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Ledoux A, Bériot D, Mamede L, Desdemoustier P, Detroz F, Jansen O, Frédérich M, Maquoi E. Cytotoxicity of Poupartone B, an Alkyl Cyclohexenone Derivative from Poupartia borbonica, against Human Cancer Cell Lines. PLANTA MEDICA 2021; 87:1008-1017. [PMID: 34687029 DOI: 10.1055/a-1532-2384] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Poupartia borbonica is an endemic tree from the Mascarene Islands that belongs to the Anacardiaceae family. The leaves of this plant were phytochemically studied previously, and isolated alkyl cyclohexenone derivatives, poupartones A - C, demonstrated antiplasmodial and antimalarial activities. In addition to their high potency against the Plasmodium sp., high toxicity on human cells was also displayed. The present study aims to investigate in more detail the cytotoxicity and pharmacological interest of poupartone B, one of the most abundant derivatives in the leaves of P. borbonica. For that purpose, real-time live-cell imaging of different human cancer cell lines and normal fibroblasts, treated or not treated with poupartone B, was performed. A potent inhibition of cell proliferation associated with the induction of cell death was observed. A detailed morphological analysis of different adherent cell lines exposed to high concentrations of poupartone B (1 - 2 µg/mL) demonstrated that this compound induced an array of cellular alterations, including a rapid retraction of cellular protrusions associated with cell rounding, massive cytoplasmic vacuolization, loss of plasma membrane integrity, and plasma membrane bubbling, ultimately leading to paraptosis-like cell death. The structure-activity relation of this class of compounds, their selective toxicity, and pharmacological potential are discussed.
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Affiliation(s)
- Allison Ledoux
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines (CIRM), University of Liège, Belgium
| | - Daphnée Bériot
- Laboratory of Tumors and development Biology, GIGA-Cancer, CIRM, University of Liège, Liège, Belgium
| | - Lucia Mamede
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines (CIRM), University of Liège, Belgium
| | - Pauline Desdemoustier
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines (CIRM), University of Liège, Belgium
| | - Fanny Detroz
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines (CIRM), University of Liège, Belgium
| | - Olivia Jansen
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines (CIRM), University of Liège, Belgium
| | - Michel Frédérich
- Laboratory of Pharmacognosy, Center of Interdisciplinary Research on Medicines (CIRM), University of Liège, Belgium
| | - Erik Maquoi
- Laboratory of Tumors and development Biology, GIGA-Cancer, CIRM, University of Liège, Liège, Belgium
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Kil YS, Risinger AL, Petersen CL, Liang H, Grkovic T, O’Keefe BR, Mooberry SL, Cichewicz RH. Using the Cancer Dependency Map to Identify the Mechanism of Action of a Cytotoxic Alkenyl Derivative from the Fruit of Choerospondias axillaris. JOURNAL OF NATURAL PRODUCTS 2020; 83:584-592. [PMID: 32105068 PMCID: PMC7864215 DOI: 10.1021/acs.jnatprod.9b00896] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
An extract prepared from the fruit of Choerospondias axillaris exhibited differential cytotoxic effects when tested in a panel of pediatric cancer cell lines [Ewing sarcoma (A-673), rhabdomyosarcoma (SJCRH30), medulloblastoma (D283), and hepatoblastoma (Hep293TT)]. Bioassay-guided fractionation led to the purification of five new hydroquinone-based metabolites, choerosponols A-E (1-5), bearing unsaturated hydrocarbon chains. The structures of the natural products were determined using a combination of 1D and 2D NMR, HRESIMS, ECD spectroscopy, and Mosher ester analyses. The purified compounds were evaluated for their antiproliferative and cytotoxic activities, revealing that 1, which contains a benzofuran moiety, exhibited over 50-fold selective antiproliferative activity against Ewing sarcoma and medulloblastoma cells with growth inhibitory (GI50) values of 0.19 and 0.07 μM, respectively. The effects of 1 were evaluated in a larger panel of cancer cell lines, and these data were used in turn to interrogate the Project Achilles cancer dependency database, leading to the identification of the MCT1 transporter as a functional target of 1. These data highlight the utility of publicly available cancer dependency databases such as Project Achilles to facilitate the identification of the mechanisms of action of compounds with selective activities among cancer cell lines, which can be a major challenge in natural products drug discovery.
