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the PDF - British Society for Immunology
the PDF - British Society for Immunology

... molecules produced by white blood cells are ‘poisonous’ for bacteria. However the immune system also has cells (cytotoxic T cells) that can kill other cells of the body that have become infected. They use a variety of toxic molecules to kill the infected cells, and it is only because the molecules a ...
Hypersensitivity
Hypersensitivity

... • Anaphylactic shock is the most serious • Symptoms are directly related to the massive release of vasoactive substances leading to fall in blood pressure, shock, difficulty in breathing and even death. • It can be due to the following: – Horse gamma globulin given to patients who are sensitized to ...
Basis and Clinical Applications of Interferon
Basis and Clinical Applications of Interferon

allergies - West Campus | Pima Community College, Tucson
allergies - West Campus | Pima Community College, Tucson

... Innocuous antigens can cause type II hypersensitivity reactions in susceptible individuals by binding to the surfaces of circulating blood cells AB-mediated destruction of RBC (hemolytic anemia) or platelets (thrombocytopenia) is an uncommon side-effect associated with the intake of certain drugs s ...
Applications in Dermatology, Dentistry and LASIK Eye Surgery using
Applications in Dermatology, Dentistry and LASIK Eye Surgery using

... the top, where they are shed from the surface as dead skin cells. The epidermal layer is constantly renewing itself, the live cells changing into dead, hard, flattened cells. Melanocytes and Langerhans cells are other important cells found in the epidermis which have some specialized functions. • Me ...
3.Immune system - distanceeducation.ws
3.Immune system - distanceeducation.ws

Major Histocompability Complex (MHC)
Major Histocompability Complex (MHC)

... The class I and II MHC genes encode human leukocyte antigens (HLAs), proteins that are displayed on the cell surface and define an individual’s tissue type . There are many possible tissue types in the population because each HLA exists as a large number of varieties. Everyone's immune system is tol ...
Chapter 21 - next2eden.net
Chapter 21 - next2eden.net

... connect structurally to defend the body from pathogens b. The organ set that accumulates pathogens and kills them c. The diverse set of molecules and immune cells that are found in lymphoid tissue and fluids throughout the body d. The set of organs that provides antibodies Copyright © 2010 Pearson E ...
Autoimmune Disease
Autoimmune Disease

... environmental trigger resembles (mimics) a component of the body sufficiently that an immune attack is directed against the cross-reacting body component. One of the best-characterized examples of molecular mimicry is the relationship between the M protein of Streptococcus pyogenes and the myosin of ...
Bulletin 1345.qxd - Bio-Rad
Bulletin 1345.qxd - Bio-Rad

... transfer into non-adherent, murine bone marrow cells using electroporation. We have used the Gene Pulser® apparatus to electro-transfect either a murine MHC class II gene, ABb, or a plasmid encoding a mutant dihydrofolate reductase enzyme (dhfr) into murine bone marrow cells.1 In these studies, we d ...
GroupE-pneumonia_presentations
GroupE-pneumonia_presentations

... If microorganisms get past the upper airway defense system of coughing and mucociliary clearance then the alveolar macrophages are the next defense If there are too many microorganisms or they are too strong for the macrophages there is a full activation of inflammatory mediators, immune activation ...
Humoral Immune Response
Humoral Immune Response

... Helper T-cells interact with antigenic molecule and release substances which stimulate B-cells to produce antibody.  Suppressor T-cells are thought to “turn off” B-cells.  Very fine balance between the action of helper and suppressor T-cells. ...
Antigens and antibidies
Antigens and antibidies

Autoimmune Diseases
Autoimmune Diseases

... UVB=> flares of both cutaneous and internal organ lupus (some antigens, like Ro, La, RNP, but not chromatin antigens and other nuclear components are translocated to keratinocyte cell surface, favorising the immune response); decrease DNA methylation and induces gene expression; increase expression ...
Folie 1
Folie 1

