natural killer cells

natural killer cells
NK c's.

Medical dictionary. 2011.

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  • natural killer cells — (= NK cells) See killer cells …   Dictionary of molecular biology

  • Natural killer cell — Latin lymphocytus K Code TH H2.00.04.1.02006 Natural killer cells (or NK cells) are a type of cytotoxic lymphocyte that constitute a major component of the innate immune system. NK cells play a major role in the rejection of …   Wikipedia

  • killer cells — (= K cells) (1) Mammalian cells which can lyse antibody coated target cells. They have a receptor for the Fc portion of IgG, and are probably of the mononuclear phagocyte lineage, though some may be lymphocytes. Not to be confused with cytotoxic… …   Dictionary of molecular biology

  • Natural Killer T cell — Natural killer T (NKT) cells are a heterogeneous group of T cells that share properties of both T cells and natural killer (NK) cells. Many of these cells recognize the non polymorphic CD1d molecule, an antigen presenting molecule that binds self …   Wikipedia

  • natural killer cell — n a large granular lymphocyte capable esp. of destroying tumor cells or virally infected cells without prior exposure to the target cell and without having it presented with or marked by a histocompatibility antigen called also NK cell …   Medical dictionary

  • natural killer cell — Immunol. a small killer cell that destroys virus infected cells or tumor cells without activation by an immune system cell or antibody. Cf. killer T cell. * * * …   Universalium

  • natural killer cell — a type of lymphocyte that is able to kill virus infected cells and cancerous cells and mediates rejection of bone marrow grafts. NK cells are a part of natural (or innate) immunity. Their function is regulated by a balance between activating… …   Medical dictionary

  • natural killer cell — NK cell a type of lymphocyte that is able to kill virus infected cells and cancerous cells and mediates rejection of bone marrow grafts. NK cells are a part of natural (or innate) immunity. Their function is regulated by a balance between… …   The new mediacal dictionary

  • natural killer cell — nat′ural kill′er cell n. bai (mcr imv)imu a small killer cell that destroys virus infected cells or tumor cells without activation by an immune system cell or antibody Compare killer T cell …   From formal English to slang

  • natural killer cell — NK cell. A type of white blood cell that contains granules with enzymes that can kill tumor cells or microbial cells. Also called large granular lymphocyte and NK cell …   English dictionary of cancer terms

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