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Senol Deniz FS, Ekhteiari Salmas R, Emerce E, Sener B, Orhan IE. Cholinesterase Inhibitory and In Silico Toxicity Assessment of Thirty-Four Isoquinoline Alkaloids - Berberine as the Lead Compound. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2024; 23:773-783. [PMID: 37073143 DOI: 10.2174/1871527322666230417083053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 01/21/2023] [Accepted: 01/24/2023] [Indexed: 04/20/2023]
Abstract
BACKGROUND Cholinesterase (ChE) inhibitors used currently in clinics for the treatment of Alzheimer's disease (AD) are the most prescribed drug class with nitrogen-containing chemical formula. Galanthamine, the latest generation anti-ChE drug, contains an isoquinoline structure. OBJECTIVE The aim of the current study was to investigate the inhibitory potential of thirty-four isoquinoline alkaloids, e.g. (-)-adlumidine, β-allocryptopine, berberine, (+)-bicuculline, (-)-bicuculline, (+)-bulbocapnine, (-)-canadine, (±)-chelidimerine, corydaldine, (±)-corydalidzine, (-)-corydalmine, (+)-cularicine, dehydrocavidine, (+)-fumariline, (-)-fumarophycine, (+)-α-hydrastine, (+)-isoboldine, 13-methylcolumbamine, (-)-norjuziphine, norsanguinarine, (-)-ophiocarpine, (-)-ophiocarpine-Noxide, oxocularine, oxosarcocapnine, palmatine, (+)-parfumine, protopine, (+)-reticuline, sanguinarine, (+)-scoulerine, (±)-sibiricine, (±)-sibiricine acetate, (-)-sinactine, and (-)-stylopine isolated from several Fumaria (fumitory) and Corydalis species towards acetyl- (AChE) and butyrylcholinesterase (BChE) by microtiter plate assays. The alkaloids with strong ChE inhibition were proceeded to molecular docking simulations as well as in silico toxicity screening for their mutagenic capacity through VEGA QSAR (AMES test) consensus model and VEGA platform as statistical approaches. The inputs were evaluated in a simplified molecular input-line entry system (SMILES). METHODS ChE inhibition assays indicated that the highest AChE inhibition was caused by berberine (IC50: 0.72 ± 0.04 μg/mL), palmatine (IC50: 6.29 ± 0.61 μg/mL), β-allocryptopine (IC50: 10.62 ± 0.45 μg/mL), (-)-sinactine (IC50: 11.94 ± 0.44 μg/mL), and dehydrocavidine (IC50: 15.01 ± 1.87 μg/mL) as compared to that of galanthamine (IC50: 0.74 ± 0.01 μg/mL), the reference drug with isoquinoline skeleton. Less number of the tested alkaloids exhibited notable BChE inhibition. Among them, berberine (IC50: 7.67 ± 0.36 μg/mL) and (-)-corydalmine (IC50: 7.78 ± 0.38 μg/mL) displayed a stronger inhibition than that of galanthamine (IC50: 12.02 ± 0.25 μg/mL). The mutagenic activity was shown for β-allocryptopine, (+)- and (-)-bicuculline, (±)-corydalidzine, (-)-corydalmine, (+)-cularicine, (-)- fumarophycine, (-)-norjuziphine, (-)-ophiocarpine-N-oxide, (+)-scoulerine, (-)-sinactine, and (-)- stylopine by means of in silico experiments. RESULTS The results obtained by molecular docking simulations of berberine, palmatine, and (-)- corydalmine suggested that the estimated free ligand-binding energies of these compounds inside the binding domains of their targets are reasonable to make them capable of establishing strong polar and nonpolar bonds with the atoms of the active site amino acids. CONCLUSION Our findings revealed that berberine, palmatin, and (-)-corydalmine stand out as the most promising isoquinoline alkaloids in terms of ChE inhibition. Among them, berberine has displayed a robust dual inhibition against both ChEs and could be evaluated further as a lead compound for AD.
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Affiliation(s)
- F Sezer Senol Deniz
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, Ankara 06330, Türkiye
| | | | - Esra Emerce
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Gazi University, Ankara 06330, Türkiye
| | - Bilge Sener
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, Ankara 06330, Türkiye
| | - Ilkay Erdogan Orhan
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, Ankara 06330, Türkiye
- Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, No. 112, Ankara 06670, Türkiye
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Murray AP, Biscussi B, Cavallaro V, Donozo M, Rodriguez SA. Naturally Occurring Cholinesterase Inhibitors from Plants, Fungi, Algae, and Animals: A Review of the Most Effective Inhibitors Reported in 2012-2022. Curr Neuropharmacol 2024; 22:1621-1649. [PMID: 37357520 DOI: 10.2174/1570159x21666230623105929] [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: 01/16/2023] [Revised: 02/11/2023] [Accepted: 02/26/2023] [Indexed: 06/27/2023] Open
Abstract
Since the development of the "cholinergic hypothesis" as an important therapeutic approach in the treatment of Alzheimer's disease (AD), the scientific community has made a remarkable effort to discover new and effective molecules with the ability to inhibit the enzyme acetylcholinesterase (AChE). The natural function of this enzyme is to catalyze the hydrolysis of the neurotransmitter acetylcholine in the brain. Thus, its inhibition increases the levels of this neurochemical and improves the cholinergic functions in patients with AD alleviating the symptoms of this neurological disorder. In recent years, attention has also been focused on the role of another enzyme, butyrylcholinesterase (BChE), mainly in the advanced stages of AD, transforming this enzyme into another target of interest in the search for new anticholinesterase agents. Over the past decades, Nature has proven to be a rich source of bioactive compounds relevant to the discovery of new molecules with potential applications in AD therapy. Bioprospecting of new cholinesterase inhibitors among natural products has led to the discovery of an important number of new AChE and BChE inhibitors that became potential lead compounds for the development of anti-AD drugs. This review summarizes a total of 260 active compounds from 142 studies which correspond to the most relevant (IC50 ≤ 15 μM) research work published during 2012-2022 on plant-derived anticholinesterase compounds, as well as several potent inhibitors obtained from other sources like fungi, algae, and animals.
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Affiliation(s)
- Ana Paula Murray
- INQUISUR-CONICET, Departamento de Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Brunella Biscussi
- INQUISUR-CONICET, Departamento de Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Valeria Cavallaro
- INQUISUR-CONICET, Departamento de Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Martina Donozo
- INQUISUR-CONICET, Departamento de Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Silvana A Rodriguez
- INQUISUR-CONICET, Departamento de Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
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3
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Leong ST, Liew SY, Khaw KY, Ahmad Hassali H, Richomme P, Derbré S, Lee VS, Yahya R, Awang K. 13C NMR-based dereplication using MixONat software to decipher potent anti-cholinesterase compounds in Mesua lepidota bark. Bioorg Chem 2023; 141:106859. [PMID: 37742494 DOI: 10.1016/j.bioorg.2023.106859] [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: 04/29/2023] [Revised: 08/26/2023] [Accepted: 09/09/2023] [Indexed: 09/26/2023]
Abstract
A bio-assay guided fractionation strategy based on cholinesterase assay combined with 13C NMR-based dereplication was used to identify active metabolites from the bark of Mesua lepidota. Eight compounds were identified with the aid of the 13C NMR-based dereplication software, MixONat, i.e., sitosterol (1), stigmasterol (2), α-amyrin (3), friedelin (6), 3β-friedelinol (7), betulinic acid (9), lepidotol A (10) and lepidotol B (11). Further bio-assay guided isolation of active compounds afforded one xanthone, pyranojacareubin (12) and six coumarins; lepidotol A (10), lepidotol B (11), lepidotol E (13), lepidotin A (14), and lepidotin B (15), including a new Mammea coumarin, lepidotin C (16). All the metabolites showed strong to moderate butyrylcholinesterase (BChE) inhibition. Lepidotin B (15) exhibited the most potent inhibition towards BChE with a mix-mode inhibition profile and a Ki value of 1.03 µM. Molecular docking and molecular dynamics simulations have revealed that lepidotin B (15) forms stable interactions with key residues within five critical regions of BChE. These regions encompass residues Asp70 and Tyr332, the acyl hydrophobic pocket marked by Leu286, the catalytic triad represented by Ser198 and His438, the oxyanion hole (OH) constituted by Gly116 and Gly117, and the choline binding site featuring Trp82. To gauge the binding strength of lepidotin B (15) and to pinpoint pivotal residues at the binding interface, free energy calculations were conducted using the Molecular Mechanics Generalized Born Surface Area (MM-GBSA) approach. This analysis not only predicted a favourable binding affinity for lepidotin B (15) but also facilitated the identification of significant residues crucial for the binding interaction.
