Design and self-assembly of siRNA-functionalized RNA nanoparticles for use in automated nanomedicine.

Design and self-assembly of siRNA-functionalized RNA nanoparticles for use in automated nanomedicine.
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用于自动纳米医学的siRNA官能化RNA纳米颗粒的设计和自组装。

DOI:
10.1038/nprot.2011.418
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发表时间:
2011-12-01
期刊:
影响因子:
14.8
通讯作者:
--
中科院分区:
生物学1区
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单个基因可以用siRNA靶向。核酸纳米颗粒(NP)的使用是用于以有组织和可编程的方式递送特定siRNA的组合的方便方法。我们提出了三种组装协议,以产生两种不同类型的RNA自组装功能的纳米粒子使用的过程是完全自动化的。这些NP基于两种互补的纳米支架设计(纳米环和纳米立方体)进行工程化,其用作多个siRNA的载体。通过用siRNA双链体延伸多达六条支架链来官能化NP。组装方案产生功能化的RNA NP,我们表明,它们在体外与人重组Dicer相互作用,产生siRNA。我们的设计策略允许快速,经济和易于控制的无内毒素的治疗性RNA NP的生产,适用于临床前开发。
Individual genes can be targeted with siRNAs. The use of nucleic acid nanoparticles (NPs) is a convenient method for delivering combinations of specific siRNAs in an organized and programmable manner. We present three assembly protocols to produce two different types of RNA self-assembling functional NPs using processes that are fully automatable. These NPs are engineered based on two complementary nanoscaffold designs (nanoring and nanocube), which serve as carriers of multiple siRNAs. The NPs are functionalized by the extension of up to six scaffold strands with siRNA duplexes. The assembly protocols yield functionalized RNA NPs, and we show that they interact in vitro with human recombinant Dicer to produce siRNAs. Our design strategies allow for fast, economical and easily controlled production of endotoxin-free therapeutic RNA NPs that are suitable for preclinical development.
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