A, FoxO1 expression after siRNA knockdown MCF-7 cells. B, qPCR analysis of 1 µM Tam-induced IGFBP-1 transcription after FoxO1 knockdown in MCF-7 cells. C, Tam-dependent inhibition of IGF-1-stimulated phospho-AKT accumulation is decreased after FoxO1 knockdown in MCF-7 cells. D, CREB expression and accumulation of p-CREB after 1 µM Tam treatment after FoxO1 knockdown in MCF-7 cells. E, Relative qPCR analysis of FoxO1 transcription in 1 μM Tam-treated MCF-7 cells. * = p < 0.05 and results are average or representative of three independent experiments. Error bars are SEM.