1
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Tanjung M, Aldin MF, Arif NN, Saputri RD, Ahmat N, Tjahjandarie TS. 4-Propyl- and 4-phenylcoumarins from mesua lepidota T. Anderson and their cytotoxic activity. Nat Prod Res 2024:1-9. [PMID: 38785399 DOI: 10.1080/14786419.2024.2358526] [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: 12/07/2023] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
Two new 4-phenylcoumarins, mesulepidotins A (1) and B (2), one new 4-propylcoumarin, mesulepidotin C (3), and one known 4-phenylcoumarin (4) were isolated from Mesua lepidota stem barks. The structures of 4-propyl- and 4-phenylcoumarins were identified by analysing 1D and 2D NMR spectra combined with high-resolution ESIMS data. Compounds 1-4 were assayed to MCF-7 and HeLa cells for their cytotoxic activity. Mesulepidotin A (1) showed high activity with an IC50 value of 1.59 and 1.41 µM, respectively.
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Affiliation(s)
- Mulyadi Tanjung
- Natural Products Chemistry Research Group, Organic Chemistry Division, Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
| | - Muhammad Fajar Aldin
- Natural Products Chemistry Research Group, Organic Chemistry Division, Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
| | - Noviani Nurma Arif
- Natural Products Chemistry Research Group, Organic Chemistry Division, Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
| | - Ratih Dewi Saputri
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya, Surabaya, Indonesia
| | - Norizan Ahmat
- Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, Malaysia
| | - Tjitjik Srie Tjahjandarie
- Natural Products Chemistry Research Group, Organic Chemistry Division, Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
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2
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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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3
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Nguyen-Ngoc H, Alilou M, Derbré S, Blanchard P, Pham GN, Nghiem DT, Richomme P, Stuppner H, Ganzera M. Chemical constituents of Antidesma bunius aerial parts and the anti-AGEs activity of selected compounds. PHYTOCHEMISTRY 2022; 202:113300. [PMID: 35798090 DOI: 10.1016/j.phytochem.2022.113300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 06/21/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Thirty-three natural products were isolated from the aerial parts of Antidesma bunius, Euphorbiaceae, a plant used in Vietnamese traditional medicine against rheumatoid arthritis. All compounds were reported the first time for this species, and nine constituents resembled undescribed natural products, noticeably three coumarinolignans with 2,2-dimethyl-1,3-dioxolane moiety, two cyclopeptides, and two furofuran-type lignans connected with a phenylpropanoid moiety. The individual structures were elucidated by combining NMR and MS data, and their configuration was established by NOESY and ECD experiments and NMR calculations. Compounds with sufficient amount were analyzed for their inhibition of advanced glycation endproducts (AGEs) formation, metabolites involved in many diseases like Alzheimer, joint diseases or diabetes. With IC50 values below 0.2 mM rutin and p-hydroxyphenethyl trans-ferulate showed to be moderately active, both still being 10-times more active than the positive control aminoguanidine.
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Affiliation(s)
- Hieu Nguyen-Ngoc
- Institute of Pharmacy, Pharmacognosy, Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80-82/IV, 6020, Innsbruck, Austria; Faculty of Pharmacy, PHENIKAA University, Hanoi, 12116, Viet Nam
| | - Mostafa Alilou
- Institute of Pharmacy, Pharmacognosy, Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80-82/IV, 6020, Innsbruck, Austria
| | - Séverine Derbré
- SONAS, EA921, UNIV Angers, SFR QUASAV, Faculty of Health Sciences, Dpt Pharmacy, 16 Bd Daviers, 49045, Angers cedex 01, France
| | - Patricia Blanchard
- SONAS, EA921, UNIV Angers, SFR QUASAV, Faculty of Health Sciences, Dpt Pharmacy, 16 Bd Daviers, 49045, Angers cedex 01, France
| | - Giang Nam Pham
- College of Pharmacy, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Duc Trong Nghiem
- Department of Botany, Hanoi University of Pharmacy, 13-15 Le Thanh Tong, Hoan Kiem, Hanoi, 10000, Viet Nam
| | - Pascal Richomme
- SONAS, EA921, UNIV Angers, SFR QUASAV, Faculty of Health Sciences, Dpt Pharmacy, 16 Bd Daviers, 49045, Angers cedex 01, France
| | - Hermann Stuppner
- Institute of Pharmacy, Pharmacognosy, Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80-82/IV, 6020, Innsbruck, Austria
| | - Markus Ganzera
- Institute of Pharmacy, Pharmacognosy, Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80-82/IV, 6020, Innsbruck, Austria.
