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Yin Q, Chen G, Mu D, Yang Y, Hao J, Lin B, Zhou D, Hou Y, Li N. Natural anti-neuroinflammatory inhibitors in vitro and in vivo from Aglaia odorata. Bioorg Chem 2024; 147:107335. [PMID: 38583250 DOI: 10.1016/j.bioorg.2024.107335] [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: 03/04/2024] [Revised: 03/24/2024] [Accepted: 04/03/2024] [Indexed: 04/09/2024]
Abstract
Fifty compounds including seven undescribed (1, 13, 18-20, 30, 31) and forty-three known (2-12, 14-17, 21-29, 32-50) ones were isolated from the extract of the twigs and leaves of Aglaia odorata with anti-neuroinflammatory activities. Their structures were determined by a combination of spectral analysis and calculated spectra (ECD and NMR). Among them, compounds 13-25 were found to possess tertiary amide bonds, with compounds 16, 17, and 19-21 existing detectable cis/trans mixtures in 1H NMR spectrum measured in CDCl3. Specifically, the analysis of the cis-trans isomerization equilibrium of tertiary amides in compounds 19-24 was conducted using NMR spectroscopy and quantum chemical calculations. Bioactivity evaluation showed that the cyclopenta[b]benzofuran derivatives (2-6, 8, 10, 12) could inhibit nitric oxide production at the nanomolar concentration (IC50 values ranging from 2 to 100 nM) in lipopolysaccharide-induced BV-2 cells, which were 413-20670 times greater than that of the positive drug (minocycline, IC50 = 41.34 μM). The cyclopenta[bc]benzopyran derivatives (13-16), diterpenoids (30-35), lignan (40), and flavonoids (45, 47, 49, 50) also demonstrated significant inhibitory activities with IC50 values ranging from 1.74 to 38.44 μM. Furthermore, the in vivo anti-neuroinflammatory effect of rocaglaol (12) was evaluated via immunofluorescence, qRT-PCR, and western blot assays in the LPS-treated mice model. The results showed that rocaglaol (12) attenuated the activation of microglia and decreased the mRNA expression of iNOS, TNF-α, IL-1β, and IL-6 in the cortex and hippocampus of mice. The mechanistic study suggested that rocaglaol might inhibit the activation of the NF-κB signaling pathway to relieve the neuroinflammatory response.
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Affiliation(s)
- Qianqian Yin
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Gang Chen
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Danyang Mu
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang 110167, China
| | - Yuxin Yang
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang 110167, China
| | - Jinle Hao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Bin Lin
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Di Zhou
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yue Hou
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang 110167, China.
| | - Ning Li
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, China.
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2
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Phytochemistry and Biological Activities of Guarea Genus (Meliaceae). MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248758. [PMID: 36557891 PMCID: PMC9786185 DOI: 10.3390/molecules27248758] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/07/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022]
Abstract
Guarea is one of the largest genera of the American Meliaceae family, consisting of over 69 species which are widely distributed in Mexico, Argentina, and Africa and are used in traditional medicine for several diseases. Previous studies reported that the Guarea species produce secondary metabolites such as sesquiterpenoid, diterpenoid, triterpenoid, limonoid, steroid, and aromatic compounds. The preliminary chemical investigation commenced by isolating the limonoid compound, dihydrogedunin, in 1962; then, 240 compounds were obtained from the isolation and hydrodistillation process. Meanwhile, sesquiterpenoid is a significant compound with 52% of Guarea species. The extract and compounds were evaluated for their anti-inflammation, antimalarial, antiparasitic, antiprotozoal, antiviral, antimicrobial, insecticidal, antioxidant, phosphorylation inhibitor, and cytotoxic biological activities. The Guarea genus has also been reported as one of the sources of active compounds for medicinal chemistry. This review summarizes some descriptions regarding the types of Guarea species, especially ethnobotany and ethnopharmacology, such as the compounds isolated from the part of this genus, various isolation methods, and their bioactivities. The information can be used in further investigations to obtain more bioactive compounds and their reaction mechanisms.
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dos Santos IV, Borges RS, Silva GM, de Lima LR, Bastos RS, Ramos RS, Silva LB, da Silva CHTP, dos Santos CBR. Hierarchical Virtual Screening Based on Rocaglamide Derivatives to Discover New Potential Anti-Skin Cancer Agents. Front Mol Biosci 2022; 9:836572. [PMID: 35720115 PMCID: PMC9201829 DOI: 10.3389/fmolb.2022.836572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 01/26/2022] [Indexed: 12/04/2022] Open
Abstract
Skin Cancer (SC) is among the most common type of cancers worldwide. The search for SC therapeutics using molecular modeling strategies as well as considering natural plant-derived products seems to be a promising strategy. The phytochemical Rocaglamide A (Roc-A) and its derivatives rise as an interesting set of reference compounds due to their in vitro cytotoxic activity with SC cell lines. In view of this, we performed a hierarchical virtual screening study considering Roc-A and its derivatives, with the aim to find new chemical entities with potential activity against SC. For this, we selected 15 molecules (Roc-A and 14 derivatives) and initially used them in docking studies to predict their interactions with Checkpoint kinase 1 (Chk1) as a target for SC. This allowed us to compile and use them as a training set to build robust pharmacophore models, validated by Pearson’s correlation (p) values and hierarchical cluster analysis (HCA), subsequentially submitted to prospective virtual screening using the Molport® database. Outputted compounds were then selected considering their similarities to Roc-A, followed by analyses of predicted toxicity and pharmacokinetic properties as well as of consensus molecular docking using three software. 10 promising compounds were selected and analyzed in terms of their properties and structural features and, also, considering their previous reports in literature. In this way, the 10 promising virtual hits found in this work may represent potential anti-SC agents and further investigations concerning their biological tests shall be conducted.
