کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2195976 | 1550879 | 2015 | 8 صفحه PDF | دانلود رایگان |
• Triptolide inhibited osteoclastogenesis and bone resorption, and RANKL-induced NF-kB activities.
• Triptolide attenuates titanium-induced osteolysis and osteoclast formation in a mouse calvarial model.
• Triptolide might have therapeutic potential for the treatment of bone lytic diseases caused by prosthetic wear particles.
The RANKL-induced NF-κB signaling pathway is required for osteoclast formation and function. By screening for compounds that inhibit RANKL-induced NF-κB activation using a luciferase reporter gene assay in RAW264.7 cells, we identified triptolide (PG490), as a candidate compound targeting osteoclast differentiation and osteoclast-mediated osteolysis. Triptolide (PG490) is an active compound of the medicinal herb Tripterygium wilfordii Hook F (TWHF) or Lei Gong Teng with known anti-inflammatory properties. We found that triptolide inhibited osteoclastogenesis and bone resorption, as well as RANKL-induced NF-қB activities as monitored by luciferase reporter gene assays and the nuclear translocation of p65. In vivo studies showed that triptolide attenuates titanium-induced osteolysis and osteoclast formation in a mouse calvarial model. Considering that drugs which protect against localized bone loss are critically needed for the effective treatment of particle-induced osteolysis, our data suggest that triptolide might have therapeutic potential for the treatment of bone lytic diseases caused by prosthetic wear particles.
Journal: Molecular and Cellular Endocrinology - Volume 399, 5 January 2015, Pages 346–353