Pathological characterization of TgElk mice injected with brain homogenate from elk with chronic wasting disease
Journal of Veterinary Science
;
: 21-26, 2013.
Article
Dans Anglais
| WPRIM
| ID: wpr-142094
ABSTRACT
Chronic wasting disease (CWD) is classified as a transmissible spongiform encephalopathy or prion disease that affects cervids. CWD has been reported in 15 US states, two Canadian provinces, and in imported elk on several farms in Korea. This study was conducted to examine the molecular biological and pathogenic characteristics of a CWD-associated prion isolated in Korea. The epidemiological origin of this pathogen was also determined. Homozygous TgElk mice were infected with a CWD-affected elk brain pool prepared from the brain of an imported Canadian elk. We measured the incubation time of the pathogen, neuropathological changes by immunohistochemical staining, the pattern(s) of scrapie prion protein (PrPSc) deposition, and PrPSc protein profiles by Western blotting. We found that TgElk mice infected with brain homogenate from the elk suffering from CWD showed incubation times, vacuolar degeneration, and PrPSc accumulation similar to those previously reported in the literature. Our results suggest that homozygous TgElk mice efficiently transmit CWD with short incubation times and that this animal can serve a valuable research model and reliable in vivo diagnostic tool.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Encéphale
/
Prions
/
Cervidae
/
Souris transgéniques
/
Maladie du dépérissement chronique
/
République de Corée
/
Génotype
Type d'étude:
Étude pronostique
Limites du sujet:
Animaux
Pays comme sujet:
Asie
langue:
Anglais
Texte intégral:
Journal of Veterinary Science
Année:
2013
Type:
Article
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