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4
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Boness HVM, de Oliveira MS, Batista CSC, Almeida LS, Boffo EF, Villarreal CF, Cruz FG. Anti-Inflammatory and Antinociceptive Properties of Kielmeyerone A, a Chromenone Isolated from the Roots of Kielmeyera reticulata. JOURNAL OF NATURAL PRODUCTS 2021; 84:2157-2164. [PMID: 34283606 DOI: 10.1021/acs.jnatprod.1c00157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Four new chromenones, kielmeyerones A-D (1-4), were obtained from the roots of Kielmeyera reticulata. Their structures were elucidated based on spectroscopic data (NMR and HRESIMS) interpretation. The pharmacological activity of kielmeyerone A (1), the major compound, was evaluated using in vitro and in vivo inflammation and pain models. During in vitro screening, 1, at noncytotoxic concentrations (0.097-1.56 μM), inhibited NO production by J774 macrophages stimulated with LPS and IFN-γ. In the complete Freund's adjuvant-induced inflammation model in mice, 1 (12.5-50 mg/kg) inhibited paw edema, demonstrating an anti-inflammatory effect. Additionally, 1 (12.5-50 mg/kg) induced a dose-dependent antinociceptive effect in the late phase of the formalin test, a profile similar to those of nonsteroidal anti-inflammatory drugs. Mice treated with 1 (100 mg/kg) did not show motor performance alterations using a rota-rod test. Thus, the present study has characterized new chromenones from Kielmeyera reticulata and has provided evidence of the anti-inflammatory and antinociceptive properties of one of these, kielmeyerone A (1).
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Affiliation(s)
- Heiter V M Boness
- Department of Organic Chemistry, Institute of Chemistry, Federal University of Bahia, Salvador, Bahia 40170-115, Brazil
| | - Milena S de Oliveira
- Department of Organic Chemistry, Institute of Chemistry, Federal University of Bahia, Salvador, Bahia 40170-115, Brazil
| | - Carine S C Batista
- Department of Organic Chemistry, Institute of Chemistry, Federal University of Bahia, Salvador, Bahia 40170-115, Brazil
| | - Leticia S Almeida
- School of Pharmacy, Federal University of Bahia, Salvador, Bahia 40170-290, Brazil
| | - Elisangela F Boffo
- Department of Organic Chemistry, Institute of Chemistry, Federal University of Bahia, Salvador, Bahia 40170-115, Brazil
| | | | - Frederico G Cruz
- Department of Organic Chemistry, Institute of Chemistry, Federal University of Bahia, Salvador, Bahia 40170-115, Brazil
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5
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Orfanoudaki M, Hartmann A, Alilou M, Gelbrich T, Planchenault P, Derbré S, Schinkovitz A, Richomme P, Hensel A, Ganzera M. Absolute Configuration of Mycosporine-Like Amino Acids, Their Wound Healing Properties and In Vitro Anti-Aging Effects. Mar Drugs 2019; 18:E35. [PMID: 31906052 PMCID: PMC7024213 DOI: 10.3390/md18010035] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/20/2019] [Accepted: 12/28/2019] [Indexed: 01/01/2023] Open
Abstract
Mycosporine-like amino acids (MAAs) are water-soluble metabolites, reported to exhibit strong UV-absorbing properties. They have been found in a wide range of marine organisms, especially those that are exposed to extreme levels of sunlight, to protect them against solar radiation. In the present study, the absolute configuration of 14 mycosporine-like-amino acids was determined by combining the results of electronic circular dichroism (ECD) experiments and that of advanced Marfey's method using LC-MS. The crystal structure of a shinorine hydrate was determined from single crystal X-ray diffraction data and its absolute configuration was established from anomalous-dispersion effects. Furthermore, the anti-aging and wound-healing properties of these metabolites were evaluated in three different assays namely the inhibition of collagenase, inhibition of advanced glycation end products (AGEs) and wound healing assay (scratch assay).
