Structure-based discovery of fiber-binding compounds that reduce the cytotoxicity of amyloid beta

Jiang, Lin; Liu, Cong; Leibly, David; Landau, Meytal; Zhao, Minglei; Hughes, Michael P.; Eisenberg, David S.

doi:10.7554/eLife.00857

Title: Structure-based discovery of fiber-binding compounds that reduce the cytotoxicity of amyloid beta

Journal Article · Tue Jul 16 00:00:00 EDT 2013 · eLife

DOI:https://doi.org/10.7554/eLife.00857· OSTI ID:1197662

Jiang, Lin ^[1]; Liu, Cong ^[1]; Leibly, David ^[1]; Landau, Meytal ^[1]; Zhao, Minglei ^[1]; Hughes, Michael P. ^[1]; Eisenberg, David S. ^[1]

Departments of Chemistry and Biochemistry and Biological Chemistry, Howard Hughes Medical Institute, UCLA–DOE Institute for Genomics and Proteomics, University of California, Los Angeles, Los Angeles, United States

Amyloid protein aggregates are associated with dozens of devastating diseases including Alzheimer’s, Parkinson’s, ALS, and diabetes type 2. While structure-based discovery of compounds has been effective in combating numerous infectious and metabolic diseases, ignorance of amyloid structure has hindered similar approaches to amyloid disease. Here we show that knowledge of the atomic structure of one of the adhesive, steric-zipper segments of the amyloid-beta (Aβ) protein of Alzheimer’s disease, when coupled with computational methods, identifies eight diverse but mainly flat compounds and three compound derivatives that reduce Aβ cytotoxicity against mammalian cells by up to 90%. Although these compounds bind to Aβ fibers, they do not reduce fiber formation of Aβ. Structure-activity relationship studies of the fiber-binding compounds and their derivatives suggest that compound binding increases fiber stability and decreases fiber toxicity, perhaps by shifting the equilibrium of Aβ from oligomers to fibers.

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Research Organization:: Univ. of California, Los Angeles, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: FC02-02ER63421

OSTI ID:: 1197662

Alternate ID(s):: OSTI ID: 1197667; OSTI ID: 1628798

Journal Information:: eLife, Journal Name: eLife Vol. 2; ISSN 2050-084X

Publisher:: eLife Sciences Publications, Ltd.Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 109 works

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