Description
Principle of the Assay: This kit was based on sandwich enzyme-linked immune-sorbent assay technology. Anti-NT-3 polyclonal antibody was pre-coated onto 96-well plates. And the biotin conjugated anti-NT-3 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 NT-3 amount of sample captured in plate. Read the O.D. absorbance at 450nm in a microplate reader, and then the concentration of NT-3 can be calculated.
Background: Nerve growth factor (NGF) is a polypeptide involved in the regulation of growth and differentiation of sympathetic and certain sensory neurons. NGF consists of 3 types of subunits, alpha, beta and gamma, which specifically interact to form a 7S, approximately 130,000-molecular weight complex. It is mainly expressed in Sertoli and interstitial cells. The proforms of NGF are secreted and cleaved extracellularly by the serine protease plasmin and by selective matrix metalloproteinases. NGF is important for the growth, maintenance, and survival of certain target neurons (nerve cells). It also functions as a signaling molecule