Experimental transmission to a calf of an isolate of Spanish classical scrapie

Rosa Bolea, Carlos Hedman, Óscar López-Pérez, Belén Marín, Fabien Corbiére, Antonio Romero, Bernardino Moreno, Inmaculada Martín-Burriel, Olivier Andréoletti, Juan José Badiola, Marti Pumarola Batlle, Enric Vidal Barba

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)

Abstract

© 2017 The Authors. Multiple theories exist regarding the origin of bovine spongiform encephalopathy (BSE). An early and prominent theory proposed that BSE was the result of the adaptation of sheep scrapie to cattle. The reports to date indicate that the distribution of the pathological prion protein (PrPSc) in experimental bovine scrapie is largely restricted to the central nervous system (CNS). Here, we describe pathological findings in a calf intracerebrally inoculated with a Spanish classical scrapie isolate. While clinical disease was observed 30 months after inoculation and PrPSc was detected in the CNS, the corresponding phenotype differed from that of BSE. Immunohistochemistry and PMCA also revealed the presence of PrPSc in the peripheral nerves, lymphoid tissues, skeletal muscle and gastrointestinal tract, suggesting centrifugal spread of the scrapie agent from the brain. To the best of our knowledge, this is the first report describing the detection of PrPSc in tissues other than the CNS after experimental transmission of scrapie to cattle.
Original languageEnglish
Article number000906
Pages (from-to)2628-2634
JournalJournal of General Virology
Volume98
Issue number10
DOIs
Publication statusPublished - 1 Oct 2017

Keywords

  • BSE
  • Bovine
  • Ovine
  • Peripheral tissues
  • Prion
  • Scrapie

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