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Halder D, Das S, R S J, Joseph A. Role of multi-targeted bioactive natural molecules and their derivatives in the treatment of Alzheimer's disease: an insight into structure-activity relationship. J Biomol Struct Dyn 2023; 41:11286-11323. [PMID: 36579430 DOI: 10.1080/07391102.2022.2158136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/07/2022] [Indexed: 12/30/2022]
Abstract
Alzheimer's disease (AD) is a complex neurodegenerative disorder involving cognitive dysfunction like short-term memory and behavioral changes as the disease progresses due to other unaltered physiological factors. The solution for this problem is Multi-targeted Drugs (MTDs), which can affect multiple determinants to realize the multifunctional effects. Acetylcholinesterase (AChE) inhibitors donepezil, rivastigmine, galantamine, and N-methyl-D-aspartate (NMDA) receptor antagonist memantine are FDA-approved drugs used to treat AD symptomatically. The key objective of this review is to understand multitargeted bioactive natural molecules that could be considered as leads for further development as effective drugs for treating AD, along with understanding its pharmacology and structure-activity relationship (SAR). Understanding the molecular mechanism of the AD pathophysiology, the role of existing drugs, treatment of AD via amyloid beta (Aβ) plaque, and neurofibrillary tangle (NFT) inhibition by natural bioactive molecules were also discussed in the review. The current quest and recent advancements with natural bioactive compounds like physostigmine, resveratrol, curcumin, and catechins, along with the study of in silico SAR, were reported in the present study. This review summarises the structural properties required for bioactive natural molecules to show anti-Alzheimer's activity by emphasizing on SAR of several bioactive natural molecules targeting various AD pathologies, their key molecular interactions that are critical for target specificity, their role as multitargeted ligands, used with adjunctive therapy for AD followed by related US patents granted recently. This article highlights the significance of the structural features of natural bioactive molecules in the treatment of AD and establishes a connection between them.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Debojyoti Halder
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Subham Das
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Jeyaprakash R S
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Alex Joseph
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
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2
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Tullius Scotti M, Herrera-Acevedo C, Barros de Menezes RP, Martin HJ, Muratov EN, Ítalo de Souza Silva Á, Faustino Albuquerque E, Ferreira Calado L, Coy-Barrera E, Scotti L. MolPredictX: Online Biological Activity Predictions by Machine Learning Models. Mol Inform 2022; 41:e2200133. [PMID: 35961924 DOI: 10.1002/minf.202200133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 08/12/2022] [Indexed: 01/05/2023]
Abstract
Here we report the development of MolPredictX, an innovate and freely accessible web interface for biological activity predictions of query molecules. MolPredictX utilizes in-house QSAR models to provide 27 qualitative predictions (active or inactive), and quantitative probabilities for bioactivity against parasitic (Trypanosoma and Leishmania), viral (Dengue, Sars-CoV and Hepatitis C), pathogenic yeast (Candida albicans), bacterial (Salmonella enterica and Escherichia coli), and Alzheimer disease enzymes. In this article, we introduce the methodology and usability of this webtool, highlighting its potential role in the development of new drugs against a variety of diseases. MolPredictX is undergoing continuous development and is freely available at https://www.molpredictx.ufpb.br/.
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Affiliation(s)
- Marcus Tullius Scotti
- Programa de Pós-Graduação de Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil
| | - Chonny Herrera-Acevedo
- Programa de Pós-Graduação de Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil.,Department of Chemical Engineering, Universidad ECCI, Carrera 19 # 49-20, 111311, Bogotá D.C., Colombia
| | - Renata Priscila Barros de Menezes
- Programa de Pós-Graduação de Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil
| | - Holli-Joi Martin
- Laboratory for Molecular Modeling, Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Eugene N Muratov
- Laboratory for Molecular Modeling, Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Ávilla Ítalo de Souza Silva
- Programa de Pós-Graduação de Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil
| | - Emmanuella Faustino Albuquerque
- Programa de Pós-Graduação de Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil
| | - Lucas Ferreira Calado
- Programa de Pós-Graduação de Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil
| | - Ericsson Coy-Barrera
- Bioorganic Chemistry Laboratory, Facultad de Ciencias Básicas y Aplicadas, Universidad Militar Nueva Granada, Cajicá, 250247, Colombia
| | - Luciana Scotti
- Programa de Pós-Graduação de Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil
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3
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Jana A, Bhattacharjee A, Das SS, Srivastava A, Choudhury A, Bhattacharjee R, De S, Perveen A, Iqbal D, Gupta PK, Jha SK, Ojha S, Singh SK, Ruokolainen J, Jha NK, Kesari KK, Ashraf GM. Molecular Insights into Therapeutic Potentials of Hybrid Compounds Targeting Alzheimer's Disease. Mol Neurobiol 2022; 59:3512-3528. [PMID: 35347587 PMCID: PMC9148293 DOI: 10.1007/s12035-022-02779-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 02/21/2022] [Indexed: 02/08/2023]
Abstract
Alzheimer's disease (AD) is one of the most complex progressive neurological disorders involving degeneration of neuronal connections in brain cells leading to cell death. AD is predominantly detected among elder people (> 65 years), mostly diagnosed with the symptoms of memory loss and cognitive dysfunctions. The multifarious pathogenesis of AD comprises the accumulation of pathogenic proteins, decreased neurotransmission, oxidative stress, and neuroinflammation. The conventional therapeutic approaches are limited to symptomatic benefits and are ineffective against disease progression. In recent years, researchers have shown immense interest in the designing and fabrication of various novel therapeutics comprised of naturally isolated hybrid molecules. Hybrid therapeutic compounds are developed from the combination of pharmacophores isolated from bioactive moieties which specifically target and block various AD-associated pathogenic pathways. The method of designing hybrid molecules has numerous advantages over conventional multitarget drug development methods. In comparison to in silico high throughput screening, hybrid molecules generate quicker results and are also less expensive than fragment-based drug development. Designing hybrid-multitargeted therapeutic compounds is thus a prospective approach in developing an effective treatment for AD. Nevertheless, several issues must be addressed, and additional researches should be conducted to develop hybrid therapeutic compounds for clinical usage while keeping other off-target adverse effects in mind. In this review, we have summarized the recent progress on synthesis of hybrid compounds, their molecular mechanism, and therapeutic potential in AD. Using synoptic tables, figures, and schemes, the review presents therapeutic promise and potential for the development of many disease-modifying hybrids into next-generation medicines for AD.
