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Cell-free prion protein conversion assays in screening for anti-prion drug candidates.

07:00 EST 6th November 2018 | BioPortfolio

Summary of "Cell-free prion protein conversion assays in screening for anti-prion drug candidates."

The search for medications to treat prion diseases has lasted more than 30 years but no clinically validated treatments for prion diseases of humans or livestock have been realized. A primary strategy has been to identify molecules that can inhibit the formation of pathological forms of prion protein, for example, protease-resistant forms called PrP. Such inhibitors can prolong the lives of experimental animals inoculated peripherally with prions, but the practical therapeutic efficacy of known inhibitors against ongoing brain infections has so far been limited by toxicity, insufficient bioavailability to the CNS, and/or strain specificities. Thus, the search continues for clinically applicable inhibitors of PrP accumulation. Here we highlight key cell-free assays that are useful for the initial screening and mechanistic characterization of such compounds and are relatively high throughput, rapid, and cost-effective. These include cell-free conversions, protein misfolding cyclic amplification (PMCA), real time quaking-induced conversion (RT-QuIC), and fluorescence correlation-based competitive binding assays.

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This article was published in the following journal.

Name: Current opinion in pharmacology
ISSN: 1471-4973
Pages: 1-7

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