Seeger, Harald; Heikenwalder, Mathias; Zeller, Nicolas; Kranich, Jan; Schwarz, Petra; Gaspert, Ariana; Seifert, Burkhardt; Miele, Gino; Aguzzi, Adriano (2005). Coincident scrapie infection and nephritis lead to urinary prion excretion. Science, 310(5746):324-326.
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Prion infectivity is typically restricted to the central nervous and lymphatic systems of infected hosts, but chronic inflammation can expand the distribution of prions. We tested whether chronic inflammatory kidney disorders would trigger excretion of prion infectivity into urine. Urinary proteins from scrapie-infected mice with lymphocytic nephritis induced scrapie upon inoculation into noninfected indicator mice. Prionuria was found in presymptomatic scrapie-infected and in sick mice, whereas neither prionuria nor urinary PrP(Sc) was detectable in prion-infected wild-type or PrP(C)-overexpressing mice, or in nephritic mice inoculated with noninfectious brain. Thus, urine may provide a vector for horizontal prion transmission, and inflammation of excretory organs may influence prion spread.
|Item Type:||Journal Article, refereed|
|Communities & Collections:||04 Faculty of Medicine > University Hospital Zurich > Institute of Surgical Pathology
04 Faculty of Medicine > Epidemology, Biostatistics and Prevention Institute (EBPI)
04 Faculty of Medicine > University Hospital Zurich > Institute of Neuropathology
|DDC:||570 Life sciences; biology
610 Medicine & health
|Date:||14 October 2005|
|Deposited On:||11 Feb 2008 12:26|
|Last Modified:||02 Dec 2013 09:16|
|Publisher:||American Association for the Advancement of Science (AAAS)|
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