... • Precise function of Mx proteins remains uncertain  GTPase activity? • Contribution of alternative PKR substrates to immune response is poorly explored • Roles of PKR in regulation of inflammatory response • Precise roles of different OAS proteins • cataloguing of SNPs (single nucleotide polymorph ...
Literature Review 2009
Literature Review 2009

... - Investigated the effects of HDACi’s on the maturation and activation of human DC’s in the presence of INF-gamma and LPS (SAHA and TSA) o Th1 and Th17 inducing cytokines IL-12 and IL-23 o Block Th1 attracting chemokines CXCL9, CXCL10, CXCL11 o HDACi’s = Immunomodulary at nonapoptotic doses De Boer ...
11.03.2011
11.03.2011

...  Cytokines regulate which isotype occurs: IL-4 stimulates switching to IgG1 and IgE, IgG4 TGFb stimulates switching to IgG2 and IgA ...
TG20, a Transgenically-Derived Anti-CD20
TG20, a Transgenically-Derived Anti-CD20

... cost of treatment with rituximab and other anti-CD20 mAbs severely curtails their availability to patients in emerging economies, as well as their use post treatment for maintenance therapy. ...
The effect of the sympathetic nervous system on the production of
The effect of the sympathetic nervous system on the production of

... monocyte/macrophage direction, while in case of the other two celltypes, immunmodulant effect of isoproterenol could not be shown. • The other stimulus was the aspecific immunological inductor PMA. Its choice was justified by that we tried to follow the change of immunmodulation during differentiati ...
The Control of Oxygen Affinity of Red Cells with Hb
The Control of Oxygen Affinity of Red Cells with Hb

Transplant Physiology of Sep 16 2009 by Dr. A. Gangji
Transplant Physiology of Sep 16 2009 by Dr. A. Gangji

... Intact donor MHC molecules are also known to be continuously shed into the circulation where they may then be endocytosed by the recipient's antigen-presenting cells. Within the acidic endosomal compartment, the MHC proteins are fragmented into their constituent peptides. They are then transferred i ...
Chapter I Overview of Immunology
Chapter I Overview of Immunology

...  Physical barrier : skin and mucosa  Chemical barrier: antimicrobial substances in secretion of skin and mucosa  Biotic barrier: normal flora existing on the surface of skin and mucosa  Anatomic barrier . blood- brain barrier . blood- placental barrier . blood- tymus barrier ...
human immune system can respond naturally to fight cancer
human immune system can respond naturally to fight cancer

... rely on the single-target-based treatments typically found in current therapies. Having identified a specific type of protective B cell (NIMPAB), her research has now established how vital these can be within the immunological process, due to their ability to mop up and kill cancer cells. INTELLIGEN ...
APC & Antigen presentation
APC & Antigen presentation

... FDC express high levels of membrane receptors for antibody and complement. By these, FDC actives the B cells in lymph nodes. ...
Antigen processing and presentation
Antigen processing and presentation

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Innate immune system



The innate immune system, also known as the nonspecific immune system, is an important subsystem of the overall immune system that comprises the cells and mechanisms that defend the host from infection by other organisms. The cells of the innate system recognize and respond to pathogens in a generic way, but, unlike the adaptive immune system (which is found only in vertebrates), it does not confer long-lasting or protective immunity to the host. Innate immune systems provide immediate defense against infection, and are found in all classes of plant and animal life. They include both humoral immunity components and cell-mediated immunity components.The innate immune system is an evolutionarily older defense strategy, and is the dominant immune system found in plants, fungi, insects, and primitive multicellular organisms.The major functions of the vertebrate innate immune system include: Recruiting immune cells to sites of infection, through the production of chemical factors, including specialized chemical mediators, called cytokines Activation of the complement cascade to identify bacteria, activate cells, and promote clearance of antibody complexes or dead cells The identification and removal of foreign substances present in organs, tissues, the blood and lymph, by specialised white blood cells Activation of the adaptive immune system through a process known as antigen presentation Acting as a physical and chemical barrier to infectious agents.↑ ↑ ↑
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