The present invention relates to: a composition for delivering a viral antigen-derived CD8.sup.+ T cell antigen epitope or a peptide comprising same to the cytoplasm of a target cell to thereby present the epitope or peptide to major histocompatibility complex class I (MHC-1), which is an antigen-presenting molecule on the cell surface; a composition comprising same; and a use thereof.

The present disclosure relates to antibodies that bind human CD19 (“anti-human CD19 antibodies” or “anti-human CD19 antibodies”), compositions comprising such anti-human CD19 antibodies, and methods of using such anti-human CD19 antibodies.

Disclosed are antibodies, including antibody drug conjugates, that specifically bind to NTB-A. Also disclosed are methods for using the anti-NTB-A antibodies to detect or modulate activity of (e.g., inhibit proliferation of) an NTB-A-expressing cell, as well as for diagnoses or treatment of diseases or disorders (e.g., cancer) associated with NTB-A-expressing cells. Further disclosed is a method of treating multiple myeloma using an anti-NTB-A antibody drug conjugate, which optionally includes an anti-NTB-A antibody as disclosed herein.

The present disclosure provides an antibody conjugate that binds specifically to TCR beta constant region (TRBC), wherein the antibody has a fast dissociation rate constant (k.sub.d). It further provides medical uses and methods of personalised medicine that exploit the products of the invention.

The present invention provides an antibody binding to programmed cell death protein 1 (PD-1) or a fragment thereof and a use of the antibody or a fragment thereof in preventing or treating a tumor or cancer. The antibody or a fragment thereof of the present invention can effectively block the interactions of PD-1/PD-L1 and PD-1/PD-L2 and has a unique antigen binding epitope and unique properties in terms of efficacy and safety.

Provided herein are antigen-binding protein constructs capable of specifically binding DLL3 or an epitope of DLL3 presented on the surface of a target mammalian cell, wherein said antigen binding is pH-dependent. Provided are also uses of said antigen-binding protein constructs.

The present application relates to ligands targeted to epidermal growth factor receptor (EGFR) and compositions for use in treating tumors. Specifically, a ligand targeted to EGFR is disclosed. The ligand comprises a heavy chain variable domain and a light chain variable domain. The ligand may be selected from the group consisting of a single chain variable fragment, a fusion protein, a monoclonal antibody, and an antigen-binding fragment thereof. The ligand may be conjugated to a liposome or a nanoparticle that encapsulates at least one chemotherapeutic agent to form a ligand-targeted liposomal or nanoparticle drug. Also disclosed are conjugates and formulations for use in treating tumors such as squamous cell carcinoma of head and neck. A method for making a ligand-targeted liposomal drug is also disclosed. The drug may be a chemotherapeutic agent selected from the group consisting of doxorubicine and vinorelbine.

The present invention describes antibodies that target CD19, wherein the antibodies comprise at least one modification relative to a parent antibody, wherein the modification alters affinity to an FcγR or alters effector function as compared to the parent antibody. Also disclosed are methods of using the antibodies of the invention.

The invention pertains to a heterobifunctional molecule comprising a first and a second binding domain, wherein i) the first binding domain is capable of specific binding to a transmembrane E3 ubiquitin ligase; and ii) the second binding domain is capable of specific binding to a transmembrane protein, wherein simultaneous binding of the heterobifunctional molecule to the transmembrane E3 ubiquitin ligase and the transmembrane protein results in ubiquitination and internalisation of the transmembrane protein. The invention further pertains to the heterobifunctional molecule for use in the treatment of a disease, wherein preferably the disease is at least one of cancer, an auto-immune disease, an inflammatory disease, an infectious disease and a hereditary disease.

Aspects of the disclosure relate to complexes comprising a muscle-targeting agent covalently linked to a molecular payload. In some embodiments, the muscle-targeting agent specifically binds to an internalizing cell surface receptor on muscle cells. In some embodiments, the molecular payload inhibits expression or activity of a DMPK allele comprising a disease-associated-repeat. In some embodiments, the molecular payload is an oligonucleotide, such as an antisense oligonucleotide or RNAi oligonucleotide.