Anti-Urokinase Plasminogen Activator Receptor (U Plasminogen Activator Receptor, UPA Receptor, uPAR,

CD87, a 45- to 60kD protein, consists of three structurally homologous domains of ~90aa, designated D1, D2, and D3, each containing a conserved arrangement of disulfide bonds and separated by short interdomain linker sequences. uPAR exists in various molecular forms, heavily glycosylated, a cleaved form, a soluble form and spliced forms. CD87 is expressed by monocytes/macrophages, neutrophils, endothelial, smooth muscle cells and epithelial cells. CD87 is overexpressed upon exposure to inflammatory mediators. The protein is also highly expressed by tumor cells and contributes to their invasiveness and metastatic potential. CD87 is a multiligand receptor that operates as a key element in pathophysiological processes involving cell migration and tissue remodelling during inflammation and cancer metastasis. CD87 binds with high affinity the Ser-proteinase urokinase-type plasminogen activator (uPA) which, upon binding catalyzes the conversion of plasminogen into plasmin which activates various matrix metalloproteinase leading to a high potential for pericellular proteolysis. CD87 functions also as an adhesion molecule by binding vitronectin, thus contributing to leukocytic adherence. High-affinity binding of CD87 to both uPA and vitronectin requires the presence of domain 1 (D1). Yet, CD87 participates in cell adherence and migration also through two other routes, a physical association and functional interaction with various integrins and via an intrinsic chemotactic activity associated to the D1-D2 linker sequence. Applications: Can be used for Western Blot and Flow Cytometry., Other applications not tested. Recommended Dilution: Flow Cytometry: 10ul/10e6 cells using mouse whole blood monocytes, Optimal dilutions to be determined by the researcher. Storage and Stability: Store product at 4°C in the dark. DO NOT FREEZE! Stable at 4°C for 12 months after receipt as an undiluted liquid. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Caution: PE conjugates are sensitive to light. For maximum recovery of product, centrifuge the original vial prior to removing the cap.