1
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Teerapongpisan P, Monkantha T, Yimklan S, Mah SH, Gunter NV, Promnart P, Deachathai S, Maneerat T, Duangyod T, Charoensup R, Baka A, Andersen RJ, Laphookhieo S. Tetrahydroxanthene-1,3(2 H)-diones and Oxidized Hexadiene Derivatives from Uvaria leptopoda and Their Biological Activities. JOURNAL OF NATURAL PRODUCTS 2024; 87:1611-1617. [PMID: 38805684 PMCID: PMC11217936 DOI: 10.1021/acs.jnatprod.4c00248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 05/13/2024] [Accepted: 05/16/2024] [Indexed: 05/30/2024]
Abstract
The first phytochemical investigation of the twig extract of Uvaria leptopoda resulted in the isolation and identification of three new tetrahydroxanthene-1,3(2H)-diones, uvarialeptones A-C, two new oxidized hexadiene derivatives, uvarialeptols A and B, together with ten known compounds. Their structures were elucidated by spectroscopic techniques and mass spectrometry. Uvarialeptones A and B were unprecedented tetrahydroxanthene-1,3(2H)-dione dimers which exhibited a cyclobutane ring via [2 + 2] cycloaddition from uvarialeptone C and 9a-O-methyloxymitrone, respectively. The structure of uvarialeptone A was confirmed by X-ray diffraction analysis using Mo Kα radiation. Compound 3 inhibited NO production at an IC50 value of 6.7 ± 0.1 μM.
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Affiliation(s)
- Passakorn Teerapongpisan
- Center
of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Thanakorn Monkantha
- Center
of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Saranphong Yimklan
- Department
of Chemistry, Faculty of Science, Chiang
Mai University, Chiang Mai 50200, Thailand
| | - Siau Hui Mah
- School
of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University, Lakeside Campus, 47500 Subang Jaya, Selangor, Malaysia
| | - Natalie Vivien Gunter
- School
of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University, Lakeside Campus, 47500 Subang Jaya, Selangor, Malaysia
| | | | | | - Tharakorn Maneerat
- Center
of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Thidarat Duangyod
- Medicinal
Plant Innovation Center of Mae Fah Luang University and School of
Integrative Medicine, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Rawiwan Charoensup
- Medicinal
Plant Innovation Center of Mae Fah Luang University and School of
Integrative Medicine, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | | | - Raymond J. Andersen
- Departments
of Chemistry and Earth, Ocean & Atmospheric Sciences, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Surat Laphookhieo
- Center
of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
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2
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Notarte KI, Quimque MTJ, Macaranas IT, Khan A, Pastrana AM, Villaflores OB, Arturo HC, Pilapil IV DYH, Tan SMM, Wei DQ, Wenzel-Storjohann A, Tasdemir D, Yen CH, Ji SY, Kim GY, Choi YH, Macabeo APG. Attenuation of Lipopolysaccharide-Induced Inflammatory Responses through Inhibition of the NF-κB Pathway and the Increased NRF2 Level by a Flavonol-Enriched n-Butanol Fraction from Uvaria alba. ACS OMEGA 2023; 8:5377-5392. [PMID: 36816691 PMCID: PMC9933231 DOI: 10.1021/acsomega.2c06451] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 01/18/2023] [Indexed: 05/12/2023]
Abstract
Pathologic hyperreactive inflammatory responses occur when there is excessive activation of a proinflammatory NF-κB pathway and a reduced cytoprotective NRF2 cascade. The noncytotoxic, highly selective COX-2 inhibitory flavonol-enriched butanol fraction (UaB) from Uvaria alba (U. alba) was investigated for its inflammatory modulating potential by targeting NF-κB activation and NRF2 activity. Enzyme-linked immunosorbent assay was initially performed to measure levels of proinflammatory mediators [nitric oxide (NO), prostaglandin E2, and reactive oxygen species (ROS)] and cytokines [tumor necrosis factor-alpha (TNF-α), IL-1β, and IL-6], followed by reverse transcription-polymerase chain reaction and western blotting to determine mRNA and protein expression, respectively. Using immunofluorescence staining combined with western blot analysis, the activation of NF-κB was further investigated. NRF2 activity was also measured using a luciferase reporter assay. UaB abrogated protein and mRNA expressions of inducible nitric oxide synthase (iNOS), COX-2, TNF-α, IL-1β, and IL-6 in RAW 264.7 macrophages, thereby suppressing the production of proinflammatory mediators and cytokines. This was further validated when a concentration-dependent decrease in NO and ROS production was observed in zebrafish (Danio rerio) larvae. UaB also increased NRF2 activity in HaCaT/ARE cell line and attenuated NF-κB activation by inhibiting the nuclear translocation of transcription factor p65 in RAW 264.7 macrophages. Nontargeted LC-MS analysis of UaB revealed the presence of the flavonols quercitrin (1), quercetin (2), rutin (3), kaempferol (4), and kaempferol 3-O-rutinoside (5). Molecular docking indicates that major flavonol aglycones have high affinity toward COX-2 NSAID-binding sites, TNF-α, and TNF-α converting enzyme, while the glycosylated flavonoids showed strong binding toward iNOS and IKK-all possessing dynamic stability when performing molecular dynamics simulations at 140 ns. This is the first report to have elucidated the mechanistic anti-inflammatory potential of the Philippine endemic plant U. alba.
