READILY ISOLATED BISPECIFIC ANTIBODIES WITH NATIVE IMMUNOGLOBULIN FORMAT
    4.
    发明申请
    READILY ISOLATED BISPECIFIC ANTIBODIES WITH NATIVE IMMUNOGLOBULIN FORMAT 审中-公开
    具有本身免疫球蛋白形式的自分离分离抗体

    公开(公告)号:WO2013136186A3

    公开(公告)日:2014-01-23

    申请号:PCT/IB2013000902

    申请日:2013-03-13

    CPC classification number: C07K16/468 C07K16/244 C07K16/2809 C07K2317/31

    Abstract: The invention relates to antigen-binding proteins or antibodies having heterodimers of heavy chains, i.e., two immunoglobulin heavy chains that differ by at least one or two amino acid(s) that allows for isolation of the antigen-binding protein based on a differential affinity of an immunoglobulin heavy chain and a modified/mutated immunoglobulin heavy chain toward an affinity reagent. The invention also relates antigen-binding proteins, including bispecific antibodies, having IgG CH1 regions with different affinities with respect to affinity reagent(s) that allows rapid isolation by differential binding of the IgG regions to the affinity reagent(s).

    Abstract translation: 本发明涉及具有重链异源二聚体的抗原结合蛋白或抗体,即两条免疫球蛋白重链之间有差异的至少一个或两个氨基酸,其允许基于差异亲和力分离抗原结合蛋白 的免疫球蛋白重链和修饰/突变的免疫球蛋白重链朝向亲和试剂。 本发明还涉及包含双特异性抗体的抗原结合蛋白,其具有相对于亲和试剂具有不同亲和力的IgG CH1区域,其允许通过IgG区域与亲和试剂的差异结合快速分离。

    METHODS OF PURIFYING ANTIBODIES
    5.
    发明申请
    METHODS OF PURIFYING ANTIBODIES 审中-公开
    纯化抗体的方法

    公开(公告)号:WO2013088259A2

    公开(公告)日:2013-06-20

    申请号:PCT/IB2012/003028

    申请日:2012-10-19

    Abstract: The invention provides methods of purifying antibodies using various antibody- specific purification media to rapidly and efficiently separate mixtures of antibodies, antibody fragments and/or antibody components to isolate a desired antibody product from the mixture. The invention relates to the purification of bispecific monoclonal antibodies carrying a different specificity for each binding site of the immunoglobulin molecule, e.g., antibodies composed of a single heavy chain and two different light chains, one containing Kappa constant domain and the other a Lambda constant domain, including antibodies of different specificities that share a common heavy chain. The invention also provides the methods of efficiently purifying intact antibodies by separating the intact antibody from non-intact antibodies including free light chains.

    Abstract translation: 本发明提供使用各种抗体特异性纯化介质纯化抗体的方法,以快速且有效地分离抗体,抗体片段和/或抗体组分的混合物,以从混合物中分离所需的抗体产物。 本发明涉及对免疫球蛋白分子的每个结合位点具有不同特异性的双特异性单克隆抗体的纯化,例如由单个重链和两个不同轻链组成的抗体,一个含有κ恒定结构域,另一个包含λ恒定结构域 ,包括具有共同重链的不同特异性的抗体。 本发明还提供了通过将完整抗体与包括游离轻链在内的不完整抗体分离来有效纯化完整抗体的方法。

    METHODS FOR THE GENERATION OF MULTISPECIFIC AND MULTIVALENT ANTIBODIES
    6.
    发明申请
    METHODS FOR THE GENERATION OF MULTISPECIFIC AND MULTIVALENT ANTIBODIES 审中-公开
    用于产生多重和多重抗体的方法

    公开(公告)号:WO2012023053A3

    公开(公告)日:2012-05-24

    申请号:PCT/IB2011002664

    申请日:2011-08-16

    Abstract: The invention provides novel bispecific monoclonal antibodies carrying a different specificity for each binding site of the immunoglobulin molecule and methods for producing novel bispecific monoclonal antibodies carrying a different specificity for each binding site of the immunoglobulin molecule. The antibodies are composed of a single heavy chain and two different light chains, one containing a Kappa constant domain and the other of a Lambda constant domain. The invention provides methods for the isolation of antibodies of different specificities but sharing a common heavy chain. The invention also provides methods for the controlled co-expression of two light chains and a single heavy chain leading to the assembly of monospecific and bispecific antibodies. The invention provides a mean of producing a fully human bispecific and bivalent antibody that is unaltered in sequence and does not involve the use of linkers or other non-human sequences, as well as antibody mixtures of two monospecific antibodies and one bispecific antibody. The invention also provides the means of efficiently purifying the bispecific antibody.

    Abstract translation: 本发明提供对免疫球蛋白分子的每个结合位点携带不同特异性的新型双特异性单克隆抗体以及用于产生对免疫球蛋白分子的每个结合位点具有不同特异性的新型双特异性单克隆抗体的方法。 抗体由单个重链和两个不同的轻链组成,一个含有κ恒定结构域,另一个是λ恒定结构域。 本发明提供了分离不同特异性但共享共同重链的抗体的方法。 本发明还提供了两个轻链和单个重链的受控共表达的方法,导致单特异性和双特异性抗体的组装。 本发明提供了产生完全人双特异性和二价抗体的平均值,其依次不变,不涉及使用接头或其它非人序列,以及两种单特异性抗体和一种双特异性抗体的抗体混合物。 本发明还提供有效纯化双特异性抗体的方法。

    METHODS OF PURIFYING ANTIBODIES
    9.
    发明申请
    METHODS OF PURIFYING ANTIBODIES 审中-公开
    纯化抗体的方法

    公开(公告)号:WO2013088259A3

    公开(公告)日:2013-11-14

    申请号:PCT/IB2012003028

    申请日:2012-10-19

    Abstract: The invention provides methods of purifying antibodies using various antibody- specific purification media to rapidly and efficiently separate mixtures of antibodies, antibody fragments and/or antibody components to isolate a desired antibody product from the mixture. The invention relates to the purification of bispecific monoclonal antibodies carrying a different specificity for each binding site of the immunoglobulin molecule, e.g., antibodies composed of a single heavy chain and two different light chains, one containing Kappa constant domain and the other a Lambda constant domain, including antibodies of different specificities that share a common heavy chain. The invention also provides the methods of efficiently purifying intact antibodies by separating the intact antibody from non-intact antibodies including free light chains.

    Abstract translation: 本发明提供了使用各种抗体特异性纯化介质来纯化抗体以快速且有效地分离抗体,抗体片段和/或抗体组分的混合物以从混合物中分离出所需抗体产物的方法。 本发明涉及纯化对免疫球蛋白分子的每个结合位点具有不同特异性的双特异性单克隆抗体,例如由单一重链和两个不同轻链组成的抗体,一个含有κ恒定结构域,另一个含有λ恒定结构域 包括具有共同重链的不同特异性的抗体。 本发明还提供了通过将完整抗体与包括游离轻链的非完整抗体分开来有效纯化完整抗体的方法。

Patent Agency Ranking