Rational design of cationic lipids for siRNA delivery

被引:1244
|
作者
Semple, Sean C. [1 ]
Akinc, Akin [2 ]
Chen, Jianxin [1 ]
Sandhu, Ammen P. [1 ]
Mui, Barbara L. [1 ]
Cho, Connie K. [1 ]
Sah, Dinah W. Y. [2 ]
Stebbing, Derrick [1 ]
Crosley, Erin J. [1 ]
Yaworski, Ed [1 ]
Hafez, Ismail M. [3 ]
Dorkin, J. Robert [2 ]
Qin, June [2 ]
Lam, Kieu [1 ]
Rajeev, Kallanthottathil G. [2 ]
Wong, Kim F. [3 ]
Jeffs, Lloyd B. [1 ]
Nechev, Lubomir [2 ]
Eisenhardt, Merete L. [1 ]
Jayaraman, Muthusamy [2 ]
Kazem, Mikameh [3 ]
Maier, Martin A. [2 ]
Srinivasulu, Masuna [4 ]
Weinstein, Michael J. [2 ]
Chen, Qingmin [2 ]
Alvarez, Rene [2 ]
Barros, Scott A. [2 ]
De, Soma [2 ]
Klimuk, Sandra K. [1 ]
Borland, Todd [2 ]
Kosovrasti, Verbena [2 ]
Cantley, William L. [2 ]
Tam, Ying K. [1 ]
Manoharan, Muthiah [2 ]
Ciufolini, Marco A. [4 ]
Tracy, Mark A. [2 ]
de Fougerolles, Antonin [2 ]
MacLachlan, Ian [1 ]
Cullis, Pieter R. [3 ]
Madden, Thomas D. [1 ]
Hope, Michael J. [1 ]
机构
[1] Tekmira Pharmaceut, Burnaby, BC, Canada
[2] Alnylam Pharmaceut, Cambridge, MA USA
[3] Univ British Columbia, Dept Biochem & Mol Biol, Vancouver, BC V5Z 1M9, Canada
[4] Univ British Columbia, Dept Chem, Vancouver, BC, Canada
关键词
INTRACELLULAR DELIVERY; IN-VIVO; NONHUMAN-PRIMATES; MECHANISM; LIPOSOMES; DNA; ENCAPSULATION; THERAPEUTICS; BEHAVIOR; RELEASE;
D O I
10.1038/nbt.1602
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
We adopted a rational approach to design cationic lipids for use in formulations to deliver small interfering RNA (siRNA). Starting with the ionizable cationic lipid 1,2-dilinoleyloxy-3-dimethylaminopropane (DLinDMA), a key lipid component of stable nucleic acid lipid particles (SNALP) as a benchmark, we used the proposed in vivo mechanism of action of ionizable cationic lipids to guide the design of DLinDMA-based lipids with superior delivery capacity. The best-performing lipid recovered after screening (DLin-KC2-DMA) was formulated and characterized in SNALP and demonstrated to have in vivo activity at siRNA doses as low as 0.01 mg/kg in rodents and 0.1 mg/kg in nonhuman primates. To our knowledge, this represents a substantial improvement over previous reports of in vivo endogenous hepatic gene silencing.
引用
收藏
页码:172 / U18
页数:7
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