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Affiliation(s)
- Kin Israel
R. Notarte
- Laboratory
of Organic Reactivity, Discovery and Synthesis (LORDS), Research Center
for Natural and Applied Sciences, University
of Santo Tomas, España, 1015Manila, Philippines
- Department
of Pathology, Johns Hopkins University School
of Medicine, Baltimore, Maryland21218, United
States
| | - Mark Tristan J. Quimque
- Laboratory
of Organic Reactivity, Discovery and Synthesis (LORDS), Research Center
for Natural and Applied Sciences, University
of Santo Tomas, España, 1015Manila, Philippines
- Chemistry
Department, College of Science and Mathematics, Mindanao State University - Iligan Institute of Technology, Tibanga, 9200Iligan City, Philippines
| | - Imee T. Macaranas
- Faculty
of Medicine and Surgery, University of Santo
Tomas, España, 1008Manila, Philippines
| | - Abbas Khan
- Department
of Bioinformatics and Biostatistics, State Key Laboratory of Microbial
Metabolism, Shanghai Jiao Tong University, 800 Dongchuan Road Shanghai, Minhang
District, Shanghai200240, China
| | - Adriel M. Pastrana
- Faculty
of Medicine and Surgery, University of Santo
Tomas, España, 1008Manila, Philippines
| | - Oliver B. Villaflores
- Laboratory
of Phytochemistry, Research Center for Natural and Applied Sciences, University of Santo Tomas, España, 1015Manila, Philippines
| | - Hans Christian
P. Arturo
- Laboratory
of Organic Reactivity, Discovery and Synthesis (LORDS), Research Center
for Natural and Applied Sciences, University
of Santo Tomas, España, 1015Manila, Philippines
| | - Delfin Yñigo H. Pilapil IV
- Laboratory
of Organic Reactivity, Discovery and Synthesis (LORDS), Research Center
for Natural and Applied Sciences, University
of Santo Tomas, España, 1015Manila, Philippines
| | - Sophia Morgan M. Tan
- Laboratory
of Organic Reactivity, Discovery and Synthesis (LORDS), Research Center
for Natural and Applied Sciences, University
of Santo Tomas, España, 1015Manila, Philippines
| | - Dong-Qing Wei
- Department
of Bioinformatics and Biostatistics, State Key Laboratory of Microbial
Metabolism, Shanghai Jiao Tong University, 800 Dongchuan Road Shanghai, Minhang
District, Shanghai200240, China
| | - Arlette Wenzel-Storjohann
- GEOMAR
Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine
Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research
Kiel, 24106Kiel, Germany
| | - Deniz Tasdemir
- GEOMAR
Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine
Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research
Kiel, 24106Kiel, Germany
- Faculty
of Mathematics and Natural Sciences, Kiel
University, 24118Kiel, Germany
| | - Chia-Hung Yen
- National
Natural Product Libraries and High-Throughput Screening Core Facility, Kaohsiung Medical University, Kaohsiung80708, Taiwan
| | - Seon Yeong Ji
- Department
of Biochemistry, Dongeui University College
of Korean Medicine, 52-57,
Yangjeong-ro, Busanjin-gu, Busan47227Republic of Korea
| | - Gi-Young Kim
- Department
of Marine Life Science, Jeju National University, 102 Jejudaehak-ro, Jeju-si, Jeju Special Self-Governing Province63243, Republic of Korea
| | - Yung Hyun Choi
- Department
of Biochemistry, Dongeui University College
of Korean Medicine, 52-57,
Yangjeong-ro, Busanjin-gu, Busan47227Republic of Korea
| | - Allan Patrick G. Macabeo
- Laboratory
of Organic Reactivity, Discovery and Synthesis (LORDS), Research Center
for Natural and Applied Sciences, University
of Santo Tomas, España, 1015Manila, Philippines
- ;
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3
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Quimque MT, Magsipoc RJY, Llames LCJ, Flores AIG, Garcia KY, Ratzenböck A, Hussain H, Macabeo APG. Polyoxygenated Cyclohexenes from Uvaria grandiflora with Multi-Enzyme Targeting Properties Relevant in Type 2 Diabetes and Obesity. ACS OMEGA 2022; 7:36856-36864. [PMID: 36278100 PMCID: PMC9583304 DOI: 10.1021/acsomega.2c05544] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Shikimic acid-derived polyoxygenated cyclohexene natural products commonly occurring in several species of the Uvaria represent natural products with promising biological activities. While a number of derivatives have been reported from Uvaria grandiflora (U. grandiflora), further studies are needed to discover additional bioactive congeners, particularly derivatives with multi-protein target inhibitory properties implicated in diseases such as diabetes and obesity. In this paper, isolation and identification of a new highly oxygenated cyclohexene, uvagrandol (1), along with the known compound (-)-zeylenone (2) from the DCM sub-extract of U. grandiflora following in vitro and in silico assessment of their enzyme inhibitory properties against α-glucosidase, dipeptidyl peptidase IV, porcine lipase, and human recombinant monoacylglycerol lipase are reported. The structure of 1 was elucidated using 1D and 2D NMR data analysis. The absolute configuration of 1 was established by quantum chemical calculations via the Gauge-Independent Atomic Orbital (GIAO) NMR method followed by TDDFT-Electronic Circular Dichroism (ECD) calculations. The structures of the eight possible stereoisomers were optimized by means of DFT calculations (B3LYP/6-31+G[d,p] in vacuum), and then their isotropic shielding tensors were obtained using the GIAO method at mPW1PW91/6-31G(d,p) in chloroform. Through DP4+, the isomer of configuration (1S,2S,3R,6R) for 1 was predicted with 96.3% probability. Compounds 1 and 2 significantly inhibited the four target enzymes in vitro. Binding studies through molecular docking simulations showed strong binding affinities for (-)-zeylenone (2), thus validating the in vitro results. Our findings suggest the potential of polyoxygenated cyclohexenes, in particular (-)-zeylenone (2), in anti-diabetic and anti-obesity drug discovery.
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Affiliation(s)
- Mark Tristan
J. Quimque
- Laboratory
for Organic Reactivity, Discovery and Synthesis (LORDS), Research
Center for the Natural and Applied Sciences, University of Santo Tomas, Espana Street, Manila1015, Philippines
- The
Graduate School, University of Santo Tomas, Espana Street, Manila1015, Philippines
- Department
of Chemistry, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Tibanga, Iligan City9200, Philippines
| | - Ryan Joseph Y. Magsipoc
- Laboratory
for Organic Reactivity, Discovery and Synthesis (LORDS), Research
Center for the Natural and Applied Sciences, University of Santo Tomas, Espana Street, Manila1015, Philippines
| | - Lloyd Christian J. Llames
- Laboratory
for Organic Reactivity, Discovery and Synthesis (LORDS), Research
Center for the Natural and Applied Sciences, University of Santo Tomas, Espana Street, Manila1015, Philippines
| | - Angeli Izza G. Flores
- Laboratory
for Organic Reactivity, Discovery and Synthesis (LORDS), Research
Center for the Natural and Applied Sciences, University of Santo Tomas, Espana Street, Manila1015, Philippines
| | - Katherine Yasmin
M. Garcia
- Laboratory
for Organic Reactivity, Discovery and Synthesis (LORDS), Research
Center for the Natural and Applied Sciences, University of Santo Tomas, Espana Street, Manila1015, Philippines
| | - Andreas Ratzenböck
- Institut
für Organische Chemie, Universität
Regensburg, Universitätstrasse
31, RegensburgD-93053, Germany
| | - Hidayat Hussain
- Leibniz-Institut
für Pflanzenbiochemie, Weinberg 3, HalleD-06120, Germany
| | - Allan Patrick G. Macabeo
- Laboratory
for Organic Reactivity, Discovery and Synthesis (LORDS), Research
Center for the Natural and Applied Sciences, University of Santo Tomas, Espana Street, Manila1015, Philippines
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4
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Hu Y, Li Y, Zhang Z, Li J, Dong S, Zhang J, Li Wang. Insight into the cation-regulated mechanism for the hydration of propargyl alcohols catalyzed by [Bu4P+][Im-]. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Yu JH, Yu ZP, Capon RJ, Zhang H. Natural Enantiomers: Occurrence, Biogenesis and Biological Properties. Molecules 2022; 27:molecules27041279. [PMID: 35209066 PMCID: PMC8880303 DOI: 10.3390/molecules27041279] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 02/01/2023] Open
Abstract
The knowledge that natural products (NPs) are potent and selective modulators of important biomacromolecules (e.g., DNA and proteins) has inspired some of the world’s most successful pharmaceuticals and agrochemicals. Notwithstanding these successes and despite a growing number of reports on naturally occurring pairs of enantiomers, this area of NP science still remains largely unexplored, consistent with the adage “If you don’t seek, you don’t find”. Statistically, a rapidly growing number of enantiomeric NPs have been reported in the last several years. The current review provides a comprehensive overview of recent records on natural enantiomers, with the aim of advancing awareness and providing a better understanding of the chemical diversity and biogenetic context, as well as the biological properties and therapeutic (drug discovery) potential, of enantiomeric NPs.
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Affiliation(s)
- Jin-Hai Yu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (J.-H.Y.); (Z.-P.Y.)
| | - Zhi-Pu Yu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (J.-H.Y.); (Z.-P.Y.)
| | - Robert J. Capon
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
- Correspondence: (R.J.C.); (H.Z.)
| | - Hua Zhang
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
- Correspondence: (R.J.C.); (H.Z.)
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6
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Tandem Reactions Based on the Cyclization of Carbon Dioxide and Propargylic Alcohols: Derivative Applications of α-Alkylidene Carbonates. Catalysts 2022. [DOI: 10.3390/catal12010073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
As a well-known greenhouse gas, carbon dioxide (CO2) has attracted increasing levels of attention in areas of energy, environment, climate, etc. Notably, CO2 is an abundant, nonflammable, and renewable C1 feedstock in view of chemistry. Therefore, the transformation of CO2 into organic compounds is an extremely attractive research topic in modern green and sustainable chemistry. Among the numerous CO2 utilization methods, carboxylative cycloaddition of CO2 into propargylic alcohols is an ideal route due to the corresponding products, α-alkylidene cyclic carbonates, which are a series of highly functionalized compounds that supply numerous potential methods for the construction of various synthetically and biologically valuable agents. This cyclization reaction has been intensively studied and systematically summarized, in the past years. Therefore, attention has been gradually transferred to produce more derivative compounds. Herein, the tandem reactions of this cyclization with hydration, amination, alcoholysis, and isomerization to synthesize α-hydroxyl ketones, oxazolidinones, carbamates, unsymmetrical carbonates, tetronic acids, ethylene carbonates, etc. were systematically reviewed.
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7
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Quimque MT, Notarte KI, Letada A, Fernandez RA, Pilapil DY, Pueblos KR, Agbay JC, Dahse HM, Wenzel-Storjohann A, Tasdemir D, Khan A, Wei DQ, Gose Macabeo AP. Potential Cancer- and Alzheimer's Disease-Targeting Phosphodiesterase Inhibitors from Uvaria alba: Insights from In Vitro and Consensus Virtual Screening. ACS OMEGA 2021; 6:8403-8417. [PMID: 33817501 PMCID: PMC8015132 DOI: 10.1021/acsomega.1c00137] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 03/03/2021] [Indexed: 05/06/2023]
Abstract
Inhibition of the major cyclic adenosine monophosphate-metabolizing enzyme PDE4 has shown potential for the discovery of drugs for cancer, inflammation, and neurodegenerative disorders such as Alzheimer's disease. As a springboard to explore new anti-cancer and anti-Alzheimer's chemical prototypes from rare Annonaceae species, the present study evaluated anti-PDE4B along with antiproliferative and anti-cholinesterase activities of the extracts of the Philippine endemic species Uvaria alba using in vitro assays and framed the resulting biological significance through computational binding and reactivity-based experiments. Thus, the PDE4 B2B-inhibiting dichloromethane sub-extract (UaD) of U. alba elicited antiproliferative activity against chronic myelogenous leukemia (K-562) and cytostatic effects against human cervical cancer (HeLa). The extract also profoundly inhibited acetylcholinesterase (AChE), an enzyme involved in the progression of neurodegenerative diseases. Chemical profiling analysis of the bioactive extract identified 18 putative secondary metabolites. Molecular docking and molecular dynamics simulations showed strong free energy binding mechanisms and dynamic stability at 50-ns simulations in the catalytic domains of PDE4 B2B, ubiquitin-specific peptidase 14, and Kelch-like ECH-associated protein 1 (KEAP-1 Kelch domain) for the benzylated dihydroflavone dichamanetin (16), and of an AChE and KEAP-1 BTB domain for 3-(3,4-dihydroxybenzyl)-3',4',6-trihydroxy-2,4-dimethoxychalcone (8) and grandifloracin (15), respectively. Density functional theory calculations to demonstrate Michael addition reaction of the most electrophilic metabolite and kinetically stable grandifloracin (15) with Cys151 of the KEAP-1 BTB domain illustrated favorable formation of a β-addition adduct. The top-ranked compounds also conferred favorable in silico pharmacokinetic properties.
