Featured Publications
Bone marrow sinusoidal endothelial cells are a site of Fgf23 upregulation in a mouse model of iron deficiency anemia
Li X, Lozovatsky L, Tommasini S, Fretz J, Finberg K. Bone marrow sinusoidal endothelial cells are a site of Fgf23 upregulation in a mouse model of iron deficiency anemia. Blood Advances 2023, 7: 5156-5171. PMID: 37417950, PMCID: PMC10480544, DOI: 10.1182/bloodadvances.2022009524.Peer-Reviewed Original ResearchConceptsSinusoidal endothelial cellsEndothelial cellsBone marrowBM sectionsFGF23 upregulationFibroblast growth factor 23Iron deficiencyElevated serum erythropoietinFGF23 promoter activityBM endothelial cellsGrowth factor 23Vitamin D metabolismIron deficiency anemiaSystemic iron deficiencyKnockout mice exhibitBone marrow sinusoidal endothelial cellsNormal iron balanceNonanemic controlsChronic anemiaFactor 23D metabolismEndothelial cell populationErythropoietin treatmentDeficiency anemiaMouse modelNCOA4 is regulated by HIF and mediates mobilization of murine hepatic iron stores after blood loss
Li X, Lozovatsky L, Sukumaran A, Gonzalez L, Jain A, Liu D, Ayala-Lopez N, Finberg KE. NCOA4 is regulated by HIF and mediates mobilization of murine hepatic iron stores after blood loss. Blood 2020, 136: 2691-2702. PMID: 32659785, PMCID: PMC7735158, DOI: 10.1182/blood.2020006321.Peer-Reviewed Original ResearchConceptsHepatic iron storesHypoxia-inducible factorNonheme iron concentrationsIron storesBlood lossNCOA4 expressionSubunit levelsHIF-2α knockdownMurine hepatoma cell lineMessenger RNA inductionDietary ironHepatic responseHepatoma cell lineHIF-1αHepatic originIron deficiencyInducible factorMiceCell linesNCOA4PhlebotomyModest effectRNA inductionIron concentrationProlyl hydroxylasesLow iron promotes megakaryocytic commitment of megakaryocytic-erythroid progenitors in humans and mice
Xavier-Ferrucio J, Scanlon V, Li X, Zhang PX, Lozovatsky L, Ayala-Lopez N, Tebaldi T, Halene S, Cao C, Fleming MD, Finberg KE, Krause DS. Low iron promotes megakaryocytic commitment of megakaryocytic-erythroid progenitors in humans and mice. Blood 2019, 134: 1547-1557. PMID: 31439541, PMCID: PMC6839952, DOI: 10.1182/blood.2019002039.Peer-Reviewed Original ResearchConceptsMK lineage commitmentExtracellular signal-regulated kinase (ERK) pathwaySignal-regulated kinase pathwayMegakaryocytic-erythroid progenitorsBone marrow transplantation assaysSignal transduction analysisIron-deficient conditionsGene expression analysisMegakaryocytic commitmentLineage commitmentTransferrin receptor 2MK lineageTmprss6-/- miceIron sensorExpression analysisKinase pathwayTransduction analysisTransplantation assaysErythroid progenitorsMarrow environmentHematopoietic cellsMessenger RNAPhospho-ERK1/2Systemic iron deficiencyLow ironNormalizing hepcidin predicts TMPRSS6 mutation status in patients with chronic iron deficiency
Heeney MM, Guo D, De Falco L, Campagna DR, Olbina G, Kao PP, Schmitz-Abe K, Rahimov F, Gutschow P, Westerman K, Ostland V, Jackson T, Klaassen R, Markianos K, Finberg KE, Iolascon A, Westerman M, London WB, Fleming MD. Normalizing hepcidin predicts TMPRSS6 mutation status in patients with chronic iron deficiency. Blood 2018, 132: 448-455. PMID: 29895660, PMCID: PMC6071554, DOI: 10.1182/blood-2017-03-773028.Peer-Reviewed Original ResearchTmprss6 is a genetic modifier of the Hfe-hemochromatosis phenotype in mice
