Discovery of potent glycogen synthase kinase 3/cholinesterase inhibitors with neuroprotection as potential therapeutic agent for Alzheimer's disease

Bioorg Med Chem. 2021 Jan 15:30:115940. doi: 10.1016/j.bmc.2020.115940. Epub 2020 Dec 11.

Abstract

In the present work, a novel series of pyridinethiazole bearing benzylpiperidine hybrids were designed and synthesized as dual-target inhibitors of GSK-3β/AChE. Among them, GD29 was the most promising candidate, with an IC50 value of 0.3 μM for hAChE and an IC50 value of 0.003 μM for hGSK-3β, respectively. The compounds exhibited good drug-like properties with optimal inhibitory enzyme activities. Moreover, GD29 showed anti-inflammatory properties at micromolar concentrations and displayed interesting neuroprotective profiles in an in vitro model of oxidative stress-induced neuronal death. Notably, the compounds also exhibited good permeability across the blood-brain-barrier (BBB) both in vitro. Central cholinomimetic activity was confirmed using a scopolamine-induced cognition impairment model in Institute of Cancer Research (ICR) mice upon oral administration. The current work identified optimized compounds and explored the therapeutic potential of glycogen synthase kinase 3/cholinesterase inhibition for the treatment of AD.

Keywords: Cognition; GSK-3β/AChE inhibitor; Inflammation; Neuroprotection.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetylcholinesterase / metabolism
  • Alzheimer Disease / drug therapy*
  • Alzheimer Disease / metabolism
  • Cholinesterase Inhibitors / chemical synthesis
  • Cholinesterase Inhibitors / chemistry
  • Cholinesterase Inhibitors / pharmacology*
  • Dose-Response Relationship, Drug
  • Drug Discovery
  • Glycogen Synthase Kinase 3 beta / antagonists & inhibitors
  • Glycogen Synthase Kinase 3 beta / metabolism
  • Humans
  • Molecular Structure
  • Neuroprotective Agents / chemical synthesis
  • Neuroprotective Agents / chemistry
  • Neuroprotective Agents / pharmacology*
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacology*
  • Pyridines / chemical synthesis
  • Pyridines / chemistry
  • Pyridines / pharmacology*
  • Structure-Activity Relationship
  • Thiazoles / chemical synthesis
  • Thiazoles / chemistry
  • Thiazoles / pharmacology*
  • Tumor Cells, Cultured

Substances

  • Cholinesterase Inhibitors
  • Neuroprotective Agents
  • Protein Kinase Inhibitors
  • Pyridines
  • Thiazoles
  • Glycogen Synthase Kinase 3 beta
  • Acetylcholinesterase
  • pyridine