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 inhibitorsCalcificationMice
2023
Lonafarnib improves cardiovascular function and survival in a mouse model of Hutchinson-Gilford progeria syndrome
Murtada S, Mikush N, Wang M, Ren P, Kawamura Y, Ramachandra A, Li D, Braddock D, Tellides G, Gordon L, Humphrey J. Lonafarnib improves cardiovascular function and survival in a mouse model of Hutchinson-Gilford progeria syndrome. ELife 2023, 12: e82728. PMID: 36930696, PMCID: PMC10023154, DOI: 10.7554/elife.82728.Peer-Reviewed Original ResearchConceptsMouse modelLeft ventricular diastolic functionHutchinson-Gilford progeria syndromeVentricular diastolic functionPulse wave velocityDrug-associated effectsMTOR inhibitor rapamycinCardiovascular sequelaeDiastolic functionProgeria syndromeDevastating conditionCardiac functionCardiovascular functionClinical trialsCardiovascular diseaseMuscular arteriesUS FoodDrug AdministrationProgeria miceArterial structurePremature deathLonafarnibCardiovascular structureCharacteristics of agingInhibitor rapamycin
2022
Characterization of hearing-impairment in Generalized Arterial Calcification of Infancy (GACI)
Theng EH, Brewer CC, Oheim R, Zalewski CK, King KA, Delsmann MM, Rolvien T, Gafni RI, Braddock DT, Jeffrey Kim H, Ferreira CR. Characterization of hearing-impairment in Generalized Arterial Calcification of Infancy (GACI). Orphanet Journal Of Rare Diseases 2022, 17: 273. PMID: 35854274, PMCID: PMC9295326, DOI: 10.1186/s13023-022-02410-w.Peer-Reviewed Original ResearchConceptsOssicular chain dysfunctionGeneralized Arterial CalcificationOtitis mediaArterial calcificationPrevalence of HLRecurrent otitis mediaTerms of patientTemporal bone imagingEtiology of HLBasic science laboratoryAuricular calcificationConductive HLHL etiologyOtologic featuresDegree of HLCohort studyOtologic evaluationRadiologic featuresAudiological assessmentAuditory dysfunctionTube placementRecurrent episodesBilateral HLCranial CTLikely multifactorialThe cardiomyocyte disrupts pyrimidine biosynthesis in non-myocytes to regulate heart repair
Li S, Yokota T, Wang P, Hoeve J, Ma F, Le TM, Abt ER, Zhou Y, Wu R, Nanthavongdouangsy M, Rodriguez A, Wang Y, Lin YJ, Muranaka H, Sharpley M, Braddock DT, MacRae VE, Banerjee U, Chiou PY, Seldin M, Huang D, Teitell M, Gertsman I, Jung M, Bensinger SJ, Damoiseaux R, Faull K, Pellegrini M, Lusis A, Graeber TG, Radu CG, Deb A. The cardiomyocyte disrupts pyrimidine biosynthesis in non-myocytes to regulate heart repair. Journal Of Clinical Investigation 2022, 132: e149711. PMID: 34813507, PMCID: PMC8759793, DOI: 10.1172/jci149711.Peer-Reviewed Original ResearchConceptsCardiac injuryHeart repairENPP1 inhibitorsPyrimidine biosynthesisHeart injuryIschemic cardiac injuryAdministration of uridineEctonucleotide pyrophosphatase/phosphodiesterase 1Augmenting tissue repairP53-mediated cell deathSmall molecule screeningCardiac muscle cellsPyrophosphatase/phosphodiesterase 1Systemic administrationNonmyocyte cellsMurine modelHeart functionCardiac repairGenotoxic stressInjuryIntercellular regulationMuscle cellsPopulation of cellsExtracellular ATPMolecule screening
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 densityMusculoskeletal Comorbidities and Quality of Life in ENPP1‐Deficient Adults and the Response of Enthesopathy to Enzyme Replacement Therapy in Murine Models