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Affiliation(s)
- Ankit Jana
- School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT) Deemed To Be University, Campus-11, Patia, Bhubaneswar, Odisha, 751024, India
| | - Arkadyuti Bhattacharjee
- School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT) Deemed To Be University, Campus-11, Patia, Bhubaneswar, Odisha, 751024, India
| | - Sabya Sachi Das
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India
| | - Avani Srivastava
- School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT) Deemed To Be University, Campus-11, Patia, Bhubaneswar, Odisha, 751024, India
| | - Akshpita Choudhury
- School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT) Deemed To Be University, Campus-11, Patia, Bhubaneswar, Odisha, 751024, India
| | - Rahul Bhattacharjee
- School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT) Deemed To Be University, Campus-11, Patia, Bhubaneswar, Odisha, 751024, India
| | - Swagata De
- Department of English, DDE Unit, The University of Burdwan, GolapbagBurdwan, West Bengal, 713104, India
| | - Asma Perveen
- Glocal School of Life Sciences, Glocal University, Mirzapur Pole, Saharanpur, Uttar Pradesh, India
| | - Danish Iqbal
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Al-Majmaah, 11952, Saudi Arabia
| | - Piyush Kumar Gupta
- Department of Life Sciences, School of Basic Sciences and Research (SBSR), Sharda University, Greater Noida, Uttar Pradesh, 201310, India
| | - Saurabh Kumar Jha
- Department of Biotechnology, School of Engineering and Technology (SET), Sharda University, Greater Noida, Uttar Pradesh, 201310, India
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, 15551, Al Ain, United Arab Emirates
| | - Sandeep Kumar Singh
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India
| | - Janne Ruokolainen
- Department of Applied Physics, School of Science, Aalto University, 00076, Espoo, Finland
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering and Technology (SET), Sharda University, Greater Noida, Uttar Pradesh, 201310, India.
| | - Kavindra Kumar Kesari
- Department of Applied Physics, School of Science, Aalto University, 00076, Espoo, Finland.
| | - Ghulam Md Ashraf
- Pre-Clinical Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia. .,Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.
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Vrabec R, Maříková J, Ločárek M, Korábečný J, Hulcová D, Hošťálková A, Kuneš J, Chlebek J, Kučera T, Hrabinová M, Jun D, Soukup O, Andrisano V, Jenčo J, Šafratová M, Nováková L, Opletal L, Cahlíková L. Monoterpene indole alkaloids from Vinca minor L. (Apocynaceae): Identification of new structural scaffold for treatment of Alzheimer's disease. PHYTOCHEMISTRY 2022; 194:113017. [PMID: 34798410 DOI: 10.1016/j.phytochem.2021.113017] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/25/2021] [Accepted: 11/09/2021] [Indexed: 05/24/2023]
Abstract
One undescribed indole alkaloid together with twenty-two known compounds have been isolated from aerial parts of Vinca minor L. (Apocynaceae). The chemical structures of the isolated alkaloids were determined by a combination of MS, HRMS, 1D, and 2D NMR techniques, and by comparison with literature data. The NMR data of several alkaloids have been revised, corrected, and missing data have been supplemented. Alkaloids isolated in sufficient quantity were screened for their in vitro acetylcholinesterase (AChE; E.C. 3.1.1.7) and butyrylcholinesterase (BuChE; E.C. 3.1.1.8) inhibitory activity. Selected compounds were also evaluated for prolyl oligopeptidase (POP; E.C. 3.4.21.26), and glycogen synthase 3β-kinase (GSK-3β; E.C. 2.7.11.26) inhibition potential. Significant hBuChE inhibition activity has been shown by (-)-2-ethyl-3[2-(3-ethylpiperidinyl)-ethyl]-1H-indole with an IC50 value of 0.65 ± 0.16 μM. This compound was further studied by enzyme kinetics, along with in silico techniques, to reveal the mode of inhibition. This compound is also predicted to cross the blood-brain barrier (BBB) through passive diffusion.
