Transgenic non-human animals capable of producing heterologous antibodies
    7.
    发明授权
    Transgenic non-human animals capable of producing heterologous antibodies 失效
    能够产生异源抗体的转基因非人动物

    公开(公告)号:US5874299A

    公开(公告)日:1999-02-23

    申请号:US800353

    申请日:1997-02-14

    摘要: The invention relates to transgenic non-human animals capable of producing heterologous antibodies, i.e., antibodies encoded by immunoglobulin heavy and light chain genes not normally found in the genome of that species of non-human animal. In one aspect of the invention, transgenes encoding unrearranged heterologous human immunoglobulin heavy and light chains are introduced into a non-human animal thereby forming a transgenic animal capable of producing antibodies encoded by human immunoglobulin genes. Such heterologous human antibodies are produced in B-cells which are thereafter immortalized, e.g., by fusing with an immortalizing cell line such as a myeloma or by manipulating such B-cells by other techniques to perpetuate a cell line capable of producing a monoclonal heterologous antibody. The invention also relates to heavy and light chain immunoglobulin transgenes for making such transgenic non-human animals as well as methods and vectors for disrupting endogenous immunoglobulin loci in the transgenic animal. The invention also includes methods to generate a synthetic immunoglobulin variable region gene segment repertoire used in transgene construction and methods to induce heterologous antibody production using animals containing heterologous rearranged or unrearranged heavy and light chain immunoglobulin transgenes.

    摘要翻译: 本发明涉及能够产生异源抗体的转基因非人动物,即由非人动物种类的基因组中通常不存在的免疫球蛋白重链和轻链基因编码的抗体。 在本发明的一个方面,将编码未经修饰的异源人免疫球蛋白重链和轻链的转基因导入非人动物中,从而形成能产生人免疫球蛋白基因编码抗体的转基因动物。 这样的异源人抗体是在B细胞中产生的,其后被永生化,例如通过与永生化细胞系如骨髓瘤融合,或者通过其它技术操纵这样的B细胞,使能够产生单克隆异源抗体的细胞系 。 本发明还涉及用于制备这种转基因非人动物的重链和轻链免疫球蛋白转基因以及用于破坏转基因动物内源性免疫球蛋白基因座的方法和载体。 本发明还包括产生用于转基因构建的合成免疫球蛋白可变区基因片段谱的方法和使用含有异源重排或未重排的重链和轻链免疫球蛋白转基因的动物诱导异源抗体产生的方法。