2024
Notch signaling regulates UNC5B to suppress endothelial proliferation, migration, junction activity, and retinal plexus branching
Raza Q, Nadeem T, Youn S, Swaminathan B, Gupta A, Sargis T, Du J, Cuervo H, Eichmann A, Ackerman S, Naiche L, Kitajewski J. Notch signaling regulates UNC5B to suppress endothelial proliferation, migration, junction activity, and retinal plexus branching. Scientific Reports 2024, 14: 13603. PMID: 38866944, PMCID: PMC11169293, DOI: 10.1038/s41598-024-64375-z.Peer-Reviewed Original ResearchConceptsNotch signalingEndothelial cell behaviorEndothelial junctionsCell behaviorMultiple endothelial cell typesStabilization of endothelial junctionsNotch activationEndothelial Notch signalingTarget of Notch signalingTranscriptional activation complexEndothelial cell typesPlexus branchesVascular densityEndothelial proliferationBrain endotheliumMouse retinaIn vivo targetingEffector proteinsVascular outgrowthJunction activityNotch proteinsEndothelial cellsExcessive vascularizationDownstream effectorsEndothelial gene expression
2023
Chylomicrons Regulate Lacteal Permeability and Intestinal Lipid Absorption
Zarkada G, Chen X, Zhou X, Lange M, Zeng L, Lv W, Zhang X, Li Y, Zhou W, Liu K, Chen D, Ricard N, Liao J, Kim Y, Benedito R, Claesson-Welsh L, Alitalo K, Simons M, Ju R, Li X, Eichmann A, Zhang F. Chylomicrons Regulate Lacteal Permeability and Intestinal Lipid Absorption. Circulation Research 2023, 133: 333-349. PMID: 37462027, PMCID: PMC10530007, DOI: 10.1161/circresaha.123.322607.Peer-Reviewed Original ResearchConceptsLymphatic endothelial cellsCell-cell junctionsCytoskeleton contractionMolecular biology approachesSmall GTPase Rac1Cytoskeletal contractilityBiology approachGTPase Rac1Stress fibersA SignalingPI3KLipid uptakePermeability regulationLymphatic permeabilityIntestinal lipid absorptionLEC junctionJunction openingEndothelial cellsLymphatic capillariesVEGFR-2Fundamental mechanismsLymphatic barrierLymphatic vesselsVascular endothelial growthLymphatic junctionsConnexin 43-mediated neurovascular interactions regulate neurogenesis in the adult brain subventricular zone
Genet N, Genet G, Chavkin N, Paila U, Fang J, Vasavada H, Goldberg J, Acharya B, Bhatt N, Baker K, McDonnell S, Huba M, Sankaranarayanan D, Ma G, Eichmann A, Thomas J, Ffrench-Constant C, Hirschi K. Connexin 43-mediated neurovascular interactions regulate neurogenesis in the adult brain subventricular zone. Cell Reports 2023, 42: 112371. PMID: 37043357, PMCID: PMC10564973, DOI: 10.1016/j.celrep.2023.112371.Peer-Reviewed Original ResearchConceptsSubventricular zoneEndothelial cellsNSC proliferationNSC quiescenceAdult brain subventricular zoneBlood-brain barrierBrain subventricular zoneStem cell therapyNeural stem cell nicheNeurovascular interactionsNeuroblast generationAdult brainSingle-cell RNA sequencingNeurodegenerative disordersChannel-independent mannerCell therapySVZ-NSCsConnexin 43Expression of genesERK activationNSC regulationNSC behaviorRNA sequencingCx43Proliferation
2004
The netrin receptor UNC5B mediates guidance events controlling morphogenesis of the vascular system
Lu X, le Noble F, Yuan L, Jiang Q, de Lafarge B, Sugiyama D, Bréant C, Claes F, De Smet F, Thomas JL, Autiero M, Carmeliet P, Tessier-Lavigne M, Eichmann A. The netrin receptor UNC5B mediates guidance events controlling morphogenesis of the vascular system. Nature 2004, 432: 179-186. PMID: 15510105, DOI: 10.1038/nature03080.Peer-Reviewed Original ResearchConceptsNetrin receptor UNC5BEndothelial tip cell filopodiaTip cell filopodiaReceptor UNC5BEndothelial tip cellsVascular systemNetrin-1aTip cellsEndothelial cellsProper wiringAxon guidanceCell filopodiaNetrin receptorsGuidance eventsFilopodial retractionMorphogenesisUNC5BVessel branchingAberrant extensionAnatomical similaritiesNetrin-1CellsZebrafishGenesGuidance function