The present invention relates, in part, to chimeric proteins or chimeric protein complexes, such as Fc-based chimeric protein complexes, comprising interferon alpha 1, or a variant thereof, and their use as therapeutic agents.

Provided are compositions and methods for improving tumor penetrability of anti-tumor antibodies or conjugates thereof. The method comprises administering to an individual in need of treatment an anti-idiotypic antibody in addition to the anti-tumor antibody or conjugate. Examples are provided for anti-HER2 antibodies and anti-idiotypic antibodies that are directed to the anti-HER2 antibodies.

The present invention relates to antibody-based molecules, including full-length antibodies, antigen-binding domains thereof, and antibody derivatives that are capable of binding to and activating human muscle-specific tyrosine protein kinase (MuSK). The present invention further discloses methods of treating neuromuscular conditions using the aforementioned MuSK antibodies.

The present invention relates to a fusion protein comprising: —a N-terminal domain which comprises an antibody which is a variable domain of a camelid heavy-chain antibody (VHH) or a single chain variable fragment (scFV) and which is directed against an immunoglobulin and —a C-terminal domain which comprises a polypeptide with a luciferase activity: —having the amino acid sequence SEQ ID NO: 1 or —having at least 80% amino acid sequence identity to the amino acid sequence SEQ ID NO: 1.

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.

Agents comprising at least two moieties separated by a linker, wherein a first moiety binds mCD28 on a surface of a cell and inhibits proteolytic cleavage of the mCD28 and wherein a second moiety increases stability of the first moiety are provided. Methods of treating cancer and improving immunotherapy comprising administering the agents are also provided.

The present disclosure provides monoclonal antibodies against protein programmed cell death 1 (PD-1), which can block the binding of PD-1 ligands to PD-1, and therefore block the inhibitory function of PD-1 ligands on PD-1 expressing T cells. The antibodies of disclosure provide very potent agents for the treatment of multiple cancers via modulating human immune function

The present invention relates to compositions and methods for the prevention or the treatment of prostate cancer, wherein said compositions comprise an antibody binding to progastrin and said methods comprise the use of an antibody binding to progastrin.

Disclosed is the use of a radiolabeled anti-nanobody in the prognosis and diagnosis of cancers. In particular, disclosed is an immunoconjugate for detecting a PD-L1 molecule. The immunoconjugate comprises the VHH chain of a specific anti-PD-L1 nanobody and a radionuclide, and can be used for non-invasive detecting of expression of the object PD-L1 to be detected. The immunoconjugate of the invention has small size and high specificity, and is suitable for systemic detection which simultaneously targets primary and metastatic tumors, and has high accuracy and low radiation dose.

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.