Target intelligence / Profile preview

Endothelial Barrier Function (EBF)

Target: EBF
Molecular classification: Cellular Process, Physiological Process

Overview

Endothelial barrier function refers to the ability of the endothelial cell layer, which lines blood and lymphatic vessels, to regulate the passage of fluids, solutes, and cells between the bloodstream (or lymph) and surrounding tissues. This barrier is essential for maintaining tissue homeostasis, controlling vascular permeability, and preventing inappropriate leakage or infiltration of substances. Its disruption is implicated in numerous diseases.

Other names: Vascular PermeabilityEndothelial PermeabilityBlood-Tissue BarrierMicrovascular Integrity

Mechanism of action

Varies depending on the specific modulator. Includes: - Strengthening intercellular junctions (tight junctions, adherens junctions). - Stabilizing the glycocalyx. - Modulating actin cytoskeleton dynamics. - Regulating calcium signaling.

Biological functions

Regulation of vascular permeabilityControl of fluid exchangeRegulation of immune cell traffickingMaintenance of tissue homeostasisRegulation of angiogenesisRegulation of vasodilation/constriction

Disease associations

Edema formationChronic inflammationAtherosclerosisAcute lung injuryCancer metastasisSepsisVascular Leak Syndromes

Safety considerations

Off-target effects on other vascular bedsPotential for thrombosis or excessive vasoconstrictionImmune-related adverse eventsDevelopment of resistanceDisruption of physiological processes

Interacting drugs

Sphingosine‐1‐phosphate

6 more in the full profile.

Biomarkers

Serum levels of endothelial cell markers (e.g., VE-cadherin fragments)Albumin levels in interstitial fluidExpression levels of junctional proteins (e.g., claudins, occludins, VE-cadherin)Quantification of vascular leakage using imaging techniques

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