natural killer cell

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natural killer cell

[¦nach·rəl ′kil·ər ‚sel]
(histology)
A large, granular lymphocyte that can lyse a variety of target cells when it is activated by interferon. Abbreviated NK.
References in periodicals archive ?
Evidence that continued remission in patients treated for acute leukaemia is dependent upon autologous natural killer cells.
109) Senile bone marrow loses its ability to produce fresh naive immune cells, which are launched into the bloodstream to differentiate into mature naive T and natural killer cells.
It has been a longstanding observation that there is no match to the overwhelming T killer cell armada, which is triggered when a viral infection invades our body.
Her research has also suggested the natural killer cells play a part in preventing implantation of a fertilised egg, including IVF treatment.
Natural killer cell activity in families of patients with systemic lupus erythematosus: demonstration of a killing defect in patients.
In addition, depression has been linked to immune function deficits, such as decreased natural killer cell activity, according to a presentation at the annual meeting of the American College of Psychiatrists.
Dr Quenby said: 'The reason I'm excited is that there was a dramatic reduction in natural killer cells in nearly everybody.
The effect of interleukin-15 on the expression of killer-cell immunoglobulin-like receptors on peripheral natural killer cells in human.
Also see Evans 2002 (3): "Our findings provide the first evidence that depression may alter the function of killer lymphocytes in HIV-infected women and suggest that depression may decrease natural killer cell activity and lead to an increase in activated CD8 T lymphocytes and viral load" (quote from the abstract).
Natural killer cells are an essential part of the immune system, killing viruses and leukaemia cells, said Cornelia Ulrich, senior author.
Controls for nonspecific staining were monitored with isotype response that may involve natural killer cells.
It has shown superior ability in animal models to induce high levels of immune killer cells (CD8+) and antibodies.