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Affiliation(s)
- Sow Tein Leong
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Sook Yee Liew
- Chemistry Division, Centre for Foundation Studies in Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia; Centre for Natural Products Research and Drug Discovery (CENAR), Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Kooi Yeong Khaw
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, 47500 Subang Jaya, Selangor Darul Ehsan, Malaysia
| | - Hazlina Ahmad Hassali
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia; Medical Technology Division, Malaysian Nuclear Agency, 43000 Kajang, Selangor Darul Ehsan, Malaysia
| | | | | | - Vannajan Sanghiran Lee
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Ruzanna Yahya
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Khalijah Awang
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia; Centre for Natural Products Research and Drug Discovery (CENAR), Universiti Malaya, 50603 Kuala Lumpur, Malaysia.
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Husna Hasnan MH, Sivasothy Y, Khaw KY, Nafiah MA, Hazni H, Litaudon M, Wan Ruzali WA, Liew SY, Awang K. N-Methyl Costaricine and Costaricine, Two Potent Butyrylcholinesterase Inhibitors from Alseodaphne pendulifolia Gamb. Int J Mol Sci 2023; 24:10699. [PMID: 37445877 DOI: 10.3390/ijms241310699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/19/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023] Open
Abstract
Studies have been conducted over the last decade to identify secondary metabolites from plants, in particular those from the class of alkaloids, for the development of new anti-Alzheimer's disease (AD) drugs. The genus Alseodaphne, comprising a wide range of alkaloids, is a promising source for the discovery of new cholinesterase inhibitors, the first-line treatment for AD. With regard to this, a phytochemical investigation of the dichloromethane extract of the bark of A. pendulifolia Gamb. was conducted. Repeated column chromatography and preparative thin-layer chromatography led to the isolation of a new bisbenzylisoquinoline alkaloid, N-methyl costaricine (1), together with costaricine (2), hernagine (3), N-methyl hernagine (4), corydine (5), and oxohernagine (6). Their structures were elucidated by the 1D- and 2D-NMR techniques and LCMS-IT-TOF analysis. Compounds 1 and 2 were more-potent BChE inhibitors than galantamine with IC50 values of 3.51 ± 0.80 µM and 2.90 ± 0.56 µM, respectively. The Lineweaver-Burk plots of compounds 1 and 2 indicated they were mixed-mode inhibitors. Compounds 1 and 2 have the potential to be employed as lead compounds for the development of new drugs or medicinal supplements to treat AD.
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Affiliation(s)
- Muhammad Hafiz Husna Hasnan
- Chemistry Division, Centre for Foundation Studies in Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Yasodha Sivasothy
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Malaysia
| | - Kooi Yeong Khaw
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Malaysia
| | - Mohd Azlan Nafiah
- Department of Chemistry, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Tanjung Malim 35900, Malaysia
| | - Hazrina Hazni
- Centre for Natural Products Research and Drug Discovery (CENAR), Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, CNRS, UPR 2301, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Wan Adriyani Wan Ruzali
- Chemistry Division, Centre for Foundation Studies in Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Sook Yee Liew
- Chemistry Division, Centre for Foundation Studies in Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Centre for Natural Products Research and Drug Discovery (CENAR), Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Khalijah Awang
- Centre for Natural Products Research and Drug Discovery (CENAR), Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Department of Chemistry, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
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Current trends in natural products for the treatment and management of dementia: Computational to clinical studies. Neurosci Biobehav Rev 2023; 147:105106. [PMID: 36828163 DOI: 10.1016/j.neubiorev.2023.105106] [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: 06/07/2022] [Revised: 02/17/2023] [Accepted: 02/18/2023] [Indexed: 02/24/2023]
Abstract
The number of preclinical and clinical studies evaluating natural products-based management of dementia has gradually increased, with an exponential rise in 2020 and 2021. Keeping this in mind, we examined current trends from 2016 to 2021 in order to assess the growth potential of natural products in the treatment of dementia. Publicly available literature was collected from various databases like PubMed and Google Scholar. Oxidative stress-related targets, NF-κB pathway, anti-tau aggregation, anti-AChE, and A-β aggregation were found to be common targets and pathways. A retrospective analysis of 33 antidementia natural compounds identified 125 sustainable resources distributed among 65 families, 39 orders, and 7 classes. We found that families such as Berberidaceae, Zingiberaceae, and Fabaceae, as well as orders such as Lamiales, Sapindales, and Myrtales, appear to be important and should be researched further for antidementia compounds. Moreover, some natural products, such as quercetin, curcumin, icariside II, berberine, and resveratrol, have a wide range of applications. Clinical studies and patents support the importance of dietary supplements and natural products, which we will also discuss. Finally, we conclude with the broad scope, future challenges, and opportunities for field researchers.
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Manh Ha N, The Son N. The Genus Cryptocarya: A Review on Phytochemistry and Pharmacological Activities. Chem Biodivers 2023; 20:e202201102. [PMID: 36759327 DOI: 10.1002/cbdv.202201102] [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: 11/20/2022] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 02/11/2023]
Abstract
Cryptocarya (the laurel family) is a large genus of great economic plants found in tropics and subtropics. Plants of this genus are a rich resource of essential oils, and pharmacological compounds. An overview of phytochemistry and pharmacological aspect is not yet available. This review aims to establish insightful information on phytochemistry, and pharmacological values. The literature collection is based on keywords 'Cryptocarya', 'phytochemistry', and 'pharmacology' using a broad panel of scientific sources, such as Google Scholar, Sciencedirect, and Wiley. Since the 1950s, Cryptocarya plants have been the main object in various phytochemical studies, by which about 390 metabolite compounds were isolated. Alkaloids, α-pyrones, and flavonoids could be seen as the main classes of Cryptocarya isolates. Cryptocarya constituents displayed potential pharmacological values such as anti-inflammatory, antimicrobial, antioxidative, antiviral, vasorelaxant activities, especially cytotoxicity.
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Affiliation(s)
- Nguyen Manh Ha
- Faculty of Chemical Technology, Hanoi University of Industry, 298 Cau Dien, North Tu Liem, Hanoi 10000, Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi 1000, Vietnam
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( S)- N-Benzyl-1-phenyl-3,4-dihydroisoqunoline-2(1 H)-carboxamide Derivatives, Multi-Target Inhibitors of Monoamine Oxidase and Cholinesterase: Design, Synthesis, and Biological Activity. Molecules 2023; 28:molecules28041654. [PMID: 36838642 PMCID: PMC9967051 DOI: 10.3390/molecules28041654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/28/2023] [Accepted: 02/02/2023] [Indexed: 02/11/2023] Open
Abstract
A series of (S)-1-phenyl-3,4-dihydroisoquinoline-2(1H)-carboxamide derivatives was synthesized and evaluated for inhibitory activity against monoamine oxidase (MAO)-A and-B, acetylcholine esterase (AChE), and butyrylcholine esterase (BChE). Four compounds (2i, 2p, 2t, and 2v) showed good inhibitory activity against both MAO-A and MAO-B, and two compounds (2d and 2j) showed selective inhibitory activity against MAO-A, with IC50 values of 1.38 and 2.48 µM, respectively. None of the compounds showed inhibitory activity against AChE; however, 12 compounds showed inhibitory activity against BChE. None of the active compounds showed cytotoxicity against L929cells. Molecular docking revealed several important interactions between the active analogs and amino acid residues of the protein receptors. This research paves the way for further study aimed at designing MAO and ChE inhibitors for the treatment of depression and neurodegenerative disorders.
