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仪器网/ 行业应用/ 解决方案/ 通过Biotage Isolera快速纯化液相制备色谱帮助进行对传

通过Biotage Isolera快速纯化液相制备色谱帮助进行对传

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Exploitation of the RNA interference (RNAi) pathway offers the promise of new and effective therapies for a wide variety of diseases. Clinical development of new drugs based on this platform technology is still limited, however, by a lack of safe and efficient delivery systems. Here we report the development of a class of structurally versatile cationic lipopolyamines designed specifically for delivery of siRNA which show high levels of target transcript knockdown in a range of cell types in vitro. A primary benefit of these lipids is the ease with which they may be covalently modified by the addition of functional molecules. For in vivo applications one of the core lipids (Staramine) was modified with methoxypolyethylene glycols (mPEGs) of varying lengths. Upon systemic administration, PEGylated Staramine nanoparticles containing siRNA targeting the caveolin-1 (Cav-1) transcript caused a reduction of the Cav-1 transcript of up to 60%, depending on the mPEG length, specifically in lung tissue after 48 h compared to treatment with non-silencing siRNA.In addition, modification with mPEG reduced toxicity associated with intravenous administration. The ability to produce a high level of target gene knockdown in the lung with minimal toxicity demonstrates the potential of these lipopolyamines for use in developing RNAi the rapeutics for pulmonary disease. Biotage 快速纯化制备液相色谱 Flash Isolera one Biotage 快速纯化制备液相色谱 Flash Isolera Prime Biotage 快速纯化制备液相色谱 Flash Isolera LS
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