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Caso A, da Silva FB, Esposito G, Teta R, Sala GD, Cavalcanti LPAN, Valverde AL, Martins RCC, Costantino V. Exploring Chemical Diversity of Phorbas Sponges as a Source of Novel Lead Compounds in Drug Discovery. Mar Drugs 2021; 19:667. [PMID: 34940666 PMCID: PMC8708981 DOI: 10.3390/md19120667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/23/2021] [Accepted: 11/23/2021] [Indexed: 12/30/2022] Open
Abstract
Porifera, commonly referred to as marine sponges, are acknowledged as major producers of marine natural products (MNPs). Sponges of the genus Phorbas have attracted much attention over the years. They are widespread in all continents, and several structurally unique compounds have been identified from this species. Terpenes, mainly sesterterpenoids, are the major secondary metabolites isolated from Phorbas species, even though several alkaloids and steroids have also been reported. Many of these compounds have presented interesting biological activities. Particularly, Phorbas sponges have been demonstrated to be a source of cytotoxic metabolites. In addition, MNPs exhibiting cytostatic, antimicrobial, and anti-inflammatory activities have been isolated and structurally characterized. This review provides an overview of almost 130 secondary metabolites from Phorbas sponges and their biological activities, and it covers the literature since the first study published in 1993 until November 2021, including approximately 60 records. The synthetic routes to the most interesting compounds are briefly outlined.
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Affiliation(s)
- Alessia Caso
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano, 49, 80131 Naples, Italy; (A.C.); (G.E.); (R.T.)
| | - Fernanda Barbosa da Silva
- Instituto de Química de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Rio de Janeiro 21941-599, Brazil; (F.B.d.S.); (L.P.A.N.C.); (R.C.C.M.)
| | - Germana Esposito
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano, 49, 80131 Naples, Italy; (A.C.); (G.E.); (R.T.)
| | - Roberta Teta
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano, 49, 80131 Naples, Italy; (A.C.); (G.E.); (R.T.)
| | - Gerardo Della Sala
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80125 Naples, Italy;
| | - Laura P. A. Nunes Cavalcanti
- Instituto de Química de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Rio de Janeiro 21941-599, Brazil; (F.B.d.S.); (L.P.A.N.C.); (R.C.C.M.)
| | - Alessandra Leda Valverde
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista s/n, Niterói, Rio de Janeiro 24020-141, Brazil;
| | - Roberto Carlos C. Martins
- Instituto de Química de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Rio de Janeiro 21941-599, Brazil; (F.B.d.S.); (L.P.A.N.C.); (R.C.C.M.)
| | - Valeria Costantino
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano, 49, 80131 Naples, Italy; (A.C.); (G.E.); (R.T.)
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Kim KE, Kim AN, McCormick CJ, Stoltz BM. Late-Stage Diversification: A Motivating Force in Organic Synthesis. J Am Chem Soc 2021; 143:16890-16901. [PMID: 34614361 PMCID: PMC9285880 DOI: 10.1021/jacs.1c08920] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Interest in therapeutic discovery typically drives the preparation of natural product analogs, but these undertakings contribute significant advances for synthetic chemistry as well. The need for a highly efficient and scalable synthetic route to a complex molecular scaffold for diversification frequently inspires new methodological development or unique application of existing methods on structurally intricate systems. Additionally, synthetic planning with an aim toward late-stage diversification can provide access to otherwise unavailable compounds or facilitate preparation of complex molecules with diverse patterns of substitution around a shared carbon framework. For these reasons among others, programs dedicated to the diversification of natural product frameworks and other complex molecular scaffolds have been increasing in popularity, a trend likely to continue given their fruitfulness and breadth of impact. In this Perspective, we discuss our experience using late-stage diversification as a guiding principle for the synthesis of natural product analogs and reflect on the impact such efforts have on the future of complex molecule synthesis.
