Description
Supplementary information
This supplementary information is collated from multiple sources and compiled automatically.
Biological function summary
Endothelial cells maintain vascular tone and blood fluidity and they mediate angiogenesis which is the development of new blood vessels from pre-existing ones. They achieve these functions through the expression of adhesion molecules and growth factors. Endothelial cells contribute to the formation of a selective permeability barrier and respond to mechanical and chemical signals. They do not function alone; they are part of a larger vascular complex that includes smooth muscle cells and pericytes.
Pathways
Endothelial cells play key roles in the nitric oxide (NO) signaling and angiogenesis pathways. They produce nitric oxide a critical molecule for vasodilation and blood pressure regulation through the action of enzymes like endothelial nitric oxide synthase (eNOS). In the angiogenesis pathway endothelial cells interact with proteins like vascular endothelial growth factor (VEGF) which signals the proliferation and migration processes necessary for new blood vessel formation.