432 results about "Growth factor receptor" patented technology

Disclosed are ligands that have binding specificity for vascular endothelial growth factor (VEGF), for epidermal growth factor receptor (EGFR), or for VEGF and EGFR. Also disclosed are methods of using these ligands. In particular, the use of these ligands for cancer therapy is described.

The present invention relates to quinazoline containing zinc-binding moiety based derivatives that have enhanced and unexpected properties as inhibitors of epidermal growth factor receptor tyrosine kinase (EGFR-TK) and their use in the treatment of EGFR-TK related diseases and disorders such as cancer. The said derivatives may further act as HDAC inhibitors.

The invention relates to a clustered regularly interspaced short palindromic repeats (CRISPR) / Cas guide RNA (gRNA) comprising a targeting domain that is complementary to human genomic Epidermal Growth Factor Receptor (EGFR) DNA, and a vector system including one or more packaged vector(s) including: (a) a first regulatory element operably linked to a gRNA, and (b) a second regulatory element operably linked to a nucleic acid encoding a Cas protein. Also disclosed are methods of altering a nucleic acid sequence encoding EGFR in a cell including contacting the cell with a vector system, methods of treating lung cancer, and methods of selectively inducing apoptosis in a cell including administering a gRNA to the cell.

This invention relates to compounds, compositions, and methods useful for modulating epidermal growth factor receptor (EGFR) (e.g., HER1, HER2, HER3, and / or HER4) gene expression using short interfering nucleic acid (siNA) molecules. This invention also relates to compounds, compositions, and methods useful for modulating the expression and activity of other genes involved in pathways of EGFR gene expression and / or activity by RNA interference (RNAi) using small nucleic acid molecules. In particular, the instant invention features small nucleic acid molecules, such as short interfering nucleic acid (siNA), short interfering RNA (siRNA), double-stranded RNA (dsRNA), micro-RNA (mRNA), and short hairpin RNA (shRNA) molecules and methods used to modulate the expression of EGFR genes, including HER 1, HER2, HER3, and / or HER4. The small nucleic acid molecules are useful in the treatment and diagnosis of cancer.

Methods and compositions for modulating the FGF effect on the sensitivity of malignant and normal cells to anticancer agents are provided. In particular, methods and compositions for inhibiting FGF-induced resistance to a broad spectrum of anticancer agents in solid and soft-tissue tumors, metastatic lesions, leukemia and lymphoma are provided. Preferably, the compositions include at least one FGF inhibitor in combination with a cytotoxic agents, e.g., antimicrotubule agents, topoisomerase I inhibitors, topoisomerase II inhibitors, antimetabolites, mitotic inhibitors, alkylating agents, intercalating agents, agents capable of interfering with a signal transduction pathway (e.g., g., a protein kinase C inhibitor, e.g., an anti-hormone, e.g., an antibody against growth factor receptors), an agent that promotes apoptosis and / or necrosis, and interferon, an interleukin, a tumor necrosis factor, and radiation. In other embodiments, methods and composition for protecting a cell in a subject, from one or more of killing, inhibition of growth or division or other damage caused, e.g., by a cytotoxic agent, are provided. Preferably, the method includes: administering, to the subject, an effective amount of at least one FGF agonist, thereby treating the cell, e.g., protecting or reducing the damage to the dividing cell from said cytotoxic agent.

A method to inhibit the growth of tumors in human patients, comprising treating the human patients with an effective amount of a combination of radiation and a non-radiolabeled protein receptor tyrosine kinase inhibitor, the overexpression of which can lead to tumorigenesis.

The present invention provides a method of treating a breast cancer disease in a patient who has failed prior treatment with an anti-VEGF antibody, comprising administering to the patient a therapeutically effective amount of an anti-HER2 antibody while continuing said anti-VEGF antibody therapy. The invention also provides corresponding pharmaceutical kits and pharmaceutical compositions.

The present invention relates generally to growth factor receptor epitope peptides, particularly EGF family receptor epitope peptides. The invention also relates to the use of the receptor peptides in generating antibodies which have anti-tumor or anti-cancer activity or in stimulating an immunological response. The invention further relates to antibodies specifically directed against the receptor peptides. Methods for generating an immune response and for treatment of tumors and cancer are also provided.