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Affiliation(s)
- Igor V.F. dos Santos
- Modeling and Computational Chemistry Laboratory, Federal University of Amapá, Macapá, Brazil
- Graduate Program in Biotechnology and Biodiversity-Network BIONORTE, Federal University of Amapá, Macapá, Brazil
| | - Rosivaldo S. Borges
- Modeling and Computational Chemistry Laboratory, Federal University of Amapá, Macapá, Brazil
- Graduate Program in Medicinal Chemistry and Molecular Modeling, Federal University of Pará, Belém, Brazil
| | - Guilherme M. Silva
- Computational Laboratory of Pharmaceutical Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto - Universidade de São Paulo, Ribeirão Preto, Brazil
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto - Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Lúcio R. de Lima
- Modeling and Computational Chemistry Laboratory, Federal University of Amapá, Macapá, Brazil
- Graduate Program in Medicinal Chemistry and Molecular Modeling, Federal University of Pará, Belém, Brazil
| | - Ruan S. Bastos
- Modeling and Computational Chemistry Laboratory, Federal University of Amapá, Macapá, Brazil
- Graduate Program in Medicinal Chemistry and Molecular Modeling, Federal University of Pará, Belém, Brazil
| | - Ryan S. Ramos
- Modeling and Computational Chemistry Laboratory, Federal University of Amapá, Macapá, Brazil
- Graduate Program in Biotechnology and Biodiversity-Network BIONORTE, Federal University of Amapá, Macapá, Brazil
| | - Luciane B. Silva
- Modeling and Computational Chemistry Laboratory, Federal University of Amapá, Macapá, Brazil
- Graduate Program in Medicinal Chemistry and Molecular Modeling, Federal University of Pará, Belém, Brazil
| | - Carlos H. T. P. da Silva
- Computational Laboratory of Pharmaceutical Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto - Universidade de São Paulo, Ribeirão Preto, Brazil
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto - Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Cleydson B. R. dos Santos
- Modeling and Computational Chemistry Laboratory, Federal University of Amapá, Macapá, Brazil
- Graduate Program in Biotechnology and Biodiversity-Network BIONORTE, Federal University of Amapá, Macapá, Brazil
- Graduate Program in Medicinal Chemistry and Molecular Modeling, Federal University of Pará, Belém, Brazil
- *Correspondence: Cleydson B. R. dos Santos,
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Greger H. Comparative phytochemistry of flavaglines (= rocaglamides), a group of highly bioactive flavolignans from Aglaia species (Meliaceae). PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2022; 21:725-764. [PMID: 34104125 PMCID: PMC8176878 DOI: 10.1007/s11101-021-09761-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 05/17/2021] [Indexed: 05/07/2023]
Abstract
Flavaglines are formed by cycloaddition of a flavonoid nucleus with a cinnamic acid moiety representing a typical chemical character of the genus Aglaia of the family Meliaceae. Based on biosynthetic considerations 148 derivatives are grouped together into three skeletal types representing 77 cyclopenta[b]benzofurans, 61 cyclopenta[bc]benzopyrans, and 10 benzo[b]oxepines. Apart from different hydroxy, methoxy, and methylenedioxy groups of the aromatic rings, important structural variation is created by different substitutions and stereochemistries of the central cyclopentane ring. Putrescine-derived bisamides constitute important building blocks occurring as cyclic 2-aminopyrrolidines or in an open-chained form, and are involved in the formation of pyrimidinone flavaglines. Regarding the central role of cinnamic acid in the formation of the basic skeleton, rocagloic acid represents a biosynthetic precursor from which aglafoline- and rocaglamide-type cyclopentabenzofurans can be derived, while those of the rocaglaol-type are the result of decarboxylation. Broad-based comparison revealed characteristic substitution trends which contribute as chemical markers to natural delimitation and grouping of taxonomically problematic Aglaia species. A wide variety of biological activities ranges from insecticidal, antifungal, antiprotozoal, and anti-inflammatory properties, especially to pronounced anticancer and antiviral activities. The high insecticidal activity of flavaglines is comparable with that of the well-known natural insecticide azadirachtin. Comparative feeding experiments informed about structure-activity relationships and exhibited different substitutions of the cyclopentane ring essential for insecticidal activity. Parallel studies on the antiproliferative activity of flavaglines in various tumor cell lines revealed similar structural prerequisites that let expect corresponding molecular mechanisms. An important structural modification with very high cytotoxic potency was found in the benzofuran silvestrol characterized by an unusual dioxanyloxy subunit. It possessed comparable cytotoxicity to that of the natural anticancer compounds paclitaxel (Taxol®) and camptothecin without effecting normal cells. The primary effect was the inhibition of protein synthesis by binding to the translation initiation factor eIF4A, an ATP-dependent DEAD-box RNA helicase. Flavaglines were also shown to bind to prohibitins (PHB) responsible for regulation of important signaling pathways, and to inhibit the transcriptional factor HSF1 deeply involved in metabolic programming, survival, and proliferation of cancer cells. Flavaglines were shown to be not only promising anticancer agents but gained now also high expectations as agents against emerging RNA viruses like SARS-CoV-2. Targeting the helicase eIF4A with flavaglines was recently described as pan-viral strategy for minimizing the impact of future RNA virus pandemics.
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Affiliation(s)
- Harald Greger
- Chemodiversity Research Group, Faculty of Life Sciences, University of Vienna, Rennweg 14, 1030 Wien, Austria
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Kamlar M, Henriksson E, Císařová I, Malo M, Sundén H. Synthesis of cis-Oriented Vicinal Diphenylethylenes through a Lewis Acid-Promoted Annulation of Oxotriphenylhexanoates. J Org Chem 2021; 86:8660-8671. [PMID: 34138578 PMCID: PMC8279482 DOI: 10.1021/acs.joc.1c00445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study explores the synthesis of cyclic cis-vicinal phenyl ethylenes from oxotriphenylhexanoates. The reaction is a BBr3-promoted cyclization of 1,6-ketoesters (1) to five-membered diketo compounds (2). The synthesis is interesting as it constitutes one of the few examples of modular stereoselective synthesis of structures with a cis-oriented vicinal diphenylethylene. The core structure of 2 can be smoothly derivatized, which makes it a promising synthetic building block for further stereoselective synthetic applications.
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Affiliation(s)
- Martin Kamlar
- Chalmers University of Technology, Department of Chemistry and Chemical Engineering, Kemivägen 10, 412 96 Gothenburg, Sweden.,Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Elin Henriksson
- Chalmers University of Technology, Department of Chemistry and Chemical Engineering, Kemivägen 10, 412 96 Gothenburg, Sweden
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Marcus Malo
- University of Gothenburg, Department of Chemistry and Molecular Biology, Kemivägen 10, SE-412 96 Gothenburg, Sweden
| | - Henrik Sundén
- Chalmers University of Technology, Department of Chemistry and Chemical Engineering, Kemivägen 10, 412 96 Gothenburg, Sweden.,University of Gothenburg, Department of Chemistry and Molecular Biology, Kemivägen 10, SE-412 96 Gothenburg, Sweden
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Burgers LD, Fürst R. Natural products as drugs and tools for influencing core processes of eukaryotic mRNA translation. Pharmacol Res 2021; 170:105535. [PMID: 34058326 DOI: 10.1016/j.phrs.2021.105535] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/02/2021] [Accepted: 03/02/2021] [Indexed: 12/19/2022]
Abstract
Eukaryotic protein synthesis is the highly conserved, complex mechanism of translating genetic information into proteins. Although this process is essential for cellular homoeostasis, dysregulations are associated with cellular malfunctions and diseases including cancer and diabetes. In the challenging and ongoing search for adequate treatment possibilities, natural products represent excellent research tools and drug leads for new interactions with the translational machinery and for influencing mRNA translation. In this review, bacterial-, marine- and plant-derived natural compounds that interact with different steps of mRNA translation, comprising ribosomal assembly, translation initiation and elongation, are highlighted. Thereby, the exact binding and interacting partners are unveiled in order to accurately understand the mode of action of each natural product. The pharmacological relevance of these compounds is furthermore assessed by evaluating the observed biological activities in the light of translational inhibition and by enlightening potential obstacles and undesired side-effects, e.g. in clinical trials. As many of the natural products presented here possess the potential to serve as drug leads for synthetic derivatives, structural motifs, which are indispensable for both mode of action and biological activities, are discussed. Evaluating the natural products emphasises the strong diversity of their points of attack. Especially the fact that selected binding partners can be set in direct relation to different diseases emphasises the indispensability of natural products in the field of drug development. Discovery of new, unique and unusual interacting partners again renders them promising tools for future research in the field of eukaryotic mRNA translation.
