Osteoprotegerin ligand is a cytokine that regulates osteoclast differentiation and activation

被引:4557
作者
Lacey, DL
Timms, E
Tan, HL
Kelley, MJ
Dunstan, CR
Burgess, T
Elliott, R
Colombero, A
Elliott, G
Scully, S
Hsu, H
Sullivan, J
Hawkins, N
Davy, E
Capparelli, C
Eli, A
Qian, YX
Kaufman, S
Sarosi, I
Shalhoub, V
Senaldi, G
Guo, J
Delaney, J
Boyle, WJ
机构
[1] Amgen Inc, Dept Cell Biol, Thousand Oaks, CA 91320 USA
[2] Amgen Inc, Dept Pathol, Thousand Oaks, CA 91320 USA
[3] Amgen Inc, Dept Prot Chem, Thousand Oaks, CA 91320 USA
[4] Amgen Inc, Dept Mammalian Cell Mol Biol, Thousand Oaks, CA 91320 USA
[5] Amgen Inc, Dept Bacterial Express, Thousand Oaks, CA 91320 USA
[6] Amgen Inc, Dept Proc Sci, Thousand Oaks, CA 91320 USA
关键词
D O I
10.1016/S0092-8674(00)81569-X
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The ligand for osteoprotegerin has been identified, and it is a TNF-related cytokine that replaces the requirement for stromal cells, vitamin D3, and glucocorticoids in the coculture model of in vitro osteoclastogenesis. OPG ligand (OPGL) binds to a unique hematopoeitic progenitor cell that is committed to the osteoclast lineage and stimulates the rapid induction of genes that typify osteoclast development. OPGL directly activates isolated mature osteoclasts in vitro, and shortterm administration into normal adult mice results in osteoclast activation associated with systemic hypercalcemia. These data suggest that OPGL is an osteoclast differentiation and activation factor. The effects of OPGL are blocked in vitro and in vivo by OPG, suggesting that OPGL and OPG are key extracellular regulators of osteoclast development.
引用
收藏
页码:165 / 176
页数:12
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