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antigen |
Also found in: Dictionary/thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia | 0.03 sec. |
antigenAny substance that causes the production of antibodies by the body's immune system. Common antigens include the proteins carried on the surface of bacteria, viruses, and pollen grains. The proteins of incompatible blood groups or tissues also act as antigens, which has to be taken into account in medical procedures such as blood transfusions and organ transplants. |
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Treatment with inhaled corticosteroids reduces expression of activation markers CD25 and human leukocyte antigen (HLA)-DR in lung lymphocytes and also reduces HLA-DR expression in blood lymphocytes (Wilson et al. The testing method, called human leukocyte antigen typing, was eventually deregulated and the process was commercialized. HLA: human leukocyte antigens, which are marker molecules on the surface of cells that identify cells as "self" and prevent the immune system from attacking them. |
human leukocyte antigen
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