Hepatocellular chimeraplasty
    3.
    发明授权
    Hepatocellular chimeraplasty 失效
    肝细胞嵌合成像

    公开(公告)号:US06524613B1

    公开(公告)日:2003-02-25

    申请号:US09108006

    申请日:1998-06-30

    IPC分类号: A61K9127

    摘要: The present invention concerns compositions and methods for the introduction of specific genetic changes in endogenous genes of the cells of an animal. The genetic changes are effected by oligonucleotides or oligonucleotide derivatives and analogs, which are generally less than about 100 nucleotides in length. The invention provides for macromolecular carriers, optionally incorporating ligands for clathrin coated pit receptors. In one embodiment the ligand is a lactose or galactose and the genetic changes are made in hepatocytes. By means of the invention up to 40% of the copies of a target gene have been changed in vitro. Repair of mutant genes having a Crigler-Najjar like phenotype and Hemophilia B phenotype were observed.

    摘要翻译: 本发明涉及用于在动物细胞的内源基因中引入特异性遗传变化的组合物和方法。 遗传变化由寡核苷酸或寡核苷酸衍生物和类似物(其长度通常小于约100个核苷酸)来实现。 本发明提供大分子载体,任选地引入用于网格蛋白涂覆的凹坑受体的配体。 在一个实施方案中,配体是乳糖或半乳糖,并且在肝细胞中产生遗传变化。 通过本发明,靶基因的多达40%的拷贝在体外已被改变。 观察到具有Crigler-Najjar样表型和血友病B表型的突变基因的修复。