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Zcytor17 heterodimeric cytokine receptor polynucleotides

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Zcytor17 heterodimeric cytokine receptor polynucleotides


Novel polypeptide combinations, polynucleotides encoding the polypeptides, and related compositions and methods are disclosed for zcytor17-containing multimeric or heterodimer cytokine receptors that may be used as novel cytokine antagonists, and within methods for detecting ligands that stimulate the proliferation and/or development of hematopoietic, lymphoid and myeloid cells in vitro and in vivo. The present invention also includes methods for producing the multimeric or heterodimeric cytokine receptor, uses therefor and antibodies thereto.
Related Terms: Heterodimeric Lymphoid

Browse recent Zymogenetics, Inc. patents - ,
Inventors: Cindy A. Sprecher, Joseph L. Kuijper, Maria M. Dasovich, Francis J. Grant, Theodore E. Whitmore, Angela K. Hammond, Julia E. Novak, Jane A. Gross, Stacey R. Dillon
USPTO Applicaton #: #20120264168 - Class: 435 691 (USPTO) - 10/18/12 - Class 435 
Chemistry: Molecular Biology And Microbiology > Micro-organism, Tissue Cell Culture Or Enzyme Using Process To Synthesize A Desired Chemical Compound Or Composition >Recombinant Dna Technique Included In Method Of Making A Protein Or Polypeptide

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The Patent Description & Claims data below is from USPTO Patent Application 20120264168, Zcytor17 heterodimeric cytokine receptor polynucleotides.

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The present application is a divisional of U.S. patent application Ser. No. 13/085,645, filed Apr. 13, 2011, which is a divisional of U.S. patent application Ser. No. 12/545,770, filed Aug. 21, 2009, now abandoned, which is a continuation of U.S. patent application Ser. No. 11/552,647, filed Oct. 25, 2006, now abandoned, which is a continuation of U.S. patent application Ser. No. 11/552,653, filed Oct. 25, 2006, now abandoned, which is a divisional of U.S. patent application Ser. No. 10/351,157, filed Jan. 21, 2003, now U.S. Pat. No. 7,494,804, which claims the benefit of U.S. Patent Application Ser. No. 60/435,361, filed Dec. 19, 2002, U.S. Patent Application Ser. No. 60/389,108, filed Jun. 14, 2002, and U.S. Patent Application Ser. No. 60/350,325, filed Jan. 18, 2002, all of which are herein incorporated by reference.

BACKGROUND OF THE INVENTION

Proliferation and differentiation of cells of multicellular organisms are controlled by hormones and polypeptide growth factors. These diffusable molecules allow cells to communicate with each other and act in concert to form cells, tissues and organs, and to repair damaged tissue. Examples of hormones and growth factors include the steroid hormones (e.g., estrogen, testosterone), parathyroid hormone, follicle stimulating hormone, the interleukins, platelet derived growth factor (PDGF), epidermal growth factor (EGF), granulocyte-macrophage colony stimulating factor (GM-CSF), erythropoietin (EPO) and calcitonin.

Hormones and growth factors influence cellular metabolism by binding to receptors. Receptors may be integral membrane proteins that are linked to signaling pathways within the cell, such as second messenger systems. Other classes of receptors are soluble molecules, such as the transcription factors.

Cytokines generally stimulate proliferation or differentiation of cells of the hematopoietic lineage or participate in the immune and inflammatory response mechanisms of the body. Examples of cytokines which affect hematopoiesis are erythropoietin (EPO), which stimulates the development of red blood cells; thrombopoietin (TPO), which stimulates development of cells of the megakaryocyte lineage; and granulocyte-colony stimulating factor (G-CSF), which stimulates development of neutrophils. These cytokines are useful in restoring normal blood cell levels in patients suffering from anemia, thrombocytopenia, and neutropenia or receiving chemotherapy for cancer.

