In vitro expanded human invariant natural killer T-cells promote functional activity of natural killer cells

Invariant natural killer T (iNKT) cells play a pivotal role in cancer immunity through trans-activation of effector cells via swift cytokine secretion. In mice, iNKT cell activation by alpha-galactosylceramide (alpha-GC) induces potent NK cell-mediated anti-tumour effects. Here we investigated wheth...

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Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 129(2008), 1 vom: 08. Okt., Seite 145-54
1. Verfasser: Moreno, María (VerfasserIn)
Weitere Verfasser: Molling, Johan W, von Mensdorff-Pouilly, Silvia, Verheijen, René H M, von Blomberg, B Mary E, van den Eertwegh, Alfons J M, Scheper, Rik J, Bontkes, Hetty J
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Galactosylceramides Interleukins alpha-galactosylceramide Interferon-gamma 82115-62-6 Interleukin-21 MKM3CA6LT1
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520 |a Invariant natural killer T (iNKT) cells play a pivotal role in cancer immunity through trans-activation of effector cells via swift cytokine secretion. In mice, iNKT cell activation by alpha-galactosylceramide (alpha-GC) induces potent NK cell-mediated anti-tumour effects. Here we investigated whether human iNKT cells could enhance NK cell functional activity in vitro. iNKT cell activation by alpha-GC treatment of peripheral blood mononuclear cells (PBMC) was not sufficient to enhance NK cell effector functions. However, addition of in vitro expanded iNKT cells to PBMC enhanced NK cell-mediated cytotoxicity in an alpha-GC-dependent manner. NK cell activation by iNKT cells was primarily mediated by soluble factors, and could be enhanced by the NK cell activating cytokine IL-21. These results suggest that adoptive transfer of ex vivo expanded iNKT cells will enhance NK cell function and is expected to enhance the efficacy of cancer immunotherapy, particularly in combination with IL-21 and alpha-GC 
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650 7 |a Interleukins  |2 NLM 
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700 1 |a Molling, Johan W  |e verfasserin  |4 aut 
700 1 |a von Mensdorff-Pouilly, Silvia  |e verfasserin  |4 aut 
700 1 |a Verheijen, René H M  |e verfasserin  |4 aut 
700 1 |a von Blomberg, B Mary E  |e verfasserin  |4 aut 
700 1 |a van den Eertwegh, Alfons J M  |e verfasserin  |4 aut 
700 1 |a Scheper, Rik J  |e verfasserin  |4 aut 
700 1 |a Bontkes, Hetty J  |e verfasserin  |4 aut 
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