Figure 2. Increased expression levels of STIM1 and SOCE activity in human prostate cancer cells when compared with hyperplasia cells.
A. Western blotting analysis of STIM1 and ORAI1 in BPH-1, LNCaP, DU145 and PC3 cells. B. Comparison of SOCE activity in BPH-1, LNCaP, DU145 and PC3 cells. C. Statistical results of SOCE activities in human prostate cancer cells, represented as increases in the F340/F380 ratio over baseline values (ΔF340/F380) after extracellular Ca2+ application. D. Western blotting was used to confirm overexpression of STIM1 and/or ORAI1 genes in DU145 and PC3 cells. E. SOCE activities in DU145 cells with STIM1-YFP and /or ORAI1 overexpression and the DU145-YFP control. F. Increased SOCE activity in DU145-STIM1-YFP and DU145 -ORAI1-STIM1-YFP cells and slightly increased SOCE activity in DU145-ORAI1 cells when compared with that of DU145-YFP control.
