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Veterinary Immunology and Immunopathology
Veterinary Immunology and Immunopathology

Waldenstrom`s Macroglobulinemia Basic Immunology
Waldenstrom`s Macroglobulinemia Basic Immunology

... acquired immune response is highly specific for a particular antigen; thus, an individual needs to have an initial contact with the foreign antigen, which in turn triggers a chain of events leading to this form of immunity. The acquired immune response not only improves with each successive exposure ...
The Effect of Influenza A Viral Infection on Dendritic Cells` Antigen
The Effect of Influenza A Viral Infection on Dendritic Cells` Antigen

... Another signaling pathway in DCs is called cross-presentation. The DCs have the ability to also present exogenous antigens by efficiently extracting extracellular peptides from dead and infected cells and presenting them on MHC-class I, see Figure 3. Crosspresentation is preferable in specific types ...
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... Understanding this peptide loading process is important for rational vaccine design, as vaccines should optimize the ability to load the class II MHC with pathogen-derived peptide fragments. ...
PowerPoint to accompany
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... • The complement system is a biochemical cascade that helps clear pathogens from an organism • It is part of the innate immune system • The complement system consists of a number of small proteins found in the blood, normally circulating as inactive zymogens • When these proteins are stimulated by o ...
Facts and Concepts
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... 1. Outer layer consists of sclera and cornea 2. Middle layer consists of choroid, ciliary body and iris 3. Inner layer consists of retina Functions of the major parts of the eye: Sclera or Scleroid Layer – (white of eye) a tough protective layer of connective tissue that helps maintain the shape of ...
Rheumatic Heart Disease: Genes, Inflammation and Autoimmunity
Rheumatic Heart Disease: Genes, Inflammation and Autoimmunity

... anti-inflammatory cytokines. It is produced by activated immune cells, especially monocytes/macrophages and T cell subsets including regulatory T cells (Tr1 and T reg) and Th1 cells [22]. A large number of polymorphisms have been identified in the IL-10 gene promoter. Polymorphisms in this region ar ...
The Lymphatic System “The Garbage Disposal System”
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About Chronic Myeloid Leukemia What Is Chronic Myeloid Leukemia?

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IC31 and IC30, novel types of vaccine adjuvant based on peptide

... albumin or horseradish peroxidase, into cells [4,5]. These observations have prompted scientists at Intercell AG to identify, in the context of vaccination, peptides capable of transporting antigens into cells. Early studies indicated a potent role of polyL-arginine (IC30) in enhancing the uptake of ...
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... Mixing blood from two individuals can lead to blood clumping or agglutination. This can have fatal consequences. Karl Landsteiner discovered that blood clumping was an immunological reaction which occurs when the receiver of a blood transfusion has antibodies against the donor blood cells. Karl Land ...
antigen- antibody reactions - SOUTHERN MEDICAL UNIVERSITY
antigen- antibody reactions - SOUTHERN MEDICAL UNIVERSITY

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Monoclonal Antibodies and Recombinant DNA Technology: Present
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Crustacean hematopoiesis and the astakine cytokines.

... This cell type is rare in P. leniusculus but more common in marine crustaceans5, and so far, no molecular marker is available to identify this cell type. The number and proportion of different hemocyte types varies a great deal among crustaceans and is influenced by various environmental conditions6 ...
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T cell development and self tolerance PPT

... Mouse mammary tumour viruses (MMTV) Retroviruses that contain an open reading frame in a 3’ long terminal repeat that encodes a superantigen associated with the cell surface of APC Most mice carry 2-8 integrated MMTV proviruses in their genome ...
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Children`s Immune System - San Carlos Chiropractic

... position, it protects the nerve pathways. But when vertebrae become misaligned, interference to the nerve impulses occurs — which reduces the overall functioning of the nervous system and of the particular organ to which it is assigned. These spinal misalignments are known as "vertebral subluxations ...
Cytokine 5-plex Assay - Animal Health Diagnostic Center
Cytokine 5-plex Assay - Animal Health Diagnostic Center

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Adaptive immune system



The adaptive immune system, also known as the acquired immune 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 or prevent pathogen growth. The adaptive immune system is one of the two main immunity strategies found in vertebrates (the other being the innate immune system). Adaptive immunity creates immunological memory after an initial response to a specific pathogen, leads to an enhanced response to subsequent encounters with that pathogen. This process of acquired immunity is the basis of vaccination. Like the innate system, the adaptive system includes both humoral immunity components and cell-mediated immunity components.Unlike the innate immune system, the adaptive immune system is highly specific to a specific pathogen. Adaptive immunity can also provide long-lasting protection: for example; someone who recovers from measles is now protected against measles for their lifetime but in other cases it does not provide lifetime protection: for example; chickenpox. The adaptive system response destroys invading pathogens and any toxic molecules they produce. Sometimes the adaptive system is unable to distinguish foreign molecules, the effects of this may be hayfever, asthma or any other allergies. Antigens are any substances that elicit the adaptive immune response. The cells that carry out the adaptive immune response are white blood cells known as lymphocytes. Two main broad classes—antibody responses and cell mediated immune response—are also carried by two different lymphocytes (B cells and T cells). In antibody responses, B cells are activated to secrete antibodies, which are proteins also known as immunoglobulins. Antibodies travel through the bloodstream and bind to the foreign antigen causing it to inactivate, which does not allow the antigen to bind to the host.In acquired immunity, pathogen-specific receptors are ""acquired"" during the lifetime of the organism (whereas in innate immunity pathogen-specific receptors are already encoded in the germline). The acquired response is called ""adaptive"" because it prepares the body's immune system for future challenges (though it can actually also be maladaptive when it results in autoimmunity).The system is highly adaptable because of somatic hypermutation (a process of accelerated somatic mutations), and V(D)J recombination (an irreversible genetic recombination of antigen receptor gene segments). This mechanism allows a small number of genes to generate a vast number of different antigen receptors, which are then uniquely expressed on each individual lymphocyte. Because the gene rearrangement leads to an irreversible change in the DNA of each cell, all progeny (offspring) of that cell inherit genes that encode the same receptor specificity, including the memory B cells and memory T cells that are the keys to long-lived specific immunity.A theoretical framework explaining the workings of the acquired immune system is provided by immune network theory. This theory, which builds on established concepts of clonal selection, is being applied in the search for an HIV vaccine.
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