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Activation of Endothelial Activation of Endothelial

Activation of Endothelial - PowerPoint Presentation

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Uploaded On 2022-08-02

Activation of Endothelial - PPT Presentation

Cells and Blood CellsFactors IntercellularCellSurface Elements Selective alterationdysregulation of junctional proteins Claudins Occludin JAM Cell Adhesion proteins ESelectin ID: 932451

blood cell cells endothelial cell blood endothelial cells damage activation alteration oxygen species proteins

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Activation of Endothelial Cells and Blood Cells/Factors

Intercellular/Cell-Surface ElementsSelective alteration/dysregulation of junctional proteins (Claudins, Occludin, JAM, ...)Cell Adhesion proteins (E-Selectin, ICAM, PECAM,…)

Extracellular/ Blood-Cell ElementsWhite blood cell activation (LFA-1,…)Cytokine Release (TNFα, IL-1β, …)Autoregulation dysfunctionDiapedesisReactive Oxygen Species

Intracellular ResponseTranscription factor alteration (HIF-1, EGR, NFκB,...)Waste removal/ efflux mechanismIon channel (Na/K/2CL cotransporter, ...)Nutrient transporters (GLUT-1, LNAA, ...)Metabolism (ATP regulation, glucose)Reactive Oxygen Species

Capillary Leak

Local IschemiaScavenging of damaged cellsInterstitial EdemaTissue damage Chronic / Long-term Effects ???

-Perivascular tissue damage-Cytoskeletal / Tight Junction Protein Changes

-Cytotoxic Enzymes-ROS

Diapedesis

Endothelial Retraction

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