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 modelLow 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 ironTmprss6 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 production
2021
Bone Marrow Sinusoidal Endothelial Cells Are a Site of Fgf23 Upregulation in Iron Deficiency Anemia
Li X, Lozovatsky L, Fretz J, Finberg K. Bone Marrow Sinusoidal Endothelial Cells Are a Site of Fgf23 Upregulation in Iron Deficiency Anemia. Blood 2021, 138: 759. DOI: 10.1182/blood-2021-153329.Peer-Reviewed Original ResearchIron deficiency anemiaSinusoidal endothelial cellsBone marrow sinusoidal endothelial cellsNon-anemic controlsBone marrowFGF23 upregulationEndothelial cellsHepcidin elevationDeficiency anemiaFGF23 productionSerum erythropoietinChronic iron deficiency anemiaIron deficiencyFGF23 promoter activityTissue iron deficiencyIron-restricted anemiaFemurs of miceSystemic iron deficiencyBone marrow sectionsReporter alleleNormal iron balanceEndothelial cell subtypesTotal FGF23Phosphaturic hormoneBlood loss