37 results about "Matriptase" patented technology

Gene expression profiling and hierarchial clustering analysis readily distinguish normal ovarian epithelial cells from primary ovarian serous papillary carcinomas. Laminin, tumor-associated calcium signal transducer 1 and 2 (TROP-1 / Ep-CAM; TROP-2), claudin 3, claudin 4, ladinin 1, S100A2, SERPIN2 (PAI-2), CD24, lipocalin 2, osteopontin, kallikrein 6 (protease M), kallikrein 10, matriptase and stratifin were found among the most highly overexpressed genes in ovarian serous papillary carcinomas, whereas transforming growth factor beta receptor III, platelet-derived growth factor receptor alpha, SEMACAP3, ras homolog gene family, member I (ARHI), thrombospondin 2 and disabled-2 / differentially expressed in ovarian carcinoma 2 (Dab2 / DOC2) were significantly down-regulated. Therapeutic strategy targeting TROP-1 / Ep-CAM by monoclonal chimeric / humanized antibodies may be beneficial in patients harboring chemotherapy-resistant ovarian serous papillary carcinomas.

Binding proteins, such as fully human monoclonal antibodies and fragments thereof, directed to the antigen Matriptase and uses of such binding proteins are disclosed. Nucleotide sequences encoding, and amino acid sequences comprising heavy and light chain immunoglobulin molecules capable of binding to Matriptase are also disclosed. The invention also discloses cell lines expressing such immunoglobulin molecules and monoclonal antibodies to Matriptase. The antibodies can be used to detect, prevent, and treat diseases such as cancer.

The present disclosure concerns peptides and peptidomimetics having inhibitory activity against serine proteases. The disclosed peptides and peptidomimetics are particularly useful as selective inhibitors of matriptase and MTSP1. Pharmaceutical compositions comprising serine protease inhibitors and methods for administering the compositions also are disclosed.

The invention is directed to a method of detecting a malignancy or a pre-malignant lesion in breast or other tissue, or a pathologic condition, by detecting the presence of single-chain or two-chain forms of matriptase in the tissue. The invention is further directed to a method of treating malignancies, which have the phenotype of matriptase production by administering a tumor formation inhibiting effective amount of concentrate of Bowman-Birk inhibitor (BBIC), or other matriptase inhibitor. The invention also is directed to nucleic acids encoding a matriptase protein or fragments thereof, and their use for structure elucidation and modeling to identify other inhibitors of matriptase, as well as to methods of identifying matriptase modulating agents, including activators and inhibitors.

The invention involves peptides of from about 7 to about 50 amino acid residues in length that have epitopes that bind to more than one HLA class II protein and stimulate CD4+ T cells for treatment of cancer from one of three serine proteases overexpressed in ovarian cancer and other cancers—stratum corneum chymotryptic enzyme, matriptase, and hepsin. Since the peptides bind to more than one HLA class II protein variant, they can be used to treat cancer in most patients of a population having a variety of HLA class II alleles. The peptides can be loaded onto autologous dendritic cells of a cancer patient and infused into the patient to activate a CD4+ and CD8+ T cell response that recognizes tumor cells expressing the peptide antigen.

Gene expression profiling and hierarchal clustering analysis readily distinguish normal ovarian epithelial cells from primary ovarian serous papillary carcinomas. Laminin, tumor-associated calcium signal transducer 1 and 2 (TROP-1 / Ep-CAM; TROP-2), claudin 3, claudin 4, ladinin 1, S100A2, SERPIN2 (PAI-2), CD24, lipocalin 2, osteopontin, kallikrein 6 (protease M), kallikrein 10, matriptase and stratifin were found among the most highly overexpressed genes in ovarian serous papillary carcinomas, whereas transforming growth factor beta receptor III, platelet-derived growth factor receptor alpha, SEMACAP3, ras homolog gene family, member I (ARHI), thrombospondin 2 and disabled-2 / differentially expressed in ovarian carcinoma 2 (Dab2 / DOC2) were significantly down-regulated. Therapeutic strategy targeting TROP-1 / Ep-CAM by monoclonal chimeric / humanized antibodies may be beneficial in patients harboring chemotherapy-resistant ovarian serous papillary carcinomas.

The present invention provides matriptase inhibitors and compositions for treating and preventing orthomyxovirus infections such as flu infections. The present invention also provides novel compounds, compositions, methods of use, uses and kits thereof for inhibiting matriptase. Such compounds are useful for treating and preventing orthomyxovirus infections, such as flu infections, and for inhibiting tumor growth, progression and / or metastasis.

