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Abbas-Mohammadi M, Moridi Farimani M, Salehi P, Ebrahimi SN, Sonboli A, Kelso C, Skropeta D. Molecular networking based dereplication of AChE inhibitory compounds from the medicinal plant Vincetoxicum funebre (Boiss. & Kotschy). J Biomol Struct Dyn 2020; 40:1942-1951. [PMID: 33054569 DOI: 10.1080/07391102.2020.1834455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disease affecting 47 million people worldwide. While acetylcholinesterase (AChE) inhibitors such as donepezil and galantamine are leading drugs in the symptomatic treatment of AD, new AChE inhibitors continue to be explored for improved potency and selectivity. Herein, a molecular networking approach using high resolution (HR-MS) and tandem mass spectrometry (MS2) has been used for rapid chemical profiling of an extract of the medicinal plant Vincetoxicum funebre Boiss. & Kotschy (Apocynaceae family) that was active against AChE. A total of 44 compounds were identified by combining the MN with traditional natural product methods, including the isolation and identification of five known compounds (13, 41-44) and a novel C13-norisoprenoid (40). In addition, the potential inhibitory activity of all 44 compounds was evaluated against the AChE enzyme via molecular docking to provide further support to the proposed structures. The glycosylated flavonoid querciturone (31) exhibited the highest affinity with a docking score value of -13.43 kJ/mol. Another five compounds showed stronger docking scores against AChE than the clinically used donepezil including the most active isolated compound daucosterol (44), with a binding affinity of -10.11 kJ/mol towards AChE. These findings broaden our understanding of Vincetoxicum metabolites and highlight the potential of glycosylated flavonoids as AChE inhibitors.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mahdi Abbas-Mohammadi
- Department of Phytochemistry, Medicinal Plants & Drugs Research Institute, Shahid Beheshti University, Tehran, Iran.,School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine & Health; Molecular Horizons, University of Wollongong, Wollongong, Australia
| | - Mahdi Moridi Farimani
- Department of Phytochemistry, Medicinal Plants & Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Peyman Salehi
- Department of Phytochemistry, Medicinal Plants & Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants & Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Ali Sonboli
- Department of Phytochemistry, Medicinal Plants & Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Celine Kelso
- School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine & Health; Molecular Horizons, University of Wollongong, Wollongong, Australia.,Illawarra Health & Medical Research Institute, Wollongong, NSW, Australia
| | - Danielle Skropeta
- School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine & Health; Molecular Horizons, University of Wollongong, Wollongong, Australia.,Illawarra Health & Medical Research Institute, Wollongong, NSW, Australia
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Mughal EU, Sadiq A, Ayub M, Naeem N, Javid A, Sumrra SH, Zafar MN, Khan BA, Malik FP, Ahmed I. Exploring 3-Benzyloxyflavones as new lead cholinesterase inhibitors: synthesis, structure–activity relationship and molecular modelling simulations. J Biomol Struct Dyn 2020; 39:6154-6167. [DOI: 10.1080/07391102.2020.1803136] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Amina Sadiq
- Department of Chemistry, Govt. College Women University, Sialkot, Pakistan
| | - Momna Ayub
- Department of Chemistry, Govt. College Women University, Sialkot, Pakistan
| | - Nafeesa Naeem
- Department of Chemistry, University of Gujrat, Gujrat, Pakistan
| | - Asif Javid
- Department of Chemistry, University of Gujrat, Gujrat, Pakistan
| | | | | | - Bilal Ahmad Khan
- Department of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | | | - Ishtiaq Ahmed
- Department of Engineering & Biotechnology, University of Cambridge, Cambridge, UK
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Iraji A, Khoshneviszadeh M, Firuzi O, Khoshneviszadeh M, Edraki N. Novel small molecule therapeutic agents for Alzheimer disease: Focusing on BACE1 and multi-target directed ligands. Bioorg Chem 2020; 97:103649. [PMID: 32101780 DOI: 10.1016/j.bioorg.2020.103649] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 01/05/2020] [Accepted: 02/03/2020] [Indexed: 12/17/2022]
Abstract
Alzheimer's Disease (AD) is a progressive neurodegenerative disorder that effects 50 million people worldwide. In this review, AD pathology and the development of novel therapeutic agents targeting AD were fully discussed. In particular, common approaches to prevent Aβ production and/or accumulation in the brain including α-secretase activators, specific γ-secretase modulators and small molecules BACE1 inhibitors were reviewed. Additionally, natural-origin bioactive compounds that provide AD therapeutic advances have been introduced. Considering AD is a multifactorial disease, the therapeutic potential of diverse multi target-directed ligands (MTDLs) that combine the efficacy of cholinesterase (ChE) inhibitors, MAO (monoamine oxidase) inhibitors, BACE1 inhibitors, phosphodiesterase 4D (PDE4D) inhibitors, for the treatment of AD are also reviewed. This article also highlights descriptions on the regulator of serotonin receptor (5-HT), metal chelators, anti-aggregants, antioxidants and neuroprotective agents targeting AD. Finally, current computational methods for evaluating the structure-activity relationships (SAR) and virtual screening (VS) of AD drugs are discussed and evaluated.
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Affiliation(s)
- Aida Iraji
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahsima Khoshneviszadeh
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Omidreza Firuzi
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehdi Khoshneviszadeh
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Medicinal Chemistry, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Najmeh Edraki
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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