Molecular identification of P2X receptors in vascular smooth muscle cells from rat anterior, posterior, and basilar arteries

Our work therefore identified that in major arteries of rat cerebral circulation VSMCs express only P2X1 and P2X4 receptors subunits. We can propose that these P2X receptor subunits participate in functional P2X receptor structures mediating ATP-evoked stimulatory responses in cerebral vascular myocytes in vivo.