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Affiliation(s)
- Maria Orfanoudaki
- Institute of Pharmacy, Pharmacognosy, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (M.O.); (M.A.); (M.G.)
| | - Anja Hartmann
- Institute of Pharmacy, Pharmacognosy, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (M.O.); (M.A.); (M.G.)
| | - Mostafa Alilou
- Institute of Pharmacy, Pharmacognosy, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (M.O.); (M.A.); (M.G.)
| | - Thomas Gelbrich
- Institute of Pharmacy, Pharmaceutical Technology, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria;
| | - Patricia Planchenault
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, 16 Bd Daviers, 49045 Angers, France; (P.P.); (S.D.); (A.S.); (P.R.)
| | - Séverine Derbré
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, 16 Bd Daviers, 49045 Angers, France; (P.P.); (S.D.); (A.S.); (P.R.)
| | - Andreas Schinkovitz
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, 16 Bd Daviers, 49045 Angers, France; (P.P.); (S.D.); (A.S.); (P.R.)
| | - Pascal Richomme
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, 16 Bd Daviers, 49045 Angers, France; (P.P.); (S.D.); (A.S.); (P.R.)
| | - Andreas Hensel
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany;
| | - Markus Ganzera
- Institute of Pharmacy, Pharmacognosy, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (M.O.); (M.A.); (M.G.)
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6
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Li SS, Lv X, Ren D, Shao CL, Liu Q, Xiao J. Redox-triggered cascade dearomative cyclizations enabled by hexafluoroisopropanol. Chem Sci 2018; 9:8253-8259. [PMID: 30542574 PMCID: PMC6240893 DOI: 10.1039/c8sc03339k] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 08/31/2018] [Indexed: 12/14/2022] Open
Abstract
An unprecedented cascade dearomative cyclization through hydrogen-bonding-assisted hydride transfer is realized. The aggregate effect of HFIP enables the rapid buildup of polycyclic amines directly from phenols and o-aminobenzaldehydes via a cascade dearomatization/rearomatization/dearomatization sequence. This unique transformation addressed the drawbacks of hydride transfer-involved redox-neutral reactions.
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Affiliation(s)
- Shuai-Shuai Li
- Shandong Province Key Laboratory of Applied Mycology , College of Chemistry and Pharmaceutical Sciences , Qingdao Agricultural University , Qingdao , 266109 , China .
| | - Xintong Lv
- Shandong Province Key Laboratory of Applied Mycology , College of Chemistry and Pharmaceutical Sciences , Qingdao Agricultural University , Qingdao , 266109 , China .
| | - Didi Ren
- Shandong Province Key Laboratory of Applied Mycology , College of Chemistry and Pharmaceutical Sciences , Qingdao Agricultural University , Qingdao , 266109 , China .
| | - Chang-Lun Shao
- Key Laboratory of Marine Drugs , The Ministry of Education of China , School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , China
| | - Qing Liu
- College of Chemical and Environmental Engineering , Shandong University of Science and Technology , Qingdao 266590 , China
| | - Jian Xiao
- Shandong Province Key Laboratory of Applied Mycology , College of Chemistry and Pharmaceutical Sciences , Qingdao Agricultural University , Qingdao , 266109 , China .