The interleukins are a family of cytokines that mediate immunological responses, including inflammation. The interleukins mediate a variety of inflammatory pathologies. Central to an immune response are T cells, which produce many cytokines and adaptive immunity to antigens. Cytokines produced by T cells have been classified as type 1 and type 2 (Kelso, A. Immun. Cell Biol. 76:300-317, 1998). Type 1 cytokines include IL-2, IFN-γ, LT-α, and are involved in inflammatory responses, viral immunity, intracellular parasite immunity and allograft rejection. Type 2 cytokines include IL-4, IL-5, IL-6, IL-10 and IL-13, and are involved in humoral responses, helminth immunity and allergic response. Shared cytokines between Type 1 and 2 include IL-3, GM-CSF and TNF-α. There is some evidence to suggest that Type 1 and Type 2 producing T cell populations preferentially migrate into different types of inflamed tissue.

Mature T cells may be activated, i.e., by an antigen or other stimulus, to produce, for example, cytokines, biochemical signaling molecules, or receptors that further influence the fate of the T cell population.

B cells can be activated via receptors on their cell surface including B cell receptor and other accessory molecules to perform accessory cell functions, such as production of cytokines.

Monocytes/macrophages and T-cells can be activated by receptors on their cell surface and play a central role in the immune response by presenting antigen to lymphocytes and also act as accessory cells to lymphocytes by secreting numerous cytokines.

Natural killer (NK) cells have a common progenitor cell with. T cells and B cells, and play a role in immune surveillance. NK cells, which comprise up to 15% of blood lymphocytes, do not express antigen receptors, and therefore do not use MEC recognition as requirement for binding to a target cell. NK cells are involved in the recognition and killing of certain tumor cells and virally infected cells. In vivo, NK cells are believed to require activation, however, in vitro, NK cells have been shown to kill some types of tumor cells without activation.

The demonstrated in vivo activities of these cytokines illustrate the enormous clinical potential of, and need for, other cytokines, cytokine agonists, and cytokine antagonists or binding partners. The present invention addresses these needs by providing a new hematopoietic multimeric cytokine receptor, as well as related compositions and methods.

The present invention provides such polypeptides for these and other uses that should be apparent to those skilled in the art from the teachings herein.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an illustration of a multiple alignment of human zcytor17lig (SEQ ID NO:2) (zcytor17lig), and mouse zcytor17lig (SEQ ID NO: 11) (mzcytor17lig), mouse IL-3 (mIL-3) (SEQ ID NO:100), and human IL-3 (hIL-3) (SEQ ID NO:102).

FIG. 2 is an illustration of a multiple alignment of human zcytor17lig (SEQ ID NO:2) (zcytor17lig), and mouse zcytor17lig (SEQ ID NO:11) (mzcytor17lig).

FIG. 3A-3E is a Hopp/Woods hydrophilicity plot of human zcytor17lig (SEQ ID NO:2).

FIG. 4A-4C is a multiple alignment of zcytor17 polynucleotide sequences SEQ ID NO:109, SEQ ID NO:113, SEQ ID NO:5, SEQ ID NO:111, and SEQ ID NO:115.

FIG. 5A-5B is an alignment of human zcytor17 (ZCYTOR) (SEQ ID NO:5) and mouse zcytor17 (M17R-O) (SEQ ID NO:117). Between the two sequences, identical residues (:), Conserved residues (.) and gaps (−) are indicated.

