Immunomodulation of dendritic cells differentiated in the presence of nicotine with lipopolysaccharide from Porphyromonas gingivalis

Manabu Yanagita, Kenta Mori, Ryohei Kobayashi, Yuko Kojima, Mikiko Kubota, Koji Miki, Satoru Yamada, Masahiro Kitamura, Shinya Murakami

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

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-γ 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.

Original languageEnglish
Pages (from-to)408-414
Number of pages7
JournalEuropean Journal of Oral Sciences
Volume120
Issue number5
DOIs
Publication statusPublished - 2012 Oct 1
Externally publishedYes

Keywords

  • Dendritic cells
  • Lipopolysaccharide
  • Nicotine
  • Periodontitis
  • Porphyromonas gingivalis

ASJC Scopus subject areas

  • Dentistry(all)

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