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- W2072359645 abstract "Hepatocyte growth factor (HGF) exerts mitogenic and motogenic effects in different cell types. In the epithelial cell line mHepR1 we found that HGF induced pronounced alterations in cell morphology and promoted cell adhesion and spreading. To analyze the mechanisms how HGF affects these integrin mediated functions we studied the physical linkage of integrins with the cytoskeleton. First we found that HGF increased the expression of different integrin subunits in subconfluent cells and influenced the distribution of integrins on the cell surface. To address the physical association of integrins with the cytoskeleton we analyzed Triton X-100-extracted cell fractions using flow cytometry. Here we show that cultivation of the cells with HGF for 24 h prior to integrin cross-linking significantly enhanced the cytoskeletal anchorage of integrins. To further find out whether HGF directly induces an integrin-cytoskeleton link without subsequent cross-linking we added HGF to suspended cells but failed to detect cytoskeletally immobilized integrins in the detergent-insoluble cell fraction which could be related to the absence of a calcium response induced by HGF. Overall, the results indicate that HGF promotes the physical linkage of integrins to the cytoskeleton which requires additional stimulation of integrins." @default.
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- W2072359645 date "1998-09-01" @default.
- W2072359645 modified "2023-09-27" @default.
- W2072359645 title "Hepatocyte Growth Factor Enables Enhanced Integrin–Cytoskeleton Linkage by Affecting Integrin Expression in Subconfluent Epithelial Cells" @default.
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- W2072359645 doi "https://doi.org/10.1006/excr.1998.4143" @default.
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