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Affiliation(s)
- Luisa D Burgers
- Institute of Pharmaceutical Biology, Faculty of Biochemistry, Chemistry and Pharmacy, Goethe University, Frankfurt, Germany
| | - Robert Fürst
- Institute of Pharmaceutical Biology, Faculty of Biochemistry, Chemistry and Pharmacy, Goethe University, Frankfurt, Germany; LOEWE Center for Translational Biodiversity Genomics (LOEWE-TBG), Frankfurt, Germany
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7
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Harneti D, Supratman U. Phytochemistry and biological activities of Aglaia species. PHYTOCHEMISTRY 2021; 181:112540. [PMID: 33130371 DOI: 10.1016/j.phytochem.2020.112540] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 10/08/2020] [Accepted: 10/08/2020] [Indexed: 05/13/2023]
Abstract
Aglaia is the largest genus in the Meliaceae family (also known as Mahagoni in Indonesia), consisting of over 150 species, of which 65 are indigenous to Indonesia. These species spread through the tropical regions, especially Southeast Asia as well as the Nothern part of Australia, and have been used in traditional medicine for the treatment of several diseases. However, preliminary chemical researches commenced in 1965, where dammarane-type triterpenoids, aglaiol was isolated, and the structure was determined by chemical reaction and spectroscopic methods. Several studies have been carried out on the stembark, bark, leaves, seeds and leaves in the last fifty five years, and about 291 metabolites have been isolated from the sesquiterpenoid, diterpenoid, triterpenoid, limonoid, steroid, lignan, and alkaloid groups, as well as flavagline, which known to be the largest. This specifically amounts to 34% of Aglaia species, reported to show cytotoxic and insecticidal potentials, and also the tendency for use as chemical markers for this species. The extracts and compounds obtained from Aglaia species are evaluated for potential biological activities, including cytotoxicity, insecticidal, anti-inflammatory, antifungal, molluscicidal, antituberculosis and antiviral effects. In addition, flavagline (rocaglamide) derivatives have been confirmed to exhibit exceptional cytotoxicity, and are, thus, considered lead compounds for further development. Therefore, the results support the concept of utilizing Aglaia species as a potential source for the production of biologically active compounds.
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Affiliation(s)
- Desi Harneti
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, 45363, Sumedang, West Java, Indonesia
| | - Unang Supratman
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, 45363, Sumedang, West Java, Indonesia; Central Laboratory, Universitas Padjadjaran, Jatinangor, 45363, Sumedang, West Java, Indonesia.
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8
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Dictamnine-induced hepatotoxicity in mice: the role of metabolic activation of furan. Toxicol Appl Pharmacol 2019; 364:68-76. [DOI: 10.1016/j.taap.2018.12.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 12/16/2018] [Accepted: 12/18/2018] [Indexed: 01/27/2023]
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9
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Harneti D, Supriadin A, Maharani R, Nurlelasari N, Mayanti T, Tatang Hidayat A, Anwar R, Supratman U, Awang K, Shiono Y. Triterpenoids from the Bark of Aglaia glabrata and their In vitro Effects on P-388 Murine Leukemia Cells. ACTA ACUST UNITED AC 2019. [DOI: 10.13005/ojc/350114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Four dammarane-type triterpenoids, dammardienon (1), aglaiabbreviatin E (2), dammar-20,25-dien-3b,24-diol (3) and dammar-24-en-3b,20-diol (4) were isolated from methanolic extract of the bark of Aglaia glabrata. The structures of all triterpenoids were elucidated by 1D-, 2D-NMR, and comparison with previously reported data. All triterpenoids were applied into in vitro bioassay against P-388 murine leukemia cell. Dammar-24-en-3b,20-diol (4) has cytotoxic activity with IC50 value of 9.45 mM towards P-388 murine leukemia cell lines.
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Affiliation(s)
- Desi Harneti
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Sumedang, Indonesia
| | - Asep Supriadin
- Department of Chemistry, Faculty of Science and Technology, Sunan Gunung Djati Islamic University, Bandung 45262, Indonesia
| | - Rani Maharani
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Sumedang, Indonesia
| | - Nurlelasari Nurlelasari
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Sumedang, Indonesia
| | - Tri Mayanti
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Sumedang, Indonesia
| | - Ace Tatang Hidayat
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Sumedang, Indonesia
| | - Risyandi Anwar
- Department of Pediatric Dentistry, Faculty of Dentistry, Muhammadiyah University, Semarang 50273, Central Java, Indonesia
| | - Unang Supratman
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Sumedang, Indonesia
| | - Khalijah Awang
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 59100, Malaysia
| | - Yoshihito Shiono
- Department of Food, Life, and Environmental Science, Faculty of Agriculture,Yamagata University, Tsuruoka, Yamagata 997-8555, Japan
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Heravi MM, Ghalavand N, Ghanbarian M, Mohammadkhani L. Applications of Mitsunobu Reaction in total synthesis of natural products. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4464] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Majid M. Heravi
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
| | - Nastaran Ghalavand
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
| | - Manizheh Ghanbarian
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
| | - Leyla Mohammadkhani
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
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Hidayat AT, Farabi K, Harneti D, Maharani R, Darwati, Nurlelasari, Mayanti T, Setiawan AS, Supratman U, Shiono Y. Cytotoxicity and Structure Activity Relationship of Dammarane-Type Triterpenoids from the Bark of Aglaia elliptica against P-388 Murine Leukemia Cells. ACTA ACUST UNITED AC 2017. [DOI: 10.20307/nps.2017.23.4.291] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ace Tatang Hidayat
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
- Central Laboratory of Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Kindi Farabi
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Desi Harneti
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Rani Maharani
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
- Central Laboratory of Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Darwati
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Nurlelasari
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Tri Mayanti
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Arlette Suzy Setiawan
- Department of Pediatric Dentistry, Faculty of Dentistry, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Unang Supratman
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
- Central Laboratory of Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Yoshihito Shiono
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Tsuruoka, Yamagata 997-8555, Japan
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Yurttaş L, Abu Mohsen U, Ozkan Y, Cobanoglu S, Levent S, Kaplancikli ZA. Synthesis and biological evaluation of some dibenzofuran-piperazine derivatives. J Enzyme Inhib Med Chem 2015; 31:1177-83. [PMID: 26581445 DOI: 10.3109/14756366.2015.1108971] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In the present paper, a novel series of dibenzofuran-piperazine derivatives were synthesized via the treatment of N-(2-methoxy-3-dibenzofuranyl)-2-chloroacetamide with substituted piperazine derivatives. The chemical structures of the compounds were elucidated by (1)H NMR, (13)C NMR, mass spectral data; elemental analysis and HPLC analysis. Each derivative was evaluated for antiplatelet activity and anticholinesterase activity. Compound 2 m with 2-furoyl moiety exhibited high percentage inhibition as much as standard drug aspirin on arachidonic acid (AA)-induced platelet aggregation. None of the compounds presented significant inhibitor effect on collagen-induced platelet aggregation. Furthermore, the anticholinesterase activity of the compounds was determined and they did not show promising inhibitor activity compared with standard drug donepezil.
