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Antibody Therapy (other)
Antibody therapy may refer to several different uses of antibodies for the treatment of medical conditions. *Monoclonal antibody therapy * Oligoclonal antibody therapy e.g. MM-151 *Antiserum *Intravenous immunoglobulin Immunoglobulin therapy is the use of a mixture of antibodies (normal human immunoglobulin or NHIG) to treat several health conditions. These conditions include primary immunodeficiency, immune thrombocytopenic purpura, chronic inflammatory d ...
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Antibody
An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein used by the immune system to identify and neutralize foreign objects such as pathogenic bacteria and Viral disease, viruses. The antibody recognizes a unique molecule of the pathogen, called an antigen. Each tip of the "Y" of an antibody contains a paratope (analogous to a lock) that is specific for one particular epitope (analogous to a key) on an antigen, allowing these two structures to bind together with precision. Using this binding mechanism, an antibody can ''tag'' a microbe or an infected cell for attack by other parts of the immune system, or can neutralize it directly (for example, by blocking a part of a virus that is essential for its invasion). To allow the immune system to recognize millions of different antigens, the antigen-binding sites at both tips of the antibody come in an equally wide variety. In contrast, the remainder of the antibody is relatively constant. It only occurs ...
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Monoclonal Antibody Therapy
Monoclonal antibody therapy is a form of immunotherapy that uses monoclonal antibodies (mAbs) to bind monospecifically to certain cells or proteins. The objective is that this treatment will stimulate the patient's immune system to attack those cells. Alternatively, in radioimmunotherapy a radioactive dose localizes a target cell line, delivering lethal chemical doses. Antibodies have been used to bind to molecules involved in T-cell regulation to remove inhibitory pathways that block T-cell responses. This is known as immune checkpoint therapy. It is possible to create a mAb that is specific to almost any extracellular/cell surface target. Research and development is underway to create antibodies for diseases (such as rheumatoid arthritis, multiple sclerosis, Alzheimer's disease, Ebola and different types of cancers). Antibody structure and function Immunoglobulin G ( IgG) antibodies are large heterodimeric molecules, approximately 150 kDa and are composed of two ki ...
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Oligoclonal Antibody
Oligoclonal antibodies are an emerging immunological treatment relying on the combinatory use of several monoclonal antibodies (mAb) in one single drug. The composition can be made of mAb targeting different epitopes of a same protein (homo-combination) or mAb targeting different proteins (hetero-combination). It mimicks the natural polyclonal humoral immunological response to get better efficiency of the treatment. This strategy is most efficient in infections and in cancer treatment as it allow to overcome acquired resistance by pathogens and the plasticity of cancers. History Oligoclonal antibody treatment is a part of the serotherapy strategy (or antiserum). 19th century: Serotherapy was initiated thanks to Shibasaburo Kitasato and Emil von Behring in Germany, and Emile Roux in France. It is the administration of animal or human serum that was previously exposed to a pathogen and thus contains antibodies against it and will help the patient to fight infection. 1975 and 19 ...
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Antiserum
Antiserum is a blood serum containing monoclonal or polyclonal antibodies that is used to spread passive immunity to many diseases via blood donation ( plasmapheresis). For example, convalescent serum, passive antibody transfusion from a previous human survivor, used to be the only known effective treatment for ebola infection with a high success rate of 7 out of 8 patients surviving. Antisera are widely used in diagnostic virology laboratories. The most common use of antiserum in humans is as antitoxin or antivenom to treat envenomation. Serum therapy, also known as serotherapy, describes the treatment of infectious disease using the serum of animals that have been immunized against the specific organisms or their product, to which the disease is supposedly referable. History In 1890, Emil Behring and Kitasato Shibasaburō published their first paper on serum therapy. Behring had pioneered the technique, using guinea pigs to produce serum. Based on his observation t ...
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