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    • 77. 发明申请
    • GENETICALLY MODIFIED MOUSE MODEL FOR HUMAN HEPATOCYTE XENOTRANSPLANTATION
    • 遗传修饰的小鼠肝细胞异种移植模型
    • WO2018081561A1
    • 2018-05-03
    • PCT/US2017/058758
    • 2017-10-27
    • THE JACKSON LABORATORY
    • SHULTZ, Leonard, D.
    • C07K14/81C12N5/071C12N15/113C12N15/86
    • One or more embodiments of the present invention include an immunodeficient mouse genetically modified to include a gene encoding a PiZ variant (Glu342Lys) of human α-1 antitrypsin (AAT), wherein the mouse expresses the PiZ variant of human α-1 antitrypsin (Z-AAT), and has a reduced number of mouse hepatocytes compared to an immunodeficient mouse of the same type which does not express Z-AAT. The immunodeficient mouse genetically modified to include a gene encoding a PiZ variant of human AAT can be a genetically modified NSG, NRG or NOG mouse. The immunodeficient mouse may further include xenogeneic hepatocytes, such as human hepatocytes. Putative treatments of human liver disease can be assessed in mice provided according to aspects of the present disclosure.
    • 本发明的一个或多个实施方案包括经遗传修饰以包含编码人α-1抗胰蛋白酶(AAT)的PiZ变体(Glu342Lys)的基因的免疫缺陷小鼠,其中所述小鼠表达PiZ变体 的人α-1抗胰蛋白酶(Z-AAT),并且与不表达Z-AAT的相同类型的免疫缺陷小鼠相比,小鼠肝细胞的数量减少。 遗传修饰以包括编码人AAT的PiZ变体的基因的免疫缺陷小鼠可以是遗传修饰的NSG,NRG或NOG小鼠。 免疫缺陷小鼠还可以包含异种肝细胞,如人肝细胞。 可以根据本公开内容的方面提供的小鼠中评估人肝脏疾病的推定治疗。