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Inflammation Research

, Volume 60, Issue 4, pp 357–366 | Cite as

Protective effect of Gö6976, a PKD inhibitor, on LPS/d-GalN-induced acute liver injury in mice

  • G. J. Duan
  • J. Zhu
  • C. Y. Xu
  • J. Y. Wan
  • L. Zhang
  • X. D. Ge
  • L. M. Liu
  • Y. S. Liu
Original Research Paper

Abstract

Objective

Protein kinase D (PKD) is a newly described serine/threonine protein kinase that plays a pivotal role in inflammatory response. In the present study, we examined the protective effect of Gö6976, a PKD inhibitor, on lipopolysaccharide (LPS) and d-galactosamine (d-GalN)-induced acute liver injury in mice.

Materials and methods

Mice were pretreated intraperitoneally with Gö6976 30 min before LPS/d-GalN administration . The mortality and degree of hepatic injury was subsequently assessed.

Results

The results indicated that LPS/d-GalN administration markedly induced hepatic PKD activation, lethality and liver injury, while pretreatment of the PKD inhibitor Gö6976 significantly inhibited LPS-induced PKD activation, improved the survival of LPS/d-GalN-administered mice and attenuated LPS/d-GalN-induced liver injury, as evidenced by reduced levels of serum aminotransferases as well as reduced histopathological changes. In addition, the protective effects of Gö6976 were paralleled by suppressed activation of mitogen-activated protein kinases (MAPKs), decreased expression of tumor necrosis factor-α (TNF-α) and adhesion molecules, and reduced apoptosis and myeloperoxidase (MPO) activity in liver.

Conclusions

Our experimental data indicated that Gö6976, a PKD inhibitor, could effectively prevent LPS/d-GalN-induced acute liver injury by inhibition of MAPKs activation to reduce TNF-α production. This suggests the potential pharmacological value of PKD inhibitors in the intervention of inflammation-based liver diseases.

Keywords

Protein kinase D Lipopolysaccharide d-galactosamine Inflammation Acute liver injury 

Notes

Acknowledgments

This work was supported by grants from the National Natural Science Foundation of China (No. 30772251, 30700289).

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Copyright information

© Springer Basel AG 2010

Authors and Affiliations

  • G. J. Duan
    • 1
  • J. Zhu
    • 1
  • C. Y. Xu
    • 1
  • J. Y. Wan
    • 2
  • L. Zhang
    • 3
  • X. D. Ge
    • 1
  • L. M. Liu
    • 1
  • Y. S. Liu
    • 1
  1. 1.Institute of Pathology, Southwest HospitalThird Military Medical UniversityChongqingChina
  2. 2.Department of PharmacologyChongqing Medical UniversityChongqingChina
  3. 3.Department of PathophysiologyChongqing Medical UniversityChongqingChina

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