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Affiliation(s)
- Yun-Seo Kil
- Natural Products Discovery Group, Institute for Natural Products Applications and Research Technologies, Department of Chemistry & Biochemistry, Stephenson Life Science Research Center, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - April L. Risinger
- Department of Pharmacology, Mays Cancer Center, University of Texas Health Science Center, San Antonio, Texas, 78229, United States
- Mays Cancer Center, University of Texas Health Science Center, San Antonio, Texas, 78229, United States
| | - Cora L. Petersen
- Department of Pharmacology, Mays Cancer Center, University of Texas Health Science Center, San Antonio, Texas, 78229, United States
| | - Huiyun Liang
- Department of Pharmacology, Mays Cancer Center, University of Texas Health Science Center, San Antonio, Texas, 78229, United States
| | - Tanja Grkovic
- Natural Products Support Group, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, 21702, United States
| | - Barry R. O’Keefe
- Natural Products Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, Frederick, Maryland, 21702, United States
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, United States
| | - Susan L. Mooberry
- Department of Pharmacology, Mays Cancer Center, University of Texas Health Science Center, San Antonio, Texas, 78229, United States
- Mays Cancer Center, University of Texas Health Science Center, San Antonio, Texas, 78229, United States
| | - Robert H. Cichewicz
- Natural Products Discovery Group, Institute for Natural Products Applications and Research Technologies, Department of Chemistry & Biochemistry, Stephenson Life Science Research Center, University of Oklahoma, Norman, Oklahoma 73019, United States
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Cherchar H, Lehbili M, Berrehal D, Morjani H, Alabdul Magid A, Voutquenne-Nazabadioko L, Kabouche A, Kabouche Z. A new 2-alkylhydroquinone glucoside from Phagnalon saxatile (L.) Cass. Nat Prod Res 2017; 32:1010-1016. [PMID: 28942671 DOI: 10.1080/14786419.2017.1375918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A new 2-alkylhydroquinone glucoside, 1-O-β-d-glucopyranosyl-1,4-dihydroxy-2-((E) 2-oxo-3-butenyl)benzene (1), in addition to nine known compounds were isolated from the aerial parts of Phagnalon saxatile (L.) Cass. (Asteraceae). Their structures were identified based on spectroscopic methods including 1D and 2D NMR, mass spectrometry (HR-ESI-MS), UV spectral analyses and by comparison with literature data. The cytotoxic activity of three isolated compounds (1-3) was evaluated against fibrosarcoma (HT1080), human lung cancer (A549) and breast cancer (MCF7) cell lines.
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Affiliation(s)
- Hanene Cherchar
- a Université des frères Mentouri-Constantine, Département de chimie, Laboratoire d'Obtention des Substances Thérapeutiques (LOST) , Constantine , Algeria
| | - Meriem Lehbili
- a Université des frères Mentouri-Constantine, Département de chimie, Laboratoire d'Obtention des Substances Thérapeutiques (LOST) , Constantine , Algeria
| | - Djemaa Berrehal
- a Université des frères Mentouri-Constantine, Département de chimie, Laboratoire d'Obtention des Substances Thérapeutiques (LOST) , Constantine , Algeria
| | - Hamid Morjani
- c Faculté de Pharmacie , MEDyC UMR CNRS 7369, URCA , Reims , France
| | | | | | - Ahmed Kabouche
- a Université des frères Mentouri-Constantine, Département de chimie, Laboratoire d'Obtention des Substances Thérapeutiques (LOST) , Constantine , Algeria
| | - Zahia Kabouche
- a Université des frères Mentouri-Constantine, Département de chimie, Laboratoire d'Obtention des Substances Thérapeutiques (LOST) , Constantine , Algeria
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Ledoux A, St-Gelais A, Cieckiewicz E, Jansen O, Bordignon A, Illien B, Di Giovanni N, Marvilliers A, Hoareau F, Pendeville H, Quetin-Leclercq J, Frédérich M. Antimalarial Activities of Alkyl Cyclohexenone Derivatives Isolated from the Leaves of Poupartia borbonica. JOURNAL OF NATURAL PRODUCTS 2017; 80:1750-1757. [PMID: 28557449 DOI: 10.1021/acs.jnatprod.6b01019] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bioactivity-guided fractionation of the ethyl acetate extract of the leaves of Poupartia borbonica led to the isolation of three new alkyl cyclohexenone derivatives 1-3, and named Poupartone A-C. The structures of the new compounds were elucidated by 1D and 2D NMR spectroscopic data analysis and MS, whereas calculated and experimental ECD spectra were used to define the absolute configurations. These compounds were active against 3D7 and W2 Plasmodium falciparum strains with IC50 values between 0.55 and 1.81 μM. In vitro cytotoxicity against WI38 human fibroblasts and the human cervical cancer cell line HeLa (WST-1 assay) showed that these compounds were also cytotoxic, but no hemolytic activity was observed for the extract and pure compounds. An in vivo antimalarial assay was performed on the major cyclohexenone using P. berghei-infected mice at a dose of 15 mg/kg/day ip. The assay revealed growth inhibition of 59.1 and 69.5% at days 5 and 7 postinfection, respectively, although some toxicity was observed. Zebrafish larvae were used as a model to determine the type of toxicity, and the results showed cardiac toxicity. The methanol extract was also studied, and it displayed moderate antiplasmodial properties in vitro. This extract contained the known flavonoids, quercetin, 3'-O-hydroxysulfonylquercetin, quercitrin, and isoquercitrin as well as ellagic acid, which showed high to low activity against the 3D7 P. falciparum strain.
