2023
An optogenetic-phosphoproteomic study reveals dynamic Akt1 signaling profiles in endothelial cells
Zhou W, Li W, Wang S, Salovska B, Hu Z, Tao B, Di Y, Punyamurtula U, Turk B, Sessa W, Liu Y. An optogenetic-phosphoproteomic study reveals dynamic Akt1 signaling profiles in endothelial cells. Nature Communications 2023, 14: 3803. PMID: 37365174, PMCID: PMC10293293, DOI: 10.1038/s41467-023-39514-1.Peer-Reviewed Original ResearchConceptsPhosphorylation sitesSerine/threonine kinase AktMass spectrometry-based phosphoproteomicsThreonine kinase AktAkt-dependent phosphorylationAberrant Akt activationEndothelial cellsKinase substrateKinase AktCell signalingPhosphorylation profilePhenotypic outcomesDownstream signalingAkt activationAkt1 phosphorylationHuman diseasesSystem-level analysisAKT1Vascular endothelial cellsRich resourcePhosphorylationSignalingGrowth factorAktCellsGenetic or therapeutic neutralization of ALK1 reduces LDL transcytosis and atherosclerosis in mice
Lee S, Schleer H, Park H, Jang E, Boyer M, Tao B, Gamez-Mendez A, Singh A, Folta-Stogniew E, Zhang X, Qin L, Xiao X, Xu L, Zhang J, Hu X, Pashos E, Tellides G, Shaul P, Lee W, Fernandez-Hernando C, Eichmann A, Sessa W. Genetic or therapeutic neutralization of ALK1 reduces LDL transcytosis and atherosclerosis in mice. Nature Cardiovascular Research 2023, 2: 438-448. PMID: 39196046, PMCID: PMC11358031, DOI: 10.1038/s44161-023-00266-2.Peer-Reviewed Original ResearchLDL transcytosisLDL receptor knockout miceReceptor knockout miceAtherosclerotic cardiovascular diseaseLow-density lipoprotein accumulationHigh-fat dietPromising therapeutic strategyTherapeutic neutralizationMacrophage infiltrationTriglyceride levelsLDL entryCardiovascular diseaseSelective monoclonal antibodiesLipoprotein accumulationTherapeutic strategiesKnockout micePlaque formationAtherosclerosis initiationType 1Genetic deletionArterial wallMonoclonal antibodiesEndothelial cellsLDL accumulationMice
2022
Inflammatory stress signaling via NF-kB alters accessible cholesterol to upregulate SREBP2 transcriptional activity in endothelial cells
Fowler JWM, Zhang R, Tao B, Boutagy NE, Sessa WC. Inflammatory stress signaling via NF-kB alters accessible cholesterol to upregulate SREBP2 transcriptional activity in endothelial cells. ELife 2022, 11: e79529. PMID: 35959888, PMCID: PMC9395194, DOI: 10.7554/elife.79529.Peer-Reviewed Original ResearchConceptsAcute inflammatory responseEndothelial cellsCholesterol homeostasisInflammatory stressInflammatory responsePro-inflammatory cytokinesSite of injuryCholesterol biosynthetic gene expressionNF-κB DNA bindingHuman endothelial cellsMultiple sclerosisInflammatory activationPrimary human endothelial cellsVascular endotheliumNF-κB-inducible genesTissue damageInducible targetAberrant activationRole of cholesterolSREBP2 activationMicrobial infectionsCholesterolKey transcription regulatorHomeostasisLeukocytes
2021
Characterization of a Novel Caveolin Modulator That Reduces Vascular Permeability and Ocular Inflammation
