[EN] IMPROVED CATIONIC LIPIDS AND METHODS FOR THE DELIVERY OF THERAPEUTIC AGENTS<br/>[FR] LIPIDES CATIONIQUES ET PROCÉDÉS AMÉLIORÉS POUR L'ADMINISTRATION D'AGENTS THÉRAPEUTIQUES
申请人:PROTIVA BIOTHERAPEUTICS INC
公开号:WO2011000106A1
公开(公告)日:2011-01-06
The present invention provides compositions and methods for the delivery of therapeutic agents to cells. In particular, these include novel cationic lipids and nucleic acid-lipid particles that provide efficient encapsulation of nucleic acids and efficient delivery of the encapsulated nucleic acid to cells in vivo. The compositions of the present invention are highly potent, thereby allowing effective knock-down of a specific target protein at relatively low doses. In addition, the compositions and methods of the present invention are less toxic and provide a greater therapeutic index compared to compositions and methods previously known in the art.
本发明提供了用于将治疗剂传递到细胞的组合物和方法。具体包括新型阳离子脂质和核酸-脂质颗粒,它们能够有效地封装核酸并将封装的核酸有效地传递到体内的细胞中。本发明的组合物具有很高的效力,因此可以在相对较低的剂量下有效地降低特定靶蛋白的表达。此外,本发明的组合物和方法与先前已知的组合物和方法相比,毒性较低,提供更高的治疗指数。