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Affiliation(s)
- Allison Ledoux
- Laboratory of Pharmacognosy, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège , Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Alexis St-Gelais
- Laboratory of Pharmacognosy, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège , Avenue Hippocrate 15, 4000 Liège, Belgium
- Laboratoire d'Analyses et de Séparation des Essences Végétales (LASEVE), Université du Québec à Chicoutimi , 555 Boulevard de l'Université, Saguenay, Québec G7H 2B1, Canada
| | - Ewa Cieckiewicz
- Laboratory of Pharmacognosy, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège , Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Olivia Jansen
- Laboratory of Pharmacognosy, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège , Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Annélise Bordignon
- Laboratory of Pharmacognosy, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège , Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Bertrand Illien
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments (LCSNA), University of Reunion Island , Avenue René Cassin 15, 97744 Saint-Denis, La Réunion France
| | - Nicolas Di Giovanni
- Laboratoire de Chimie Analytique Organique et Biologique (OBiAChem), University of Liège , Allée de la Chimie 3, Sart-Tilman, 4000 Liège, Belgium
| | - Arnaud Marvilliers
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments (LCSNA), University of Reunion Island , Avenue René Cassin 15, 97744 Saint-Denis, La Réunion France
| | - Floriane Hoareau
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments (LCSNA), University of Reunion Island , Avenue René Cassin 15, 97744 Saint-Denis, La Réunion France
| | - Hélène Pendeville
- Plateforme Zebrafish Facility and Transgenics, GIGA, University of Liège , Avenue Hippocrate 15, 4000 Liège, Belgium
| | - Joëlle Quetin-Leclercq
- Pharmacognosy Research Group, Louvain Drug Research Institute, Université Catholique de Louvain , Avenue E. Mounier, B1 72.03, B-1200 Brussels, Belgium
| | - Michel Frédérich
- Laboratory of Pharmacognosy, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège , Avenue Hippocrate 15, 4000 Liège, Belgium
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5
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Choerosponins A and B, Two New Cytotoxic Bridged-Ring Ketones and the Determination of Their Absolute Configurations. Molecules 2017; 22:molecules22040531. [PMID: 28346393 PMCID: PMC6154574 DOI: 10.3390/molecules22040531] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 03/21/2017] [Accepted: 03/23/2017] [Indexed: 11/23/2022] Open
Abstract
Bioactivity-directed fractionation of antitumor compounds from the stem barks of Choerospondias axillaries (Roxb.) Burtt et Hill (Anacardiaceae) afforded two new cytotoxic bridged-ring ketones, choerosponins A (1) and B (2), and their structures were elucidated by spectroscopic methods; their stereochemistry was determined by NOE difference experiments, CD spectra and the modified Mosher’s method. Compound 1 has a rare dioxatricyclo skeleton. Flow cytometry and SRB methods were employed to evaluate the antitumor activity of the two compounds against tsFT210, HCT-15, HeLa, A2780 and MCF-7 cell lines, and both of them showed strong cytotoxicity. MTT and paper disc methods were also used to evaluate their anti-hypoxia and antibacterial activities, and both of them showed no apparent activities.
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Rodrigues AMG, Guimarães DO, Konno TUP, Tinoco LW, Barth T, Aguiar FA, Lopes NP, Leal ICR, Raimundo JM, Muzitano MF. Phytochemical Study of Tapirira guianensis Leaves Guided by Vasodilatory and Antioxidant Activities. Molecules 2017; 22:molecules22020304. [PMID: 28218702 PMCID: PMC6155791 DOI: 10.3390/molecules22020304] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 01/31/2017] [Accepted: 02/01/2017] [Indexed: 01/28/2023] Open
Abstract
The aim of this research was to perform a phytochemical study of the methanol leaves extract of T. guianensis (MET) guided by vasodilatory and antioxidant activities. The chemical profile of MET and the ethyl acetate fraction (EA fraction) was determined by HPLC-UV-MS and EA fraction guided fractionation by reverse-phase chromatography. The vasorelaxant effects of MET, fractions, sub-fractions and constituents were assessed on rat aorta pre-contracted with phenylephrine. Antioxidant activity was evaluated by using a DPPH assay. The results show that MET-induced vasodilation was dependent on NO/cGMP; and that the PI3K/Akt pathway seems to be the main route involved in eNOS activation. The EA fraction showed greater vasodilatory and antioxidant potency and was submitted to further fractionation. This allowed the isolation and characterization of quercetin, quercetin 3-O-(6″-O-galloyl)-β-d-galactopyranoside and 1,4,6-tri-O-galloyl-β-d-glucose. Also, galloyl-HHDP-hexoside and myricetin deoxyhexoside were identified by HPLC-UV-MS. These compounds are being described for the first time for T. guianensis. 1,4,6-tri-O-galloyl-β-d-glucose and quercetin 3-O-(6″-O-galloyl)-β-d-galactopyranoside showed no vasodilatory activity. Quercetin and myricetin glycoside seems to contribute to the MET activity, since they have been reported as vasodilatory flavonoids. MET-induced vasodilation could contribute to the hypotensive effect of T. guianensis previously reported.
