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ロスマリン酸ベースの点鼻薬製剤:ナノエマルションと固体脂質ナノ粒子の比較研究
Maria Gioia Fabiano1, Francesca Romana Stacchini1, Giulia Tonelli2
1Department of Drug Chemistry and Technology, Sapienza University of Rome, Rome, Italy.
International journal of pharmaceutics
|February 6, 2026
まとめ
固体脂質ナノ粒子(SLN)は、アレルギー性鼻炎に対するロスマリン酸(RA)の鼻腔内送達に効果的です。このナノキャリアはRAの溶解性と保持力を向上させ、上気道の炎症に対する有望な治療戦略を提供します。
科学分野:
- 薬科学
- ナノテクノロジー
- 薬物送達
背景:
- ロスマリン酸(RA)は治療の可能性を秘めていますが、溶解性が低く、急速にクリアランスされるため、臨床使用には限界があります。
- RAの鼻腔内投与は、その物理化学的不安定性と鼻粘膜での滞留時間の短さによって妨げられています。
研究 の 目的:
- ロスマリン酸(RA)の鼻腔内送達を改善するためのナノキャリア、特に固体脂質ナノ粒子(SLN)および水中油型ナノエマルション(O/W NE)の開発と特性評価。
- アレルギー性鼻炎の効果的な治療のためのRAの溶解性、安定性、およびムコ付着性の強化。
主な方法:
- RA負荷SLNおよびキトサンコーティングO/W NEの設計と調製。
- サイズ、ゼータ電位、安定性、原子間力顕微鏡(AFM)、および小角X線散乱(SAXS)を含む物理化学的特性評価。
- ムコ付着性、点鼻薬製剤への適合性、および生物活性(抗酸化、抗炎症)の評価。
主要な成果:
- 両方のSLNおよびNEは、RAを分解から保護し、持続的な放出を提供しました。
- キトサンコーティングされたNEは、ムコ付着性を強化し、鼻腔内保持時間を増加させました。
- SLNベースの点鼻薬は、良好な物理化学的およびムコ付着特性を示し、RAの生物活性を維持し、HMGB1などの炎症マーカーを減少させました。
結論:
- 固体脂質ナノ粒子(SLN)は、ロスマリン酸(RA)の非侵襲的な鼻腔内送達のための有望なキャリアです。
- SLNベースの点鼻薬製剤は、アレルギー性鼻炎およびその他の上気道炎症性疾患の治療のための効果的な戦略を提供します。
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