期刊
CHEMICO-BIOLOGICAL INTERACTIONS
卷 274, 期 -, 页码 107-115出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.cbi.2017.07.010
关键词
Kaempferol; IL-32; Macrophage differentiation; Thymic stromal lymphopoietin
资金
- National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2015R1D1A1A01056607]
Kaempferol possesses a wide range of therapeutic properties, including antioxidant, anti-inflammatory, and anticancer properties. The present study sought to evaluate the effects and possible pharmacological mechanisms of kaempferol on interleukin (IL)-32-induced monocyte-macrophage differentiation. In this study, we performed flow cytometry assay, immunocytochemical staining, quantitative real-time PCR, enzyme-linked immuno sorbent assay, caspase-1 assay, and Western blotting to observe the effects and underlying mechanisms of kaempferol using the human monocyte cell line THP-1. The flow cytometry, immunocytochemical staining, and real-time PCR results show that kaempferol attenuated IL-32-induced monocyte differentiation to product macrophage-like cells. Kaempferol decreased the production and mRNA expression of pro-inflammatory cytokines, in this case thymic stromal lymphopoietin (TSLP), IL-1 beta, tumor necrosis factor (TNF)-alpha, and IL-8. Furthermore, kaempferol inhibited the IL-32-induced activation of p38 and nuclear factor-kappa B in a dose-dependent manner in THP-1 cells. Kaempferol also ameliorated the lipopolysaccharide-induced production of the inflammatory mediators TSLP, IL-1 beta, TNF-alpha, IL-8, and nitric oxide of macrophage-like cells differentiated by IL-32. In brief, our findings may provide new mechanistic insights into the anti-inflammatory effects of kaempferol. (C) 2017 Elsevier B.V. All rights reserved.
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