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Endothelial cell-specific chemotaxis regulator ECSCR, endothelial cell-specific chemotaxis regulator, is a family of proteins found in eukaryotes. It is also known as ARIA for apoptosis regulator through modulating IAP expression. It is a cell surface protein that regulates endothelial chemotaxis and tube formation, and interacts with filamin A. Filamin A anchors transmembrane proteins to the actin cytoskeleton becoming a scaffold for various signalling proteins. ECSCR is also known to interact with and regulate the function of several endothelial transmembrane molecules. It has been shown to play a role in angiogenesis, a complex process involving the migration, proliferation, and lumen formation of blood vessels by endothelial cells. ECSCR appears also to regulate endothelial apoptosis, probably through modulating proteasomal degradation of cIAP-1 and cIAP-2 in endothelial cells.
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