Over-expression of the p110beta but not p110alpha isoform of PI 3-kinase inhibits motility in breast cancer cells.


Phosphoinositide 3-kinase (PI 3-kinase) activity is required for growth factor-induced cytoskeletal regulation and cell migration. We previously found that in MTLn3 rat adenocarcinoma cells, EGF-stimulated induction of actin barbed ends and lamellipod extension specifically requires the p85/p110alpha isoform of PI 3-kinase. To further characterize signaling… (More)


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