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Transplant rejection

Index Transplant rejection

Transplant rejection occurs when transplanted tissue is rejected by the recipient's immune system, which destroys the transplanted tissue. [1]

116 relations: ABO blood group system, Adaptive immune system, Agglutination (biology), Allele, Anti-lymphocyte globulin, Anti-thymocyte globulin, Antibody, Antigen, Antigen-presenting cell, Apoptosis, Azathioprine, B cell, Basiliximab, Biopsy, Blood vessel, Bronchiolitis, Bronchiolitis obliterans, Cadaver, Calcineurin, CD4, CD8, Cell-mediated immunity, Chemotaxis, Ciclosporin, Cloning, Complement system, Corticosteroid, Cough, Cytokine, Cytokine release syndrome, Cytostasis, Cytotoxic T cell, Daclizumab, Damage-associated molecular pattern, Dendritic cell, Endothelium, Eosinophil, Epithelium, Epitope, Everolimus, Fc receptor, Fibroblast, Fibrosis, Fragment antigen-binding, Fragment crystallizable region, Galactose-alpha-1,3-galactose, Gastroesophageal reflux disease, Gene expression profiling, Gene therapy, Glomerulus, ..., Graft-versus-host disease, Graft-versus-tumor effect, H&E stain, Heart transplantation, Hematopoietic stem cell, Hematopoietic stem cell transplantation, Histology, Human blood group systems, Human leukocyte antigen, Humoral immunity, Hydrocortisone, Immune system, Immunosuppression, Immunosuppressive drug, Inflammation, Innate immune system, Ischemia, Joseph Murray, Kidney, Lung transplantation, Lymph node, Lymphatic system, Lymphocyte, Macrophage, Magnetic resonance imaging, Major histocompatibility complex, MHC class II, Micrograph, Molecular diffusion, Monoclonal antibody, MTOR, Muromonab-CD3, Mycophenolic acid, Myofibroblast, Neutrophil, Opsonin, Organ transplantation, Paratope, Pattern recognition receptor, Peptide, Periodic acid–Schiff stain, Peripheral blood cell, Phagocyte, Plasma cell, Post-transplant lymphoproliferative disorder, Prednisolone, Programmed cell death, Pulmonary insufficiency, Radioactive tracer, Red blood cell, Rituximab, Shortness of breath, Sirolimus, Stem cell, Syndrome, Systemic inflammatory response syndrome, T cell, T helper cell, T-cell receptor, Tacrolimus, Toll-like receptor, Transplant glomerulopathy, Twin, United Kingdom, White blood cell, Xenotransplantation. Expand index (66 more) »

ABO blood group system

The ABO blood group system is used to denote the presence of one, both, or neither of the A and B antigens on erythrocytes.

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Adaptive immune system

The adaptive immune system, also known as the acquired immune system or, more rarely, as the specific immune system, is a subsystem of the overall immune system that is composed of highly specialized, systemic cells and processes that eliminate pathogens or prevent their growth.

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Agglutination (biology)

Agglutination is the clumping of particles.

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Allele

An allele is a variant form of a given gene.

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Anti-lymphocyte globulin

Anti-lymphocyte globulin (ALG) is an infusion of animal- antibodies against human T cells which is used in the treatment of acute rejection in organ transplantation.

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Anti-thymocyte globulin

Anti-thymocyte globulin (ATG) is an infusion of horse or rabbit-derived antibodies against human T cells, which is used in the prevention and treatment of acute rejection in organ transplantation and therapy of aplastic anemia.

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Antibody

An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.

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Antigen

In immunology, an antigen is a molecule capable of inducing an immune response (to produce an antibody) in the host organism.

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Antigen-presenting cell

An antigen-presenting cell (APC) or accessory cell is a cell that displays antigen complexed with major histocompatibility complexes (MHCs) on their surfaces; this process is known as antigen presentation.

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Apoptosis

Apoptosis (from Ancient Greek ἀπόπτωσις "falling off") is a process of programmed cell death that occurs in multicellular organisms.

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Azathioprine

Azathioprine (AZA), sold under the brand name Imuran among others, is an immunosuppressive medication.

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B cell

B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte subtype.

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Basiliximab

Basiliximab (trade name Simulect) is a chimeric mouse-human monoclonal antibody to the α chain (CD25) of the IL-2 receptor of T cells.

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Biopsy

A biopsy is a medical test commonly performed by a surgeon, interventional radiologist, or an interventional cardiologist involving extraction of sample cells or tissues for examination to determine the presence or extent of a disease.

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Blood vessel

The blood vessels are the part of the circulatory system, and microcirculation, that transports blood throughout the human body.

