Description
We previously reported on the importance of osteoactivin (OA/Gpnmb) in osteogenesis. In this study, we examined the role of OA in osteoclastogenesis, using mice with a nonsense mutation in the Gpnmb gene (D2J) and wild-type controls (D2J/Gpnmb(+)). In these D2J mice, micro-computed tomography and histomorphometric analyses revealed increased cortical thickness, whereas total porosity and eroded surface were significantly reduced in D2J mice compared with wild-type controls, and these results were corroborated by lower serum levels of
Subject
*Mutation; Akt; Animals; bone; bone marrow; Bone Remodeling; Cell Differentiation/*physiology; Cell Survival/*physiology; Eye Proteins/*genetics; Inbred DBA; MAP kinases (MAPKs); Membrane Glycoproteins/*genetics; Mice; osteoactivin; osteoclast; Osteoclasts/*cytology; osteopetrosis; RANK Ligand/metabolism/*physiology; Signal Transduction; X-Ray Microtomography