First Author | Telling GC | Year | 1994 |
Journal | Proc Natl Acad Sci U S A | Volume | 91 |
Issue | 21 | Pages | 9936-40 |
PubMed ID | 7937921 | Mgi Jnum | J:21007 |
Mgi Id | MGI:69058 | Doi | 10.1073/pnas.91.21.9936 |
Citation | Telling GC, et al. (1994) Transmission of Creutzfeldt-Jakob disease from humans to transgenic mice expressing chimeric human-mouse prion protein. Proc Natl Acad Sci U S A 91(21):9936-40 |
abstractText | Transgenic (Tg) mice were constructed that express a chimeric prion protein (PrP) in which a segment of mouse (Mo) PrP was replaced with the corresponding human (Hu) PrP sequence. The chimeric PrP, designated MHu2MPrP, differs from MoPrP by 9 amino acids between residues 96 and 167. All of the Tg(MHu2M) mice developed neurologic disease approximately 200 days after inoculation with brain homogenates from three patients dying of Creutzfeldt-Jakob disease (CJD). Inoculation of Tg(MHu2M) mice with CJD prions produced MHu2MPrPSc (where PrPSc is the scrapie isoform of PrP); inoculation with Mo prions produced Mo-PrPSc. The patterns of MHu2MPrPSc and MoPrPSc accumulation in the brains of Tg(MHu2M) mice were different. About 10% of Tg(HuPrP) mice expressing HuPrP and non-Tg mice developed neurologic disease > 500 days after inoculation with CJD prions. The different susceptibilities of Tg(HuPrP) and Tg(MHu2M) mice to Hu prions indicate that additional species-specific factors are involved in prion replication. Diagnosis, prevention, and treatment of Hu prion diseases should be facilitated by Tg(MHu2M) mice. |