Bioreactor for cultivating tissue cells
    1.
    发明申请
    Bioreactor for cultivating tissue cells 审中-公开
    用于培养组织细胞的生物反应器

    公开(公告)号:US20060223175A1

    公开(公告)日:2006-10-05

    申请号:US11176411

    申请日:2005-07-07

    IPC分类号: C12M3/00

    CPC分类号: C12M35/04 C12M41/12

    摘要: A bioreactor for cultivating tissue cells comprises a vessel containing a gas phase and a liquid phase therein, at least a substrate on which the tissue cells are attached, and a movable shaft to which the substrate is fixed. The movable shaft carries the substrate into and out of the gas and liquid phases so as to apply shear stress to the tissue cells.

    摘要翻译: 用于培养组织细胞的生物反应器包括其中包含气相和液相的容器,至少其上附着有组织细胞的基底和固定有基底的活动轴。 可移动轴将衬底进入和离开气相和液相,以向组织细胞施加剪切应力。

    Method for Determining Transduction Efficiency and Virus Dosage of Baculovirus
    3.
    发明申请
    Method for Determining Transduction Efficiency and Virus Dosage of Baculovirus 审中-公开
    确定杆状病毒的转导效率和病毒剂量的方法

    公开(公告)号:US20100055671A1

    公开(公告)日:2010-03-04

    申请号:US12203436

    申请日:2008-09-03

    IPC分类号: C12Q1/70

    CPC分类号: C12Q1/6897

    摘要: A method for determining transduction efficiency of baculovirus includes: providing a recombinant baculovirus, in which the recombinant baculovirus includes an inducible promoter and a reporter gene positioned downstream the inducible promoter; adding the recombinant baculovirus to incubating environment of a mammalian cell for transduction; adding an inducer to promote expression of the reporter gene in the mammalian cell; and analyzing the percentage of the mammalian cell expressing the reporter gene to determine the transduction efficiency of the recombinant baculovirus. The method provides the ability to quantitatively analyze baculovirus transduction and is a simple and faster quantitative method applicable in transduction and other research study by including an inducible promoter and a reporter gene and thus prevents from imposing excessive metabolic burden to the cells. A method for determining virus dosage of baculovirus applied in genetic therapy is also disclosed.

    摘要翻译: 用于确定杆状病毒转导效率的方法包括:提供重组杆状病毒,其中重组杆状病毒包括位于诱导型启动子下游的诱导型启动子和报告基因; 将重组杆状病毒加入到用于转导的哺乳动物细胞的温育环境中; 添加诱导剂以促进报告基因在哺乳动物细胞中的表达; 并分析表达报告基因的哺乳动物细胞的百分比,以确定重组杆状病毒的转导效率。 该方法提供定量分析杆状病毒转导的能力,是一种简单快速的定量方法,适用于转导和其他研究,包括诱导型启动子和报告基因,从而防止向细胞施加过多的代谢负担。 还公开了用于确定遗传治疗中应用的杆状病毒的病毒剂量的方法。

    Method for sustained expression of an exogenous gene
    4.
    发明授权
    Method for sustained expression of an exogenous gene 有权
    持续表达外源基因的方法

    公开(公告)号:US08110183B2

    公开(公告)日:2012-02-07

    申请号:US12332838

    申请日:2008-12-11

    IPC分类号: A01N63/00 C12N5/00

    摘要: A method for sustained expression of an exogenous gene forms a circular episomal plasmid to solve the problem of transient expression of baculovirus in the transduced mammalian cells caused by the dilution and degradation when mammalian cells replicate and also prevents dysfunctional cell metabolism.

    摘要翻译: 持续表达外源基因的方法形成环状附加型质粒,以解决当哺乳动物细胞复制时由稀释和降解引起的转导的哺乳动物细胞中杆状病毒的瞬时表达问题,并且还防止功能障碍的细胞代谢。

    Methods for purifying baculovirus
    5.
    发明申请
    Methods for purifying baculovirus 审中-公开
    杆状病毒纯化方法

    公开(公告)号:US20100323429A1

    公开(公告)日:2010-12-23

    申请号:US12081065

    申请日:2008-04-10

    IPC分类号: C12N7/02

    CPC分类号: C12N7/00 C12N2710/14051

    摘要: The present invention provides a method for purifying baculovirus comprising: providing a baculovirus mixture containing a baculovirus and a liquid portion; replacing the liquid portion with a binding buffer by an ultrafiltration system to form a virus buffer; and purifying the baculovirus from the virus buffer using glycoprotein specific affinity chromatography. Therefore, use of the method of the present invention in the purification of baculovirus resulted in an enhanced discovery yield and improved purity of virus.

    摘要翻译: 本发明提供了一种用于纯化杆状病毒的方法,包括:提供含有杆状病毒和液体部分的杆状病毒混合物; 用超滤系统用结合缓冲液代替液体部分以形成病毒缓冲液; 并使用糖蛋白特异性亲和层析从病毒缓冲液纯化杆状病毒。 因此,使用本发明的方法在杆状病毒的纯化中导致增加的发现产率和病毒的纯度提高。