Title : 5-HT1B receptors modulate release of [3H]dopamine from rat striatal synaptosomes: further evidence using 5-HT moduline, polyclonal 5-HT1B receptor antibodies and 5-HT1B receptor knock-out mice.

Pub. Date : 2000 Jan

PMID : 10651141






7 Functional Relationships(s)
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1 Preincubation of rat striatal synaptosomes with a specific polyclonal 5-HT1B receptor antibody also resulted in a significant attenuation of the inhibitory effect of CP93,129 on K+-evoked overflow of [3H]DA. Tritium 5-hydroxytryptamine (serotonin) receptor 1B Mus musculus
2 In conclusion, the results show that a non-competitive antagonist of the 5-HT1B receptor concentration-dependently decreases the maximal inhibitory effect of a 5-HT1B receptor agonist on the synaptosomal K+-evoked release of [3H]DA in striatum. Tritium 5-hydroxytryptamine (serotonin) receptor 1B Mus musculus
3 In conclusion, the results show that a non-competitive antagonist of the 5-HT1B receptor concentration-dependently decreases the maximal inhibitory effect of a 5-HT1B receptor agonist on the synaptosomal K+-evoked release of [3H]DA in striatum. Tritium 5-hydroxytryptamine (serotonin) receptor 1B Mus musculus
4 Moreover, a specific antibody raised against the receptor and particularly directed against a region of the receptor protein involved in signal transduction, namely the coupling with the G-protein, also antagonizes the inhibitory effect of the stimulation of 5-HT1B receptor on the release of [3H]DA. Tritium 5-hydroxytryptamine (serotonin) receptor 1B Mus musculus
5 Ultimately the disruption of 5-HT1B receptor gene in 5-HT1B knock-out mice leads to a total suppression of the effect of 5-HT1B receptor agonists on [3H]DA release. Tritium 5-hydroxytryptamine (serotonin) receptor 1B Mus musculus
6 Ultimately the disruption of 5-HT1B receptor gene in 5-HT1B knock-out mice leads to a total suppression of the effect of 5-HT1B receptor agonists on [3H]DA release. Tritium 5-hydroxytryptamine (serotonin) receptor 1B Mus musculus
7 Ultimately the disruption of 5-HT1B receptor gene in 5-HT1B knock-out mice leads to a total suppression of the effect of 5-HT1B receptor agonists on [3H]DA release. Tritium 5-hydroxytryptamine (serotonin) receptor 1B Mus musculus