自己組み立てナノ構造は,構造的に同位体ペプチドからのH2S放出を調節する
Yin Wang1, Kuljeet Kaur1, Samantha J Scannelli1
1Department of Chemistry, Virginia Tech Center for Drug Discovery, and Macromolecules Innovation Institute , Virginia Tech , Blacksburg , Virginia 24061 , United States.
Journal of the American Chemical Society
|October 30, 2018
まとめ
研究者はペプチド-硫化水素 (H2S) ドナー結合体 (PHDC) を開発し,異なるナノ構造に自己組み立てました. ナノコイルPHDCは,H2Sを放出するバイオマテリアルの構造-機能関係を示し,ドクソルビシン心臓毒性の優位な緩和を示した.
科学分野:
- バイオマテリアル科学
- 超分子化学
- 薬剤化学
背景:
- 硫化水素 (H2S) は,治療的な可能性を持つ生物学的シグナルガスです.
- 制御されたH2S配送システムの開発は,治療用途において極めて重要です.
- ペプチドの自己組み立ては 機能的なナノマテリアルを作るためのプラットフォームを提供します
研究 の 目的:
- ペプチド-硫化水素ドナー結合体 (PHDC) を合成し,特徴づけること.
- PHDCの自己組み立て行動とH2S放出運動を調査する.
- ドクソルビシンによる心臓毒性の軽減におけるPHDCの治療効果を評価する.
主な方法:
- S-アロイルチオキシメス (SATOs) で機能化されたグルタミン酸とライシン残基を含む3つの構成同位体PHDCの合成.
- 水溶液中の異なる形状 (ナノリボンとナノコイル) に自己組み立てのPHDCの特徴.
- H2S放出率の評価と形態学とSATO分解への依存
- 異なるPHDC形態によるドクソルビシンの心臓毒性緩和のインビトロ評価
主要な成果:
- 2つのナノリボンと1つのナノコイルで自己組み立てました
- H2Sの放出率は形状によって変化し,ナノコイルは複雑な放出運動を示した.
- ナノコイル形成型PHDCは,ドクソルビシンの心臓毒性を著しく軽減し,ナノリボン同位体と従来のH2Sドナーを上回った.
結論:
- PHDCは,調節可能なH2S放出で様々なナノ構造に自己組み立てられるように設計できます.
- 形態学は,PHDCのH2S放出プロファイルと治療効果において重要な役割を果たします.
- この研究は,潜在的な治療用途を持つ先進的なH2S放出バイオマテリアルの開発のための新しい戦略を提示しています.
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