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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 Nat+Commun
2016 ; 7
(ä): 10787
Nephropedia Template TP
gab.com Text
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English Wikipedia
Repositioning tolcapone as a potent inhibitor of transthyretin amyloidogenesis
and associated cellular toxicity
#MMPMID26902880
Sant'Anna R
; Gallego P
; Robinson LZ
; Pereira-Henriques A
; Ferreira N
; Pinheiro F
; Esperante S
; Pallares I
; Huertas O
; Almeida MR
; Reixach N
; Insa R
; Velazquez-Campoy A
; Reverter D
; Reig N
; Ventura S
Nat Commun
2016[Feb]; 7
(ä): 10787
PMID26902880
show ga
Transthyretin (TTR) is a plasma homotetrameric protein implicated in fatal
systemic amyloidoses. TTR tetramer dissociation precedes pathological TTR
aggregation. Native state stabilizers are promising drugs to treat TTR
amyloidoses. Here we repurpose tolcapone, an FDA-approved molecule for
Parkinson's disease, as a potent TTR aggregation inhibitor. Tolcapone binds
specifically to TTR in human plasma, stabilizes the native tetramer in vivo in
mice and humans and inhibits TTR cytotoxicity. Crystal structures of tolcapone
bound to wild-type TTR and to the V122I cardiomyopathy-associated variant show
that it docks better into the TTR T4 pocket than tafamidis, so far the only drug
on the market to treat TTR amyloidoses. These data indicate that tolcapone,
already in clinical trials for familial amyloid polyneuropathy, is a strong
candidate for therapeutic intervention in these diseases, including those
affecting the central nervous system, for which no small-molecule therapy exists.