Cited by 36Nicotinic Acetylcholine Receptors StudyNeuroscience and Neuropharmacology ResearchAlkaloids: synthesis and pharmacology

Chemistry and Pharmacology of Nicotinic Ligands Based on 6‐[5‐(Azetidin‐2‐ylmethoxy)pyridin‐3‐yl]hex‐5‐yn‐1‐ol (AMOP‐H‐OH) for Possible Use in Depression

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Kozikowski, Alan P., Eaton, J. Brek, Bajjuri, Krishna Mohan, Chellappan, Sheela K., Chen, Yihua, Karadi, Sudhakar, He, Rong, Caldarone, Barbara +3 more·2009·ChemMedChem

Abstract

AMOP‐H‐OH (sazetidine‐A; 6‐[5‐(azetidin‐2‐ylmethoxy)pyridin‐3‐yl]hex‐5‐yn‐1‐ol) and some sulfur‐bearing analogues were tested for their activities in vitro against human α4β2‐, α4β4‐, α3β4*‐ and α1*‐nicotinic acetylcholine receptors (nAChRs). AMOP‐H‐OH was also assessed in an antidepressant efficacy model. AMOP‐H‐OH and some of its analogues have high potency and selectivity for α4β2‐nAChRs over other nAChR subtypes. Effects are manifested as partial agonism, perhaps reflecting selectivity for high sensitivity (α4) 3 (β2) 2 ‐nAChRs. More prolonged exposure to AMOP‐H‐OH and its analogues produces inhibition of subsequent responses to acute challenges with full nicotinic agonists, again selectively for α4β2‐nAChRs over other nAChR subtypes. The inhibition is mediated either via antagonism or desensitization of nAChR function, but the degree of inhibition of α4β2‐nAChRs is limited by the partial agonist activity of the drugs. Certain aspects of the in vitro pharmacology suggest that AMOP‐H‐OH and some of its analogues have a set of binding sites on α4β2‐nAChRs that are distinct from those for full agonists. The in vitro pharmacological profile suggests that peripheral side effects of AMOP‐H‐OH or its analogues would be minimal and that their behavioral effects would be dominated by central nAChR actions. AMOP‐H‐OH also has profound and high potency antidepressant‐like effects in the forced swim test. The net action of prolonged exposure to AMOP‐H‐OH or its analogues, as for nicotine, seems to be a selective decrease in α4β2‐nAChR function. Inactivation of nAChRs may be a common neurochemical endpoint for nicotine dependence, its treatment, and some of its manifestations, including relief from depression.

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  1. [1]D′Hoedt D Bertrand D Expert Opin. Ther. Targets 2009 13 395 19335063
  2. [7]Djuriâc VJ Dunn E Overstreet DH Dragomir A Steiner M Physiol. Behav 1999 67 533 10549890
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Authors
Kozikowski, A. P., Eaton, J. B., Bajjuri, K. M., Chellappan, S. K., Chen, Y., Karadi, S., He, R., Caldarone, B., Manzano, M., Yuen, P., & Lukas, R. J.
Affiliations
  • University of Illinois Chicago (US)
  • Barrow Neurological Institute (US)
  • Psychogenics (United States) (US)
Corresponding author
Lukas, Ronald J.
Venue
ChemMedChem
Publisher
Wiley
Published
2009-07-30
Volume
4
Issue
8
Pages
1279-1291
ISSN
  • 1860-7179 (ISSN-L)
  • 1860-7187
OpenAlex
W1981086691
Cited by
36
References
31
Citations by year
2020: 1 · 2018: 1 · 2016: 4 · 2015: 2 · 2014: 5 · 2013: 8 · 2012: 7
FWCI
2.41
Type
journal article
Language
en
Open access
Locations
  • ChemMedChem (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute on Drug Abuse (R01DA015389, R01DA017980)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Alkaloids: synthesis and pharmacology
Keywords
nicotinic acetylcholine receptors, alpha4beta2 nAChR, antidepressant effects, partial agonism, receptor desensitization, receptor antagonism, forced swim test, nicotine dependence
MeSH terms
Animals, Antidepressive Agents, Azetidines, Depression, Humans, Ligands, Motor Activity, Pyridines, Receptors, Nicotinic, Protein Isoforms, Mice

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