The present invention relates to peptides, proteins, nucleic acids and cells for use in immunotherapeutic methods. In particular, the present invention relates to the immunotherapy of cancer. The present invention furthermore relates to tumor-associated T-cell peptide epitopes, alone or in combination with other tumor-associated peptides that can for example serve as active pharmaceutical ingredients of vaccine compositions that stimulate anti-tumor immune responses, or to stimulate T cells ex vivo and transfer into patients. Peptides bound to molecules of the major histocompatibility complex (MHC), or peptides as such, can also be targets of antibodies, soluble T-cell receptors, and other binding molecules.

The invention generally relates to antibodies that bind to human folate receptor 1 and diagnostic assays for folate receptor 1-based therapies. Methods of using the antibodies to monitor therapy are further provided.

The present invention relates to dimers comprising a first polypeptide and a second polypeptide, wherein each of said first and second polypeptide comprises at least one immunoglobulin single variable domain (ISVD) and a C-terminal extension comprising a cysteine moiety (preferably at the C-terminus), wherein said first polypeptide and said second polypeptide are covalently linked via a disulfide bond between the cysteine moiety of said first polypeptide and the cysteine moiety of said second polypeptide, in which the dimer outperformed the benchmark constructs, e.g. cognate multivalent and multispecific constructs, in various assays. The present invention provides methods for making the dimers of the invention.

The present invention relates to therapeutic immunoconjugates comprising SN-38 attached to an antibody or antigen-binding antibody fragment. The antibody may bind to EGP-1 (TROP-2), CEACAM5, CEACAM6, CD74, CD19, CD20, CD22, CSAp, HLA-DR, AFP or MUC5ac and the immunoconjugate may be administered at a dosage of between 4 mg/kg and 24 mg/kg, preferably 4, 6, 8, 9, 10, 12, 16 or 18 mg/kg. When administered at specified dosages and schedules, the immunoconjugate can reduce solid tumors in size, reduce or eliminate metastases and is effective to treat cancers resistant to standard therapies, such as radiation therapy, chemotherapy or immunotherapy.

This invention provides compositions and methods to prevent aberrant cell proliferation in a subject using a single-domain antibody (sdAb) directed against an intracellular component, wherein the aberrant cell proliferation can be cancer. The sdAb is synergistic with one or more chemotherapeutic drugs and improves therapeutic efficacy of the one or more chemotherapeutic drug against cancer. The invention also includes a method of treating viral infections using a sdAb, wherein the sbAb inhibits the replication of viruses such as Ebola virus and Zika virus in infected cells.

Cancer patients make antibodies to tumor-derived proteins that are potential biomarkers for early detection. Twenty-eight antigens have been identified as potential biomarkers for the early detection of basal-like breast cancer (Tables 1, 2). Also, a 13-AAb classifier has been developed that differentiate patients with BLBC from healthy controls with 33% sensitivity at 98% specificity (Table 3).

As an antitumor drug which is excellent in terms of antitumor effect and safety and has an excellent therapeutic effect, there is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-HER2 antibody via a linker having a structure represented by the following formula: -L.sup.1-L.sup.2-L.sup.P-NH—(CH.sub.2)n.sup.1-L.sup.a-(CH.sub.2)n.sup.2-C(═O)— wherein the anti-HER2 antibody is connected to the terminal L.sup.1, and the antitumor compound is connected to the carbonyl group of the —(CH.sub.2)n.sup.2-C(═O)— moiety with the nitrogen atom of the amino group at position 1 as the connecting position. ##STR00001##

Described are antibodies that specifically bind to the Axl protein and inhibit the interaction between Axl and the Axl-ligand, Gas6. Also disclosed are methods for the production and use of the anti-Axl antibodies.

The present invention provides isolated monoclonal antibodies, particularly human antibodies, that bind to human Cluster of Differentiation 73 (CD73) with high affinity, and inhibit the activity of CD73, and optionally mediate antibody dependent CD73 internalization. Nucleic acid molecules encoding the antibodies of the invention, expression vectors, host cells and methods for expressing the antibodies of the invention are also provided. Immunoconjugates, bispecific molecules and pharmaceutical compositions comprising the antibodies of the invention are also provided. The invention also provides methods for inhibiting the growth of a tumor cell expressing CD73 using the antibodies of the invention, including methods for treating various cancers.

The invention provides anti-HER2 antibodies and immunoconjugates and methods of using the same.