38 results about "Alloimmunity" patented technology

Antibodies to heavy chain of human FcRn are provided which function as non-competitive inhibitors of IgG binding to FcRn. The antibodies may be polyclonal, monoclonal, chimeric or humanized, or antigen binding fragments thereof. These antibodies are useful for reducing the concentration of pathogenic IgGs in individuals and therefore used as a therapeutic tool in autoimmune and alloimmune conditions.

Novel chimeric proteins are disclosed. The proteins comprise at least two portions. The first portion binds to a first cell and decreases the cell's ability to send a trans signal to a second cell; the second portion sends its own trans signal to the second cell. Methods for making and using these proteins in the treatment of cancer, viral infections, autoimmune and alloimmune diseases are also disclosed, as are pharmaceutical formulations comprising the novel chimeric proteins and genes. Either the proteins themselves or a genetic sequence encoding the protein can be administered. Other methods are also disclosed in which two molecular components result in decrement of a first trans signal from a first cell and the conferring of a second trans signal to a second cell.

RBC and platelet (Plt) alloimmunization requires antigen-matched blood to avoid adverse transfusion reactions. Some blood collection facilities use unregulated Abs to reduce the cost of mass screening, and later confirm the phenotype with government approved reagents. Alternatively, RBC and Plt antigens can be screened by virtue of their associated single nucleotide polymorphisms (SNPs). We developed a multiplex PCR-oligonucleotide extension assay using the GenomeLab SNPStream platform to genotype blood for a plurality of blood group antigen-associated SNPs, including but not limited to: RhD (2), RhC / c, RhE / e, S / s, K / k, Kpa / b, Fya / b, FYO, Jka / b, Dia / b, and HPA-1a / b.

Fusion proteins which act on the OX40 / TRAIL signaling axes are provided. The proteins are useful in the treatment or amelioration of autoimmune diseases, particularly multiple sclerosis, and alloimmune diseases, as well as cancer.

Novel chimeric proteins are disclosed. The proteins comprise at least two portions. The first portion binds to a first cell and decreases the cell's ability to send a trans signal to a second cell; the second portion sends its own trans signal to the second cell. Methods for making and using these proteins in the treatment of cancer, viral infections, autoimmune and alloimmune diseases are also disclosed, as are pharmaceutical formulations comprising the novel chimeric proteins and genes. Either the proteins themselves or a genetic sequence encoding the protein can be administered. Other methods are also disclosed in which two molecular components result in decrement of a first trans signal from a first cell and the conferring of a second trans signal to a second cell.

Antibodies to heavy chain of human FcRn are provided which function as non-competitive inhibitors of IgG binding to FcRn. The antibodies may be polyclonal, monoclonal, chimeric or humanized, or antigen binding fragments thereof. These antibodies are useful for reducing the concentration of pathogenic IgGs in individuals and therefore used as a therapeutic tool in autoimmune and alloimmune conditions.

Novel chimeric proteins are disclosed. The proteins comprise at least two portions. The first portion binds to a first cell and decreases the cell's ability to send a trans signal to a second cell; the second portion sends its own trans signal to the second cell. Methods for making and using these proteins in the treatment of cancer, viral infections, autoimmune and alloimmune diseases are also disclosed, as are pharmaceutical formulations comprising the novel chimeric proteins and genes. Either the proteins themselves or a genetic sequence encoding the protein can be administered. Other methods are also disclosed in which two molecular components result in decrement of a first trans signal from a first cell and the conferring of a second trans signal to a second cell.

The present invention relates to novel myeloid suppressor cells (MSCs) and to methods of isolating these MSCs are also included. The MSCs of the present invention can be used to treat or prevent autoimmune diseases or alloimmune responses. The MSCs of the present invention may also be used to reduce a T cell response, induce T regulatory cells, and produce T cell tolerance.

The present invention relates (a) to new compounds represented by Formula I: wherein M represents a macrolide subunit (macrolide moiety) derived from macrolide possessing the property of accumulation in inflammatory cells, S represents a steroid subunit (steroid moiety) derived from steroid drug with anti-inflammatory activity and L represents a linker molecule linking M and S, (b) to their pharmacologically acceptable salts, prodrugs and solvates, (c) to processes and intermediates for their preparation, and (d) to their use in the treatment of inflammatory diseases and conditions in humans and animals. Such compounds inhibit many cytokines and immune mediators involved in immune responses which cause inflammation, allergy, or alloimmunity, including without limitation IL-1, 2, 4, 5, 6, 10, 12, GMCSF, ICAM, and TNF-α. Importantly, anti-inflammatory steroids exert a direct anti-inflammatory effect through binding to the glucocorticosteroid receptor.

Antibodies to FcRn are provided which are non-competitive inhibitors of IgG binding to FcRn. The antibodies may be polyclonal or monoclonal or antigen binding fragment thereof. These antibodies are useful for reducing the concentration of pathogenic IgGs in individuals and therefore used as a therapeutic tool in autoimmune and alloimmune conditions.

A method for characterizing the risk a subject will develop an autoimmune and / or alloimmune disease following tissue transplant includes obtaining a biological sample from the subject, wherein the subject has received the tissue transplant determining in the biological sample a level of at least one protein selected from Tables 1-4, comparing the measured level of the at least one protein to a control value, and characterizing a subject as at greater risk of developing an autoimmune disease and / or alloimmune disease if the level of at least one protein determined is increased or decreased compared to the control value.

Fusion proteins which act on the TWEAK and TRAIL signaling axes are provided. The proteins are useful in the treatment or amelioration of autoimmune diseases, particularly multiple sclerosis, as well as other diseases such as alloimmune diseases and cancer.

