Journal
JAPANESE JOURNAL OF INFECTIOUS DISEASES
Volume 69, Issue 6, Pages 482-487Publisher
NATL INST INFECTIOUS DISEASES
DOI: 10.7883/yoken.JJID.2015.396
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Funding
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
- National Natural Science Foundation of China [81271129, 81570968]
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Vitamin D is known to be closely associated with periodontitis; however, its exact mechanisms remain to be clarified. The present study aimed to investigate the influence of 1,25-dihydroxyvitamin D-3 (1,25(OH)(2)D-3) on Porphyromonas gingivalis (Pg)-stimulated cytokine production and the involved signaling pathways in macrophages. The main observation was that 1,25(OH)(2)D-3 inhibited Pg-induced interleukin (IL)-6 cytokine expression but up-regulated the expression of antiinflammatory cytokine IL-10. Further analyses showed that 1,25(OH)(2)D-3 decreased p38 mitogen-activated protein kinase (MAPK) and extracellular signal regulated kinase (ERK)1/2 phosphorylation. Inhibited phosphorylation of p38 MAPK and ERK1/2 was associated with decreased level of IL-6 expression, but was not related to increased level of IL-10 expression in macrophages stimulated with Pg. These results suggest that 1,25(OH)(2)D-3 might exert its anti-inflammatory effects on Pg-stimulated macrophages partly through its inhibitory effect on the p38 MAPK and ERK1/2 signaling pathway.
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