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Structurally modified glycyrrhetinic acid derivatives as anti-inflammatory agents
Ming Bian1, Dong Zhen2, Qing-Kun Shen3
1College of Pharmacy, Yanbian University, Yanji City, Jilin, China; Institute of Pharmaceutical Chemistry and Pharmacology, Inner Mongolia University for Nationalities, Inner Mongolia Autonomous Region, Tongliao, China.
Abstract:
With the aim of finding new anti-inflammatory drugs, a series of new Glycyrrhetinic acid derivatives (1-34) have been designed and synthesized by structural modification, and their anti-inflammatory activities in vitro have been evaluated. The anti-inflammatory activities assay demonstrated that compound 5b suppressed the expression of pro-inflammatory cytokines including IL-6, TNF-α and NO, it also suppressed the expression of iNOS and COX-2 in LPS-induced RAW264.7 cells in a dose-dependent manner. Additionally, western blot results indicated that the suppressing effect of compound 5b on pro-inflammatory cytokines were correlated with the suppression of NF-κB and MAPK signaling pathways. The results attained in this study indicated that compound 5b had the potential to be developed into an anti-inflammation agent and it may be applied to the prevention and treatment of inflammatory diseases.
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