Disclosed are methods for detecting antibody in a sample, where the antibody targets an antigen expressed by red blood cells or red blood cell ghosts. Rather than detecting the binding events between a particular antigen antibody pair (as in traditional agglutination based assays) the methods herein allow for multiplexed detection of clinically important allo-immune antibodies to blood group antigens. Specifically the method involves generating fluorescently encoded red blood cells or red blood cell ghosts with known antigen presentation and using them to detect the presence of antibody in serum / plasma with a fluorescent sandwich type immunoassay. The assay results can be read using flow cytometric or fluorescent microscope based imaging techniques.

The present invention provides materials and methods for antagonizing the function of vascular endothelial growth factor receptors, platelet derived growth factor receptors and other receptors, to prevent, inhibit, or ameliorate allograft rejection or arteriosclerosis in organisms that receive an organ transplant.

A method for characterizing the risk a subject will develop an autoimmune and / or alloimmune disease following tissue transplant includes obtaining a biological sample from the subject, wherein the subject has received the tissue transplant determining in the biological sample a level of at least one protein selected from Tables 1-4, comparing the measured level of the at least one protein to a control value, and characterizing a subject as at greater risk of developing an autoimmune disease and / or alloimmune disease if the level of at least one protein determined is increased or decreased compared to the control value.

A method and composition for inhibiting phagocytosis of blood cells. The method involves providing a nitrophenyl compound or thimerosal with administration of the compound to a host having an auto or alloimmune disease to inhibit phagocytosis of blood cells.

Embodiments of the disclosure concern engineered auto / allo-immune defense receptor (ADR)-expressing T cells that selectively target activated T cells, including pathogenic T cells, to incapacitate them. The chimeric receptors comprise moieties for targeting 4-1BB, 0X40, and CD40L, for example, whose expression is indicative of activated T cells. In particular embodiments, there are methods of preventing or treating conditions associated with activated T cells using adoptive T-cell transfer of cells encoding the ADRs.

The present invention provides materials and methods for antagonizing the function of vascular endothelial growth factor receptors, platelet derived growth factor receptors and other receptors, to prevent, inhibit, or ameliorate allograft rejection or arteriosclerosis in organisms that receive an organ transplant.

A method of improving the lifespan of transfused platelets is described. The method may be useful for patients with alloimmunozation who are refractory to transfused platelets. A method of treating delayed hemolytic transfusion reaction is also described. Also described are PIC1 peptide variants with improved solubility and activity.

Described herein are immunoresponsive cells which are useful for their preventive and therapeutic potential against autoimmune diseases and rejections of solid organ transplants.

Embodiments of the disclosure concern engineered auto / allo-immune defense receptor (ADR)-expressing T cells that selectively target activated T cells, including pathogenic T cells, to incapacitate them. The chimeric receptors comprise moieties for targeting 4-1BB, OX40, and CD40L, for example, whose expression is indicative of activated T cells. In particular embodiments, there are methods of preventing or treating conditions associated with activated T cells using adoptive T-cell transfer of cells encoding the ADRs.

Methods and compositions for the prevention or reduction of platelet transfusion associated complications are provided. The subject methods include modifying donor whole blood or platelets prior to transfusion to prevent or reduce alloimmune platelet refractoriness.

Disclosed herein are methods of preventing or treating alloimmunization in a subject in need thereof, the method comprising administering an anti-B-cell antibody to the subject prior to the subject receiving a blood transfusion.

The present application relates to the field of medical detection, and in particular, the present application relates to a kind of integrated genotyping method of multiple blood cell antigens related to selective blood transfusion and application thereof.The genotyping method described in the present application is an integrated typing method based on DNA sequence related to multiple red blood cell, platelet and white blood cell antigen coding genes related to blood transfusion, which can reduce the incidence of xenoantigen sensitization caused by alloimmunization, promote precision blood transfusion, and cover blood group genes including ABO, RhD, RhCE, HPA (ITGB3, GP1BA, GP1BB, ITGA2B, ITGA2, CD109, GP9), HLA-A, -B, -C, -DRB1, -DQB1, ABO, FUT1, FUT2, etc.The covered alleles can reach tens of thousands.Moreover, after the platform built in the present application, second-generation sequencing library construction and third-generation sequencing library construction can be carried out, which provides an excellent re-creation and reproduction platform for future haplotype confirmation of multiple site variations in blood group genes, and has important significance for future precision blood transfusion.

The described invention relates to methods for preventing or treating graft-versus-host disease while preserving a graft-versus-tumor effect, increasing survival of, preserving alloreactivity, or a combination thereof in a patient with a tumor receiving a transplant. The described methods comprise administering to the patient a therapeutic amount of a pharmaceutical composition comprising a Rho kinase inhibitor compound, e.g., telmisartan or related angiotensin receptor blockers, and a pharmaceutically acceptable excipient. The therapeutic amount may be effective to attenuate graft-versus-host disease and to preserve the graft-versus-tumor effect of the transplant.

A method for characterizing the risk a subject will develop an autoimmune and / or alloimmune disease following tissue transplant includes obtaining a biological sample from the subject, wherein the subject has received the tissue transplant determining in the biological sample a level of at least one protein selected from Tables 1-4, comparing the measured level of the at least one protein to a control value, and characterizing a subject as at greater risk of developing an autoimmune disease and / or alloimmune disease if the level of at least one protein determined is increased or decreased compared to the control value.

Provided herein are compositions and methods for treating an autoimmune disorder, an isoimmune disorder, an inflammatory disorder, an aging-related disorder, and a cancer-related disorder.