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Deprecated: Implicit conversion from float 286.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 J+Med+Chem 2012 ; 55 (21): 8997-9008 Nephropedia Template TP
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Small-molecule Structure Correctors Target Abnormal Protein Structure and Function: The Structure Corrector Rescue of Apolipoprotein E4?associated Neuropathology #MMPMID23013167
Mahley RW; Huang Y
J Med Chem 2012[Nov]; 55 (21): 8997-9008 PMID23013167show ga
An attractive strategy to treat proteinopathies?diseases caused by malformed or misfolded proteins?is to restore protein function by inducing proper three-dimensional structure. We hypothesized that this approach would be effective in reversing the detrimental effects of apolipoprotein (apo) E4, the major allele that significantly increases the risk of developing Alzheimer?s disease and other neurodegenerative disorders. ApoE4?s detrimental effects result from its altered protein conformation (?domain interaction?), making it highly susceptible to proteolytic cleavage and the generation of neurotoxic fragments. Here, we review apoE structure and function, how apoE4 causes neurotoxicity, and describe the identification of potent small-molecule-based ?structure correctors? that induce proper apoE4 folding. SAR studies identified a series of small molecules that significantly reduced apoE4?s neurotoxic effects in cultured neurons, and a series that reduced apoE4 fragment levels in vivo, providing proof-of-concept for our approach. Structure corrector?based therapies could prove highly effective for the treatment of many protein-misfolding diseases.