Endothelium Adaptation
Endothelium Adaptation - Related Videos
06:20
Imaging Leukocyte Adhesion to the Vascular Endothelium at High Intraluminal Pressure
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Cited by 21 •
2011
This is a method to visualise leukocyte adhesion to the endothelium in harvested pressurised vessels. The technique enables studying vascular adhesion under shear flow with differing intraluminal pressures up to 200 mmHg thus mimic-ing the pathophysiological conditions of high blood pressure.
06:40
Isolation and Functional Analysis of Arteriolar Endothelium of Mouse Brain Parenchyma
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Cited by 2 •
2022
Intensive preparation of intact mouse cerebral endothelial "tubes" from cerebral parenchymal arterioles is illustrated for studying cerebral blood flow regulation. Further, we demonstrate the experimental strengths of this endothelial study model for fluorescence imaging and electrophysiology measurement of key cellular signaling pathways, including changes in intracellular [Ca2+] and membrane potential.
05:53
Intraluminal Drug Delivery to the Mouse Arteriovenous Fistula Endothelium
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Cited by 6 •
2016
After puncturing the aorta through the inferior vena cava (IVC) to create an aorto-caval fistula in the mouse, solution containing a drug is infused into the IVC via the same needle, followed by incubation. This method enables more robust drug delivery to the venous endothelium compared to the external route.
08:14
Direct Induction of Hemogenic Endothelium and Blood by Overexpression of Transcription Factors in Human Pluripotent Stem Cells
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Cited by 6 •
2015
This protocol describes the efficient induction of hemogenic endothelium and multipotential hematopoietic progenitors from human pluripotent stem cells via the forced expression of transcription factors.
06:27
A Novel In vitro Model for Studying the Interactions Between Human Whole Blood and Endothelium
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Cited by 9 •
2014
The accessibility of reliable models to investigate vascular blood interactions in humans is lacking. We present an in vitro model of cultured primary human endothelial cells combined with human whole blood to investigate cellular interactions both in the blood (ELISA) and the vascular compartment (microscopy).
FAQs
Fluid shear stress and pressure act as changing physical inputs that endothelial cells detect through mechanosensors. These signals activate intracellular pathways that can modify gene expression, cell shape, permeability, and mediator release. The resulting adjustments help vessels accommodate altered mechanical demands while preserving vascular tone, barrier function, and appropriate communication with surrounding blood and immune cells.
Mechanosensors connect changes in the vessel environment to cellular behavior. When endothelial cells detect shear stress or pressure, signaling pathways transmit that information into functional and structural adjustments. These pathways influence which genes are expressed and how cells regulate permeability, mediator release, and shape. Their activity therefore determines whether the vascular lining responds appropriately to changing physiological conditions.
Adaptation becomes maladaptive when endothelial responses to physical or chemical stress disrupt normal vascular regulation rather than maintaining it. Altered signaling may promote excessive inflammation, impaired barrier integrity, abnormal vessel remodeling, or disturbed vascular tone. In vascular biology, these outcomes provide a mechanistic link between endothelial dysfunction and conditions such as hypertension, atherosclerosis, inflammation, and reduced tissue perfusion.
Studies should consider both physical and chemical conditions surrounding the vascular lining. Relevant variables include fluid shear stress, pressure, oxygen availability, and inflammatory signals. Researchers can then examine how changes in these inputs correspond to endothelial alterations in gene expression, cell shape, permeability, mediator release, and vessel remodeling. Considering multiple variables helps distinguish coordinated adaptation from isolated cellular effects.
In behavior research, the concept helps connect changing physiological demands with vascular responses that influence tissues. Endothelial adjustments affect vascular tone, barrier integrity, leukocyte trafficking, and vessel remodeling, all of which shape how blood vessels support tissue conditions. This perspective allows researchers to examine how environmental or physiological changes may be associated with altered vascular function without treating blood vessels as static structures.
Researchers can investigate whether changing conditions produce protective vascular adjustments or contribute to disease-related dysfunction. Useful outcomes include altered permeability, mediator release, cell shape, gene expression, vascular tone, leukocyte trafficking, and vessel remodeling. Comparing these responses across oxygen, pressure, shear, or inflammatory conditions can clarify mechanisms associated with inflammation, hypertension, atherosclerosis, and impaired tissue perfusion.