568 results about "Integrin" patented technology

Described are conjugates formed by an antibody fragment covalently attached to a non-proteinaceous polymer, wherein the apparent size of the conjugate is at least about 500 kD. The conjugates exhibit substantially improved half-life, mean residence time, and/or clearance rate in circulation as compared to the underivatized parental antibody fragment. Also described are conjugates directed against human vascular endothelial growth factor (VEGF), human p185 receptor-like tyrosine kinase (HER2), human CD20, human CD18, human CD11a, human IgE, human apoptosis receptor-2 (Apo-2), human tumor necrosis factor-α (TNF-α), human tissue factor (TF), human α4β7 integrin, human GPIIb-IIIa integrin, human epidermal growth factor receptor (EGFR), human CD3, and human interleukin-2 receptor α-chain (TAC) for diagnostic and therapeutic applications.

A method is described for generating blended nucleic acid ligands containing non-nucleic acid functional units. Specifically, a SELEX identified RNA ligand to the integrin gpIIbIIIa is conjugated to the peptide Gly-Arg-Gly-Asp-Thr-Pro (SEQ ID NO:1). This blended RNA ligand inhibits the biological activity of gpIIbIIIa with high specificity. Also described is a single-stranded DNA ligand to elastase coupled to N-methoxysuccinyl-Ala-Ala-Pro-Val-chloromethyl (SEQ ID NO:3) ketone. This elastase blended nucleic acid ligand inhibits the biological activity of elastase.

Anti-angiogenic peptides that inhibit activation or proliferation of endothelial cells are disclosed. Such peptides may be used to inhibit VEGF binding to the VEGFR2 receptor (also known as the kinase domain receptor or KDR) and bFGF binding to its receptor. Such peptides may also be used to inhibit, VEGF, bFGF, or integrin activation of endothelial cells in angiogenesis-associated diseases such as cancer, leukemia, multiple myeloma, inflammatory diseases, eye diseases and skin disorders.

The present invention relates to a humanized immunoglobulin that has binding specificity for α4β7 integrin and comprises the complementarity determining regions (CDRs) of mouse Act-1 antibody, and to the humanized light chain of the humanized immunoglobulin. The present invention further relates to a humanized immunoglobulin light chain. The invention also relates to isolated nucleic acids, recombinant vectors and host cells that comprise a sequence which encodes a humanized immunoglobulin or immunoglobulin light chain, and to a method of preparing a humanized immunoglobulin. The humanized immunoglobulins can be used in therapeutic applications, for example to control lymphocyte infiltration to mucosal tissue or to treat inflammatory bowel disease.

The present invention relates to novel Fc variants of antibodies that immunospecifically binds to Integrin α_vβ₃. The Fc variants comprise a variable region that immunospecifically binds to Integrin α_vβ₃ and a Fc region that further comprises at least one novel amino acid residue which may provide for enhanced effector function. More specifically, this invention provides Fc variants that have modified binding affinity to one or more FcγR and/or C1q. Additionally, the Fc variants have altered antibody dependent cell-mediated cytotoxicity (ADCC) and/or complement dependent cytotoxicity (CDC) activity. The invention further provides methods and protocols for the application of said Fc variants of an antibody that immunospecifically binds to Integrin α_vβ₃, particularly for therapeutic purposes.

A method is provided for diagnosing and monitoring kidney disease or a predisposition to kidney disease, in a subject comprising detecting pVHL, VEGF-A, CXCR4, integrin β-1, PDGF-A, HIF1α and/or TGFβ in a sample from the subject. Screening methods for test agents for inhibiting kidney disease, and therapeutic applications are also described.

A method for the inhibition of the binding of .alpha..sub.4.beta..sub.1 integrin to its receptors, for example VCAM-1 (vascular cell adhesion molecule-1) and fibronectin; compounds that inhibit this binding; pharmaceutically active compositions comprising such compounds; and the use of such compounds either as above, or in formulations for the control or prevention of diseases states in which .alpha..sub.4.beta..sub.1 is involved.

