PMID- 15972660 OWN - NLM STAT- MEDLINE DCOM- 20050831 LR - 20190516 IS - 0022-1767 (Print) IS - 0022-1767 (Linking) VI - 175 IP - 1 DP - 2005 Jul 1 TI - TLR-dependent activation stimuli associated with Th1 responses confer NK cell stimulatory capacity to mouse dendritic cells. PG - 286-92 AB - Dendritic cells (DCs) have an important role in the activation of NK cells that exert direct antitumor and antimicrobial effects and can influence the development of adaptive T cell responses. DCs acquire NK cell stimulatory capacity after exposure to various stimuli. In this study we investigated the nature of the stimuli that confer to DCs the NK cell-activating capacity. After exposure of DCs to TLR-dependent and -independent microbial stimuli and to nonmicrobial stimuli, we evaluated the ability of activated DCs to elicit IFN-gamma production from NK cells in vitro and to promote NK cell activation in vivo. We show in this study that only TLR-dependent microbial stimuli typically associated with Th1 responses confer to DCs the ability to activate NK cells, whereas stimuli associated with Th2 responses do not have this property. FAU - Zanoni, Ivan AU - Zanoni I AD - Department of Biotechnology and Bioscience, University of Milano-Bicocca, Milan, Italy. FAU - Foti, Maria AU - Foti M FAU - Ricciardi-Castagnoli, Paola AU - Ricciardi-Castagnoli P FAU - Granucci, Francesca AU - Granucci F LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Immunol JT - Journal of immunology (Baltimore, Md. : 1950) JID - 2985117R RN - 0 (Lipopolysaccharides) RN - 0 (Lipoproteins) RN - 0 (Membrane Glycoproteins) RN - 0 (Receptors, Cell Surface) RN - 0 (Toll-Like Receptors) RN - 82115-62-6 (Interferon-gamma) RN - 87420-41-5 (2,3-bis(palmitoyloxy)-2-propyl-1-palmitoylcysteine) RN - K848JZ4886 (Cysteine) SB - IM MH - Animals MH - Coculture Techniques MH - CpG Islands/immunology MH - Cysteine/analogs & derivatives/pharmacology MH - Dendritic Cells/drug effects/*immunology MH - Interferon-gamma/biosynthesis MH - Killer Cells, Natural/*immunology MH - Leishmania mexicana/immunology MH - Lipopolysaccharides/pharmacology MH - Lipoproteins/pharmacology MH - Lymphocyte Activation MH - Membrane Glycoproteins/*metabolism MH - Mice MH - Mice, Inbred BALB C MH - Mice, Inbred C57BL MH - Mycobacterium bovis/immunology MH - Receptors, Cell Surface/*metabolism MH - Th1 Cells/*immunology MH - Toll-Like Receptors EDAT- 2005/06/24 09:00 MHDA- 2005/09/01 09:00 CRDT- 2005/06/24 09:00 PHST- 2005/06/24 09:00 [pubmed] PHST- 2005/09/01 09:00 [medline] PHST- 2005/06/24 09:00 [entrez] AID - 175/1/286 [pii] AID - 10.4049/jimmunol.175.1.286 [doi] PST - ppublish SO - J Immunol. 2005 Jul 1;175(1):286-92. doi: 10.4049/jimmunol.175.1.286.