Where is the PECAM?
PECAM-1 is expressed on the cell surface of hematopoietic and immune cells including platelets, neutrophils, monocytes, megakaryocytes, natural killer cells (NK cells), and some T cells and on endothelial cells where it is localized to the borders of adjacent cells.
What does CD31 do?
CD31 signalling participates in the regulation of leucocyte detachment, T-cell activation, platelet activation, and angiogenesis, all of which are critical to the pathogenesis of atherosclerosis and abdominal aortic aneurysms (AAAs). CD31 protein domains and their corresponding cellular functions.
What does PECAM-1 bind to?
Instead, PECAM-1 primarily binds other PECAM-1 molecules via homophilic-binding interactions known to require amino-terminal immunoglobulin homology domains 1 and 2 (IgD1 and IgD2).
What does Pecam stand for?
Platelet endothelial cell adhesion molecule (PECAM-1) also known as cluster of differentiation 31 (CD31) is a protein that in humans is encoded by the PECAM1 gene found on chromosome17q23.
Is Pecam an integrin?
CD31/PECAM-1 is a ligand for alpha v beta 3 integrin involved in adhesion of leukocytes to endothelium. J Cell Biol. 1995 Jul;130(2):451-60. doi: 10.1083/jcb. 130.2.
Is CD31 a surface marker?
CD31, a novel cell surface marker for CD4 cells of suppressor lineage, unaltered by state of activation.
Is CD31 an integrin?
CD31/PECAM-1 is a ligand for alpha v beta 3 integrin involved in adhesion of leukocytes to endothelium.
What is selectin inflammation?
Selectins are involved in constitutive lymphocyte homing, and in chronic and acute inflammation processes, including post-ischemic inflammation in muscle, kidney and heart, skin inflammation, atherosclerosis, glomerulonephritis and lupus erythematosus.
Where is PECAM-1 found?
PECAM-1 is found on the surface of platelets, monocytes, neutrophils, and some types of T-cells, and makes up a large portion of endothelial cell intercellular junctions.
How are selectin activated?
The selectin ligand PSGL-1 redistributes to the uropod and captures activated platelets by interacting with P-selectin. Platelet–neutrophil interactions transduce signals that facilitate intraluminal crawling.
What is CD34 positive?
CD34+ HPCs are isolated from human blood stem cells upon apheresis. Upon transplantation with the CD34+ HPCs, these cells can differentiate into a variety of cell types including fibroblasts, osteoblasts, chondrocytes, myocytes, adipocytes, and endothelial cells. Synonym: autologous CD34-positive HPCs.
What is P-selectin blocker?
Binding P-selectin on the surface of the activated endothelium and platelet cells blocks interactions between endothelial cells, platelets, red blood cells, and leukocytes; thereby, decreasing vaso-occlusive crises.
What is P-selectin expression?
P-selectin is a cell adhesion protein that is mainly expressed on the membrane of activated ECs and activated thrombocytes and has important roles in vascular leukocyte recruitment during the inflammatory response.