genetic predictions of prion disease susceptibility in carnivore species based on variability of the prion gene coding region.
title_full_unstemmed Genetic predictions of prion disease susceptibility in carnivore species based on variability of the prion gene coding region.
title_short Genetic predictions of prion disease susceptibility in carnivore species based on variability of the prion gene coding region.
title_sort genetic predictions of prion disease susceptibility in carnivore species based on variability of the prion gene coding region
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0050623&type=printable
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