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Affiliation(s)
- Mark Tristan Quimque
- Laboratory
of Organic Reactivity, Discovery & Synthesis (LORDS), Research
Center for Natural & Applied Sciences, University of Santo Tomas, España Blvd., 1015 Manila, Philippines
- The
Graduate School, University of Santo Tomas, España Blvd., 1015 Manila, Philippines
- Department
of Chemistry, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Tibanga, 9200 Iligan
City, Philippines
| | - Kin Israel Notarte
- Laboratory
of Organic Reactivity, Discovery & Synthesis (LORDS), Research
Center for Natural & Applied Sciences, University of Santo Tomas, España Blvd., 1015 Manila, Philippines
- Faculty
of Medicine & Surgery, University of
Santo Tomas, España Blvd., 1015 Manila, Philippines
| | - Arianne Letada
- Laboratory
of Organic Reactivity, Discovery & Synthesis (LORDS), Research
Center for Natural & Applied Sciences, University of Santo Tomas, España Blvd., 1015 Manila, Philippines
- The
Graduate School, University of Santo Tomas, España Blvd., 1015 Manila, Philippines
| | - Rey Arturo Fernandez
- Laboratory
of Organic Reactivity, Discovery & Synthesis (LORDS), Research
Center for Natural & Applied Sciences, University of Santo Tomas, España Blvd., 1015 Manila, Philippines
| | - Delfin Yñigo Pilapil
- Laboratory
of Organic Reactivity, Discovery & Synthesis (LORDS), Research
Center for Natural & Applied Sciences, University of Santo Tomas, España Blvd., 1015 Manila, Philippines
- Department
of Biological Sciences, College of Science, University of Santo Tomas, España Blvd., 1015 Manila, Philippines
| | - Kirstin Rhys Pueblos
- Laboratory
of Organic Reactivity, Discovery & Synthesis (LORDS), Research
Center for Natural & Applied Sciences, University of Santo Tomas, España Blvd., 1015 Manila, Philippines
- The
Graduate School, University of Santo Tomas, España Blvd., 1015 Manila, Philippines
- Department
of Chemistry, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Tibanga, 9200 Iligan
City, Philippines
| | - Jay Carl Agbay
- Department
of Chemistry, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Tibanga, 9200 Iligan
City, Philippines
- Philippine
Science High School—Central Mindanao Campus, 9217 Balo-i, Lanao del Norte, Philippines
| | - Hans-Martin Dahse
- Leibniz-Institute
for Natural Product Research and Infection Biology, Hans-Knöll-Institute (HKI), D-07745 Jena, Germany
| | - Arlette Wenzel-Storjohann
- GEOMAR
Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit, Marine
Natural Products Chemistry, GEOMAR Helmholtz
Centre for Ocean Research Kiel, Am Kiel-Kanal, Kiel 24106, Germany
| | - Deniz Tasdemir
- GEOMAR
Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit, Marine
Natural Products Chemistry, GEOMAR Helmholtz
Centre for Ocean Research Kiel, Am Kiel-Kanal, Kiel 24106, Germany
- Faculty
of Mathematics and Natural Sciences, Kiel
University, Christian-Albrechts-Platz
4, Kiel 24118, Germany
| | - Abbas Khan
- Department
of Bioinformatics and Biostatistics, State Key Laboratory of Microbial
Metabolism, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
| | - Dong-Qing Wei
- Department
of Bioinformatics and Biostatistics, State Key Laboratory of Microbial
Metabolism, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
- Peng Cheng Laboratory, Vanke Cloud City Phase I Building 8, Xili Street, Nashan District, Shenzhen 518055, Guangdong, P.R. China
| | - Allan Patrick Gose Macabeo
- Laboratory
of Organic Reactivity, Discovery & Synthesis (LORDS), Research
Center for Natural & Applied Sciences, University of Santo Tomas, España Blvd., 1015 Manila, Philippines
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8
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Magpantay HD, Malaluan IN, Manzano JAH, Quimque MT, Pueblos KR, Moor N, Budde S, Bangcaya PS, Lim-Valle D, Dahse HM, Khan A, Wei DQ, Alejandro GJD, Macabeo APG. Antibacterial and COX-2 Inhibitory Tetrahydrobisbenzylisoquinoline Alkaloids from the Philippine Medicinal Plant Phaeanthus ophthalmicus. PLANTS (BASEL, SWITZERLAND) 2021; 10:462. [PMID: 33804446 PMCID: PMC7999448 DOI: 10.3390/plants10030462] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 12/21/2022]
Abstract
Phaeanthus ophthalmicus (Roxb. ex G.Don) J.Sinclair (previously known as P. ebracteolatus (Presl) Merr) is a Philippine medicinal plant occurring as evergreen shrub in the lowland forests of Luzon islands. It is used traditionally by Filipinos to treat bacterial conjunctivitis, ulcer and wound infections. Based on previous investigations where cyclooxygenase-2 (COX-2) functions as immune-linked factor in infectious sensitivities to bacterial pathogens by triggering pro-inflammatory immune-associated reactions, we investigated the antimicrobial and COX inhibitory activities of the extracts and tetrahydrobisbenzylisoquinoline alkaloids of P. ophthalmicus in vitro and in silico to validate its ethnomedicinal uses. Thus, the dichloromethane-methanol (DCM-MeOH) crude extract and alkaloid extracts exhibiting antibacterial activities against drug-resistant bacterial strains such as methicillin-resistance Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus (VRE), Klebsiella pneumoniae + CRE and Pseudomonas aeruginosa + MBL afforded (+)-tetrandrine (1) and (+)-limacusine (2) as the major biologically active tetrahydrobisbenzylisoquinoline alkaloidal constituents after purification. Both tetrahydrobisbenzylisoquinoline alkaloids 1 and 2 showed broad spectrum antibacterial activity with strongest inhibition against the Gram-negative bacteria MβL-Pseudomonas aeruginosa Klebsiella pneumoniae + CRE. Interestingly, the alkaloid limacusine (2) showed selective inhibition against ovine COX-2 in vitro. These results were ascertained by molecular docking and molecular dynamics simulation experiments where alkaloid 2 showed strong affinity in the catalytic sites of Gram-negative bacterial enzymes P. aeruginosa elastase and K. pneumoniae KPC-2 carbapenemase (enzymes involved in infectivity mechanisms), and of ovine COX-2. Overall, our study provides credence on the ethnomedicinal use of the Philippine medicinal plant P. ophthalmicus as traditional plant-based adjuvant to treat bacterial conjunctivitis and other related infections. The antibacterial activities and selective COX-2 inhibition observed for limacusine (2) point to its role as the biologically active constituent of P. ophthalmicus. A limited number of drugs with COX-2 inhibitory properties like celecoxib also confer antibacterial activity. Thus, tetrahydrobisbenzyl alkaloids, especially 2, are promising pharmaceutical inspirations for developing treatments of bacterial/inflammation-related infections.
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Affiliation(s)
- Hilbert D. Magpantay
- Chemistry Department, De La Salle University, 2401 Taft Avenue, Manila 0922, Philippines;
| | - Ivane N. Malaluan
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., Manila 1015, Philippines; (I.N.M.); (J.A.H.M.); (M.T.Q.); (K.R.P.)
