8-Hydroxy-DPAT hydrobromide - CAS 76135-31-4
Category: Inhibitor
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Molecular Formula:
C16H25NO.HBr
Molecular Weight:
328.29
COA:
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Targets:
5-HT Receptor
Description:
8-Hydroxy-DPAT hydrobromide is a selective 5-HT1A agonist with moderate affinity for 5-HT7 receptors (pKi = 6.6 at the human 5-HT7 receptor expressed in HEK 293 cells).
Brife Description:
5-HT1A receptor agonist
Purity:
≥98% by HPLC
Synonyms:
(±)-8-Hydroxy-2-dipropylaminotetralin hydrobromide
MSDS:
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InChIKey:
BATPBOZTBNNDLN-UHFFFAOYSA-N
InChI:
InChI=1S/C16H25NO.BrH/c1-3-10-17(11-4-2)14-9-8-13-6-5-7-16(18)15(13)12-14;/h5-7,14,18H,3-4,8-12H2,1-2H3;1H
Canonical SMILES:
CCCN(CCC)C1CCC2=C(C1)C(=CC=C2)O.Br
1.The potent activity of the 5-HT1A receptor agonists, S 14506 and S 14671, in the rat forced swim test is blocked by novel 5-HT1A receptor antagonists.
Schreiber R;Brocco M;Gobert A;Veiga S;Millan MJ Eur J Pharmacol. 1994 Dec 27;271(2-3):537-41.
The high efficacy methoxynaphtylpiperazine 5-HT1A receptor agonists, S 14506 (1-[2-(4-fluorobenzoylamino)ethyl]-4-(7-methoxynaphtyl)piper azine) and S 14671 (1-[2-(2-thenoylamino)ethyl]-4[1-(7-methoxynaphtyl]piperazin e), potently reduced the duration of immobility in the forced swimming test in rats [minimal effective dose (MED): 0.01 mg/kg, s.c., in each case]; in contrast, the prototypic 5-HT1A receptor agonist, 8-OH-DPAT [8-hydroxy-2-(di-n-propylamino)tetralin hydrobromide], was much less potent (MED: 0.63 mg/kg). The action of S 14671 (0.16 mg/kg) was completely blocked by the potent 5-HT1A receptor antagonist, SDZ 216-525 (4-(4-[4-(1,1,3-trioxo-2H-1,2-benzoisothiazol-2- yl)butyl]-1-piperazinyl)1H-indole-2-carboxylate) (0.63 mg/kg) and by the novel, selective 5-HT1A receptor antagonist, (+)-WAY 100,135 (N-tertiobutyl-3-[4-(2-methoxyphenyl)piperazinylphenyl propanamide): the effect of the latter was expressed dose dependently (Inhibitory Dose50: 35 mg/kg). Similarly, in the presence of (+)-WAY 100,135, S 14506 (0.63 mg/kg) failed to reduce immobility. Pretreatment with parachlorophenylalanine (3 x 300 mg/kg per day, i.p.), which profoundly depleted cerebral pools of 5-HT, modified neither baseline immobility nor the actions of S 14506 and S 14671.
2.Serotonergic modulation of GABAergic and glutamatergic synaptic transmission in mechanically isolated rat medial preoptic area neurons.
Lee JJ;Hahm ET;Lee CH;Cho YW Neuropsychopharmacology. 2008 Jan;33(2):340-52. Epub 2007 Mar 28.
The medial preoptic area (MPOA) of the hypothalamus is critically involved in the regulation of male sexual behavior and has been implicated in several homeostatic processes. Serotonin (5-hydroxytryptamine, 5-HT) inhibits sexual behavior via effects in the MPOA, where there are high densities of 5-HT(1A) and 5-HT(1B) receptor subtypes. We used whole-cell recordings under voltage-clamp conditions to investigate the serotonergic modulation of gamma-aminobutyric acid (GABA)ergic and glutamatergic synaptic transmission in mechanically dissociated rat MPOA neurons with native presynaptic nerve endings. Spontaneous GABAergic miniature inhibitory postsynaptic currents (mIPSCs) in the MPOA were completely blocked by bicuculline. Serotonin reversibly reduced the GABAergic mIPSC frequency without affecting the mean current amplitude. Serotonergic inhibition of mIPSC frequency was mimicked by (+/-)-8-hydroxy-2-dipropylaminotetralin hydrobromide, a specific 5-HT(1A) receptor agonist, and blocked by 1-(2-methoxyphenyl)-4-[4-(2-phthalimido)butyl] piperazine hydrobromide, a specific 5-HT(1A) receptor antagonist. 6-Cyano-7-nitroquinoxaline-2,3-dione completely blocked spontaneous glutamatergic miniature excitatory postsynaptic currents (mEPSCs) in the MPOA.
3.Dopamine and serotonin modulate the onset of metamorphosis in the ascidian Phallusia mammillata.
Zega G;Pennati R;Groppelli S;Sotgia C;De Bernardi F Dev Biol. 2005 Jun 1;282(1):246-56.
Neurotransmitters play an important role in larval metamorphosis in different groups of marine invertebrates. In this work, the role of dopamine and serotonin during metamorphosis of the ascidian Phallusia mammillata larvae was examined. By immunofluorescence experiments, dopamine was localized in some neurons of the central nervous system and in the adhesive papillae of the larvae. Dopamine and serotonin signaling was inhibited by means of antagonists of these neurotransmitters receptors (R(+)-SCH-23390, a D(1) antagonist; clozapine, a D(4) antagonist; WAY-100635, a 5-HT(1A) antagonist) and by sequestering the neurotransmitters with specific antibodies. Moreover, dopamine synthesis was inhibited by exposing 2-cell embryos to alpha-methyl-l-tyrosine. Dopamine depletion, obtained by these different approaches, caused early metamorphosis, while serotonin depletion delayed the onset of metamorphosis. The opposite effects were obtained using agonists of the neurotransmitters: lisuride, a D(2) agonist, inhibited metamorphosis, while DOI hydrochloride and 8-OH-DPAT HBr, two serotonin agonists, promoted it. So, it is possible to suppose that dopamine signaling delayed metamorphosis while serotonin signaling triggers it.
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CAS 76135-31-4 8-Hydroxy-DPAT hydrobromide

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