Abcam, ab119611, Human uPA ELISA Kit (URK)

Size: 1 x 96Tests
Human uPA ELISA Kit (URK) is a Sandwich (quantitative) ELISA for the measurement of Human uPA (URK) in Human in Cell/Tissue Extracts, Cell Culture Media, Biofluids samples.
Key facts
Detection method:Colorimetric,
Sample types:Cell Lysate, Cell culture supernatant, EDTA Plasma, Heparin Plasma, Serum,
Reacts with:Human,
Assay type:Sandwich (quantitative),
Sensitivity:< 5 pg/mL,
Range:62.5 - 4000 pg/mL,
Assay Platform:Microplate

Product details:
Abcam's Human uPA (URK)
in vitro
ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the accurate quantitative measurement of Human uPA in cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA).
A uPA specific mouse monoclonal antibody has been precoated onto 96-well plates. Standards and test samples are added to the wells and incubated. A biotinylated detection polyclonal antibody from goat specific for uPA is then added followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex is added and unbound conjugates are washed away with PBS or TBS buffer. TMB is then used to visualize the HRP enzymatic reaction. TMB is catalyzed by HRP to produce a blue color product that changes into yellow after adding acidic stop solution. The density of yellow coloration is directly proportional to the Human uPA amount of sample captured in plate.
Plasminogen activator,urokinase (PLAU, uPA) converts plasminogen to plasmin. Plasmin is involved in processing of amyloid precursor protein and degrades secreted and aggregated amyloid-beta, a hallmark of Alzheimer disease (AD). Urokinase has a molecular mass of about 54 kD and is composed of 2 disulfide-linked chains, A and B, of molecular masses 18 kD and 33 kD, respectively. It localized on 10q24. uPA facilitates cell migration by localizing proteolisys on the cell surface and by inducing intracellular signalling pathways. In human vascular smooth muscle cell (VSMC), uPA stimulates migration via the uPA receptor (uPAR) signalling complex containing TYK2 and phosphatidylinositol 3-kinase (PI3-K).

Properties and Storage Information:
Shipped at conditions-Blue Ice, Appropriate short-term storage conditions--20°C, Appropriate long-term storage conditions--20°C, Storage information--20°C

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
Urokinase also known as urokinase-type plasminogen activator (uPA) is a serine protease with a molecular mass of approximately 54 kDa. It is expressed in various tissues including the kidneys liver and blood vessels. Urokinase initially forms as pro-urokinase an inactive precursor that can convert into the active enzyme. Researchers often use assays like the direct assay to measure urokinase activity due to its role in breaking down fibrin and modulating cell adhesion and migration.
Biological function summary
Something particularly interesting about urokinase is its role in converting plasminogen to plasmin a critical enzyme in the process of fibrinolysis. Moreover it is part of a larger enzymatic complex involving the urokinase receptor (uPAR) which localizes plasminogen activation to cell surfaces. This complex mediates extracellular matrix degradation aiding in important cellular processes like tissue remodeling and wound healing.
Pathways
Urokinase plays a critical role in the fibrinolytic pathway which involves the breakdown of blood clots. It also interacts with the extracellular matrix pathway by activating plasminogen which can degrade matrix components. In these pathways urokinase closely interacts with proteins such as plasmin and its inhibitor plasminogen activator inhibitor-1 (PAI-1) which regulate the activity and localization of proteolytic events.
Urokinase is strongly linked to conditions such as deep vein thrombosis and cancer metastasis. Its overexpression or dysregulation often leads to excessive tissue degradation influencing metastasis progression. Urokinase is connected to the urokinase receptor (uPAR) in cancer facilitating cancer cell invasion and migration. Understanding its behavior in these contexts is critical for developing therapeutic strategies and targeting treatments against these diseases.