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Hepatocyte growth factor/scatter factor (HGF/SF) is a pleiotropic growth factor that promotes proliferation, motility, survival, and differentiation. HGF binds and promotes the dimerization and activation of the receptor tyrosine kinase c-MET, and stimulates PI3K/AKT, FAK, JNK, and ERK1/2 signaling (Organ & Tsao. Ther Adv Med Oncol, 2011). HGF stimulates migration of cells during embryogenesis, induces cell motility and scattering of epithelial cells, and regulates epithelial-mesenchymal transition. It is a chemoattractant for motor neurons, and regulates the development of sensory, sympathetic, parasympathetic, and cortical neurons as well as the proliferation of oligodendrocytes and glial development. Additionally, HGF is cytoprotective and regulates liver growth and regeneration (Nakamura et al. J Gastroenterol Hepatol, 2011).
Subtype
Cytokines
Alternative Names
DFNB39, F-TCF, Fibroblast-derived tumor cytotoxic factor, Hepapoietin A, HPTA, Lung fibroblast-derived mitogen, Scatter factor, SF
Figure 1. Biological Activity and Molecular Mass of Human Recombinant HGF (E. coli-expressed), ACF
(A) The biological activity of Human Recombinant HGF (E.coli-expressed), ACF was tested by its ability to induce MAP/ERK signaling in transfected HEK293T cells. Cells were treated with a serial dilution of HGF for 6 hours, and the activity was quantified by a luciferase reporter assay. The EC50 is defined as the effective concentration of the growth factor at which MAP/ERK activity is at 50% of maximum. The EC50 in the above example is ≤ 49.6 pM (0.99 ng/mL).
(B) 7 μg of Human Recombinant HGF (E.coli-expressed), ACF was resolved with SDS-PAGE under reducing (+) and non-reducing (-) conditions and visualized by Coomassie Blue staining. Human Recombinant HGF has a predicted molecular mass of 21 kDa in reducing conditions and 18 kDa in non-reducing conditions.