- Chemistry Department, College of Science, Bicol University, Rizal St., Legazpi City 4500, Philippines
| | - Joe Anthony H. Manzano
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., Manila 1015, Philippines; (I.N.M.); (J.A.H.M.); (M.T.Q.); (K.R.P.)
- Department of Biological Sciences, College of Science, University of Santo Tomas, España Blvd., Manila 1015, Philippines
| | - Mark Tristan Quimque
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., Manila 1015, Philippines; (I.N.M.); (J.A.H.M.); (M.T.Q.); (K.R.P.)
- Chemistry Department, College of Science, MSU-Iligan State University, Iligan City 9200, Philippines
| | - Kirstin Rhys Pueblos
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., Manila 1015, Philippines; (I.N.M.); (J.A.H.M.); (M.T.Q.); (K.R.P.)
- Chemistry Department, College of Science, MSU-Iligan State University, Iligan City 9200, Philippines
| | - Natalija Moor
- Institut für Organische Chemie, Universität Regensburg, Universitätstrasse 31, D-93053 Regensburg, Germany; (N.M.); (S.B.)
| | - Simon Budde
- Institut für Organische Chemie, Universität Regensburg, Universitätstrasse 31, D-93053 Regensburg, Germany; (N.M.); (S.B.)
| | - Porferio S. Bangcaya
- Biological Science Department, College of Teacher Education—University of Antique, Tario-Lim Memorial Campus, Tibiao, Antique 5707, Philippines;
| | - Demi Lim-Valle
- Clinical Microbiology Laboratory, Department of Pathology and Laboratories, Makati Medical Center, Amorsolo St., Legaspi Village, Makati City 1229, Philippines;
| | - Hans-Martin Dahse
- Leibniz-Institute for Natural Product Research and Infection Biology, Hans-Knöll-Institute (HKI), D-07745 Jena, Germany;
| | - Abbas Khan
- Department of Bioinformatics and Biostatistics, State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China; (A.K.); (D.-Q.W.)
| | - Dong-Qing Wei
- Department of Bioinformatics and Biostatistics, State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China; (A.K.); (D.-Q.W.)
- State Key Laboratory of Microbial Metabolism, Shanghai-Islamabad-Belgrade Joint Innovation Center on Antibacterial Resistances, Joint Laboratory of International Cooperation in Metabolic and Developmental Sciences, Ministry of Education and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
- Peng Cheng Laboratory, Vanke Cloud City Phase I Bldg. 8, Xili St., Nashan District, Shenzhen 518055, China
| | - Grecebio Jonathan D. Alejandro
- Plant Sciences Laboratory, Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., Manila 1015, Philippines;
| | - Allan Patrick G. Macabeo
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., Manila 1015, Philippines; (I.N.M.); (J.A.H.M.); (M.T.Q.); (K.R.P.)
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9
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Hu Y, Dong S, Zhang Z, Wang L, Zhang J. Insights into the synergistic influence of [Emim][OAc] and AgOAc for the hydration of propargylic alcohols to α-hydroxy ketones in the presence of CO 2. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01064f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A catalytic mechanism including metals, ionic liquids, and co-catalysts is elucidated for the first time.
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Affiliation(s)
- Yuhang Hu
- Henan Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys
- Henan University
- Kaifeng
- PR China
- Henan Engineering Research Center of Corrosion and Protection for Magnesium Alloys
| | - Shuya Dong
- Henan Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys
- Henan University
- Kaifeng
- PR China
- Henan Engineering Research Center of Corrosion and Protection for Magnesium Alloys
| | - Zhengkun Zhang
- Henan Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys
- Henan University
- Kaifeng
- PR China
- Henan Engineering Research Center of Corrosion and Protection for Magnesium Alloys
| | - Li Wang
- Henan Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys
- Henan University
- Kaifeng
- PR China
- Henan Engineering Research Center of Corrosion and Protection for Magnesium Alloys
| | - Jinglai Zhang
- Henan Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys
- Henan University
- Kaifeng
- PR China
- Henan Engineering Research Center of Corrosion and Protection for Magnesium Alloys
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10
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Modulation of inflammatory pathways, medicinal uses and toxicities of Uvaria species: potential role in the prevention and treatment of inflammation. Inflammopharmacology 2020; 28:1195-1218. [PMID: 32617790 DOI: 10.1007/s10787-020-00734-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 06/13/2020] [Indexed: 12/13/2022]
Abstract
The therapeutic efficacy of the contemporary anti-inflammatory drugs are well established; however, prolonged use of such can often lead to serious and life-threatening side effects. Natural product-based anti-inflammatory compounds with superior efficacy and minimum toxicity can serve as possible therapeutic alternatives in this scenario. Genus Uvaria is a part of Annonaceae family, while the majority of its species are widely distributed in tropical rain forest regions of South East Asia. Uvaria species have been used extensively used as traditional medicine for treating all sorts of inflammatory diseases including catarrhal inflammation, rheumatism, acute allergic reactions, hemorrhoids, inflammatory liver disease and inflamed joints. Phytochemical analysis of Uvaria species has revealed flavones, flavonoids, tannins, saponins, polyoxygenated cyclohexene and phenolic compounds as major phyto-constituents. This review is an attempt to highlight the anti-inflammatory activity of Uvaria species by conducting a critical appraisal of the published literature. The ethnopharmacological relevance of Uvaria species in the light of toxicological studies is also discussed herein. An extensive and relevant literature on anti-inflammatory activity of Uvaria species was collected from available books, journals and electronic databases including PubMed, ScienceDirect, Scopus, Proquest and Ovid. Extracts and isolates of Uvaria species exhibited significant anti-inflammatory activity through various mechanisms of action. 6,7-di-O-Methyl-baicalein, flexuvarol B, chrysin, (-)-zeylenol, 6-hydroxy-5,7-dimethoxy-flavone, and pinocembrin were the most potent anti-inflammatory compounds with comparable IC50 with positive controls. Therefore, it is suggested that further research should be carried out to determine the pharmacokinetics, pharmacodynamics and toxicity of these therapeutically significant compounds, to convert the pre-clinical results into clinical data for drug development and design.
