Donepezil-based rational design of N-substituted quinazolinthioacetamide candidates as potential acetylcholine esterase inhibitors for the treatment of Alzheimer's disease: in vitro and in vivo studies.

IF 4.1 4区 医学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY RSC medicinal chemistry Pub Date : 2025-02-13 DOI:10.1039/d4md00778f
Ahmed A Al-Karmalawy, Ahmed F Mohamed, Heba Nasr Shalaby, Ayman Abo Elmaaty, Riham A El-Shiekh, Mohamed A Zeidan, Radwan Alnajjar, Abdullah Yahya Abdullah Alzahrani, Mohammed H Al Mughram, Moataz A Shaldam, Haytham O Tawfik
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引用次数: 0

Abstract

Alzheimer's disease (AD) stands as one of the most outstanding progressive neurodegenerative disorders. Obviously, acetylcholine esterase (AChE) is the primary enzyme responsible for breaking down acetylcholine (ACh) with a much more prominent effect than butyrylcholine esterase (BuChE). Hence, novel quinazoline derivatives (3a-p) were designed and synthesized as AChE inhibitors for AD treatment. The newly synthesized quinazoline derivatives (3a-p) were pursued for their inhibitory potential towards both AChE and BuChE. Notably, compound 3e displayed the highest inhibitory potential towards AChE (IC50 = 9.26 nM) surpassing donepezil (IC50 = 16.43 nM). On the other side, compound 3e effectively negated the decline in memory acquisition and retention instigated by ICV administration of streptozotocin (STZ) in mice, an effect that was comparable to that produced by donepezil. Moreover, compound 3e, reduced BACE1 by 51.08% (p < 0.0001), Aβ42 by 52.47% (p < 0.0001), and p(Ser199)-tau by 69.16% (p < 0.0001) compared to STZ mice. Such effects were similar to those of donepezil which reduced all 3 parameters by 57.53%, 58.5%, and 66.78%, respectively, compared to STZ mice. Furthermore, molecular docking studies showed that the superimposition view clarified the similar binding mode of both 3e and the co-crystallized donepezil at the AChE binding pocket. Moreover, the docked complexes (3e-AChE and 3e-BuChE) were further subject to molecular dynamics simulations for 100 ns. In addition, eligible pharmacokinetic profiles as well as feasible BBB penetration were anticipated for compound 3e using ADME and BBB permeation prediction studies. Accordingly, the synthesized compounds, in particular compound 3e, can be treated as promising lead compounds for AD treatment with future further optimization.

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