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Bronchiolitis

Bronchiolitis is blockage of the small airway in the lungs due to a viral infection.

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Bronchiolitis obliterans

Bronchiolitis obliterans (BO), informally known as popcorn lung, is a disease that results in obstruction of the smallest airways of the lungs (bronchioles) due to inflammation.

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Cadaver

A cadaver, also referred to as a corpse (singular) in medical, literary, and legal usage, or when intended for dissection, is a deceased body.

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Calcineurin

Calcineurin (CaN) is a calcium and calmodulin dependent serine/threonine protein phosphatase (also known as protein phosphatase 3, and calcium-dependent serine-threonine phosphatase).

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CD4

In molecular biology, CD4 (cluster of differentiation 4) is a glycoprotein found on the surface of immune cells such as T helper cells, monocytes, macrophages, and dendritic cells.

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CD8

CD8 (cluster of differentiation 8) is a transmembrane glycoprotein that serves as a co-receptor for the T cell receptor (TCR).

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Cell-mediated immunity

Cell-mediated immunity is an immune response that does not involve antibodies, but rather involves the activation of phagocytes, antigen-specific cytotoxic T-lymphocytes, and the release of various cytokines in response to an antigen.

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Chemotaxis

Chemotaxis (from chemo- + taxis) is the movement of an organism in response to a chemical stimulus.

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Ciclosporin

Ciclosporin, also spelled cyclosporine and cyclosporin, is an immunosuppressant medication and natural product.

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Cloning

Cloning is the process of producing genetically identical individuals of an organism either naturally or artificially.

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Complement system

The complement system is a part of the immune system that enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promotes inflammation, and attacks the pathogen's cell membrane.

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Corticosteroid

Corticosteroids are a class of steroid hormones that are produced in the adrenal cortex of vertebrates, as well as the synthetic analogues of these hormones.

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Cough

A cough is a sudden and often repetitively occurring, protective reflex, which helps to clear the large breathing passages from fluids, irritants, foreign particles and microbes.

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Cytokine

Cytokines are a broad and loose category of small proteins (~5–20 kDa) that are important in cell signaling.

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Cytokine release syndrome

Cytokine release syndrome is a form of systemic inflammatory response syndrome that arises as a complication of some diseases or infections, and is also an adverse effect of some monoclonal antibody drugs, as well as adoptive T-cell therapies.

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Cytostasis

Cytostasis (cyto – cell; stasis – stoppage) is the inhibition of cell growth and multiplication.

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Cytotoxic T cell

A cytotoxic T cell (also known as TC, cytotoxic T lymphocyte, CTL, T-killer cell, cytolytic T cell, CD8+ T-cell or killer T cell) is a T lymphocyte (a type of white blood cell) that kills cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.

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Daclizumab

Daclizumab (trade name Zinbryta, by Biogen) is a therapeutic humanized monoclonal antibody which was used for the treatment of adults with relapsing forms of multiple sclerosis (MS).

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Damage-associated molecular pattern

Damage-associated molecular patterns (DAMPs), also known as danger-associated molecular patterns, danger signals, and alarmin, are host biomolecules that can initiate and perpetuate a noninfectious inflammatory response.

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Dendritic cell

Dendritic cells (DCs) are antigen-presenting cells (also known as accessory cells) of the mammalian immune system.

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Endothelium

Endothelium refers to cells that line the interior surface of blood vessels and lymphatic vessels, forming an interface between circulating blood or lymph in the lumen and the rest of the vessel wall.

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Eosinophil

Eosinophils sometimes called eosinophiles or, less commonly, acidophils, are a variety of white blood cells and one of the immune system components responsible for combating multicellular parasites and certain infections in vertebrates. Along with mast cells and basophils, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop during hematopoiesis in the bone marrow before migrating into blood, after which they are terminally differentiated and do not multiply. These cells are eosinophilic or "acid-loving" due to their large acidophilic cytoplasmic granules, which show their affinity for acids by their affinity to coal tar dyes: Normally transparent, it is this affinity that causes them to appear brick-red after staining with eosin, a red dye, using the Romanowsky method. The staining is concentrated in small granules within the cellular cytoplasm, which contain many chemical mediators, such as eosinophil peroxidase, ribonuclease (RNase), deoxyribonucleases (DNase), lipase, plasminogen, and major basic protein. These mediators are released by a process called degranulation following activation of the eosinophil, and are toxic to both parasite and host tissues. In normal individuals, eosinophils make up about 1–3% of white blood cells, and are about 12–17 micrometres in size with bilobed nuclei. While they are released into the bloodstream as neutrophils are, eosinophils reside in tissue They are found in the medulla and the junction between the cortex and medulla of the thymus, and, in the lower gastrointestinal tract, ovary, uterus, spleen, and lymph nodes, but not in the lung, skin, esophagus, or some other internal organs under normal conditions. The presence of eosinophils in these latter organs is associated with disease. For instance, patients with eosinophilic asthma have high levels of eosinophils that lead to inflammation and tissue damage, making it more difficult for patients to breathe. Eosinophils persist in the circulation for 8–12 hours, and can survive in tissue for an additional 8–12 days in the absence of stimulation. Pioneering work in the 1980s elucidated that eosinophils were unique granulocytes, having the capacity to survive for extended periods of time after their maturation as demonstrated by ex-vivo culture experiments.

