Send to

Choose Destination
Semin Cancer Biol. 2002 Feb;12(1):57-61.

Tumor cell recognition by natural killer cells.

Author information

Laboratory of Immunogenetics, NIAID, NIH, Rockville, MD 20852, USA.


Natural killer (NK) cells contribute to the immune defense against cancer and viruses. Tumor cells and infected cells that downregulate the HLA class I antigen expression are targets for NK cell responses because NK cell activation is controlled by a repertoire of inhibitory receptors with different HLA class I specificities. The clonal distribution of these inhibitory receptors permits NK cell recognition of target cells that have lost expression of a single HLA-B or HLA-C allotype. Several activation receptors on NK cells have been identified that contribute to tumor cell recognition. One such receptor, NKG2D, is expressed by all NK cells and binds to inducible ligands on tumor cells.

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center