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Smyrska-Wieleba N, Mroczek T. Natural Inhibitors of Cholinesterases: Chemistry, Structure-Activity and Methods of Their Analysis. Int J Mol Sci 2023; 24:ijms24032722. [PMID: 36769043 PMCID: PMC9916849 DOI: 10.3390/ijms24032722] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
This article aims to provide an updated description and comparison of the data currently available in the literature (from the last 15 years) on the studied natural inhibitors of cholinesterases (IChEs), namely, acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). These data also apply to the likely impact of the structures of the compounds on the therapeutic effects of available and potential cholinesterase inhibitors. IChEs are hitherto known compounds with various structures, activities and origins. Additionally, multiple different methods of analysis are used to determine the cholinesterase inhibitor potency. This summary indicates that natural sources are still suitable for the discovery of new compounds with prominent pharmacological activity. It also emphasizes that further studies are needed regarding the mechanisms of action or the structure-activity correlation to discuss the issue of cholinesterase inhibitors and their medical application.
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Wan Othman WNN, Salim F, Abdullah NN, Abu Bakar SI, Awang K, Jayasinghe L, Ismail NH. ( R)-13a α-Densiindolizidine, A New Phenanthroindolizidine Alkaloid From Cryptocarya densiflora Blume (Lauraceae) and Molecular Docking Against SARS-CoV-2. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221114227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Cryptocarya densiflora Blume (Lauraceae) is an evergreen tree widely distributed throughout the hills and mountain forests up to 1500 m in Malaysia and Indonesia. The plant has been reported to contain phenanthroindolizidine-type of alkaloids. In the present work, a new phenanthroindolizidine alkaloid named ( R)-13a α-densiindolizidine, was isolated from the dichloromethane (DCM) extract of the leaves. The structure of the alkaloid was established based on 1D and 2D nuclear magnetic resonance (NMR) and liquid chromatography mass spectrometry-ion trap-time of flight (LCMS-IT-TOF) analysis. ( R)-13a α-densiindolizidine displayed binding interactions with crucial amino acid residues in the active sites ofsevere acute respiratory syndrome coronavirus 2 Mpro (SARS-CoV-2 Mpro) and RNA-dependent protease (RdRp) in silico, whilst fulfilling theabsorption, distribution, metabolism, excretion, and toxicity (ADMET) criteria and Lipinsky's rule, thus revealing its potential as a lead compound.
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Affiliation(s)
- Wan N Nazneem Wan Othman
- Atta-ur-Rahman Institute for Natural Products Discovery, Universiti Teknologi MARA, Bandar Puncak Alam, Selangor, Malaysia
| | - Fatimah Salim
- Atta-ur-Rahman Institute for Natural Products Discovery, Universiti Teknologi MARA, Bandar Puncak Alam, Selangor, Malaysia
- Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
| | - Nor N Abdullah
- Atta-ur-Rahman Institute for Natural Products Discovery, Universiti Teknologi MARA, Bandar Puncak Alam, Selangor, Malaysia
- Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
| | - Syahrul I Abu Bakar
- Atta-ur-Rahman Institute for Natural Products Discovery, Universiti Teknologi MARA, Bandar Puncak Alam, Selangor, Malaysia
- Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
| | - Khalijah Awang
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Nor H Ismail
- Atta-ur-Rahman Institute for Natural Products Discovery, Universiti Teknologi MARA, Bandar Puncak Alam, Selangor, Malaysia
- Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
- National Institute of Fundamental Studies, Kandy, Sri Lanka
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Rayanil KO, Prempree C, Nimgirawath S. First Total Syntheses of Natural Phenanthrene Alkaloids, Uvariopsamine, Noruvariopsamine, 8-Hydroxystephenanthrine, 8-Methoxyuvariopsine, Thalihazine, and Secophoebine, and Their Potential as Antimalarial Agents. Chem Pharm Bull (Tokyo) 2022; 70:483-491. [PMID: 35786567 DOI: 10.1248/cpb.c22-00140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The first total syntheses of natural phenanthrene alkaloids, namely, uvariopsamine (1), noruvariopsamine (2), 8-hydroxystephenanthrine (3), 8-methoxyuvariopsine (4), thalihazine (5), and secophoebine (6), have been realized. In addition, their in vitro antimalarial activity against the multidrug-resistant K1 strain of Plasmodium falciparum and in vitro cytotoxic activity against the human nasopharynx carcinoma (KB), small cell lung cancer (NCI-H187), and breast cancer (MCF7) human cancer cell lines were investigated. All the phenanthrene alkaloids showed significant antiplasmodial activity (IC50 1.07-7.41 µM), and most compounds displayed low to no toxicity against the three cancer cell lines tested. Particularly, 3 exhibited the best antimalarial activity with an IC50 value of 1.07 µM, no toxicity to NCI-H187 (IC50 > 50 µM), and low toxicity against KB (IC50 24.53 µM) and MCF7 (IC50 42.67 µM) cell lines.
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Affiliation(s)
- Kanok-On Rayanil
- Department of Chemistry, Faculty of Science, Silpakorn University
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He Q, Li S, Fan Y, Liu Y, Su Y, Zhou Z, Zhang YN, Li GL, Rao L, Zhang CR. Complex Flavanones from Cryptocarya metcalfiana and Structural Revision of Oboflavanone A. JOURNAL OF NATURAL PRODUCTS 2022; 85:1617-1625. [PMID: 35635020 DOI: 10.1021/acs.jnatprod.2c00279] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Nine new complex flavanones, cryptometcones A-I (1-9), along with four known analogues, were isolated from Cryptocarya metcalfiana. The structures of 1-9 including their absolute configurations were elucidated by spectroscopic data analysis and electronic circular dichroism (ECD) calculations. In addition, the structure of oboflavanone A was revised, while the absolute configurations of oboflavanone B, cryptoflavanone C, and cryptoflavanone D were determined, according to their spectroscopic data. Compounds 3-5, 8, and 9 exhibited cytotoxicity against the HCT-116 cancer cell line.
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Affiliation(s)
- Qian He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Simin Li
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, People's Republic of China
| | - Yue Fan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yu Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yu Su
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Zhen Zhou
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yi-Nan Zhang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, People's Republic of China
| | - Guo-Li Li
- Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing Three Gorges Medical College, Chongqing 404120, People's Republic of China
| | - Li Rao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Chuan-Rui Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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Tuzimski T, Petruczynik A, Szultka-Młyńska M, Sugajski M, Buszewski B. Isoquinoline Alkaloid Contents in Macleaya cordata Extracts and Their Acetylcholinesterase and Butyrylcholinesterase Inhibition. Molecules 2022; 27:molecules27113606. [PMID: 35684539 PMCID: PMC9182188 DOI: 10.3390/molecules27113606] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/27/2022] [Accepted: 05/31/2022] [Indexed: 01/18/2023] Open
Abstract
An important strategy for treating neurodegenerative disorders is to maintain the levels of acetylcholine in the synaptic cleft by blocking the cholinesterases. Searching for new effective compounds with inhibited acetylcholinesterase and butyrylcholinesterase activity is one of the most significant challenges of the modern scientific research. The aim of this study was the optimization of the condition for cholinesterase activity determination by high-performance liquid chromatography coupled with diode array detector (HPLC-DAD) in terms of concentrations of enzymatic reaction mixture components, temperature of incubation, and incubation time. In vitro investigation of acetylcholinesterase and butyrylcholinesterase activity inhibition by some isoquinoline alkaloids and extracts obtained from the aerial part and roots of Macleaya cordata collected in May, July, and September. Acetylcholinesterase and butyrylcholinesterase activity inhibition of the extracts obtained from the plant had not been tested previously. The application of the HPLC method allowed eliminating absorption of interfering components, for example, alkaloids such as sanguinarine and berberine. The HPLC method was successfully applied for the evaluation of the acetylcholinesterase inhibitory activity in samples such as plant extracts, especially those containing colored components adsorbing at the same wavelength as the adsorption wavelength of 5-thio-2-nitro-benzoic acid, which is the product of the reaction between thiocholine (product of the hydrolysis of acetyl/butyrylthiocholine reaction) with Ellman’s reagent. Moreover, liquid chromatography coupled with a triple quadrupole mass spectrometer (LC–QqQ–ESI–MS/MS) analysis allowed evaluating the identification of relevant bioactive compounds in the obtained plant extracts. The investigated alkaloids, especially sanguinarine and chelerythrine, and all the Macleaya cordata extracts, especially the extract obtained from the aerial part collected in May, exhibited very high cholinesterase activity inhibition. HPLC-DAD was also applied for the kinetics study of the most active alkaloids sanguinarine and chelerythrine. Our investigations demonstrated that these plant extracts can be recommended for further in vivo experiments to confirm their cholinesterase inhibition activity.