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Epithelium

Epithelium is one of the four basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue.

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Epitope

An epitope, also known as antigenic determinant, is the part of an antigen that is recognized by the immune system, specifically by antibodies, B cells, or T cells.

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Everolimus

No description.

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Fc receptor

An Fc receptor is a protein found on the surface of certain cells – including, among others, B lymphocytes, follicular dendritic cells, natural killer cells, macrophages, neutrophils, eosinophils, basophils, human platelets, and mast cells – that contribute to the protective functions of the immune system.

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Fibroblast

A fibroblast is a type of biological cell that synthesizes the extracellular matrix and collagen, the structural framework (stroma) for animal tissues, and plays a critical role in wound healing.

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Fibrosis

Fibrosis is the formation of excess fibrous connective tissue in an organ or tissue in a reparative or reactive process.

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Fragment antigen-binding

The antigen-binding (Fab) fragment is a region on an antibody that binds to antigens.

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Fragment crystallizable region

The fragment crystallizable region (Fc region) is the tail region of an antibody that interacts with cell surface receptors called Fc receptors and some proteins of the complement system.

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Galactose-alpha-1,3-galactose

Galactose-alpha-1,3-galactose, commonly known as alpha gal, is a carbohydrate found in most mammalian cell membranes.

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Gastroesophageal reflux disease

Gastroesophageal reflux disease (GERD), also known as acid reflux, is a long-term condition where stomach contents come back up into the esophagus resulting in either symptoms or complications.

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Gene expression profiling

In the field of molecular biology, gene expression profiling is the measurement of the activity (the expression) of thousands of genes at once, to create a global picture of cellular function.

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Gene therapy

In the medicine field, gene therapy (also called human gene transfer) is the therapeutic delivery of nucleic acid into a patient's cells as a drug to treat disease.

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Glomerulus

Glomerulus is a common term used in anatomy to describe globular structures of entwined vessels, fibers, or neurons.

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Graft-versus-host disease

Graft-versus-host disease (GvHD) is a medical complication following the receipt of transplanted tissue from a genetically different person.

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Graft-versus-tumor effect

Graft-versus-tumor effect (GvT) appears after allogeneic hematopoietic stem cell transplantation (HSCT).

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H&E stain

Hematoxylin and eosin stain or haematoxylin and eosin stain (H&E stain or HE stain) is one of the principal stains in histology.

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Heart transplantation

A heart transplant, or a cardiac transplant, is a surgical transplant procedure performed on patients with end-stage heart failure or severe coronary artery disease when other medical or surgical treatments have failed.

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Hematopoietic stem cell

Hematopoietic stem cells (HSCs) are the stem cells that give rise to other blood cells.

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Hematopoietic stem cell transplantation

Hematopoietic stem cell transplantation (HSCT) is the transplantation of multipotent hematopoietic stem cells, usually derived from bone marrow, peripheral blood, or umbilical cord blood.

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Histology

Histology, also microanatomy, is the study of the anatomy of cells and tissues of plants and animals using microscopy.

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Human blood group systems

The term human blood group systems is defined by International Society of Blood Transfusion as systems in the human species where cell-surface antigens—in particular, those on blood cells—are "controlled at a single gene locus or by two or more very closely linked homologous genes with little or no observable recombination between them", and include the common ABO and Rh- (Rhesus) antigen systems, as well as many others; thirty-five major human systems are identified as of November 2014.

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Human leukocyte antigen

The human leukocyte antigen (HLA) system or complex is a gene complex encoding the major histocompatibility complex (MHC) proteins in humans.

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Humoral immunity

Humoral immunity or humoural immunity is the aspect of immunity that is mediated by macromolecules found in extracellular fluids such as secreted antibodies, complement proteins, and certain antimicrobial peptides.