Finberg KE, Whittlesey RL, Andrews NC. Tmprss6 is a genetic modifier of the Hfe-hemochromatosis phenotype in mice. Blood 2011, 117: 4590-4599. PMID: 21355094, PMCID: PMC3099575, DOI: 10.1182/blood-2010-10-315507.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntimicrobial Cationic PeptidesFemaleGenotypeHemochromatosisHemochromatosis ProteinHepcidinsHeterozygoteHistocompatibility Antigens Class IHomozygoteHumansIronLiverMaleMembrane ProteinsMiceMice, Inbred C57BLMice, TransgenicPhenotypeSerine EndopeptidasesSignal TransductionUp-RegulationConceptsBMP/SmadBone morphogenetic proteinSystemic iron deficiencyGenetic lossHereditary hemochromatosis protein HFENatural genetic variationHemochromatosis protein HFEIron deficiencySmad target genesIron deficiency anemiaSystemic iron overloadElevated hepatic expressionExpression of hepcidinIron-refractory iron deficiency anemiaTransmembrane serine proteaseDietary iron absorptionSystemic iron homeostasisGenetic variationGenetic approachesTarget genesMacrophage iron releaseHepcidin elevationMorphogenetic proteinsDeficiency anemiaHepcidin productionDown-regulation of Bmp/Smad signaling by Tmprss6 is required for maintenance of systemic iron homeostasis
Finberg KE, Whittlesey RL, Fleming MD, Andrews NC. Down-regulation of Bmp/Smad signaling by Tmprss6 is required for maintenance of systemic iron homeostasis. Blood 2010, 115: 3817-3826. PMID: 20200349, PMCID: PMC2865872, DOI: 10.1182/blood-2009-05-224808.Peer-Reviewed Original ResearchMeSH KeywordsAnemia, Iron-DeficiencyAnimalsAntimicrobial Cationic PeptidesBlotting, WesternBone Morphogenetic ProteinsDown-RegulationFemaleGPI-Linked ProteinsHemochromatosis ProteinHepatocytesHepcidinsHomeostasisInhibitor of Differentiation Protein 1IronLiverMembrane ProteinsMiceMice, Inbred C57BLMice, KnockoutReverse Transcriptase Polymerase Chain ReactionRNA, MessengerSerine EndopeptidasesSignal TransductionSmad ProteinsConceptsIron deficiency anemiaSystemic iron homeostasisHepcidin expressionSmad signalingIntravenous iron therapyOral iron treatmentSystemic iron overloadIron regulatory hormone hepcidinBMP/Smad signalingBmp6 mRNA levelsSmad Signaling PathwayIron homeostasisIron therapyIron storesDeficiency anemiaIron overloadHepatic levelsType II transmembrane serine proteaseIRIDA patientsTransmembrane serine proteaseFamilial disorderHormone hepcidinIron treatmentHepcidin transcriptionMiceMutations in TMPRSS6 cause iron-refractory iron deficiency anemia (IRIDA)
Finberg KE, Heeney MM, Campagna DR, Aydınok Y, Pearson HA, Hartman KR, Mayo MM, Samuel SM, Strouse JJ, Markianos K, Andrews NC, Fleming MD. Mutations in TMPRSS6 cause iron-refractory iron deficiency anemia (IRIDA). Nature Genetics 2008, 40: 569-571. PMID: 18408718, PMCID: PMC3104019, DOI: 10.1038/ng.130.Peer-Reviewed Original ResearchConceptsIron-refractory iron deficiency anemiaIron deficiency anemia refractoryChronic blood lossOral iron therapyInadequate dietary intakeIron deficiency anemiaIron regulatory hormone hepcidinSystemic iron homeostasisAnemia refractoryIron therapyBlood lossDeficiency anemiaDietary intakeType II transmembrane serine proteaseTransmembrane serine proteaseHormone hepcidinIron deficiencyGermline mutationsTMPRSS6Iron homeostasisSerine proteasesAnemiaTherapyHepcidinMutationsUnraveling Mechanisms Regulating Systemic Iron Homeostasis
Finberg KE. Unraveling Mechanisms Regulating Systemic Iron Homeostasis. Hematology 2011, 2011: 532-537. PMID: 22160085, PMCID: PMC3648641, DOI: 10.1182/asheducation-2011.1.532.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsSystemic iron homeostasisIron homeostasisProduction of hepcidinSystemic iron balanceHepcidin levelsRed blood cellsIron overloadDietary ironErythropoietic activityHepcidin responseAnimal modelsIron balanceIron disordersIron deficiencyBlood cellsHepcidinPhysiological stimuliDeleterious effectsLiverIron loadingHomeostasisTissue culture systemMolecular mechanismsKey regulatorAvailability of iron
