Structural stabilization of transthyretin by a new compound, 6-benzoyl-2-hydroxy-1H-benzo[de]isoquinoline-1,3(2H)-dione

Familial amyloid polyneuropathy (FAP) is a genetic, adult-onset, neurodegenerative disorder caused by amyloid formation of transthyretin (TTR), a thyroxine-binding protein. Mutation in TTR causes a propensity of TTR tetramer to dissociate to monomer, which is the first step to amyloidosis. Thus, a d...

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Main Authors: Takeshi Yokoyama (Author), Shun Takaki (Author), Keisuke Chosa (Author), Takashi Sato (Author), Mary Ann Suico (Author), Yuriko Teranishi (Author), Tsuyoshi Shuto (Author), Mineyuki Mizuguchi (Author), Hirofumi Kai (Author)
Format: Book
Published: Elsevier, 2015-12-01T00:00:00Z.
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Summary:Familial amyloid polyneuropathy (FAP) is a genetic, adult-onset, neurodegenerative disorder caused by amyloid formation of transthyretin (TTR), a thyroxine-binding protein. Mutation in TTR causes a propensity of TTR tetramer to dissociate to monomer, which is the first step to amyloidosis. Thus, a drug that can stabilize the tetramer structure will have therapeutic benefit. Here, by virtual screening and biochemical assays, we identified small molecule 6-benzoyl-2-hydroxy-1H-benzo[de]isoquinoline-1,3(2H)-dione (L6) that can prevent the dissociation of TTR to monomer. X-ray crystallography reveals that L6 binds to the T4 binding pocket of TTR. These findings show that L6 is a candidate TTR stabilizer.
Item Description:1347-8613
10.1016/j.jphs.2015.09.006