CAR-T CELL THERAPY FOR TRIPLE NEGATIVE BREAST CANCER

    公开(公告)号:WO2022272259A1

    公开(公告)日:2022-12-29

    申请号:PCT/US2022/073079

    申请日:2022-06-22

    IPC分类号: C07K14/705 C12Q1/6886

    摘要: As disclosed herein, high expression of the inhibitory ligands Galectin-3 (LAG-3 ligand), Galectin-9 (Tim-3 ligand), HMGB1 (Tim-3 ligand), CD112 (CD112R ligand) and TNFSF10 (DR5 ligand) in the microenvironment of triple negative breast cancer cells is inhibitory for T-cells. Therefore, disclosed herein is a chimeric receptor comprising an extracellular domain of TIM-3, LAG-3, CD112R or DR5 and transmembrane and intracellular domain of a pro-inflammatory interleukin and/or a co-stimulatory domain. Also disclosed is an immune effector cell engineered to express a chimeric antigen receptor (CAR) polypeptide and the disclosed chimeric receptor. Also disclosed is a method of providing an anti-cancer immunity in a subject with a MUC1-expressing cancer, the method comprising administering to the subject an effective amount of the disclosed immune effector cell, thereby providing an anti-tumor immunity in the subject.

    CUSTOMIZED CHIMERIC ANTIGEN RECEPTOR POLYPEPTIDES

    公开(公告)号:WO2022174172A1

    公开(公告)日:2022-08-18

    申请号:PCT/US2022/016383

    申请日:2022-02-15

    发明人: DAVILA, Marco L.

    IPC分类号: A61K39/00 C07K16/28 C07K16/30

    摘要: Disclosed herein are chimeric antigen receptor (CAR) polypeptides that can be used with adoptive cell transfer having endodomains with a customized number of immunoreceptor tyrosine-based activation motifs (ITAMs). In some embodiments, the endodomain has a backbone of a receptor endodomain, such as CD8, CD3ζ, CD3δ, CD3γ, CD3ε, CD32 (Fc gamma RIIa), DAP10, DAP12, CD79a, CD79b, FcγRIγ, FcγRIIIγ, FcεRIβ (FCERIB), and FcεRIγ (FCERIG). In particular embodiments disclosed herein, the backbone is a DAP12 backbone. The disclosed endodomain is engineered to express at least one heterologous ITAM, including 1, 2, 3, 4, 5, or 6 ITAMs.