89 results about "Organ tissue transplant" patented technology

The present invention encompasses compounds of Formula 1: as well as the pharmaceutically acceptable salts and hydrates thereof. The compounds are useful for treating immune mediated diseases and conditions, such as bone marrow, organ and tissue transplant rejection. Pharmaceutical compositions and methods of use are included.

The present invention encompasses compounds of Formula (I) as well as the pharmaceutically acceptable salts and hydrates thereof. The compounds are useful for treating immune mediated diseases and conditions, such as bone marrow, organ and tissue transplant rejection. Pharmaceutical compositions and methods of use are included.

The present invention encompasses compounds of Formula I: (I) as well as the pharmaceutically acceptable salts thereof. The compounds are useful for treating immune mediated diseases and conditions, such as bone marrow, organ and tissue transplant rejection. Pharmaceutical compositions and methods of use are included.

The present invention comprises a method of protecting organs or tissue susceptible to reperfusion-induced dysfunction after ischemia. The method comprises parenterally administering to a patient a therapeutical composition containing natural alpha-1 acid glycoprotein, natural alpha-1 antitrypsin or a mixture thereof. Alternatively, organ or tissue transplants can be contacted with natural alpha-1 acid glycoprotein, natural alpha-antitrypsin or mixtures by perfusing or flushing them with a solution containing natural alpha-1 acid glycoprotein, natural alpha-1 antitrypsin or mixtures thereof in a concentration of 0.1 to 5 g / l.

The present invention encompasses compounds of Formula (I): as well as the pharmaceutically acceptable salts and hydrates thereof. The compounds are useful for treating immune mediated diseases and conditions, such as bone marrow, organ and tissue transplant rejection. Pharmaceutical compositions and methods of use are included.

PCT No. PCT / US94 / 05844 Sec. 371 Date Jun. 6, 1995 Sec. 102(e) Date Jun. 6, 1995 PCT Filed May 24, 1994 PCT Pub. No. WO94 / 27622 PCT Pub. Date Dec. 8, 1993This invention provides a method for developing immune tolerance in xenogeneic organ graft recipients, in which lympho-hematopoietic cells from an intended organ graft recipient are differentiated within a xenogeneic surrogate, such as a fetal animal. After birth of the surrogate, the matured lympho-hematopoietic cells containing antigen specific regulatory cells, including suppressor cells, veto cells, select B cells, anti-idiotype antibodies, and other related factors responsible for antigen specific tolerance in a surrogate animal are reintroduced into the intended organ graft recipient, in conjunction with an organ transplant or a tissue transplant from the xenograft surrogate. The invention also provides an organ graft repopulated with cells from the intended organ graft recipient produced in a surrogate animal.

The invention provides novel methods for treating disease based upon the medicinal use of lipids and phospholipids covalently bound to physiologically acceptable monomers or polymers. Phosphatidylethanolamine moieties conjugated to physiologically acceptable monomers and polymers (PE conjugates) manifest an unexpectedly wide range of pharmacological effects, including stabilizing cell membranes; limiting oxidative damage to cell and blood components; limiting cell proliferation, cell extravasation and (tumor) cell migratory behavior; suppressing immune responses; and attenuating physiological reactions to stress, as expressed in elevated chemokine levels. The surprisingly manifold pharmacological properties of the PL-conjugates allow for the invention, disclosed herein, of novel methods for the treatment of a diverse range of disease states, including obstructive respiratory disease, including asthma; colitis and Crohn's disease; central nervous system insult, including blood brain barrier compromise, ischemic stroke, and multiple sclerosis; contact dermatitis; psoriasis; cardiovascular disease, including ischemic conditions and prophylaxis for invasive vascular procedures; cellular proliferative disorders, including anti-tumor vasculogenesis, invasiveness, and metastases; anti-oxidant therapy; hemolytic syndromes; sepsis; acute respiratory distress syndrome; tissue transplant rejection syndromes; autoimmune disease; viral infection; and hypersensitivity conjunctivitis. The therapeutic methods of the invention include administration of phosphatidylethanolamine bound to carboxymethylcellulose, heparin, hyaluronic acid, polyethylene glycol, and Polygeline (haemaccel). Disclosed herein are also new compounds comprised of phospholipid moieties bound to low molecular weight monomers and dimers, including mono- and disaccharides, carboxylated disaccharides, mono- and dicarboxylic acids, salicylates, bile acids, and fatty acids.

