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Induction of Tyrosine Phosphorylation and Translocation of Ezrin by Hepatocyte Growth Factor/Scatter Factor (HGF/SF)

https://doi.org/10.1006/bbrc.1995.2877Get rights and content

Abstract

Ezrin is a member of the TERM family and is a key protein in cytoplasmic membrane-cytoskeleton interactions; This study showed that hepatocyte growth factor/scatter factor (HGF/SF), a cytokine known to regulate motility, morphogenesis and growth of cells, stimulated the tyrosine phosphorylation of ezrin in a human colon epithelial cell line, HT115. After HGF/SF stimulation, ezrin translocated from the cytosol and generalised membrane to the areas of ruffled membrane as visualised by indirect immunofluorescent and immunogold electron microscopy. This effect was inhibited by genistein, a tyrosine kinase inhibitor, It is concluded that HGF/SF induces ezrin translocation by stimulation of its tyrosine phosphorylation and that this plays a key role in HGF/SF induced membrane ruffling.

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