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Affiliation(s)
- Leyla Yurttaş
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Anadolu University , Eskişehir , Turkey
| | - Usama Abu Mohsen
- b Department of Pharmaceutical Chemistry , Faculty of Pharmacy, Al-Azhar University , Gaza , Palestine , and
| | - Yeşim Ozkan
- c Department of Biochemistry , Faculty of Pharmacy, Gazi University , Ankara , Turkey
| | - Simla Cobanoglu
- c Department of Biochemistry , Faculty of Pharmacy, Gazi University , Ankara , Turkey
| | - Serkan Levent
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Anadolu University , Eskişehir , Turkey
| | - Zafer Asım Kaplancikli
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Anadolu University , Eskişehir , Turkey
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Bioactive benzofuran derivatives: An insight on lead developments, radioligands and advances of the last decade. Eur J Med Chem 2015; 97:356-76. [PMID: 25703339 DOI: 10.1016/j.ejmech.2015.01.021] [Citation(s) in RCA: 169] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 12/19/2014] [Accepted: 01/10/2015] [Indexed: 02/08/2023]
Abstract
Benzofuran core is a highly versatile, presents in many important natural products and natural drugs. Many benzofuran containing synthetic drugs and clinical candidates have been derived from natural products. The present review will provide an insight on lead design-developments of the decade, clinical candidates and PET tracer radio-ligands containing benzofuran core along with brief target biology. Brief of the all approved drugs containing benzofuran core also have been enclosed. Main therapeutic areas covered are Cancer, Neurological disorders including anti-psychotic agent and diabetes.
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14
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Liou MJ, Teng CM, Wu TS. Constituents fromRubia UstulataDiels andR. YunnanensisDiels and Their Antiplatelet Aggregation Activity. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200200146] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Cencic R, Pelletier J. Throwing a monkey wrench in the motor: targeting DExH/D box proteins with small molecule inhibitors. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2013; 1829:894-903. [PMID: 23385390 DOI: 10.1016/j.bbagrm.2013.01.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 01/21/2013] [Accepted: 01/24/2013] [Indexed: 01/04/2023]
Abstract
DExH/D box proteins are molecular motors that utilize the energy derived from NTP hydrolysis to perform work - from helicases that remodel RNA to RNPases that alter RNA-protein complexes. Members of this class of proteins are uniquely placed along the RNA information highway to regulate the flow of genetic information. They have been implicated in a number of nodal points encompassing nuclear, cytoplasmic, and organellar RNA-based processes. The identification and characterization of three unique natural products that selectively inhibit the activity of eukaryotic initiation factor (eIF)4A (DDX2) has provided proof-of-principle that the activity of DExH/D box family members can be selectively targeted. Extending these achievements to other DExH/D box proteins is an important future challenge for drugging this family of proteins. This article is part of a Special Issue entitled: The Biology of RNA helicases - Modulation for life.
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Affiliation(s)
- Regina Cencic
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada.
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16
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Astelbauer F, Gruber M, Brem B, Greger H, Obwaller A, Wernsdorfer G, Congpuong K, Wernsdorfer WH, Walochnik J. Activity of selected phytochemicals against Plasmodium falciparum. Acta Trop 2012; 123:96-100. [PMID: 22537982 DOI: 10.1016/j.actatropica.2012.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 03/31/2012] [Accepted: 04/03/2012] [Indexed: 01/03/2023]
Abstract
According to the WHO, in 2008, there were 247 million reported cases of malaria and nearly one million deaths from the disease. Parasite resistance against first-line drugs, including artemisinin and mefloquine, is increasing. In this study the plant-derived compounds aglafolin, rocaglamid, kokusaginine, arborine, arborinine and tuberostemonine were investigated for their anti-plasmodial activity in vitro. Fresh Plasmodium falciparum isolates were taken from patients in the area of Mae Sot, north-western Thailand in 2008 and the inhibition of schizont maturation was determined for the respective compounds. With inhibitory concentrations effecting 50%, 90% and 99% inhibition (IC(50), IC(90) and IC(99)) of 60.95 nM, 854.41 nM and 7351.49 nM, respectively, rocaglamid was the most active of the substances, closely followed by aglafoline with 53.49 nM, 864.55 nM and 8354.20 nM. The activity was significantly below that of artemisinin, but moderately higher than that of quinine. Arborine, arborinine, tuberostemonine and kokusaginine showed only marginal activity against P. falciparum characterized by IC(50) and IC(99) values higher than 350 nM and 180 μM, respectively, and regressions with relatively shallow slopes S>14.38. Analogues of rocaglamid and aglafoline merit further exploration of their anti-plasmodial activity.
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Affiliation(s)
- Florian Astelbauer
- Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, Austria
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17
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Abstract
Protein synthesis is a complex, tightly regulated process in eukaryotic cells and its deregulation is a hallmark of many cancers. Translational control occurs primarily at the rate-limiting initiation step, where ribosomal subunits are recruited to template mRNAs through the concerted action of several eukaryotic initiation factors (eIFs). One factor that interacts with both the mRNA and ribosomes, and appears limiting for translation is eIF4F, a complex composed of the cap-binding protein, eIF4E; the scaffold protein, eIF4G; and the ATP-dependent DEAD-box helicase, eIF4A. eIF4E appears to play an important role in tumor initiation and progression since its overexpression can cooperate with oncogenes to accelerate transformation in cell lines and animal models, and its levels are elevated in many human cancers. This, therefore, represents a vulnerability for transformed cells, and presents an opportunity for therapeutic intervention. In this review, we discuss approaches for targeting eIF4F activity.
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18
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Cencic R, Galicia-Vázquez G, Pelletier J. Inhibitors of translation targeting eukaryotic translation initiation factor 4A. Methods Enzymol 2012; 511:437-61. [PMID: 22713332 DOI: 10.1016/b978-0-12-396546-2.00020-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The RNA helicases eIF4AI and eIF4AII play key roles in recruiting ribosomes to mRNA templates during eukaryotic translation initiation. Small molecule inhibitors of eIF4AI and eIF4AII have been useful for chemically dissecting their role in translation in vitro and in vivo. Here, we describe a screen performed on a small focused library of kinase inhibitors to identify a novel helicase inhibitor. We describe assays that have been critical for characterizing novel RNA helicase inhibitors.
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Affiliation(s)
- Regina Cencic
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
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Liu J, Yang SP, Ni G, Gu YC, Yue JM. Triterpenoids from Aglaia odorata var. microphyllina. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2012; 14:929-939. [PMID: 23046464 DOI: 10.1080/10286020.2012.730698] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Five new apotirucallane-type triterpenoids (1-5), named agladorals A-E, and 28 known compounds (20 triterpenoids and 8 rocaglamides) were isolated from the twigs of Aglaia odorata var. microphyllina. Their structures were elucidated by spectroscopic analysis.