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Affiliation(s)
- Rudolf Vrabec
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic; Department of Pharmacognosy, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic
| | - Jana Maříková
- Department of Bioorganic and Organic Chemistry, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic
| | - Miroslav Ločárek
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic
| | - Jan Korábečný
- Department of Toxicology and Military Pharmacy, Trebesska 1575, 500 05, Hradec Kralove, Czech Republic; Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic
| | - Daniela Hulcová
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic; Department of Pharmacognosy, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic
| | - Anna Hošťálková
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic
| | - Jiří Kuneš
- Department of Bioorganic and Organic Chemistry, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic
| | - Jakub Chlebek
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic
| | - Tomáš Kučera
- Department of Toxicology and Military Pharmacy, Trebesska 1575, 500 05, Hradec Kralove, Czech Republic
| | - Martina Hrabinová
- Department of Toxicology and Military Pharmacy, Trebesska 1575, 500 05, Hradec Kralove, Czech Republic
| | - Daniel Jun
- Department of Toxicology and Military Pharmacy, Trebesska 1575, 500 05, Hradec Kralove, Czech Republic
| | - Ondřej Soukup
- Department of Toxicology and Military Pharmacy, Trebesska 1575, 500 05, Hradec Kralove, Czech Republic; Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic
| | - Vincenza Andrisano
- Department for Life Quality Studies, University of Bologna, 47921, Rimini, Italy
| | - Jaroslav Jenčo
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic
| | - Marcela Šafratová
- Department of Pharmacognosy, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic
| | - Lucie Nováková
- Department of Analytical Chemistry, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic
| | - Lubomír Opletal
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic
| | - Lucie Cahlíková
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05, Hradec Kralove, Czech Republic.
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Wojtunik-Kulesza K, Rudkowska M, Kasprzak-Drozd K, Oniszczuk A, Borowicz-Reutt K. Activity of Selected Group of Monoterpenes in Alzheimer's Disease Symptoms in Experimental Model Studies-A Non-Systematic Review. Int J Mol Sci 2021; 22:7366. [PMID: 34298986 PMCID: PMC8306454 DOI: 10.3390/ijms22147366] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 12/19/2022] Open
Abstract
Alzheimer's disease (AD) is the leading cause of dementia and cognitive function impairment. The multi-faced character of AD requires new drug solutions based on substances that incorporate a wide range of activities. Antioxidants, AChE/BChE inhibitors, BACE1, or anti-amyloid platelet aggregation substances are most desirable because they improve cognition with minimal side effects. Plant secondary metabolites, used in traditional medicine and pharmacy, are promising. Among these are the monoterpenes-low-molecular compounds with anti-inflammatory, antioxidant, enzyme inhibitory, analgesic, sedative, as well as other biological properties. The presented review focuses on the pathophysiology of AD and a selected group of anti-neurodegenerative monoterpenes and monoterpenoids for which possible mechanisms of action have been explained. The main body of the article focuses on monoterpenes that have shown improved memory and learning, anxiolytic and sleep-regulating effects as determined by in vitro and in silico tests-followed by validation in in vivo models.
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Affiliation(s)
| | - Monika Rudkowska
- Independent Experimental Neuropathophysiology Unit, Medical University of Lublin, Jaczewskiego 8b, 20-090 Lublin, Poland; (M.R.); (K.B.-R.)
| | - Kamila Kasprzak-Drozd
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland;
| | - Anna Oniszczuk
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland;
| | - Kinga Borowicz-Reutt
- Independent Experimental Neuropathophysiology Unit, Medical University of Lublin, Jaczewskiego 8b, 20-090 Lublin, Poland; (M.R.); (K.B.-R.)
