Shikonin inhibits inflammatory cytokine production
Shindo, Satoru Tokushima University
Hosokawa, Yoshitaka Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Hosokawa, Ikuko Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Ozaki, Kazumi Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
periodontal ligament cells
Shikonin, which is derived from Lithospermum erythrorhizon, a herb used in traditional medicine, has long been considered to be a useful treatment for various diseases in traditional oriental medicine. Shikonin has recently been reported to have several pharmacological properties, e.g., it has anti-microbial, anti-tumor, and anti-inflammatory effects. The aim of this study was to examine whether shikonin is able to influence the production of interleukin (IL)-6, IL-8, and/or chemokine C-C motif ligand (CCL)20, which contribute to the pathogenesis of periodontal disease, in human periodontal ligament cells (HPDLC). The production levels of IL-6, IL-8, and CCL20 in HPDLC were determined using an ELISA. Western blot analysis was used to detect nuclear factor kappa B (NF-κB) pathway activation in HPDLC. Shikonin prevented IL-1β- or tumor necrosis factor (TNF)-α-mediated IL-6, IL-8, and CCL20 production in HPDLC. Moreover, we found that shikonin suppressed the phosphorylation and degradation of inhibitor of kappa B-alpha (IκB-α) in IL-1β- or TNF-α-stimulated HPDLC. These findings suggest that shikonin could have direct beneficial effects against periodontal disease by reducing IL-6, IL-8, and CCL20 production in periodontal lesions.
This is a post-peer-review, pre-copyedit version of an article published in Inflammation.
The final authenticated version is available online at: https://doi.org/10.1007/s10753-016-0344-0
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