Restoration of regenerative osteoblastogenesis in aged mice: modulation of TNF.

Restoration of regenerative osteoblastogenesis in aged mice: modulation of TNF.
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DOI:
10.1359/jbmr.090708
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发表时间:
2010-01
期刊:
Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research
影响因子:
--
通讯作者:
Lumpkin CK Jr
Lumpkin CK Jr
中科院分区:
其他
文献类型:
--
作者:
Wahl EC;Aronson J;Liu L;Fowlkes JL;Thrailkill KM;Bunn RC;Skinner RA;Miller MJ;Cockrell GE;Clark LM;Ou Y;Isales CM;Badger TM;Ronis MJ;Sims J;Lumpkin CK Jr

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Skeletal changes accompanying aging are associated with both increased risk of fractures and impaired fracture healing, which, in turn, is due to compromised bone regeneration potential. These changes are associated with increased serum levels of selected proinflammatory cytokines, e.g., tumor necrosis factor α (TNF-α). We have used a unique model of bone regeneration to demonstrate (1) that aged-related deficits in direct bone formation can be restored to young mice by treatment with TNF blockers and (2) that the cyclin-dependent kinase inhibitor p21 is a candidate for mediation of the osteoinhibitory effects of TNF. It has been hypothesized recently that TNF antagonists may represent novel anabolic agents, and we believe that the data presented here represent a successful test of this hypothesis. © 2010 American Society for Bone and Mineral Research
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