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Hepatocyte growth factor (HGF) or scatter factor (SF) is a paracrine cellular growth, motility and morphogenic factor. It is secreted by mesenchymal cells and targets and acts primarily upon epithelial cells and endothelial cells , but also acts on haemopoietic progenitor cells and T cells .
Hepatocyte growth factor activator is a protein that in humans is encoded by the HGFAC gene. [5] [6] [7]The protein encoded by this gene, belongs to peptidase family S1. It is first synthesized as an inactive single-chain precursor before being activated to a heterodimeric form by endoproteolytic processing.
Human hepatocyte growth factor (HGF) is an 80kD [1] pleiotropic protein that is endogenously produced by a variety of cell types from the mesenchymal cell lineage (such as cardiomyocytes and neurons). [4] It is produced and proteolytically cleaved to its active state in response to cellular injury or during apoptosis.
Two such proteins that mediate the TGFβ pathway include SARA (the SMAD anchor for receptor activation) and HGS (Hepatocyte growth factor-regulated tyrosine kinase substrate). SARA is present in an early endosome which, by clathrin-mediated endocytosis, internalizes the receptor complex. [8] SARA recruits an R-SMAD.
A growth factor is a naturally occurring substance capable of stimulating cell proliferation, wound healing, and occasionally cellular differentiation. [1] Usually it is a secreted protein or a steroid hormone .
Hepatocyte growth factor (HGF) is a mitogen and insulin tropic agent for the β cell. Inadequate β-cell mass can lead to insulin insufficiency and diabetes. During times of prolonged metabolic demand for insulin, the endocrine pancreas can respond by increasing β-cell mass, both by increasing cell size and by changing the balance between β ...
Some of President-elect Donald Trump’s most vulnerable Cabinet picks are racing to smooth out or overwrite past statements before contentious Senate confirmation fights.
Michalopoulos has contributed to the field of pathology through his work on liver function, regeneration, and carcinogenesis.He has utilized various experimental models, such as hepatocyte cultures, hepatic organoids, established cell lines, studies on liver regeneration after partial hepatectomy, examinations of regeneration through progenitor cell pathways, investigations into liver ...
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