1
|
Soliman AM, Abd El-Wahab HAA, Akincioglu H, Gülçin İ, Omar FA. Piperazine-2-carboxylic acid derivatives as MTDLs anti-Alzheimer agents: Anticholinesterase activity, mechanistic aspect, and molecular modeling studies. Bioorg Chem 2024; 142:106916. [PMID: 37913584 DOI: 10.1016/j.bioorg.2023.106916] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 11/03/2023]
Abstract
Development of Multitarget-Directed Ligands (MTDLs) is a promising approach to combat the complex etiologies of Alzheimer's disease (AD). Herein we report the design, synthesis, and characterization of a new series of 1,4-bisbenzylpiperazine-2-carboxylic acid derivatives 3-5(a-g), 7a-f, 8a-s, and their piperazine-2-yl-1,3,4-oxadiazole analogs 6a-g. In vitro inhibitory effect against Electrophorus electricus acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) from Equine serum was evaluated using modified Ellman's method, considering donepezil and tacrine as reference drugs. Lineweaver-Burk plot analysis of the results proved competitive inhibition of AChE and BChE with Ki values, in low micromolar range. The free carboxylic acid series 4a-g showed enhanced selectivity for AChE. Hence, 4c, 1,4-bis (4-chlorobenzyl)-piperazinyl-2-carboxylic acid), was the most active member of this series (Ki (AChE) = 10.18 ± 1.00 µM) with clear selectivity for AChE (SI ∼ 17.90). However, the hydroxamic acids 7a-f and carboxamides 8a-s congeners were more potent and selective inhibitors of BChE (SI ∼ 5.38 - 21862.5). Extraordinarily, 1,4-bis (2-chlorobenzyl)-piperazinyl-2-hydroxamic acid 7b showed promising inhibitory activity against BChE enzyme (Ki = 1.6 ± 0.08 nM, SI = 21862.5), that was significantly superior to that elicited by donepezil (Ki = 12.5 ± 2.6 µM) and tacrine (Ki = 17.3 ± 2.3 nM). Cytotoxicity assessment of 4c and 7b, on human neuroblastoma (SH-SY5Y) cell lines, revealed lower toxicity than staurosporine and was nearly comparable to that of donepezil. Molecular docking and molecular dynamics simulation afforded unblemished insights into the structure-activity relationships for AChE and BChE inhibition. The results showed stable binding with fair H-bonding, hydrophobic and/or ionic interactions to the catalytic and peripheral anionic sites of the enzymes. In silico predicted ADME and physicochemical properties of conjugates showed good CNS bioavailability and safety parameters. In this regard, compound (7b) might be considered as a promising inhibitor of BChE with an innovative donepezil-based anti-Alzheimer activity. Further assessments of the most potent AChE and BChE inhibitors as potential MTDLs anti-Alzheimer's agents are under investigation with our research group and will be published later.
Collapse
Affiliation(s)
- Aya M Soliman
- Department of Medicinal Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt
| | - Hend A A Abd El-Wahab
- Department of Medicinal Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt
| | - Hulya Akincioglu
- Department of Chemistry, Faculty of Science and Arts, Agri-Ibrahim Cecen University, 04100 Agri, Turkey
| | - İlhami Gülçin
- Department of Chemistry, Faculty of Science, Ataturk University, 25240 Erzurum, Turkey.
| | - Farghaly A Omar
- Department of Medicinal Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt.
| |
Collapse
|
2
|
El-Wahab HAAA, Ali AM, Abdel-Rahman HM, Qayed WS. Synthesis, biological evaluation, and molecular modeling studies of acetophenones-tethered 1,2,4-triazoles and their oximes as epidermal growth factor receptor inhibitors. Chem Biol Drug Des 2022; 100:981-993. [PMID: 34773452 DOI: 10.1111/cbdd.13982] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 09/12/2021] [Accepted: 11/06/2021] [Indexed: 01/25/2023]
Abstract
A series of 5-(4-pyridyl)-1,2,4-triazoles hybrids with acetophenones and their oxime derivatives was rationally designed and synthesized as epidermal growth factor receptor (EGFR) kinase inhibitors. Initially, drug Likeness and pharmacokinetics properties of the prepared compounds were evaluated. Afterward, the prepared compounds were in vitro screened for their ability to inhibit the growth of the NCI-60 human cancer cell lines where certain compounds showed moderate activity. Compounds 4e and 5b emerged as the most potent compounds in this series were further tested for their EGFR enzyme inhibition activity. They showed IC50 values of 0.14 and 0.18 µM, respectively, in comparison with Gefitinib as a reference with an IC50 value of 0.06 µM. Docking of compounds 4e and 5b into the binding site of EGFR tyrosine kinase was performed to explains their possible binding mode and to compare it with known inhibitors. Moreover, molecular dynamic simulations were estimated for deeper understanding of the binding mode of compounds 4e and 5b at the binding site of EGFR tyrosine kinase. The findings indicated that the novel ligands 4e and 5b were stable in the EGFR tyrosine kinase active site.
