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    • 6. 发明授权
    • Chitosan based polymer conjugate and a method for producing the same
    • 壳聚糖基聚合物共轭物及其制备方法
    • US08431543B2
    • 2013-04-30
    • US12522215
    • 2008-01-07
    • Myung-Ok ParkYu-Kyoung OhSang Myoung NohSung Sik BangMyung Suk Kim
    • Myung-Ok ParkYu-Kyoung OhSang Myoung NohSung Sik BangMyung Suk Kim
    • A61K48/00A61P43/00C12Q1/68
    • C12N15/87A61K9/5161A61K47/36
    • The present invention relates to a conjugate of chitosan and polyamine polymer that is useful for transferring a desired gene medicine into cells, and a method for preparing the same. In particular, the present invention relates to a double conjugate that is prepared by 1 in king poly-L-arginine to low molecular weight chitosan or triple conjugate that is prepared by additionally linking polyethylene glycol (PEG) to the double conjugate, and a method for preparing the same. The chitosan based cationic polymer conjugate of the present invention forms a complex with negatively charged gene medicine such as plasmid DNA and small interfering RNA to efficiently transfer the desired gene medicine into cells with low cytotoxicity. Accordingly, the conjugate can be used as an effective delivery system for in vivo administration of gene medicine.
    • 本发明涉及可用于将期望的基因药物转移到细胞中的壳聚糖和多胺聚合物的缀合物及其制备方法。 特别地,本发明涉及通过将聚乙二醇(PEG)与双重缀合物另外连接而制备的由聚异丁酰胺聚合物1中的1与低分子量壳聚糖或三重缀合物制备的双重缀合物, 为准备相同。 本发明的基于壳聚糖的阳离子聚合物缀合物与带负电荷的基因药物如质粒DNA和小干扰RNA形成复合物,以有效地将期望的基因药物转移到具有低细胞毒性的细胞中。 因此,缀合物可以用作体内施用基因药物的有效递送系统。
    • 10. 发明申请
    • NUCLEIC-ACID PHARMACEUTICAL COMPOSITION FOR CANCER THERAPY
    • 用于癌症治疗的核酸药物组合物
    • US20110160282A1
    • 2011-06-30
    • US12735809
    • 2009-02-18
    • Yu-Kyoung OhGayong ShimSang-Hee Kim
    • Yu-Kyoung OhGayong ShimSang-Hee Kim
    • A61K31/713C07H21/00A61P35/00
    • C12N15/1135C12N2310/14C12N2310/315
    • The present invention provides at least one siRNA (small interfering RNA) which inhibits the expression of Mcl-1 within the cell, and which is selected from siRNA having SEQ. ID. NO. 1 sense sequence and SEQ. ID. NO. 2 antisense sequence, siRNA having SEQ. ID. NO. 3 sense sequence and SEQ. ID. NO. 4 antisense sequence, and siRNA having SEQ. ID. NO. 5 sense sequence and SEQ. ID. NO. 6 antisense sequence. The invention also provides a nucleic-acid pharmaceutical composition for cancer therapy comprising the same. The siRNA of the present invention kills cancer cells by inhibiting the expression of Mcl-1 which is commonly expressed in cancer cells by means of RNA-mediated interference (RNAi), and the composition of the present invention can be used as an outstanding anti-cancer preparation.
    • 本发明提供了抑制细胞内Mcl-1表达的至少一种siRNA(小干扰RNA),其选自具有SEQ ID NO:1的siRNA。 ID。 没有。 1有义序列和SEQ。 ID。 没有。 2反义序列,具有SEQ ID NO: ID。 没有。 3有义序列和SEQ。 ID。 没有。 4反义序列,和具有SEQ ID NO: ID。 没有。 5有义序列和SEQ。 ID。 没有。 6反义序列。 本发明还提供了包含其的癌症治疗用核酸药物组合物。 本发明的siRNA通过抑制通过RNA介导的干扰(RNAi)在癌细胞中通常表达的Mcl-1的表达来杀死癌细胞,本发明的组合物可以用作突出的抗 - 癌症准备。