, Volume 35, Issue 3, pp 967–977 | Cite as

Pyranocoumarins Isolated from Peucedanum praeruptorum Dunn Suppress Lipopolysaccharide-Induced Inflammatory Response in Murine Macrophages Through Inhibition of NF-κB and STAT3 Activation

  • Peng-Jiu Yu
  • Hong Jin
  • Jun-Yan Zhang
  • Guang-Fa Wang
  • Jing-Rong Li
  • Zheng-Guang Zhu
  • Yuan-Xin Tian
  • Shao-Yu Wu
  • Wei Xu
  • Jia-Jie Zhang
  • Shu-Guang Wu


Praeruptorin C, D, and E (PC, PD, and PE) are three pyranocoumarins isolated from the dried root of Peucedanum praeruptorum Dunn of Umbelliferae. In the present study, we investigated the anti-inflammatory effect of these compounds in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophage cells. Pyranocoumarins significantly inhibited LPS-induced production of nitric oxide, interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α). The mRNA and protein expressions of inducible nitric oxide synthase, IL-6, and TNF-α were also suppressed by these compounds. Both PD and PE exhibited greater anti-inflammatory activities than PC. Further study showed that pyranocoumarins suppressed the cytoplasmic loss of inhibitor κB-α protein and inhibited the translocation of NF-κB from cytoplasm to nucleus. In addition, pyranocoumarins suppressed LPS-induced STAT3 tyrosine phosphorylation. Taken together, the results suggest that pyranocoumarins may exert anti-inflammatory effects in LPS-stimulated RAW 264.7 macrophages through the inhibition of NF-κB and STAT3 activation.


pyranocoumarin lipopolysaccharide nuclear factor-κB signal transducer and activator of transcription 3 nitric oxide tumor necrosis factor-α interleukin-6 macrophage 



This work was supported by grants from the Science and Technology Bureau of Guangzhou (2006Z1-E6021), the National Natural Science Foundation of China (no. 30901989), and the Natural Science Foundation of Guangdong Province (no. 9151063201000008)


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Peng-Jiu Yu
    • 1
  • Hong Jin
    • 1
  • Jun-Yan Zhang
    • 1
  • Guang-Fa Wang
    • 1
  • Jing-Rong Li
    • 1
  • Zheng-Guang Zhu
    • 1
  • Yuan-Xin Tian
    • 1
  • Shao-Yu Wu
    • 1
  • Wei Xu
    • 1
  • Jia-Jie Zhang
    • 1
  • Shu-Guang Wu
    • 1
  1. 1.School of Pharmaceutical SciencesSouthern Medical UniversityGuangzhouChina

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