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

Takeshi Yokoyama, Shun Takaki, Keisuke Chosa, Takashi Sato, Mary Ann Suico, Yuriko Teranishi, Tsuyoshi Shuto, Mineyuki Mizuguchi*, Hirofumi Kai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)240-243
Number of pages4
JournalJournal of Pharmacological Sciences
Volume129
Issue number4
DOIs
StatePublished - 2015/12

Keywords

  • 6-Benzoyl-2-hydroxy-1H-benzo[de]isoquinoline-1,3(2H)-dione (L6)
  • Familial amyloid polyneuropathy (FAP)
  • Transthyretin (TTR)

ASJC Scopus subject areas

  • Molecular Medicine
  • Pharmacology

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