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.

Methods for treating a hematological disease or disorder or a solid cancer by administering an effective amount of a combination immunotherapy including an antibody against an epitope of CD33 and an antibody against an epitope of CD38 are disclosed. One or both of the anti-CD33 and anti-CD38 antibodies may be labeled with a radioisotope. The antibodies may be administered sequentially or simultaneously. Moreover, each antibody may be administered according to a specific dosing schedule, wherein the administration may be sequential (i.e., one antibody dosing schedule is completed before the next antibody dosing schedule is started) or simultaneous.

Methods for developing disease-related nanobodies and related products and kits are provided. The disease-specific proteins are extracellular matrix (ECM) proteins, domains or epitopes that are associated with various aspects of disease and are not present, or are present in very low quantities, in non-diseased individuals. Highly effective nanobodies capable of specifically binding to these ECM protein epitopes useful in in vivo imaging assays, the detection, diagnosis and treatment of diseases as well as monitoring therapeutic progress in a patient with a disease are provided herein.

A process is for preparing a site-specific bioconjugated antibody of a formula (I): Ab-(Linker-Chelator)n (I). The Linker is an oligopeptide with an N-terminal end. The Chelator is a metal chelating agent. n is a Chelator-to antibody ratio (CAR), wherein 0<n≤2. The process includes enzymatic deglycosylation of the antibody; coupling of the obtained deglycosylated antibody with a compound of a formula (A): Linker-Chelator (A) in the presence of a transglutaminase. The Linker is bound to the Ab at its N-terminal end, and comprising a sequence chosen among (*G-G-G), (*K-G-G) and (*A-K-A), where * denotes the N-terminal end of the Linker which is covalently bound to the Ab.

Isolated human monoclonal antibodies which bind to human CD74 and related antibody-drug conjugates are disclosed. Pharmaceutical compositions comprising the antibodies or antibody-drug conjugates, and therapeutic and diagnostic methods for using the antibodies and/or antibody-drug conjugates, are also disclosed.

Provided herein is a one-step method for chelating actinium-225 to a construct comprising a chelator linked to a bio-molecule, such as, an antibody or monoclonal antibody, via a bifunctional ligand in, for example, a 3-arm configuration. Also provided are methods for increasing the radiochemical yield of an actinium-225-chelant-biomolecule complex and for producing a high specific activity actinium-225 complex. The chelation is performed at a physiological temperature, about 37° C. Also provided are high specific activity actinium-225 complexes, that is, actinium-225 chelated to the chelator-biomolecule construct and pharmaceutical compositions thereof. Further provided are methods of treating a neoplastic disease or disorder with the actinium-225 complexes.

Anti-CD8 antibodies, radiolabeled anti-CD8 antibodies, fluorescently labeled anti-CD8 antibodies and their use in imaging are provided herein. Included are methods of detecting the presence of CD8 proteins in a subject or sample.

The present disclosure sets forth novel compounds and compositions including heteroaromatic silicon-fluoride-acceptors, which are useful for PET scanning. The present disclosure further includes novel methods of .sup.8F imaging for PET scanning, the methods comprising the preparation of conjugates and bioconjugates of biological ligands of interest with heteroaromatic silicon-fluoride-acceptors. In certain embodiments the invention is practiced in the form of a kit.

Macrocyclic chelators for chelation of alpha-emitting radiometal ions, such as actinium-225 are provided. Also provided are radiometal complexes containing an alpha-emitting radiometal ion bound to the macrocyclic chelator via coordinate bonding, and radioimmunoconjugates containing the radiometal complexes covalently linked to a targeting ligand, such as an antibody or antigen binding fragment thereof. The radioimmunoconjugates can be produced by click chemistry reactions. Methods of using the radiocomplexes and radioimmunoconjugates for selectively targeting neoplastic cells for radiotherapy and for treating neoplastic diseases and disorders are also described.

Provided herein, in some embodiments, are methods and compositions (e.g., cell compositions) for the treatment of cancer.