SUMMARY

OF THE INVENTION

The present invention provides an isolated multimeric or heterodimeric cytokine receptor comprising at least one polypeptide having at least 90 percent sequence identity with SEQ ID NO:111 or SEQ ID NO:109; and wherein the multimeric or heterodimeric cytokine receptor binds a ligand comprising SEQ ID NO:2. Optionally, the isolated multimeric or heterodimeric cytokine receptor may further comprise a cytokine-binding domain of a class I cytokine receptor. The cytokine-binding domain of the class I cytokine receptor may comprise amino acid residue 28 to amino acid residue 429 of SEQ ID NO:7, amino acid residue 28 to amino acid residue 739 of SEQ ID NO:7, amino acid residue 1 to amino acid residue 429 of SEQ ID NO:7, amino acid residue 1 to amino acid residue 739 of SEQ ID NO:7, amino acid residue 1 to amino acid residue 761 of SEQ ID NO:7, amino acid residue 28 to amino acid residue 761 of SEQ ID NO:7, amino acid residue 28 to amino acid residue 979 of SEQ ID NO:7, or amino acid residue 1 to amino acid residue 979 of SEQ ID NO:7. The isolated multimeric or heterodimeric cytokine receptor may antagonize an activity of SEQ ID NO:2. The isolated multimeric or heterodimeric cytokine receptor may inhibit proliferation of hematopoietic cells, inhibit proliferation of immune cells, inhibit proliferation of inflammatory cells, inhibit an immune response, inhibit an inflammatory response, or inhibit proliferation of tumor cells of epithelial origin. The isolated multimeric or heterodimeric cytokine receptor may be soluble. The isolated multimeric or heterodimeric cytokine receptor may further comprises an affinity tag, such as, for instance, polyhistidine, protein A, glutathione S transferase, Glu-Glu, substance P, Flag™ peptide, streptavidin binding peptide, and immunoglobulin Fc polypeptide, or cytotoxic molecule, such as, for instance, a toxin or radionuclide. The isolated multimeric or heterodimeric cytokine receptor wherein the polypeptide having at least 90 percent identity with SEQ ID NO:111 may comprise amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111, amino acid residue 20 to amino acid residue 519 of SEQ ID NO:111, amino acid residue 20 to amino acid residue 543 of SEQ ID NO:111, amino acid residue 20 to amino acid residue 732 of SEQ ID NO:111, amino acid residue 1 to amino acid residue 227, amino acid residue 1 to amino acid residue 519, amino acid residue 1 to amino acid residue 543, or amino acid residue 1 to amino acid residue 732. The isolated multimeric or heterodimeric cytokine receptor wherein the polypeptide having at least 90 percent identity with SEQ ID NO:109 may comprise amino acid residue 1 to amino acid residue 649 of SEQ ID NO:109, or amino acid residue 20 to amino acid residue 649 of SEQ ID NO:109.

The present invention also provides an isolated multimeric or heterodimeric cytokine receptor comprising at least one polypeptide comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111. The at least one polypeptide may comprise amino acid residue 1 to amino acid residue 227 of SEQ ID NO:111, amino acid residue 20 to amino acid residue 519 of SEQ ID NO:111, amino acid residue 1 to amino acid residue 519 of SEQ ID NO:111, amino acid residue 1 to amino acid residue 543 of SEQ ID NO:111, amino acid residue 20 to amino acid residue 543 of SEQ ID NO:111, amino acid residue 1 to amino acid residue 732 of SEQ ID NO:111, or amino acid residue 20 to amino acid residue 732 of SEQ ID NO:111. The isolated multimeric or heterodimeric cytokine receptor may further comprise a cytokine-binding domain of a class I cytokine receptor, for instance, amino acid residue 28 to amino acid residue 429 of SEQ ID NO:7, amino acid residue 1 to amino acid residue 429 of SEQ ID NO:7, amino acid residue 28 to amino acid residue 739 of SEQ ID NO:7, amino acid residue 1 to amino acid residue 739 of SEQ ID NO:7, amino acid residue 28 to amino acid residue 761 of SEQ ID NO:7, amino acid residue 1 to amino acid residue 761 of SEQ ID NO:7, amino acid residue 28 to amino acid residue 979 of SEQ ID NO:7, or amino acid residue 1 to amino acid residue 979 of SEQ ID NO:7. The isolated multimeric or heterodimeric cytokine receptor may antagonize an activity of a ligand comprising SEQ ID NO:2. The isolated multimeric or heterodimeric cytokine receptor may inhibit proliferation of hematopoietic cells, inhibit proliferation of immune cells, inhibit proliferation of inflammatory cells, inhibit an immune response, inhibit an inflammatory response, or inhibit proliferation of tumor cells of epithelial origin. Optionally, the isolated multimeric or heterodimeric cytokine receptor may be is soluble. The isolated multimeric or heterodimeric cytokine receptor may further comprise an affinity tag, such as, for instance, polyhistidine, protein A, glutathione S transferase, Glu-Glu, substance P, Flag™ peptide, streptavidin binding peptide, and immunoglobulin Fc polypeptide, or cytotoxic molecule, such as, for instance, a toxin or radionuclide.

