YAKHAK HOEJI (약학회지)

The Pharmaceutical Society of Korea (대한약학회)
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The Effect of PDE4 Inhibitor on LPS-Induced Osteoclastogenesis

LPS의 파골세포 분화 유도에 미치는 PDE4 저해제의 증강효과

  • No, A-Long-Sae-Mi (College of Pharmacy, Sookmyung Women's University) ;
  • Chen, Ling (College of Pharmacy, Sookmyung Women's University) ;
  • Yim, Mi-Jung (College of Pharmacy, Sookmyung Women's University)
  • Published : 2008.02.29
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Abstract

To determine the regulatory roles of PDE4 inhibitor on LPS-induced osteoclastogenesis, we investigated the effect of a PDE4 inhibitor on osteoclast formation in the presence of LPS. A specific PDE4 inhibitor, rolipram, increased LPS-induced osteoclast formation in cocultures. To verify that whether rolipram acts indirectly on osteoblasts, we investigated the TRANCE and COX-2 mRNA expression levels in osteoblasts. Treatment of rolipram increased the expression of TRANCE and COX-2 mRNA in osteoblasts stimulated by LPS. On the contrary, rolipram did not augment the number of osteoclasts differentiated from bone marrow cells by LPS. In conclusion, the stimulation of LPS-induced osteoclast formation by the PDE4 inhibitor are attributable to its indirect effect on osteoblasts, not to their direct effect on bone marrow-derived osteoclast precursors.

Keywords

References

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