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    • 7. 发明授权
    • Liposome complexes for increased systemic delivery
    • 用于增加系统递送的脂质体复合物
    • US06770291B2
    • 2004-08-03
    • US09991028
    • 2001-11-20
    • Nancy Smyth-TempletonGeorge N. Pavlakis
    • Nancy Smyth-TempletonGeorge N. Pavlakis
    • A61K9127
    • C12N15/88A61K48/00
    • Highly efficient cationic liposomes have been developed as an improved delivery system for biologically-active reagents. A novel structure, the sandwich liposome, is formed and comprises one or more biologically active agents internalized between two bilomellar liposomes. This structure protects the incoming agent and accounts for the high efficiency of in vivo delivery and for the broad tissue distribution of the sandwich liposome complexes. These novel liposomes are also highly efficient carriers of nucleic acids. By using extruded DOTAP:cholesterol liposomes to form complexes with DNA encoding specific proteins, expression has been improved dramatically. Highest expression was achieved in the lung, while increased expression was detected in several organs and tissues.
    • 已经开发了高效的阳离子脂质体作为用于生物活性试剂的改进的递送系统。 形成了一种新颖的结构,即夹心脂质体,并且包含一种或多种在两个生物体脂质体之间内在的生物活性剂。 这种结构保护了进入的药剂并且考虑到体内递送的高效率和夹心脂质体复合物的广泛的组织分布。这些新的脂质体也是核酸的高效载体。 通过使用挤出的DOTAP:胆固醇脂质体与编码特定蛋白质的DNA形成复合物,表达显着改善。 在肺中达到最高表达,而在几个器官和组织中检测到表达增加。