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Hydrocortisone

Hydrocortisone, sold under a number of brand names, is the name for the hormone cortisol when supplied as a medication.

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Immune system

The immune system is a host defense system comprising many biological structures and processes within an organism that protects against disease.

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Immunosuppression

Immunosuppression is a reduction of the activation or efficacy of the immune system.

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Immunosuppressive drug

Immunosuppressive drugs or immunosuppressive agents or antirejection medications are drugs that inhibit or prevent activity of the immune system.

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Inflammation

Inflammation (from inflammatio) is part of the complex biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants, and is a protective response involving immune cells, blood vessels, and molecular mediators.

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Innate immune system

The innate immune system, also known as the non-specific immune system or in-born immunity system, is an important subsystem of the overall immune system that comprises the cells and mechanisms involved in the defense of the host from infection by other organisms.

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Ischemia

Ischemia or ischaemia is a restriction in blood supply to tissues, causing a shortage of oxygen that is needed for cellular metabolism (to keep tissue alive).

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Joseph Murray

Joseph Edward Murray (April 1, 1919 – November 26, 2012) was an American plastic surgeon who performed the first successful human kidney transplant on identical twins Richard and Ronald Herrick on December 23, 1954.

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Kidney

The kidneys are two bean-shaped organs present in left and right sides of the body in vertebrates.

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Lung transplantation

Lung transplantation or pulmonary transplantation is a surgical procedure in which a patient's diseased lungs are partially or totally replaced by lungs which come from a donor.

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Lymph node

A lymph node or lymph gland is an ovoid or kidney-shaped organ of the lymphatic system, and of the adaptive immune system, that is widely present throughout the body.

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Lymphatic system

The lymphatic system is part of the vascular system and an important part of the immune system, comprising a network of lymphatic vessels that carry a clear fluid called lymph (from Latin, lympha meaning "water") directionally towards the heart.

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Lymphocyte

A lymphocyte is one of the subtypes of white blood cell in a vertebrate's immune system.

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Macrophage

Macrophages (big eaters, from Greek μακρός (makrós).

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Magnetic resonance imaging

Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body in both health and disease.

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Major histocompatibility complex

The major histocompatibility complex (MHC) is a set of cell surface proteins essential for the acquired immune system to recognize foreign molecules in vertebrates, which in turn determines histocompatibility.

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MHC class II

MHC class II molecules are a class of major histocompatibility complex (MHC) molecules normally found only on antigen-presenting cells such as dendritic cells, mononuclear phagocytes, some endothelial cells, thymic epithelial cells, and B cells.

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Micrograph

A micrograph or photomicrograph is a photograph or digital image taken through a microscope or similar device to show a magnified image of an item.

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Molecular diffusion

Molecular diffusion, often simply called diffusion, is the thermal motion of all (liquid or gas) particles at temperatures above absolute zero.

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Monoclonal antibody

Monoclonal antibodies (mAb or moAb) are antibodies that are made by identical immune cells that are all clones of a unique parent cell.

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MTOR

The mammalian target of rapamycin (mTOR), also known as the mechanistic target of rapamycin and FK506-binding protein 12-rapamycin-associated protein 1 (FRAP1), is a kinase that in humans is encoded by the MTOR gene.

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Muromonab-CD3

Muromonab-CD3 (trade name Orthoclone OKT3, marketed by Janssen-Cilag) is an immunosuppressant drug given to reduce acute rejection in patients with organ transplants.

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Mycophenolic acid

Mycophenolic acid, less accurately called mycophenolate, is an immunosuppressant drug used to prevent rejection in organ transplantation.

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Myofibroblast

A myofibroblast is a cell that is in between a fibroblast and a smooth muscle cell in phenotype.

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Neutrophil

Neutrophils (also known as neutrocytes) are the most abundant type of granulocytes and the most abundant (40% to 70%) type of white blood cells in most mammals.

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Opsonin

An opsonin (from the Greek opsōneîn, to prepare for eating) is any molecule that enhances phagocytosis by marking an antigen for an immune response or marking dead cells for recycling (i.e., causes the phagocyte to "relish" the marked cell).

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Organ transplantation

Organ transplantation is a medical procedure in which an organ is removed from one body and placed in the body of a recipient, to replace a damaged or missing organ.

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Paratope

A paratope, also called an antigen-binding site, is a part of an antibody which recognizes and binds to an antigen.

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Pattern recognition receptor

Pattern recognition receptors (PRRs) play a crucial role in the proper function of the innate immune system.

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Peptide

Peptides (from Gr.: πεπτός, peptós "digested"; derived from πέσσειν, péssein "to digest") are short chains of amino acid monomers linked by peptide (amide) bonds.

