Fed batch culture method for protein secreting cells
    2.
    发明授权
    Fed batch culture method for protein secreting cells 失效
    用于蛋白质分泌细胞的分批培养方法

    公开(公告)号:US5443968A

    公开(公告)日:1995-08-22

    申请号:US170361

    申请日:1994-01-03

    摘要: In a process of production of a useful protein by culturing a human embryonal kidney cell-derived 293 strain which is introduced with a useful protein-expressing gene, it becomes possible to obtain a culture fluid containing the useful protein in a high concentration using an extremely small amount of the medium, by carrying out a fed-batch culture and adding a sugar or a sugar and a calcium in a specified stage of the culture.

    摘要翻译: PCT No.PCT / JP93 / 00586 Sec。 371日期1994年1月3日 102(e)日期1994年1月3日PCT 1993年4月30日PCT PCT。 公开号WO93 / 22448 日期:11月11日。在通过培养引入了有用的蛋白质表达基因的人胚肾细胞来源的293菌株生产有用蛋白质的过程中,可以获得含有有用蛋白质的培养液 通过进行补料分批培养并在培养的指定阶段加入糖或糖和钙,以高浓度使用极少量的培养基。

    Process for continuously culturing adherent animal cells
    5.
    发明授权
    Process for continuously culturing adherent animal cells 失效
    连续培养贴壁动物细胞的方法

    公开(公告)号:US5219752A

    公开(公告)日:1993-06-15

    申请号:US730386

    申请日:1991-07-15

    IPC分类号: C12N5/00 C12N5/08

    摘要: Adherent 293 human kidney cells are continuously cultured in suspension in serum-free medium. Fresh medium is fed into a culture vessel and spent medium is withdrawn from the vessel. The 293 cells are maintained in small aggregates in suspension at a density of at least 3.times.10.sup.6 cells/ml for 30 days. The formation of large cell clumps is prevented by maintaining the concentration of calcium in the serum-free medium at 0.002 mM to 0.3 mM.

    摘要翻译: 将粘附的293人肾细胞在悬浮液中连续培养于无血清培养基中。 将新鲜培养基加入到培养容器中,并从容器中取出废培养基。 将293细胞以至少3×10 6细胞/ ml的密度悬浮保持在悬浮液中的小聚集体30天。 通过将无血清培养基中的钙浓度维持在0.002mM至0.3mM来防止大细胞团的形成。