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 stimulationVasodilationLoss of Endothelial FTO Antagonizes Obesity-Induced Metabolic and Vascular Dysfunction
Krüger N, Biwer L, Good M, Ruddiman C, Wolpe A, DeLalio L, Murphy S, Macal E, Ragolia L, Serbulea V, Best A, Leitinger N, Harris T, Sonkusare S, Gödecke A, Isakson B. Loss of Endothelial FTO Antagonizes Obesity-Induced Metabolic and Vascular Dysfunction. Circulation Research 2019, 126: 232-242. PMID: 31801409, PMCID: PMC7007767, DOI: 10.1161/circresaha.119.315531.Peer-Reviewed Original ResearchConceptsMyogenic toneProstaglandin DResistance arteriesDeficient miceHigh-fat diet-induced glucose intoleranceDiet-induced glucose intoleranceObesity-induced hypertensionImpact of obesityPrevalence of obesityNew treatment optionsDevelopment of obesityHigh-fat dietRegulation of obesityDifferent cell typesCell typesGlucose intoleranceVascular alterationsVascular changesVascular dysfunctionControl miceInsulin resistanceTreatment optionsCardiovascular diseaseObesityArteryNon–Endoplasmic Reticulum–Based Calr (Calreticulin) Can Coordinate Heterocellular Calcium Signaling and Vascular Function
Biwer L, Good M, Hong K, Patel R, Agrawal N, Looft-Wilson R, Sonkusare S, Isakson B. Non–Endoplasmic Reticulum–Based Calr (Calreticulin) Can Coordinate Heterocellular Calcium Signaling and Vascular Function. Arteriosclerosis Thrombosis And Vascular Biology 2017, 38: 120-130. PMID: 29122814, PMCID: PMC5746467, DOI: 10.1161/atvbaha.117.309886.Peer-Reviewed Original ResearchConceptsThird-order mesenteric arteriesBlood pressureMesenteric arteryVascular functionCalcium signalingIEL holesApplication of CChMyoendothelial junctionsCalcium eventsER calciumSmooth muscle cellsInternal elastic laminaVascular reactivityResistance arteriesSmall arteriesSame arteryKnockout miceArteryΔ miceElastic laminaMuscle cellsEndoplasmic reticulum calciumMiceCALRCalcium signals
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
Vascular 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