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Updated: Jul 15, 2026

Isolation of Soluble and Insoluble PrP Oligomers in the Normal Human Brain
Published on: October 3, 2012
Update on human prion disease
Jonathan D F Wadsworth1, John Collinge
1MRC Prion Unit and Department of Neurodegenerative Disease, Institute of Neurology, University College London, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK.
Abstract:
The recognition that variant Creutzfeldt-Jakob disease (vCJD) is caused by the same prion strain as bovine spongiform encephalopathy in cattle has dramatically highlighted the need for a precise understanding of the molecular biology of human prion diseases. Detailed clinical, pathological and molecular data from a large number of human prion disease patients indicate that phenotypic diversity in human prion disease relates in part to the propagation of disease-related PrP isoforms with distinct physicochemical properties. Incubation periods of prion infection in humans can exceed 50 years and therefore it will be some years before the extent of any human vCJD epidemic can be predicted with confidence.
Insights
Variant Creutzfeldt-Jakob disease (vCJD) is linked to bovine spongiform encephalopathy. Human prion disease diversity stems from distinct prion protein (PrP) isoforms, influencing disease characteristics and incubation periods.
Area of Science:
- Neuroscience
- Molecular Biology
- Epidemiology
Background:
- Variant Creutzfeldt-Jakob disease (vCJD) shares a prion strain with bovine spongiform encephalopathy (BSE).
- Understanding human prion diseases requires detailed molecular insights.
- Prion diseases exhibit significant phenotypic diversity.
Purpose of the Study:
- To investigate the molecular basis of phenotypic diversity in human prion diseases.
- To understand the role of distinct prion protein (PrP) isoforms in disease characteristics.
Main Methods:
- Analysis of extensive clinical, pathological, and molecular data from human prion disease patients.
- Characterization of disease-related PrP isoforms and their physicochemical properties.
Main Results:
- Phenotypic variation in human prion diseases is partly attributed to the propagation of PrP isoforms with differing physicochemical properties.
- These distinct PrP isoforms influence disease presentation and progression.
Conclusions:
- Distinct prion protein (PrP) isoforms are key drivers of human prion disease diversity.
- Long incubation periods (over 50 years) complicate prediction of vCJD epidemic extent.
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