Comparative biophysical characterization: A screening tool for acetylcholinesterase inhibitors

Area of Science:

• Neuroscience
• Biochemistry
• Pharmacology

Background:

• Alzheimer's disease (AD) is a severe neurodegenerative disorder.
• The cholinergic hypothesis implicates acetylcholinesterase (AChE) in cognitive impairment.
• Acetylcholinesterase inhibitors (AChEIs) are key treatments for AD.

Purpose of the Study:

• To evaluate the binding affinity and kinetics of natural molecules with AChE.
• To identify potential natural inhibitors of AChE for AD therapy.
• To explore experimental and theoretical methods for assessing molecular interactions.

Main Methods:

• Surface Plasmon Resonance (SPR) for real-time interaction analysis.
• Fluorescence and Circular Dichroism (CD) spectroscopy for structural and activity insights.
• Molecular docking studies to predict binding modes and affinities.

Main Results:

• Tannic acid exhibited promising high affinity for AChE compared to other screened natural molecules.
• Multiple natural compounds demonstrated significant interactions with AChE.
• The study successfully highlighted molecules with potential therapeutic value.

Conclusions:

• Natural molecules, particularly tannic acid, show potential as AChE inhibitors for Alzheimer's disease treatment.
• The combined experimental and theoretical approach provides a robust method for screening drug candidates.
• Findings support the advancement of these molecules into preclinical studies for neurodegenerative diseases.