Inhibition of tau aggregation by a rosamine derivative that blocks tau intermolecular disulfide cross-linking

Title
Inhibition of tau aggregation by a rosamine derivative that blocks tau intermolecular disulfide cross-linking
Authors
마무눌 하크김도희유영헌임성수김동진장영태하형호김윤경
Keywords
tau aggregation; In-gel fluorescence; rosamine; Tau oligomerization; disulfide cross-linking; intermolecular disulfide bond; small molecule inhibitor; thiol reactivity
Issue Date
2014-09
Publisher
Amyloid : The Journal of Protein Folding Disorders
Citation
VOL 21, NO 3, 185-190
Abstract
Abstract Abnormal tau aggregates are presumed to be neurotoxic and are an important therapeutic target for multiple neurodegenerative disorders including Alzheimer's disease. Growing evidence has shown that tau intermolecular disulfide cross-linking is critical in generating tau oligomers that serve as a building block for higher-order aggregates. Here we report that a small molecule inhibitor prevents tau aggregation by blocking the generation of disulfide cross-linked tau oligomers. Among the compounds tested, a rosamine derivative bearing mild thiol reactivity selectively labeled tau and effectively inhibited oligomerization and fibrillization processes in vitro. Our data suggest that controlling tau oxidation status could be a new therapeutic strategy for prevention of abnormal tau aggregation.
URI
http://pubs.kist.re.kr/handle/201004/47752
ISSN
13506129
Appears in Collections:
KIST Publication > Article
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