Effect of local microapplication of serotonergic drugs on membrane currents of Paracentrotus lividus early embryos

Effect of local microapplication of serotonergic drugs on membrane currents of Paracentrotus... It was shown that local application of agonists of the 3rd type receptors 5-HTQ and quipazine into the interblastomere cleft of Paracentrotus lividus embryos evoked specific membrane currents. At the same time, ligands of 5-HT3-receptors specifically affected the cleavage patterns of half-embryos, i.e., imitated or avoided the interblastomere signal. In the view of the data obtained, we discuss a more precise concept of protosynapse, where the distribution of membrane serotonin receptors is restricted to the period of blastomere formation during cleavage and localized in the area of interblastomere contact. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Effect of local microapplication of serotonergic drugs on membrane currents of Paracentrotus lividus early embryos

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2007 by Pleiades Publishing, Inc.
Subject
Life Sciences; Developmental Biology; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1134/S1062360407040030
Publisher site
See Article on Publisher Site

Abstract

It was shown that local application of agonists of the 3rd type receptors 5-HTQ and quipazine into the interblastomere cleft of Paracentrotus lividus embryos evoked specific membrane currents. At the same time, ligands of 5-HT3-receptors specifically affected the cleavage patterns of half-embryos, i.e., imitated or avoided the interblastomere signal. In the view of the data obtained, we discuss a more precise concept of protosynapse, where the distribution of membrane serotonin receptors is restricted to the period of blastomere formation during cleavage and localized in the area of interblastomere contact.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Aug 10, 2007

References

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