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7
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Karunakaran T, Ismail IS, Ee GCL, Nor SMM, Palachandran K, Santhanam RK. Nitric oxide inhibitory and anti- Bacillus activity of phenolic compounds and plant extracts from Mesua species. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2018. [DOI: 10.1016/j.bjp.2018.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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8
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Tanjung M, Rachmadiarti F, Saputri RD, Tjahjandarie TS. Mesucalophylloidin, a new isoprenylated 4-phenylcoumarin from Mesua calophylloides (Ridl.) Kosterm. Nat Prod Res 2017; 32:1062-1067. [DOI: 10.1080/14786419.2017.1378215] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Mulyadi Tanjung
- Natural Products Chemistry Research Group, Organic Chemistry Division, Faculty of Science and Technology, Department of Chemistry, Universitas Airlangga, Surabaya, Indonesia
| | - Fida Rachmadiarti
- Faculty of Mathematics and Natural Sciences, Department of Biology, Universitas Negeri Surabaya, Surabaya, Indonesia
| | - Ratih Dewi Saputri
- Natural Products Chemistry Research Group, Organic Chemistry Division, Faculty of Science and Technology, Department of Chemistry, Universitas Airlangga, Surabaya, Indonesia
| | - Tjitjik Srie Tjahjandarie
- Natural Products Chemistry Research Group, Organic Chemistry Division, Faculty of Science and Technology, Department of Chemistry, Universitas Airlangga, Surabaya, Indonesia
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9
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Olmedo DA, López-Pérez JL, Del Olmo E, Bedoya LM, Sancho R, Alcamí J, Muñoz E, Feliciano AS, Gupta MP. Neoflavonoids as Inhibitors of HIV-1 Replication by Targeting the Tat and NF-κB Pathways. Molecules 2017; 22:E321. [PMID: 28218730 PMCID: PMC6155902 DOI: 10.3390/molecules22020321] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 01/19/2017] [Accepted: 02/16/2017] [Indexed: 11/16/2022] Open
Abstract
Twenty-eight neoflavonoids have been prepared and evaluated in vitro against HIV-1. Antiviral activity was assessed on MT-2 cells infected with viral clones carrying the luciferase reporter gene. Inhibition of HIV transcription and Tat function were tested on cells stably transfected with the HIV-LTR and Tat protein. Seven 4-phenylchromen-2-one derivatives showed HIV transcriptional inhibitory activity but only the phenylchrome-2-one 10 inhibited NF-κB and displayed anti-Tat activity simultaneously. Compounds 10, 14, and 25, inhibited HIV replication in both targets at concentrations <25 μM. The assays of these synthetic 4-phenylchromen-2-ones may aid in the investigation of some aspects of the anti-HIV activity of such compounds and could serve as a scaffold for designing better anti-HIV compounds, which may lead to a potential anti-HIV therapeutic drug.
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Affiliation(s)
- Dionisio A Olmedo
- Pharmaceutical Chemistry Area, Department of Pharmaceutical Sciences, University of Salamanca, Faculty of Pharmacy, CIETUS, IBSAL, Campus Miguel de Unamuno, 37007 Salamanca, Spain.
| | - José Luis López-Pérez
- Pharmaceutical Chemistry Area, Department of Pharmaceutical Sciences, University of Salamanca, Faculty of Pharmacy, CIETUS, IBSAL, Campus Miguel de Unamuno, 37007 Salamanca, Spain.
| | - Esther Del Olmo
- Pharmaceutical Chemistry Area, Department of Pharmaceutical Sciences, University of Salamanca, Faculty of Pharmacy, CIETUS, IBSAL, Campus Miguel de Unamuno, 37007 Salamanca, Spain.
| | - Luis M Bedoya
- National Centre of Microbiology, Institute Carlos III, Crt. Majadahonda a Pozuelo, 28220 Majadahonda, Madrid, Spain.
- Pharmacology Department, College of Pharmacy, Complutense University. Pz. Ramón Y Cajal s/n, 28040 Madrid, Spain.
| | - Rocío Sancho
- Department of Cellular Biology, Physiology and Immunology, University of Córdoba, Faculty of Medicine Avda de Menendez Pidal s/n, 14004 Córdoba, Spain.
| | - José Alcamí
- National Centre of Microbiology, Institute Carlos III, Crt. Majadahonda a Pozuelo, 28220 Majadahonda, Madrid, Spain.
| | - Eduardo Muñoz
- Department of Cellular Biology, Physiology and Immunology, University of Córdoba, Faculty of Medicine Avda de Menendez Pidal s/n, 14004 Córdoba, Spain.
| | - Arturo San Feliciano
- Pharmaceutical Chemistry Area, Department of Pharmaceutical Sciences, University of Salamanca, Faculty of Pharmacy, CIETUS, IBSAL, Campus Miguel de Unamuno, 37007 Salamanca, Spain.
| | - Mahabir P Gupta
- CIFLORPAN, Center for Pharmacognostic Research on Panamanian Flora, College of Pharmacy, University of Panama, P.O. Box 0824-00172 Panama, Panama.
