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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

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

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.[1]

References

  1. Metabotropic P2Y1 receptors inhibit P2X3 receptor-channels in rat dorsal root ganglion neurons. Gerevich, Z., Müller, C., Illes, P. Eur. J. Pharmacol. (2005) [Pubmed]
 
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