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Periodic acid–Schiff stain

Periodic acid–Schiff (PAS) is a staining method used to detect polysaccharides such as glycogen, and mucosubstances such as glycoproteins, glycolipids and mucins in tissues.

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Peripheral blood cell

Peripheral blood cells are the cellular components of blood, consisting of red blood cells (erythrocytes), white blood cells (leucocytes), and platelets, which are found within the circulating pool of blood and not sequestered within the lymphatic system, spleen, liver, or bone marrow.

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Phagocyte

Phagocytes are cells that protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells.

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Plasma cell

Plasma cells, also called plasma B cells, plasmocytes, plasmacytes, or effector B cells, are white blood cells that secrete large volumes of antibodies.

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Post-transplant lymphoproliferative disorder

Post-transplant lymphoproliferative disorder (PTLD) is the name given to a B-cell proliferation due to therapeutic immunosuppression after organ transplantation.

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Prednisolone

Prednisolone is a steroid medication used to treat certain types of allergies, inflammatory conditions, autoimmune disorders, and cancers.

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Programmed cell death

Programmed cell death (or PCD) is the death of a cell in any form, mediated by an intracellular program.

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Pulmonary insufficiency

Pulmonary insufficiency (or incompetence, or regurgitation) is a condition in which the pulmonary valve is incompetent and allows backflow from the pulmonary artery to the right ventricle of the heart during diastole.

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Radioactive tracer

A radioactive tracer, or radioactive label, is a chemical compound in which one or more atoms have been replaced by a radionuclide so by virtue of its radioactive decay it can be used to explore the mechanism of chemical reactions by tracing the path that the radioisotope follows from reactants to products.

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Red blood cell

Red blood cells-- also known as RBCs, red cells, red blood corpuscles, haematids, erythroid cells or erythrocytes (from Greek erythros for "red" and kytos for "hollow vessel", with -cyte translated as "cell" in modern usage), are the most common type of blood cell and the vertebrate's principal means of delivering oxygen (O2) to the body tissues—via blood flow through the circulatory system.

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Rituximab

Rituximab, sold under the brand name Rituxan among others, is a medication used to treat certain autoimmune diseases and types of cancer.

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Shortness of breath

Shortness of breath, also known as dyspnea, is the feeling that one cannot breathe well enough.

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Sirolimus

Sirolimus, also known as rapamycin, is a macrolide compound that is used to coat coronary stents, prevent organ transplant rejection and to treat a rare lung disease called lymphangioleiomyomatosis.

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Stem cell

Stem cells are biological cells that can differentiate into other types of cells and can divide to produce more of the same type of stem cells.

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Syndrome

A syndrome is a set of medical signs and symptoms that are correlated with each other and, often, with a particular disease or disorder.

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Systemic inflammatory response syndrome

Systemic inflammatory response syndrome (SIRS) is an inflammatory state affecting the whole body.

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T cell

A T cell, or T lymphocyte, is a type of lymphocyte (a subtype of white blood cell) that plays a central role in cell-mediated immunity.

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T helper cell

The T helper cells (Th cells) are a type of T cell that play an important role in the immune system, particularly in the adaptive immune system.

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T-cell receptor

The T-cell receptor, or TCR, is a molecule found on the surface of T cells, or T lymphocytes, that is responsible for recognizing fragments of antigen as peptides bound to major histocompatibility complex (MHC) molecules.

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Tacrolimus

No description.

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Toll-like receptor

Toll-like receptors (TLRs) are a class of proteins that play a key role in the innate immune system.

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Transplant glomerulopathy

Transplant glomerulopathy, abbreviated TG, is a disease of the glomeruli in transplanted kidneys.

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Twin

Twins are two offspring produced by the same pregnancy.

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United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain,Usage is mixed with some organisations, including the and preferring to use Britain as shorthand for Great Britain is a sovereign country in western Europe.

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White blood cell

White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.

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Xenotransplantation

Xenotransplantation (xenos- from the Greek meaning "foreign"), is the transplantation of living cells, tissues or organs from one species to another.

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Redirects here:

Acute organ rejection, Acute rejection, Acute transplant rejection, Chronic rejection, Chronic transplant rejection, Demi-Lee Brennan, Graft rejection, Host versus graft, Host vs. graft, Host-versus-graft disease, Hyperacute rejection, Immune rejection, Organ rejection, Organ transplant rejection, Rejection of the graft, Rejection reaction, Tissue rejection, Transplant Rejection, Transplantation immunology.

References

[1] https://en.wikipedia.org/wiki/Transplant_rejection

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