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6
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Herrera-Acevedo C, Perdomo-Madrigal C, Herrera-Acevedo K, Coy-Barrera E, Scotti L, Scotti MT. Machine learning models to select potential inhibitors of acetylcholinesterase activity from SistematX: a natural products database. Mol Divers 2021; 25:1553-1568. [PMID: 34132933 DOI: 10.1007/s11030-021-10245-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/03/2021] [Indexed: 11/29/2022]
Abstract
Alzheimer's disease is the most common form of dementia, representing 60-70% of dementia cases. The enzyme acetylcholinesterase (AChE) cleaves the ester bonds in acetylcholine and plays an important role in the termination of acetylcholine activity at cholinergic synapses in various regions of the nervous system. The inhibition of acetylcholinesterase is frequently used to treat Alzheimer's disease. In this study, a merged BindingDB and ChEMBL dataset containing molecules with reported half-maximal inhibitory concentration (IC50) values for AChE (7032 molecules) was used to build machine learning classification models for selecting potential AChE inhibitors from the SistematX dataset (8593 secondary metabolites). A total of seven fivefold models with accuracy above 80% after cross-validation were obtained using three types of molecular descriptors (VolSurf, DRAGON 5.0, and bit-based fingerprints). A total of 521 secondary metabolites (6.1%) were classified as active in this stage. Subsequently, virtual screening was performed, and 25 secondary metabolites were identified as potential inhibitors of AChE. Separately, the crystal structure of AChE in complex with (-)-galantamine was used to perform molecular docking calculations with the entire SistematX dataset. Consensus analysis of both methodologies was performed. Only eight structures achieved combined probability values above 0.5. Finally, two sesquiterpene lactones, structures 15 and 24, were predicted to be able to cross the blood-brain barrier, which was confirmed in the VolSurf+ quantitative model, revealing these two structures as the most promising secondary metabolites for AChE inhibition among the 8593 molecules tested. A consensus analysis of classification models and molecular docking calculations identified four potential inhibitors of acetylcholinesterase from the SistematX dataset (8593 structures).
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Affiliation(s)
- Chonny Herrera-Acevedo
- Post-Graduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, PB, 58051-900, Brazil.,Bioorganic Chemistry Laboratory, Facultad de Ciencias Básicas y Aplicadas, Universidad Militar Nueva Granada, 250247, Cajicá, Colombia
| | - Camilo Perdomo-Madrigal
- School of Science, Universidad de Ciencias Aplicadas y Ambientales, Calle 222 # 55-37, Bogotá D.C., Colombia
| | - Kenyi Herrera-Acevedo
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Carrera 45 # 26- 85, Bogotá D.C., Colombia
| | - Ericsson Coy-Barrera
- Bioorganic Chemistry Laboratory, Facultad de Ciencias Básicas y Aplicadas, Universidad Militar Nueva Granada, 250247, Cajicá, Colombia
| | - Luciana Scotti
- Post-Graduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Marcus Tullius Scotti
- Post-Graduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, PB, 58051-900, Brazil.
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7
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Discovery of a Novel Acetylcholinesterase Inhibitor by Fragment-Based Design and Virtual Screening. Molecules 2021; 26:molecules26072058. [PMID: 33916760 PMCID: PMC8038331 DOI: 10.3390/molecules26072058] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/27/2021] [Accepted: 03/31/2021] [Indexed: 11/17/2022] Open
Abstract
Despite extensive and intensive research efforts in recent decades, there is still no effective treatment for neurodegenerative diseases. On this background, the use of drugs inhibiting the enzyme acetylcholinesterase (AChE) remains an eternal evergreen in the symptomatic treatment of mild to moderate cognitive impairments. Even more, the cholinergic hypothesis, somewhat forgotten in recent years due to the shift in focus on amyloid cascade, is back to life, and the search for new, more effective AChE inhibitors continues. We generated a fragment-based library containing aromatic moieties and linkers originating from a set of novel AChE inhibitors. We used this library to design 1220 galantamine (GAL) derivatives following the model GAL (binding core) - linker (L) - aromatic fragment (Ar). The newly designed compounds were screened virtually for blood–brain barrier (BBB) permeability and binding to AChE. Among the top 10 best-scored compounds, a representative lead molecule was selected and tested for anti-AChE activity and neurotoxicity. It was found that the selected compound was a powerful non-toxic AChE inhibitor, 68 times more active than GAL, and could serve as a lead molecule for further optimization and development.
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8
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Vignaux PA, Minerali E, Lane TR, Foil DH, Madrid PB, Puhl AC, Ekins S. The Antiviral Drug Tilorone Is a Potent and Selective Inhibitor of Acetylcholinesterase. Chem Res Toxicol 2021; 34:1296-1307. [PMID: 33400519 DOI: 10.1021/acs.chemrestox.0c00466] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Acetylcholinesterase (AChE) is an important drug target in neurological disorders like Alzheimer's disease, Lewy body dementia, and Parkinson's disease dementia as well as for other conditions like myasthenia gravis and anticholinergic poisoning. In this study, we have used a combination of high-throughput screening, machine learning, and docking to identify new inhibitors of this enzyme. Bayesian machine learning models were generated with literature data from ChEMBL for eel and human AChE inhibitors as well as butyrylcholinesterase inhibitors (BuChE) and compared with other machine learning methods. High-throughput screens for the eel AChE inhibitor model identified several molecules including tilorone, an antiviral drug that is well-established outside of the United States, as a newly identified nanomolar AChE inhibitor. We have described how tilorone inhibits both eel and human AChE with IC50's of 14.4 nM and 64.4 nM, respectively, but does not inhibit the closely related BuChE IC50 > 50 μM. We have docked tilorone into the human AChE crystal structure and shown that this selectivity is likely due to the reliance on a specific interaction with a hydrophobic residue in the peripheral anionic site of AChE that is absent in BuChE. We also conducted a pharmacological safety profile (SafetyScreen44) and kinase selectivity screen (SelectScreen) that showed tilorone (1 μM) only inhibited AChE out of 44 toxicology target proteins evaluated and did not appreciably inhibit any of the 485 kinases tested. This study suggests there may be a potential role for repurposing tilorone or its derivatives in conditions that benefit from AChE inhibition.
