PI3K/AKT activity is indispensable for FGF7-triggered resistance to tamoxifen. T47D cells were grown in matrigel and treated with FGF7 (10 ng/ml) and/or tamoxifen (1 μM) with/without PI3K/AKT inhibitor (LY294002, 2 μM). Representative pictures were taken after 14 days of growth; colonies were measured and statistically analyzed with ImageJ. Scale represents 100 μm, **P ≤ .001, n = 3.
1Ratios to control/non-treated cells.