The present invention relates to chimeric receptors (e.g. CARs including both single chain and multichain CARs) that bind to TREM2 ligands and their use in therapy. In particular, the invention provides a chimeric receptor comprising: (a) an exodomain comprising the ligand binding domain of TREM2 or a functional variant thereof, optionally wherein said exodomain is resistant to cleavage by a sheddase; (b) a transmembrane domain; and (c) an endodomain comprising an intracellular signalling domain.

Provided herein are inhibitory chimeric antigen receptor compositions and cells comprising such compositions. Also provided are methods of using inhibitory chimeric antigen receptors and cells.

Provided is application of chimeric antigen receptor (CAR)-modified T (CART) cells in preparing drugs for cancer treatment, the CART cells contain an artificially-introduced costimulatory signal transduction domain, and the CART cell does not contain an artificially-introduced first signal transduction domain.

The present invention provides a system for providing a T cell product, including a T cell master cell bank and/or a T cell working cell bank.

Disclosed herein are anti-mesothelin antibodies and antigen-binding fragments, chimeric antigen receptors (“CARs”) having these anti-mesothelin antibodies and antigen-binding fragments (“mesothelin CARs”) and genetically modified immune effector cells having such mesothelin CARs. Polynucleotides encoding the anti-mesothelin antibodies and antigen-binding fragments and mesothelin CARs are also provided herein. Compositions comprising anti-mesothelin antibodies and antigen-binding fragments and mesothelin CARs are also provided herein. The present disclosure also relates to uses of the anti-mesothelin antibodies and antigen-binding fragments and genetically modified immune effector cells having such mesothelin CARs in cancer treatment.

The present disclosure relates to genetically modified T cells comprising a transgene encoding an engineered antigen specific receptor, wherein expression of an endogenous gene selected from MNK1, MNK2, or both are inhibited in the genetically modified T cell in order to enhance central memory T cell subsets in cellular immunotherapy compositions.

Embodiments described herein relate to compositions including genetically modified CAR cells and uses thereof for treating cancer. Some embodiments of the present disclosure relate to compositions and methods for T cell response enhancement and/or CAR cell preparation. For example, a method may include obtaining cells comprising a CAR and culturing the cells in the presence of an agent that is recognized by the extracellular domain of the CAR.

The present invention relates, in part, to agents that bind CD8 and their use as therapeutic and diagnostic agents. The present invention further relates to pharmaceutical compositions comprising the CD8 binding agents and their use in the treatment of various diseases, including, for example, cancers.

The present disclosure provides a dendric cell tumor vaccine comprising a chimeric antigen receptor for activating the dendritic cell and a tumor antigen. The present disclosure also provides compositions and methods of making the dendritic cell tumor vaccine, and the methods of using the dendritic cell tumor vaccine to treat cancer.

The present invention provides a chimeric antigen receptor and natural killer cells expressing the same, and particularly, a chimeric antigen receptor (CAR) which includes an intracellular signaling domain including the whole or a portion of an OX40 ligand (CD252), thereby having excellent effects of increasing anticancer activity of immune cells, and immune cells expressing the same.