Featured Publications
Catalysis‐Independent ENPP1 Protein Signaling Regulates Mammalian Bone Mass
Zimmerman K, Liu X, von Kroge S, Stabach P, Lester ER, Chu EY, Srivastava S, Somerman MJ, Tommasini SM, Busse B, Schinke T, Carpenter TO, Oheim R, Braddock DT. Catalysis‐Independent ENPP1 Protein Signaling Regulates Mammalian Bone Mass. Journal Of Bone And Mineral Research 2020, 37: 1733-1749. PMID: 35773783, PMCID: PMC9709593, DOI: 10.1002/jbmr.4640.Peer-Reviewed Original ResearchConceptsHeterotopic mineralizationBone massFibroblast growth factor 23Growth factor 23Low bone massSoft tissue calcificationEarly-onset osteoporosisFrizzled-related protein 1Soluble Wnt inhibitorsTrabecular bone microarchitectureENPP1 deficiencyΒ-catenin signalingFactor 23Plasma FGF23Vascular calcificationArterial calcificationNuclear β-cateninPlasma PPiBone microarchitectureMurine modelTissue calcificationPlasma PiWnt inhibitorsCalcificationMiceIdentification of ENPP1 Haploinsufficiency in Patients With Diffuse Idiopathic Skeletal Hyperostosis and Early‐Onset Osteoporosis
Kato H, Ansh AJ, Lester ER, Kinoshita Y, Hidaka N, Hoshino Y, Koga M, Taniguchi Y, Uchida T, Yamaguchi H, Niida Y, Nakazato M, Nangaku M, Makita N, Takamura T, Saito T, Braddock DT, Ito N. Identification of ENPP1 Haploinsufficiency in Patients With Diffuse Idiopathic Skeletal Hyperostosis and Early‐Onset Osteoporosis. Journal Of Bone And Mineral Research 2020, 37: 1125-1135. PMID: 35340077, PMCID: PMC9177665, DOI: 10.1002/jbmr.4550.Peer-Reviewed Original ResearchConceptsAutosomal recessive hypophosphatemic rickets type 2Diffuse idiopathic skeletal hyperostosisEarly-onset osteoporosisENPP1 variantsHypophosphatemic ricketsENPP1 mutationsFibroblast growth factor 23Case 1Growth factor 23Serum phosphate levelsIdiopathic skeletal hyperostosisPosterior longitudinal ligamentCase 3Spinal ligament ossificationFactor 23Skeletal hyperostosisArterial calcificationLongitudinal ligamentPresumptive diagnosisLigament ossificationSevere ossificationMutational statusType 2Pathogenic lossGenetic testing
2023
ENPP1 in Blood and Bone: Skeletal and Soft Tissue Diseases Induced by ENPP1 Deficiency
Ferreira C, Carpenter T, Braddock D. ENPP1 in Blood and Bone: Skeletal and Soft Tissue Diseases Induced by ENPP1 Deficiency. Annual Review Of Pathology Mechanisms Of Disease 2023, 19: 507-540. PMID: 37871131, PMCID: PMC11062289, DOI: 10.1146/annurev-pathmechdis-051222-121126.Peer-Reviewed Original ResearchGeneral medical populationENPP1 deficiencyMedical populationsEctonucleotide pyrophosphatase/phosphodiesteraseSoft tissue diseaseEarly-onset osteoporosisMiddle-aged adultsClinical presentationTissue diseaseVascular calcificationArterial calcificationBedside developmentRare diseaseMineralization disordersLarge arteriesPyrophosphatase/phosphodiesteraseClinical phenotypeExtracellular ATPSoft tissuePathophysiologyAdenosine monophosphateDiseaseCalcificationTransmembrane glycoproteinDeficiency
2020
Response of the ENPP1‐Deficient Skeletal Phenotype to Oral Phosphate Supplementation and/or Enzyme Replacement Therapy: Comparative Studies in Humans and Mice
Ferreira CR, Kavanagh D, Oheim R, Zimmerman K, Stürznickel J, Li X, Stabach P, Rettig RL, Calderone L, MacKichan C, Wang A, Hutchinson HA, Nelson T, Tommasini SM, von Kroge S, Fiedler IA, Lester ER, Moeckel GW, Busse B, Schinke T, Carpenter TO, Levine MA, Horowitz MC, Braddock DT. Response of the ENPP1‐Deficient Skeletal Phenotype to Oral Phosphate Supplementation and/or Enzyme Replacement Therapy: Comparative Studies in Humans and Mice. Journal Of Bone And Mineral Research 2020, 36: 942-955. PMID: 33465815, PMCID: PMC8739051, DOI: 10.1002/jbmr.4254.Peer-Reviewed Original ResearchConceptsBone mineral densityLow bone mineral densityTrabecular bone massBone massEarly-onset osteoporosisAsj/Conventional therapyLower trabecular bone massGreater bone fragilityRisk of nephrocalcinosisHigh-phosphate dietLow bone massCortical bone massDevelopment of nephrocalcinosisBone biomechanical propertiesAcademic medical centerPlasma phosphorus concentrationsAutosomal recessive hypophosphatemic ricketsRecessive hypophosphatemic ricketsENPP1 deficiencyRachitic phenotypeMedullary nephrocalcinosisRenal failureNormal chowMineral density
2019
Human Heterozygous ENPP1 Deficiency Is Associated With Early Onset Osteoporosis, a Phenotype Recapitulated in a Mouse Model of Enpp1 Deficiency
Oheim R, Zimmerman K, Maulding ND, Stürznickel J, von Kroge S, Kavanagh D, Stabach PR, Kornak U, Tommasini SM, Horowitz MC, Amling M, Thompson D, Schinke T, Busse B, Carpenter TO, Braddock DT. Human Heterozygous ENPP1 Deficiency Is Associated With Early Onset Osteoporosis, a Phenotype Recapitulated in a Mouse Model of Enpp1 Deficiency. Journal Of Bone And Mineral Research 2019, 35: 528-539. PMID: 31805212, PMCID: PMC7184798, DOI: 10.1002/jbmr.3911.Peer-Reviewed Original ResearchConceptsAutosomal recessive hypophosphatemic rickets type 2ENPP1 deficiencyEarly-onset osteoporosisGene-dose effectOnset osteoporosisAsj/Bone mineral density scansBone mineralization disturbancesRenal phosphate wastingCortical boneDose effectMild osteomalaciaMineralization disturbancesFGF23 levelsMild elevationPlasma FGF23Arterial calcificationBone massPhosphate wastingSkeletal manifestationsBone fragilityThoracic spineWild-type family membersType 2Adult men