We found that only Stim1 (Figure 11A) was significantly (p<0.05) up-regulated in BC-ECFCs as compared to N-ECFCs, while there was no remarkable difference in the pattern of expression of Stim2 (Figure 11B), Orai1 (Figure 11C), Orai2 (Figure 11D) and Orai3 (Figure 11E). Here, STIM1 is linked to breast cancer.