β-Carotene Suppresses Cytokine Production
Nishikawa, Yasufumi Tokushima University
Lew, Jung Hwan Tokushima University
Kido, Jun-ichi Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Nagata, Toshihiko Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Naruishi, Koji Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Porphyromonas gingivalis LPS
Periodontitis is associated with development of diabetes mellitus. Although lipopolysaccharide (LPS) of Porphyromonas gingivalis (Pg), a major pathogen of periodontitis, may lead the progression of diabetes complications, the precise mechanisms are unclear. We, therefore, investigated the effects of β-carotene on production of Pg LPS-induced inflammatory cytokines in human monocytes cultured high glucose (HG) condition. THP-1 cells were cultured under 5.5 mM or 25 mM glucose conditions, and cells were stimulated with Pg LPS. To investigate the productivity of TNF-α, IL-6 and MCP-1, cell supernatants were collected for ELISA. To examine the effects of NF-kB signals on cytokine production, Bay11-7082 was used. HG enhanced Pg LPS-induced production of TNF-α, IL-6 and MCP-1 via NF-kB signals in THP-1. β-carotene suppressed the enhancement of the Pg LPS-induced cytokine production in THP-1 via NF-κB inactivation. Our results suggest that β-carotene might be a potential anti-inflammatory nutrient for circulating Pg LPS-mediated cytokine production in diabetic patients with periodontitis.
Cell Biology International
International Federation for Cell Biology|Wiley
This is the peer reviewed version of the following article: Kajiura, Y. , Nishikawa, Y. , Lew, J. H., Kido, J. , Nagata, T. and Naruishi, K. (2018), β‐carotene suppresses Porphyromonas gingivalis lipopolysaccharide‐mediated cytokine production in THP‐1 monocytes cultured with high glucose condition. Cell Biol Int, 42: 105-111, which has been published in final form at https://doi.org/10.1002/cbin.10873. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
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