PMID- 22984998 OWN - NLM STAT- MEDLINE DCOM- 20130402 LR - 20151119 IS - 1600-0722 (Electronic) IS - 0909-8836 (Linking) VI - 120 IP - 5 DP - 2012 Oct TI - Immunomodulation of dendritic cells differentiated in the presence of nicotine with lipopolysaccharide from Porphyromonas gingivalis. PG - 408-14 LID - 10.1111/j.1600-0722.2012.00992.x [doi] AB - Tobacco smoking is a significant risk factor for periodontal diseases. Nicotine, one of the most studied constituents in cigarette smoke, is thought to modify immune responses. Dendritic cells (DCs), which are key mediators between innate and adaptive immunity, stimulate naive T cells to differentiate to effector T-cell subsets that may be actively involved in the immunopathogenesis of periodontal diseases. In this study, we evaluated the effects of nicotine and lipopolysaccharide (LPS) from Porphyromonas gingivalis, alone and in combination, on the functions of human monocyte-derived DCs to elucidate the mechanism of tissue destruction of smoking-associated periodontal diseases. P. gingivalis LPS-stimulated DCs differentiated with nicotine (NiDCs) induced lower T-cell proliferation and human leukocyte antigen (HLA)-DR expression, but elevated expression of programmed cell death ligand 1. Additionally, NiDCs impaired interferon-gamma production but maintained interleukin (IL)-5 and IL-10 production in co-cultured T cells. Furthermore, NiDCs produced lower levels of proinflammatory cytokines compared with DCs differentiated in the absence of nicotine. Interestingly, NiDCs preferentially produced the T helper 2 (Th2)-type chemokines macrophage chemotactic protein-1 and macrophage-derived chemokine. These results suggest that the presence of nicotine during differentiation of DCs modulates the immunoregulatory functions of P. gingivalis LPS-stimulated DCs. CI - (c) 2012 Eur J Oral Sci. FAU - Yanagita, Manabu AU - Yanagita M AD - Department of Periodontology, Division of Oral Biology and Disease Control, Osaka University Graduate School of Dentistry, Osaka, Japan. FAU - Mori, Kenta AU - Mori K FAU - Kobayashi, Ryohei AU - Kobayashi R FAU - Kojima, Yuko AU - Kojima Y FAU - Kubota, Mikiko AU - Kubota M FAU - Miki, Koji AU - Miki K FAU - Yamada, Satoru AU - Yamada S FAU - Kitamura, Masahiro AU - Kitamura M FAU - Murakami, Shinya AU - Murakami S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120828 PL - England TA - Eur J Oral Sci JT - European journal of oral sciences JID - 9504563 RN - 0 (Cytokines) RN - 0 (Lipopolysaccharides) RN - 6M3C89ZY6R (Nicotine) SB - IM MH - Analysis of Variance MH - Cell Differentiation/drug effects/immunology MH - Cell Proliferation/drug effects MH - Cells, Cultured MH - Cytokines/*drug effects/metabolism MH - Dendritic Cells/*drug effects/immunology MH - Flow Cytometry MH - Humans MH - Lipopolysaccharides/*immunology/metabolism MH - Lymphocyte Activation/drug effects MH - Nicotine/metabolism/*pharmacology MH - Periodontal Diseases/*etiology/immunology MH - Porphyromonas gingivalis/*immunology/metabolism MH - T-Lymphocyte Subsets/*drug effects/metabolism EDAT- 2012/09/19 06:00 MHDA- 2013/04/03 06:00 CRDT- 2012/09/19 06:00 PHST- 2012/07/01 00:00 [accepted] PHST- 2012/09/19 06:00 [entrez] PHST- 2012/09/19 06:00 [pubmed] PHST- 2013/04/03 06:00 [medline] AID - 10.1111/j.1600-0722.2012.00992.x [doi] PST - ppublish SO - Eur J Oral Sci. 2012 Oct;120(5):408-14. doi: 10.1111/j.1600-0722.2012.00992.x. Epub 2012 Aug 28.