Description
Principle of the Assay: This kit was based on sandwich enzyme-linked immune-sorbent assay technology. Anti-Fibronectin polyclonal antibody was pre-coated onto 96-well plates. And the biotin conjugated anti-Fibronectin polyclonal antibody was used as detection antibodies. The standards, test samples and biotin conjugated detection antibody were added to the wells subsequently, and wash with wash buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with wash buffer. TMB substrates were used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the Fibronectin amount of sample captured in plate. Read the O.D. absorbance at 450nm in a microplate reader, and then the concentration of Fibronectin can be calculated.
Background: Fibronectin is a high-molecular weight (~440kDa) glycoprotein of the extracellular matrix, belongs to a family of high molecular weight glycoproteins that are present on cell surfaces, in extracellular fluids, connective tissues, and basement membranes. Two major forms of fibronectin exist: a plasma soluble form and a cellular form. It plays a major role in cell adhesion, growth, migration, and differentiation, and it is important for processes such as wound healing and embryonic development. Fibronectin has been implicated in carcinoma development, and also acts as a potential biomarker for radioresistance