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killer cell

   Also found in: Medical, Wikipedia 0.01 sec.
killer cell
n.
Any of various large differentiated T cells that recognize and lyse target cells bearing a specific foreign antigen, usually by infection with a virus, and that also function in defense against cancer cells. Also called cytotoxic T cell, killer T cell.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.killer cell - T cell with CD8 receptor that recognizes antigens on the surface of a virus-infected cell and binds to the infected cell and kill it
T cell, T lymphocyte - a small lymphocyte developed in the thymus; it orchestrates the immune system's response to infected or malignant cells

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8,9) It is possible that cigarette smoking predisposes patients to mucosal HSV infection by suppressing the host defenses, such as natural killer cell activity, that are required to control HSV.
The three partners will jointly undertake through March 2006 clinical studies of lymphokine-activated killer cell therapy using gamma-delta T cells.
In the test tube, killer cells from the obese animals were only 50 percent as effective as were cells from the lean mice.
 
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