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Affiliation(s)
- Patricia A Vignaux
- Collaborations Pharmaceuticals, Inc., 840 Main Campus Drive, Lab 3510, Raleigh, North Carolina 27606, United States
| | - Eni Minerali
- Collaborations Pharmaceuticals, Inc., 840 Main Campus Drive, Lab 3510, Raleigh, North Carolina 27606, United States
| | - Thomas R Lane
- Collaborations Pharmaceuticals, Inc., 840 Main Campus Drive, Lab 3510, Raleigh, North Carolina 27606, United States
| | - Daniel H Foil
- Collaborations Pharmaceuticals, Inc., 840 Main Campus Drive, Lab 3510, Raleigh, North Carolina 27606, United States
| | - Peter B Madrid
- SRI International, 333 Ravenswood Avenue, Menlo Park, California 94025, United States
| | - Ana C Puhl
- Collaborations Pharmaceuticals, Inc., 840 Main Campus Drive, Lab 3510, Raleigh, North Carolina 27606, United States
| | - Sean Ekins
- Collaborations Pharmaceuticals, Inc., 840 Main Campus Drive, Lab 3510, Raleigh, North Carolina 27606, United States
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9
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Przybyłowska M, Dzierzbicka K, Kowalski S, Chmielewska K, Inkielewicz-Stepniak I. Therapeutic Potential of Multifunctional Derivatives of Cholinesterase Inhibitors. Curr Neuropharmacol 2021; 19:1323-1344. [PMID: 33342413 PMCID: PMC8719290 DOI: 10.2174/1570159x19666201218103434] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/07/2020] [Accepted: 11/29/2020] [Indexed: 11/22/2022] Open
Abstract
The aim of this work is to review tacrine analogues from the last three years, which were not included in the latest review work, donepezil and galantamine hybrids from 2015 and rivastigmine derivatives from 2014. In this account, we summarize the efforts toward the development and characterization of non-toxic inhibitors of cholinesterases based on mentioned drugs with various interesting additional properties such as antioxidant, decreasing β-amyloid plaque aggregation, nitric oxide production, pro-inflammatory cytokines release, monoamine oxidase-B activity, cytotoxicity and oxidative stress in vitro and in animal model that classify these hybrids as potential multifunctional therapeutic agents for Alzheimer's disease. Moreover, herein, we have described the cholinergic hypothesis, mechanisms of neurodegeneration and current pharmacotherapy of Alzheimer's disease based on the restoration of cholinergic function through blocking enzymes that break down acetylcholine.
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Affiliation(s)
- Maja Przybyłowska
- Department of Organic Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Krystyna Dzierzbicka
- Department of Organic Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Szymon Kowalski
- Department of Pharmaceutical Pathophysiology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Klaudia Chmielewska
- Department of Organic Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Iwona Inkielewicz-Stepniak
- Department of Pharmaceutical Pathophysiology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
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10
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Kohelová E, Maříková J, Korábečný J, Hulcová D, Kučera T, Jun D, Chlebek J, Jenčo J, Šafratová M, Hrabinová M, Ritomská A, Malaník M, Peřinová R, Breiterová K, Kuneš J, Nováková L, Opletal L, Cahlíková L. Alkaloids of Zephyranthes citrina (Amaryllidaceae) and their implication to Alzheimer's disease: Isolation, structural elucidation and biological activity. Bioorg Chem 2020; 107:104567. [PMID: 33387730 DOI: 10.1016/j.bioorg.2020.104567] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/09/2020] [Accepted: 12/15/2020] [Indexed: 11/25/2022]
Abstract
Twenty known Amaryllidaceae alkaloids of various structural types, and one undescribed alkaloid of narcikachnine-type, named narcieliine (3), have been isolated from fresh bulbs of Zephyranthes citrina. The chemical structures of the isolated alkaloids were elucidated by a combination of MS, HRMS, 1D and 2D NMR, and CD spectroscopic techniques, and by comparison with literature data. The absolute configuration of narcieliine (3) has also been determined. Compounds isolated in a sufficient quantity were evaluated for their in vitro acetylcholinesterase (AChE; E.C. 3.1.1.7), butyrylcholinesterase (BuChE; E.C. 3.1.1.8), and prolyl oligopeptidase (POP; E.C. 3.4.21.26) inhibition activities. Significant human AChE/BuChE (hAChE/hBuChE) inhibitory activity was demonstrated by the newly described alkaloid narcieliine (3), with IC50 values of 18.7 ± 2.3 µM and 1.34 ± 0.31 µM, respectively. This compound is also predicted to cross the blood-brain barrier (BBB) through passive diffusion. The in vitro data were further supported by in silico studies of 3 in the active site of hAChE/hBuChE.