Collapse
Affiliation(s)
- Hend A A Abd El-Wahab
- Medicinal Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Ahmed M Ali
- Medicinal Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Hamdy M Abdel-Rahman
- Medicinal Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt.,Pharmaceutical Chemistry Department, Faculty of Pharmacy, Nahda University (NUB), Beni-Suef, Egypt
| | - Wesam S Qayed
- Medicinal Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| |
Collapse
|
3
|
Hamoud MMS, Osman NA, Rezq S, A A Abd El-Wahab H, E A Hassan A, Abdel-Fattah HA, Romero DG, Ghanim AM. Design and Synthesis of Novel 1,3,4-Oxadiazole and 1,2,4-Triazole Derivatives as Cyclooxygenase-2 Inhibitors with Anti-inflammatory and Antioxidant activity in LPS-stimulated RAW264.7 Macrophages. Bioorg Chem 2022; 124:105808. [PMID: 35447409 PMCID: PMC10965220 DOI: 10.1016/j.bioorg.2022.105808] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 03/12/2022] [Accepted: 04/10/2022] [Indexed: 02/07/2023]
Abstract
In an attempt to obtain new candidates with potential anti-inflammatory activity, two series of 1,3,4-oxadiazole based derivatives (8a-g) and 1,2,4-triazole based derivatives (10a,b and 11a-g) were synthesized and evaluated for their COX-1/COX-2 inhibitory activity. In vitro assays showed potent COX-2 inhibitory activity and selectivity of the novel designed compounds (IC50 = 0.04 - 0.16 μM, SI = 60.71 - 337.5) compared to celecoxib (IC50 = 0.045 μM, SI = 326.67). The anti-inflammatory and antioxidant activity of the synthesized compounds was investigated via testing their ability to inhibit pro-inflammatory [tumour necrosis factor (TNF-α) and interleukin-6 (IL-6)] and oxidative stress [nitric oxide (NO) and reactive oxygen species (ROS)] markers production in lipopolysaccharide (LPS)-activated RAW 264.7 macrophages. Most of the novel compounds exhibited potent anti-inflammatory and antioxidant activity. In particular, the novel compounds showed excellent IL-6 inhibitory activity (IC50 = 0.96 - 11.14 μM) when compared to celecoxib (IC50 = 13.04 μM) and diclofenac sodium (IC50 = 22.97 μM). Moreover, the most potent and selective COX-2 inhibitor 11c (IC50 = 0.04 μM, SI = 337.5) displayed significantly higher activity against NO and ROS production compared to celecoxib (IC50 = 2.60 and 3.01 μM vs. 16.47 and 14.30 μM, respectively). Molecular modelling studies of the novel designed molecules into COX-2 active sites analysed their binding affinity. In-silico simulation studies indicated their acceptable physicochemical properties and pharmacokinetic profiles. This study suggests that the novel synthesized COX-2 inhibitors exert potent anti-inflammatory and antioxidant activity, highlighting their potential as promising therapeutic agents for the treatment of inflammation and oxidative stress-related diseases.
Collapse
Affiliation(s)
- Mohamed M S Hamoud
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Nermine A Osman
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Samar Rezq
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Egypt; Department of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, MS, USA; Mississippi Center for Excellence in Perinatal Research, University of Mississippi Medical Center, Jackson, MS, USA; Women's Health Research Center, University of Mississippi Medical Center, Jackson, MS, USA; Cardio Renal Research Center, University of Mississippi Medical Center, Jackson, MS, USA
| | - Hend A A Abd El-Wahab
- Department of Medicinal Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Abdalla E A Hassan
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Hanan A Abdel-Fattah
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Damian G Romero
- Department of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, MS, USA; Mississippi Center for Excellence in Perinatal Research, University of Mississippi Medical Center, Jackson, MS, USA; Women's Health Research Center, University of Mississippi Medical Center, Jackson, MS, USA; Cardio Renal Research Center, University of Mississippi Medical Center, Jackson, MS, USA
| | - Amany M Ghanim
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt.
| |
Collapse
|
4
|
Mansour HS, Abd El-Wahab HAA, Ali AM, Aboul-Fadl T. Inversion kinetics of some E/ Z 3-(benzylidene)-2-oxo-indoline derivatives and their in silico CDK2 docking studies. RSC Adv 2021; 11:7839-7850. [PMID: 35423292 PMCID: PMC8695066 DOI: 10.1039/d0ra10672k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 02/01/2021] [Indexed: 11/30/2022] Open
Abstract
The structure-based design of some CDK2 inhibitors with a 3-(benzylidene)indolin-2-one scaffold as potential anticancer agents was realized. Target compounds were obtained as E/Z mixtures and were resolved to corresponding E- and Z-diastereomers. In silico studies using MOE 2019.01 software revealed better docking on the targeted enzyme for the Z-diastereomer compared to the E-one. A time-dependent kinetic isomerization study was carried out for the inversion of E/Z diastereomers in DMSO-d6 at room temperature, and were found to obey the first order kinetic reactions. Furthermore, a determination of the kinetic inter-conversion rate order by graphical analysis method and calculation of the rate constant and half-life of this kinetic process were carried out. For the prediction of the stability of the diastereomer(s), a good multiple regression equation was generated between the reaction rates of isomerization and some QM parameters with significant p value.
Collapse
Affiliation(s)
- Hany S Mansour
- Department of Medicinal Chemistry, Faculty of Pharmacy, Assiut University Assiut Egypt
| | - Hend A A Abd El-Wahab
- Department of Medicinal Chemistry, Faculty of Pharmacy, Assiut University Assiut Egypt
| | - Ahmed M Ali
- Department of Medicinal Chemistry, Faculty of Pharmacy, Assiut University Assiut Egypt
| | - Tarek Aboul-Fadl
- Department of Medicinal Chemistry, Faculty of Pharmacy, Assiut University Assiut Egypt
| |
Collapse
|