lymphokine

lymphokine
Hormonelike peptide, released by activated lymphocytes, that mediates immune response; a cytokine obtained from lymphocytes. [lymphocyte + G. kineo, to set in motion]

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lym·pho·kine 'lim(p)-fə-.kīn n any of various substances (as an interleukin) of low molecular weight that are not antibodies, are secreted by T cells in response to stimulation by antigens, and have a role (as the activation of macrophages or the enhancement or inhibition of antibody production) in cell-mediated immunity

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n.
a substance produced by lymphocytes that has effects on other cells involved in the immune system (see cytokines). An example is interleukin 2 (IL-2).

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lym·pho·kine (limґfo-kīn) [lympho- + Gr. kinēsis movement] a soluble cytokine that mediates immune responses; it is not an antibody or a complement component and is released by sensitized lymphocytes on contact with antigen. Cf. monokine.

Medical dictionary. 2011.

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Look at other dictionaries:

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  • Lymphokine — sind eine Sammelbezeichnung für spezielle Zytokine. Die ursprüngliche Definition von Dumonde (1982) bezeichnete alle nicht Antikörper Proteine, die von aktivierten Lymphozyten produziert werden und als interzellulare Botenstoffe der Immunantwort… …   Deutsch Wikipedia

  • Lymphokine —   [zu griechisch kineĩn »bewegen«] Plural, Immunologie: von Lymphozyten, v. a. T Lymphozyten, gebildete Zytokine …   Universal-Lexikon

  • Lymphokine — Lymphokine, von T Helfer Zellen und anderen Immunzellen sezernierte Glykoproteine, z.B. ⇒ Interleukine und ⇒ Interferone, die Abwehrvorgänge anregen …   Deutsch wörterbuch der biologie

  • lymphokine — [lim′fō kīn΄] n. [ LYMPHO + kine < Gr kinein, to move] any of various soluble proteins, as interferon, that are secreted by T cells interacting with an antigen and that help fight infection …   English World dictionary

  • Lymphokine — Lymphokines are a subset of cytokines that are produced by a type of immune cell known as a lymphocyte. They are typically produced by T cells to direct the immune system response by signaling between its cells. Lymphokines have many roles,… …   Wikipedia

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  • Lymphokine-activated killer cell — In cell biology, a lymphokine activated killer cell (also known as a LAK cell) is a white blood cell that has been stimulated to kill tumour cells. [cite web | url=http://www.cancer.gov/Templates/db alpha.aspx?CdrID=45287 | title=Definition of… …   Wikipedia

  • lymphokine — noun Etymology: lymph + kine, from Greek kinein to move about more at kinesis Date: 1969 any of various substances (as interleukin 2) of low molecular weight that are not antibodies, are secreted by T cells in response to stimulation by antigens …   New Collegiate Dictionary

  • lymphokine — (lim fo kin) A biologically active glycoprotein (e.g., IL 1) secreted by activated lymphocytes, especially sensitized T cells. It acts as an intercellular mediator of the immune response and transmits growth, differentiation, and behavioral… …   Dictionary of microbiology

  • lymphokine — Lackie Substance produced by a leucocyte that acts upon another cell. Examples are interleukins, interferon g, lymphotoxin (tumour necrosis factor b ), granulocyte monocyte colony stimulating factor (GM CSF). The term is becoming less common and… …   Dictionary of molecular biology

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