Target intelligence / Profile preview

Capillary Permeability

Molecular classification: Functional property, Endothelial function, Barrier function

Overview

Capillary permeability refers to the property of capillary walls—specifically, the endothelium—that allows for the selective exchange of substances and cells between blood and surrounding tissues. This process is fundamental for tissue homeostasis, nutrient delivery, waste removal, immune surveillance, and drug distribution. It is determined by multiple molecular components within vascular endothelium that collectively control how substances cross from blood into tissues under both normal physiology and disease states.

Other names: Vascular permeabilityMicrovascular permeability

Biological functions

Selective exchange between blood and tissuesNutrient deliveryWaste removalImmune surveillanceDrug distributionRegulation of fluid balance

Disease associations

InflammationEdemaSepsisMyocardial ischemia-reperfusion injury

Safety considerations

Excessive leakage from microvessels into tissuesDisruption of blood-brain barrierExacerbation of inflammatory responses

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