Bamboo Culm Extract Attenuates Early Development of Systemic Inflammation in Pristane-Primed Lupus Mice

  • Received : 2010.10.13
  • Accepted : 2010.12.09
  • Published : 2010.12.31

Abstract

Systemic lupus erythematosus (SLE) is characterized by systemic inflammation through production of inflammatory mediators and signaling abnormalities between T- and B- cells, leading to autoantibody production and multiorgan injuries. This study was investigated whether bamboo culm extract (BC) attenuates development of lupus systemic inflammation in the early stage in pristane-induced lupus mice. The pristane-induced lupus mice were administrated with BC 0.5 ml/kg or PBS and healthy mice with PBS orally once a day for 14 days. Our results showed that BC remarkably attenuated levels of serum TNF-$\alpha$, IL-6, IL-10, IFN-$\gamma$, $PGE_2$, and VEGF, production of macrophages IL-6 and $PGE_2$ and expression of macrophages IL-6 and COX-2 mRNA in the presence or absence of LPS in pristane-induced lupus mice. Also, BC remarkably reduced expression of CD40L on the splenic T cells and CD80 on the splenic B cells and upregulated the reduced apoptosis of splenic T cells and CD4+ T cells in pristane-induced lupus mice. Therefore, these findings suggest that BC may attenuate early development of lupus systemic inflammation via downregulation of inflammatory mediators and amelioration of abnormal signaling between T cells and B cells.

Keywords

References

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