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Affiliation(s)
- Jia Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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20
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Phongmaykin J, Kumamoto T, Ishikawa T, Saifah E, Suttisri R. Biologically active constituents of Aglaia erythrosperma. Nat Prod Res 2011; 25:1621-8. [PMID: 22011221 DOI: 10.1080/14786419.2010.508038] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
From the fruits and leaves of Aglaia erythrosperma (Meliaceae), 10 chemical constituents were isolated and identified, i.e. the dammarane triterpenoids cabraleadiol (1), cabraleahydroxylactone (2), ethyl eichlerianoate (3), eichlerialactone (4), aglinin A (5), cabralealactone (6), the aglaialactone 5,6-desmethylenedioxy-5-methoxy-aglalactone (7), the flavagline 4'-demethoxy-3',4'-methylenedioxy-methyl rocaglate (8) and two coumarins: scoparone and scopoletin. Flavagline 8 exhibited antimalarial activity with an IC(50) value of 7.30 µg mL(-1) and was strongly cytotoxic against small cell lung cancer (NCI-H187), epidermoid carcinoma (KB) and breast cancer (BC) cell lines, with IC(50) values of 2.17, 2.10 and 0.11 µg mL(-1), respectively. Aglinin A (5) displayed moderate cytotoxicity against all the three cancer cell lines, whereas ethyl eichlerianoate (3), cabralealactone (6) and the aglaialactone 7 were exclusively cytotoxic to NCI-H187 cell line. Cabraleahydroxylactone (2) showed antiviral activity against herpes simplex virus type-1 with an IC(50) value of 3.20 µg mL(-1), in comparison with the standard acyclovir (IC(50) = 1.90 µg mL(-1)). When tested for antimycobacterial activity against Mycobacterium tuberculosis H(37)Ra, compounds 1-4 and 6-8 displayed minimum inhibitory concentration in the range of 25-50 µg mL(-1).
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Affiliation(s)
- Jarinporn Phongmaykin
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
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Cai XH, Xie B, Guo H. Progress in the total synthesis of rocaglamide. ISRN ORGANIC CHEMISTRY 2011; 2011:239817. [PMID: 24052818 PMCID: PMC3767207 DOI: 10.5402/2011/239817] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2011] [Accepted: 02/13/2011] [Indexed: 11/23/2022]
Abstract
The first cyclopenta[b]benzofuran derivative, rocaglamide, from Aglaia elliptifolia, was found to exhibit considerable insecticidal activities and excellent potential as a therapeutic agent candidate in cancer chemotherapy; the genus Aglaia has been subjected to further investigation. Both the structural complexity of rocaglamide and its significant activity make it an attractive synthetic target. Stereoselective synthesis of the dense substitution pattern of these targets is a formidable synthetic challenge: the molecules bear five contiguous stereocenters and cis aryl groups on adjacent carbons. In past years of effort, only a handful of completed total syntheses have been reported, evidence of the difficulties associated with the synthesis of rocaglate natural products. The advance on total synthesis of rocaglamide was mainly reviewed from intramolecular cyclization and biomimetic cycloaddition approach.
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Affiliation(s)
- Xiao-hua Cai
- College of Chemistry and Environmental Science, Guizhou University for Nationalites, Guiyang 550025, China
| | - Bing Xie
- College of Chemistry and Environmental Science, Guizhou University for Nationalites, Guiyang 550025, China
| | - Hui Guo
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
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22
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Astelbauer F, Obwaller A, Raninger A, Brem B, Greger H, Duchêne M, Wernsdorfer W, Walochnik J. Anti-leishmanial activity of plant-derived acridones, flavaglines, and sulfur-containing amides. Vector Borne Zoonotic Dis 2011; 11:793-8. [PMID: 21417924 DOI: 10.1089/vbz.2010.0087] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Visceral and cutaneous leishmaniases are an important public health problem in endemic geographic regions in 88 countries worldwide, with around 12 million infected people. Treatment options are limited due to toxicity and teratogenicity of the available drugs, response problems in HIV/Leishmania co-infections, and upcoming resistances. In this study, we investigated the anti-leishmanial activity of 13 plant-derived compounds in vitro aiming to find new drug candidates. Toxicity of the compounds was evaluated in human primary hepatocytes, and hemolytic activity was examined in freshly isolated erythrocytes. Two acridones, 5-hydroxynoracronycine and yukocitrine, two flavaglines, aglafoline and rocaglamide, and the sulfur-containing amide methyldambullin showed promising anti-leishmanial activities with 50% effective concentrations (EC50s) of 34.84, 29.76, 7.45, 16.45, and 6.29 μM, respectively. Hepatotoxic activities of 5-hydroxynoracronycine, yukocitrine, and methyldambullin were significantly lower compared to miltefosine and lower or equal compared to artesunate, whereas the ones of rocaglamide and aglafoline were slightly higher compared to miltefosine and significantly higher compared to artesunate. None of the compounds showed hemolytic activity.
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Affiliation(s)
- Florian Astelbauer
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
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23
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Thuaud F, Bernard Y, Türkeri G, Dirr R, Aubert G, Cresteil T, Baguet A, Tomasetto C, Svitkin Y, Sonenberg N, Nebigil CG, Désaubry L. Synthetic analogue of rocaglaol displays a potent and selective cytotoxicity in cancer cells: involvement of apoptosis inducing factor and caspase-12. J Med Chem 2010; 52:5176-87. [PMID: 19655762 DOI: 10.1021/jm900365v] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Flavaglines constitute a family of natural anticancer compounds. We present here 3 (FL3), the first synthetic flavagline that inhibits cell proliferation and viability (IC(50) approximately 1 nM) at lower doses than did the parent compound, racemic rocaglaol. Compound 3 enhanced doxorubicin cytotoxicity in HepG2 cells and retained its potency against adriamycin-resistant cell lines without inducing cardiomyocyte toxicity. Compound 3 induced apoptosis of HL60 and Hela cells by triggering the translocation of Apoptosis Inducing Factor (AIF) and caspase-12 to the nucleus. A fluorescent conjugate of 3 accumulated in endoplasmic reticulum (ER), suggesting that flavaglines bind to their target in the ER, where it triggers a cascade of events that leads to the translocation of AIF and caspase-12 to the nucleus and probably inhibition of eIF4A. Our studies highlight structural features critical to their antineoplastic potential and suggest that these compounds would retain their activity in cells refractory to caspase activation.
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Affiliation(s)
- Frédéric Thuaud
- Therapeutic Innovation Laboratory, UMR7200, CNRS/Universite de Strasbourg, Illkirch, France
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24
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Lucas DM, Still PC, Pérez LB, Grever MR, Kinghorn AD. Potential of plant-derived natural products in the treatment of leukemia and lymphoma. Curr Drug Targets 2010; 11:812-22. [PMID: 20370646 PMCID: PMC2892601 DOI: 10.2174/138945010791320809] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Accepted: 01/20/2010] [Indexed: 12/13/2022]
Abstract
Hematologic malignancies account for a substantial percentage of cancers worldwide, and the heterogeneity and biological characteristics of leukemias and lymphomas present unique therapeutic challenges. Although treatment options exist for most of these diseases, many types remain incurable and the emergence of drug resistance is pervasive. Thus, novel treatment approaches are essential to improve outcome. Nearly half of the agents used in cancer therapy today are either natural products or derivatives of natural products. The enormous chemical diversity in nature, coupled with millennia of biological selection, has generated a vast and underexplored reservoir of unique chemical structures with biologic activity. This review will describe the investigation and application of natural products derived from higher plants in the treatment of leukemia and lymphoma and the rationale behind these efforts. In addition to the approved vinca alkaloids and the epipodophyllotoxin derivatives, a number of other plant compounds have shown promise in clinical trials and in preclinical investigations. In particular, we will focus on the discovery and biological evaluation of the plant-derived agent silvestrol, which shows potential for additional development as a new therapeutic agent for B-cell malignancies including chronic lymphocytic leukemia.