The present invention also provides a soluble multimeric or heterodimeric cytokine receptor comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and amino acid residue 28 to amino acid residue 429 of SEQ ID NO:7.

The present invention also provides an isolated polynucleotide that encodes a cytokine receptor polypeptide comprising an amino acid sequence having at least 90 percent sequence identity with SEQ ID NO:111 or SEQ ID NO:109, wherein the cytokine receptor polypeptide forms a multimeric or heterodimeric cytokine receptor, and wherein the multimeric or heterodimeric cytokine receptor binds a ligand comprising SEQ ID NO:2. The multimeric or heterodimeric cytokine receptor may further comprise a cytokine-binding domain of a class I cytokine receptor, such as, for instance, amino acid residue 28 to amino acid residue 429 of SEQ ID NO:7, amino acid residue 28 to amino acid residue 739 of SEQ ID NO:7, amino acid residue 1 to amino acid residue 429 of SEQ ID NO:7, amino acid residue 1 to amino acid residue 739 of SEQ ID NO:7, amino acid residue 1 to amino acid residue 761 of SEQ ID NO:7, amino acid residue 28 to amino acid residue 761 of SEQ ID NO:7, amino acid residue 28 to amino acid residue 979 of SEQ ID NO:7, or amino acid residue 1 to amino acid residue 979 of SEQ ID NO:7. The multimeric or heterodimeric cytokine receptor may antagonize an activity of SEQ ID NO:2. The multimeric or heterodimeric cytokine receptor may inhibit proliferation of hematopoietic cells, inhibit proliferation of immune cells, inhibit proliferation of inflammatory cells, inhibit an immune response, inhibit an inflammatory response, or inhibit proliferation of tumor cells of epithelial origin. Optionally, the multimeric or heterodimeric cytokine receptor may be soluble. The multimeric or heterodimeric cytokine receptor may further comprise an affinity tag, such as, for instance, polyhistidine, protein A, glutathione S transferase, Glu-Glu, substance P, Flag™ peptide, streptavidin binding peptide, and immunoglobulin Fc polypeptide, or cytotoxic molecule, such as, for instance, a toxin or radionuclide. The encoded cytokine receptor polypeptide having at least 90 percent identity with SEQ ID NO:111 may comprise amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111, amino acid residue 20 to amino acid residue 519 of SEQ ID NO:111, amino acid residue 20 to amino acid residue 543 of SEQ ID NO:111, amino acid residue 20 to amino acid residue 732 of SEQ ID NO:111, amino acid residue 1 to amino acid residue 227 of SEQ ID NO:111, amino acid residue 1 to amino acid residue 519 of SEQ ID NO:111, amino acid residue 1 to amino acid residue 543 of SEQ ID NO:111, or amino acid residue 1 to amino acid residue 732 of SEQ ID NO:111. The encoded cytokine receptor polypeptide having at least 90 percent identity with SEQ ID NO:109 may comprise amino acid residue 1 to amino acid residue 649 of SEQ ID NO:109, or amino acid residue 20 to amino acid residue 649 of SEQ ID NO:109.

