The present invention generally relates to novel protease-activatable T cell activating bispecific molecules and idiotype-specific polypeptides. The present invention also relates to polynucleotides encoding such protease-activatable T cell activating bispecific molecules and idiotype-specific polypeptides, and vectors and host cells comprising such polynucleotides. The invention further relates to methods for producing the protease-activatable T cell activating bispecific molecules and idiotype-specific polypeptides of the invention, and to methods of using these protease-activatable T cell activating bispecific molecules and idiotype-specific polypeptides in the treatment of disease.

Multi-specific antigen-binding constructs that target immunotherapeutics are described. The multi-specific antigen-binding constructs comprise a first antigen-binding polypeptide construct that binds to an immunotherapeutic (such as a CAR-T cell or a bispecific T-cell engager), and a second antigen binding polypeptide construct that binds to a tumour-associated antigen. Also described are methods of using the multi-specific antigen-binding constructs to re-direct or enhance the binding of the immunotherapeutic to a tumour cell, and methods of treating patients who have relapsed from or failed treatment with the immunotherapeutic.

This disclosure relates to methods for improving the therapeutic index of a chemotherapeutic drug in the treatment of patients afflicted with cancer, by reducing chemotherapy-related toxicity to a level that allows the chemotherapeutic drug to be used in humans.

Anti-TIGIT antibodies and antigen binding fragments thereof that inhibit TIGIT-mediated signalling are provided, together with combinations comprising said antibodies or antigen binding fragments thereof and methods for their use.

The present invention relates to genetically modified B cells and their uses thereof, for example, for the treatment of a variety of diseases and disorders, including cancer, heart disease, inflammatory disease, muscle wasting disease, neurological disease, and the like. In certain embodiments, the invention relates to an isolated modified B cell (CAR-B cell), capable of expressing a chimeric receptor (CAR-B receptor), wherein said chimeric receptor comprises (a) an extracellular domain; (b) a transmembrane domain; and (c) a cytoplasmic domain that comprises at least one signaling domain. In various embodiments, the invention comprises an isolated modified B cell, wherein said B cell is capable of expressing and secreting a payload, wherein the payload is not naturally expressed in a B cell or is expressed at higher levels than is naturally expressed in a B cell. In various embodiments, the payload is an antibody or fragment thereof.

Provided herein are anti-idiotype antibodies that specifically recognize anti-CD70 antibody moieties, in particular, anti-CD70 antibody moieties present in recombinant receptors, including chimeric antigen receptors (CARs). The disclosure further relates to uses of anti-idiotype antibodies for specifically identifying and/or selecting cells expressing such recombinant receptors, such as anti-CD70 CAR T cells. The disclosure further relates to uses of anti-idiotype antibodies for specifically activating such cells.

The present invention relates to polypeptides containing an antigen-binding domain and a carrying moiety having an inhibiting domain that inhibits the antigen-binding activity of the antigen-binding domain, and having a longer half-life than that of the antigen-binding domain existing alone; methods for producing and screening for the polypeptides; pharmaceutical compositions containing the polypeptide; methods for producing and screening for a single-domain antibody whose antigen-binding activity is inhibited by its association with particular VL, VH or VHH; and fusion polypeptide libraries including a single-domain antibody whose antigen-binding activity is inhibited by its association with particular VL, VH or VHH.

The present invention relates to antagonistic antibodies specifically binding human CD40, polynucleotides encoding the antibodies or antigen-binding fragments thereof, and methods of making and using the foregoing.

The present invention provides recombinant peptides comprising a B cell receptor (BCR) or a fragment thereof, nucleotide molecules encoding same, and vaccines and vectors comprising same; and methods of treating, inducing an immune response against, inducing a regression of, and suppressing a formation of a lymphoma, comprising administering same. The present invention also provides methods of inducing a humoral immune response in an animal against an antigen, comprising administering to the animal a fusion peptide comprising an LLO protein or fragment thereof fused to the antigen.

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.