Bernatchez PN, Tao B, Bradshaw RA, Eveleth D, Sessa WC. Characterization of a Novel Caveolin Modulator That Reduces Vascular Permeability and Ocular Inflammation. Translational Vision Science & Technology 2021, 10: 21-21. PMID: 34111267, PMCID: PMC8132009, DOI: 10.1167/tvst.10.6.21.Peer-Reviewed Original ResearchConceptsOcular inflammationCell-permeable peptideRetinal damageVascular permeabilityModel of uveitisVascular endothelial growth factorNitric oxide releaseEndothelial growth factorNovel cell-permeable peptideEndothelial cell signalingVascular leakageClinical developmentInflammationOxide releaseEndothelial cellsNO releaseGrowth factorUveitisVEGFDistinct assaysPhage display technologyPresent studyVivoCell signalingPeptidesLoss of endothelial glucocorticoid receptor promotes angiogenesis via upregulation of Wnt/β-catenin pathway
Liu B, Zhou H, Zhang T, Gao X, Tao B, Xing H, Zhuang Z, Dardik A, Kyriakides TR, Goodwin JE. Loss of endothelial glucocorticoid receptor promotes angiogenesis via upregulation of Wnt/β-catenin pathway. Angiogenesis 2021, 24: 631-645. PMID: 33650028, PMCID: PMC8292305, DOI: 10.1007/s10456-021-09773-x.Peer-Reviewed Original ResearchConceptsWnt/β-catenin signalingWnt/β-catenin pathwayΒ-catenin signalingΒ-catenin pathwayAutophagy fluxKey biological processesGlucocorticoid receptorNuclear receptor familyTube formation assaysEndothelial cellsBiological processesCanonical WntP62 degradationReceptor familyFormation assaysAbsence of GRCell viability assaysProcess of angiogenesisWntGR regulationSignalingVivo assaysQuantitative PCRKey receptorPathway
2020
BMP-9 and LDL crosstalk regulates ALK-1 endocytosis and LDL transcytosis in endothelial cells
Tao B, Kraehling JR, Ghaffari S, Ramirez C, Lee S, Fowler JW, Lee WL, Fernandez-Hernando C, Eichmann A, Sessa WC. BMP-9 and LDL crosstalk regulates ALK-1 endocytosis and LDL transcytosis in endothelial cells. Journal Of Biological Chemistry 2020, 295: 18179-18188. PMID: 33097593, PMCID: PMC7939458, DOI: 10.1074/jbc.ra120.015680.Peer-Reviewed Original ResearchConceptsBone morphogenetic protein 9Dynamin 2Caveolin-1LDL transcytosisGene expressionActivin-like kinase 1Endothelial cellsEndothelial cell quiescenceCell surface levelsSmad1/5 phosphorylationExtensive endocytosisUnbiased screenProtein 9Cell quiescenceKinase 1ALK-1BMP-9 levelsEssential roleEndocytosisEndothelial homeostasisHeavy chainSignalingInternalizationTranscytosisCells
2016
Genome-wide RNAi screen reveals ALK1 mediates LDL uptake and transcytosis in endothelial cells
Kraehling JR, Chidlow JH, Rajagopal C, Sugiyama MG, Fowler JW, Lee MY, Zhang X, Ramírez CM, Park EJ, Tao B, Chen K, Kuruvilla L, Larriveé B, Folta-Stogniew E, Ola R, Rotllan N, Zhou W, Nagle MW, Herz J, Williams KJ, Eichmann A, Lee WL, Fernández-Hernando C, Sessa WC. Genome-wide RNAi screen reveals ALK1 mediates LDL uptake and transcytosis in endothelial cells. Nature Communications 2016, 7: 13516. PMID: 27869117, PMCID: PMC5121336, DOI: 10.1038/ncomms13516.Peer-Reviewed Original ResearchConceptsActivin-like kinase 1Wide RNAi screenGWA data setsLDL uptakeEndothelial cellsIdentification of pathwaysLDL receptorRNAi screenEndocytic pathwayLysosomal degradationKinase 1LDL transcytosisPhysiological roleGenetic ablationUptake of LDLPathwayFunctional LDL receptorsCellsLow affinityTranscytosisUptakeALK1Unique opportunityAortic endotheliumAnimals