Protein Information

Name 5 HT2
Synonyms 5 HT 2; 5 HT 2A; 5 HT2; 5 HT2A; 5 hydroxytryptamine (serotonin) receptor 2A; 5 hydroxytryptamine 2A receptor; 5 hydroxytryptamine receptor 2A; HTR 2…

Compound Information

Name strychnine
CAS strychnidin-10-one

Reference List

PubMed Abstract RScore(About this table)
8319089 Lewis DI, Sermasi E, Coote JH: Excitatory and indirect inhibitory actions of 5-hydroxytryptamine on sympathetic preganglionic neurones in the neonate rat spinal cord in vitro. Prog Neuropsychopharmacol Biol Psychiatry. 2009 Jun 15;33(4):596-604. Epub 2009 Mar 3.

The 5-HT-induced IPSPs were reversibly blocked by superfusion with strychnine, suggesting they were mediated by glycine.
The results suggest that the excitatory action of 5-HT on SPN is mediated via an atypical 5-HT2 receptor or a 5-HT1C-like receptor.
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12372564 Li H, Kang JF, Li YQ: Serotonin potentiation of glycine-activated whole-cell currents in the superficial laminae neurons of the rat spinal dorsal horn is mediated by protein kinase C. Brain Res Bull. 2002 Sep 30;58(6):593-600.

Gly acted on strychnine (STR)-sensitive Gly receptors and elicited inward Cl (-) currents (I (Gly)) at a holding potential of -40 mV; (2). 5-HT potentiated I (Gly) without affecting the reversal potential of I (Gly); (3). the agonist (alpha-methyl-5-HT) and antagonist (ketanserine) of 5-HT (2) receptor mimicked and blocked the potentiating effect of 5-HT on I (Gly), respectively; (4). bisindolylmaleimide I (BIM), a selective inhibitor of protein kinase C (PKC), reduced the potentiating effect of 5-HT on I (Gly); and (5). 5-HT-induced enhancement of I (Gly) was not affected by pretreatment with 1,2-bis-(2-aminophenoxy) ethane-N,N,N',N'-tetraacetic acid tetrakis (acetoxy-methyl) ester (BAPTA AM), a Ca (2+) chelator.
These results indicate that (1). the potentiation of 5-HT on I (Gly) is mediated by 5-HT (2) receptor and through Ca (2+)-independent PKC intracellular signal transduction pathway; and (2). the interactions between 5-HT and Gly might modulate the transmission of nociceptive information through the spinal cord.
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16760346 Harvey PJ, Li X, Li Y, Bennett DJ: Endogenous monoamine receptor activation is essential for enabling persistent sodium currents and repetitive firing in rat spinal motoneurons. J Neurophysiol. 2006 Sep;96(3):1171-86. Epub 2006 Jun 7.


Application of 5-HT2A, 5-HT2C, and alpha1-NE receptor antagonists (ketanserin, RS 102221, and WB 4101, respectively) significantly reduced the Na PICs, and a combined application of these three monoamine antagonists completely eliminated the Na PIC, in both acute and chronic spinal rats.
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19268504 Papiez MA, Dybala M, Sowa-Kucma M, Krzysciak W, Taha H, Jozkowicz A, Nowak G: Evaluation of oxidative status and depression-like responses in Brown Norway rats with acute myeloid leukemia. table of contents.


A significant increase in the potency of glycine to displace [(3) H] L-689,560 from the strychnine-insensitive glycine site of the N-methyl-D-aspartic (NMDA) receptors receptor complex in cortical homogenates of the leukemic rats in 30- and 34-day experimental series was observed in comparison with the control.
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8894185 Green KA, Lambert JJ, Cottrell GA: Ligand-gated ion channels opened by 5-HT in molluscan neurones. Br J Pharmacol. 1996 Oct;119(3):602-8.


The responses were also antagonized by the non-specific antagonists (+)-tubocurarine and strychnine. 4.
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12651653 Koshizaki M, Kawamata M, Shimada SG, Saito Y, Collins JG: 5-HT3 receptors partially mediate halothane depression of spinal dorsal horn sensory neurons. Anesth Analg. 2003 Apr;96(4):1027-31


We recently reported that gamma-aminobutyric acid type A- and strychnine-sensitive glycine receptor systems partially mediate halothane depression of spinal dorsal horn low-threshold neurons.
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