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Acc Chem Res. 2006 Sep;39(9):611-9.

Small molecule oxidation products trigger disease-associated protein misfolding.

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  • 1The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.

Abstract

Oxidative stress and inflammation are risk factors for both the development of alpha-synucleinopathies, such as Parkinson's disease and dementia with Lewy bodies, and Alzheimer's disease, the two most common neurodegenerative disorders. These diseases are associated with the neurotoxic deposition of misassembled alpha-synuclein and amyloid-beta (Abeta) peptides, respectively. Both occur sporadically, that is, without detectable disease-related mutations, in the vast majority of cases. Small molecule oxidation products, especially secosterols derived from cholesterol and 4-hydroxynonenal derived from lipid peroxidation, found in afflicted brains, accelerate the misassembly of both Abeta and alpha-synuclein. This Account explores the mechanism of small molecule oxidation product-mediated protein misassembly and possible intervention strategies.

PMID:
16981677
[PubMed - indexed for MEDLINE]
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