| antigen |
Any foreign or "non-self" substance that, when introduced into the body, causes the immune system to create an antibody.
Ãâó: www.i-bio.gov.uk/UkBioportal/Beginners/html/glossa...
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| antigen |
Any piece of a substance (foreign protein, toxin, bacteria) that can induce a specific immune response or react to a specific antibody or T-cell.
Ãâó: www.aidsinfonyc.org/hivplus/issue9/report/glossary...
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| antigen-presenting cell |
A cell that can process an infectious agent and present pieces of it (antigens) to T-cells. Dendritic cells and macrophages function as APCs.
Ãâó: www.aidsinfonyc.org/hivplus/issue9/report/glossary...
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| antigen g. |
the acquisition by cells of new antigenic determinants not normally present or not normally accessible in the parent tissue.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| antigen p. |
the activity in which macrophages ingest and partially digest antigens and then present the processed antigen on their surfaces to B and T lymphocytes. The presented antigen is more immunogenic than unprocessed antigen, possibly because it has been broken down into pieces more easily recognized by B and T cells, because it remains on the surface of the presenting cell for a long time, or because it is presented in association with self MHC antigen and thus able to stimulate helper T cells. The principal antigen-presenting cells are dendritic cells in B-dependent areas of lymphoid tissues, interdigitating cells in T-dependent areas, and Langerhans cells in the epidermis.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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