Send to

Choose Destination
See comment in PubMed Commons below
Eur J Pharmacol. 2005 Oct 3;521(1-3):34-8. Epub 2005 Sep 19.

Metabotropic P2Y1 receptors inhibit P2X3 receptor-channels in rat dorsal root ganglion neurons.

Author information

  • 1Rudolf-Boehm-Institute of Pharmacology and Toxicology, University of Leipzig, Haertelstrasse 16-18, D-04107 Leipzig, Germany.


Whole-cell patch-clamp recordings from cultured rat dorsal root ganglion neurons demonstrated that the P2Y1 receptor agonists adenosine 5'-O-2-thiodiphosphate (ADP-beta-S) and 2-methylthio adenosine 5'-diphosphate (2-MeSADP) inhibit the alpha,beta-methylene adenosine 5'-triphosphate (alpha,beta-meATP)-induced P2X3 receptor-currents. This effect could be antagonized by the wide-spectrum G protein blocker GDP-beta-S and the P2Y(1) receptor antagonist MRS 2179. The P2Y12,13 receptor antagonist AR-C6993MX and pertussis toxin, a blocker of Galphai/o, did not interact with the effect of ADP-beta-S. Hence, the results indicate that ADP-sensitive P2Y1 receptors of rat dorsal root ganglion neurons inhibit ionotropic P2X3 receptors via G protein-activation.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center