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11
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Macabeo APG, Flores AIG, Fernandez RAT, Budde S, Faderl C, Dahse HM, Franzblau SG. Antitubercular and cytotoxic polyoxygenated cyclohexane derivatives from Uvaria grandiflora. Nat Prod Res 2020; 35:5229-5232. [PMID: 32202440 DOI: 10.1080/14786419.2020.1741579] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Chromatographic purification of the DCM sub-extract of Uvaria grandiflora led to the isolation and characterization of a new polyoxygenated cyclohexane derivative, grandifloranol (1), together with five known compounds. Among the compounds isolated, zeylenone (3) showed moderate antitubercular activity against Mycobacterium tuberculosis H37Rv with MIC90 value of 51.2 μM and antiproliferative or cytotoxic activity against human myeloid leukaemia (K-562) and HeLa cells with IC50 values of 2.3 and 18.3 μM, respectively.
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Affiliation(s)
- Allan Patrick G Macabeo
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| | - Angeli Izza G Flores
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| | - Rey Arturo T Fernandez
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| | - Simon Budde
- Institut fur Organische Chemie, Universität Regensburg, Regensburg, Germany
| | - Christian Faderl
- Institut fur Organische Chemie, Universität Regensburg, Regensburg, Germany
| | - Hans-Martin Dahse
- Leibniz-Institute for Natural Product Research and Infection Biology, Hans-Knöll-Institute (HKI), Jena, Germany
| | - Scott G Franzblau
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, USA
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12
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Promchai T, Thaima T, Rattanajak R, Kamchonwongpaisan S, Pyne SG, Limtharakul T. ( R)-3-(8'-Hydroxyfarnesyl)-indole and other chemical constituents from the flowers of Anomianthus dulcis and their antimalarial and cytotoxic activities. Nat Prod Res 2019; 35:2476-2481. [PMID: 31631698 DOI: 10.1080/14786419.2019.1679139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A new farnesylindole, (R)-3-(8'-hydroxyfarnesyl)-indole (1), as a scalemic mixture (33% ee) along with nine known compounds (2-10), including one farnesylindole, three flavanones, three flavone derivatives and two chalcone derivatives were isolated from the methanolic crude extract of the flowers from Anomianthus dulcis. All compounds were purified by appropriate chromatographic techniques and their structures elucidated by spectroscopic methods. Compounds 1, 2 and 8 showed moderate antiplasmodial activities against TM4/8.Two and K1CB1 strains of which compound 2 displayed the best activity with IC50 values of 27.9 ± 2.57 and 21.4 ± 1.68 µM, respectively. In addition, compound 1 also presented modest cytotoxicity against a KB cell line with an IC50 value of 22.3 ± 0.39 µM. None of these compounds showed cytotoxicity against Vero cells.
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Affiliation(s)
- Thanika Promchai
- Faculty of Science, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Chiang Mai University, Chiang Mai, Thailand.,The Graduate School, Chiang Mai University, Chiang Mai, Thailand.,School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, Australia
| | - Thanaphat Thaima
- School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, Australia
| | - Roonglawan Rattanajak
- Medical Molecular Biotechnology Research Unit, Natural Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Sumalee Kamchonwongpaisan
- Medical Molecular Biotechnology Research Unit, Natural Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Stephen G Pyne
- School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, Australia
| | - Thunwadee Limtharakul
- Faculty of Science, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Chiang Mai University, Chiang Mai, Thailand.,Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Chiang Mai University, Chiang Mai, Thailand
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13
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Meesakul P, Richardson C, Pyne SG, Laphookhieo S. α-Glucosidase Inhibitory Flavonoids and Oxepinones from the Leaf and Twig Extracts of Desmos cochinchinensis. JOURNAL OF NATURAL PRODUCTS 2019; 82:741-747. [PMID: 30835120 DOI: 10.1021/acs.jnatprod.8b00581] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Four new flavonoids (1-4), a new benzyl benzoate derivative (5), five new oxepinones (6-10), and 14 known compounds (11-24) were isolated from the leaf and twig extracts of Desmos cochinchinensis. Their structures were established by spectroscopic methods. The structure of 1 was also confirmed by X-ray diffraction data. The absolute configurations of 3, 4, and 6-10 were determined from comparisons of their ECD spectra with those of relevant reported compounds. Compounds 1, 2, 6, 8, 10, 12-15, and 17 showed α-glucosidase inhibitory activities with IC50 values ranging from 0.2 to 4.9 μM.
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Affiliation(s)
- Pornphimol Meesakul
- School of Chemistry and Molecular Biosciences , University of Wollongong , Wollongong , New South Wales 2522 , Australia
| | - Christopher Richardson
- School of Chemistry and Molecular Biosciences , University of Wollongong , Wollongong , New South Wales 2522 , Australia
| | - Stephen G Pyne
- School of Chemistry and Molecular Biosciences , University of Wollongong , Wollongong , New South Wales 2522 , Australia
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14
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Zhi QQ, Yan QH, Wang Q, Sun PF, Zhou HY, He ZM. Purification and characterization of two grandiuvarones from Desmos chinensis leaves and their antimicrobial activities. Nat Prod Res 2019; 34:1105-1112. [PMID: 30638070 DOI: 10.1080/14786419.2018.1550762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A novel aromatic compound, grandiuvarone B (5-acetoxy-3-benzoyloxymethyl-5H-oxepin-4-one), along with a known compound grandiuvarone A (5-acetoxy-6-benzoyloxymethyl-5H-oxepin-4-one) were isolated from methanol extracts of Desmos chinensis leaves. Their structures were determined by various spectroscopic techniques including nuclear magnetic resonance (NMR), high-resolution electrospray ionisation mass spectrometry (HR-ESI-MS) and circular dichroism (CD). Grandiuvarone A and grandiuvarone B are isomers and the S configuration of grandiuvarone B was reported for the first time. We then determined their antifungal activity against Aspergillus flavus. Results revealed that grandiuvarone B exhibited better antifungal activity against A. flavus, with MIC values of 0.01 mg/mL compared to grandiuvarone A (MIC values of 0.02 mg/mL). In the presence of each active compound at 160 μg/g of aquafeed, A. flavus growth was completely inhibited. Grandiuvarone B also showed antibacterial activity against the plant pathogen Ralstonia solanacearum.