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Affiliation(s)
- Amélia M G Rodrigues
- Laboratório de Biologia do Reconhecer, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, 28013-602 Rio de Janeiro, Brazil.
- Laboratório Integrado de Pesquisa, Universidade Federal do Rio de Janeiro, Campus Macaé, Av. Aluízio da Silva Gomes, 50, Novo Cavaleiros, Macaé, 27930-560 Rio de Janeiro, Brazil.
- Laboratório de Produtos Bioativos, Universidade Federal do Rio de Janeiro, Campus Macaé, Polo Novo Cavaleiro-IMCT, R. Alcides da Conceição, 159, Novo Cavaleiros, Macaé, 27933-378 Rio de Janeiro, Brazil.
| | - Denise O Guimarães
- Laboratório de Produtos Bioativos, Universidade Federal do Rio de Janeiro, Campus Macaé, Polo Novo Cavaleiro-IMCT, R. Alcides da Conceição, 159, Novo Cavaleiros, Macaé, 27933-378 Rio de Janeiro, Brazil.
| | - Tatiana U P Konno
- Núcleo de Estudos em Ecologia e Desenvolvimento Sócio-Ambiental de Macaé, Universidade Federal do Rio de Janeiro, Av. São José Barreto, 764-São José do Barreto. Macaé, 27965-045 Rio de Janeiro, Brazil.
| | - Luzineide W Tinoco
- Instituto de Pesquisa de Produtos Naturais Walter Mors, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Brazil.
| | - Thiago Barth
- Laboratório de Produtos Bioativos, Universidade Federal do Rio de Janeiro, Campus Macaé, Polo Novo Cavaleiro-IMCT, R. Alcides da Conceição, 159, Novo Cavaleiros, Macaé, 27933-378 Rio de Janeiro, Brazil.
| | - Fernando A Aguiar
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos, Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Av. do Café s/n. 14040-020 Ribeirão Preto, Brazil.
- Laboratório de Química, Universidade Federal do Rio de Janeiro-Campus Macaé, Av. Aluízio da Silva Gomes, 50, Novo Cavaleiros. Macaé, 27930-560 Rio de Janeiro, Brazil.
| | - Norberto P Lopes
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos, Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Av. do Café s/n. 14040-020 Ribeirão Preto, Brazil.
| | - Ivana C R Leal
- Laboratório de Produtos Naturais e Ensaios Biológicos, Departamento De Produtos Naturais e Alimentos, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, 21941-902 Rio de Janeiro, Brazil.
| | - Juliana M Raimundo
- Laboratório Integrado de Pesquisa, Universidade Federal do Rio de Janeiro, Campus Macaé, Av. Aluízio da Silva Gomes, 50, Novo Cavaleiros, Macaé, 27930-560 Rio de Janeiro, Brazil.
| | - Michelle F Muzitano
- Laboratório de Produtos Bioativos, Universidade Federal do Rio de Janeiro, Campus Macaé, Polo Novo Cavaleiro-IMCT, R. Alcides da Conceição, 159, Novo Cavaleiros, Macaé, 27933-378 Rio de Janeiro, Brazil.
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Silva-Oliveira RJ, Lopes GF, Camargos LF, Ribeiro AM, Santos FVD, Severino RP, Severino VGP, Terezan AP, Thomé RG, Santos HBD, Reis RM, Ribeiro RIMDA. Tapirira guianensis Aubl. Extracts Inhibit Proliferation and Migration of Oral Cancer Cells Lines. Int J Mol Sci 2016; 17:E1839. [PMID: 27834805 PMCID: PMC5133839 DOI: 10.3390/ijms17111839] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 10/11/2016] [Accepted: 10/12/2016] [Indexed: 11/17/2022] Open
Abstract
Cancer of the head and neck is a group of upper aerodigestive tract neoplasms in which aggressive treatments may cause harmful side effects to the patient. In the last decade, investigations on natural compounds have been particularly successful in the field of anticancer drug research. Our aim is to evaluate the antitumor effect of Tapirira guianensis Aubl. extracts on a panel of head and neck squamous cell carcinoma (HNSCC) cell lines. Analysis of secondary metabolites classes in fractions of T. guianensis was performed using Nuclear Magnetic Resonance (NMR). Mutagenicity effect was evaluated by Ames mutagenicity assay. The cytotoxic effect, and migration and invasion inhibition were measured. Additionally, the expression level of apoptosis-related molecules (PARP, Caspases 3, and Fas) and MMP-2 was detected using Western blot. Heterogeneous cytotoxicity response was observed for all fractions, which showed migration inhibition, reduced matrix degradation, and decreased cell invasion ability. Expression levels of MMP-2 decreased in all fractions, and particularly in the hexane fraction. Furthermore, overexpression of FAS and caspase-3, and increase of cleaved PARP indicates possible apoptosis extrinsic pathway activation. Antiproliferative activity of T. guianensis extract in HNSCC cells lines suggests the possibility of developing an anticancer agent or an additive with synergic activities associated with conventional anticancer therapy.
