Vascular endothelial cell plasma membrane

The vascular endothelial cell plasma membrane is the specialized lipid bilayer that encapsulates endothelial cells, forming the innermost lining of the entire vascular system. It serves as a critical, dynamic interface between the blood and the vessel wall, regulating the selective passage of fluids, solutes, and cells into the underlying tissues (Source: Molecular Biology of the Cell, 6th Edition). This membrane is rich in diverse functional components, including ion channels, transporters, and receptors such as the vascular endothelial growth factor receptors (VEGFRs) and Tie receptors, which are essential for angiogenesis and vascular homeostasis (Source: Nature Reviews Molecular Cell Biology). It also expresses various adhesion molecules like ICAM-1 and VCAM-1 that facilitate the recruitment of immune cells during inflammatory responses (Source: PubMed, PMID: 15607310). From a pharmacological perspective, the vascular endothelial cell plasma membrane is considered a cellular compartment rather than a single therapeutic target because it encompasses thousands of distinct molecular entities. Dysfunction of this membrane, characterized by increased permeability and the loss of the protective glycocalyx layer, is a primary driver of cardiovascular diseases such as atherosclerosis and hypertension (Source: Journal of Clinical Investigation). While many drugs target specific proteins located within this membrane, the membrane itself is too broad and heterogeneous to be classified as a discrete drug target. Consequently, therapeutic strategies focus on modulating specific signaling pathways or surface proteins rather than the membrane as a whole (Source: StatPearls, Endothelial Dysfunction).

Other names

Endothelial cell membraneEndothelial plasma membraneLuminal endothelial surface

Not applicable as this is a cellular compartment containing multiple distinct molecular targets rather than a single therapeutic target.