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Affiliation(s)
- Qing-Qing Zhi
- The Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Science, Sun Yat-sen University, Guangzhou, China
| | - Quan-Hong Yan
- The Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Science, Sun Yat-sen University, Guangzhou, China.,Chemical Drugs Department, Guangdong Institute for Food and Drug Control, Guangzhou, China
| | - Qiong Wang
- The Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Science, Sun Yat-sen University, Guangzhou, China
| | - Peng-Fei Sun
- The Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Science, Sun Yat-sen University, Guangzhou, China
| | - Hai-Yun Zhou
- Instrumental and Analysis Research Center, Sun Yat-sen University, Guangzhou, China
| | - Zhu-Mei He
- The Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Science, Sun Yat-sen University, Guangzhou, China
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15
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Mándi A, Kurtán T. Applications of OR/ECD/VCD to the structure elucidation of natural products. Nat Prod Rep 2019; 36:889-918. [DOI: 10.1039/c9np00002j] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OR, ECD and VCD are powerful methods to determine the absolute configuration of natural products either applied independently or in combination.
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Affiliation(s)
- Attila Mándi
- Department of Organic Chemistry
- University of Debrecen
- Debrecen
- Hungary
| | - Tibor Kurtán
- Department of Organic Chemistry
- University of Debrecen
- Debrecen
- Hungary
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16
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Ho DV, Vo HQ, Nguyen TH, Do TT, Nguyen HT. A New Cytotoxic Tetrahydroxanthene-1,3(2H)-dione Derivative from Uvaria cordata and Structure Revision of Valderramenol A. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A new tetrahydroxanthene-1,3(2H)-dione derivative (1) was isolated from the leaves of Uvaria cordata collected in Viet Nam. Its structure was elucidated to be a mixture of four tautomers (1a–1d) by a combination of extensive spectroscopic analyses and the theoretical calculation of Gibbs free energies. Compound 1 exhibited moderate cytotoxicity against KB, LNCaP, Hep-G2, MKN-7, SW-480, HL-60, and SK-Mel-2 cancer cell lines with IC50 values ranging from 25.92 ± 2.33 to 44.29 ± 4.36 μg/mL. In addition, the previously reported structure of valderramenol A has been revised to 1a/1b.
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Affiliation(s)
- Duc Viet Ho
- Hue University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen, Hue City, Viet Nam
| | - Hung Quoc Vo
- Hue University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen, Hue City, Viet Nam
| | - Tho Huu Nguyen
- Saigon University, 273 An Duong Vuong, Ho Chi Minh City, Viet Nam
| | - Thao Thi Do
- Institute of Biotechnology, VAST, 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam
| | - Hoai Thi Nguyen
- Hue University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen, Hue City, Viet Nam
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17
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Macabeo APG, Letada AG, Budde S, Faderl C, Dahse HM, Franzblau SG, Alejandro GJD, Pierens GK, Garson MJ. Antitubercular and Cytotoxic Chlorinated seco-Cyclohexenes from Uvaria alba. JOURNAL OF NATURAL PRODUCTS 2017; 80:3319-3323. [PMID: 29172496 DOI: 10.1021/acs.jnatprod.7b00679] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Two new chlorine-containing polyoxygenated seco-cyclohexenes, albanols A (1) and B (2), along with the oxepinone metabolite grandiuvarone (3) were isolated from the endemic Philippine Annonaceae plant Uvaria alba. Both new compounds exhibited modest antitubercular activity. Compound 1 showed cytostatic activity (ranging from 1-50 μM) against HeLa cells and weak antiproliferative activity against HUVEC and K-562 cells with GI50 values of 106 and 81 μM, respectively.
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Affiliation(s)
- Allan Patrick G Macabeo
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas , 1015 Manila, Philippines
| | - Arianne G Letada
- Laboratory for Organic Reactivity, Discovery and Synthesis (LORDS), Research Center for the Natural and Applied Sciences, University of Santo Tomas , 1015 Manila, Philippines
| | - Simon Budde
- Institut für Organische Chemie, Universität Regensburg , D-93053 Regensburg, Germany
| | - Christian Faderl
- Institut für Organische Chemie, Universität Regensburg , D-93053 Regensburg, Germany
| | - Hans-Martin Dahse
- Leibniz-Institute for Natural Product Research and Infection Biology, Hans-Knöll-Institute (HKI) , D-07745 Jena, Germany
| | - Scott G Franzblau
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago , Chicago, Illinois 60612, United States
| | - Grecebio Jonathan D Alejandro
- Plant Sciences Laboratory, Research Center for the Natural and Applied Sciences, University of Santo Tomas , 1015 Manila, Philippines
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18
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Southeast Asian Medicinal Plants as a Potential Source of Antituberculosis Agent. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:7185649. [PMID: 29081822 PMCID: PMC5610802 DOI: 10.1155/2017/7185649] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 04/23/2017] [Accepted: 05/18/2017] [Indexed: 01/19/2023]
Abstract
Despite all of the control strategies, tuberculosis (TB) is still a major cause of death globally and one-third of the world's population is infected with TB. The drugs used for TB treatment have drawbacks of causing adverse side effects and emergence of resistance strains. Plant-derived medicines have since been used in traditional medical system for the treatment of numerous ailments worldwide. There were nine major review publications on antimycobacteria from plants in the last 17 years. However, none is focused on Southeast Asian medicinal plants. Hence, this review is aimed at highlighting the medicinal plants of Southeast Asian origin evaluated for anti-TB. This review is based on literatures published in various electronic database. A total of 132 plants species representing 45 families and 107 genera were reviewed; 27 species representing 20.5% exhibited most significant in vitro anti-TB activity (crude extracts and/or bioactive compounds 0–<10 µg/ml). The findings may motivate various scientists to undertake the project that may result in the development of crude extract that will be consumed as complementary or alternative TB drug or as potential bioactive compounds for the development of novel anti-TB drug.