The present invention relates to matriptase antibodies and immunoconjugates of matriptase antibodies with cytotoxic agents and the use thereof for killing or inhibiting the growth of matriptase-expressing cancer cells, such as those of multiple myeloma and breast cancers. In particular, immunoconjugates comprising a matriptase monoclonal antibody and anticancer agents such as auristatin, including monomethyl auristatin E (MMAE) and monomethyl auristatin F (MMAF) are introduced, which have potent antitumor activity in vivo. Moreover, importantly; there was no weight loss or other evidence of toxicity in the animals, indicating that no significant free drug was released into the circulation from the conjugate. The present invention also provides compositions comprising these new immunoconjugates and use of them for treatment of malignancies comprising cells that express matriptase. In addition, administration of a matriptase antibody or immunoconjugates of a matriptase antibody and a cytotoxic agent in combination with administration of an immunomodulatory agent, such as thalidomide or an analog thereof, provides a more effective treatment of these cancers.

The invention discloses an application of Matriptase. The Matriptase comprises a short intracellular segment, a transmembrane region, an SEA (sea urchin sperm protein, enteropeptidase, agrin domain) region, two CUB (Cls / Clr, urchin embryonic growth factor and bone morphogenetic protein-1) regions, four low density lipoprotein acceptor domains and a C-terminal trypsin-like protease region. The Matriptase is applied to diagnosis and treatment of chronic lymphocyte leukemia. By an experiment, bone marrows and peripheral blood specimens of normal people and leukemia sufferers are collected, and the detection result shows as follows: Matriptase mRNA and protein are highly expressed in the chronic lymphocyte leukemia sufferers, the expression level of Matriptase of the surface of lymphocyte can serve as a molecular marker for diagnosis of chronic lymphocyte leukemia, and the Matriptase can serve as a novel target for diagnosis and treatment of chronic lymphocyte leukemia.

The present invention provides compounds which inhibit serine protease activity of matriptase or MTSP1. Also provided are pharmaceutical compositions comprising those compounds and methods of using the compounds and pharmaceutical compositions to treat conditions ameliorated by inhibition of matriptase or MTSP1.

The present application pertains inter alia to an isolated vertebrate cell suitable for recombinant expression of a polypeptide of interest, wherein the vertebrate cell is altered to impair the function of the endogenous protease matriptase and wherein said cell comprises at least one heterologous polynucleotide encoding a polypeptide of interest and wherein the polypeptide of interest is secreted by the cell. It was found that using respective vertebrate cells for producing a recombinant polypeptide of interest significantly reduces clipping of the polypeptide of interest that is secreted into the cell culture medium. Also provided are improved production and screening methods.

The present invention provides methods and compositions for treatment, screening, diagnosis, prognosis and therapy of breast cancer, colorectal cancer, esophageal cancer, gastric cancer, prostate cancer and uterine cancer, for monitoring the effectiveness of breast cancer, colorectal cancer, esophageal cancer, gastric cancer, prostate cancer and uterine cancer treatment, and for drug development.

A compound of formula (I) wherein R1 to R15, P1, P2, A, B and Q are as defined in the claims and pharmaceutically acceptable salts and esters thereof, are disclosed. The compounds of formula (I) possess utility as matriptase inhibitors and are useful in the treatment of matriptase dependent conditions, particularly cancer.

The present invention relates to anti-matriptase antibodies and immunoconjugates of anti-matriptase antibodies with cytotoxic agents and the use thereof for killing or inhibiting the growth of matriptase-expressing cancer cells, such as those of multiple myeloma and breast cancers. In particular, immunoconjugates comprising an anti-matriptase monoclonal antibody and anticancer agents such as auristatin, including monomethyl auristatin E (MMAE) and monomethyl auristatin F (MMAF) are introduced, which have potent antitumor activity in vivo. Moreover, importantly; there was no weight loss or other evidence of toxicity in the animals, indicating that no significant free drug was released into the circulation from the conjugate. The present invention also provides compositions comprising these new immunoconjugates and use of them for treatment of malignancies comprising cells that express matriptase. In addition, administration of an anti-matriptase antibody or immunoconjugates of an anti-matriptase antibody and a cytotoxic agent in combination with administration of an immunomodulatory agent, such as thalidomide or an analog thereof, provides a more effective treatment of these cancers.