Key result
In rat pulmonary arteries, UTP elicits vasodilation via P2Y2 receptors, UDP acts at P2Y6 receptors, and ADP acts at P2Y1 receptors, whereas UTP- and ATP-evoked vasoconstriction is not mediated by P2Y2 receptors.
Why the study?
Pulmonary vascular tone is modulated by nucleotides, but which P2 receptors mediate these actions remains largely unclear.
This study identifies specific P2Y receptor subtypes responsible for nucleotide-evoked pulmonary vasodilation, advancing the understanding of pulmonary vascular tone regulation.
No takes yet. Share an insight, caveat, or question.
Findings in rat models warrant caution before human application; extends P2Y receptor mapping in pulmonary vasculature.
Dales et al. (2022) studied Normal physiological state (pulmonary vascular tone). Subtype-selective P2Y receptor antagonists vs. Control responses in the absence of antagonists was evaluated on Inhibition of nucleotide-evoked vasodilation and vasoconstriction. In rat pulmonary arteries, UTP elicits vasodilation via P2Y2 receptors, UDP acts at P2Y6 receptors, and ADP acts at P2Y1 receptors, whereas UTP- and ATP-evoked vasoconstriction is not mediated by P2Y2 receptors.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: