Are P2Y1 purinoceptors expressed in turkey erythrocytes?
Since the beginning of purinoceptor research turkey erythrocytes have been widely used as the model systems for studying the pharmacology of P2Y1 nucleotide receptors. In this report the statistical analysis of the activity parameters of several purinoceptor agonists and antagonists in the turkey erythrocytes and P2Y1 receptor transfected cells is presented. As a results of this analysis several differences in the ligand activity orders measured in these biological systems were found. These data indicate that the receptors expressed in turkey erythrocytes and P2Y1 transfected cells are probably not the same. Whether it has to do with co-expression of several purinoceptor subtypes in turkey erythrocytes or novel P2Y receptors needs the further investigation.
Sak
K
K
Institute of Chemical Physics, Tartu University, Estonia. sak@chem.ut.ee
D000244:Adenosine Diphosphate / Q000031:analogs & derivatives* / Q000494:pharmacology; D000255:Adenosine Triphosphate / Q000031:analogs & derivatives / Q000494:pharmacology; D000818:Animals; D004912:Erythrocytes / Q000187:drug effects / Q000378:metabolism*; D008024:Ligands; D058910:Purinergic P2 Receptor Agonists; D058919:Purinergic P2 Receptor Antagonists; D018048:Receptors, Purinergic P2 / Q000097:blood*; D058472:Receptors, Purinergic P2Y1; D013873:Thionucleotides / Q000494:pharmacology; D014162:Transfection; D014422:Turkeys / Q000097:blood*
D008024:Ligands; D058910:Purinergic P2 Receptor Agonists; D058919:Purinergic P2 Receptor Antagonists; D018048:Receptors, Purinergic P2; D058472:Receptors, Purinergic P2Y1; D013873:Thionucleotides; C030812:adenosine 5'-O-(2-thiodiphosphate); D000244:Adenosine Diphosphate; D000255:Adenosine Triphosphate; C010840:adenosine 3'-phosphate-5'-phosphate