The present invention also provides an isolated polynucleotide that encodes a cytokine receptor polypeptide comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111, wherein the cytokine receptor polypeptide forms a multimeric or heterodimeric cytokine receptor. The cytokine receptor polypeptide may comprise amino acid residue 1 to amino acid residue 227 of SEQ ID NO:111, amino acid residue 20 to amino acid residue 519 of SEQ ID NO:111, amino acid residue 1 to amino acid residue 519 of SEQ ID NO:111, amino acid residue 1 to amino acid residue 543 of SEQ ID NO:111, amino acid residue 20 to amino acid residue 543 of SEQ ID NO:111, amino acid residue 1 to amino acid residue 732 of SEQ ID NO:111, or amino acid residue 20 to amino acid residue 732 of SEQ ID NO:111. The multimeric or heterodimeric cytokine receptor may further comprise a cytokine-binding domain of a class I cytokine receptor, such as, for instance, amino acid residue 28 to amino acid residue 429 of SEQ ID NO:7, amino acid residue 1 to amino acid residue 429 of SEQ ID NO:7, amino acid residue 28 to amino acid residue 739 of SEQ ID NO:7, amino acid residue 1 to amino acid residue 739 of SEQ ID NO:7, amino acid residue 28 to amino acid residue 761 of SEQ ID NO:7, amino acid residue 1 to amino acid residue 761 of SEQ ID NO:7, amino acid residue 28 to amino acid residue 979 of SEQ ID NO:7, or amino acid residue 1 to amino acid residue 979 of SEQ ID NO:7. The multimeric or heterodimeric cytokine receptor may antagonize an activity of a ligand comprising SEQ ID NO:2. The multimeric or heterodimeric cytokine receptor may inhibit proliferation of hematopoietic cells, inhibit proliferation of immune cells, inhibit proliferation of inflammatory cells, inhibit an immune response, inhibit an inflammatory response, or inhibit proliferation of tumor cells of epithelial origin. Optionally, the multimeric or heterodimeric cytokine receptor may be soluble. The multimeric or heterodimeric cytokine receptor may further comprise an affinity tag or cytotoxic molecule as described herein.

The present invention also provides an expression vector that comprises the following operably linked elements: a transcription promoter; a DNA segment encoding a cytokine receptor polypeptide having at least 90 percent sequence identity with SEQ ID NO:111; and a transcription terminator; wherein the cytokine receptor polypeptide forms a multimeric or heterodimeric cytokine receptor, and wherein the multimeric or heterodimeric cytokine receptor binds a ligand comprising SEQ ID NO:2.

Alternatively, the present invention also provides an expression vector that comprises the following operably linked elements: a) a first transcription promoter; a first DNA segment encoding a cytokine receptor polypeptide having at least 90 percent sequence identity with SEQ ID NO:111; and a first transcription terminator; and b) a second transcription promoter; a second DNA segment encoding a cytokine-binding domain of a class I cytokine receptor; and a second transcription terminator; wherein the cytokine receptor polypeptide and the class I cytokine receptor form a multimeric or heterodimeric cytokine receptor; and wherein the multimeric or heterodimeric cytokine receptor binds to a ligand comprising SEQ ID NO:2.

Alternatively, the present invention also provides an expression vector that comprises the following operably linked elements: a) a first transcription promoter; a first DNA segment encoding a polypeptide having at least 90 percent sequence identity with SEQ ID NO: 11.1; and a first transcription terminator; and b) a second transcription promoter; a second DNA segment encoding at least a portion of a class I cytokine receptor; and a second transcription terminator; wherein the polypeptide and the class I cytokine receptor form a multimeric cytokine receptor; and wherein the multimeric cytokine receptor binds to at least a portion of SEQ ID NO:2.

The expression vectors of the present invention may further include a secretory signal sequence linked to the first and second. DNA segments. The multimeric or heterodimeric cytokine receptor may be soluble, membrane-bound, or attached to a solid support. The multimeric or heterodimeric cytokine receptor may antagonize an activity of a ligand comprising SEQ ID NO:2. The multimeric or heterodimeric cytokine receptor may inhibit proliferation of hematopoietic cells, inhibit proliferation of immune cells, inhibit proliferation of inflammatory cells, inhibit an immune response, inhibit an inflammatory response, or inhibit proliferation of tumor cells of epithelial origin. Optionally, the multimeric or heterodimeric cytokine receptor may be soluble. The multimeric or heterodimeric cytokine receptor may further comprise an affinity tag or cytotoxic molecule as described herein.

The present invention also provides a cultured cell including an expression vector as described herein, wherein the cell expresses the polypeptide or polypeptides encoded by the DNA segment or segments. The cell may secrete the multimeric or heterodimeric cytokine receptor. The multimeric cytokine receptor may bind and/or antagonize an activity of SEQ ID NO:2 as further described herein.

