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Fundamental Immunology, Basic Immunology And Allergy Immunology

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By Author: Stephen Jones
Total Articles: 35
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Immunology is a broad branch of biomedical science that covers the study of all aspects of the immune system in all organisms. The immune system is the body's defense against infectious organisms and other invaders. Through a series of steps called the immune response, the immune system attacks organisms and substances that invade our systems and cause disease. The immune system is made up of a network of cells, tissues, and organs that work together to protect the body. The immune system is the body's natural defence in combating organisms. The immune system usually have two lines of defence: the innate immune system representing a non-specific (no memory) response to antigen (substance to which the body regards as foreign or potentially harmful) and the adaptive immune system, which displays a high degree of memory and specificity. The innate system represents the first line of defence to an intruding pathogen and includes various cells like the natural killer (NK) cells, mast cells dendritic cells and phagocytes. Besides there are molecules like complement, acute phase proteins (APP) and interferons (IFNs) which work in concert ...
... with the cells of the innate immune system and which foster close functional links with their adaptive counterpart. The adaptive immune system is further divided into humoral and cellular components. Cell-mediated immunity, also known as delayed-type hypersensitivity (DTH) or Type IV Hypersensitivity, is an immune response that does not involve antibodies but rather involves the activation of macrophages, natural killer cells (NK), antigen-specific cytotoxic T-lymphocytes, and the release of various cytokines in response to an antigen. The humoral immune response (HIR) is the aspect of immunity that is mediated by secreted antibodies, produced in the cells of the B lymphocyte lineage (B cell). When activated by foreign antigen, B cells undergo proliferation and mature into antibody secreting plasma cells which posses the ability to secrete soluble proteins (antibodies). Antibodies which are classified into five different types (known as isotypes), namely IgM, IgG, IgA, IgE and IgD, have two roles to play - the first is to bind antigen and the second is to interact with host tissues and effector systems in order to ensure removal of the antigen. Thus the immune system generally is protective, however the same immunologic mechanisms that defend the host at times may result in severe damage to tissues and, occasionally, may cause death.
Conceptualizing the natural antigen- antibody development & interaction, Imgenex Corp. develops and commercializes novel reagents for the scientific study of human biology and disease and for the production of new diagnostic assays and potential therapies of such diseases. These novel reagents include antibodies, gene and protein expression systems, and arrays of various cells and tissues for use in studies of functional genomics. Areas of biological interest at IMGENEX include cancer, apoptosis (programmed cell death), molecular signaling pathways, cellular aging, and metabolic and infectious diseases.

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IMGENEX India Pvt Ltd. the only biotech company in Orissa and one of its kinds in Eastern India. IMGENEX India started in Oct as an outsourcing branch of IMGENEX Corporation, San Diego, USA. Find out more information about immunology.

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