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Affiliation(s)
- Eliška Kohelová
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Jana Maříková
- Department of Bioorganic and Organic Chemistry, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Jan Korábečný
- Department of Toxicology and Military Pharmacy, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Daniela Hulcová
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic; Department of Pharmacognosy, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Tomáš Kučera
- Department of Toxicology and Military Pharmacy, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic
| | - Daniel Jun
- Department of Toxicology and Military Pharmacy, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Jakub Chlebek
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Jaroslav Jenčo
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Marcela Šafratová
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic; Department of Pharmacognosy, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Martina Hrabinová
- Department of Toxicology and Military Pharmacy, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Aneta Ritomská
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Milan Malaník
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, Palackého třída 1946/1, 61200 Brno, Czech Republic
| | - Rozálie Peřinová
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Kateřina Breiterová
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Jiří Kuneš
- Department of Bioorganic and Organic Chemistry, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Lucie Nováková
- Department of Analytical Chemistry, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Lubomír Opletal
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Lucie Cahlíková
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic.
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11
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Philipova I, Stavrakov G, Dimitrov V, Vassilev N. Galantamine derivatives: Synthesis, NMR study, DFT calculations and application in asymmetric catalysis. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Stavrakov G, Philipova I, Lukarski A, Atanasova M, Zheleva D, Zhivkova ZD, Ivanov S, Atanasova T, Konstantinov S, Doytchinova I. Galantamine-Curcumin Hybrids as Dual-Site Binding Acetylcholinesterase Inhibitors. Molecules 2020; 25:E3341. [PMID: 32717861 PMCID: PMC7435983 DOI: 10.3390/molecules25153341] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 07/16/2020] [Accepted: 07/21/2020] [Indexed: 02/07/2023] Open
Abstract
Galantamine (GAL) and curcumin (CU) are alkaloids used to improve symptomatically neurodegenerative conditions like Alzheimer's disease (AD). GAL acts mainly as an inhibitor of the enzyme acetylcholinesterase (AChE). CU binds to amyloid-beta (Aβ) oligomers and inhibits the formation of Aβ plaques. Here, we combine GAL core with CU fragments and design a combinatorial library of GAL-CU hybrids as dual-site binding AChE inhibitors. The designed hybrids are screened for optimal ADME properties and BBB permeability and docked on AChE. The 14 best performing compounds are synthesized and tested in vitro for neurotoxicity and anti-AChE activity. Five of them are less toxic than GAL and CU and show activities between 41 and 186 times higher than GAL.
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Affiliation(s)
- Georgi Stavrakov
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (A.L.); (M.A.); (D.Z.); (Z.D.Z.); (S.I.); (T.A.); (S.K.)
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Irena Philipova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Atanas Lukarski
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (A.L.); (M.A.); (D.Z.); (Z.D.Z.); (S.I.); (T.A.); (S.K.)
| | - Mariyana Atanasova
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (A.L.); (M.A.); (D.Z.); (Z.D.Z.); (S.I.); (T.A.); (S.K.)
| | - Dimitrina Zheleva
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (A.L.); (M.A.); (D.Z.); (Z.D.Z.); (S.I.); (T.A.); (S.K.)
| | - Zvetanka D. Zhivkova
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (A.L.); (M.A.); (D.Z.); (Z.D.Z.); (S.I.); (T.A.); (S.K.)
| | - Stefan Ivanov
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (A.L.); (M.A.); (D.Z.); (Z.D.Z.); (S.I.); (T.A.); (S.K.)
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, MD 20850, USA
| | - Teodora Atanasova
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (A.L.); (M.A.); (D.Z.); (Z.D.Z.); (S.I.); (T.A.); (S.K.)
| | - Spiro Konstantinov
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (A.L.); (M.A.); (D.Z.); (Z.D.Z.); (S.I.); (T.A.); (S.K.)
| | - Irini Doytchinova
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (A.L.); (M.A.); (D.Z.); (Z.D.Z.); (S.I.); (T.A.); (S.K.)
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13
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Peřinová R, Maafi N, Korábečný J, Kohelová E, De Simone A, Al Mamun A, Hulcová D, Marková J, Kučera T, Jun D, Šafratová M, Maříková J, Andrisano V, Jenčo J, Kuneš J, Martinez A, Nováková L, Cahlíková L. Functionalized aromatic esters of the Amaryllidaceae alkaloid haemanthamine and their in vitro and in silico biological activity connected to Alzheimer's disease. Bioorg Chem 2020; 100:103928. [PMID: 32450384 DOI: 10.1016/j.bioorg.2020.103928] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 12/19/2022]
Abstract
A novel series of aromatic esters (1a-1m) related to the Amaryllidaceae alkaloid (AA) haemanthamine were designed, synthesized and tested in vitro with particular emphasis on the treatment of neurodegenerative diseases. Some of the synthesized compounds revealed promising acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) inhibitory profile. Significant human AChE (hAChE) inhibition was demonstrated by 11-O-(3-nitrobenzoyl)haemanthamine (1j) with IC50value of 4.0 ± 0.3 µM. The strongest human BuChE (hBuChE) inhibition generated 1-O-(2-methoxybenzoyl)haemanthamine (1g) with IC50 value 3.3 ± 0.4 µM. Moreover, 11-O-(2-chlorbenzoyl)haemanthamine (1m) was able to inhibit both enzymes in dose-dependent manner. The mode of hAChE and hBuChE inhibition was minutely inspected using enzyme kinetic analysis in tandem with in silico experiments, the latter elucidating crucial interaction in 1j-, 1m-hAChE and 1g-, 1m-hBuChE complexes. The blood-brain barrier (BBB) permeability was investigated applying the parallel artificial membrane permeation assay (PAMPA) to predict the CNS availability of the compounds.
