公开(公告)号：US20160159930A1

公开(公告)日：2016-06-09

申请号：US14934956

申请日：2015-11-06

Applicant: GENMAB A/S

Inventor： Janine SCHUURMAN ,  Tom VINK ,  Jan VAN DE WINKEL ,  Aran Frank LABRIJN ,  Rob AALBERSE ,  Marijn VAN DER NEUT KOLFSCHOTE ,  Paul PARREN

IPC: C07K16/46 ,  C07K16/28

CPC classification number: C07K16/468 ,  C07K16/00 ,  C07K16/2863 ,  C07K16/2887 ,  C07K2317/24 ,  C07K2317/31 ,  C07K2317/526 ,  C07K2317/53 ,  C07K2319/00

Abstract: The invention relates to an ex vivo method for the generation of a bispecific antibody, comprising the steps of: a) providing a first antibody having a first binding specificity, wherein said first antibody comprises an IgG4-like CH3 region, b) providing a second antibody having a second binding specificity which differs from said first binding specificity, wherein said second antibody comprises an IgG4-like CH3 region, c) incubating said first and second antibodies together under reducing conditions which allow the cysteines in the core hinge region to undergo disulfide-bond isomerization, and d) obtaining a bispecific antibody. The invention furthermore relates to bispecific antibodies obtainable by the method of the invention.

Abstract translation: 本发明涉及用于产生双特异性抗体的离体方法，包括以下步骤：a）提供具有第一结合特异性的第一抗体，其中所述第一抗体包含IgG4样CH3区，b）提供第二抗体 具有不同于所述第一结合特异性的第二结合特异性的抗体，其中所述第二抗体包含IgG4样CH3区，c）在还原条件下将所述第一抗体和第二抗体一起温育，所述还原条件允许核心铰链区中的半胱氨酸经历二硫键 并且d）获得双特异性抗体。 本发明还涉及通过本发明的方法可获得的双特异性抗体。