ArticleInternational journal of molecular sciences2022
Role of 5-HT2A, 5-HT2C, 5-HT1A and TAAR1 Receptors in the Head Twitch Response Induced by 5-Hydroxytryptophan and Psilocybin: Translational Implications.
Article in International journal of molecular sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.
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38 citing papers in PubMed, 58 citations in OpenAlex.
- Deconstruction of lysergic acid diethylamide.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- αMolecular psychiatry · 2026Article
- Preclinical models for evaluating psychedelics in the treatment of major depressive disorder.British journal of pharmacology · 2026Review
- High dose of psilocybin induces acute behavioral changes without inducing conditioned place preference in Sprague-Dawley rats.Journal of psychopharmacology (Oxford, England) · 2026Article
- Psilocybin ameliorates neuropathic pain-like behaviour in mice and facilitates gabapentin-mediated analgesia.Communications biology · 2026Article
- Psilocybin elicits a conserved glucocorticoid-responsive gene signature across five 5-HT2A receptor-rich brain regions in rat.Acta neuropsychiatrica · 2026Article
- The psychedelic phenethylamine 25C-NBF, a selective 5-HT2A agonist, shows psychoplastogenic properties and rapid antidepressant effects in male rodents.Molecular psychiatry · 2026Article
- The 4-alkyl chain length of 2,5-dimethoxyamphetamines differentially affects in vitro serotonin receptor actions versus in vivo psychedelic-like effects.Molecular psychiatry · 2026Article
- Neuropharmacology of halogenated DMT analogs: psychoplastogenic and antidepressant properties of 5-Br-DMT, a psychedelic derivative with low hallucinogenic potential.Molecular psychiatry · 2026Article
- Predictors of the Effectiveness of Psychedelics in Treating Depression-A Scoping Review.International journal of molecular sciences · 2026Article
- No evidence of immediate or persistent analgesic effect from a single dose of psilocybin in three mouse models of pain.Nature communications · 2026Article
- Acute psilocybin or ethocybin leads to a sustained increase in Pavlovian aversion memory in male mice.Frontiers in pharmacology · 2026Article
- Acute psilocin increased cortical activity in rat.Frontiers in neuroscience · 2026Article
- An exploration of the relationships between the effects of psilocybin on behavior, 5-HTJournal of psychopharmacology (Oxford, England) · 2026Article
- Biased Signaling in Psychedelic Action.Annual review of pharmacology and toxicology · 2026Review
- Above the threshold, beyond the trip: the role of the 5-HTMolecular psychiatry · 2025Review
- Psychedelic 5-HTNature neuroscience · 2025Article
- Psilocin alleviates acute itch in mice: possible involvement of 5-HT2A receptors and kynurenine pathway.Naunyn-Schmiedeberg's archives of pharmacology · 2025Article
- Trace Amine-associated Receptors (TAARs): Candidate Targets in the Treatment of Bipolar Disorders.Actas espanolas de psiquiatria · 2025Review
- Are "mystical experiences" essential for antidepressant actions of ketamine and the classic psychedelics?European archives of psychiatry and clinical neuroscience · 2025Review
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
Abstract
There is increasing interest in the therapeutic potential of psilocybin. In rodents, the serotonin precursor, 5-hydroxytryptophan (5-HTP) and psilocybin induce a characteristic 5-HT2A receptor (5-HT2AR)-mediated head twitch response (HTR), which is correlated with the human psychedelic trip. We examined the role of other serotonergic receptors and the trace amine -associated receptor 1 (TAAR1) in modulating 5-HTP- and psilocybin-induced HTR. Male C57BL/6J mice (11 weeks, ~30 g) were administered 5-HTP, 50-250 mg/kg i.p., 200 mg/kg i.p. after pretreatment with 5-HT/TAAR1 receptor modulators, psilocybin 0.1-25.6 mg/kg i.p. or 4.4 mg/kg i.p., immediately preceded by 5-HT/TAAR1 receptor modulators. HTR was assessed in a custom-built magnetometer. 5-HTP and psilocybin induced a dose-dependent increase in the frequency of HTR over 20 min with attenuation by the 5-HT2AR antagonist, M100907, and the 5-HT1AR agonist, 8-OH-DPAT. The 5-HT2CR antagonist, RS-102221, enhanced HTR at lower doses but reduced it at higher doses. The TAAR1 antagonist, EPPTB, reduced 5-HTP- but not psilocybin-induced HTR. We have confirmed the key role of 5-HT2AR in HTR, an inhibitory effect of 5-HT1AR, a bimodal contribution of 5-HT2CR and a role of TAAR1 in modulating HTR induced by 5-HTP. Compounds that modulate psychedelic-induced HTR have important potential in the emerging therapeutic use of these compounds.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.