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Affiliation(s)
| | - Gabriela Francine Lopes
- Laboratory of Experimental Pathology, Federal University of São João del Rei-CCO/UFSJ, Divinópolis 35501-296, Brazil.
| | - Luiz Fernando Camargos
- Laboratory of Mutagenesis, Federal University of São João del Rei-CCO/UFSJ, Divinópolis 35501-296, Brazil.
| | - Ana Maciel Ribeiro
- Medical School, Federal University of Minas Gerais-UFMG, Belo Horizonte 31270-901, Brazil.
| | - Fábio Vieira Dos Santos
- Laboratory of Mutagenesis, Federal University of São João del Rei-CCO/UFSJ, Divinópolis 35501-296, Brazil.
| | - Richele Priscila Severino
- Special Academic Unit of Physics and Chemistry, Federal University of Goiás, Catalão 75704-020, Brazil.
| | | | - Ana Paula Terezan
- Special Academic Unit of Physics and Chemistry, Federal University of Goiás, Catalão 75704-020, Brazil.
| | - Ralph Gruppi Thomé
- Laboratory of Tissue Processing, Federal University of São João del Rei-CCO/UFSJ, Divinópolis 35501-296, Brazil.
| | - Hélio Batista Dos Santos
- Laboratory of Tissue Processing, Federal University of São João del Rei-CCO/UFSJ, Divinópolis 35501-296, Brazil.
| | - Rui Manuel Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, Brazil.
- Life and Health Sciences Research Institute (ICVS), Health Sciences School, University of Minho, Braga 4710-057, Portugal.
- 3ICVS/3B's-PT Government Associate Laboratory, Braga 4710-057, Portugal.
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Hati S, Sen S. N-Bromo-succinimide promoted synthesis of β-carbolines and 3,4-dihydro-β-carbolines from tetrahydro-β-carbolines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.01.081] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Okoth DA, Akala HM, Johnson JD, Koorbanally NA. Alkyl phenols, alkenyl cyclohexenones and other phytochemical constituents from Lannea rivae (chiov) Sacleux (Anacardiaceae) and their bioactivity. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1521-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Otto A, Porzel A, Schmidt J, Brandt W, Wessjohann L, Arnold N. Structure and Absolute Configuration of Pseudohygrophorones A(12) and B(12), Alkyl Cyclohexenone Derivatives from Hygrophorus abieticola (Basidiomycetes). JOURNAL OF NATURAL PRODUCTS 2016; 79:74-80. [PMID: 26722697 DOI: 10.1021/acs.jnatprod.5b00675] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Pseudohygrophorones A(12) (1) and B(12) (2), the first naturally occurring alkyl cyclohexenones from a fungal source, and the recently reported hygrophorone B(12) (3) have been isolated from fruiting bodies of the basidiomycete Hygrophorus abieticola Krieglst. ex Gröger & Bresinsky. Their structures were assigned on the basis of extensive one- and two-dimensional NMR spectroscopic analysis as well as ESI-HRMS measurements. The absolute configuration of the three stereogenic centers in the diastereomeric compounds 1 and 2 was established with the aid of (3)JH,H and (4)JH,H coupling constants, NOE interactions, and conformational analysis in conjunction with quantum chemical CD calculations. It was concluded that pseudohygrophorone A(12) (1) is 4S,5S,6S configured, while pseudohygrophorone B(12) (2) was identified as the C-6 epimer of 1, corresponding to the absolute configuration 4S,5S,6R. In addition, the mass spectrometric fragmentation behavior of 1-3 obtained by the higher energy collisional dissociation method allows a clear distinction between the pseudohygrophorones (1 and 2) and hygrophorone B(12) (3). The isolated compounds 1-3 exhibited pronounced activity against phytopathogenic organisms.
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Affiliation(s)
- Alexander Otto
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, D-06120 Halle/Saale, Germany
| | - Andrea Porzel
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, D-06120 Halle/Saale, Germany
| | - Jürgen Schmidt
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, D-06120 Halle/Saale, Germany
| | - Wolfgang Brandt
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, D-06120 Halle/Saale, Germany
| | - Ludger Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, D-06120 Halle/Saale, Germany
| | - Norbert Arnold
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, D-06120 Halle/Saale, Germany
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Okoth DA, Koorbanally NA. Cardanols, Long Chain Cyclohexenones and Cyclohexenols from Lannea schimperi (Anacardiaceae). Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Alkenyl cyclohexenones (1a-d), alkenyl cyclohexenols (2a-c and 3b-d) and cardanols (4a-d) were isolated from the stem bark and root of Lannea schimperi. The alkenyl cyclohexenones (1a and 1d) and cardanols (4a and 4d) have side chains which have not been reported previously, in combination with the core skeletal structures. In addition, compounds 2a-c and 3b-d are all new cyclohexenols. Also isolated were the triterpenes, taraxerone and taraxerol, and sitosterol. The suite of compounds isolated (cyclohexenones and cyclohexenols) make up a nice biosynthetic pathway to the cardanols. The 5-[alkenyl]-4,5-dihydroxycyclohex-2-enone mixture (1a-d) exhibited good in vitro cytotoxicity against the Chinese Hamster Ovarian mammalian cell-line. The compounds were identified mainly from GCMS and NMR spectroscopic techniques.