This invention generally relates to compositions and methods for cancer treatment and, in particular, to compositions able to interact (e.g., bind to) with MUC1 growth factor receptor or its ligands, and methods for treating the same. The invention also relates to assays or use of such compositions for the treatment of patients susceptible to or exhibiting symptoms characteristic of cancer or tumorigenesis. Other compositions of the present invention useful for the treatment or prevention of cancer or tumorigenesis include homologs, analogs, derivatives, enantiomers or functional equivalents. The present compositions can also be packaged in kits in some cases.

The present invention relates to novel antibodies capable of binding specifically to the human insulin-like growth factor I receptor IGF-IR and / or capable of specifically inhibiting the tyrosine kinase activity of said IGF-IR receptor, especially monoclonal antibodies of murine, chimeric and humanized origin, as well as the amino acid and nucleic acid sequences coding for these antibodies. The invention likewise comprises the use of these antibodies as a medicament for the prophylactic and / or therapeutic treatment of cancers overexpressing IGF-IR or any pathology connected with the overexpression of said receptor as well as in processes or kits for diagnosis of illnesses connected with the overexpression of the IGF-IR receptor. The invention finally comprises products and / or compositions comprising such antibodies in combination with anti-EGFR antibodies and / or compounds and / or anti-cancer agents or agents conjugated with toxins and their use for the prevention and / or the treatment of certain cancers.

The present invention provides an amido quinazoline derivative which has recipient singal conductance for inhibition of epidermal growth factors with anti-tumor activity. The novel compounds with a structure identical to quinazoline has quite high activity for inhibition of tumor cells, in particular to the remarkable inhibition effects on the growth of tumor cells of EGFR high expression. And the effective inhibition concentration is 5 times higher than the medicine IRESSA on the market.

The present invention provides a compound represented by the following Formula:wherein A is an aryl group or a heteroaryl group, each of which may be substituted; R1 is a group which is bonded through carbon; R2 is hydrogen or an aliphatic hydrocarbon group; and X is —NR3—, —O—, —S—, —SO—, —SO2—, or —CHR3— (wherein R3 is hydrogen or an aliphatic hydrocarbon group), or a salt thereof, or a prodrug thereof, which has growth factor receptor tyrosine kinase inhibitory activity and low toxicity, and is useful for prevention and treatment of cancer, and thus can be sufficiently used as a medicine.

This invention relates to compounds that inhibit protein tyrosine kinase activity. In particular the invention relates to compounds that inhibit the protein tyrosine kinase activity of growth factor receptors, resulting in the inhibition of receptor signaling, for example, the inhibition of VEGF receptor signaling and HGF receptor signaling. More particularly, the invention relates to compounds, compositions and methods for the inhibition of VEGF receptor signaling and HGF receptor signaling. The invention also provides compositions and methods for treating cell proliferative diseases and conditions.

The invention provides synthetic heparin-binding growth factor analogs having at least one peptide chain that binds a heparin-binding growth factor receptor, covalently bound to a hydrophobic linker, which is in turn covalently bound to a non-signaling peptide that includes a heparin-binding domain. The synthetic heparin-binding growth factor analogs are useful as soluble biologics or as surface coatings for medical devices.

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. Claudin-3 and claudin-4 being receptors for Clostridium Perfringens enterotoxin, this toxin may be used as a novel therapeutic agent to treat ovarian serous papillary tumors.

The present invention provides a method of treating a breast cancer disease in a patient who has failed prior treatment with an anti-VEGF antibody, comprising administering to the patient a therapeutically effective amount of an anti-HER2 antibody while continuing said anti-VEGF antibody therapy. The invention also provides corresponding pharmaceutical kits and pharmaceutical compositions.

The present invention relates to methods and compositions for monitoring, diagnosis, prognosis, and determination of treatment regimens in subjects suffering from or suspected of having a renal injury. In particular, the invention relates to using assays that detect one or more markers selected from the group consisting of Cytoplasmic aspartate aminotransferase, soluble Tumor necrosis factor receptor superfamily member 5, soluble CD40 Ligand, soluble C-X-C Motif chemokine 16, S100-A12, Eotaxin, soluble E-selectin, Fibronectin, Granulocyte colony-stimulating factor, Granulocyte-macrophage colony-stimulating factor, Heparin-binding growth factor 2, soluble Hepatocyte growth factor receptor, Interleukin-1 receptor antagonist, Interleukin-1 beta, Interleukin-10, Interleukin-15, Interleukin-3, Myeloperoxidase, Nidogen-1, soluble Oxidized low-density lipoprotein receptor 1, Pappalysin-1, soluble P-selectin glycoprotein ligand 1, Antileukoproteinase, soluble Kit ligand, Tissue inhibitor of metalloproteinase 1, Tissue inhibitor of metalloproteinase 2, soluble Tumor necrosis factor, soluble Vascular cell adhesion molecule 1, and Vascular endothelial growth factor A as diagnostic and prognostic biomarkers in renal injuries.

