Lipopolysaccharide and Prostaglandin $E_2$ regulates the gene expression of IL-1$\beta$ in mouse osteoblast cells

  • Noh, Sang-Ho (Department of Orthodondritics, Kyung-Hee University College of Dental Medicine) ;
  • Park, Young-Gukk (Department of Orthodondritics, Kyung-Hee University College of Dental Medicine) ;
  • Kim, Cheorl-Ho (Department of Biochemistry and Molecular Biology, College of Oriental Medicine)
  • Published : 2000.10.01

Abstract

Prostaglandin $E_2$(PG$E_2$) is an abundant eicosanoid in bone that has been implicated in a number of pathological states associated with bone loss, and is also known to stimulate matric metalloproteinase-1 systhesis and secretion in rat and human osteoblast cells, although the intracellular reaction remain unclear. Interleukin-1$\beta$ (IL-1$\beta$) is a cytokine that plays a critical role in bone remodelling and appears to act as a downstream effector of most bone-resorbing agents. However, it is still interesting to examine whether PG$E_2$ regulates IL-1$\beta$ expression by mouse osteoblasts or not. Here we demonstrate that PG$E_2$is a potent inducer of IL-1$\beta$ production by fetal osteoblasts.

Keywords

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