NK cell-mediated lysis of autologous HCMV-infected skin fibroblasts is highly variable among NK cell clones and polyclonal NK cell lines

Lysis of human cytomegalovirus (HCMV)-infected fibroblasts by autologous natural killer (NK) cells was examined in vitro. For NK cell clones, receptor expression was determined at the level of mRNA and cell-surface protein and compared to the lysis of HCMV AD169 strain-infected fibroblasts in which...

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Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 105(2002), 2 vom: 01. Nov., Seite 126-40
1. Verfasser: Carr, William H (VerfasserIn)
Weitere Verfasser: Little, Ann-Margaret, Mocarski, Edward, Parham, Peter
Format: Aufsatz
Sprache:English
Veröffentlicht: 2002
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. HLA Antigens Histocompatibility Antigens Class I Receptors, Immunologic Receptors, KIR
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245 1 0 |a NK cell-mediated lysis of autologous HCMV-infected skin fibroblasts is highly variable among NK cell clones and polyclonal NK cell lines 
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520 |a Lysis of human cytomegalovirus (HCMV)-infected fibroblasts by autologous natural killer (NK) cells was examined in vitro. For NK cell clones, receptor expression was determined at the level of mRNA and cell-surface protein and compared to the lysis of HCMV AD169 strain-infected fibroblasts in which HLA class I was >70% downregulated. The clones ranged broadly in their ability to lyse AD169-infected fibroblasts, correlating neither with the expression of inhibitory KIR, leukocyte inhibitory receptor-1, or CD94:NKG2A receptors nor with the number of different inhibitory KIR expressed per clone. Some lines of polyclonal NK cells preferentially lysed AD169-infected cells and similarly lysed fibroblasts infected with mutant virus RV798, which lacks the genes for downregulating HLA class I. These results demonstrate that NK cell lysis of HCMV-infected autologous fibroblasts is more complex than a simple missing-self mechanism involving downregulation of HLA class I and failure to engage inhibitory self-specific KIR 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Research Support, U.S. Gov't, P.H.S. 
650 7 |a HLA Antigens  |2 NLM 
650 7 |a Histocompatibility Antigens Class I  |2 NLM 
650 7 |a Receptors, Immunologic  |2 NLM 
650 7 |a Receptors, KIR  |2 NLM 
700 1 |a Little, Ann-Margaret  |e verfasserin  |4 aut 
700 1 |a Mocarski, Edward  |e verfasserin  |4 aut 
700 1 |a Parham, Peter  |e verfasserin  |4 aut 
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