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Oncogene. 2013 Apr 4;32(14):1811-20. doi: 10.1038/onc.2012.197. Epub 2012 Jun 4.

The aryl hydrocarbon receptor regulates focal adhesion sites through a non-genomic FAK/Src pathway.

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INSERM UMR-S 747, Toxicologie Pharmacologie et Signalisation Cellulaire, Paris, France.


The aryl hydrocarbon receptor (AhR) is commonly described as a transcription factor, which regulates xenobiotic-metabolizing enzymes. Recent studies have suggested that the binding of ligands to the AhR also activates the Src kinase. In this manuscript, we show that the AhR, through the activation of Src, activates focal adhesion kinase (FAK) and promotes integrin clustering. These effects contribute to cell migration. Further, we show that the activation of the AhR increases the interaction of FAK with the metastatic marker, HEF1/NEDD9/CAS-L, and the expression of several integrins. Xenobiotic exposure, thus, may contribute to novel cell-migratory programs.

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