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公开(公告)号:US20050123596A1
公开(公告)日:2005-06-09
申请号:US10948981
申请日:2004-09-23
申请人: Daniel Kohane , Daniel Anderson , Robert Langer , William Haining , Lee Nadler
发明人: Daniel Kohane , Daniel Anderson , Robert Langer , William Haining , Lee Nadler
IPC分类号: A61K9/00 , A61K9/127 , A61K9/14 , A61K9/16 , A61K9/50 , A61K9/51 , A61K39/00 , A61K48/00 , A61L27/18 , C12N5/08 , C12N15/87 , C12N15/88
CPC分类号: A61K9/1647 , A61K9/1617 , A61K9/1623 , A61K9/1658 , A61K9/5031 , A61K9/5153 , A61K9/5192
摘要: Microparticles that are designed to release their payload when exposed to acidic conditions are provided as a vehicle for drug delivery. Any therapeutic, diagnostic, or prophylatic agent may be encapsulated in a lipid-protein-sugar or polymeric matrix including a pH triggering agent to form pH triggerable microparticles. Preferably the diameter of the pH triggered microparticles ranges from 50 nm to 10 micrometers. The matrix of the particles may be prepared using any known lipid (e.g., DPPC), protein (e.g., albumin), or sugar (e.g., lactose). The matrix of the particles may also be prepared using any synthetic polymers such as polyesters. Methods of preparing and administering the particles are provided. Methods of immunization, transfection, and gene therapy are also provided by administering pH triggerable microparticles.
摘要翻译: 被设计为在暴露于酸性条件下释放其有效载荷的微粒被提供作为用于药物递送的载体。 任何治疗,诊断或预防剂可以包封在包含pH引发剂的脂质蛋白质糖或聚合物基质中以形成pH可触发的微粒。 优选地,pH触发的微粒的直径范围为50nm至10微米。 可以使用任何已知的脂质(例如DPPC),蛋白质(例如白蛋白)或糖(例如乳糖)来制备颗粒的基质。 颗粒的基质也可以使用任何合成聚合物如聚酯来制备。 提供了制备和施用颗粒的方法。 免疫,转染和基因治疗的方法也通过施用pH可触发的微粒来提供。