MONOCLONAL ANTIBODY PRODUCTION BY EBV TRANSFORMATION OF B CELLS
    52.
    发明申请
    MONOCLONAL ANTIBODY PRODUCTION BY EBV TRANSFORMATION OF B CELLS 有权
    B细胞EBV转化的单克隆抗体生产

    公开(公告)号:US20140004123A1

    公开(公告)日:2014-01-02

    申请号:US13870804

    申请日:2013-04-25

    IPC分类号: C07K16/10 C12P21/00

    摘要: A method for producing a clone of an immortalised human B memory lymphocyte, comprising the step of transforming human B memory lymphocytes using Epstein Barr virus (EBV) in the presence of a polyclonal B cell activator. The method is particularly useful in a method for producing a clone of an immortalised human B memory lymphocyte capable of producing a human monoclonal antibody with a desired antigen specificity, comprising the steps of: (i) selecting and isolating a human memory B lymphocyte subpopulation; (ii) transforming the subpopulation with Epstein Ban virus (EBV) in the presence of a polyclonal B cell activator; (iii) screening the culture supernatant for antigen specificity; and (iv) isolating an immortalised human B memory lymphocyte clone capable of producing a human monoclonal antibody having the desired antigen specificity.

    摘要翻译: 一种生产永生化人B记忆淋巴细胞克隆的方法,其包括在多克隆B细胞激活剂存在下使用爱泼斯坦巴尔病毒(EBV)转化人B记忆淋巴细胞的步骤。 该方法特别可用于生产能够产生具有所需抗原特异性的人单克隆抗体的永生化人B记忆淋巴细胞克隆的方法,包括以下步骤:(i)选择和分离人类记忆B淋巴细胞亚群; (ii)在存在多克隆B细胞激活剂的情况下用爱泼斯坦班病毒(EBV)转化亚群; (iii)筛选培养上清液以获得抗原特异性; 和(iv)分离能够产生具有所需抗原特异性的人单克隆抗体的永生化人B记忆淋巴细胞克隆。

    IN VITRO PROCESS FOR THE PREPARATION OF ANTIBODIES OF THE IGG TYPE
    56.
    发明申请
    IN VITRO PROCESS FOR THE PREPARATION OF ANTIBODIES OF THE IGG TYPE 审中-公开
    用于制备IGG型抗体的体外制备方法

    公开(公告)号:US20130196380A1

    公开(公告)日:2013-08-01

    申请号:US13576006

    申请日:2011-02-04

    IPC分类号: C12P21/00

    摘要: An in vitro process for the preparation of antibodies of the IgG type, comprising the steps of: i. challenging dendritic cells obtained from a donor with an antigen against which the antibodies to be prepared are directed; ii. challenging CD4+ T cells obtained from the same donor with fragments of the antigen presented by the dendritic cells from step L, with the proviso that the dendritic cells are ones essentially not secreting interferon-γ (IFN-γ) and interleukin 12 (IL-12), to generate antigen-specific CD4+ Th2 cells; iii. challenging with the antigen a B cell population obtained from the same donor and including a sufficient proportion of naive B cells; and iv. contacting the antigen-specific CD4+ Th2 cells according to ii. with at least a fraction of the B cell population from iii. to form an antigen-specific plasma cell; v. immortalizing said antigen-specific plasma cell; and vi. isolating the IgG antibodies formed by said antigen-specific plasma cell.

    摘要翻译: 用于制备IgG型抗体的体外方法,包括以下步骤:i。 从具有待制备的抗体的抗原的供体获得的具有挑战性的树突状细胞; ii。 挑选与来自步骤L的树突状细胞呈递的抗原片段相同供体的CD4 + T细胞,条件是树突细胞基本上不分泌干扰素-γ(IFN-γ)和白细胞介素12(IL-12) ),以产生抗原特异性CD4 + Th2细胞; iii。 与抗原挑战从相同供体获得的B细胞群体,并包括足够比例的幼稚B细胞; 和iv。 根据ii。接触抗原特异性CD4 + Th2细胞。 其中至少一部分来自iii的B细胞群体。 以形成抗原特异性浆细胞; v永生化所述抗原特异性浆细胞; 和vi。 分离由所述抗原特异性浆细胞形成的IgG抗体。

    ANTIBODY PRODUCING NON-HUMAN MAMMALS
    59.
    发明申请
    ANTIBODY PRODUCING NON-HUMAN MAMMALS 有权
    抗生素生产非人类哺乳动物

    公开(公告)号:US20130145484A1

    公开(公告)日:2013-06-06

    申请号:US13750753

    申请日:2013-01-25

    申请人: MERUS B.V.

    摘要: Described are transgenic, non-human animals comprising a nucleic acid encoding an immunoglobulin light chain, whereby the immunoglobulin light chain is human, human-like, or humanized. The nucleic acid is provided with a means that renders it resistant to DNA rearrangements and/or somatic hypermutations. In one embodiment, the nucleic acid comprises an expression cassette for the expression of a desired molecule in cells during a certain stage of development in cells developing into mature B cells. Further provided is methods for producing an immunoglobulin from the transgenic, non-human animal.

    摘要翻译: 描述了包含编码免疫球蛋白轻链的核酸的转基因非人动物,其中免疫球蛋白轻链是人类,人类样或人源化的。 为核酸提供了使其对DNA重排和/或体细胞超突变有抗性的手段。 在一个实施方案中,所述核酸包含用于在发育成熟B细胞的细胞的某一发育阶段期间在细胞中表达所需分子的表达盒。 还提供了从转基因非人动物制备免疫球蛋白的方法。