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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Med+Chem
2012 ; 55
(21
): 8997-9008
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Small-molecule structure correctors target abnormal protein structure and
function: structure corrector rescue of apolipoprotein E4-associated
neuropathology
#MMPMID23013167
Mahley RW
; Huang Y
J Med Chem
2012[Nov]; 55
(21
): 8997-9008
PMID23013167
show 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 and 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 to be highly effective for the treatment of many protein-misfolding
diseases.