Tyrosine kinase with immunoglobulin-like and EGF-like domains 1 also known as TIE1 is an angiopoietin receptor which in humans is encoded by the TIE1gene.[5]
TIE1 is a cell surface protein expressed exclusively in endothelial cells, however it has also been shown to be expressed in immature hematopoietic cells[6] and platelets.[7] TIE1 upregulates the cell adhesion molecules (CAMs) VCAM-1, E-selectin, and ICAM-1 through a p38-dependent mechanism. Attachment of monocyte derived immune cells to endothelial cells is also enhanced by TIE1 expression. TIE1 has a proinflammatory effect and may play a role in the endothelial inflammatory diseases such as atherosclerosis.[8]
^Rodewald HR, Sato TN (January 1996). "Tie1, a receptor tyrosine kinase essential for vascular endothelial cell integrity, is not critical for the development of hematopoietic cells". Oncogene. 12 (2): 397–404. PMID8570217.
^Tsiamis AC, Hayes P, Box H, Goodall AH, Bell PR, Brindle NP (2000). "Characterization and regulation of the receptor tyrosine kinase Tie-1 in platelets". Journal of Vascular Research. 37 (6): 437–42. doi:10.1159/000054075. PMID11146396. S2CID43509019.