Anionic polymer, polyion complex and ternary polymer composite using anionic polymer, and pharmaceutical composition
    8.
    发明授权
    Anionic polymer, polyion complex and ternary polymer composite using anionic polymer, and pharmaceutical composition 有权
    阴离子聚合物,聚离子络合物和三元聚合物复合材料使用阴离子聚合物,以及药物组成

    公开(公告)号:US08450282B2

    公开(公告)日:2013-05-28

    申请号:US13386554

    申请日:2010-07-23

    摘要: There are provided an anionic polymer, a polyion complex, and a ternary polymer composite, each of which is stable in a biological environment and is capable of realizing small RNA delivery without causing any undesired immune response. An anionic polymer according to an embodiment of the invention includes: a main chain which includes repeating units having carboxyl groups; and a side chain which is linked with part of the carboxyl groups in the main chain and is represented by the following formula: -A-B—X where: A represents a residue having one or more aminoethyl bonds; B represents an in vivo cleavable bond; and X represents a small RNA. A polyion complex according to an embodiment of the invention includes the anionic polymer as described above and a cationic polymer. A ternary polymer composite according to an embodiment of the invention includes the polyion complex as described above and a charge conversional polymer.

    摘要翻译: 提供阴离子聚合物,聚离子络合物和三元聚合物复合材料,其中每一种在生物环境中都是稳定的并且能够实现小的RNA递送而不引起任何不期望的免疫应答。 根据本发明实施方案的阴离子聚合物包括:主链,其包含具有羧基的重复单元; 和与主链中部分羧基连接并由下式表示的侧链:-A-B-X其中:A表示具有一个或多个氨基乙基的残基; B代表体内可剪切键; X表示小RNA。 根据本发明实施方案的聚离子络合物包括如上所述的阴离子聚合物和阳离子聚合物。 根据本发明实施方案的三元聚合物复合物包括如上所述的聚离子络合物和电荷转移聚合物。