Ferreira CR, Ansh AJ, Nester C, O'Brien C, Stabach PR, Murtada S, Lester ER, Khursigara G, Molloy L, Carpenter TO, Braddock DT. Musculoskeletal Comorbidities and Quality of Life in ENPP1‐Deficient Adults and the Response of Enthesopathy to Enzyme Replacement Therapy in Murine Models. Journal Of Bone And Mineral Research 2020, 37: 494-504. PMID: 34882836, PMCID: PMC9667476, DOI: 10.1002/jbmr.4487.Peer-Reviewed Original ResearchConceptsENPP1 deficiencyAsj/Musculoskeletal complicationsBrief Pain Inventory-Short FormPhysical Function Short FormFibroblast growth factor 23Achilles tendon calcificationHealth-related qualityMajority of patientsGrowth factor 23Cervical spine fusionPresence of enthesopathyQuality of lifeAnalgesic medicationRegular chowResidual painAdult patientsDose escalationFactor 23Replacement therapyPhysical functionCardiovascular calcificationTendon calcificationAchilles tendonSpine fusionGenetic pathways disrupted by ENPP1 deficiency provide insight into mechanisms of osteoporosis, osteomalacia, and paradoxical mineralization
Maulding ND, Kavanagh D, Zimmerman K, Coppola G, Carpenter TO, Jue NK, Braddock DT. Genetic pathways disrupted by ENPP1 deficiency provide insight into mechanisms of osteoporosis, osteomalacia, and paradoxical mineralization. Bone 2020, 142: 115656. PMID: 32980560, PMCID: PMC7744330, DOI: 10.1016/j.bone.2020.115656.Peer-Reviewed Original ResearchConceptsGenetic pathwaysSkeletal phenotypeGene expressionHuman disease phenotypesAsj/Suppression of WntTranscript countsGene transcriptionENPP1-deficient miceGene pathwaysEnzyme functionENPP1 deficiencyWnt ligandsSoluble Wnt inhibitorsWnt activityReduced gene transcriptionBiomechanical phenotypeTranscriptionWnt inhibitorsBone findingsUnbiased analysisDisease phenotypePhenotypeOld miceStrong signatureNext generation miRNA inhibition using short anti-seed PNAs encapsulated in PLGA nanoparticles
Malik S, Lim J, Slack FJ, Braddock DT, Bahal R. Next generation miRNA inhibition using short anti-seed PNAs encapsulated in PLGA nanoparticles. Journal Of Controlled Release 2020, 327: 406-419. PMID: 32835710, PMCID: PMC7606596, DOI: 10.1016/j.jconrel.2020.08.026.Peer-Reviewed Original ResearchConceptsShort PNA probesPNA probesPLGA nanoparticlesRelease profileNanoparticle formulationNanoparticlesSuperior loadingEfficient transfection efficiencyCationic domainsPotential cancer therapySystemic deliveryTarget proteinsSize distributionProbeTransfection efficiencyMiRNA-155New avenuesPNAUniform distributionProof of conceptCancer therapeuticsCancer therapyReagentsChronic toxicityMicroscopyParadoxical aortic stiffening and subsequent cardiac dysfunction in Hutchinson–Gilford progeria syndrome
Murtada SI, Kawamura Y, Caulk AW, Ahmadzadeh H, Mikush N, Zimmerman K, Kavanagh D, Weiss D, Latorre M, Zhuang ZW, Shadel GS, Braddock DT, Humphrey JD. Paradoxical aortic stiffening and subsequent cardiac dysfunction in Hutchinson–Gilford progeria syndrome. Journal Of The Royal Society Interface 2020, 17: 20200066. PMID: 32453981, PMCID: PMC7276555, DOI: 10.1098/rsif.2020.0066.Peer-Reviewed Original ResearchConceptsHutchinson-Gilford progeria syndromeSubsequent cardiac dysfunctionSmooth muscle functionPulse wave velocityUltra-rare disordersCardiovascular eventsDevastating sequelaeDiastolic dysfunctionSystolic functionCardiac dysfunctionProgeria syndromeVascular functionAortic functionMuscle functionEarly deathMouse modelTherapeutic windowCardiovascular dataBiomechanical phenotypingDysfunctionSyndromeExcessive accumulationBiomechanical functionArterial developmentPressure-related effectsGenetic and pharmacologic modulation of cementogenesis via pyrophosphate regulators
