Featured Publications
Endothelial calreticulin deletion impairs endothelial function in aged mice
Biwer L, Askew-Page H, Hong K, Milstein J, Johnstone S, Macal E, Good M, Bagher P, Sonkusare S, Isakson B. Endothelial calreticulin deletion impairs endothelial function in aged mice. AJP Heart And Circulatory Physiology 2020, 318: h1041-h1048. PMID: 32196361, PMCID: PMC7346539, DOI: 10.1152/ajpheart.00586.2019.Peer-Reviewed Original ResearchConceptsVascular functionTauroursodeoxycholic acidMesenteric arteryAged miceCalcium signalsImpaired endothelial-dependent vasodilationThird-order mesenteric arteriesEndothelial cellsEndothelial-dependent vasodilationIncubation of arteriesImpairs endothelial functionSmall resistance arteriesMultifunctional calcium binding proteinER stress inhibitor tauroursodeoxycholic acidWk of ageEndoplasmic reticulum stressPE constrictionEndothelial functionVasodilatory functionResistance arteriesCalcium binding proteinAgonist carbacholClinical trialsMuscarinic stimulationVasodilation
2021
A venous-specific purinergic signaling cascade initiated by Pannexin 1 regulates TNFα-induced increases in endothelial permeability
Maier-Begandt D, Comstra H, Molina S, Krüger N, Ruddiman C, Chen Y, Chen X, Biwer L, Johnstone S, Lohman A, Good M, DeLalio L, Hong K, Bacon H, Yan Z, Sonkusare S, Koval M, Isakson B. A venous-specific purinergic signaling cascade initiated by Pannexin 1 regulates TNFα-induced increases in endothelial permeability. Science Signaling 2021, 14 PMID: 33653920, PMCID: PMC8011850, DOI: 10.1126/scisignal.aba2940.Peer-Reviewed Original ResearchConceptsRNA expression profilingHydrolysis of ATPPannexin-1 channelsExpression profilingArterial endothelial cellsEndothelial cellsArterial endotheliumVenous endothelial cellsBarrier functionProtein analysisLung vascular permeabilityPannexin-1Claudin compositionBarrier function impairmentProinflammatory cytokine TNFαEndothelial cell barrierTargetable pathwaysMurine veinCecal ligationCell barrierFunction impairmentInflammatory insultLife spanDeficient miceVascular leak
2017
Loss of endothelial Fto is protective against metabolic disease
Krüger N, Biwer L, Good M, Rüther U, Isakson B. Loss of endothelial Fto is protective against metabolic disease. The FASEB Journal 2017, 31 DOI: 10.1096/fasebj.31.1_supplement.1015.15.Peer-Reviewed Original ResearchHigh-fat dietObesity-induced metabolic changesHFD-fed miceMyogenic toneBlood pressureNormal chowMesenteric arteryResistance arteriesEndothelial cellsMetabolic changesNC-fed miceObesity-induced hypertensionSerum lipid levelsOrder mesenteric arteriesSerum lipid analysisFto-deficient miceVascular healthVascular levelVascular toneInsulin resistanceInsulin toleranceFat dietPathophysiological changesDeficient miceFat mass
2016
Two functionally distinct pools of eNOS in endothelium are facilitated by myoendothelial junction lipid composition
Biwer L, Taddeo E, Kenwood B, Hoehn K, Straub A, Isakson B. Two functionally distinct pools of eNOS in endothelium are facilitated by myoendothelial junction lipid composition. Biochimica Et Biophysica Acta 2016, 1861: 671-679. PMID: 27106139, PMCID: PMC4869716, DOI: 10.1016/j.bbalip.2016.04.014.Peer-Reviewed Original ResearchMeSH KeywordsBiological TransportBradykininCalciumCalcium SignalingCell CommunicationCoculture TechniquesCyclic GMPDiglyceridesEgtazic AcidEndoplasmic ReticulumEndothelial CellsGap JunctionsGene Expression RegulationHumansInositol 1,4,5-TrisphosphateMacrocyclic CompoundsMyocytes, Smooth MuscleNitric Oxide Synthase Type IIIOxazolesPhenylephrinePhosphatidylserinesPhosphorylationPrimary Cell CultureProtein Kinase CProtein Kinase InhibitorsThapsigarginVascular effects of alpha hemoglobin stabilizing protein deletion
Biwer L, Lechauve C, Billaud M, Weiss M, Isakson B. Vascular effects of alpha hemoglobin stabilizing protein deletion. The FASEB Journal 2016, 30 DOI: 10.1096/fasebj.30.1_supplement.1276.3.Peer-Reviewed Original ResearchSmooth muscle cellsEndothelial cellsMyoendothelial junctionsNeighboring smooth muscle cellsMean arterial pressureBlood pressure measurementsAlpha hemoglobinConcentration-dependent mannerAvailable nitric oxideArterial pressureVascular effectsResistance arteriesKnockout miceENOS interactionMuscle cellsNitric oxideHemoglobin HENOSMiceNational InstitutePercent distributionHemoglobinPressure measurementsHemoglobin betaPLA signalsLipid composition of the myoendothelial junction allows for compartmentalized eNOS function
Biwer L, Taddeo E, Hoehn K, Straub A, Isakson B. Lipid composition of the myoendothelial junction allows for compartmentalized eNOS function. The FASEB Journal 2016, 30 DOI: 10.1096/fasebj.30.1_supplement.727.9.Peer-Reviewed Original ResearchEndothelial nitric oxide synthaseSmooth muscle cellsEndothelial cellsMyoendothelial junctionsResistance arteriesEC endothelial nitric oxide synthaseNeighboring smooth muscle cellsTumor necrosis factor alphaBlood pressure regulationNecrosis factor alphaNitric oxide synthasePKC activityHuman smooth muscle cellsInternal elastic laminaER calcium releaseTHP-1 monocytesCo-cultured endothelial cellsVascular toneENOS functionOxide synthaseFactor alphaGap junction inhibitionLipid compositionDifferential lipid compositionPhenylephrineEndothelial calreticulin and its role in vascular function
Biwer L, Good M, Sonkusare S, Isakson B. Endothelial calreticulin and its role in vascular function. The FASEB Journal 2016, 30 DOI: 10.1096/fasebj.30.1_supplement.955.3.Peer-Reviewed Original ResearchBlood pressureResistance arteriesSmooth muscle cellsER calcium releaseEndothelial cellsMyoendothelial junctionsVascular toneCalcium releaseIntact resistance arteriesPercentage of CD31Microvascular endothelial cellsInternal elastic laminaKnockdown of calreticulinAcute injectionPressure myographyCalcium binding proteinControl miceTamoxifen injectionVascular functionCD31 antibodyKnockout miceCalcium transientsAnatomical hallmarksElastic laminaMuscle cells