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Affiliation(s)
- David M Lucas
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, 410 W. 12th Avenue, Columbus, OH 43210, USA.
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25
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Ahmed F, Toume K, Sadhu SK, Ohtsuki T, Arai MA, Ishibashi M. Constituents of Amoora cucullata with TRAIL resistance-overcoming activity. Org Biomol Chem 2010; 8:3696-703. [PMID: 20571616 DOI: 10.1039/c004927a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In search of bioactive natural products for overcoming TRAIL resistance from natural resources, we previously reported a number of active compounds. Bioassay-guided fractionation of mangrove, Amoora cucullata, collected from Sundarbans Mangrove Forest, Bangladesh, led to the isolation of four new compounds (1-4), along with seven known compounds (5-11). Of the isolates, compounds 1, 5, 8, and 9 showed TRAIL resistance-overcoming activity, among which 8 showed the most potent activity and enhanced TRAIL-induced apoptosis in TRAIL-resistant human gastric adenocarcinoma (AGS) cells through the activation of caspase-3/7, enhancing the expression of DR4 and DR5 mRNA in AGS cells. Cell death caused by the combined treatment of 8 and TRAIL was inhibited by human recombinant DR5/Fc and DR4/Fc chimera proteins, indicating that 8 sensitizes TRAIL-resistant AGS cells to TRAIL through the induction of DR4 and DR5.
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Affiliation(s)
- Firoj Ahmed
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-33 Yoyoi-cho, Inage-ku, Chiba 263-8522, Japan
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26
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The novel plant-derived agent silvestrol has B-cell selective activity in chronic lymphocytic leukemia and acute lymphoblastic leukemia in vitro and in vivo. Blood 2009; 113:4656-66. [PMID: 19190247 DOI: 10.1182/blood-2008-09-175430] [Citation(s) in RCA: 140] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Therapeutic options for advanced B-cell acute lymphoblastic leukemia (ALL) and chronic lymphocytic leukemia (CLL) are limited. Available treatments can also deplete T lymphocytes, leaving patients at risk of life-threatening infections. In the National Cancer Institute cell line screen, the structurally unique natural product silvestrol produces an unusual pattern of cytotoxicity that suggests activity in leukemia and selectivity for B cells. We investigated silvestrol efficacy using primary human B-leukemia cells, established B-leukemia cell lines, and animal models. In CLL cells, silvestrol LC(50) (concentration lethal to 50%) is 6.9 nM at 72 hours. At this concentration, there is no difference in sensitivity of cells from patients with or without the del(17p13.1) abnormality. In isolated cells and whole blood, silvestrol is more cytotoxic toward B cells than T cells. Silvestrol causes early reduction in Mcl-1 expression due to translational inhibition with subsequent mitochondrial damage, as evidenced by reactive oxygen species generation and membrane depolarization. In vivo, silvestrol causes significant B-cell reduction in Emu-Tcl-1 transgenic mice and significantly extends survival of 697 xenograft severe combined immunodeficient (SCID) mice without discernible toxicity. These data indicate silvestrol has efficacy against B cells in vitro and in vivo and identify translational inhibition as a potential therapeutic target in B-cell leukemias.
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Adams TE, El Sous M, Hawkins BC, Hirner S, Holloway G, Khoo ML, Owen DJ, Savage GP, Scammells PJ, Rizzacasa MA. Total Synthesis of the Potent Anticancer Aglaia Metabolites (−)-Silvestrol and (−)-Episilvestrol and the Active Analogue (−)-4′-Desmethoxyepisilvestrol. J Am Chem Soc 2009; 131:1607-16. [DOI: 10.1021/ja808402e] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tim E. Adams
- CSIRO Molecular and Health Technologies, Bayview Avenue, Victoria 3168, Australia, School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia, and Department of Medicinal Chemistry, Victorian College of Pharmacy, Monash University, 381 Royal Parade, Melbourne, Victoria 3052, Australia
| | - Mariana El Sous
- CSIRO Molecular and Health Technologies, Bayview Avenue, Victoria 3168, Australia, School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia, and Department of Medicinal Chemistry, Victorian College of Pharmacy, Monash University, 381 Royal Parade, Melbourne, Victoria 3052, Australia
| | - Bill C. Hawkins
- CSIRO Molecular and Health Technologies, Bayview Avenue, Victoria 3168, Australia, School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia, and Department of Medicinal Chemistry, Victorian College of Pharmacy, Monash University, 381 Royal Parade, Melbourne, Victoria 3052, Australia
| | - Sebastian Hirner
- CSIRO Molecular and Health Technologies, Bayview Avenue, Victoria 3168, Australia, School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia, and Department of Medicinal Chemistry, Victorian College of Pharmacy, Monash University, 381 Royal Parade, Melbourne, Victoria 3052, Australia
| | - Georgina Holloway
- CSIRO Molecular and Health Technologies, Bayview Avenue, Victoria 3168, Australia, School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia, and Department of Medicinal Chemistry, Victorian College of Pharmacy, Monash University, 381 Royal Parade, Melbourne, Victoria 3052, Australia
| | - Mui Ling Khoo
- CSIRO Molecular and Health Technologies, Bayview Avenue, Victoria 3168, Australia, School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia, and Department of Medicinal Chemistry, Victorian College of Pharmacy, Monash University, 381 Royal Parade, Melbourne, Victoria 3052, Australia
| | - David J. Owen
- CSIRO Molecular and Health Technologies, Bayview Avenue, Victoria 3168, Australia, School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia, and Department of Medicinal Chemistry, Victorian College of Pharmacy, Monash University, 381 Royal Parade, Melbourne, Victoria 3052, Australia
| | - G. Paul Savage
- CSIRO Molecular and Health Technologies, Bayview Avenue, Victoria 3168, Australia, School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia, and Department of Medicinal Chemistry, Victorian College of Pharmacy, Monash University, 381 Royal Parade, Melbourne, Victoria 3052, Australia
| | - Peter J. Scammells
- CSIRO Molecular and Health Technologies, Bayview Avenue, Victoria 3168, Australia, School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia, and Department of Medicinal Chemistry, Victorian College of Pharmacy, Monash University, 381 Royal Parade, Melbourne, Victoria 3052, Australia
| | - Mark A. Rizzacasa
