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    • 5. 发明申请
    • EFFICIENT NUCLEAR DELIVERY OF ANTISENSE OLIGONUCLEOTIDES
    • 有效的核交付反义寡核苷酸
    • WO2008060557A3
    • 2008-11-27
    • PCT/US2007023894
    • 2007-11-14
    • UNIV PENNSYLVANIATEWARI MANORAMAKIM YOUNGHOONDISCHER DENNIS
    • TEWARI MANORAMAKIM YOUNGHOONDISCHER DENNIS
    • A61K48/00
    • C12N15/88A61K9/1273A61K48/00C12N15/111C12N2310/11C12N2310/14C12N2310/315C12N2310/321C12N2320/32C12N2310/3521
    • Provided is a biocompatible polyethylene oxide (PEO)-based polymersome system for the delivery of oligonucleotides, including antisense RNA, siRNA and RNAi, to a cell or tissue target, and method of use therefore, wherein the method comprises encapsulating the oligonucleotide in a biodegradable neutral, nano-transforming polymersome delivery vehicle and delivering the encapsulated oligonucleotide to the cell or tissue target in vitro or in vivo., particularly for treating a disease, such cancer or cellular hyperproliferation. The degradable polymersome, and the oligonucleotides stably encapsulated therein are taken up passively by cells and delivered into endolysosomes, wherein the polymersomes decompose at a known rate at a known pH, thereby releasing encapsulated oligonucleotides in a controlled manner within the cell and facilitating delivery of antisense oligonucleotide or siRNA or RNAi into the nucleus of the cell target.
    • 提供了一种用于向细胞或组织靶标递送包括反义RNA,siRNA和RNAi的寡核苷酸的生物相容性聚环氧乙烷(PEO)基聚合物体系,以及因此使用的方法,其中所述方法包括将寡核苷酸包封在可生物降解 中性的纳米转化聚合物组递送载体,并将包封的寡核苷酸在体外或体内递送至细胞或组织靶,特别是用于治疗疾病,例如癌症或细胞过度增殖。 稳定包被的可降解聚合物和寡核苷酸被细胞无源地吸收并递送到内溶体中,其中聚合物囊泡以已知的速率以已知的pH分解,从而以受控的方式在细胞内释放包封的寡核苷酸并促进反义 寡核苷酸或siRNA或RNAi进入细胞靶的细胞核。