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Affiliation(s)
- Rozálie Peřinová
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Negar Maafi
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Jan Korábečný
- Department of Toxicology and Military Pharmacy, University of Defence, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Eliška Kohelová
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Angela De Simone
- Department for Life Quality Studies, University of Bologna, Corso D'Augusto 237, 47921 Rimini, Italy
| | - Abdullah Al Mamun
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Daniela Hulcová
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic; Department of Pharmacognosy, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Jana Marková
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Tomáš Kučera
- Department of Toxicology and Military Pharmacy, University of Defence, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic
| | - Daniel Jun
- Department of Toxicology and Military Pharmacy, University of Defence, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic
| | - Marcela Šafratová
- Department of Pharmacognosy, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Jana Maříková
- Department of Bioorganic and Organic Chemistry, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Vincenza Andrisano
- Department for Life Quality Studies, University of Bologna, Corso D'Augusto 237, 47921 Rimini, Italy
| | - Jaroslav Jenčo
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Jiří Kuneš
- Department of Bioorganic and Organic Chemistry, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Ana Martinez
- Centro de Investigaciones Biológicas-CSIC, Avenida Ramiro de Maeztu, 9, 28040 Madrid, Spain
| | - Lucie Nováková
- Department of Analytical Chemistry, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Lucie Cahlíková
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic.
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14
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Xie J, Liang R, Wang Y, Huang J, Cao X, Niu B. Progress in Target Drug Molecules for Alzheimer's Disease. Curr Top Med Chem 2020; 20:4-36. [DOI: 10.2174/1568026619666191203113745] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 10/20/2019] [Accepted: 10/31/2019] [Indexed: 12/25/2022]
Abstract
Alzheimer's disease (AD) is a chronic neurodegenerative disease that 4 widespread in the elderly.
The etiology of AD is complicated, and its pathogenesis is still unclear. Although there are many
researches on anti-AD drugs, they are limited to reverse relief symptoms and cannot treat diseases.
Therefore, the development of high-efficiency anti-AD drugs with no side effects has become an urgent
need. Based on the published literature, this paper summarizes the main targets of AD and their drugs,
and focuses on the research and development progress of these drugs in recent years.
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Affiliation(s)
- Jiayang Xie
- School of Life Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Ruirui Liang
- School of Life Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Yajiang Wang
- School of Life Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Junyi Huang
- School of Life Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Xin Cao
- Zhongshan Hospital Institute of Clinical Science, Fudan University Shanghai Medical College, Shanghai, China
| | - Bing Niu
- School of Life Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China
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15
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Habtemariam S. Natural Products in Alzheimer's Disease Therapy: Would Old Therapeutic Approaches Fix the Broken Promise of Modern Medicines? Molecules 2019; 24:molecules24081519. [PMID: 30999702 PMCID: PMC6514598 DOI: 10.3390/molecules24081519] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 04/15/2019] [Accepted: 04/16/2019] [Indexed: 12/30/2022] Open
Abstract
Despite extensive progress in understanding the pathology of Alzheimer's disease (AD) over the last 50 years, clinical trials based on the amyloid-beta (Aβ) hypothesis have kept failing in late stage human trials. As a result, just four old drugs of limited clinical outcomes and numerous side effects are currently used for AD therapy. This article assesses the common pharmacological targets and therapeutic principles for current and future drugs. It also underlines the merits of natural products acting through a polytherapeutic approach over a monotherapy option of AD therapy. Multi-targeting approaches through general antioxidant and anti-inflammatory mechanisms coupled with specific receptor and/or enzyme-mediated effects in neuroprotection, neuroregeneration, and other rational perspectives of novel drug discovery are emphasized.
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Affiliation(s)
- Solomon Habtemariam
- Pharmacognosy Research Laboratories & Herbal Analysis Services UK, University of Greenwich, Central Avenue, Chatham-Maritime, Kent ME4 4TB, UK.
