surface antigen

См. также в других словарях:

• hepatitis B surface antigen — n an antigen that is usu. a surface particle from the hepatitis B virus and that is found in the sera esp. of patients with hepatitis B abbr. HBsAg called also Australia antigen * * * (HBsAg) a coat protein antigen of the hepatitis B virus… …   Medical dictionary

• hepatitis B surface antigen — noun : a protein that comprises the envelope of the virus causing hepatitis B and is found circulating in the blood plasma of infected individuals called also Australia antigen …   Useful english dictionary

• Hepatitis-B-surface-Antigen — Hepatitis B sur|face Anti|gen [...ßö̱rfiß...; engl. surface = Oberfläche] s; s, e: Bez. für das Oberflächenantigen der Hepatitis B; Abk.: HBsAg …   Das Wörterbuch medizinischer Fachausdrücke

• antigen presenting cell — A cell that carries on its surface antigen bound to MCH Class I or Class II molecules, and presents the antigen in this context to T cells. Includes macrophages, endothelium, dendritic cells and Langerhans cells of the skin. See also MHC… …   Dictionary of molecular biology

• Antigen processing — is a biological process that prepares antigens for presentation to special cells of the immune system called T lymphocytes. This process involves two distinct pathways for processing of antigens from an organism s own (self) proteins or… …   Wikipedia

• Antigen presentation — is a process in the body s immune system by which macrophages, dendritic cells and other cell types capture antigens and then enable their recognition by T cells. NOTOC The basis of adaptive immunity lies in the capacity of immune cells to… …   Wikipedia

• antigen-presenting cell — n any of various cells (as a macrophage or a B cell) that take up and process an antigen into a form that when displayed at the cell surface in combination with a molecule of the major histocompatibility complex is recognized by and serves to… …   Medical dictionary

• Antigen — Each antibody binds to a specific antigen; an interaction similar to a lock and key. An antigen is a foreign molecule that, when introduced into the body, triggers the production of an antibody by the immune system. The immune system will then… …   Wikipedia

• antigen — antigenic /an ti jen ik/, adj. antigenically, adv. antigenicity /an ti jeuh nis i tee/, n. /an ti jeuhn, jen /, n. 1. Immunol. any substance that can stimulate the production of antibodies and combine specifically with them. 2. Pharm. any… …   Universalium

• Antigen-presenting cell — An antigen presenting cell (APC) or accessory cell is a cell that displays foreign antigen complexed with MHC on its surface. T cells may recognize this complex using their T cell receptor (TCR). Types APCs fall into two categories: professional… …   Wikipedia

• Antigen-Shedding — Schematische Darstellung des Antigen Sheddings mit einer ADAM Metalloproteasen. Unter dem Begriff Antigen Shedding versteht man in der Immunologie das Abstoßen von Antigenen von der Zellmembran von Körperzellen. Der Begriff wird vor allem in der… …   Deutsch Wikipedia