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Affiliation(s)
- Tomasz Tuzimski
- Department of Physical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland
- Correspondence: (T.T.); (A.P.)
| | - Anna Petruczynik
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland
- Correspondence: (T.T.); (A.P.)
| | - Małgorzata Szultka-Młyńska
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Torun, Poland; (M.S.-M.); (M.S.); (B.B.)
| | - Mateusz Sugajski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Torun, Poland; (M.S.-M.); (M.S.); (B.B.)
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun, Wileńska 4, 87-100 Torun, Poland
- Kujawsko-Pomorskie Heritage Center and Kujawsko-Pomorskie Science and Technology Center Prof. Jana Czochralskiego, Czerwona Droga 8, 87-100 Torun, Poland
| | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Torun, Poland; (M.S.-M.); (M.S.); (B.B.)
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Su Y, Song W, He Q, Fan Y, Rao L, Liu Y, Zhang Y, Zhang CR. Two Novel Flavonoids and Cytotoxicity Evaluation from Cryptocarya yunnanensis. Chem Biodivers 2022; 19:e202200224. [PMID: 35567314 DOI: 10.1002/cbdv.202200224] [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: 03/11/2022] [Accepted: 05/02/2022] [Indexed: 11/08/2022]
Abstract
Two new flavonoids, cryunchalcone (1) and cryptoyunnanone I (2), were isolated from the leaves and twigs of Cryptocarya yunnanensis. Their structures were elucidated by the detailed spectroscopic data analysis and electronic circular dichroism (ECD) calculations. Cryunchalcone (1) is a biflavonoid constructed by a dihydrochalcone coupled with a chalcone through an unprecedented C-2''-C-6 linkage. Cryptoyunnanone I (2) is a unique complex flavanone bearing a phenylpropanoid moiety.
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Affiliation(s)
- Yu Su
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Wanbin Song
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P. R. China
| | - Qian He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Yue Fan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Li Rao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Yu Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Yinan Zhang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P. R. China
| | - Chuan-Rui Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China.,State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, P. R. China
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14
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Wang XN, Kuang XD, Wang Y, Sun P, He XR, Peng YA, Liu LH, Gu JL, Gan LS, Wang XN, Shu JC, Zhou ZW. α-Pyrones with glucose uptake-stimulatory activity from the twigs of Cryptocarya wrayi. Fitoterapia 2022; 158:105144. [PMID: 35149120 DOI: 10.1016/j.fitote.2022.105144] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/06/2022] [Accepted: 02/06/2022] [Indexed: 11/20/2022]
Abstract
Five new α-pyrones, cryptowratones A-E (1-5), and five known congeners (6-10), together with four other known compounds 11-14 were isolated from the twigs of Cryptocarya wrayi. The structures of the new compounds were elucidated on the basis of extensive spectroscopic data analysis and ECD calculations. All α-pyrones except 6 were evaluated for their stimulatory effects on glucose uptake in vitro with CHO-K1/GLUT4 cells. The positive control insulin displayed an approximate 42 ± 0.14% promotion on glucose uptake at 25 μM, compared with the CHO-K1/GLUT4 group. Compounds 1a/2a, 2, 3, and 10 showed a more significant stimulation of glucose uptake than insulin (25 μM) by 36 ± 0.08%, 27 ± 0.12%, 28 ± 0.12%, and 25 ± 0.12% at 1.5 μM, respectively. Immunofluorescence assays indicated the glucose uptake-stimulatory activity of α-pyrones might be correlated with increased GLUT4 translocation.
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Affiliation(s)
- Xiao-Na Wang
- School of Pharmacy, Nanchang University, Nanchang 330006, PR China
| | - Xiao-Dong Kuang
- Department of Pathology, School of Basic Medicine, Nanchang University, Nanchang 330006, PR China
| | - Yong Wang
- School of Pharmacy, Nanchang University, Nanchang 330006, PR China
| | - Peng Sun
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, PR China
| | - Xiao-Ru He
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, PR China
| | - Yi-An Peng
- School of Pharmacy, Nanchang University, Nanchang 330006, PR China
| | - Lu-Hong Liu
- School of Pharmacy, Nanchang University, Nanchang 330006, PR China
| | - Jin-Long Gu
- School of Pharmacy, Nanchang University, Nanchang 330006, PR China
| | - Li-She Gan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, PR China
| | - Xiao-Ning Wang
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, PR China
| | - Ji-Cheng Shu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, PR China.
| | - Zhi-Wang Zhou
- School of Pharmacy, Nanchang University, Nanchang 330006, PR China; Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, PR China.
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15
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Zheng A, Wang S, Zhou T, Chen Y, Ke X, Chen H, Tan H. Bioinspired syntheses of cryptoflavanones C and D, oboflavanones A and B, and cryptoyunnanones G and H enabled by an acid-triggered cascade sequence. Org Chem Front 2022. [DOI: 10.1039/d1qo01837j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Collective total syntheses of oboflavanones A-B, cryptoflavanones C-D, and cryptoyunnanones G-H via a bioinspired acid-triggered olefin isomerization/hemiacetalization/dehydration/formal [3 + 3]-type cycloaddition cascade process are presented.
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Affiliation(s)
- Anquan Zheng
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Key Laboratory of South China Agricultural Plant Molecular Analysis, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China
| | - Sasa Wang
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning 530006, China
| | - Tingting Zhou
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Key Laboratory of South China Agricultural Plant Molecular Analysis, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China
| | - Yan Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Xin Ke
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Huiyu Chen
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China
| | - Haibo Tan
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Key Laboratory of South China Agricultural Plant Molecular Analysis, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
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16
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Two new isoquinoline alkaloids from Cryptocarya wrayi and their biological activities. Fitoterapia 2021; 156:105086. [PMID: 34798164 DOI: 10.1016/j.fitote.2021.105086] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 12/26/2022]
Abstract
Two new isoquinoline alkaloids, cryptowrayines A (1) and B (2), along with one known pavine alkaloid (-)-12-hydroxyeschscholtzidine (3), were isolated from the twigs of Cryptocarya wrayi. The structures of new compounds were elucidated by extensive spectroscopic data analysis and electronic circular dichroism (ECD) calculations. Both compounds 1 and 2 exhibited moderate quinone reductase inducing activity in Hepa 1c1c7 cells.