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16
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Doytchinova I, Atanasova M, Valkova I, Stavrakov G, Philipova I, Zhivkova Z, Zheleva-Dimitrova D, Konstantinov S, Dimitrov I. Novel hits for acetylcholinesterase inhibition derived by docking-based screening on ZINC database. J Enzyme Inhib Med Chem 2018; 33:768-776. [PMID: 29651876 PMCID: PMC6010092 DOI: 10.1080/14756366.2018.1458031] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 03/23/2018] [Accepted: 03/23/2018] [Indexed: 11/08/2022] Open
Abstract
The inhibition of the enzyme acetylcholinesterase (AChE) increases the levels of the neurotransmitter acetylcholine and symptomatically improves the affected cognitive function. In the present study, we searched for novel AChE inhibitors by docking-based virtual screening of the standard lead-like set of ZINC database containing more than 6 million small molecules using GOLD software. The top 10 best-scored hits were tested in vitro for AChE affinity, neurotoxicity, GIT and BBB permeability. The main pharmacokinetic parameters like volume of distribution, free fraction in plasma, total clearance, and half-life were predicted by previously derived models. Nine of the compounds bind to the enzyme with affinities from 0.517 to 0.735 µM, eight of them are non-toxic. All hits permeate GIT and BBB and bind extensively to plasma proteins. Most of them are low-clearance compounds. In total, seven of the 10 hits are promising for further lead optimisation. These are structures with ZINC IDs: 00220177, 44455618, 66142300, 71804814, 72065926, 96007907, and 97159977.
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Affiliation(s)
- Irini Doytchinova
- Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
- Drug Design and Development Lab, Sofia Tech Park, Sofia, Bulgaria
| | | | - Iva Valkova
- Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
- Drug Design and Development Lab, Sofia Tech Park, Sofia, Bulgaria
| | - Georgi Stavrakov
- Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Irena Philipova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | | | | | | | - Ivan Dimitrov
- Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
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17
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Habtemariam S. Iridoids and Other Monoterpenes in the Alzheimer's Brain: Recent Development and Future Prospects. Molecules 2018; 23:molecules23010117. [PMID: 29316661 PMCID: PMC6017424 DOI: 10.3390/molecules23010117] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 01/04/2018] [Accepted: 01/05/2018] [Indexed: 12/14/2022] Open
Abstract
Iridoids are a class of monoterpenoid compounds constructed from 10-carbon skeleton of isoprene building units. These compounds in their aglycones and glycosylated forms exist in nature to contribute to mechanisms related to plant defenses and diverse plant-animal interactions. Recent studies have also shown that iridoids and other structurally related monoterpenes display a vast array of pharmacological effects that make them potential modulators of the Alzheimer’s disease (AD). This review critically evaluates the therapeutic potential of these natural products by assessing key in vitro and in vivo data published in the scientific literature. Mechanistic approach of scrutiny addressing their effects in the Alzheimer’s brain including the τ-protein phosphorylation signaling, amyloid beta (Aβ) formation, aggregation, toxicity and clearance along with various effects from antioxidant to antiinflammatory mechanisms are discussed. The drug likeness of these compounds and future prospects to consider in their development as potential leads are addressed.
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Affiliation(s)
- Solomon Habtemariam
- Pharmacognosy Research Laboratories & Herbal Analysis Services, University of Greenwich, Central Avenue, Chatham-Maritime, Kent ME4 4TB, UK.
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18
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de la Tremblaye PB, Wellcome JL, de Witt BW, Cheng JP, Skidmore ER, Bondi CO, Kline AE. Rehabilitative Success After Brain Trauma by Augmenting a Subtherapeutic Dose of Environmental Enrichment With Galantamine. Neurorehabil Neural Repair 2017; 31:977-985. [PMID: 29130805 DOI: 10.1177/1545968317739999] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Environmental enrichment (EE) confers benefits after traumatic brain injury (TBI) when provided daily for > 6 hours, but not 2 or 4 hours, which more accurately reflects the daily amount of clinical rehabilitation. The lack of benefit with sub-therapeutic EE suggests that augmentation with galantamine (GAL), which enhances cognition after TBI, may be indicated to confer benefits. OBJECTIVE To test the hypothesis that 2 and 4 hours of EE paired with GAL will provide benefits comparable to 24 hours of EE alone. Moreover, all EE groups will perform better than the standard (STD)-housed GAL group. METHODS Anesthetized rats received a TBI or sham injury and then were randomized to receive intraperitoneal injections of GAL (2 mg/kg) or saline vehicle (VEH; 1 mL/kg) beginning 24 hours after surgery and once daily while receiving EE for 2, 4, or 24 hours. Motor and cognitive assessments were conducted on postoperative days 1-5 and 14-19, respectively. RESULTS Motor function was significantly improved in the TBI + 24-hour EE group versus the TBI + STD + VEH and TBI + STD + GAL groups ( P < .05). Cognitive performance was enhanced in all EE groups as well as in the TBI + STD + GAL versus TBI + STD + VEH ( P < .05). Moreover, the 2- and 4-hour EE groups receiving GAL did not differ from the 24-hour EE group ( P > .05) and performed better than GAL alone ( P < .05). CONCLUSIONS The findings support the hypothesis and have clinical relevance because, often, only brief rehabilitation may be available in the clinic and, thus, augmenting with a pharmacotherapy such as GAL may lead to outcomes that are significantly better than either therapy alone.
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Affiliation(s)
| | | | - Benjamin Wells de Witt
- 1 University of Pittsburgh, Pittsburgh, PA, USA.,2 Allegheny General Hospital, Pittsburgh, PA, USA
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