Fig. 3 Digoxin inhibited the Nrf2 signaling in SW1990/Gem and Panc-1/Gem cells. (A–B) Effects of digoxin on the protein level of Nrf2 in SW1990/Gem and Panc-1/Gem cells. (C–D) Effects of digoxin on the protein level of Nrf2 in SW1990/Gem and Panc-1/Gem cells at different time points. (E–F) Immunostaining of endogenous Nrf2 in SW1990/Gem and Panc-1/Gem cells. All images were shown at ×200. Data were expressed as mean ± SD, and the results were representative of three independent experiments. Significant differences were indicated as **P < 0.01, ***P < 0.001 vs. control group. N.S., no significant.