Detection Method:Sandwich
Test principle:This assay employs a two-site sandwich ELISA to quantitate VEGFA in samples. An antibody specific for VEGFA has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyVEGFA present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for VEGFA is added to the wells. After washing, Streptavidin conjugated Horseradish Peroxidase (HRP) is added to the wells. Following a wash to remove any unbound avidin-enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of VEGFA bound in the initial step. The color development is stopped and the intensity of the color is measured.
Product Overview:VEGF-A is a glycosylated mitogen that specifically acts on endothelial cells and has various effects, including mediating increased vascular permeability, inducing angiogenesis, vasculogenesis and endothelial cell growth, promoting cell migration, and inhibiting apoptosis. Alternatively spliced transcript variants, encoding either freely secreted or cell-associated isoforms, have been characterized. VEGF is a chemical signal produced by cells that stimulates the growth of new blood vessels. The most important member is VEGF-A. Other members are Placenta growth factor (PlGF), VEGF-B, VEGF-C and VEGF-D. The latter ones were discovered later than VEGF-A, and, before their discovery, VEGF-A was called just VEGF.