Casein Kinase

Inhibition of PI3K, ERK and mTOR prevents the activation of S6K1 and S6 induced by suppression of PKD1 activity. A549 cells were incubated in the absence (-) or presence of either 5 uM Kb or 5 uM Kb and 20 uM LY294002 or 5 uM Kb and 10 uM BKM120 (as indicated) for 1 h prior to stimulation of cells with 50 nM PMA for 30 min and 1 h.

The cytoplasmic and nuclear proteins were separated and the protein expression levels were determined by performing western blotting. LY364947 (1 uM), which is a potent ATP-competitive inhibitor of TGF-βRI, was used as the positive control. GAPDH and PARP were used as cytosolic and nuclear markers, respectively.

KIF3A knockdown promotes both ligand secretion and intracellular signalling of the Wnt/β-catenin pathway in NSCLC cell lines. (c,d) SuperTOPFlash reporter assay to examine the effect of KIF3A knockdown on signalling pathway activation by autocrine or exogenous WNTs in A549 and SW900 cell lines. A549 and SW900 cells were incubated with DMSO or IWP-2 (30 μ M) for 48 h, and then treated with BSA or WNT3A (100 ng/ml) for additional 24 h. Luciferase reporter activity was calculated by dividing TOP/RL ratio by FOP/RL ratio (n = 3; error bars indicate SEM; p-value was determined by one-way ANOVA). *P < 0.05; **P < 0.01.

Western blot of signaling effects. 48 hrs after transfection cells were serum‐starved for 12 h before stimulation with Wnt5a for 30 min or 120 min (200 ng/ml) in the presence or absence of casein kinase inhibitor D4476 (100 μM).

Inhibition of PI3K, ERK and mTOR prevents the activation of S6K1 and S6 induced by suppression of PKD1 activity. A549 cells were incubated in the absence (-) or presence of either 5 uM Kb or 5 uM Kb and 20 uM LY294002 or 5 uM Kb and 10 uM BKM120 (as indicated) for 1 h prior to stimulation of cells with 50 nM PMA for 30 min and 1 h.

The cytoplasmic and nuclear proteins were separated and the protein expression levels were determined by performing western blotting. LY364947 (1 uM), which is a potent ATP-competitive inhibitor of TGF-βRI, was used as the positive control. GAPDH and PARP were used as cytosolic and nuclear markers, respectively.

KIF3A knockdown promotes both ligand secretion and intracellular signalling of the Wnt/β-catenin pathway in NSCLC cell lines. (c,d) SuperTOPFlash reporter assay to examine the effect of KIF3A knockdown on signalling pathway activation by autocrine or exogenous WNTs in A549 and SW900 cell lines. A549 and SW900 cells were incubated with DMSO or IWP-2 (30 μ M) for 48 h, and then treated with BSA or WNT3A (100 ng/ml) for additional 24 h. Luciferase reporter activity was calculated by dividing TOP/RL ratio by FOP/RL ratio (n = 3; error bars indicate SEM; p-value was determined by one-way ANOVA). *P < 0.05; **P < 0.01.

Western blot of signaling effects. 48 hrs after transfection cells were serum‐starved for 12 h before stimulation with Wnt5a for 30 min or 120 min (200 ng/ml) in the presence or absence of casein kinase inhibitor D4476 (100 μM).