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Amyloid pores from pathogenic mutations

Hilal A. Lashuel, Dean Hartley, Benjamin M. Petre, Thomas Walz and Peter T. Lansbury ()
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Hilal A. Lashuel: Center for Neurologic Diseases, Harvard Medical School
Dean Hartley: Center for Neurologic Diseases, Harvard Medical School
Benjamin M. Petre: Harvard Medical School
Thomas Walz: Harvard Medical School
Peter T. Lansbury: Center for Neurologic Diseases, Harvard Medical School

Nature, 2002, vol. 418, issue 6895, 291-291

Abstract: Abstract Alzheimer's and Parkinson's diseases are associated with the formation in the brain of amyloid fibrils from β-amyloid and α-synuclein proteins, respectively. It is likely that oligomeric fibrillization intermediates (protofibrils), rather than the fibrils themselves, are pathogenic, but the mechanism by which they cause neuronal death remains a mystery. We show here that mutant amyloid proteins associated with familial Alzheimer's and Parkinson's diseases form morphologically indistinguishable annular protofibrils that resemble a class of pore-forming bacterial toxins, suggesting that inappropriate membrane permeabilization might be the cause of cell dysfunction and even cell death in amyloid diseases.

Date: 2002
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DOI: 10.1038/418291a

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