The present application is directed to radiolabeled cyclic peptidomimetics, pharmaceutical compositions comprising radiolabeled cyclic peptidomimetics, and methods of using the radiolabeled cyclic peptidomimetics. Such peptidomimetics can be used in imaging studies, such as Positron Emitting Tomography (PET) or Single Photon Emission Computed Tomography (SPECT).

The present invention relates to methods of treating retinopathy, retinal ischemia and/or retinal edema comprising administering an integrin or integrin subunit antagonist, leukocyte adhesion-inducing cytokine antagonist or growth factor antagonist, a selectin antagonist or adhesion molecule antagonist.

Disclosed are compositions and methods for reducing the proliferation of cancer cells through targeted interactions with integrins.

The present invention provides a method of screening substances having property of causing apoptosis, and relates to a method of screening substances having property of causing apoptosis characterized by using cells which are expressing IAP (Integrin Associated Protein), and the relates to above screening method, wherein the cells used are myeloid cells, and relates to pharmaceutical compositions containing as the active ingredient the substances obtained by the above method, and the present invention makes it possible to differentiate, identify and screen readily and highly efficiently the substances, such as antibodies and the like, that have property of causing apoptosis on myeloid cells by using cells which are expressing IAP while using specific binding reactions of the substances, and the above specific substances thus obtained can be used by virtue of their characteristics as the active ingredient of pharmaceutical compositions such as anticancer agents and medicines for myelocytic leukemia and the like.

The present invention is in the fields of cell biology, immunology and oncology. The invention provides humanized antibodies that recognize α_vβ₆ integrins, which antibodies comprise a variable region of nonhuman origin and at least a portion of an immunoglobulin of human origin. The invention also provides methods for preparation of such antibodies, pharmaceutical compositions comprising them, and methods of treating, diagnosing and/or preventing various diseases and disorders by administering the humanized anti-α_vβ₆ antibodies of the invention. The invention also relates to the identification of differential expression of the integrin α_vβ₆ on the surfaces of tumor cells and tissues, the use of this differential expression in determining the metastatic potential of tumor cells, and methods of diagnosis and treatment/prevention of tumor metastasis and for elimination of residual metastatic tumor cells using ligands, particularly antibodies, that bind to integrin α_vβ₆.

The invention provides therapeutic or diagnostic antibodies with modified N— or C-terminal sequences that are enriched with lysine or tyrosine residues. These lysine or tyfosine residues can be used to couple radioisotopes, cytotoxic agents, or detectable labels. The increased stoichiometric ratios of these agents in the antibody conjugates lead to improved therapeutic efficacy or enhanced detection sensitivity. Non-limiting examples of antibodies suitable for the present invention include anti-CD22, anti-ErbB2, anti-VEGF, anti-EGFR, anti-VEGFR, anti-Her-3, anti-Her-4, anti-CEA, anti-CTLA-4, anti-CD4, anti-CD3, anti-CD20, anti-TNF-a, anti-CD11a, anti-Lewis Y antigen, anti-TrailR, anti-IL2R, anti-CD30, anti-CD146, anti-CD147, anti-alpha V integrin beta, anti-CD19, anti-GD2, anti-3H11, anti-EBV, anti-HIV, anti-HBV, anti-HCV, and other disease-specific antibodies.

Antibodies that specifically bind to VLA-1 integrin and methods of using these antibodies to treat immunological disorders in a subject. Also included are crystal structures of complexes formed by VLA-1 antibodies and their ligands, and VLA-1 antagonists and agonists identified by using the structure coordinates of these structures.

A method of treating glaucoma is described herein. The method includes the steps of providing an ultrasonic device that emits ultrasonic energy, holding the ultrasonic device at a location external to the trabecular meshwork, transmitting the ultrasonic energy at a frequency to a desired location for a predetermined time, causing biochemical changes to be initiated within the eye that may include triggering a presumed integrin response that initiates biochemical changes typified by but not limited to cytokines, enzymes, macrophage activity and heat shock proteins, and dislodging material built up in the trabecular meshwork.