Human PAI-1 AccuSignal ELISA Kit

• Natural and recombinant human PAI-1.
• There is no detectable cross-reactivity with other relevant proteins.
• Expression system for standard: sf21; Immunogen sequence: S22-P402

Plasminogen activator inhibitor-1 is the principal inhibitor of tissue plasminogen activator(tPA) and urokinase(uPA), the activators of plasminogen and hence fibrinolysis(the physiological breakdown of blood clots). It is a serine protease inhibitor(serpin) protein(SERPINE1). PAI-1 is mainly produced by the endothelium(cells lining blood vessels), but is also secreted by other tissue types, such as adipose tissue. The PAI-1 gene is located on the seventh chromosome(7q21.3-q22).1 Congenital deficiency of PAI-1 leads to a hemorrhagic diathesis(a tendency to hemorrhage). PAI-1 is present in increased levels in various disease states(such as a number of forms of cancer), as well as in obesity and the metabolic syndrome. It has been linked to the increased occurrence of thrombosis in patients with these conditions. Additionally, it has been shown to interact with ORM1.2 The standard product used in this kit is recombinant human PAI-1 with the molecular mass of 43KDa.

Useful in Sandwich ELISA for Quantitative Detection of Antigen. Aliquot 0.1ml per well of the 10000pg/ml, 5000pg/ml, 2500pg/ml, 1250pg/ml, 625pg/ml, 312pg/ml, 156pg/ml human PAI-1 standard solutions into the precoated 96-well plate. Add 0.1ml of the sample diluent buffer into the control well (Zero well). Add 0.1ml of each properly diluted sample of human cell culture supernates, cell lysates, serum or plasma(heparin, EDTA, citrate ) to each empty well. It is recommended that each human PAI-1 standard solution and each sample be measured in duplicate.