ANTIBODY CLEAVAGE SITE BINDING MOLECULE

    公开(公告)号:US20220324975A1

    公开(公告)日:2022-10-13

    申请号:US17615748

    申请日:2020-06-05

    IPC分类号: C07K16/28 A61K35/17

    摘要: The present disclosure provides a pharmaceutical composition comprising an antibody having ADCC activity, a T cell-redirecting antibody, or a cell expressing a chimeric receptor, for use in combination with the administration of an antigen binding molecule capable of binding to a target antigen, wherein the primary molecule comprises a linker that is cleaved by protease, the antigen binding molecule obtained through the cleavage of the linker has the ability to bind to the target antigen, variable regions of the antibody having ADCC activity or the T cell-redirecting antibody, and an extracellular binding domain of the chimeric receptor bind to a cell expressing the target antigen via binding to the antigen binding molecule resulting from the cleavage of the cleavable linker.

    CAR EXPRESSION VECTOR AND CAR-EXPRESSING T CELLS

    公开(公告)号:US20210253726A1

    公开(公告)日:2021-08-19

    申请号:US17133286

    申请日:2020-12-23

    摘要: An object of the present invention is to provide CAR-expressing T cells that coexpress a chimeric antigen receptor (CAR) and a T cell immune function-enhancing factor and have a high immunity-inducing effect and antitumor activity, and to provide a CAR expression vector for the preparation of the CAR-expressing T cells.
    A CAR expression vector comprises a nucleic acid encoding a chimeric antigen receptor (CAR) and a nucleic acid encoding a T cell immune function-enhancing factor, wherein the nucleic acid encoding an immune function-enhancing factor is a nucleic acid encoding interleukin-7 and a nucleic acid encoding CCL19, a nucleic acid encoding a dominant negative mutant of SHP-1, or a nucleic acid encoding a dominant negative mutant of SHP-2, or a CAR-expressing T cell introduced with the CAR expression vector are prepared.