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10
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Rouger C, Pagie S, Derbré S, Le Ray AM, Richomme P, Charreau B. Prenylated Polyphenols from Clusiaceae and Calophyllaceae with Immunomodulatory Activity on Endothelial Cells. PLoS One 2016; 11:e0167361. [PMID: 27907087 PMCID: PMC5131938 DOI: 10.1371/journal.pone.0167361] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 11/12/2016] [Indexed: 12/19/2022] Open
Abstract
Endothelial cells (ECs) are key players in inflammation and immune responses involved in numerous pathologies. Although attempts were experimentally undertaken to prevent and control EC activation, drug leads and probes still remain necessary. Natural products (NPs) from Clusiaceous and Calophyllaceous plants were previously reported as potential candidates to prevent endothelial dysfunction. The present study aimed to identify more precisely the molecular scaffolds that could limit EC activation. Here, 13 polyphenols belonging to 5 different chemical types of secondary metabolites (i.e., mammea coumarins, a biflavonoid, a pyranochromanone acid, a polyprenylated polycyclic acylphloroglucinol (PPAP) and two xanthones) were tested on resting and cytokine-activated EC cultures. Quantitative and qualitative changes in the expression of both adhesion molecules (VCAM-1, ICAM-1, E-selectin) and major histocompatibility complex (MHC) molecules have been used to measure their pharmaceutical potential. As a result, we identified 3 mammea coumarins that efficiently reduce (up to >90% at 10 μM) both basal and cytokine-regulated levels of MHC class I, class II, MICA and HLA-E on EC surface. They also prevented VCAM-1 induction upon inflammation. From a structural point of view, our results associate the loss of the free prenyl group substituting mammea coumarins with a reduced cellular cytotoxicity but also an abrogation of their anti-inflammatory potential and a reduction of their immunosuppressive effects. A PPAP, guttiferone J, also triggers a strong immunomodulation but restricted to HLA-E and MHC class II molecules. In conclusion, mammea coumarins with a free prenyl group and the PPAP guttiferone J emerge as NPs able to drastically decrease both VCAM-1 and a set of MHC molecules and to potentially reduce the immunogenicity of the endothelium.
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Affiliation(s)
- Caroline Rouger
- Université d’Angers, Campus du végétal, SFR4207 QUASAV, EA921 SONAS, Beaucouzé, France
| | - Sylvain Pagie
- INSERM UMR1064, Centre de Recherche en Transplantation et Immunologie, IHU CESTI, LabEx IGO and LabEx Transplantex, Nantes, France
- CHU de Nantes, Institut de Transplantation-Urologie-Néphrologie, ITUN, Nantes, France
- LUNAM, Université de Nantes, Faculté de Médecine, Nantes, France
| | - Séverine Derbré
- Université d’Angers, Campus du végétal, SFR4207 QUASAV, EA921 SONAS, Beaucouzé, France
| | - Anne-Marie Le Ray
- Université d’Angers, Campus du végétal, SFR4207 QUASAV, EA921 SONAS, Beaucouzé, France
| | - Pascal Richomme
- Université d’Angers, Campus du végétal, SFR4207 QUASAV, EA921 SONAS, Beaucouzé, France
| | - Béatrice Charreau
- INSERM UMR1064, Centre de Recherche en Transplantation et Immunologie, IHU CESTI, LabEx IGO and LabEx Transplantex, Nantes, France
- CHU de Nantes, Institut de Transplantation-Urologie-Néphrologie, ITUN, Nantes, France
- LUNAM, Université de Nantes, Faculté de Médecine, Nantes, France
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11
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Tejedor D, Delgado-Hernández S, Ingold M, García-Tellado F. Synthesis of α-Quaternized 2,4-Cyclohexadienones from Propargyl Vinyl Ethers. J Org Chem 2016; 81:10099-10105. [PMID: 27709940 DOI: 10.1021/acs.joc.6b02137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A microwave-assisted and base-catalyzed domino manifold to construct 2,4-cyclohexadienone derivatives has been implemented. The domino manifold uses easily accessible tertiary propargyl vinyl ethers bearing a methine group at the homopropargylic position and imidazole as the catalyst to deliver 2,4-cyclohexadienones featuring a key formyl group and a quaternized carbon atom in good yields.
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Affiliation(s)
- David Tejedor
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Samuel Delgado-Hernández
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Mariana Ingold
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
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12
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Affiliation(s)
- Pascal Richomme
- EA921 SONAS, SFR4207 QUASAV, Campus du vegetal, University of Angers, 49070 Beaucouzé, France.
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