2010
Osteoclasts Lacking Rac2 Have Defective Chemotaxis and Resorptive Activity
Itokowa T, Zhu ML, Troiano N, Bian J, Kawano T, Insogna K. Osteoclasts Lacking Rac2 Have Defective Chemotaxis and Resorptive Activity. Calcified Tissue International 2010, 88: 75-86. PMID: 21110188, PMCID: PMC3155765, DOI: 10.1007/s00223-010-9435-3.Peer-Reviewed Original ResearchConceptsTrabecular bone massBone massMature osteoclastsFemoral cortical thicknessTotal bone areaNumber of osteoclastsWild-type miceNormal tooth eruptionNumber of osteoblastsWild-type animalsBone resorptionCortical porosityActin ring formationCortical thicknessTooth eruptionOsteoclast functionResorptive activityDefective chemotaxisBone areaFemale animalsMiceOsteoclastsMigratory rateNormal sizeSignificant differences
2005
Glucose-dependent insulinotropic polypeptide receptor knockout mice have altered bone turnover
Xie D, Cheng H, Hamrick M, Zhong Q, Ding KH, Correa D, Williams S, Mulloy A, Bollag W, Bollag RJ, Runner RR, McPherson JC, Insogna K, Isales CM. Glucose-dependent insulinotropic polypeptide receptor knockout mice have altered bone turnover. Bone 2005, 37: 759-769. PMID: 16219496, DOI: 10.1016/j.bone.2005.06.021.Peer-Reviewed Original ResearchConceptsGlucose-dependent insulinotropic polypeptideGipr-/- miceReceptor knockout miceBone turnoverBone massGlucose-dependent insulinotropic polypeptide receptor knockout miceKnockout miceRole of GIPGIP receptor knockout miceEffects of GIPLow bone massBiomechanical bone strengthWild-type miceLean body massEarly age-related changesAge-related changesIncretin hormonesSerum markersMeal ingestionInsulinotropic polypeptideAnabolic effectsBone densityBone microarchitectureNutrient ingestionVivo effects
2003
The Cell Surface Form of Colony-Stimulating Factor-1 Is Biologically Active in Bone in Vivo
Yao GQ, Wu JJ, Sun BH, Troiano N, Mitnick MA, Insogna K. The Cell Surface Form of Colony-Stimulating Factor-1 Is Biologically Active in Bone in Vivo. Endocrinology 2003, 144: 3677-3682. PMID: 12865350, DOI: 10.1210/en.2002-221071.Peer-Reviewed Original ResearchConceptsOp/op miceWild-type miceOp miceBone densityTooth eruptionTransgenic micePeripheral quantitative computed tomographyMCSF-1Factor 1Number of osteoclastsQuantitative computed tomographyOp/op animalsMolar tooth eruptionWild-type animalsOP animalsComputed tomographyColony-stimulating factor-1Colony stimulating factor 1Normal incisorsHistomorphometric analysis
2000
Nuclear Factor-κB p50 Is Required for Tumor Necrosis Factor-α-Induced Colony-Stimulating Factor-1 Gene Expression in Osteoblasts*
Yao G, Sun B, Insogna K, Weir E. Nuclear Factor-κB p50 Is Required for Tumor Necrosis Factor-α-Induced Colony-Stimulating Factor-1 Gene Expression in Osteoblasts*. Endocrinology 2000, 141: 2914-2922. DOI: 10.1210/en.141.8.2914.Peer-Reviewed Original ResearchCSF-1 expressionKnock-out miceCSF-1NF-kBColony-stimulating factor (CSF)-1Gene expressionColony-stimulating factor-1 gene expressionCSF-1 gene expressionElectrophoretic mobility shift assayTumor necrosis factor (TNF)-aBone-resorbing agentsHematopoietic growth factorsWild-type miceMobility shift assayCSF-1 promoterBone remodeling in vivoNF-kB bindingNF-kB sitesMessenger RNA expressionShift assaysRemodeling in vivoTranscriptional mechanismsNorthern analysisBcl-3C-Rel