35 results about "Chemokine receptor binding" patented technology

In this invention, the inventor discloses that naturally occurring IgM anti-lymphocyte antibodies bind to chemokine and non-chemokine receptors on lymphocytes and other cells, and downmodulate certain receptors including CD4 and CD2 on T cells and CD80 and CD86 on macrophages. The inventor also discloses that such antibodies (i) inhibit HIV-1 and other viruses from infecting cells (ii) inhibits activation and proliferation of T lymphocytes (iii) inhibits cytokine and chemokine production (iv) inhibits inflammatory processes, and (v) enhances death of malignant cells. This art or invention is novel in that the antibodies described herein are “naturally occurring” i.e. develop in absence of deliberate immunization and secondly these antibodies are distinct from disease causing autoantibodies in that these naturally occurring antibodies are polyreactive with low binding affinity.

Compounds that interact with the CXCR4 receptor are described. These compounds are useful in treating, for Example, HIV infection and inflammatory conditions such as rheumatoid arthritis, as well as asthma or cancer, and are useful in methods to elevate progenitor and stem cell counts as well as methods to elevate white blood cell counts.

Methods for increasing blood flow and / or regenerating tissue using compounds which bind to the chemokine receptor CXCR4 are disclosed. Preferred embodiments of such compounds are of the formula Z-linker-Z′) wherein Z is a cyclic polyamine containing 9-32 ring members of which 2-8 are nitrogen atoms, said nitrogen atoms separated from each other by at least 2 carbon atoms, and wherein said heterocycle may optionally contain additional heteroatoms besides nitrogen and / or may be fused to an additional ring system; or Z is of the formula (I) wherein A comprises a monocyclic or bicyclic fused ring system containing at least one N and B is H or an organic moiety of 1-20 atoms; Z′ may be embodied in a form as defined by Z above, or alternatively may be of the formula —N(R)—(CR2)n-X wherein each R is independently H or straight, branched or cyclic alkyl (1-6C), n is 1 or 2, and X is an aromatic ring, including heteroaromatic rings, or is a mercaptan; or Z is of the formula —Ar(Y)j; wherein Ar is an aromatic or heteroaromatic moiety, and each Y is independently a non-interfering substituent and j is 0-3; “linker” represents a bond, alkylene (1-6C) or may comprise aryl, fused aryl, oxygen atoms contained in an alkylene chain, or may contain keto groups or nitrogen or sulfur atoms.

The invention provides a natural killer cell for transgenic expression cell chemotactic factors, which is the chemotactic factor expressing specific functions of human body tissue organs, chemotactic factor receptor bonder or CCR10, comprising the ligand chemotactic factor of the chemotactic factor receptor CXCR4, ligand chemotactic factor of CCR6, ligand chemotactic factor of CCR7, ligand chemotactic factor of CCR10, genes and protein sequence represented by sequence 1 and homologues and modification substance. The invention also provides the application of the cell strain in preparing medicament for treating tumor, virus or bacterial infection and autoimmune diseases, and its preparing process.

Novel peptides or peptidomimetic agents or small molecules for modulating the biological effect of a chemokine. According to the present invention, the therapeutic agents preferably are endowed with the capacity to bind to certain chemokines in order to modulate the biological interaction between the target ligand, chemokine, and the respective target receptor, chemokine receptor. These peptides may be described as agonist ligands or antagonists. Next, preferably certain peptides share consensus sequences are described which characterize the families or categories of these modulator peptides.

The present invention relates to 3-cycloalkylaminopyrrolidine derivatives of the formula 1: (wherein R<1>, R<2>, R<3>, R<4>, R<5>, R<6>, R<7>, X, Y and Z are as defined herein) which are useful as modulators of chemokine receptor activity. In particular, these compounds are useful as modulators of chemokine receptors and more specifically as modulators of the CCR2 and / or CCR5 receptor. The compounds and compositions of the invention may bind to chemokine receptors, e.g., the CCR2 and / or CCR5 chemokine receptors, and are useful for treating diseases associated with chemokine, e.g., CCR2 and / or CCR5, activity, such as atherosclerosis, restenosis, lupus, organ transplant rejection and rheumatoid arthritis.

The present invention relates to chemokine receptor binding compounds, pharmaceutical compositions and their use. More specifically, the present invention relates to modulators of chemokine receptor activity, preferably modulators of CCR5. These compounds demonstrate protective effects against infection of target cells by a human immunodeficiency virus (HIV).