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Dendrobium moniliforme stem extract inhibits lipoteichoic acid-induced inflammatory responses by upregulation of heme oxygenase-1.
In this study, we investigated anti-inflammatory effects of the aqueous extract of D. moniliforme stems (DM) in response to lipoteichoic acid (LTA), a major constituent of the cell wall of Gram-positive bacteria. DM inhibited LTA-induced expression of a pro-inflammatory mediator inducible nitric oxide synthase (iNOS) in the murine macrophages. And DM induced expression of heme oxygenase-1 (HO-1) at the transcriptional level. Conversely, the knockdown of HO-1 expression by siRNA markedly reversed the inhibitory effects of DM on LTA-induced iNOS expression. We also demonstrated that nuclear translocation of Nrf2 was increase...
Source: Journal of Microbiology and Biotechnology - July 31, 2018 Category: Biotechnology Authors: Lee YJ, Kim JH, Kim Y Tags: J Microbiol Biotechnol Source Type: research