Effects of galantamine on social interaction impairments in cholecystokinin receptor-2 overexpression mice

J Pharmacol Sci. 2022 Apr;148(4):364-368. doi: 10.1016/j.jphs.2022.02.006. Epub 2022 Feb 21.

Abstract

We examined whether galantamine (GAL), a cholinesterase inhibitor and allosteric potentiating ligand for α7 nicotinic acetylcholine receptor (nAChR), had an impact on emotional abnormalities in forebrain-specific cholecystokinin receptor-2 overexpressed transgenic mice. Treatment with GAL (1 mg/kg, s.c.) attenuated the decrease of social interaction time, but failed to attenuate anxiety-like behavior in the elevated plus-maze test. The effect of GAL was blocked by an α7 nAChR antagonist, methyllycaconitine (3 mg/kg, i.p.). These results suggest that GAL improved social interaction impairments via α7 nAChR and could be useful to treat sociability-related emotional abnormalities.

Keywords: Cholecystokinin receptor transgenic mice; Galantamine; Social interaction.

MeSH terms

  • Animals
  • Cholinesterase Inhibitors* / pharmacology
  • Cholinesterase Inhibitors* / therapeutic use
  • Galantamine* / pharmacology
  • Galantamine* / therapeutic use
  • Mice
  • Receptor, Cholecystokinin B* / genetics
  • Receptor, Cholecystokinin B* / metabolism
  • Social Behavior Disorders* / drug therapy
  • Social Interaction* / drug effects
  • alpha7 Nicotinic Acetylcholine Receptor / antagonists & inhibitors*

Substances

  • Cholinesterase Inhibitors
  • Receptor, Cholecystokinin B
  • alpha7 Nicotinic Acetylcholine Receptor
  • Galantamine