The present invention also provides a cultured cell which includes a first expression vector comprising: a) a transcription promoter; b) a DNA segment encoding a cytokine receptor polypeptide having at least 90 percent sequence identity with SEQ ID NO:111; and c) a transcription terminator; and a second expression vector comprising: a) a transcription promoter; b) a DNA segment encoding a cytokine-binding domain of a class I cytokine receptor; and c) a transcription terminator; wherein the cytokine receptor polypeptide and the class I cytokine receptor form a multimeric or heterodimeric cytokine receptor, and wherein the multimeric or heterodimeric cytokine receptor binds to a ligand that comprises SEQ ID NO:2. The first and second expression vectors may include a secretory signal sequence operably linked to the first and second DNA segments. The cultured cell may further comprise a third expression vector which includes a) a transcription promoter; b) a DNA segment encoding a cytokine-binding domain of a second class I cytokine receptor; and c) a transcription terminator; wherein the cytokine receptor polypeptide, the first class I cytokine receptor, and the second class I cytokine receptor form a multimeric cytokine receptor. The cytokine-binding domain of a class I cytokine receptor may be of SEQ ID NO:7 and/or SEQ ID NO:9. Optionally, the multimeric or heterodimeric cytokine receptor may be soluble. The multimeric or heterodimeric cytokine receptor may further include an affinity tag as described herein. The multimeric or heterodimeric cytokine receptor may bind to at least a portion of SEQ ID NO:2 and/or antagonize an activity of SEQ ID NO:2 as described herein.

The present invention also provides a method of producing an antibody to a multimeric or heterodimeric cytokine receptor comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor. The method includes inoculating an animal with the multimeric or heterodimeric cytokine receptor, wherein the multimeric or heterodimeric cytokine receptor elicits an immune response in the animal to produce an antibody that specifically binds the multimeric or heterodimeric cytokine receptor; and isolating the antibody from the animal. The antibody may optionally be a monoclonal antibody. The antibody may optionally be a neutralizing antibody. The antibody may specifically bind to a multimeric or heterodimeric cytokine receptor as described herein.

The present invention also provides a composition which includes an effective amount of a soluble multimeric or heterodimeric cytokine receptor comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor; and a pharmaceutically acceptable vehicle. The binding domain of the class I cytokine receptor may include amino acid residue 28 to amino acid residue 429 of SEQ ID NO:7. The soluble multimeric or heterodimeric cytokine receptor may bind to a ligand comprising SEQ ID NO:2. The soluble multimeric or heterodimeric cytokine receptor may further include an affinity tag or cytotoxic molecule as described herein. The composition may antagonize an activity of a ligand comprising SEQ ID NO:2. The composition may inhibit proliferation of hematopoietic cells, inhibit proliferation of immune cells, inhibit proliferation of inflammatory cells, inhibit an immune response, inhibit an inflammatory response, or inhibit proliferation of tumor cells of epithelial origin

The present invention also provides a method of producing a multimeric or heterodimeric cytokine receptor comprising culturing a cell as described herein, and isolating the multimeric or heterodimeric cytokine receptor produced by the cell.

The present invention also provides an immune cell inhibiting composition which includes an effective amount of a soluble multimeric or heterodimeric cytokine receptor comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor; and a pharmaceutically acceptable vehicle; wherein the soluble multimeric or heterodimeric cytokine receptor inhibits the proliferation of immune cells.

The present invention also provides an immune response inhibiting composition which includes an effective amount of a soluble multimeric or heterodimeric cytokine receptor comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor; and a pharmaceutically acceptable vehicle; wherein the soluble multimeric or heterodimeric cytokine receptor inhibits an immune response.

The present invention also provides an inflammatory cell inhibiting composition which includes an effective amount of a soluble multimeric or heterodimeric cytokine receptor comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor; and a pharmaceutically acceptable vehicle; wherein the soluble multimeric or heterodimeric cytokine receptor inhibits the proliferation of inflammatory cells.

