Abstract
There is increasing evidence that protein kinase CK2 is involved, among a wide variety of cellular processes, in the maintenance of mammalian cell morphology and cell polarity. Here, we show that in epithelial cells, a fraction of CK2 is associated to the plasma membrane and that this localization is controlled by cell-matrix interactions. In addition, inhibition of CK2 activity in mammary epithelial cells (MCF10A), using either the specific CK2 inhibitor TBB or siRNA-mediated CK2beta knockdown, induced differential phenotypes revealing an important role of this enzyme in epithelial cell morphology.
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