Hepatocyte growth factor (HGF) belongs to the plasminogen subfamily of S1 peptidases but has no detectable protease activity. HGF is also known as hepapoietin A, hepatopoeitin A, scatter factor (SF), fibroblast-derived tumor cytotoxic factor (F-TCF), HGFB, HPTA, and deafness, autosomal recessive 39 (DFNB39). It is secreted as a single inactive polypeptide that is cleaved by a serine protease (known as hepatocyte growth factor activator, or HGFA) into a 69 kDa alpha chain and 34 kDa beta chain. Active HGF is a heterodimer between the alpha and beta chains, linked by a disulfide bond. HGF acts as a multifunctional cytokine in cells of epithelial origin. It regulates cell growth, motility, and morphogenesis by binding to the c-Met receptor and activating a tyrosine kinase signaling cascade. HGF also plays a role in tissue regeneration, angiogenesis, and tumorigenesis.
This kit is a solid-phase sandwich ELISA using two antibodies that are highly specific to human HGF protein; one is precoated on the ELISA plate and the other is HRP-conjugated. This assay kit can be used to measure soluble human HGF protein in serum, EDTA plasma, or cell culture supernatants.