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Effect of sesame antioxidants on LPS-induced NO production by BV2 microglial cells
Rolis Chien-Wei Hou1, Huan-Lian Chen, Jason T C Tzen
1Graduate Institute of Biotechnology, National Chung Hsing University, Taiwan, RO China. kcjengmr@vghtc.gov.tw
Abstract:
Sesame antioxidants have been shown to inhibit lipid peroxidation and regulate cytokine production. In this study, we focused on the effect of sesamin and sesamolin, on nitric oxide (NO) induction by lipopolysaccharides (LPS) in the murine microglial cell line BV-2 and rat primary microglia. The results showed that sesamin and sesamolin significantly inhibited NO production, iNOS mRNA and protein expression in LPS-stimulated BV-2 cells. Sesamin or sesamolin significantly reduced LPS-activated p38 MAPK of BV-2 cells. Furthermore, SB203580, a specific inhibitor of p38 MAP kinase, dose-dependently inhibited NO production in LPS-stimulated BV-2 cells. Taken together, the inhibition of NO production might be due to the reduction of LPS-induced p38 MAPK signal pathway by sesamin and sesamolin.
