Abstract: Provided is a chimeric antibody immune cell engager comprising a target cell binding domain that specifically binds to an antigen on a target cell, and an immune effector cell binding domain comprising an antigen-binding fragment that specifically binds to an antigen on an immune effector cell. Also provided are pharmaceutical compositions, kits and methods of treatment.

Abstract: The present disclosure provides single domain antibodies that bind to CD20, and chimeric antigen receptors comprising same. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.

Abstract: The present disclosure provides single domain antibodies that bind to CD22, and chimeric antigen receptors comprising same. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.

Abstract: The present disclosure provides single domain antibodies that bind to CD19, and chimeric antigen receptors comprising same. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.

Abstract: Single domain antibodies that bind to Claudin18.2, and chimeric antigen receptors comprising same are provided. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.

Abstract: Provided are anti-glypican-3 (GPC3) antibodies or antigen binding fragments thereof, and a chimeric antigen receptor (CAR) that binds glypican-3 (GPC3) containing an anti-GPC3 antibody in an extracellular domain, a transmembrane domain, and an intracellular signaling domain. Immune effector cells transduced with the disclosed CAR constructs can be used for cancer immunotherapy.

Abstract: A modified T cell comprising a functional exogenous receptor is provided. The functional exogenous receptor comprises: (a) an extracellular ligand binding domain, (b) a transmembrane domain, and (c) an intracellular signaling domain (ISD) comprising a chimeric signaling domain (CMSD), wherein the CMSD comprises a plurality of Immune-receptor Tyrosine-based Activation Motifs (ITAMs) optionally connected by one or more linkers. Further provided are vectors, methods of producing, pharmaceutical compositions, kits, and methods of treatment thereof.

Abstract: A chimeric antigen receptor (CAR) comprising a polypeptide comprising an extracellular antigen binding domain comprising a first BCMA binding moiety and a second BCMA binding moiety, wherein the first BCMA binding moiety is a first anti-BCMA single domain antibody, and the second BCMA binding moiety is a second anti-BCMA sdAb; and wherein each of the first and second sdAb is a VHH domain.

Abstract: Disclosed herein is a novel chimeric antigen receptor and use thereof. The novel chimeric antigen receptor consists of a signal peptide, an antigen binding domain, a transmembrane region, and an intracellular signal domain, and comprises a 4-1BB signal peptide and/or a 4-1BB molecular transmembrane region. Nucleic acid sequences of various chimeric antigen receptors are separated and purified and provided is a chimeric antigen receptor and a CAR-T cell which are specific for a CD19 malignant tumor antigen. In the malignant tumor killing test of hematological cell lines, the ability of immune cells to target and recognize tumor cells is significantly enhanced, and the killing activity against tumor cells is also enhanced.

Abstract: Provided herein are single-domain antibodies targeting BCMA, and chimeric antigen receptors (such as monovalent CAR, and multivalent CAR including bi-epitope CAR) having one or more anti-BCMA single-domain antibodies. Further provided are engineered immune effector cells (such as T cells) having the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating cancer are also provided.

Abstract: A modified T cell comprises: i) an exogenous Negative Regulatory Factor (Nef) protein; and ii) a functional exogenous receptor comprising: (a) an extracellular ligand binding domain, (b) a transmembrane domain, and (c) an intracellular signaling domain (ISD) comprising a chimeric signaling domain (CMSD), wherein the CMSD comprises one or a plurality of Immune-receptor Tyrosine-based Activation Motifs (ITAMs), wherein the plurality of CMSD ITAMs are optionally connected by one or more linkers. Provided are also Nef proteins (e.g., non-naturally occurring Nef), and modified T cells comprising such Nef proteins. Provided are methods of making and uses thereof.

Abstract: A modified T cell comprising a functional exogenous receptor is provided. The functional exogenous receptor comprises: (a) an extracellular ligand binding domain, (b) a transmembrane domain, and (c) an intracellular signaling domain (ISD) comprising a chimeric signaling domain (CMSD), wherein the CMSD comprises a plurality of Immune-receptor Tyrosine-based Activation Motifs (ITAMs) optionally connected by one or more linkers. Further provided are vectors, methods of producing, pharmaceutical compositions, kits, and methods of treatment thereof.

Abstract: The present invention relates to a human CD123-targeting chimeric receptor ligand, comprising an IL-3 molecule-based CD123 binding domain, a transmembrane region, and an intracellular signaling domain. The present invention provides a T cell modified by the human CD123-targeting chimeric receptor ligand and capable of specifically binding with CD123 on tumor cell surfaces, thereby having specific cytotoxicity on tumor cells. The present invention further relates to an application of the human CD123-targeting chimeric receptor ligand and an immune effector cell thereof in preparing an anti-tumor immunotherapy drug.

Abstract: Provided are a method of producing a modified T cell comprising introducing into a precursor T cell a first nucleic acid encoding a Nef protein, wherein the Nef protein upon expression results in down-modulation of the endogenous T cell receptor (TCR) in the modified T cell, wherein the modified T cell furthermore expresses a functional exogenous receptor, such as an engineered TCR (e.g., chimeric TCR), T cell antigen coupler (TAC), TAC-like chimeric receptor, or a chimeric antigen receptor (CAR), the modified cell obtained by the method and the pharmaceutical composition comprising the modified T cell. Also provided is a non-naturally occurring Nef protein comprising one or more mutations.

Abstract: The present application provides single-domain antibodies targeting BCMA, and chimeric antigen receptors (such as monovalent CAR, and multivalent CAR including bi-epitope CAR) comprising one or more anti-BCMA single-domain antibodies. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating cancer are also provided.

Abstract: Described herein are binding moieties, such as antibodies, that specifically bind Claudin18.2, and chimeric antigen receptors comprising such binding moieties. Further provided are engineered immune cells (such as T cells) comprising anti-Claudin 18.2 chimeric antigen receptors. Also disclosed are methods of treating Claudin18.2-expressing tumor or cancers using the binding moieties, chimeric antigen receptors and engineered immune cells.

Abstract: The present application provides single-domain antibodies targeting BCMA, and chimeric antigen receptors (such as monovalent CAR, and multivalent CAR including bi-epitope CAR) comprising one or more anti-BCMA single-domain antibodies. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating cancer are also provided.

Abstract: Provided are chimeric receptors targeting NKG2D, and multispecific chimeric receptors comprising an NKG2D domain and a second antigen binding domain such as an IL-3 domain. Also provided are dual chimeric receptor systems comprising a first chimeric receptor comprising an NKG2D domain, and a second chimeric receptor comprising a second antigen binding domain such as an IL-3 domain. Further provided are engineered immune effector cells (such as T cells), pharmaceutical compositions, kits and methods of treating cancer.

Abstract: The present application provides single-domain antibodies, and chimeric antigen receptors comprising one or more antigen binding domains each comprising a single-domain antibody. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating cancer are also provided.

Abstract: The present application provides single-domain antibodies targeting BCMA, and chimeric antigen receptors (such as monovalent CAR, and multivalent CAR including bi-epitope CAR) comprising one or more anti-BCMA single-domain antibodies. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating cancer are also provided.