期刊
NANOSCALE
卷 2, 期 12, 页码 2724-2732出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0nr00551g
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资金
- Compagnia di San Paolo
- Italian Ministry of Health
- Italian government through a CIPE
- Associazione Italiana Encefalopatie da Prioni
Gold nanoparticles coated with oppositely charged polyelectrolytes, such as polyallylamine hydrochloride and polystyrenesulfonate, were examined for potential inhibition of prion protein aggregation and prion (PrPSc) conversion and replication. Different coatings, finishing with a positive or negative layer, were tested, and different numbers of layers were investigated for their ability to interact and reduce the accumulation of PrPSc in scrapie prion infected ScGT1 and ScN2a cells. The particles efficiently hampered the accumulation of PrPSc in ScN2a cells and showed curing effects on ScGT1 cells with a nanoparticle concentration in the picomolar range. Finally, incubation periods of prion-infected mice treated with nanomolar concentrations of gold nanoparticles were significantly longer compared to untreated controls.
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