Abstract:
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.
Abstract:
The present invention provides a method to achieve radioisotopic localization at tumor sites, i.e., a method of enhancing radiolabeled ligand localization to a tumor in an individual in need of such treatment, comprising the steps of: transducing said tumor with a gene encoding a membrane expressed protein unique to said tumor; and administering to said individual a radiolabeled ligand which specifically binds to said protein. The use of gene therapy technology to induce expression of high affinity membrane molecules/receptors can enhance the specificity of radioisotope localization while the use of radioactive isotopes with the ability to deliver radiation damage across several cell diameters will compensate for less than perfect transduction efficiency.
Abstract:
Provided herein are antagonists or binding agents of an abnormal vasopressin receptor V2 (e.g., AbnV2), such as antibodies and antigen-binding portions thereof specific for the receptor, for identifying and targeting cancer cells expressing such abnormal vasopressin receptor V2. Additionally provided are methods of using said antagonists or binding agents, for example, to image cancer cells or in biological samples, or diagnose cancers, both in vivo and in vitro. The antagonists or binding agents may also be used for treating patients suffering from a cancer expressing the abnormal vasopressin receptor V2, such as small cell lung cancer (SCLC), breast cancer, or ovarian cancer.
Abstract:
The present invention provides compositions and method for increasing expression of opioid receptors. Generally, the compositions include and opioid receptor inducing compound and, optionally, an opioid receptor ligand. Generally, the methods include contacting a cell with an amount of an opioid receptor inducing compound effective for inducing expression of the opioid receptor and, optionally, contacting the cell with an opioid receptor ligand.
Abstract:
Die vorliegende Erfindung betrifft Immunkonjugate aus Eidotter-Antikörpern (IgY), deren Konfektionierung und Anwendung in Diagnostik und Therapie. Aufgabe der vorliegenden Erfindung ist es, alternative Produkte zu herkömmlichen Immunkonjugaten für den diagnostischen und therapeutischen Einsatz vorzuschlagen. Die erfindungsgemäßen Immunkonjugate sind den monoklonalen Antikörpern und Immunseren aus Säugetieren sowie den IgY-Präparationen aus herkömmlichen Hühnern hinsichtlich Reinheit und Antigen-Targeting überlegen. Die Bildung von humanen anti-IgY-Antikörpern soll zudem möglichst vermieden werden, und die Immunkonjugate sollen sich tierschutzgerecht und in großen Mengen preisgünstig herstellen lassen. Die Aufgabe wird erfindungsgemäß gelöst durch polyklonale IgY-Konjugate aus intakten Eidotter-Antikörpern (IgY), IgY-Fragmenten, Fab-Konstrukten oder humanisierten Eidotter-Antikörpern vom SPF-Huhn, vorzugsweise vom transgenen SPF-Huhn. Die Antikörper bzw. Antikörperfragmente sollen als immunologisch wirksame Komponente mit mindestens einer weiteren Komponente konjugiert sein, wobei es sich um einen Signalstoff, einen Wirkstoff oder ein Verstärker-Molekül handeln kann.
Abstract:
The present invention provides methods and compositions for detecting and treating malignant tissue, organs or cells in a mammal. The method comprises parenterally injecting a mammalian subject, at a locus or by a route providing access to the tissue or organ, with a composition comprising an antibody/fragment that is tagged with a fluorophore and a therapeutic isotope molecule, which specifically binds to the targeted organ, tissue or cell.
Abstract:
The invention relates to immunoconjugates made of egg-yolk antibodies (IgY), the production and use thereof in diagnoses and therapy. The aim of the invention is to provide alternative products to traditional immunoconjugates for use in diagnoses and therapy. The inventive immunoconjugates are superior to monoclonal antibodies and immune serums from mammals in addition to IgY preparations from conventional hens in terms of purity and antigen targeting. The invention seeks to avoid the formation of human anti-IgY antibodies as far as possible, and to produce immunoconjugates in large quantities at a low price in a manner which is compatible with animal welfare. This is achieved by polyclonal IgY conjugates from intact egg-yolk antibodies (IgY), IgY fragments, Fab constructions or humanized egg-yolk antibodies form SPF hens, preferably from transgenic SPF hens. The antibodies or antibody fragments are conjugated as immunologically effective components with at least one other component such as a signaling substance, an active substance or an amplifier module.
Abstract:
The present invention provides a method to achieve radioisotopic localization at tumor sites, i.e., a method of enhancing radiolabeled ligand localization to a tumor in an individual in need of such treatment, comprising the steps of: transducing said tumor with a gene encoding a membrane expressed protein unique to said tumor; and administering to said individual a radiolabeled ligand which specifically binds to said protein. The use of gene therapy technology to induce expression of high affinity membrane molecules/receptors can enhance the specificity of radioisotope localization while the use of radioactive isotopes with the ability to deliver radiation damage across several cell diameters will compensate for less than perfect transduction efficiency.
Abstract:
This invention relates to antibody drug conjugates (ADC), antibody conjugates (AC) and novel antibodies. Particularly, the ADC, AC and antibodies disclosed herein specifically bind to the human anti-Mullerian hormone type II receptor (AMHR-II) and can be used to treat and/or identify AMHR-II expressing cancers, such as prostate cancer, breast cancer and gynecologic cancers expressing AMHR-II, such as ovarian cancer, in particular metastatic ovarian cancer, serous cancer, hypernephroma, endometrioid, colloidal epithelium, prostate cancer, germ cell cancer, endometrial cancer, mixed Mullerian malignant tumor of the uterus, leiomyosarcoma, or endometrial stromal sarcoma.
Abstract:
Provided herein are antagonists or binding agents of an abnormal vasopressin receptor V2 (e.g., AbnV2), such as antibodies and antigen-binding portions thereof specific for the receptor, for identifying and targeting cancer cells expressing such abnormal vasopressin receptor V2. Additionally provided are methods of using said antagonists or binding agents, for example, to image cancer cells or in biological samples, or diagnose cancers, both in vivo and in vitro. The antagonists or binding agents may also be used for treating patients suffering from a cancer expressing the abnormal vasopressin receptor V2, such as small cell lung cancer (SCLC), breast cancer, or ovarian cancer.