Sporadic Creutzfeldt-Jakob disease: co-occurrence of different types of PrP(Sc) in the same brain.

Puoti, G; Giaccone, G; Rossi, G; Canciani, B; Bugiani, O; Tagliavini, F · Neurology · 1999

case_series · Level IV

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Abstract

Phenotypic heterogeneity of sporadic Creutzfeldt-Jakob disease (CJD) has been linked to biochemically distinct types of the protease-resistant form of the prion protein (type 1 and type 2 PrP(Sc)). We investigated 14 cases of sporadic CJD and found that both type 1 and type 2 PrP(Sc) coexisted in 5 subjects. The distinct PrP(Sc) isoforms were associated with different patterns of PrP deposition and severity of spongiform changes, suggesting that the PrP(Sc) type plays a central role in determining the neuropathologic profile of CJD.

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