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PRINTナノ粒子からシリルエーテル前薬の組み込みと制御された放出
Matthew C Parrott1, Mathew Finniss, J Chris Luft
1Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, USA.
Journal of the American Chemical Society
|May 2, 2012
まとめ
化学療法薬を運ぶ新しいナノ粒子が開発されました. これらの薬剤投与システムは,長期間にわたって薬を放出するために正確に調整され,治療の有効性を高めることができます.
科学分野:
- バイオマテリアル科学 バイオマテリアル科学
- 薬物の配達 薬物の配達
- ナノテクノロジー ナノテクノロジー
背景:
- ジェムシタビンのような水溶性化学療法薬のための効果的な薬物投与システムを開発することは,重大な課題を提示します.
- 安定したナノ粒子の中に水性薬品をカプセル化するには,革新的なプロドラッグ戦略が必要です.
研究 の 目的:
- 薬物の制御された放出のための非対称双機能シリルエーテル (ABS) プロドラッグを合成し,特徴づけること.
- ゲムシタビンの投与のための調整可能なナノ粒子システムを開発する.
- 薬剤前薬物の構造が薬剤の放出運動と治療効果に及ぼす影響を調査する.
主な方法:
- ジェムシタビンの非対称双機能シリルエーテル (ABS) プロドラッグの合成.
- ABSプロドラッグを200 nm × 200 nmのナノ粒子に組み込むこと.
- 酸性条件下でのナノ粒子分解の評価.
- シリコン置換剤の異なる固体質量に基づいた薬物放出プロファイルと細胞内毒性の評価.
主要な成果:
- ゲムシタビンのABSプロドラッグを合成し,ナノ粒子に組み込みました.
- ナノ粒子が酸性条件下で分解し,原薬を放出することを実証しました.
- シリコン置換剤のステリック質量を変化させることで,薬物の放出速度を正確に制御することが示されました.
- 調節可能な薬物放出システムを確立し,ゲムシタビンを数時間,数日,または数ヶ月で投与することができます.
結論:
- ABSプロドラッグは,水溶性化学療法薬のカプセル化と投与のための実行可能な戦略を提供します.
- 開発されたナノ粒子は,制御された薬物放出のための調整可能なプラットフォームを提供し,細胞内毒性に影響を与えます.
- この新しいナノ粒子のシステムは,薬剤の放出期間を正確に制御することによって,化学療法レジメンを最適化するための約束を保持しています.
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