Effect of Corynoline Isolated from Corydalis bungeana Turcz on Lipopolysaccharides-Induced Sepsis In vivo and In vitro

  • Z He
  • P Chen
  • Z Peng
  • L Jin
Keywords: Corynoline, Corydalis bungeana, Sepsis, Lipopolysaccharides, TNF-á, IL-6

Abstract

Purpose: To investigate the protective effect of corynoline isolated from Corydalis bungeana Turcz on lipopolysaccharides (LPS)-induced sepsis, and determine the possible mechanism of anti-sepsis effect of the isolated corynoline.

Methods: Corynoline was extracted by column chromatography. LPS (100 ng/mL) was used to induce the release of TNF-α and IL-6 in RAW 264.7 cells, and the isolated corynoline was added. ELISA method was used to determine the levels of TNF-α and IL- 6. Furthermore, sepsis in mice was established by injection of LPS (2 mg/kg, i.v.), and the levels of TNF- α and IL-6 in plasma were determined by ELISA method. For survival rate test, LPS (15 mg/kg, i.v.) and heat-killed E. coli (1.0 ~1011 CFU/kg, i.v.) were used to establish sepsis in mice model, and the mice were observed in 7 days.

Results: The results indicate that corynoline significantly elevated the survival rate of septic mice induced by LPS and heat-killed E. coli, in a dose-dependent manner (p < 0.05). Corynoline decreased the release of TNF-α and IL-6 induced by LPS, in a dose-dependent manner (p < 0.05).

Conclusion: Treatment with corynoline significantly inhibits the mortality of LPS-induced septic mice, and the mechanism of action is probably related to the decrease of TNF-α and IL-6 release. Thus corynoline has the potential to be developed as an effective and safe drug for treating sepsis.

Keywords: Corynoline, Corydalis bungeana, Sepsis, Lipopolysaccharides, TNF-α, IL-6

Published
2014-02-13
Section
Articles

Journal Identifiers


eISSN: 1596-9827
print ISSN: 1596-5996