Activation of Toll-like receptor 2 on human dendritic cells triggers induction of IL-12, but not IL-10

S. Thoma-Uszynski, S. M. Kiertscher, M. T. Ochoa, D. A. Bouis, M. V. Norgard, K. Miyake, P. J. Godowski, M. D. Roth, R. L. Modlin

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Abstract

Mammalian Toll-like receptors (TLRs) are required for cell activation by bacterial lipoproteins (bLP) and LPS. Stimulation of monocytes with bLP and LPS results in a TLR-dependent induction of immunomodalatory genes leading to the production of pro-inflammatory cytokines. In this paper, we compared the expression and response of TLRs on monocytes and dendritic cells (DC). TLR2, but not TLR4, was detected on peripheral blood monocytes and DC, in lymphoid tissue CD1a+ DC as well as on in vitro monocyte-derived DC. Upon stimulation with bLP or LPS, monocytes produced IL-12 and IL-10 at similar levels, whereas monocyte-derived DC produced comparable levels of IL-12, but little IL-10. Greater than 90% of the bLP-induced production of IL-12 was blocked by anti-TLR2 mAb. Thus, DC express TLR2 and activation of this receptor by bLP provides an innate mechanism by which microbial pathogens preferentially activate cell-mediated immunity.

Original languageEnglish (US)
Pages (from-to)3804-3810
Number of pages7
JournalJournal of Immunology
Volume165
Issue number7
StatePublished - Oct 1 2000

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Interleukin-12
Interleukin-10
Dendritic Cells
Monocytes
Lipoproteins
Toll-Like Receptors
Toll-Like Receptor 2
Lymphoid Tissue
Cellular Immunity
human TLR2 protein
Blood Cells
Cytokines
Genes

ASJC Scopus subject areas

  • Immunology

Cite this

Thoma-Uszynski, S., Kiertscher, S. M., Ochoa, M. T., Bouis, D. A., Norgard, M. V., Miyake, K., ... Modlin, R. L. (2000). Activation of Toll-like receptor 2 on human dendritic cells triggers induction of IL-12, but not IL-10. Journal of Immunology, 165(7), 3804-3810.

Activation of Toll-like receptor 2 on human dendritic cells triggers induction of IL-12, but not IL-10. / Thoma-Uszynski, S.; Kiertscher, S. M.; Ochoa, M. T.; Bouis, D. A.; Norgard, M. V.; Miyake, K.; Godowski, P. J.; Roth, M. D.; Modlin, R. L.

In: Journal of Immunology, Vol. 165, No. 7, 01.10.2000, p. 3804-3810.

Research output: Contribution to journalArticle

Thoma-Uszynski, S, Kiertscher, SM, Ochoa, MT, Bouis, DA, Norgard, MV, Miyake, K, Godowski, PJ, Roth, MD & Modlin, RL 2000, 'Activation of Toll-like receptor 2 on human dendritic cells triggers induction of IL-12, but not IL-10', Journal of Immunology, vol. 165, no. 7, pp. 3804-3810.
Thoma-Uszynski S, Kiertscher SM, Ochoa MT, Bouis DA, Norgard MV, Miyake K et al. Activation of Toll-like receptor 2 on human dendritic cells triggers induction of IL-12, but not IL-10. Journal of Immunology. 2000 Oct 1;165(7):3804-3810.
Thoma-Uszynski, S. ; Kiertscher, S. M. ; Ochoa, M. T. ; Bouis, D. A. ; Norgard, M. V. ; Miyake, K. ; Godowski, P. J. ; Roth, M. D. ; Modlin, R. L. / Activation of Toll-like receptor 2 on human dendritic cells triggers induction of IL-12, but not IL-10. In: Journal of Immunology. 2000 ; Vol. 165, No. 7. pp. 3804-3810.
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