Provided is a chimeric antigen receptor, comprising a ligand-binding domain, a transmembrane domain, a co-stimulatory domain, and an intracellular signaling domain. The co-stimulatory domain comprises an intracellular region of an NK-activated receptor or a ligand thereof. Also provided are an engineered immune cell comprising the chimeric antigen receptor and a use thereof in treatment of diseases, such as cancers, autoimmune diseases, and infections.

Provided is an engineered immune cell. The engineered immune cell expresses (i) a chimeric receptor, and (ii) exogenous CCL3, CCL4 and/or CCL5, has improved tumor killing activity, and can be used to treat cancer, infection or autoimmune diseases.

An engineered immune cell comprising a first functional exogenous receptor capable of binding and depleting natural killer (NK) cells, and a second functional exogenous receptor, wherein the engineered immune cell has reduced MHC I on cell surface.

Provided herein are chimeric transmembrane receptor polypeptides configured to oligomerize upon recognition of an extramembrane signal. The receptors include an extramembrane domain, a transmembrane domain, and an intramembrane domain configured to induce activation of one or more intramembrane signal pathways upon oligomerization of the receptor. The provided receptors are particularly useful for engineered cell therapies. Also provided are systems and host cells including the disclosed receptors, and methods for using the disclosed materials.

Disclosed is a cell expressing a modified CD3 subunit chain or a cell expressing a modified non-CD3 subunit chain comprising one or more of: (a) at least one Immuno-receptor Tyrosine-based Activation Motif (ITAM) deletion; or (b) at least one exogenous intracellular hematopoietic cell signaling domain; and (c) at least one modified ITAM comprising an amino acid sequence of Formula I. Related populations of cells, pharmaceutical compositions, methods of making the cells, methods of treating or preventing a condition in a subject, and methods of enhancing an antigen-specific immune response in a subject are also disclosed.

Some embodiments of the methods and compositions provided herein include methods and materials involved in binding a binder (e.g., an antibody, antigen binding fragment, antibody domain, CAR, cell engager, and/or ADC) to an FGFR4 polypeptide. For example, binders (e.g., antibodies, antigen binding fragments, antibody domains, CARs, cell engagers, and/or ADCs) acidic box that bind to an FGFR4 polypeptide and methods and materials for using one or more such binding molecules to treat a mammal (e.g., a human) having cancer are provided. Some embodiments of the methods and compositions provided herein include chimeric antigen receptors (CARs) which specifically bind to fibroblast growth factor receptor 4 (FGFR4). Some embodiments include nucleic acids encoding such CARs, and cells containing such CARs. Some embodiments include the use of such CARs in safe and effective therapies for a cancer, such as an FGFR4-expressing cancer, such as a rhabdomyosarcoma.

The present invention relates to an antibody specific for CD47 and uses thereof, and more particularly, to an antibody that specifically binds to CD47, a chimeric antigen receptor comprising the antibody, and a pharmaceutical composition comprising the same for preventing or treating diseases mediated by CD47-expressing cells.

In the present invention, antibodies that more specifically binds to CD47 were screened to establish 7 new types of antibodies (7C7, 5H4, 5A4, 4E12, 3H3, 3A5, 1E7), and it was confirm that the novel antibodies can specifically binds with CD47 antigen.

In addition, since it was confirmed that the production of a chimeric antigen receptor (CAR) targeting CD47 is possible using the established antibody, the CD47-specific antibody of the present invention and the chimeric antigen receptor prepared using the same can be applied for use in preventing or treating a cancer or tumor expressing CD47.

The present invention relates to a chimeric receptor capable of signaling both a primary and a co-stimulatory pathway, thus allowing activation of the co-stimulatory pathway without binding to the natural ligand. The cytoplasmic domain of the receptor contains a portion of the 4-1BB signaling domain. Embodiments of the invention relate to polynucleotides that encode the receptor, vectors and host cells encoding a chimeric receptor, particularly including T cells and natural killer (NK) cells and methods of use.

The present invention relates to an engineered immune cell which comprises: (i) a target binding polypeptide comprising a target-binding domain and a first protein interaction domain, and (ii) a localising polypeptide comprising a second protein interaction domain, which binds to the first protein binding domain, and an intracellular retention signal. When the target binding polypeptide binds its target protein and also the localising polypeptide, expression of the target protein at the cell surface is reduced or eliminated because the target protein is retained in an intracellular compartment.

The present disclosure provides a chimeric antigen receptor (CAR) specific for albumin. The present disclosure also provides compositions comprising the CAR, polynucleotides encoding the CAR, vectors comprising a polynucleotide encoding the CAR, engineered cells comprising the CAR, and method using the same.