Abstract Title:

Isoalantolactone inhibits LPS-induced inflammation via NF-κB inactivation in peritoneal macrophages and improves survival in sepsis.

Abstract Source:

Biomed Pharmacother. 2017 Jun ;90:598-607. Epub 2017 Apr 11. PMID: 28407580

Abstract Author(s):

Guodong He, Xu Zhang, Yanhua Chen, Jing Chen, Li Li, Yubo Xie

Article Affiliation:

Guodong He


Sepsis, a clinical syndrome occurring in patients following infection or injury, is a leading cause of mortality worldwide. It involves uncontrolled inflammatory response resulting in multi-organ failure and even death. Isoalantolactone (IAL), a sesquiterpene lactone, is known for its anti-cancer effects. Nevertheless, little is known about the anti-inflammatory effects of IAL, and the role of IAL in sepsis is unclear. In this study, we demonstrated that IAL decreased lipopolysaccharide (LPS)-mediated production of nitric oxide, PEGand cytokines (IL-6, TNF-α) in peritoneal macrophages and RAW 264.7 macrophages. Moreover, molecular mechanism studies indicated that IAL plays an anti-inflammatory role by inhibiting LPS-induced activation of NF-κB pathway in peritoneal macrophages. In vivo, IAL reduced the secretion of IL-6 and TNF-α in serum, and increased the survival rate of mice with LPS-induced sepsis. In addition, IAL attenuated the activation of NF-κB pathway in liver. Taken together, our data suggest that IAL may represent a potentially new drug candidate for the treatment of sepsis.

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