trovafloxacin, ciprofloxacin, levofloxacin, difloxacin, tosufloxacin,
carbenoxolone, probenecid, Y-27632, blebbistatin, cytochalasin D, purified
nucleotides, suramin and dexamethasone were obtained from Sigma-Aldrich. 7-AAD
and TO-PRO-3 were purchased from Invitrogen. annexin V-FITC, CD8a-PE (clone
53-6.7), CD4-PE-Cy7 (clone RM4-5) and anti-mouse CD16/CD32 (clone 93) were
obtained for eBioscience. Other reagents were obtained as follows: anti-Fas
(clone CH11, Millipore), z-VAD-FMK (Enzo Life Sciences), Q-VD-OPH (SM
Biochemicals) and recombinant apyrase (New England Biolabs).