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Pumiputavon K, Chaowasku T, Saenjum C, Osathanunkul M, Wungsintaweekul B, Chawansuntati K, Wipasa J, Lithanatudom P. Cell cycle arrest and apoptosis induction by methanolic leaves extracts of four Annonaceae plants. Altern Ther Health Med 2017; 17:294. [PMID: 28583139 PMCID: PMC5460496 DOI: 10.1186/s12906-017-1811-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 05/26/2017] [Indexed: 12/18/2022]
Abstract
Background Uvaria longipes (Craib) L.L.Zhou, Y.C.F.Su & R.M.K.Saunders, Artabotrys burmanicus A.DC, Marsypopetalum modestum (Pierre) B.Xue & R.M.K.Saunders and Dasymaschalon sp. have been used for traditional medicine to treat cancer-like symptoms in some ethnic groups of Thailand and Laos. Methods We evaluated the anti-cancer activity of these Annonaceae plants against several human cancer cell lines. The apoptosis induction was detected by Annexin/propidium iodide (PI) staining. Phytochemical screening was tested by standard protocols and bioactive compounds were determined by HPLC. Results The crude extracts from leaves of U. longipes, Dasymaschalon sp., A. burmanicus, and M. modestum showed particular effects that were found to vary depending on the cancer cell line, suggesting that the effect was in a cell-type specific manner. Interestingly, the induction of apoptotic cell death was prominent by the leaves-derived crude extract of M. modestum. This crude was, therefore, subjected to cell cycle analysis by PI staining. Results showed that this crude extract arrested cell cycle and increased the percentage of cells in the SubG1 phase in some cancer cell lines. The phytochemical screening tests indicated that all crude extracts contained tannins and flavonoids. HPLC of flavonoids using standards identified rutin as an active compound in U. longipes and Dasymaschalon sp., whereas quercetin was found in U. longipes and M. modestum. Conclusions These crude extracts provide a new source for rutin and quercetin, which might be capable of inducing cancer cell apoptotic death in a cell-type specific manner. This suggests, by analyzing the major bioactive compounds, the potential use of these crudes for chemotherapy in the future.
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20
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Ngoutane Mfopa A, Corona A, Eloh K, Tramontano E, Frau A, Boyom FF, Caboni P, Tocco G. Uvaria angolensis as a promising source of inhibitors of HIV-1 RT-associated RNA-dependent DNA polymerase and RNase H functions. Nat Prod Res 2017; 32:640-647. [DOI: 10.1080/14786419.2017.1332615] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Alvine Ngoutane Mfopa
- Laboratory for Phytobiochemistry and Medicinal Plants Studies, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Angela Corona
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Kodjo Eloh
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Enzo Tramontano
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Aldo Frau
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Fabrice Fekam Boyom
- Laboratory for Phytobiochemistry and Medicinal Plants Studies, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Pierluigi Caboni
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Graziella Tocco
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
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21
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Macabeo APG, Rubio PYM, Higuchi T, Umezawa N, Faderl C, Budde S, Bangcaya PS, Alejandro GJD. Polyoxygenated seco -cyclohexenes and other constituents from Uvaria valderramensis. BIOCHEM SYST ECOL 2017. [DOI: 10.1016/j.bse.2017.02.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Salae AW, Chairerk O, Sukkoet P, Chairat T, Prawat U, Tuntiwachwuttikul P, Chalermglin P, Ruchirawat S. Antiplasmodial dimeric chalcone derivatives from the roots of Uvaria siamensis. PHYTOCHEMISTRY 2017; 135:135-143. [PMID: 27989370 DOI: 10.1016/j.phytochem.2016.12.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 12/02/2016] [Accepted: 12/08/2016] [Indexed: 05/03/2023]
Abstract
Four dimeric chalcone derivatives, 8″,9″-dihydrowelwitschin H, uvarins A-C, a naphthalene derivative, 2-hydroxy-3-methoxy-6-(4'- hydroxyphenyl)naphthalene, and the known dimeric chalcones, dependensin and welwitschin E, flavonoids, a cyclohexane oxide derivative, an aromatic aldehyde were isolated from the roots of Uvaria siamensis (Annonaceae). The structures of the compounds were elucidated by spectroscopic analysis, as well as by comparison with literature data. The isolated compounds with a sufficient amount for biological assays were evaluated for their antimalarial, antimycobacterial, and cytotoxic activities. The dimeric chalcones 8″,9″-dihydrowelwitschin H, uvarins B and C, dependensin and welwitschin E showed strong antiplasmodial activity with IC50 values of 3.10, 3.02, 3.09, 4.21 and 3.99 μg/mL, respectively. A possible biosynthesis pathway of the dimeric chalcones is discussed.
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Affiliation(s)
- Abdul-Wahab Salae
- Laboratory of Natural Products Chemistry, Faculty of Science and Technology, Phuket Rajabhat University, Muang, Phuket 83000, Thailand.
| | - Orapan Chairerk
- Laboratory of Natural Products Chemistry, Faculty of Science and Technology, Phuket Rajabhat University, Muang, Phuket 83000, Thailand
| | - Piyanut Sukkoet
- Laboratory of Natural Products Chemistry, Faculty of Science and Technology, Phuket Rajabhat University, Muang, Phuket 83000, Thailand
| | - Therdsak Chairat
- Laboratory of Natural Products Chemistry, Faculty of Science and Technology, Phuket Rajabhat University, Muang, Phuket 83000, Thailand
| | - Uma Prawat
- Laboratory of Natural Products Chemistry, Faculty of Science and Technology, Phuket Rajabhat University, Muang, Phuket 83000, Thailand.
| | - Pittaya Tuntiwachwuttikul
- Laboratory of Natural Products Chemistry, Faculty of Science and Technology, Phuket Rajabhat University, Muang, Phuket 83000, Thailand
| | - Piya Chalermglin
- Thailand Institute of Scientific and Technological Research, Pathum Thani 12120, Thailand
| | - Somsak Ruchirawat
- Chulabhorn Research Institute, Kamphaeng Phet 6 Road, Bangkok 10210, Thailand; Chulabhorn Graduate Institute, Center for Environmental Health and Toxicology (EHT), Kamphaeng Phet 6 Road, Bangkok 10210, Thailand
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Mándi A, Swamy MMM, Taniguchi T, Anetai M, Monde K. Reducing Molecular Flexibility by Cyclization for Elucidation of Absolute Configuration by CD Calculations: Daurichromenic Acid. Chirality 2016; 28:453-9. [DOI: 10.1002/chir.22606] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 03/27/2016] [Accepted: 03/30/2016] [Indexed: 02/04/2023]
Affiliation(s)
- Attila Mándi
- Faculty of Advanced Life Science, Frontier Research Center for Post-Genome Science and Technology; Hokkaido University; Sapporo Japan
| | | | - Tohru Taniguchi
- Faculty of Advanced Life Science, Frontier Research Center for Post-Genome Science and Technology; Hokkaido University; Sapporo Japan
| | - Masaki Anetai
- Faculty of Advanced Life Science, Frontier Research Center for Post-Genome Science and Technology; Hokkaido University; Sapporo Japan
| | - Kenji Monde
- Faculty of Advanced Life Science, Frontier Research Center for Post-Genome Science and Technology; Hokkaido University; Sapporo Japan
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