Figure 5. APS activates AMPK/BECN1 signaling in RT4 and T24 cells. (A) The Western blot results showed that APS significantly increased the phosphorylation levels of AMPK and BECN1 in RT4 and T24 cells. IF staining showed that APS induced the formation of the BECN1-xCT complex in RT4 (B) and T24 (C) cells (Bar represents 10 μm, 40 × magnification). **p < 0.01, ***p < 0.001 vs. Con.