Figure 3.
Effect of pannexin-1 inhibitors on TSPO ligands-induced ATP release. RBCs were incubated at 37 °C, 10% final haematocrit. Carbonexolone (CBX, 10 µM) or Probenecid (PBC, 10 µM) were added to human red blood cells (RBCs), alone or before the addition of 30 µM TSPO ligands (Ro5-4864, panel A; NCS1018, panel B; TRO19622, panel C) or adrenergic cocktail 3 V (panel D). Values are the ratio between extracellular ATP (ATPe) levels after and before the addition of different ligands. Results are expressed as means ± SEM and considered different from basal (vehicle, unstimulated) values when **p < 0.01, n = 7. When indicated, differences were significant compared to stimulated condition.