Fig. 3. Orai1 expression was upregulated by tunicamycin in HUVECs.

HUVECs were treated with tunicamycin (0.25, 0.5, 1, 2 µg/ml respectively). Twenty-four hours later, the expression of Orai1 was determined by western blotting. ^*p < 0.05 vs. control; n = 4.