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公开(公告)号:US06986902B1
公开(公告)日:2006-01-17
申请号:US09674191
申请日:1999-04-27
申请人: Tao Chen , Yuehua He , Peter Cullis , Thomas Madden , Peter Scherrer , David Tirrell , Phalgun Joshi , Jung Soo Kim
发明人: Tao Chen , Yuehua He , Peter Cullis , Thomas Madden , Peter Scherrer , David Tirrell , Phalgun Joshi , Jung Soo Kim
IPC分类号: A61K9/127 , C08G63/48 , C08G67/02 , C08F265/08
CPC分类号: A61K9/1273 , C08F8/12 , C08F8/30 , C08F8/32 , C08F120/06 , C08F297/026
摘要: The present invention relates generally to the amphiphilic polyelectrolyte, poly(2-ethylacrylic acid) and covalently bonded lipids to generate Lipo-PEAA. These Lipo-PEAA are then used to make pH-sensitive liposomes which become unstable, permeable or fusogenic with certain pH changes. In addition, this invention generally describes methods for delivering therapeutic compounds and drugs to target cells by administering to a host the pH-sensitive liposomes of the present invention.
摘要翻译: 本发明一般涉及两亲性聚电解质,聚(2-乙基丙烯酸)和共价键合的脂质以产生Lipo-PEAA。 然后将这些Lipo-PEAA用于制备pH敏感的脂质体,其在某些pH变化下变得不稳定,可渗透或融合。 此外,本发明总体上描述了通过向宿主施用本发明的pH敏感脂质体来将治疗化合物和药物递送至靶细胞的方法。