Devices and methods for transplanting tissue for the purpose of regeneration, for treating a patient having injured myocardial tissue, and / or for improving cardiac function through cell regrowth. More specifically, the devices and methods obviate the need for cellular alteration. The devices comprise a hollow tube with a sharp distal end, a stylet that is disposed and movable within the hollow tube, and a stopping device that constrains movement of the stylet. The methods comprise removing intact tissue from a first region of a mammalian organ and implanting the tissue in a second region of the same organ.

The present invention encompasses compounds of Formula I: as well as the pharmaceutically acceptable salts and hydrates thereof. The compounds are useful for treating immune mediated diseases and conditions, such as bone marrow, organ and tissue transplant rejection. Pharmaceutical compositions and methods of use are included.

The present invention relates to animal model systems comprising a chimera between an avian embryo and a mammalian organism. Specifically, chimeric model systems comprising normal, diseased or genetically transformed mammalian cells and tissues transplanted into avian embryos, and uses thereof for in vivo testing of drugs and therapeutic modalities are disclosed.

The present invention relates to a method of preparing a tissue graft material. The invention also relates to a multipurpose tissue graft material and to methods of using same as a replacement for vascular and non-vascular tissue.

A stent tissue graft prosthesis (20) for repairing, excluding and / or reinforcing a vessel, duct and the like in a patient. The prosthesis includes an inner expandable stent (21) of which a tissue graft (24) and preferably a multilayered tissue construct (33) is disposed thereon for application to the host tissue of a vessel, duct and the like. The tissue construct includes an extracellular matrix material (36) such as small intestine submucosa (37) for remodeling the host tissue into the prosthesis. The prosthesis further includes an outer tubular member (25) such as an outer expandable stent (44) for retaining the tissue graft on the inner stent. The ends of the inner and outer stents are coincident with or extend beyond the ends of the tissue graft to prevent eversion or fold back of the tissue graft during withdrawal of a delivery catheter in a placement procedure.

The present invention encompasses compounds of Formula I: (I) as well as the pharmaceutically acceptable salts thereof. The compounds are useful for treating immune mediated diseases and conditions, such as bone marrow, organ and tissue transplant rejection. Pharmaceutical compositions and methods of use are included.

The present invention encompasses compounds of Formula I: as well as the pharmaceutically acceptable salts and hydrates thereof. The compounds are useful for treating immune mediated diseases and conditions, such as bone marrow, organ and tissue transplant rejection. Pharmaceutical compositions and methods of use are included.

A method of treating a disorder associated with pathological organ or tissue physiology or morphology is disclosed. The method is effected by transplanting into a subject in need thereof a therapeutically effective mammalian organ or tissue graft selected not substantially expressing or presenting at least one molecule capable of stimulating or enhancing an immune response in the subject.

The present invention comprises a method of protecting organs or tissue susceptible to reperfusion-induced dysfunction after ischemia. The method comprises parenterally administering to a patient a therapeutical composition containing natural alpha-1 acid glycoprotein, natural alpha-1 antitrypsin or a mixture thereof. Alternatively, organ or tissue transplants can be contacted with natural alpha-1 acid glycoprotein, natural alpha-1 antitrypsin or mixtures by perfusing or flushing them with a solution containing natural alpha-1 acid glycoprotein, natural alpha-1 antitrypsin or mixtures thereof in a concentration of 0.1 to 5 g / l.

The present invention encompasses compounds of Formula (I): as well as the pharmaceutically acceptable salts thereof. The compounds are useful for treating immune mediated diseases and conditions, such as bone marrow, organ and tissue transplant rejection. Pharmaceutical compositions and methods of use are included.

The present invention encompasses compounds or Formula (I): as well as the pharmaceutically acceptable salts and hydrates thereof. The compounds are useful for treating immune mediated diseases and conditions, such as bone marrow, organ and tissue transplant rejection. Pharmaceutical compositions and methods of use are included.

