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 (1ISVD) 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.

Prosthetic compounds are disclosed that are effective for radiolabeling biomolecules with 18F. Representative biomolecules include antibodies (e.g., monoclonal antibodies (mAbs) and nanobodies (sdAbs)), antibody fragments, and peptides that may have an affinity for particular types of cells, such as cancer cells. The prosthetic compounds effectively address the art-recognized difficulties associated with the retention of radioactivity within the targeted cells, due to internalization of the biomolecule, followed by proteolytic degradation. Representative prosthetic compounds include (i) a succinimidyloxycarbonyl moiety, (ii) a radioactive moiety bearing 18F, and (iii) a charged moiety, i.e., a moiety that is charged under the physiological conditions of the internal cell environment.

The problem to be solved is to provide an anti-human MUC1 antibody Fab fragment that is expected to be useful in the diagnosis and/or treatment of a cancer, particularly, the diagnosis and/or treatment of breast cancer or bladder cancer, and a diagnosis approach and/or a treatment approach using a conjugate comprising the Fab fragment. The solution is an anti-human MUC1 antibody Fab fragment comprising a heavy chain fragment comprising a heavy chain variable region consisting of the amino acid sequence represented by SEQ ID NO: 8 or 10, and a light chain comprising a light chain variable region consisting of the amino acid sequence represented by SEQ ID NO: 12, and a conjugate comprising the Fab fragment.

The invention provides a method for the formation of a tissue-targeting thorium complex, said method comprising; a) forming an octadentate chelator comprising four hydroxypyridinone (HOPO) moieties, substituted in the N-position with a C.sub.1-C.sub.3alkyl group, and a coupling moiety terminating in a carboxylic acid group; b) coupling said octadentate chelator to at least one tissue-targeting peptide or protein comprising at least one amine moiety by means of at least one amide-coupling reagent whereby to generate a tissue-targeting chelator; and c) contacting said tissue-targeting chelator with an aqueous solution comprising an ion of at least one alpha-emitting thorium isotope. A method of treatment of a neoplastic or hyperplastic disease comprising administration of such a tissue-targeting thorium complex, as well as the complex and corresponding pharmaceutical formulations are also provided.

The invention discussed in this application relates to hydroxamic acid-based compounds that are useful as imaging agents when bound to an appropriate metal centre, particularly for the imaging of tumours.

The invention provides a method for the formation of a tissue-targeting thorium complex, said method comprising; a) forming an octadentate chelator comprising four hydroxypyridinone (HOPO) moieties, substituted in the N-position with a methyl group, and a coupling moiety terminating in a carboxylic acid group; b) coupling said octadentate chelator to at least one tissue-targeting moiety targeting HER2; and c) contacting said tissue-targeting chelator with an aqueous solution comprising an ion of at least one alpha-emitting thorium isotope. A method of treatment of a neoplastic or hyperplastic disease comprising admistration of such a tissue-targeting thorium complex, as well as the complex and corresponding pharmaceutical formulations are also provided.

Disclosed is a method for predicting the optimal amounts of radiopharmaceutical and/or chemotherapy agents to administer to a patient, by determining the level of saturation of the therapeutic agents in the patient's cells. The method comprises measuring cellular incorporation of the candidate therapeutic agents in a target cell population on a cell-by-cell basis. The method is able to identify an optimal cocktail of therapeutic agents for treatment of a disease. A method of high-throughput drug discovery incorporating this method, and a 2-stage targeting method of treating a disease using this method are also disclosed.

The present invention relates to a novel anti-CD146 antibody and derivatives thereof. The antibody and/or derivatives can be used for therapy and/or imaging, diagnosis and/or immunostaining.

This invention relates to monovalent and multivalent, monospecific binding proteins and to multivalent, multispecific binding proteins. One embodiment of these binding proteins has one or more binding sites where each binding site binds with a target antigen or an epitope on a target antigen. Another embodiment of these binding proteins has two or more binding sites where each binding site has affinity towards different epitopes on a target antigen or has affinity towards either a target antigen or a hapten. The present invention further relates to recombinant vectors useful for the expression of these functional binding proteins in a host. More specifically, the present invention relates to the tumor-associated antigen binding protein designated RS7, and other EGP-1 binding-proteins. The invention further relates to humanized, human and chimeric RS7 antigen binding proteins, and the use of such binding proteins in diagnosis and therapy.

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 (1ISVD) 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.