Changes: Antigen

Revision as of 18:56, 8 September 2006

An antigen is a substance or molecule that elicits an immune response. Antigens are frequently peptides or carbohydrates derived either from the host ("self-antigens" or "autoantigens") or from pathogens such as bacteria or viruses. Antigens are presented on the surface of cells by specialized protein complexes in a manner that elicits either an antibody response or a cytotoxic effector cell response.

Doctor Julian Bashir administered an antigen to several Teplan patients in late 2372, hoping it would help cure the Teplan blight. Although it was later determined injecting patients with antigens would not cure them of the Dominion-created disease, the antigen was able to allow the children of the Teplans to be immune, as the antigen was absorbed by the placenta, and could prevent them from developing the blight. (DS9: "The Quickening")

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-An '''antigen''' is a [[chemical]] or [[molecule]] that elicits an [[immune system|immune]] response. ''Antigens'' are frequently [[Cellular peptide|peptides]] or [[carbohydrate]]s derived either from the host ("self-antigens" or "autoantigens") or from pathogens such as [[bacteria]] or [[virus]]es. ''Antigens'' are presented on the surface of [[cell (biology)|cells]] by specialized [[protein]] complexes in a manner that elicits either an [[antibody]] response or a cytotoxic effector cell response.
+An '''antigen''' is a [[material|substance]] or [[molecule]] that elicits an [[immune system|immune]] response. Antigens are frequently peptides or carbohydrates derived either from the host ("self-antigens" or "autoantigens") or from pathogens such as [[bacteria]] or [[virus]]es. Antigens are presented on the surface of [[cell (biology)|cells]] by specialized [[protein]] complexes in a manner that elicits either an [[antibody]] response or a cytotoxic effector cell response.
-[[Doctor]] [[Julian Bashir]] administered antigen to several [[Teplan]] patients in late [[2372]], hoping it would help cure the [[Teplan blight]]. Although it was later determined injecting patients with antigen would not cure them of the [[Dominion]]-created [[disease]], the antigen was able to allow the children of the Teplans to be immune, as the antigen was absorbed by the [[placenta]], and could prevent them from developing the blight. ([[DS9]]: "[[The Quickening]]")
+[[Doctor]] [[Julian Bashir]] administered an antigen to several [[Teplan]] patients in late [[2372]], hoping it would help cure the [[Teplan blight]]. Although it was later determined injecting patients with antigens would not cure them of the [[Dominion]]-created [[disease]], the antigen was able to allow the children of the Teplans to be immune, as the antigen was absorbed by the [[placenta]], and could prevent them from developing the blight. ([[DS9]]: "[[The Quickening]]")
 [[Category:Drugs]]