Animal model for identifying agents that inhibit or enhance CTLA4 signaling
    1.
    发明授权
    Animal model for identifying agents that inhibit or enhance CTLA4 signaling 有权
    用于鉴定抑制或增强CTLA4信号传导的药物的动物模型

    公开(公告)号:US07161058B2

    公开(公告)日:2007-01-09

    申请号:US11052559

    申请日:2005-02-07

    IPC分类号: A01K67/027 A01K67/033

    摘要: The present invention relates to a non-human transgenic animal, particularly a knock in mouse, whose genome comprises a heterologous, chimeric CTLA4 gene. The chimeric CTLA4 gene comprises exon 2 of the human CTLA4 gene, exon 1 and exon 4 of the non-human animal, and exon 3 of the CTLA4 gene of the non-human animal, or preferably, exon 3 of the human CTLA4 gene. The invention also relates to methods by which the transgenic mice are used to screen for monoclonal antibodies or other molecules that enhance immunity to tumors and infectious agents by interacting with the human CTLA4 receptor. The transgenic mice of the present invention are also useful for screening for monoclonal antibodies or other molecules that inhibit autoimmunity and transplant rejection.

    摘要翻译: 本发明涉及非人转基因动物,特别是小鼠的敲除,其基因组包含异源的嵌合CTLA4基因。 嵌合CTLA4基因包含人CTLA4基因的外显子2,非人动物的外显子1和外显子4以及非人动物CTLA4基因的外显子3,或优选人CTLA4基因的外显子3。 本发明还涉及使用转基因小鼠筛选通过与人CTLA4受体相互作用增强对肿瘤和感染因子的免疫的单克隆抗体或其它分子的方法。 本发明的转基因小鼠也可用于筛选抑制自身免疫和移植排斥的单克隆抗体或其它分子。