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. 1983 Feb;143(2):456-61.
doi: 10.1016/0014-4827(83)90073-3.

Concurrent Modulation of Cell Surface Fibronectin and Adhesion to Fibronectin in Hepatoma Cells

Concurrent Modulation of Cell Surface Fibronectin and Adhesion to Fibronectin in Hepatoma Cells

C E Schwartz et al. Exp Cell Res. .

Abstract

Rat hepatoma cells grown in vitro were poorly adhesive to plastic surfaces coated with fibronectin and lacked cell surface fibronectin matrix. They synthesized soluble fibronectin into the medium. The cell surface fibronectin matrix and the ability to attach to fibronectin-coated surface were restored in the 7777 cells upon passage as a tumor in rats and by coculturing these cells with normal liver-derived cells in vitro. Fibronectin matrix and the ability of cells to attach to fibronectin were thus modulated in a coordinated fashion, suggesting that the formation of a cell surface fibronectin matrix is dependent on the cell surface property that enables cells to interact with fibronectin.

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