身体学的に制御された放出は,in situで形成されるリポソーマの貯蔵庫から発生します
Remo Eugster1, Simone Aleandri1, Julia Blandine Bassila2
1Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland.
まとめ
この研究は,制御された薬物放出のための新しい熱反応性脂質体貯蔵 (TILD) を導入します. TILDは,最大4日間の持続的な治療薬レベルを提供し,治療遵守の課題に取り組んでいます.
科学分野:
- バイオマテリアル科学 バイオマテリアル科学
- 薬物の配送システムです.
- 薬理学 薬理学とは
背景:
- 治療の順守が悪いことは,世界的な健康問題であり,罹病率,死亡率,医療費が増加しています.
- 制御放出デポは,特に頻繁な投与が困難である場合,患者の服従を改善するための有望な戦略を提供します.
- 既存の長時間作用の注射製剤は,注射能力の低下,薬効開始の遅延,複雑な製造などの課題に直面しています.
研究 の 目的:
- 膜関連薬剤の放出を調節するための熱反応性,in situ形成性リポソーマルデポ (TILD) を開発し,特徴づけること.
- 皮膚下投与後の持続的な薬物投与のためのTILDのインビヴォ性能を評価する.
- 合理的なシステム設計と生理学的なシグナル応答性の検証のために分子シミュレーションを活用する.
主な方法:
- 熱反応性脂肪体貯蔵システムの設計と合成.
- ブプレノルフィンをモデル鎮痛薬として放出研究に使用する.
- システム設計を導き,行動を予測するために分子シミュレーションを使用します.
- 反応性を検証するために,構造的およびコロイド的特徴付けを行う.
- ネズミとビーグル犬の体内実験を行い,デポの形成,薬剤濃度,および薬学動態を評価する.
主要な成果:
- TILDは,皮下二価カチオンと体温に対する反応として,調節可能な薬物放出を示した.
- 分子シミュレーションにより,熱反応性脂質体貯蔵庫の設計に成功しました.
- In vivo試験では,ラットと犬において,安定したデポ形成が示され,治療用ブプレノルフィンの濃度が最大4日間維持された.
- 薬物動力学的研究では,ラットにおける長期の鎮痛が確認され,システムの有効性が確認されました.
結論:
- 熱反応性,インサイト形成性リポソマルデポ (TILD) は,持続的な皮下薬物投与のための実行可能なプラットフォームです.
- TILDは,生理学的シグナルに基づいて薬物の放出を効果的に調節し,治療の遵守を改善する可能性を秘めています.
- この新しい製剤は,膜関連薬の長期作用の投与の可能性を示し,現在の注射療法における限界に対処しています.
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