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Plaque-type deposition of prion protein in the damaged white matter of sporadic Creutzfeldt-Jakob disease MM1 patients.

Abstract：

:Plaque-type deposition of prion protein (PrP) in the brain has been extremely rare in sporadic Creutzfeldt-Jakob disease patients with methionine homozygosity at polymorphic codon 129 of the PrP gene and type 1 abnormal isoform of PrP (sCJD-MM1). Here we report three sCJD-MM1 patients who showed prominent PrP-positive amyloid plaques in the cerebral and cerebellar white matter. All three patients showed clinical courses of long duration (2 years < or =), particularly at the end-stage. The white matter of these patients was severely damaged because of the prolonged disease duration. Furthermore, Alzheimer's amyloid precursor protein, which accumulates within the axonal swellings under pathological conditions, co-accumulated with the PrP-amyloid plaques. These findings suggest that the axonal damage reflecting the prolonged disease duration causes the deposition of PrP-amyloid plaques in the white matter. The present study shows that PrP-amyloid plaques can occur in the white matter of sCJD-MM1 cases.

journal_name

Acta Neuropathol

journal_title

Acta neuropathologica

authors

Kobayashi A,Arima K,Ogawa M,Murata M,Fukuda T,Kitamoto T

doi

10.1007/s00401-008-0425-8

subject

Has Abstract

pub_date

2008-11-01 00:00:00

pages

561-6

issue

5

eissn

0001-6322

issn

1432-0533

journal_volume

116

pub_type

杂志文章

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