2022
Blocking (iron) traffic in the gut
Finberg KE. Blocking (iron) traffic in the gut. Blood 2022, 139: 2424-2425. PMID: 35446376, DOI: 10.1182/blood.2022015480.Commentaries, Editorials and Letters
2021
Ironing out an approach to alleviate the hypoferremia of acute inflammation
Finberg KE. Ironing out an approach to alleviate the hypoferremia of acute inflammation. Haematologica 2021, 106: 326-328. PMID: 33522782, PMCID: PMC7849331, DOI: 10.3324/haematol.2020.266627.Commentaries, Editorials and Letters
2019
Going solo in iron transport
Finberg KE. Going solo in iron transport. Blood 2019, 134: 1363-1364. PMID: 31698431, DOI: 10.1182/blood.2019003019.Commentaries, Editorials and Letters
2013
Regulation of systemic iron homeostasis
Finberg KE. Regulation of systemic iron homeostasis. Current Opinion In Hematology 2013, 20: 208-214. PMID: 23426198, DOI: 10.1097/moh.0b013e32835f5a47.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsSystemic iron balanceMolecular mechanismsBone morphogenetic protein (BMP) type IHypoxia-inducible factor (HIF) pathwayInducible factor pathwayProtein type IHepcidin synthesisIron balanceBMP pathwayTransferrin receptor 2Systemic iron homeostasisCapacity of erythropoietinIron homeostasisComplex biologyNonredundant roleTissue culture systemHepcidin levelsInfectious stimuliIron storesFactor pathwayDietary ironErythropoietic activityReceptor 2PathwayAnimal modelsIron Refractory Iron Deficiency Anemia: Presentation With Hyperferritinemia and Response to Oral Iron Therapy
Khuong-Quang DA, Schwartzentruber J, Westerman M, Lepage P, Finberg KE, Majewski J, Jabado N. Iron Refractory Iron Deficiency Anemia: Presentation With Hyperferritinemia and Response to Oral Iron Therapy. Pediatrics 2013, 131: e620-e625. PMID: 23319530, PMCID: PMC3675830, DOI: 10.1542/peds.2012-1303.Peer-Reviewed Case Reports and Technical NotesMeSH KeywordsAdministration, OralAdolescentAnemia, HypochromicAnemia, Iron-DeficiencyAnemia, RefractoryChildChild, PreschoolChromosome AberrationsDNA Mutational AnalysisExomeFemaleFerritinsFollow-Up StudiesGenetic Carrier ScreeningGenotypeHumansIronLong-Term CareMaleMembrane ProteinsMutation, MissenseSerine EndopeptidasesConceptsIron deficiency anemiaIron-refractory iron deficiency anemiaOral iron therapyWhole-exome sequencingOral ironIron therapyDeficiency anemiaChildhood iron deficiency anemiaExome sequencingUnusual clinical presentationParenteral iron administrationSpectrum of diseaseIron regulatory genesSevere microcytic anemiaAutosomal recessive disorderAnemia refractoryBiological presentationClinical presentationInitial presentationIron administrationAnemiaMicrocytic anemiaGenetic testingHyperferritinemiaHeterozygous mutations
2009
Iron-Refractory Iron Deficiency Anemia
Finberg KE. Iron-Refractory Iron Deficiency Anemia. Seminars In Hematology 2009, 46: 378-386. PMID: 19786206, DOI: 10.1053/j.seminhematol.2009.06.006.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsMeSH KeywordsAdministration, OralAnemia, Iron-DeficiencyAnemia, RefractoryAntimicrobial Cationic PeptidesChildChild, PreschoolFemaleGPI-Linked ProteinsHematinicsHemochromatosis ProteinHepcidinsHumansInfantInfusions, ParenteralIronIron CompoundsLiverMaleMembrane ProteinsMutationSerine EndopeptidasesTreatment FailureUp-RegulationConceptsIron-refractory iron deficiency anemiaIron deficiency anemiaDeficiency anemiaOral iron treatmentParenteral iron therapyAutosomal recessive disorderIron therapyClinical presentationRecent studiesHepcidin expressionIron absorptionIRIDA patientsTransmembrane serine proteaseIron treatmentAnemiaElevated levelsRecessive disorderHepcidinLiverDisordersTMPRSS6Serine proteases