Provided herein are Claudin 18.2 binding agents and chimeric antigen receptors (CARs) comprising a Claudin 18.2 binding molecule that specifically binds to Claudin 18.2; and immune cells comprising these Claudin 18.2-specific CARs, e.g., CAR-T cells. Also provided are methods of making and using Claudin 18.2-specific CARs and Claudin 18.2 binding agents, and immune cells comprising Claudin 18.2-specific CARs.

Disclosed herein are methods and compositions including antigen-binding polypeptides comprising a stalk region and a stalk extension region. In some cases, the antigen-binding compositions comprising the stalk extension region has increased expression on a cell surface and, in some cases, has increased antigen-binding efficiency. A subject antigen binding polypeptide can be a chimeric antigen receptor (CAR).

Provided are chimeric antigen receptors having the hinge, transmembrane region, and/or intracellular domain of LILRB1, or functional fragments or variants thereof. Also provided herein are cells comprising the LILRB1 based receptors, and methods of making and using same.

An engineered immune cell for immunotherapy, which has a relatively high persistence and/or survival rate of transplantation in a host organism, and a preparation method therefor.

Provided are B cell-activating factor receptor (BAFF-R)-binding molecules, in particular, to human antibodies specific for BAFF-R, including antibody fragments. The present disclosure further relates to recombinant receptors, including chimeric antigen receptors (CARs) that contain such antibodies or fragments, and polynucleotides that encode the antibodies, antigen-binding fragments or receptors specific for BAFF-R. Also provided are CARs which contain extracellular binding domains that bind to BAFF-R and B-lymphocyte antigen CD19 (CD19), genetically engineered cells expressing such CARs, and uses thereof in adoptive cell therapy.

Described herein are methods using CRISPR-Cas9 and DNA templates that can generate chimeric antigen receptors (CARs) on T cells to target the cell surface protein urokinase Plasminogen Activator Receptor (uPAR) on senescent cells. Also described are methods of preparing CAR T cells, their use to treat neurodegenerative disease, stroke, craniocerebral trauma and/or accident, or elderly individuals in need of treatment for aging.

In certain aspects, provided herein are compositions and methods for treating cancer. The methods of the present disclosure comprise administering to a subject in need thereof a NK cell expressing a CAR in combination with an antigen-binding molecule that binds to a tumor antigen, wherein the CAR-NK cell targets tumor cells through binding to the antigen-binding molecule.

The present invention provides a novel chimeric antigen receptor, comprising an antigen-binding region, a transmembrane domain, a costimulatory domain, an intracellular signaling domain, and an additional signaling region. The additional signaling region consists of a ?c chain or an intracellular region thereof. The present invention also provides an engineered immune cell comprising the novel chimeric antigen receptor of the present invention and a pharmaceutical composition thereof, and use of the engineered immune cell/pharmaceutical composition for treating cancers.

Provided herein are acute myeloid leukemia antigen targets for chimeric receptors and methods of using same.

A preparation and an application of a chimeric antigen receptor immune cell constructed on the basis of granzyme B are provided, including, a granzyme B (GrB)-based modified chimeric antigen receptor (CAR), the CAR containing an extracellular binding domain, and the extracellular binding domain being capable of specifically targeting heat shock proteins. The CAR immune cell acts by means of binding of a ligand and a receptor, and has relatively high targeting specificity and relatively better safety.