Compositions and methods for inhibiting CD40-directed activities that are mediated via the binding of C4BP to CD40 are provided. The compositions of the invention include anti-CD40 antibodies, or antigen-binding fragments thereof, that have the following characteristics: 1) are free of significant CD40 agonist activity when bound to CD40 antigen; and 2) are capable of specifically binding to CD40 antigen expressed on the surface of cells, wherein this binding to CD40 antigen blocks C4BP-mediated CD40 signaling, thereby inhibiting one or more CD40-directed activities. These antagonist anti-CD40 antibodies can effectively be used to treat CD40-associated diseases that are mediated by C4BP stimulation of CD40 signaling, including cancers, such as B cell-related cancers and solid tumors, and diseases or disorders that have an autoimmune and / or inflammatory component, including organ and tissue transplant rejection.

A composite comprising a stem cell; a biodegradable layer, which can provide an environment for the stem cell to grow and to differentiate, and; a N-isopropylacrylamide (NIPAAm), which can polymerize with the biodegradable layer and possess the temperature-responsive character for easy stripping. This invention also provides a method of treating a subject with a skin defect by covering the composite of the present invention on the skin defect of the subject in need of such treatment. Furthermore, using this composite with different growth factors, stem cells can be induced to differentiate into skin-related, neuronal cells, neuron, and insulin-positive cells in biodegradable scaffolds as well as transplanted graft. Finally, this invention also provides a quick and convenient method of monitoring cell growth or tissue engineering in an animal.

The present invention is directed to novel methods of producing ex vivo natural killer T (NKT) cells, and therapeutic uses thereof for treatment of certain conditions including cancer, autoimmunity, inflammatory disorders, allergic disorders, tissue transplant-related disorders, and infections.

The subject invention pertains to materials and methods for processing tissue to produce a natural, acellular replacement tissue that is immunocompatible with a recipient. According to the subject invention, harvested tissue is subjected to wash solutions wherein only amphoteric detergent(s) are used (e.g., anionic detergents are excluded). Following extraction by amphoteric detergent(s), the tissue is washed with a buffer system to facilitate the clearance of cellular components and detergent. In one embodiment, the subject invention pertains to a replacement tissue that is a nerve graft that supports axonal regeneration, guides axons toward the distal nerve end and / or is immunologically tolerated. Preferably, the nerve graft retains essential extracellular matrix scaffolding as well as biological components that promote nerve regeneration through the nerve graft.

A device for transplanting a graft such as a layer or layers of cultivated, autologous, allogenic or xenogenic cells to cover an accidental or surgical wound. The graft is cultivated and carried on a bed of collagen or other dissolvable or releasable material mounted on a protective substrate molded to conform to the profile of the wounded area and provided with a lateral attachment zone. The device facilitates the graft cultured in vitro to the recipient surface.

A method of treating a subject in need of a cell or tissue transplant is disclosed. The method comprising (a) transplanting a non-syngeneic cell or tissue transplant into the subject, wherein the transplant comprises bone marrow or lymphoid cells; and (b) administering to the subject a therapeutically effective amount of an immunosuppressive regimen comprising a Sphingosine 1-Phosphate Receptor Agonist, a B7 molecule inhibitor and a CD2 / CD58 pathway inhibitor, thereby treating the subject.

A method for inhibiting rejection of tissues transplanted into a mammalian host is disclosed. Treatment of the tissues with an enzyme or combination of enzyme, particularly papain, to eliminate cell surface structures necessary for recognition by the host's immune system, particularly MHC Class I molecules, avoids or reduces the attack of the host's immune system on the transplanted tissues. Tissues that are enzymatically shaved of MHC Class I antigens and / or other critical adhesion molecules can be rendered at least temporarily resistant or immune to attack by cytolytic T lymphocytes, helper T lymphocytes, antibodies, or other effector cells of a host's immune system, thereby enhancing the survivability of the tissues in the host after 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 chimeric protein compound for durable and efficient suppression to different chemotactic factor receptors, its nucleic acid sequence, and the process for preparing and testing its products are disclosed. It can be used to prevent and cure HIV infection, tumor transfer, tissue transplant rejection and self immunopathy. Its advantages are high durability, broad spectrum, and high selectivity.