- CSIRO Molecular and Health Technologies, Bayview Avenue, Victoria 3168, Australia, School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia, and Department of Medicinal Chemistry, Victorian College of Pharmacy, Monash University, 381 Royal Parade, Melbourne, Victoria 3052, Australia
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Mishra PM, Sree A. Chemical investigation ofFinlaysonia obovata: part I – a rare triterpene acid showing antibacterial activity against fish pathogens. Nat Prod Res 2008; 22:801-7. [DOI: 10.1080/14786410701640403] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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29
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Li H, Fu B, Wang MA, Li N, Liu WJ, Xie ZQ, Ma YQ, Qin Z. Total Synthesis and Biological Activity of (±)-Rocaglamide and Its 2,3-Di-epi Analogue. European J Org Chem 2008. [DOI: 10.1002/ejoc.200700905] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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30
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El Sous M, Khoo M, Holloway G, Owen D, Scammells P, Rizzacasa M. Total Synthesis of (−)-Episilvestrol and (−)-Silvestrol. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200702700] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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31
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El Sous M, Khoo ML, Holloway G, Owen D, Scammells PJ, Rizzacasa MA. Total Synthesis of (−)-Episilvestrol and (−)-Silvestrol. Angew Chem Int Ed Engl 2007; 46:7835-8. [PMID: 17823902 DOI: 10.1002/anie.200702700] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mariana El Sous
- School of Chemistry, Bio21 Institute, The University of Melbourne, Melbourne, Victoria 3010, Australia
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32
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Sous ME, Rizzacasa MA. Biomimetic synthesis of the novel 1,4-dioxanyloxy fragment of silvestrol and episilvestrol. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2004.11.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Hausott B, Greger H, Marian B. Flavaglines: a group of efficient growth inhibitors block cell cycle progression and induce apoptosis in colorectal cancer cells. Int J Cancer 2004; 109:933-40. [PMID: 15027128 DOI: 10.1002/ijc.20033] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Flavaglines are flavonol-cinnamate-derived cyclopenta[b]benzofurans, so far reported only for the genus Aglaia of the plant family Meliaceae. They represent a group of highly bioactive metabolites already known for their strong antileukemic activities. To assess their suitability as chemotherapeutic drugs in colorectal cancer, their cytostatic effects and the underlying mechanisms of action were analyzed in colorectal tumor cell lines. Aglaiastatin was the most active flavagline, inhibiting growth and inducing apoptosis at nanomolar concentrations in SW480 and HT29/HI1 carcinoma cells, while the premalignant adenoma cell lines VACO235 and LT97 as well as the normal intestinal epithelial cell line IEC18 were 1,000 times less sensitive (IC50>10 microM). In SW480 cells, aglaiastatin caused cell cycle block in early mitosis, demonstrated by a shift of cell cycle distribution 24 and 48 hr after addition of aglaiastatin and by an increased content of cyclin B after 6 hr together with a decreased level of cyclin A as early as 2 hr after exposure. In addition, induction of apoptosis could be shown by the characteristic morphology of apoptotic nuclei, loss of MMP and downmodulation of bcl(xl). Strong activation of p38 was observed after 2 hr of exposure, indicating that apoptosis may be induced via a p38-mediated stress pathway.
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Affiliation(s)
- Barbara Hausott
- Institute of Cancer Research, University of Vienna, Vienna, Austria
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Baumann B, Bohnenstengel F, Siegmund D, Wajant H, Weber C, Herr I, Debatin KM, Proksch P, Wirth T. Rocaglamide derivatives are potent inhibitors of NF-kappa B activation in T-cells. J Biol Chem 2002; 277:44791-800. [PMID: 12237314 DOI: 10.1074/jbc.m208003200] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Crude extracts from different Aglaia species are used as anti-inflammatory remedies in the traditional medicine of several countries from Southeast Asia. Because NF-kappaB transcription factors represent key regulators of genes involved in immune and inflammatory responses, we supposed that the anti-inflammatory effects of Aglaia extracts are mediated by the inhibition of NF-kappaB activity. Purified compounds of Aglaia species, namely 1H-cyclopenta[b]benzofuran lignans of the rocaglamide type as well as one aglain congener were tested for their ability to inhibit NF-kappaB activity. We show that a group of rocaglamides represent highly potent and specific inhibitors of tumor necrosis factor-alpha (TNFalpha) and phorbol 12-myristate 13-acetate (PMA)-induced NF-kappaB-dependent reporter gene activity in Jurkat T cells with IC(50) values in the nanomolar range. Some derivatives are less effective, and others are completely inactive. Rocaglamides are able to suppress the PMA-induced expression of NF-kappaB target genes and sensitize leukemic T cells to apoptosis induced by TNFalpha, cisplatin, and gamma-irradiation. The suppression of NF-kappaB activation correlated with the inhibition of induced IkappaB(alpha) degradation and IkappaB(alpha) kinase activation. The level of interference was determined and found to be localized upstream of the IkappaB kinase complex but downstream of the TNF receptor-associated protein 2. Our data suggest that rocaglamide derivatives could serve as lead structures in the development of anti-inflammatory and tumoricidal drugs.
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Affiliation(s)
- Bernd Baumann
- Department of Physiological Chemistry, Ulm University, Germany
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Inada A, Sorano T, Murata H, Inatomi Y, Darnaedi D, Nakanishi T. Diamide derivatives and cycloartanes from the leaves of Aglaia elliptica. Chem Pharm Bull (Tokyo) 2001; 49:1226-8. [PMID: 11558621 DOI: 10.1248/cpb.49.1226] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chemical examination of the leaves of Aglaia elliptica led to the isolation of two new diamides, 10-O-acetylaglain B (1) and 4-epiaglain A (2), two known diamides, aglain A (3) and odorine (4), and three known cycloartanes (5-7). The structures of 1 and 2 were elucidated by interpretation of the spectral data.
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Affiliation(s)
- A Inada
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan.