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17
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Plant isoquinoline alkaloids: Advances in the chemistry and biology of berberine. Eur J Med Chem 2021; 226:113839. [PMID: 34536668 DOI: 10.1016/j.ejmech.2021.113839] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 01/08/2023]
Abstract
Alkaloids are one of the most important classes of plant bioactives. Among these isoquinoline alkaloids possess varied structures and exhibit numerous biological activities. Basically these are biosynthetically produced via phenylpropanoid pathway. However, occasionally some mixed pathways may also occur to provide structural divergence. Among the various biological activities anticancer, antidiabetic, antiinflammatory, and antimicrobial are important. A few notable bioactive isoquinoline alkaloids are antidiabetic berberine, anti-tussive codeine, analgesic morphine, and muscle relaxant papaverine etc. Berberine is one of the most discussed bioactives from this class possessing broad-spectrum pharmacological activities. Present review aims at recent updates of isoquinoline alkaloids with major emphasis on berberine, its detailed chemistry, important biological activities, structure activity relationship and implementation in future research.
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18
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He Q, Fan Y, Liu Y, Rao L, You YX, Su Y, Zhou Z, Xu YK, Zhang CR. Cryptoyunnanones A-H, Complex Flavanones from Cryptocarya yunnanensis. JOURNAL OF NATURAL PRODUCTS 2021; 84:2209-2216. [PMID: 34282909 DOI: 10.1021/acs.jnatprod.1c00287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Eight new complex flavanones with a novel linkage, cryptoyunnanones A-H (1-8), together with four known α-pyrones, were isolated from the leaves and twigs of Cryptocarya yunnanensis. The structures of 1-8 including their absolute configurations were characterized by spectroscopic data analysis and single-crystal X-ray crystallography. Plausible biosynthetic pathways for the formation of compounds 1-8 were proposed. Compounds 1-4 exhibited cytotoxicity against HCT-116, MDA-MB-231, and PC-3 cancer cells with IC50 values from 6.4 to 9.1 μM.
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Affiliation(s)
- Qian He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yue Fan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yu Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Li Rao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yun-Xia You
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yu Su
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Zhen Zhou
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - You-Kai Xu
- Key Laboratory of Tropical Plant Resource and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Yunnan 666303, People's Republic of China
| | - Chuan-Rui Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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19
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Gulcan HO, Orhan IE. A Recent Look into Natural Products that have Potential to Inhibit Cholinesterases and Monoamine Oxidase B: Update for 2010-2019. Comb Chem High Throughput Screen 2021; 23:862-876. [PMID: 31985374 DOI: 10.2174/1386207323666200127145246] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 11/12/2019] [Accepted: 11/12/2019] [Indexed: 11/22/2022]
Abstract
With respect to the unknowns of pathophysiology of Alzheimer's Disease (AD)-, and Parkinson's Disease (PD)-like neurodegenerative disorders, natural product research is still one of the valid tools in order to provide alternative and/or better treatment options. At one hand, various extracts of herbals provide a combination of actions targeting multiple receptors, on the other hand, the discovery of active natural products (i.e., secondary metabolites) generally offers alternative chemical structures either ready to be employed in clinical studies or available to be utilized as important scaffolds for the design of novel agents. Regarding the importance of certain enzymes (e.g. cholinesterase and monoamine oxidase B), for the treatment of AD and PD, we have surveyed the natural product research within this area in the last decade. Particularly novel natural agents discovered within this period, concomitant to novel biological activities displayed for known natural products, are harmonized within the present study.
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Affiliation(s)
- Hayrettin O Gulcan
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, Eastern Mediterranean University, Famagusta, TR. North Cyprus, via Mersin 10, Turkey
| | - Ilkay E Orhan
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, Ankara 06300, Turkey
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20
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Potential therapeutic natural products against Alzheimer's disease with Reference of Acetylcholinesterase. Biomed Pharmacother 2021; 139:111609. [PMID: 33915501 DOI: 10.1016/j.biopha.2021.111609] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/04/2021] [Accepted: 04/12/2021] [Indexed: 12/17/2022] Open
Abstract
Alzheimer's disease (AD), is the most common type of dementia primarily affecting the later years of life. Its prevalence is likely to increase in any aging population and will be a major burden on healthcare system by the mid of the century. Despite scientific and technological breakthroughs in the last 50 years, that have expanded our understanding of the disease on a system, cellular and molecular level, therapies that could stop or slow the progression of the disease are still unavailable. The Food and Drug Administration (FDA), has approved acetylcholinesterase (AChE) inhibitors (donepezil, galantamine, tacrine and rivastigmine) and glutamate receptor antagonist (memantine) for the treatment of AD. In this review we summarize the studies reporting phytocompounds and extracts from medicinal plants that show AChE inhibitory activities and could be of potential benefit in AD. Future research directions are suggested and recommendations made to expand the use of medicinal plants and their formulations to prevent, mitigate and treat AD.
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21
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Panda SS, Jhanji N. Natural Products as Potential Anti-Alzheimer Agents. Curr Med Chem 2021; 27:5887-5917. [PMID: 31215372 DOI: 10.2174/0929867326666190618113613] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 03/20/2019] [Accepted: 05/28/2019] [Indexed: 01/18/2023]
Abstract
Medicinal plants have curative properties due to the presence of various complex chemical substances of different composition, which are found as secondary metabolites in one or more parts of the plant. The diverse secondary metabolites play an important role in the prevention and cure of various diseases including neurodegenerative diseases like Alzheimer's disease. Naturally occurring compounds such as flavonoids, polyphenols, alkaloids, and glycosides found in various parts of the plant and/or marine sources may potentially protect neurodegeneration as well as improve memory and cognitive function. Many natural compounds show anti-Alzheimer activity through specific pharmacological mechanisms like targeting β-amyloid, Beta-secretase 1 and Acetylcholinesterase. In this review, we have compiled more than 130 natural products with a broad diversity in the class of compounds, which were isolated from different sources showing anti- Alzheimer properties.
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Affiliation(s)
- Siva S Panda
- Department of Chemistry & Physics, Augusta University, Augusta, Georgia 30912, United States
| | - Nancy Jhanji
- Department of Chemistry & Physics, Augusta University, Augusta, Georgia 30912, United States
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22
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Tuzimski T, Petruczynik A. Application of HPLC-DAD for In Vitro Investigation of Acetylcholinesterase Inhibition Activity of Selected Isoquinoline Alkaloids from Sanguinaria canadensis Extracts. Molecules 2021; 26:molecules26010230. [PMID: 33466254 PMCID: PMC7796366 DOI: 10.3390/molecules26010230] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 12/30/2020] [Accepted: 01/01/2021] [Indexed: 12/17/2022] Open
Abstract
Isoquinoline alkaloids may have a wide range of pharmacological activities. Some of them have acetylcholinesterase activity inhibition. Nowadays, neurodegenerative disorders such as Alzheimer’s disease have become a serious public health problem. Searching for new effective compounds with inhibited acetylcholinesterase activity is one of the most significant challenges of modern scientific research. The aim of this study was the in vitro investigation of acetylcholinesterase activity inhibition of extracts obtained from Sanguinaria canadensis collected before, during and after flowering. The acetylcholinesterase activity inhibition of these extracts has not been previously tested. The aim was also to quantify selected alkaloids in the investigated extracts by high performance liquid chromatography (HPLC). The analyses of alkaloid content were performed using HPLC in reversed phase (RP) mode using Polar RP column and mobile phase containing acetonitrile, water and ionic liquid (IL). The acetylcholinesterase activity inhibition of the tested plant extracts and respective alkaloid standards were examined using high performance liquid chromatography with diode-array detector (HPLC-DAD) for the quantification of 5-thio-2-nitro-benzoic acid, which is the product of the reaction between the thiocholine (product of the hydrolysis of acetylthiocholine reaction) with Ellman reagent. The application of the HPLC method allowed for elimination of absorption of interfering components, for example, alkaloids such as sanguinarine and berberine. It is revealed that the HPLC method can be successfully used for the evaluation of the acetylcholinesterase inhibitory activity in samples such as plant extracts, especially those containing colored components adsorbing at wavelength in the range 405–412 nm. The acetylcholinesterase inhibition activity synergy of pairs of alkaloid standards and mixture of all investigated alkaloids was also determined. Most investigated alkaloids and all Sanguinaria canadensis extracts exhibited very high acetylcholinesterase activity inhibition. IC50 values obtained for alkaloid standards were from 0.36 for berberine to 23.13 µg/mL for protopine and from 61.24 to 89.14 µg/mL for Sanguinaria canadensis extracts. Our investigations demonstrated that these plant extracts can be recommended for further in vivo experiments to confirm their acetylcholinesterase activity inhibition.
