Cell Function
lymphocyte activation
lym·pho·cyte ac·tiva·tion [ lim-fuh-sahyt ak-tuh-vey-shun ]
Subclass of:
Immunologic Tests; Cellular Immunity
Definitions related to lymphocyte activation:
  • A change in morphology and behavior of a lymphocyte resulting from exposure to a specific antigen, mitogen, cytokine, chemokine, cellular ligand, or soluble factor.
    Gene Ontology Dictionary
    Gene Ontology Consortium, 2021
  • Morphologic alteration of small B LYMPHOCYTES or T LYMPHOCYTES in culture into large blast-like cells able to synthesize DNA and RNA and to divide mitotically. It is induced by INTERLEUKINS; MITOGENS such as PHYTOHEMAGGLUTININS, and by specific ANTIGENS. It may also occur in vivo as in GRAFT REJECTION.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • (lymphocyte activation process) Lymphocyte Activation involves stimulation of the production and activity of lymphocytes. Stimulation increases the immune response to invading substances.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.