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Affiliation(s)
- Dorothy A. Okoth
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
| | - Neil A. Koorbanally
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
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12
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Taylor P, Arsenak M, Abad MJ, Fernández A, Milano B, Gonto R, Ruiz MC, Fraile S, Taylor S, Estrada O, Michelangeli F. Screening of Venezuelan medicinal plant extracts for cytostatic and cytotoxic activity against tumor cell lines. Phytother Res 2012; 27:530-9. [PMID: 22648665 DOI: 10.1002/ptr.4752] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Accepted: 05/05/2012] [Indexed: 12/21/2022]
Abstract
There are estimated to be more than 20,000 species of plants in Venezuela, of which more than 1500 are used for medicinal purposes by indigenous and local communities. Only a relatively small proportion of these have been evaluated in terms of their potential as antitumor agents. In this study, we screened 308 extracts from 102 species for cytostatic and cytotoxic activity against a panel of six tumor cell lines using a 24-h sulphorhodamine B assay. Extracts from Clavija lancifolia, Hamelia patens, Piper san-vicentense, Physalis cordata, Jacaranda copaia, Heliotropium indicum, and Annona squamosa were the most cytotoxic, whereas other extracts from Calotropis gigantea, Hyptis dilatata, Chromolaena odorata, Siparuna guianensis, Jacaranda obtusifolia, Tapirira guianensis, Xylopia aromatica, Protium heptaphyllum, and Piper arboreum showed the greatest cytostatic activity. These results confirm previous reports on the cytotoxic activities of the above-mentioned plants as well as prompting further studies on others such as C. lancifolia and H. dilatata that have not been so extensively studied.
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Affiliation(s)
- Peter Taylor
- Centro de Medicina Experimental, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela.
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13
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Cai S, Liu Z, Zhang W, Zhao X, Wang DZ. Gold-catalyzed [3+2] cycloaddition/hydrolytic Michael addition/retro-aldol reactions of propargylic esters tethered to cyclohexadienones. Angew Chem Int Ed Engl 2011; 50:11133-7. [PMID: 21960469 DOI: 10.1002/anie.201104028] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2011] [Revised: 07/30/2011] [Indexed: 01/21/2023]
Affiliation(s)
- Shunyou Cai
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen University Town, Shenzhen 518055, China
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14
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Cai S, Liu Z, Zhang W, Zhao X, Wang DZ. Gold-Catalyzed [3+2] Cycloaddition/Hydrolytic Michael Addition/Retro-Aldol Reactions of Propargylic Esters Tethered to Cyclohexadienones. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104028] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Chen YR, Y-Y R, Lin TY, Huang CP, Tang WC, Chen ST, Lin SB. Identification of an Alkylhydroquinone from Rhus succedanea as an Inhibitor of Tyrosinase and Melanogenesis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2009; 57:2200-2205. [PMID: 19159217 DOI: 10.1021/jf802617a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The alkylhydroquinone 10'(Z)-heptadecenylhydroquinone [HQ17(1)], isolated from the sap of the lacquer tree Rhus succedanea, was found to inhibit the activity of tyrosinase and to suppress melanin production in animal cells. The IC50 of HQ17(1) as a tyrosinase inhibitor was 37 microM versus 70 microM for hydroquinone (HQ), a known inhibitor of tyrosinase and melanogenesis. For the inhibition of melanin production in mouse B16 melanoma cells, the EC50 of HQ17(1) was 40 microM versus 124 microM for HQ. HQ17(1) induced much less oxidative stress than did HQ. The effectiveness in inhibiting melanin production could be mimicked by intermittent exposure of cells to HQ17(1). The potent inhibitory effects of HQ17(1) on tyrosinase activity and melanin production are likely due to its heptadecenyl chain, which facilitates retention of the compound in cell membrane compartments and may impede oxidation of the hydroquinone ring. As tyrosinase activity accounts for postharvest browning of botanical products and animal skin melanogenesis, HQ17(1) could be useful for the preservation of these products or as a skin-whitening cosmetic.