Chu EY, Vo TD, Chavez MB, Nagasaki A, Mertz EL, Nociti FH, Aitken SF, Kavanagh D, Zimmerman K, Li X, Stabach PR, Braddock DT, Millán JL, Foster BL, Somerman MJ. Genetic and pharmacologic modulation of cementogenesis via pyrophosphate regulators. Bone 2020, 136: 115329. PMID: 32224162, PMCID: PMC7482720, DOI: 10.1016/j.bone.2020.115329.Peer-Reviewed Original Research
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
2017
Intraperitoneal pyrophosphate treatment reduces renal calcifications in Npt2a null mice
Caballero D, Li Y, Fetene J, Ponsetto J, Chen A, Zhu C, Braddock DT, Bergwitz C. Intraperitoneal pyrophosphate treatment reduces renal calcifications in Npt2a null mice. PLOS ONE 2017, 12: e0180098. PMID: 28704395, PMCID: PMC5509111, DOI: 10.1371/journal.pone.0180098.Peer-Reviewed Original ResearchConceptsRenal calcificationCompared to WT miceElevated urinary excretionRenal stone diseaseNucleotide pyrophosphatase phosphodiesterase 1WT miceDietary calciumUrinary excretionIntraperitoneal administrationStone diseaseNull miceMouse mutationMiceCalcificationNephrocalcinosisNpt2aDisordersUnrecognized factorsContribution of genotypePresent studyPhosphodiesterase 1PPINpt2cPatientsNephrolithiasis
2016
In vivo correction of anaemia in β-thalassemic mice by γPNA-mediated gene editing with nanoparticle delivery
Bahal R, Ali McNeer N, Quijano E, Liu Y, Sulkowski P, Turchick A, Lu YC, Bhunia DC, Manna A, Greiner DL, Brehm MA, Cheng CJ, López-Giráldez F, Ricciardi A, Beloor J, Krause DS, Kumar P, Gallagher PG, Braddock DT, Mark Saltzman W, Ly DH, Glazer PM. In vivo correction of anaemia in β-thalassemic mice by γPNA-mediated gene editing with nanoparticle delivery. Nature Communications 2016, 7: 13304. PMID: 27782131, PMCID: PMC5095181, DOI: 10.1038/ncomms13304.Peer-Reviewed Original ResearchConceptsNanoparticle deliveryGene correctionReversal of splenomegalyPeptide nucleic acidLow off-target effectsVivo correctionGenome editingOff-target effectsGene editingHaematopoietic stem cellsNucleic acidsDonor DNAStem cellsΓPNAΒ-thalassaemiaNanoparticlesDeliveryEditingSCF treatmentTriplex formation
2014
MicroRNA silencing for cancer therapy targeted to the tumour microenvironment
Cheng CJ, Bahal R, Babar IA, Pincus Z, Barrera F, Liu C, Svoronos A, Braddock DT, Glazer PM, Engelman DM, Saltzman WM, Slack FJ. MicroRNA silencing for cancer therapy targeted to the tumour microenvironment. Nature 2014, 518: 107-110. PMID: 25409146, PMCID: PMC4367962, DOI: 10.1038/nature13905.Peer-Reviewed Original Research
1998
Structure−Function Relationships in Side Chain Lactam Cross-Linked Peptide Models of a Conserved N-Terminal Domain of Apolipoprotein E †
Benzinger T, Braddock D, Dominguez S, Burkoth T, Miller-Auer H, Subramanian R, Fless G, Jones D, Lynn D, Meredith S. Structure−Function Relationships in Side Chain Lactam Cross-Linked Peptide Models of a Conserved N-Terminal Domain of Apolipoprotein E †. Biochemistry 1998, 37: 13222-13229. PMID: 9748329, DOI: 10.1021/bi980482f.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsApolipoproteins ECell LineCircular DichroismConserved SequenceEmbryo, MammalianFibroblastsIodine RadioisotopesLactamsMiceModels, MolecularMolecular Sequence DataNuclear Magnetic Resonance, BiomolecularPeptide FragmentsProtein Structure, SecondaryReceptors, LDLStructure-Activity RelationshipConceptsPeptide IVPeptide modelsConformational switchSide chain lactamLipid surfaceSide chainsBioactive peptidesStructural orderMultiple conformationsBiological activityStructure-function relationshipsLactamsAlpha-helixStrategic modificationsSecondary structureHelical segmentsPeptide IIIConformationAlpha-helical segmentsShort alpha helixCOOHHelixAntipodeStructureSolution