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antigen |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.06 sec. |
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antigen: see immunity immunity, ability of an organism to resist disease by identifying and destroying foreign substances or organisms. Although all animals have some immune capabilities, little is known about nonmammalian immunity. ..... Click the link for more information. . antigenForeign substance in the body that induces an immune response. The antigen stimulates lymphocytes to produce antibodies or to attack the antigen directly (see antibody;immunity). Virtually any large foreign molecule can act as an antigen, including those of bacteria, viruses, parasites, foods, venoms, blood components, and cells and tissues of various species, including other humans. Sites on the antigen's surface fit and bind to receptor molecules on the lymphocytes' surface, stimulating the latter to multiply and initiate an immune response that neutralizes or destroys the antigen. |
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| This occurs because the AnergiX complex binds to autoimmune T cell antigen receptors in the absence of co- announced today that its five-year agreement with Bristol-Myers Squibb to collaborate on the development of T cell antigen receptors for autoimmune diseases will end, as scheduled, in February 1995. |
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antigen receptors
