Journal
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volume 482, Issue 4, Pages 615-624Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2016.11.082
Keywords
Alzheimer's disease; Cholinesterases inhibitors; Piperidyl-thienyl derivatives; 2-Pyrazoline derivatives of chalcones; Molecular docking
Categories
Funding
- Organization for the Prohibition of Chemical Weapons (OPCW), The Hague, The Netherlands [20-3733/NRPU/RD/14/520]
- Higher Education Commission of Pakistan [20-3733/NRPU/RD/14/520]
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Super-activation of cholinesterases (acetylcholinesterase and butyrylcholinesterase) are linked to various neurological problems most precisely Alzheimer's disease (AD), which leads to senile dementia. Therefore, cholinesterases (AChE & BChE) inhibition are considered as a promising strategy for the treatment of Alzheimer's disease. FDA approved drugs for the treatment of AD, belong to a group of cholinesterase inhibitors. However, none of them is able to combat or completely abrogate the disease progression. Herein, we report a series of newly synthesized chalcone derivatives with anti-AD potential. For this purpose, a series of piperidyl-thienyl and 2-pyrazoline derivatives of chalcones were tested for their cholinesterases (AChE & BChE) inhibitory activity. All compounds were found as selective inhibitor of AChE. In piperidyl chalcones derivatives compound 1e having IC50, of 0.16 +/- 0.008 mu M and 2m in 2-pyrazoline chalcones with IC50 of 0.13 +/- 0.006 mu M, were found to be the most potent inhibitors of AChE, exhibiting approximate to 142 and approximate to 173-fold greater inhibitory potential compared to the reference inhibitor i.e., Neostigmine (IC50 SEM = 22.2 +/- 3.2 mu M). Molecular docking studies of most potent inhibitors were carried out to investigate the binding interactions inside the active site. Molecular docking study revealed that potent compounds and co-crystalized ligand had same binding orientation within the active site of target enzyme. Most of these compounds are selective inhibitors of AChE with a potential use against progressive neurodegenerative disorder and age related problems. (C) 2016 Elsevier Inc. All rights reserved.
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