Dictionary » N » Natural killer T cell

Natural killer T cell



A type of T cell that does not express markers of either T or B-cell lineage, but may possess fc receptors for immunoglobulin g. It functions by killing target cell through antibody-dependent cell-mediated cytotoxicity or through perforin formation, killing cells without prior sensitization (hence, the name).


This type of cell attacks tumor cells and infected cells by releasing chemicals that are toxic to the cell, resulting to cell death of the target cell.

Abbreviation: NK cell


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