The purpose of this invention is to provide an agent useful for prevention and / or treatment of psychosis, schizophrenia and cognitive impairments. To solve this problem, this invention provides epidermal growth factor receptor inhibitors as therapeutic agents for psychosis, schizophrenia and cognitive impairments.

A fusion protein for delivery of a wide variety of agents to a cell via antibody-receptor-mediated endocytosis comprises a first segment and a second segment: the first segment comprising a variable region of an antibody that recognizes an antigen on the surface of a cell that after binding to the variable region of the antibody undergoes antibody-receptor-mediated endocytosis, and, optionally, further comprises at least one domain of a constant region of an antibody; and the second segment comprising a protein domain selected from the group consisting of avidin, an avidin mutein, a chemically modified avidin derivative, streptavidin, a streptavidin mutein, and a chemically modified streptavidin derivative. Typically, the antigen is a protein. Typically, the protein antigen on the surface of the cell is a receptor such as a transferrin receptor-or an insulin receptor. The invention also includes an antibody construct incorporating the fusion protein that is either a heavy chain or a light chain together with a complementary light chain or heavy chain to form an intact antibody molecule. The invention further includes targeting methods and screening methods.

The invention relates to the technical field of biology and in particular relates to a specific target polypeptide self-assembled nanoparticle. The nanoparticle is prepared from a hydrophobic anti-tumor drug with a therapeutic dosage and an amphipathic polypeptide which covers the periphery of the hydrophobic anti-tumor drug through a self-assembling manner, wherein the amphipathic polypeptide is a target peptide which can be used for specifically targeting a epidermal growth factor receptor of a tumor cell; a terminal N of the target peptide is coupled with a hydrophobic functional molecule. After the nanoparticle targets the tumor cell, the target peptide is exposed; the nanoparticle targets the tumor cell and enters the tumor cell through receptor-mediated endocytosis, and the drug is released to inhibit DNA (Deoxyribonucleic Acid) synthesis and repairing; the nanoparticle has dual killing effects on the tumor cells and the growth of the tumor cell is inhibited. The amphipathic polypeptide does not generate a covalent bond in a self-assembling process and no reverse reaction is caused; the specific target polypeptide self-assembled nanoparticle is used for treating tumors and has the advantages of no toxin and good biocompatibility.

The present invention relates to quinazoline containing zinc-binding moiety based derivatives that have enhanced and unexpected properties as inhibitors of epidermal growth factor receptor tyrosine kinase (EGFR-TK) and their use in the treatment of EGFR-TK related diseases and disorders such as cancer. The said derivatives may further act as HDAC inhibitors.

The invention provides synthetic heparin-binding growth factor analogs of formulas I or II as given in the specification, having two peptide chains branched from a dipeptide branch moiety composed of at least one and preferably two trifunctional amino acid residues, which peptide chain or chains bind a heparin-binding growth factor receptor. The synthetic heparin-binding growth factor analogs are useful as pharmaceutical agents, soluble biologics or as surface coatings for medical devices.

The invention provides synthetic heparin-binding growth factor analogs having two peptide chains each branched from a branch moiety, such as trifunctional amino acid residues, the branch moieties separated by a first linker of from 3 to about 20 backbone atoms, which peptide chains bind a heparin-binding growth factor receptor and are covalently bound to a non-signaling peptide that includes a heparin-binding domain, preferably by a second linker, which may be a hydrophobic second linker. The synthetic heparin-binding growth factor analogs are useful as pharmaceutical agents, soluble biologics or as surface coatings for medical devices.

This invention relates to growth regulatory proteins expressed in various disease states, especially receptor tyrosine kinases and similar growth factor receptors. Prior to the Applicants invention, it was not clear that specific antibodies could be generated that recognized peptide epitopes comprising phosphotyrosine in the context of its surrounding amino acid sequence. Applicants generated antibodies to such phosphotyrosine specific peptides, distinct from antibodies that recognize only phosphotyrosine itself. The invention includes methods for producing phosphopeptide specific antibodies by removing contaminating antibody specificities by negative and / or positive selections. Phosphospecific antibodies and their uses in immunodetection, diagnostic or therapeutic applications are also disclosed.