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Affiliation(s)
- Tomasz Tuzimski
- Department of Physical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland
- Correspondence: (T.T.); (A.P.); Tel.: +48-664772307 (T.T.); +48-510664914 (A.P.)
| | - Anna Petruczynik
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland
- Correspondence: (T.T.); (A.P.); Tel.: +48-664772307 (T.T.); +48-510664914 (A.P.)
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23
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Conceição RS, Perez CJ, Branco A, Botura MB, Ifa DR. Identification of Sassafras albidum alkaloids by high-performance thin-layer chromatography tandem mass spectrometry and mapping by desorption electrospray ionization mass spectrometry imaging. JOURNAL OF MASS SPECTROMETRY : JMS 2021; 56:e4674. [PMID: 33155339 DOI: 10.1002/jms.4674] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 10/16/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
Sassafras albidum is an important tree species that occurs across North America. The presence of benzylisoquinoline and aporphine alkaloids has been previously described; however, the spatial distribution of these compounds within S. albidum and other plants of Lauraceae family is still unclear. Mass spectrometry imaging has become an important tool in analysis of plants metabolites, uncovering important contributions about the functional role, biosynthetic pathway, and accumulation of these compounds in the plant. This work aimed to identify further alkaloids present in S. albidum roots, twigs, and leaves by high-performance thin-layer chromatography coupled to desorption electrospray ionization multistage mass spectrometry (HPTLC DESI-MSn ) and to map the spatial distribution of these compounds by DESI-MS imaging. A total of 12 alkaloids were indentified in the roots and twigs, and six of them were detected for the first time in S. albidum. A high number of alkaloids was found in S. albidum roots; however, alkaloids were not detected in the leaves. Cross sections of roots and twigs were blotted onto TLC plates assisted by heating and solvent extraction, and these imprints were analyzed by DESI-MS imaging. The profile of alkaloid spatial distribution in DESI-MS images showed different accumulation patterns across and within different plant parts. Most alkaloids displayed higher intensities in the outer-most layer of the roots and twigs. The detailed spatial localization pattern of these alkaloids analyzed by DESI-MS imaging in different plant parts could contribute to a better understanding of the profile of distribution, accumulation, and biosynthesis of benzylisoquinoline and aporphine alkaloids.
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Affiliation(s)
- Rodrigo S Conceição
- Center for Research in Mass Spectrometry, Department of Chemistry, York University, Toronto, Ontario, Canada
- Departament of Health, State University of Feira de Santana, Feira de Santana, Brazil
| | - Consuelo J Perez
- Center for Research in Mass Spectrometry, Department of Chemistry, York University, Toronto, Ontario, Canada
| | - Alexsandro Branco
- Departament of Health, State University of Feira de Santana, Feira de Santana, Brazil
| | - Mariana B Botura
- Departament of Health, State University of Feira de Santana, Feira de Santana, Brazil
| | - Demian R Ifa
- Center for Research in Mass Spectrometry, Department of Chemistry, York University, Toronto, Ontario, Canada
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24
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Almeida RBMD, Conceição RS, Silva KSD, Santos Junior MCD, Branco A, Botura MB. Ocotea daphnifolia: phytochemical investigation, in vitro dual cholinesterase inhibition, and molecular docking studies. BRAZ J PHARM SCI 2021. [DOI: 10.1590/s2175-97902020000418310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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25
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He Q, Fan Y, Liu Y, You YX, Rao L, Su Y, Xu YK, Lin B, Zhang CR. Cytotoxic α-pyrone derivatives from Cryptocarya yunnanensis. Nat Prod Res 2020; 36:918-924. [DOI: 10.1080/14786419.2020.1849205] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Qian He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, and Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, P.R. China
| | - Yue Fan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, and Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, P.R. China
| | - Yu Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, and Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, P.R. China
| | - Yun-Xia You
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, and Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, P.R. China
| | - Li Rao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, and Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, P.R. China
| | - Yu Su
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, and Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, P.R. China
| | - You-Kai Xu
- Key Laboratory of Tropical Plant Resource and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, P.R. China
| | - Bin Lin
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, P.R. China
| | - Chuan-Rui Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, and Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, P.R. China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P.R. China
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Shang XF, Yang CJ, Morris-Natschke SL, Li JC, Yin XD, Liu YQ, Guo X, Peng JW, Goto M, Zhang JY, Lee KH. Biologically active isoquinoline alkaloids covering 2014-2018. Med Res Rev 2020; 40:2212-2289. [PMID: 32729169 PMCID: PMC7554109 DOI: 10.1002/med.21703] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 06/08/2020] [Accepted: 06/18/2020] [Indexed: 12/13/2022]
Abstract
Isoquinoline alkaloids, an important class of N-based heterocyclic compounds, have attracted considerable attention from researchers worldwide since the early 19th century. Over the past 200 years, many compounds from this class were isolated, and most of them and their analogs possess various bioactivities. In this review, we survey the updated literature on bioactive alkaloids and highlight research achievements of this alkaloid class during the period of 2014-2018. We reviewed over 400 molecules with a broad range of bioactivities, including antitumor, antidiabetic and its complications, antibacterial, antifungal, antiviral, antiparasitic, insecticidal, anti-inflammatory, antioxidant, neuroprotective, and other activities. This review should provide new indications or directions for the discovery of new and better drugs from the original naturally occurring isoquinoline alkaloids.
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Affiliation(s)
- Xiao-Fei Shang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P.R. China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China
| | - Cheng-Jie Yang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P.R. China
| | - Susan L. Morris-Natschke
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599
| | - Jun-Cai Li
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xiao-Dan Yin
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P.R. China
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xiao Guo
- Tibetan Medicine Research Center of Qinghai University, Qinghai University Tibetan Medical College, Qinghai University, 251 Ningda Road, Xining 810016, P.R. China
| | - Jing-Wen Peng
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P.R. China
| | - Masuo Goto
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599
| | - Ji-Yu Zhang
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599
- Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung 40402, Taiwan
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Chau DTM, Chung NT, Huong LT, Hung NH, Ogunwande IA, Dai DN, Setzer WN. Chemical Compositions, Mosquito Larvicidal and Antimicrobial Activities of Leaf Essential Oils of Eleven Species of Lauraceae from Vietnam. PLANTS 2020; 9:plants9050606. [PMID: 32397613 PMCID: PMC7284511 DOI: 10.3390/plants9050606] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 12/24/2022]
Abstract
The Lauraceae is a family rich in aromatic and medicinal plants. Likewise, essential oils derived from members of this family have demonstrated a myriad of biological activities. It is hypothesized that members of the Lauraceae from Vietnam will yield essential oils that may be useful in controlling mosquito populations and treating microbial infections. In this work, the leaf essential oils of eleven species of Lauraceae (Beilschmiedia erythrophloia, B. robusta, B. yunnanensis, Cryptocarya concinna, C. impressa, C. infectoria, Litsea viridis, Machilus balansa, M. grandifolia, Neolitsea ellipsoidea, and Phoebe angustifolia) have been obtained by hydrodistillation and the chemical compositions analyzed by gas chromatography – mass spectrometry (GC-MS) and gas chromatography with flame ionization detection (GC-FID). The essential oils were screened for larvicidal activity against Aedes aegypti, Ae. albopictus, and Culex quinquefasciatus, and for antimicrobial activity against Enterococcus faecalis, Staphylococcus aureus, Bacillus cereus, Escherichia coli, Pseudomonas aeruginosa, Salmonella enterica, and Candida albicans. The leaf essential oil of N. ellipsoidea, rich in (E)-β-ocimene (87.6%), showed excellent larvicidal activity against Ae. aegypti with a 24 h LC50 of 6.59 μg/mL. The leaf essential oil of C. infectoria, dominated by germacrene D (55.5%) and bicyclogermacrene (11.4%), exhibited remarkable larvicidal activity against Cx. quinquefasciatus (48 h LC50 = 0.40 μg/mL). N. ellipsoidea leaf essential oil also demonstrated notable antibacterial activity against E. faecalis and B. cereus with minimum inhibitory concentration (MIC) values of 16 μg/mL, while the leaf essential oil of C. impressa showed excellent anticandidal with an MIC of 16 μg/mL. Leaf essential oils from the Lauraceae should be considered for utilization as alternative agents for controlling mosquito populations and as antimicrobial agents.
