Description
Initial identification of osteoactivin (OA)/glycoprotein non-melanoma clone B (gpnmb) was demonstrated in an osteopetrotic rat model, where OA expression was increased threefold in mutant bones, compared to normal. OA mRNA and protein expression increase during active bone regeneration post-fracture, and primary rat osteoblasts show increased OA expression during differentiation in vitro. To further examine OA/gpnmb as an osteoinductive agent, we characterized the skeletal phenotype of transgenic mouse overexpressing OA/gpnmb under the
Subject
Animals; Bone and Bones/*metabolism; Bone Density/physiology; Bone Remodeling/genetics/*physiology; Bone Resorption/metabolism; Cell Differentiation/genetics/*physiology; Eye Proteins/genetics/*metabolism; Membrane Glycoproteins/genetics/*metabolism; Mice; Osteoblasts/*cytology; Osteoclasts/*cytology; Osteogenesis/genetics; Protein-Serine-Threonine Kinases/metabolism; Receptor; Receptors; Transforming Growth Factor beta/metabolism; Transforming Growth Factor-beta Type I; Transgenic