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Horgen FD, Edrada RA, de los Reyes G, Agcaoili F, Madulid DA, Wongpanich V, Angerhofer CK, Pezzuto JM, Soejarto DD, Farnsworth NR. Biological screening of rain forest plot trees from Palawan Island (Philippines). PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2001; 8:71-81. [PMID: 11292242 DOI: 10.1078/0944-7113-00019] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Study plots totaling 0.2 Ha were established in primary forest in the highlands of central Palawan Island, Philippines. Samples of various anatomical parts [typically leaf + twig (If/tw), stem bark (sb), and root (rt)] were collected from all tree species represented within the plots by individuals having a diameter at breast height > or = 10 cm. In all, 211 distinct samples were obtained from 68 tree species, representing 35 families (not including samples from 4 indeterminate species). Methanol extracts of these samples were tested in in vitro antiplasmodial, brine shrimp toxicity, and cytotoxicity assays. The following samples showed an IC50 < or = 10 microg/mL against either chloroquine-sensitive or chloroquine-resistant clones of Plasmodium falciparum: Acronychia laurifolia (sb), Agathis celebica (lf/tw), Aglaia sp. 1 (sb), Aglaia sp. 2 (lf/tw, rt), Bhesa sp. 1 (rt), Cinnamomum griffithii (lf/tw), Croton leiophyllus (rt), Dysoxylum cauliflorum (rt), Garcinia macgregorii (sb), Lithocarpus sp. 1 (rt, sb), Meliosma pinnata ssp. macrophylla (lf/tw, rt), Myristica guatteriifolia (lf/tw), Ochrosia glomerata (rt, sb), Swintonia foxworthyi (lf/tw), Syzygium sp. 1 (rt), Turpinia pomifera (rt), and Xanthophyllum flavescens (sb). Secondly, those samples which displayed > or = 50% immobilization of brine shrimp at 100 microg/mL were: Acronychia laurifolia (lf/tw/fruit, rt, sb), Agathis celebica (lf/tw, sb), Aglaia sp. 1 (lf/tw), Alphonsea sp. 1 (rt), Ardisia iwahigensis (lf/tw), Arthrophyllum ahernianum (lf/tw, rt, sb), Castanopsis cf. evansii (rt), Cinnamomum griffithii (lf/tw, rt), Croton argyratus (lf/tw), C. leiophyllus (lf/tw, rt), Dysoxylum cauliflorum (fruit, lf/tw, rt), Euonymus javanicus (rt), Glochidion sp. 1 (rt), Polyosma sp. 1 (rt), Symplocos polyandra (rt), Timonius gammillii (sb), and Xanthophyllum flavescens (rt). Lastly, samples which exhibited an IC50 < or = 20 microg/mL against one or more of the cancer cell lines employed (LU1, KB, KB-V1, P-388, LNCaP, or ZR-75-1) include: Acronychia laurifolia (lf/tw/fruit, rt, sb), Aglaia sp. 1 (sb), Aglaia sp. 2 (rt), Alphonsea sp. 1 (rt), Ardisia iwahigensis (lf/tw, rt, sb), Astronia cumingiana (sb), Croton argyratus (lf/tw, rt, sb), C. leiophyllus (lf/tw, rt), Dimorphocalyx murina (lf/tw, rt, sb), Lithocarpus caudatifolius (rt, sb), Litsea cf. sibuyanensis (rt), Syzygium cf. attenuatum (rt, sb), S. confertum (sb), Ternstroemia gitingensis (rt), and Ternstroemia sp. 1 (rt, sb).
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Affiliation(s)
- F D Horgen
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, USA
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Molleyres LP, Rindlisbacher A, Winkler T, Kumar V. Insecticidal natural products: new rocaglamide derivatives fromAglaia roxburghiana. ACTA ACUST UNITED AC 2000. [DOI: 10.1002/1096-9063(199904)55:4<494::aid-ps945>3.0.co;2-p] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Janaki S, Vijayasekaran V, Viswanathan S, Balakrishna K. Anti-inflammatory activity of Aglaia roxburghiana var. beddomei extract and triterpenes roxburghiadiol A and B. JOURNAL OF ETHNOPHARMACOLOGY 1999; 67:45-51. [PMID: 10616959 DOI: 10.1016/s0378-8741(99)00063-x] [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
The alcoholic extracts of the aerial portion and fruits of Aglaia roxburghiana (W.& A.) Miq. var. beddomei and the triterpenes roxburghiadiol A and B isolated from this plant were investigated for their anti-inflammatory activity in rats by carrageenin induced rat paw oedema and cotton pellet granuloma methods. They were also studied for their effect on mast cell degranulation induced by compound 48/80. Potent anti-inflammatory activity was observed for the extracts of the aerial portion and fruits of A. roxburghiana as well as for the triterpenes roxburghiadiol A and B. The mast cell degranulation induced by compound 48/80 was significantly reduced by A. roxburghiana extracts and the triterpenes. The triterpenes roxburghiadiol A and B may play a significant role in the observed anti-inflammatory effect of A. roxburghiana.
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Affiliation(s)
- S Janaki
- Institute of Pharmacology, Chennai Medical College, India.
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Lee SK, Cui B, Mehta RR, Kinghorn AD, Pezzuto JM. Cytostatic mechanism and antitumor potential of novel 1H-cyclopenta[b]benzofuran lignans isolated from Aglaia elliptica. Chem Biol Interact 1998; 115:215-28. [PMID: 9851291 DOI: 10.1016/s0009-2797(98)00073-8] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A total of five 1H-cyclopenta[b]benzofuran lignans (1-5) isolated from the stems of Aglaia elliptica B1. (Meliaceae) inhibited the growth of human cancer cells in culture. Of particular note, the IC50 values observed with 1 (methyl rocaglate), 2 (4'-demethoxy-3',4'-methylenedioxy-methyl rocaglate) and 5 (1-O-formyl-4'-demethoxy-3',4'-methylenedioxy-methyl rocaglate) were in the 1-30 ng/ml range. Prompted by the high potency of these responses, additional studies were performed with 2, a structurally representative isolate that was available in sufficient quantity as a result of the isolation process. Utilizing cultured Lu1 (human lung carcinoma) cells as a model, compound 2 induced accumulation in the G1/G0 phase of the cell cycle after 24 or 32 h of incubation; normal cell-cycle dynamics were observed at subsequent time periods. Cell proliferation was inhibited in a dose-dependent manner, but during the course of wash-out experiments, colony formation was not reduced. In addition, as judged by [3H]leucine incorporation, the test compound strongly inhibited protein biosynthesis (IC50 = 25 ng/ml). In analogous studies, nucleic acid biosynthesis was not reduced, even when cells were treated with concentrations as high as 1 microg/ml. These data suggest inhibition of protein synthesis is a key mode of action, and the compound functions by a cytostatic mechanism. Utilizing a human breast cancer cell line (BC1) sensitive to compound 2 in culture (IC50 = 0.9 ng/ml), an initial assessment of antitumor potential was performed. In accord with the in vitro results, the growth of BC1 in athymic mice was delayed by treatment with compound 2 (10 mg/kg body weight, three times per week, i.p.). Body weight was unaffected and no signs of overt toxicity were observed. However, growth paralleled that of the control group at later time points. Thus, novel 1H-cyclopenta[b]benzofuran lignans are potent cytostatic inhibitors of protein biosynthesis and are capable of delaying tumor growth in an in vivo model. Their full clinical or basic utility requires further investigation.
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MESH Headings
- Animals
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Benzofurans/isolation & purification
- Benzofurans/pharmacology
- Breast Neoplasms/drug therapy
- Breast Neoplasms/pathology
- Cell Division/drug effects
- Cell Survival/drug effects
- DNA, Neoplasm/biosynthesis
- DNA, Neoplasm/drug effects
- Drug Screening Assays, Antitumor
- Female
- Flow Cytometry
- Humans
- Lung Neoplasms/drug therapy
- Lung Neoplasms/pathology
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Neoplasm Proteins/biosynthesis
- Neoplasms, Experimental/drug therapy
- Neoplasms, Experimental/pathology
- Plants, Medicinal/chemistry
- RNA, Neoplasm/biosynthesis
- RNA, Neoplasm/drug effects
- Tumor Cells, Cultured
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Affiliation(s)
- S K Lee
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 60612, USA
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40
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Cui B, Chai H, Santisuk T, Reutrakul V, Farnsworth NR, Cordell GA, Pezzuto JM, Douglas Kinghorn A. Novel cytotoxic 1H-cyclopenta[b]benzofuran lignans from Aglaia elliptica. Tetrahedron 1997. [DOI: 10.1016/s0040-4020(97)10231-9] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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