ArticleMolecular and cellular biochemistry2003
Regulation of the expression and activity of beta1,4-galactosyltransferase I by focal adhesion kinase.
Article in Molecular and cellular biochemistry, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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8 authors at 1 institution in 1 country.
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Abstract
beta1,4-Galactosyltransferase I (GalT) participates in both glycoconjugates and cellular interactions. GalT's role in lamellipodia formation and cell migration on laminin is associated with a transient phosphorylation of focal adhesion kinase (FAK) and a consequent reorganization of the actin cytoskeleton and focal adhesions. We transfected wild type FAK and different FAK mutants into NIH3T3 cell line, measured GalT gene expression by Northern blot hybridization, and evaluated its activity. It was found that wtFAK and FAKY576F up-regulated GalT gene expression and its surface activity, while FAKY397F down-regulated them. At the same time, we used ricinus communis agglutinin (RCA)-I lectin staining to demonstrate its binding reactions. We found that wtFAK and FAKY576F bound stronger, while FAKY397F bound weaker than the control. By flow cytometry analysis, it was found that FAK promoted G1/S transition and enhanced the expression of cyclin D1 while FAKY397F inhibited these steps compared with the control NIH3T3 cells. G1/S checkpoint regulation proteins control GalT mRNA transcription. The results indicate that FAK regulated the expression of GalT and its activity in NIH3T3 cells may contribute to the effect of FAK on the cell-cycle.
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