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Affiliation(s)
- Dao Thi Minh Chau
- Institute of Biochemical Technology and Environment, Vinh University, 182 Le Duan, Vinh City 4300, Nghệ An Province, Vietnam;
| | - Nguyen Thanh Chung
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay 10072, Hanoi, Vietnam;
| | - Le Thi Huong
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City 4300, Nghệ An Province, Vietnam;
| | - Nguyen Huy Hung
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang 5000, Vietnam;
| | - Isiaka A. Ogunwande
- Foresight Institute of Research and Translation, University Road, Aleku Area, Osogbo 230271, Nigeria;
| | - Do Ngoc Dai
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay 10072, Hanoi, Vietnam;
- Faculty of Agriculture, Forestry and Fishery, Nghe An College of Economics, 51-Ly Tu Trong, Vinh City 4300, Nghe An Province, Vietnam
- Correspondence: (D.N.D.); (W.N.S.)
| | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA
- Correspondence: (D.N.D.); (W.N.S.)
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Chemical Constituents of Beilschmiedia penangiana. Chem Nat Compd 2020. [DOI: 10.1007/s10600-020-03097-w] [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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Pourshojaei Y, Eskandari K, Asadipour A. Highly Significant Scaffolds to Design and Synthesis Cholinesterase Inhibitors as Anti-Alzheimer Agents. Mini Rev Med Chem 2019; 19:1577-1598. [DOI: 10.2174/1389557519666190719143112] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 06/02/2019] [Accepted: 06/25/2019] [Indexed: 12/19/2022]
Abstract
:
Alzheimer, a progressive disease, is a common term for memory loss which interferes with
daily life through severe influence on cognitive abilities. Based on the cholinergic hypothesis, and Xray
crystallographic determination of the structure of acetylcholinesterase (AChE) enzyme, the level of
acetylcholine (ACh, an important neurotransmitter associated with memory) in the hippocampus and
cortex area of the brain has a direct effect on Alzheimer. This fact encourages scientists to design and
synthesize a wide range of acetylcholinesterase inhibitors (AChEIs) to control the level of ACh in the
brain, keeping in view the crystallographic structure of AChE enzyme and drugs approved by the Food
and Drug Administration (FDA).
:
AChEIs have slightly diverse pharmacological properties, but all of them work by inhibiting the segregation
of ACh by blocking AChE. We reviewed significant scaffolds introduced as AChEIs. In some
studies, the activity against butyrylcholinesterase (BuChE) has been evaluated as well because BuChE
is a similar enzyme to neuronal acetylcholinesterase and is capable of hydrolyzing ACh. In order to
study AChEIs effectively, we divided them structurally into 12 classes and briefly explained effective
AChEIs and compared their activities against AChE enzyme.
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Affiliation(s)
- Yaghoub Pourshojaei
- Department of Medicinal Chemistry, Faculty of Pharmacy & Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Khalil Eskandari
- Department of Medicinal Chemistry, Faculty of Pharmacy & Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Asadipour
- Department of Medicinal Chemistry, Faculty of Pharmacy & Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
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Fan Y, Liu Y, You YX, Rao L, Su Y, He Q, Hu F, Li Y, Wei W, Xu YK, Lin B, Zhang CR. Cytotoxic arylalkenyl α,β-unsaturated δ-lactones from Cryptocarya brachythyrsa. Fitoterapia 2019; 136:104167. [DOI: 10.1016/j.fitote.2019.05.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 04/29/2019] [Accepted: 05/05/2019] [Indexed: 11/24/2022]
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Cassels BK, Fuentes-Barros G, Castro-Saavedra S. Boldo, Its Secondary Metabolites and their Derivatives. CURRENT TRADITIONAL MEDICINE 2019. [DOI: 10.2174/2215083804666181113112928] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Boldo leaves (Boldo folium, from Peumus boldus Mol.) are very frequently used as a medicinal herb in Chile and are exported to many countries to be used in teas or as extracts included in herbal remedies, primarily as an aid to digestion and as a mild sedative. Scientific support for these uses is scanty, and boldine, an alkaloid viewed as characteristic of the tree and present in high concentration in the bark, is extracted by specialized companies and sold as the supposed main active constituent. Consequently, boldine has been the subject of a considerable number of research papers, while some of the other alkaloids present to a greater extent in the leaves have been relatively neglected except when found in large amounts in other species. These studies range from assays of antioxidant activity to anti-inflammatory, antineoplastic and other medical applications. The essential oil, usually containing a large percentage of the toxic ascaridole, was once used as a vermifuge and is now regarded with caution, but is still of interest as a possible natural insecticide, fungicide, antiparasitic and herbicide. The last decade has seen an explosive increase in papers pointing to possible uses of boldo and its constituents. This review attempts to bring these publications together in a comprehensive way with the purpose of stimulating and orienting further research into the useful properties of this Chilean endemic tree.
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Affiliation(s)
- Bruce K. Cassels
- Department of Chemistry, Faculty of Sciences, University of Chile, Santiago, Chile
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González-Ramírez M, Gavilán J, Silva-Grecchi T, Cajas-Madriaga D, Triviño S, Becerra J, Saez-Orellana F, Pérez C, Fuentealba J. A Natural Benzofuran from the Patagonic Aleurodiscus vitellinus Fungus has Potent Neuroprotective Properties on a Cellular Model of Amyloid-β Peptide Toxicity. J Alzheimers Dis 2019; 61:1463-1475. [PMID: 29376877 DOI: 10.3233/jad-170958] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Alzheimer's disease (AD) is characterized by amyloid plaques that form due to an increase in amyloid-β peptide (Aβ) aggregation. One strategy in the search of new treatments for AD focuses on compounds that decrease Aβ accumulation. Compounds containing a benzofuran ring have been described to play an important role in decreasing Aβ-induced toxicity; however, only synthetic benzofurans have been tested thus far. The aim of the present study was to examine the in vitro neuroprotective properties of fomannoxin (Fx), a natural benzofuran isolated from cultures of the Andean-Patagonian fungi Aleurodiscus vitellinus, and evaluate its effect on Aβ peptide. We tested the effect of Fx at a wide concentration range (10-11-10-4 M) in PC-12 cells, and found the compound did not alter cellular viability. Fx also showed a concentration-dependent effect on the Aβ-induced toxicity in PC12 cells, showing viability above 100% at 10-6 M. We then measured the effect of Fx (10-7-10-5 M) on the frequency of cytosolic Ca2+ transients in rat hippocampal neurons at both acute and chronic (24 h) times. Acute incubation with Fx increased the frequency of cytosolic Ca2+ transients to values around 200%, whereas chronic incubation with Fx increased the frequency of Ca2+ transients. Finally, the Aβ-induced decrease in intracellular Ca2+ transients was prevented when Fx (10-6 M) was co-incubated with Aβ (5×10-6 M). The results suggest a potent neuroprotective effect of this naturally occurring benzofuran against Aβ peptide toxicity that could be mediated by an interference with it binding to plasma membrane, and lead Fx as new chemical entity to develop pharmacological tools against Aβ peptide neurotoxicity.
