Inhibitory activities of anthraquinone and xanthone derivatives against transthyretin amyloidogenesis

Ryota Kitakami, Kishin Inui, Yusuke Nakagawa, Yurika Sawai, Wakana Katayama, Takeshi Yokoyama, Takuya Okada, Kayoko Kanamitsu, Shinsaku Nakagawa, Naoki Toyooka, Mineyuki Mizuguchi*

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

7 被引用数 (Scopus)

抄録

Transthyretin is a tetrameric protein which functions as a transporter of thyroxine and retinol-binding protein. Misfolding and amyloid aggregation of transthyretin are known to cause wild-type and hereditary transthyretin amyloidosis. Stabilization of the transthyretin tetramer by low molecular weight compounds is an efficacious strategy to inhibit the aggregation pathway in the amyloidosis. Here, we investigated the inhibitory activities of anthraquinone and xanthone derivatives against amyloid aggregation, and found that xanthone-2-carboxylic acid with one chlorine or methyl group has strong inhibitory activity comparable with that of diflunisal, which is one of the best known stabilizers of transthyretin. X-ray crystallographic structures of transthyretin in complex with the compounds revealed that the introduction of chlorine, which is buried in a hydrophobic region, is important for the strong inhibitory effect of the stabilizer against amyloidogenesis. An in vitro absorption, distribution, metabolism and elimination (ADME) study and in vivo pharmacokinetic study demonstrated that the compounds have drug-like features, suggesting that they have potential as therapeutic agents to stabilize transthyretin.

本文言語英語
論文番号116292
ジャーナルBioorganic and Medicinal Chemistry
44
DOI
出版ステータス出版済み - 2021/08/15

ASJC Scopus 主題領域

  • 生化学
  • 分子医療
  • 分子生物学
  • 薬科学
  • 創薬
  • 臨床生化学
  • 有機化学

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