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- W4233187789 abstract "Differentiation of 3T3-F442A cells was accompanied by changes in cell morphology, decreased synthesis and assembly of actin and fibronectin. The network of microfilament stress fibers detected with NBD-phallacidin was altered during adipose conversion of 3T3-F442A cells. Parallel to this, the disappearance of fibrillar bundles of extracellular matrix fibronectin was observed by immunofluorescence staining. The pericellular fibronectin content, detected by immunoblotting, strongly diminished during the differentiation process. An altered rate of biosynthesis of both proteins was also measured by [35S]-methionine pulse-labeling and immunoprecipitation. A 4–5-fold decrease in cellular fibronectin synthesis was observed in adipocytes compared to control preadipocytes. Conversely, non-differentiating 3T3-C2 control cells did not reorganize either the cytoskeletal architecture or the extracellular matrix fibronectin in the resting state. These results suggest that the decreased rate of biosynthesis of cell-associated fibronectin is correlated with that of actin. Moreover, both events can essentially be ascribed to differentiation." @default.
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- W4233187789 date "1989-01-01" @default.
- W4233187789 modified "2023-10-14" @default.
- W4233187789 title "Decreased biosynthesis of actin and cellular fibronectin during adipose conversion of 3T3-F442A cells. Reorganization of the cytoarchitecture and extracellular matrix fibronectin" @default.
- W4233187789 doi "https://doi.org/10.1016/0248-4900(89)90177-9" @default.
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