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Affiliation(s)
| | - Javiera Gavilán
- Laboratory of Screening of Neuroactive Compounds, University of Concepción, Concepción, Chile
| | - Tiare Silva-Grecchi
- Laboratory of Screening of Neuroactive Compounds, University of Concepción, Concepción, Chile
| | - Daniel Cajas-Madriaga
- Laboratory of Chemistry of Natural Products, University of Concepción, Concepción, Chile
| | - Sergio Triviño
- Laboratory of Chemistry of Natural Products, University of Concepción, Concepción, Chile
| | - José Becerra
- Laboratory of Chemistry of Natural Products, University of Concepción, Concepción, Chile
| | - Francisco Saez-Orellana
- Laboratory of Screening of Neuroactive Compounds, University of Concepción, Concepción, Chile
| | - Claudia Pérez
- Laboratory of Chemistry of Natural Products, University of Concepción, Concepción, Chile
| | - Jorge Fuentealba
- Laboratory of Screening of Neuroactive Compounds, University of Concepción, Concepción, Chile
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Lima JA, Hamerski L. Alkaloids as Potential Multi-Target Drugs to Treat Alzheimer's Disease. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2019. [DOI: 10.1016/b978-0-444-64183-0.00008-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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Demmak RG, Bordage S, Bensegueni A, Boutaghane N, Hennebelle T, Mokrani EH, Sahpaz S. Chemical Constituents from Solenostemma argel and their Cholinesterase Inhibitory Activity. ACTA ACUST UNITED AC 2019. [DOI: 10.20307/nps.2019.25.2.115] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rym Gouta Demmak
- Laboratoire de Biochimie Appliquée, Département des Sciences de la Nature et de la Vie, Université Frères Mentouri-Constantine 1; 25000 Constantine, Algeria
- Laboratoire de Pharmacognosie, Univ. Lille, EA 7394 – ICV – Institut Charles Viollette; F-59000 Lille, France
| | - Simon Bordage
- Laboratoire de Pharmacognosie, Univ. Lille, EA 7394 – ICV – Institut Charles Viollette; F-59000 Lille, France
| | - Abederrahmane Bensegueni
- Laboratoire de Biochimie Appliquée, Département des Sciences de la Nature et de la Vie, Université Frères Mentouri-Constantine 1; 25000 Constantine, Algeria
| | - Naima Boutaghane
- Laboratoire d'Obtention des Substances Thérapeutiques (LOST), Campus Chaabet-Ersas, Département de chimie, Université des Frères Mentouri-Constantine; 25000 Constantine, Algeria
| | - Thierry Hennebelle
- Laboratoire de Pharmacognosie, Univ. Lille, EA 7394 – ICV – Institut Charles Viollette; F-59000 Lille, France
| | - El Hassen Mokrani
- Laboratoire de Biochimie Appliquée, Département des Sciences de la Nature et de la Vie, Université Frères Mentouri-Constantine 1; 25000 Constantine, Algeria
| | - Sevser Sahpaz
- Laboratoire de Pharmacognosie, Univ. Lille, EA 7394 – ICV – Institut Charles Viollette; F-59000 Lille, France
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Kim JH, Thao NP, Han YK, Lee YS, Luyen BTT, Oanh HV, Kim YH, Yang SY. The insight of in vitro and in silico studies on cholinesterase inhibitors from the roots of Cimicifuga dahurica (Turcz.) Maxim. J Enzyme Inhib Med Chem 2018; 33:1174-1180. [PMID: 30286669 PMCID: PMC6179041 DOI: 10.1080/14756366.2018.1491847] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 05/16/2018] [Accepted: 06/19/2018] [Indexed: 02/06/2023] Open
Abstract
Cholinesterases (ChEs) are enzymes that break down neurotransmitters associated with cognitive function and memory. We isolated cinnamic acids (1 and 2), indolinones (3 and 4), and cycloartane triterpenoid derivatives (5-19) from the roots of Cimicifuga dahurica (Turcz.) Maxim. by chromatography. These compounds were evaluated for their inhibitory activity toward ChEs. Compound 1 was determined to have an IC50 value of 16.7 ± 1.9 μM, and to act as a competitive inhibitor of acetylcholinesterase (AChE). Compounds 3, 4 and 14 were found to be noncompetitive with IC50 values of 13.8 ± 1.5 and 6.5 ± 2.5 μM, and competitive with an IC50 value of 22.6 ± 0.4 μM, respectively, against butyrylcholinesterase (BuChE). Our molecular simulation suggested each key amino acid, Tyr337 of AChE and Asn228 of BuChE, which were corresponded with potential inhibitors 1, and 3 and 4, respectively. Compounds 1 and 4 were revealed to be promising compounds for inhibition of AChEs and BuChEs, respectively.
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Affiliation(s)
- Jang Hoon Kim
- Radiation Breeding Research Center, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeoungeup, Jeollabuk-do, Republic of Korea
| | - Nguyen Phuong Thao
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Yoo Kyong Han
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Young Suk Lee
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Bui Thi Thuy Luyen
- Department of Pharmaceutical Industry, Hanoi University of Pharmacy, Hanoi, Vietnam
| | - Ha Van Oanh
- Department of Pharmaceutical Industry, Hanoi University of Pharmacy, Hanoi, Vietnam
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Seo Young Yang
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
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36
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Lee JS, Kim JH, Han YK, Ma JY, Kim YH, Li W, Yang SY. Cholinesterases inhibition studies of biological active compounds from the rhizomes of Alpinia officinarum Hance and in silico molecular dynamics. Int J Biol Macromol 2018; 120:2442-2447. [DOI: 10.1016/j.ijbiomac.2018.09.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/02/2018] [Accepted: 09/04/2018] [Indexed: 12/13/2022]
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37
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Suzuki Y, Saito Y, Goto M, Newman DJ, O’Keefe BR, Lee KH, Nakagawa-Goto K. (-)-Neocaryachine, an Antiproliferative Pavine Alkaloid from Cryptocarya laevigata, Induces DNA Double-Strand Breaks. JOURNAL OF NATURAL PRODUCTS 2017; 80:220-224. [PMID: 28099003 PMCID: PMC5516478 DOI: 10.1021/acs.jnatprod.6b01153] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Twelve benzylisoquinoline alkaloids, including pavine and phenanthroindolizidine types, were isolated from a MeOH/CH2Cl2 extract of Cryptocarya laevigata (stem bark) through bioactivity-guided fractionation for antitumor effects. Selected compounds were evaluated for antiproliferative activity against five human tumor cell lines, including a multidrug-resistant subline. Since more common 2,3,8,9-tetrasubstituted pavine alkaloids, such as crychine (3), exhibit very mild or no cytotoxicity, this compound type has not been well investigated for antitumor activity. Thus, this report is the first discovery of a 7-hydroxylated pavine alkaloid, (-)-neocaryachine (1), to demonstrate strong antiproliferative activity, with IC50 values of 0.06 to 0.41 μM against five tested tumor cell lines, including an MDR subline. Further mechanism of action studies revealed that 1 impacts the cellular S-phase by inducing DNA double-strand breaks.
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Affiliation(s)
- Yuki Suzuki
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Yohei Saito
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Masuo Goto
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7568, United States
| | - David J. Newman
- NIH Special Volunteer, Wayne, Pennsylvania 19087, United States
| | - Barry R. O’Keefe
- Natural Products Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, NCI at Frederick, Frederick, Maryland 21702-1201, United States
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, NCI at Frederick, Frederick, Maryland 21702-1201, United States
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7568, United States
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7295, United States
- Chinese Medicine Research and Development Center, China Medical University and Hospital, 2 Yuh-Der Road, Taichung, 40447, Taiwan
| | - Kyoko Nakagawa-Goto
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7568, United States
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