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. 2023 Feb 7;24(4):3259. doi: 10.3390/ijms24043259

Table 7.

Electrophysiological features of the endothelial ICRAC-like current.

Endothelial Cell Type ISOC: Electrophysiological and Pharmacological Features Agonist Used to Reduce the [Ca2+]ER Intracellular Ca2+ Buffering Reference
BAECs IR, Erev ≈ +6 mV, permeable to Na+, Ca2+ and Ba2+, PCa/PNa > 10, single-channel conductance: 5 pS (symmetrical Na2SO4), inhibited by 200 µM La3+ tBHQ 2 mM CaCl2, 5 mM BAPTA [44,189]
rPAECs Slight IR, Erev ≈ +30/+40 mV, anomalous mole fraction behaviour, inhibited by 50 µM La3+ Extracellular application of thapsigargin [Ca2+]i buffered at 100 nm/L [51,69,86,140,220,221]
MAECs IR, Erev ≈ +40 mV, Na+ permeability anomalous mole fraction behaviour, PCa/PNa ≈ 160, inhibited by 1 µM La3+ Intracellular dialysis of InsP3 and extracellular application of tBHQ 12 mM BAPTA [87]
EA.hy926 IR, Erev ≈ −7 mV, anomalous mole fraction behaviour, Ca2+-dependent inactivation, inhibited by 10 µM La3+ Extracellular application of thapsigargin No CaCl2, no BAPTA/EGTA [46]

Abbreviations: BAECs: bovine aortic endothelial cells; IR: inward rectification; MAECs: mouse aortic endothelial cells; PCa/PNa: Ca2+/Na+ permeability ratio; rPAECs: rat pulmonary artery endothelial cells.