Biological activity of sym-triazines with acetylcholine-like substitutions as multitarget modulators of Alzheimer's disease

ACS Chem Neurosci. 2013 Jun 19;4(6):924-9. doi: 10.1021/cn400028w. Epub 2013 Mar 21.

Abstract

The bioactivities of two novel compounds (TAE-1 and TAE-2) that contain a sym-triazine scaffold with acetylcholine-like substitutions are examined as promising candidate agents against Alzheimer's disease. Inhibition of amyloid-β fibril formation in the presence of Aβ1-42, evaluated by Thioflavin T fluorescence, demonstrated comparable or improved activity to a previously reported pentapeptide-based fibrillogenesis inhibitor, iAβ5p. Destabilization of Aβ1-42 assemblies by TAE-1 and TAE-2 was confirmed by scanning electron microscopy imaging. sym-Triazine inhibition of acetylcholinesterase (AChE) activity was observed in cytosol extracted from differentiated human SH-SY5Y neuronal cells and also using human erythrocyte AChE. The sym-triazine derivatives were well tolerated by these cells and promoted beneficial effects on human neurons, upregulating expression of synaptophysin, a synaptic marker protein, and MAP2, a neuronal differentiation marker.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetylcholine / administration & dosage
  • Acetylcholine / chemistry*
  • Alzheimer Disease* / drug therapy
  • Alzheimer Disease* / pathology
  • Amyloid beta-Peptides / chemistry
  • Biological Products / administration & dosage
  • Biological Products / chemistry*
  • Cell Differentiation / drug effects
  • Cell Differentiation / physiology
  • Cell Line, Tumor
  • Drug Delivery Systems / methods*
  • Humans
  • Peptide Fragments / chemistry
  • Protein Structure, Secondary
  • Triazines / administration & dosage
  • Triazines / chemistry*

Substances

  • Amyloid beta-Peptides
  • Biological Products
  • Peptide Fragments
  • Triazines
  • amyloid beta-protein (1-42)
  • Acetylcholine