Site-directed dual pegylation of proteins for improved bioactivity and biocompatibility
    8.
    发明授权
    Site-directed dual pegylation of proteins for improved bioactivity and biocompatibility 有权
    用于改善生物活性和生物相容性的蛋白质的定点双重聚乙二醇化

    公开(公告)号:US06420339B1

    公开(公告)日:2002-07-16

    申请号:US09172644

    申请日:1998-10-14

    IPC分类号: A61K3818

    CPC分类号: A61K47/60 Y10S514/909

    摘要: The present invention relates generally to the chemical modification of biologically active agents. More, specifically, the invention relates to a novel approach to engineer, through mutagenesis and site-directed chemical conjugation, specific, well-defined dualPEGylated-protein bioconjugates, consisting of two polyethylene glycol (PEG) macromolecules chemically conjugated to the protein at two specifically defined amino acid residues. The described dualPEGylated-protein bioconjugates show substantially improved bioefficacy and biocompatibility.

    摘要翻译: 本发明一般涉及生物活性剂的化学修饰。 更具体地,本发明涉及通过诱变和定点化学共轭技术来设计特异性,明确定义的双重PEG化蛋白质生物共轭物的新方法,其由两个特异性地与蛋白质化学缀合的两个聚乙二醇(PEG)大分子组成 定义的氨基酸残基。 所描述的双重PEG化蛋白质生物共轭体显示出显着改善的生物功效和生物相容性。