CHIMERIC FACTOR VIII POLYPEPTIDES AND USES THEREOF
    5.
    发明申请
    CHIMERIC FACTOR VIII POLYPEPTIDES AND USES THEREOF 审中-公开
    重要因素VIII聚合物及其用途

    公开(公告)号:US20150023959A1

    公开(公告)日:2015-01-22

    申请号:US14371948

    申请日:2013-01-12

    IPC分类号: C07K14/755 C07K16/00

    摘要: The present invention provides a VWF fragment comprising the D′ domain and D3 domain of VWF, a chimeric protein comprising the VWF fragment and a heterologous moiety, or a chimeric protein comprising the VWF fragment and a FVIII protein and methods of using the same. A polypeptide chain comprising a VWF fragment of the invention binds to or is associated with a polypeptide chain comprising a FVIII protein and the polypeptide chain comprising the VWF fragment can prevent or inhibit binding of endogenous VWF to the FVIII protein. By preventing or inhibiting binding of endogenous VWF to the FVIII, which is a half-life limiting factor for FVIII, the VWF fragment can induce extension of half-life of the FVIII protein. The invention also includes nucleotides, vectors, host cells, methods of using the VWF fragment, or the chimeric proteins.

    摘要翻译: 本发明提供了包含VWF的D'结构域和D3结构域的VWF片段,包含VWF片段和异源部分的嵌合蛋白质,或包含VWF片段和FVIII蛋白质的嵌合蛋白质及其使用方法。 包含本发明的VWF片段的多肽链与包含FVIII蛋白的多肽链结合或相关联,并且包含VWF片段的多肽链可以预防或抑制内源性VWF与FVIII蛋白的结合。 通过预防或抑制内源性VWF与作为FVIII的半衰期限制因子的FVIII的结合,VWF片段可诱导FVIII蛋白的半衰期延长。 本发明还包括核苷酸,载体,宿主细胞,使用VWF片段或嵌合蛋白的方法。