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Active Intracellular Delivery of a Cas9/sgRNA Complex Using Ultrasound‐Propelled Nanomotors 下载免费PDF全文
Malthe Hansen‐Bruhn Dr. Berta Esteban‐Fernández de Ávila Dr. Mara Beltrán‐Gastélum Prof. Jing Zhao Dr. Doris E. Ramírez‐Herrera Pavimol Angsantikul Prof. Kurt Vesterager Gothelf Prof. Liangfang Zhang Prof. Joseph Wang 《Angewandte Chemie (International ed. in English)》2018,57(10):2657-2661
Direct and rapid intracellular delivery of a functional Cas9/sgRNA complex using ultrasound‐powered nanomotors is reported. The Cas9/sgRNA complex is loaded onto the nanomotor surface through a reversible disulfide linkage. A 5 min ultrasound treatment enables the Cas9/sgRNA‐loaded nanomotors to directly penetrate through the plasma membrane of GFP‐expressing B16F10 cells. The Cas9/sgRNA is released inside the cells to achieve highly effective GFP gene knockout. The acoustic Cas9/sgRNA‐loaded nanomotors display more than 80 % GFP knockout within 2 h of cell incubation compared to 30 % knockout using static nanowires. More impressively, the nanomotors enable highly efficient knockout with just 0.6 nm of the Cas9/sgRNA complex. This nanomotor‐based intracellular delivery method thus offers an attractive route to overcome physiological barriers for intracellular delivery of functional proteins and RNAs, thus indicating considerable promise for highly efficient therapeutic applications. 相似文献
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Inside Cover: Active Intracellular Delivery of a Cas9/sgRNA Complex Using Ultrasound‐Propelled Nanomotors (Angew. Chem. Int. Ed. 10/2018) 下载免费PDF全文
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Yue Zhang Yijie Chen Christopher Lo Jia Zhuang Pavimol Angsantikul Qiangzhe Zhang Xiaoli Wei Zhidong Zhou Marygorret Obonyo Ronnie H. Fang Weiwei Gao Liangfang Zhang 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(33):11526-11530
Anti‐adhesion therapies interfere with the bacterial adhesion to the host and thus avoid direct disruption of bacterial cycles for killing, which may alleviate resistance development. Herein, an anti‐adhesion nanomedicine platform is made by wrapping synthetic polymeric cores with bacterial outer membranes. The resulting bacterium‐mimicking nanoparticles (denoted “OM‐NPs”) compete with source bacteria for binding to the host. The “top‐down” fabrication of OM‐NPs avoids the identification of the adhesins and bypasses the design of agonists targeting these adhesins. In this study, OM‐NPs are made with the membrane of Helicobacter pylori and shown to bind with gastric epithelial cells (AGS cells). Treatment of AGS cells with OM‐NPs reduces H. pylori adhesion and such anti‐adhesion efficacy is dependent on OM‐NP concentration and its dosing sequence. 相似文献
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