PMID- 20630802 OWN - NLM STAT- MEDLINE DCOM- 20100920 LR - 20100806 IS - 1471-4981 (Electronic) IS - 1471-4906 (Linking) VI - 31 IP - 8 DP - 2010 Aug TI - Extending killer Ig-like receptor function: from HLA class I recognition to sensors of microbial products. PG - 289-94 LID - 10.1016/j.it.2010.05.007 [doi] AB - Killer Ig-like receptors (KIRs) are human natural killer (NK) receptors that recognize allotypic determinants of human leukocyte antigen (HLA) class I. Inhibitory KIRs discriminate normal cells from tumour or virus-infected cells that have lost or reduced HLA class I expression. Donor NK cell "alloeffector" responses are exploited in haploidentical haematopoietic stem cell transplantation to treat leukaemia. NK cells also express several toll-like receptors (TLRs) that increase NK cell cytotoxicity and cytokine release in response to ligands. Surprisingly, KIR3DL2 binds the TLR ligand CpG-oligodexynucleotides, and together, they are co-internalized and translocated to TLR9-rich early endosomes. This novel KIR-associated function offers clues to understanding the NK cell response to microbial infection, and extends the role played by KIRs in immune defence. CI - 2010 Elsevier Ltd. All rights reserved. FAU - Sivori, Simona AU - Sivori S AD - Department of Experimental Medicine and Center of Excellence for Biomedical Research, University of Genova, Italy. FAU - Falco, Michela AU - Falco M FAU - Moretta, Lorenzo AU - Moretta L FAU - Moretta, Alessandro AU - Moretta A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100712 PL - England TA - Trends Immunol JT - Trends in immunology JID - 100966032 RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Receptors, KIR) SB - IM MH - CpG Islands MH - Hematopoietic Stem Cell Transplantation MH - Histocompatibility Antigens Class I/*immunology MH - Humans MH - Killer Cells, Natural/immunology MH - Receptors, KIR/*immunology EDAT- 2010/07/16 06:00 MHDA- 2010/09/21 06:00 CRDT- 2010/07/16 06:00 PHST- 2010/03/30 00:00 [received] PHST- 2010/05/25 00:00 [revised] PHST- 2010/05/28 00:00 [accepted] PHST- 2010/07/16 06:00 [entrez] PHST- 2010/07/16 06:00 [pubmed] PHST- 2010/09/21 06:00 [medline] AID - S1471-4906(10)00076-1 [pii] AID - 10.1016/j.it.2010.05.007 [doi] PST - ppublish SO - Trends Immunol. 2010 Aug;31(8):289-94. doi: 10.1016/j.it.2010.05.007. Epub 2010 Jul 12.