Fig. 1. Pharmacological inhibition of Panx1 reduces vasoconstriction and ATP release selectively upon activation of α1AR.
(A to D) Effect of 10Panx1 (300 μM) and probenecid (2 mM) on contractile response of pressurized TDAs stimulated with the indicated concentrations of agonists. n = 5to7. *P < 0.05 compared to untreated response (black curves) using two-way analysis of variance (ANOVA). (E) Relative ATP released from intact TDAs in response to phenylephrine (PE) in the presence or absence of 10Panx1 (300 μM), serotonin (5-HT), or endothelin-1 (ET-1). Data are presented as a percent increase in ATP concentration from unstimulated conditions. The insert shows an image of a TDA in a well of a 96-well dish. n = 5 to 11. *P < 0.05 compared to phenylephrine using a Kruskal-Wallis test.