The present invention also provides an inflammatory response inhibiting composition which includes an effective amount of a soluble multimeric or heterodimeric cytokine receptor comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor; and a pharmaceutically acceptable vehicle; wherein the soluble multimeric or heterodimeric cytokine receptor inhibits an inflammatory response.

The present invention also provides a method of inhibiting an immune response in a mammal exposed to an antigen or pathogen. The method includes (a) determining directly or indirectly the level of antigen or pathogen present in the mammal; (b) administering a composition comprising a soluble multimeric or heterodimeric cytokine receptor in a pharmaceutically acceptable vehicle; (c) determining directly or indirectly the level of antigen or pathogen in the mammal; and (d) comparing the level of the antigen or pathogen in step (a) to the antigen or pathogen level in step (c), wherein a change in the level is indicative of inhibiting an immune response. The method may further comprise (e) re-administering a composition comprising a multimeric cytokine receptor in a pharmaceutically acceptable vehicle; (f) determining directly or indirectly the level of antigen or pathogen in the mammal; and (g) comparing the number of the antigen or pathogen level in step (a) to the antigen level in step (f), wherein a change in the level is indicative of inhibiting an immune response.

The present invention also provides a method for reducing hematopoietic cells and/or hematopoietic progenitors cells in a mammal. The method includes culturing bone marrow or peripheral blood cells with a composition comprising an effective amount of a soluble multimeric or heterodimeric cytokine receptor to produce a decrease in the number of lymphoid cells in the bone marrow or peripheral blood cells as compared to bone marrow or peripheral blood cells cultured in the absence of the multimeric cytokine receptor. The hematopoietic cells and hematopoietic cell progenitors may be lymphoid, which can be monocytic cells, macrophages, or T cells.

The present invention also provides a method of detecting the presence of a multimeric or heterodimeric cytokine receptor in a biological sample. The method includes contacting the biological sample with an antibody, or an antibody fragment, as described herein, wherein the contacting is performed under conditions that allow the binding of the antibody or antibody fragment to the biological sample; and detecting any of the bound antibody or bound antibody fragment.

The present invention also provides a method of a method of killing cancer cells. The method includes obtaining ex vivo a tissue or biological sample containing cancer cells from a patient, or identifying cancer cells in vivo; producing a multimeric or heterodimeric cytokine receptor by a method as described herein; formulating the multimeric or heterodimeric cytokine receptor in a pharmaceutically acceptable vehicle; and administering to the patient or exposing the cancer cells to the multimeric or heterodimeric cytokine receptor formulation; wherein the multimeric or heterodimeric cytokine receptor kills the cells. The multimeric or heterodimeric cytokine receptor may be further conjugated to a toxin.

The present invention also provides an antibody that specifically binds to a multimeric or heterodimeric cytokine receptor as described herein. The antibody may be a polyclonal antibody, a murine monoclonal antibody, a humanized antibody derived from a murine monoclonal antibody, an antibody fragment, a neutralizing antibody, or a human monoclonal antibody. The antibody or antibody fragment may specifically bind to a multimeric or heterodimeric cytokine receptor of the present invention which may comprise a cytokine receptor polypeptide comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor. The antibody may further include a radionuclide, enzyme, substrate, cofactor, fluorescent marker, chemiluminescent marker, peptide tag, magnetic particle, drug, or toxin.

The present invention also provides a method for inhibiting zcytor17lig-induced proliferation or differentiation of hematopoietic cells and hematopoietic progenitor cells. The method includes culturing bone marrow or peripheral blood cells with a composition comprising an amount of a soluble multimeric or heterodimeric cytokine receptor comprising a cytokine receptor polypeptide comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor sufficient to reduce proliferation or differentiation of the hematopoietic cells in the bone marrow or peripheral blood cells as compared to bone marrow or peripheral blood cells cultured in the absence of the soluble multimeric or heterodimeric cytokine receptor. The hematopoietic cells and hematopoietic progenitor cells may be lymphoid cells, such as macrophages or T cells.

