特殊(脂质)递送:通过对脂质进行大量头基修饰,研究了可电离脂质 p K a在脂质纳米粒子体内递送 siRNA 中的作用。脂质P的的紧密相关ķ一个 值和鼠标FVII基因(FVII ED的沉默50)被发现,具有最佳p ķ一个范围的6.2-6.5(见图)。本研究中最有效的阳离子脂质的 ED 50水平在小鼠中约为 0.005 mg kg -1,在非人类灵长类动物中低于 0.03 mg kg -1。
COMPOSITIONS AND METHODS FOR SILENCING APOLIPOPROTEIN B
申请人:Heyes James
公开号:US20130123339A1
公开(公告)日:2013-05-16
The present invention provides compositions and methods for the delivery of interfering RNAs such as siRNAs that silence APOB expression in cells such as liver cells. In particular, the nucleic acid-lipid particles provide efficient encapsulation of nucleic acids and efficient delivery of the encapsulated nucleic acid to cells such as liver cells in vivo. The compositions of the present invention are highly potent, thereby allowing effective knock-down of APOB 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.
NOVEL LIPIDS AND COMPOSITIONS FOR THE DELIVERY OF THERAPEUTICS
申请人:MANOHARAN Muthiah
公开号:US20120095075A1
公开(公告)日:2012-04-19
The present invention provides lipids that are advantageously used in lipid particles for the in vivo delivery of therapeutic agents to cells. In particular, the invention provides lipids having the following structure:
本发明提供了有利于用于体内向细胞传递治疗剂的脂质。具体而言,本发明提供具有以下结构的脂质:
Compositions and methods for silencing apolipoprotein B
申请人:Heyes James
公开号:US08865675B2
公开(公告)日:2014-10-21
The present invention provides compositions and methods for the delivery of interfering RNAs such as siRNAs that silence APOB expression in cells such as liver cells. In particular, the nucleic acid-lipid particles provide efficient encapsulation of nucleic acids and efficient delivery of the encapsulated nucleic acid to cells such as liver cells in vivo. The compositions of the present invention are highly potent, thereby allowing effective knock-down of APOB 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.
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.