Recent studies have implicated a possible role for NK cells in regulating dendritic cells (DC) in vitro. In the present study, we demonstrate that immature DC are rapidly eliminated by NK cells in vivo via a pathway dependent on the TNF-related apoptosis-inducing ligand (TRAIL). Elimination of NK cells and/or neutralization of TRAIL function during immunization with immature DC loaded with nonself or tumor Ags significantly enhanced T cell responses to these Ags and Ag-specific tumor immunity. These data suggested that NK cell TRAIL might regulate responses to vaccination by controlling the survival of Ag-loaded DC.
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LLC Tecon Med Devices, Dept Dev & Res Immunol, Moscow 123298, RussiaLLC Tecon Med Devices, Dept Dev & Res Immunol, Moscow 123298, Russia
Abakushina, Elena V.
Popova, Liubov I.
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LLC Tecon Med Devices, Dept Dev & Res Immunol, Moscow 123298, RussiaLLC Tecon Med Devices, Dept Dev & Res Immunol, Moscow 123298, Russia
Popova, Liubov I.
Zamyatnin, Andrey A., Jr.
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Lomonosov Moscow State Univ, Belozersky Inst Physicochem Biol, Moscow 119992, Russia
Sechenov First Moscow State Med Univ, Inst Mol Med, Moscow 119991, Russia
Sirius Univ Sci & Technol, Dept Biotechnol, 1 Olymp Ave, Soci 354340, RussiaLLC Tecon Med Devices, Dept Dev & Res Immunol, Moscow 123298, Russia
Zamyatnin, Andrey A., Jr.
Werner, Jens
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Ludwig Maximilians Univ Munchen, Dept Gen Visceral & Transplant Surg, D-81377 Munich, Germany
German Canc Consortium DKTK, Partner Site Munich, D-81377 Munich, Germany
Bavarian Canc Res Ctr BZKF, D-91054 Erlangen, GermanyLLC Tecon Med Devices, Dept Dev & Res Immunol, Moscow 123298, Russia
Werner, Jens
Mikhailovsky, Nikolay V.
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LLC Tecon Med Devices, Dept Dev & Res Immunol, Moscow 123298, RussiaLLC Tecon Med Devices, Dept Dev & Res Immunol, Moscow 123298, Russia
Mikhailovsky, Nikolay V.
Bazhin, Alexandr V.
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Ludwig Maximilians Univ Munchen, Dept Gen Visceral & Transplant Surg, D-81377 Munich, Germany
German Canc Consortium DKTK, Partner Site Munich, D-81377 Munich, GermanyLLC Tecon Med Devices, Dept Dev & Res Immunol, Moscow 123298, Russia