Procedure for the generation of a high producer cell line for the expression of a recombinant anti-CD34 antibody
    5.
    发明授权
    Procedure for the generation of a high producer cell line for the expression of a recombinant anti-CD34 antibody 有权
    用于产生用于表达重组抗CD34抗体的高生产细胞系的方法

    公开(公告)号:US08399249B2

    公开(公告)日:2013-03-19

    申请号:US12389265

    申请日:2009-02-19

    CPC classification number: G01N33/6854 C07K16/2896 C07K2317/56

    Abstract: The present invention relates to cell capture assay for the selection of a high producer cell line expressing anti-CD34 antibodies that recognize the CD34 membrane-protein in the cell membrane. The monoclonal antibody secreted by the hybridoma cell line 9C5/9069 binds to human CD34 and is used to isolate stem cells. The DNA sequences encoding for the antibody heavy and light chain have been identified, isolated from the hybridoma cells and cloned into appropriate expression vectors. After co-transfection of the heavy and light chain genes into HEK293T or in CHO cells either conditioned medium or purified antibody were assessed for binding to CD34 protein located in the cell membrane in different cell capture assays. The binding of the antibody to CD34-positive cells could be shown with these assays for several cell lines.

    Abstract translation: 本发明涉及用于选择识别细胞膜中CD34膜蛋白的抗CD34抗体的高生产细胞系的细胞捕获测定。 由杂交瘤细胞系9C5 / 9069分泌的单克隆抗体与人CD34结合并用于分离干细胞。 已经鉴定了编码抗体重链和轻链的DNA序列,从杂交瘤细胞中分离并克隆到合适的表达载体中。 将重链和轻链基因共转染到HEK293T或CHO细胞中后,评估条件培养基或纯化抗体与不同细胞捕获试验中位于细胞膜中的CD34蛋白结合。 抗体与CD34阳性细胞的结合可以用几种细胞系的这些测定法显示出来。

    PROCEDURE FOR THE GENERATION OF A HIGH PRODUCER CELL LINE FOR THE EXPRESSION OF A RECOMBINANT ANTI-CD34 ANTIBODY
    8.
    发明申请
    PROCEDURE FOR THE GENERATION OF A HIGH PRODUCER CELL LINE FOR THE EXPRESSION OF A RECOMBINANT ANTI-CD34 ANTIBODY 有权
    用于表达重组抗CD34抗体的高产细胞系的产生方法

    公开(公告)号:US20090221003A1

    公开(公告)日:2009-09-03

    申请号:US12389265

    申请日:2009-02-19

    CPC classification number: G01N33/6854 C07K16/2896 C07K2317/56

    Abstract: The present invention relates to cell capture assay for the selection of a high producer cell line expressing anti-CD34 antibodies that recognize the CD34 membrane-protein in the cell membrane. The monoclonal antibody secreted by the hybridoma cell line 9C5/9069 binds to human CD34 and is used to isolate stem cells. The DNA sequences encoding for the antibody heavy and light chain have been identified, isolated from the hybridoma cells and cloned into appropriate expression vectors. After co-transfection of the heavy and light chain genes into HEK293T or in CHO cells either conditioned medium or purified antibody were assessed for binding to CD34 protein located in the cell membrane in different cell capture assays. The binding of the antibody to CD34-positive cells could be shown with these assays for several cell lines.

    Abstract translation: 本发明涉及用于选择识别细胞膜中CD34膜蛋白的抗CD34抗体的高生产细胞系的细胞捕获测定。 由杂交瘤细胞系9C5 / 9069分泌的单克隆抗体与人CD34结合并用于分离干细胞。 已经鉴定了编码抗体重链和轻链的DNA序列,从杂交瘤细胞中分离并克隆到合适的表达载体中。 将重链和轻链基因共转染到HEK293T或CHO细胞中后,评估条件培养基或纯化抗体与不同细胞捕获试验中位于细胞膜中的CD34蛋白结合。 抗体与CD34阳性细胞的结合可以用几种细胞系的这些测定法显示出来。

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