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Affiliation(s)
- Yun-Ru Chen
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University, Taipei, Taiwan, Republic of China
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16
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Roumy V, Fabre N, Portet B, Bourdy G, Acebey L, Vigor C, Valentin A, Moulis C. Four anti-protozoal and anti-bacterial compounds from Tapirira guianensis. PHYTOCHEMISTRY 2009; 70:305-311. [PMID: 19041989 DOI: 10.1016/j.phytochem.2008.10.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2007] [Revised: 10/01/2008] [Accepted: 10/06/2008] [Indexed: 05/27/2023]
Abstract
Tapirira guianensis is a common tree used in traditional medicine in French Guiana against several infectious diseases (malaria, leishmaniasis, bacteria, etc.). The bioassay-guided purification of CH(2)Cl(2) bark extract led to the isolation of four cyclic alkyl polyol derivatives: 4,6,2'-trihydroxy-6-[10'(Z)-heptadecenyl]-1-cyclohexen-2-one (1a), 1,4,6-trihydroxy-1,2'-epoxy-6-[10'(Z)-heptadecenyl]-2-cyclohexene (1b), 1,4,5,2'-tetrahydroxy-1-[10'(Z)-heptadecenyl]-2-cyclohexene (2), and 1,3,4,6-tetrahydroxy-1,2'-epoxy-6-[10'(Z)-heptadecenyl]-cyclohexane (3). The structures were established on the basis of 1D and 2D NMR analyses. The anti-leishmanial, anti-plasmodial, anti-bacterial (on Staphylococcus aureus, Staphylococcus epidermidis and Escherichia coli), and anti-fungal (on Candida albicans) activities of the extracts and of these original compounds were evaluated. Two showed medicinal interest supporting the traditional uses of the plant. The structures were established through spectral analyses of the isolates and their derivatives.
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Affiliation(s)
- Vincent Roumy
- Université de Toulouse, UMR 152 IRD-Université Paul Sabatier, Toulouse 3, Faculté des Sciences Pharmaceutiques, 31062 Toulouse cedex 9, France.
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17
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18
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Huang CP, Fang WH, Lin LI, Chiou RY, Kan LS, Chi NH, Chen YR, Lin TY, Lin SB. Anticancer activity of botanical alkyl hydroquinones attributed to topoisomerase II poisoning. Toxicol Appl Pharmacol 2008; 227:331-8. [DOI: 10.1016/j.taap.2007.11.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2007] [Revised: 11/12/2007] [Accepted: 11/14/2007] [Indexed: 10/22/2022]
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19
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Kapche GD, Laatsch H, Fotso S, Kouam SF, Wafo P, Ngadjui BT, Abegaz BM. Lanneanol: A new cytotoxic dihydroalkylcyclohexenol and phenolic compounds from Lannea nigritana (Sc. Ell.) Keay. BIOCHEM SYST ECOL 2007. [DOI: 10.1016/j.bse.2007.01.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Abstract
[reaction: see text] Some selective transformations of resorcinol-derived cyclohexadienone are reported. Efforts led to a structure reported to display anticancer properties. On the basis of the results, the structures for natural products reported to contain a 4,6-dihydroxy-4-alkyl-cyclohexenone nucleus are corrected.
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21
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Suffredini IB, Paciencia MLB, Varella AD, Younes RN. In vitro cytotoxic activity of Brazilian plant extracts against human lung, colon and CNS solid cancers and leukemia. Fitoterapia 2007; 78:223-6. [PMID: 17346903 DOI: 10.1016/j.fitote.2006.11.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2005] [Accepted: 11/24/2006] [Indexed: 11/19/2022]
Abstract
The cytotoxicity of extracts obtained from plants occurring in the Amazon and Atlantic rain forests against NCI-H460, KM-12, SF-268 and RPMI-8226 cancer cell lines was investigated. Expressive activity was observed in the extracts of Toulicia cf. pulvinata, Ampirrhox sp., Macoubea sprucei, Calophyllum brasiliense, Vismia guianensis, Caryocar microcarpum, Xylopia aromatica and Distictella magnoliifolia.
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Affiliation(s)
- Ivana B Suffredini
- Laboratório de Extração da Universidade Paulista - UNIP, São Paulo, SP, Brazil
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22
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Wu PL, Lin SB, Huang CP, Chiou RYY. Antioxidative and cytotoxic compounds extracted from the sap of Rhus succedanea. JOURNAL OF NATURAL PRODUCTS 2002; 65:1719-1721. [PMID: 12444713 DOI: 10.1021/np0201467] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Two new antioxidative and cytotoxic compounds, 10'(Z),13'(E),15'(E)-heptadecatrienylhydroquinone (1) and 10'(Z),13'(E)-heptadecadienylhydroquinone (2), as well as the known 10'(Z)-heptadecenylhydroquinone (3), were isolated from an EtOH extract of the sap of Rhus succedanea. The structures were elucidated by spectral analyses. These compounds showed antioxidative and cytotoxic activities against five cancer cell lines.
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Affiliation(s)
- Pei-Lin Wu
- Department of Chemistry, National Cheng Kung University, Tainan, Taiwan, Republic of China
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23
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Abstract
Gibbilimbols A-D (1-4) were synthesized in 32-49% yield over four steps from commercially available starting materials. A copper-catalyzed coupling of 4-methoxyphenylmagnesium bromide with various unsaturated alkyl bromides was the key step in assembling the (long-chain alkyl)phenol skeleton.
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Affiliation(s)
- James R Vyvyan
- Department of Chemistry, Western Washington University, Bellingham, Washington 98225-9150, USA.