The present invention also provides a method of reducing zcytor17lig-induced induced inflammation. The method includes administering to a mammal with inflammation an amount of a composition comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor sufficient to reduce inflammation.

The present invention also provides a method of suppressing an inflammatory response in a mammal with inflammation. The method includes (1) determining a level of an inflammatory molecule; (2) administering a composition comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor in a pharmaceutically acceptable vehicle; (3) determining a post administration level of the inflammatory molecule; (4) comparing the level of the inflammatory molecule in step (1) to the level of the inflammatory molecule in step (3), wherein a lack of increase or a decrease the inflammatory molecule level is indicative of suppressing an inflammatory response.

The present invention also provides a method for inhibiting zcytor17lig-induced proliferation or differentiation of hematopoietic cells and hematopoietic progenitor cells. The method includes culturing bone marrow or peripheral blood cells with a composition comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and, a cytokine-binding domain of a class I cytokine receptor in a pharmaceutically acceptable vehicle sufficient to reduce proliferation or differentiation of the hematopoietic cells in the bone marrow or peripheral blood cells as compared to bone marrow or peripheral blood cells cultured in the absence of soluble multimeric or heterodimeric cytokine receptor. The hematopoietic cells and hematopoietic progenitor cells may be lymphoid cells, such as macrophages or T cells.

The present invention also provides a method of reducing zcytor17lig-induced induced inflammation. The method includes administering to a mammal with inflammation an amount of a composition comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor in a pharmaceutically acceptable vehicle sufficient to reduce inflammation.

The present invention also provides a method of suppressing an inflammatory response in a mammal with inflammation. The method includes (1) determining a level of an inflammatory molecule; (2) administering a composition comprising a multimeric or heterodimeric cytokine receptor which comprises amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 in a pharmaceutically acceptable vehicle; (3) determining a post administration level of the inflammatory molecule; (4) comparing the level of the inflammatory molecule in step (1) to the level of the inflammatory molecule in step (3), wherein a lack of increase or a decrease in the inflammatory molecule level is indicative of suppressing an inflammatory response.

The present invention also provides a method of treating a mammal afflicted with an inflammatory disease in which zcytor17lig plays a role. The method includes administering an antagonist of zcytor17lig to the mammal such that the inflammation is reduced, wherein the antagonist is a soluble multimeric or heterodimeric cytokine receptor comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor in a pharmaceutically acceptable vehicle. The inflammatory disease may be a chronic inflammatory disease, such as, for instance, inflammatory bowel disease, ulcerative colitis, Crohn\'s disease, atopic dermatitis, eczema, or psoriasis. The inflammatory disease may be an acute inflammatory disease, such as, for instance, endotoxemia, septicemia, toxic shock syndrome, or infectious disease. Optionally, the soluble multimeric or heterodimeric cytokine receptor may further comprise a radionuclide, enzyme, substrate, cofactor, fluorescent marker, chemiluminescent marker, peptide tag, magnetic particle, drug, or toxin.

The present invention also provides a method for detecting inflammation in a patient. The method includes obtaining a tissue or biological sample from a patient; incubating the tissue or biological sample with a soluble multimeric or heterodimeric cytokine receptor comprising amino acid residue 20 to amino acid residue 227 of SEQ ID NO:111 and a cytokine-binding domain of a class I cytokine receptor under conditions wherein the soluble multimeric or heterodimeric cytokine receptor binds to its complementary polypeptide in the tissue or biological sample; visualizing the soluble multimeric or heterodimeric cytokine receptor bound in the tissue or biological sample; and comparing levels of soluble multimeric or heterodimeric cytokine receptor bound in the tissue or biological sample from the patient to a normal control tissue or biological sample, wherein an increase in the level of soluble multimeric or heterodimeric cytokine receptor bound to the patient tissue or biological sample relative to the normal control tissue or biological sample is indicative of inflammation in the patient.



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stats Patent Info
Application #
US 20120264168 A1
Publish Date
10/18/2012
Document #
File Date
08/22/2014
USPTO Class
Other USPTO Classes
International Class
/
Drawings
0


Heterodimeric
Lymphoid


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