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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-4643

Falsig, J; Aguzzi, A (2008). The prion organotypic slice culture assay-POSCA. Nature Protocols, 3(4):555-562.

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Abstract

Methods enabling prion replication ex vivo are important for advancing prion science. However, few such technologies exist and many prion strains are intractable with them. Here, we describe a prion organotypic slice culture assay (POSCA), which allows for prion amplification and titration ex vivo under conditions that closely resemble intracerebral infection. Organotypic slices are incubated with infectious inoculum as free-floating sections, washed and cultured for up to 8 weeks. Slice cultures are a rich source of protein or RNA and allow for stringent comparisons between uninfected and prion-infected samples generated from the same mouse. Thirty-five days after contact with prions, cerebellar slices have amplified PrP(Sc) quantitatively similar to that seen in vivo, but accelerated fivefold. The POSCA detects replication of specific prion strains from disparate sources, including bovines and ovines, with variable efficiency. The culture procedure and prion infection can be performed in 8 h.

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12 citations in Web of Science®
13 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, further contribution
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Institute of Neuropathology
DDC:570 Life sciences; biology
610 Medicine & health
Language:English
Date:2008
Deposited On:05 Dec 2008 07:56
Last Modified:27 Nov 2013 17:41
Publisher:Nature Publishing Group
ISSN:1750-2799
Publisher DOI:10.1038/nprot.2008.13
PubMed ID:18388937

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