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  2. Natural killer cell - Wikipedia

    en.wikipedia.org/wiki/Natural_killer_cell

    Natural killer cells, also known as NK cells, are a type of cytotoxic lymphocyte critical to the innate immune system.They are a kind of large granular lymphocytes [1] [2] (LGL), and belong to the rapidly expanding family of known innate lymphoid cells (ILC) and represent 5–20% of all circulating lymphocytes in humans. [3]

  3. KLRC2 - Wikipedia

    en.wikipedia.org/wiki/KLRC2

    KLRC2 has been shown to interact and form dimers with CD94. [5] [6] The CD94/NKG2C heterodimer can bind to HLA-E [7] [8] and this binding leads to NK cells activation.During infection with human cytomegalovirus, peptides derived from the virus are presented on HLA-E and natural killer cells that express the CD94/NKG2C receptor can specifically recognise the virus peptides.

  4. Innate immune system - Wikipedia

    en.wikipedia.org/wiki/Innate_immune_system

    The innate leukocytes include: natural killer cells, mast cells, eosinophils, basophils; and the phagocytic cells include macrophages, neutrophils, and dendritic cells, and function within the immune system by identifying and eliminating pathogens that might cause infection. [2]

  5. Killer-cell immunoglobulin-like receptor - Wikipedia

    en.wikipedia.org/wiki/Killer-cell_immunoglobulin...

    Natural killer (NK) cells are a type of lymphocyte cell involved in the innate immune system's response to viral infection and tumor transformation of host cells. [20] [7] Like T cells, NK cells have many qualities characteristic of the adaptive immune system, including the production of “memory” cells that persist following encounter with antigens and the ability to create a secondary ...

  6. MHC class I polypeptide–related sequence A - Wikipedia

    en.wikipedia.org/wiki/MHC_class_I_polypeptide...

    MICA rather functions as a stress-induced ligand (as a danger signal) for integral membrane protein receptor NKG2D ("natural-killer group 2, member D"). MICA is broadly recognized by NK cells, γδ T cells, and CD8 + αβ T cells which carry NKG2D receptor on their cell surface and which are activated via this interaction. [7]

  7. Lymphocyte - Wikipedia

    en.wikipedia.org/wiki/Lymphocyte

    A lymphocyte is a type of white blood cell (leukocyte) in the immune system of most vertebrates. [1] Lymphocytes include T cells (for cell-mediated and cytotoxic adaptive immunity), B cells (for humoral, antibody-driven adaptive immunity), [2] [3] and innate lymphoid cells (ILCs; "innate T cell-like" cells involved in mucosal immunity and homeostasis), of which natural killer cells are an ...

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  9. Adaptive NK cell - Wikipedia

    en.wikipedia.org/wiki/Adaptive_NK_cell

    An adaptive natural killer (NK) cell or memory-like NK cell is a specialized natural killer cell that has the potential to form immunological memory. [ 1 ] [ 2 ] They can be distinguished from cytotoxic NK (cNK) cells by their receptor expression profile and epigenome. [ 3 ]