Fluoxetine inhibits ATP-induced [Ca2+]i increase in PC12 cells by inhibiting both extracellular Ca2+ influx and Ca2+ release from intracellular stores

Therefore, we conclude that fluoxetine inhibits ATP-induced [Ca2+]i increases in PC12 cells by inhibiting both the influx of extracellular Ca2+ and the release of Ca2+ from intracellular stores without affecting IPs formation.