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24
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Jiménez G, Hasegawa M, Rodríguez M, Estrada O, Méndez J, Castillo A, Gonzalez-Mujica F, Motta N, Vásquez J, Romero-Vecchione E. Biological screening of plants of the Venezuelan Amazons. JOURNAL OF ETHNOPHARMACOLOGY 2001; 77:77-83. [PMID: 11483381 DOI: 10.1016/s0378-8741(01)00271-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A total of 21 extracts derived from 17 different plant species collected in Venezuelan Amazons have been tested for the following biological activities: cardiovascular activity, brine shrimp lethality, and inhibitory effects on the hydrolysis of glucose-6-phosphate in intact and disrupted microsomes. Eight extracts diminished rat blood pressure with or without changes in heart rate. The fruit extract of Swartzia leptopetala and the leaf and twig extract of Connarus lambertii resulted in death of experimental animals. The majority of extracts (17 extracts) showed significant toxicity against Artemia salina. Concerning the hydrolysis of glucose-6-phosphate, better inhibitory effects were observed in intact microsomes than in disrupted ones for all the extracts, suggesting that these extracts intervene with variable potency in glucose-6-phosphate transport through the microsomal membrane.
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Affiliation(s)
- G Jiménez
- Laboratorio de Productos Naturales, Centro de Química Orgánica, Escuela de Química, Facultad de Ciencias, Universidad Central de Venezuela, Apartado Postal 47102, Caracas 1020A, Venezuela
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25
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Góngora L, Giner RM, Máñez S, del Carmen Recio M, Ríos JL. New prenylhydroquinone glycosides from Phagnalon rupestre. JOURNAL OF NATURAL PRODUCTS 2001; 64:1111-1113. [PMID: 11520242 DOI: 10.1021/np010166t] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Three new hydroquinone glycosides were isolated from the MeOH extract of the aerial parts of Phagnalon rupestre. Their structures were elucidated as 1-O-beta-glucopyranosyl-1,4-dihydroxy-2-(3',3'-dimethylallyl)benzene (1), 1-O-beta-glucopyranosyl-1,4-dihydroxy-2-(3'-hydroxymethyl-3'-methylallyl)benzene (2), and 1-O-(4' '-O-caffeoyl)-beta-glucopyranosyl-1,4-dihydroxy-2-(3',3'-dimethylallyl)benzene (3) by spectroscopic methods.
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Affiliation(s)
- L Góngora
- Departament de Farmacologia, Facultat de Farmàcia, Universitat de València, Avda. Vicent Andrés Estellés s/n, 46100-Burjassot, València, Spain
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26
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Correia SD, David JM, David JP, Chai HB, Pezzuto JM, Cordell GA. Alkyl phenols and derivatives from Tapirira obtusa. PHYTOCHEMISTRY 2001; 56:781-784. [PMID: 11314968 DOI: 10.1016/s0031-9422(00)00476-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
From the bark of Tapiria obtusa, six alkyl phenol derivatives were isolated: 1-hydroxy-3-[(Z)-7'-nonadecenyl]-benzene, 1-hydroxy-3-[(Z)-7'-heptadecenyl]-benzene, 1-hydroxy-3-[14'-phenyltetradecyl]-benzene, and 1-hydroxy-3-[16'-phenyltetradecyl]-benzene, and their possible biogenetic precursors, 1-(16'-phenyl-12'Z-hexadecenyl)-4-Z-cyclohexene-(1S*,3S*)-diol and (4S*,6S*)-dihydroxy-6-(14'Z-nonadecenyl)-2-cyclohexenone. The structures of these compounds were elucidated by chemical and spectroscopic analysis, (4S*,6S*)-Dihydroxy-6-(14'Z-nonadecenyl)-2-cyclohexenone showed cytotoxic activity.
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Affiliation(s)
- S D Correia
- College of Pharmacy, University of Illinois at Chicago, 60612, USA
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27
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Deng JZ, Starck SR, Hecht SM. bis-5-Alkylresorcinols from Panopsis rubescens that inhibit DNA polymerase beta. JOURNAL OF NATURAL PRODUCTS 1999; 62:477-480. [PMID: 10096862 DOI: 10.1021/np980522g] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Bioassay-guided fractionation of Panopsis rubescens, using an assay to detect DNA polymerase beta inhibition, led to the isolation of two new bis-5-alkylresorcinols (1 and 2), in addition to one known bis-5-alkylresorcinol (3). The structures of 1-3 were established as 1,3-dihydroxy-5-[14'-(3' ',5' '-dihydroxyphenyl)-cis-4'-tetradecenyl]benzene (1), 1, 3-dihydroxy-5-[14'-(3' ',5' '-dihydroxyphenyl)-cis-7'-tetradecenyl]benzene (2), and 1, 3-dihydroxy-5-[14'-(3' ',5' '-dihydroxyphenyl)tetradecenyl]benzene (3), respectively, by spectroscopic and chemical analyses. Compounds 1-3 exhibited potent inhibition of calf thymus DNA polymerase beta, with IC50 values of 7.5, 6.5, and 5.8 microM, respectively.
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Affiliation(s)
- J Z Deng
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22901, USA
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