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Affiliation(s)
- Kelly E Kim
- Sciences and Mathematics Division, School of Interdisciplinary Arts and Sciences, University of Washington, Tacoma, Washington 98402, United States
| | - Alexia N Kim
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Carter J McCormick
- Sciences and Mathematics Division, School of Interdisciplinary Arts and Sciences, University of Washington, Tacoma, Washington 98402, United States
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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Elgoud Said AA, Mahmoud BK, Attia EZ, Abdelmohsen UR, Fouad MA. Bioactive natural products from marine sponges belonging to family Hymedesmiidae. RSC Adv 2021; 11:16179-16191. [PMID: 35479127 PMCID: PMC9031984 DOI: 10.1039/d1ra00228g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/26/2021] [Indexed: 12/23/2022] Open
Abstract
Natural products of marine origin exhibit extensive biological activities, and display a vital role in the exploration of new compounds for drug development. Marine sponges have been reported at the top with respect to the discovery of biologically active metabolites that have potential pharmaceutical applications. The family Hymedesmiidae belonging to the Demospongiae class includes ten accepted genera, of which four genera were explored for their bioactive metabolites, namely Phorbas, Hamigera, Hemimycale, and Kirkpatrickia. Genus Phorbas has received more attention due to the isolation of various classes of compounds with unique structures mainly diterpenes, alkaloids, sesterterpenes, and steroids that exhibited diverse biological activities including: antiviral, antimicrobial, and anti-inflammatory, whereas anticancer compounds predominated. This review focuses on the isolated secondary metabolites from family Hymedesmiidae with their biological potential and covers the literature from 1989 to 2020. Natural products of marine origin exhibit extensive biological activities, and display a vital role in the exploration of new compounds for drug development.![]()
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Affiliation(s)
- Asmaa Abo Elgoud Said
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt +2-86-2369075 +2-86-2347759
| | - Basma Khalaf Mahmoud
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt +2-86-2369075 +2-86-2347759
| | - Eman Zekry Attia
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt +2-86-2369075 +2-86-2347759
| | - Usama Ramadan Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt +2-86-2369075 +2-86-2347759.,Department of Pharmacognosy, Faculty of Pharmacy, Deraya University, Universities Zone 61111 New Minia City Egypt
| | - Mostafa Ahmed Fouad
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt +2-86-2369075 +2-86-2347759
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Integrated analytical workflow for chromatographic profiling and metabolite annotation of a cytotoxic Phorbas amaranthus extract. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1174:122720. [PMID: 33957353 DOI: 10.1016/j.jchromb.2021.122720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 11/22/2022]
Abstract
Phorbas is a widely studied genus of marine sponge and produce structurally rich cytotoxic metabolites. Still, only few studies have assessed metabolites present in Brazilian species. To circumvent redundancy, in this work, we applied and herein report the use of a scouting liquid chromatographic system associate to the design of experiment produced by the DryLab® software to obtain a fast and efficient chromatographic separation of the active hexane fraction, further enabling untargeted high-resolution mass spectrometry (HRMS) data. To this end, a crude hydroalcoholic extract of the sponge Phorbas amaranthus collected in Brazilian coast was prepared and partitioned. The cytotoxicity of the crude extract and the fractions was evaluated using tumor cell culture models. Fragmentation pathways assembled from HRMS data allowed the annotation of 18 known Phorbas metabolites, while 17 metabolites were inferred based on Global Natural Product Social Molecular Networking (GNPS), matching with a further 29 metabolites annotated through molecular subnetwork. The workflow employed demonstrates that chromatographic method development can be accelerated by the use of automated scouting systems and DryLab®, which is useful for profiling natural product libraries, as well as data curation by molecular clusters and should be incorporated to the tools of natural product chemists.
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Kim KE, Sakazaki Y, Stoltz BM. Synthesis of non-natural cyanthiwigin–gagunin hybrids through late-stage diversification of the cyanthiwigin natural product core. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Takahashi K, Ogura Y, Kuse M, Takikawa H. First synthesis and absolute configuration of phorbasin H, a diterpene carboxylic acid isolated from the sponge Phorbas gukulensis. Biosci Biotechnol Biochem 2019; 83:2198-2201. [DOI: 10.1080/09168451.2019.1654850] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
ABSTRACT
The first synthesis of phorbasin H, a diterpene carboxylic acid isolated from the sponge Phorbas gukulensis, was achieved using 1,4-trans-cyclohexanedimethanol and (S)-citronellal as starting materials. The data collected in this synthesis indicated the absolute configuration of the naturally occurring phorbasin H to be S.
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Affiliation(s)
- Kensuke Takahashi
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Yusuke Ogura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masaki Kuse
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Hirosato Takikawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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Anticancer Activity of Gukulenin A Isolated from the Marine Sponge Phorbas gukhulensis In Vitro and In Vivo. Mar Drugs 2019; 17:md17020126. [PMID: 30795557 PMCID: PMC6410303 DOI: 10.3390/md17020126] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/16/2019] [Accepted: 02/18/2019] [Indexed: 01/07/2023] Open
Abstract
Gukulenin A is a bis-tropolone tetraterpenoid isolated from the marine sponge Phorbas gukhulensis. In this study, we examined the anticancer activities of gukulenin A in ovarian cancer cell lines (A2780, SKOV3, OVCAR-3, and TOV-21G) and in an ovarian cancer mouse model generated by injecting A2780 cells. We found that gukulenin A suppressed tumor growth in A2780-bearing mice. Gukulenin A markedly inhibited cell viability in four ovarian cancer cell lines, including the A2780 cell line. Gukulenin A treatment increased the fraction of cells accumulated at the sub G1 phase in a dose-dependent manner and the population of annexin V-positive cells, suggesting that gukulenin A induces apoptotic cell death in ovarian cancer cells. In addition, gukulenin A triggered the activation of caspase-3, -8, and -9, and caspase inhibitors attenuated gukulenin A-induced A2780 cell death. The results suggest that gukulenin A may be a potential therapeutic agent for ovarian cancer.
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Abstract
This review on natural products containing a tropolonoid motif highlights analytical methods applied for structural identification and biosynthetic pathway analysis, the ecological context and the pharmacological potential of this compound class.
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Affiliation(s)
- Huijuan Guo
- Leibniz Institute for Natural Product Research and Infection Biology – Hans Knöll Institute
- 07745 Jena
- Germany
| | - David Roman
- Leibniz Institute for Natural Product Research and Infection Biology – Hans Knöll Institute
- 07745 Jena
- Germany
| | - Christine Beemelmanns
- Leibniz Institute for Natural Product Research and Infection Biology – Hans Knöll Institute
- 07745 Jena
- Germany
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Affiliation(s)
- Seewon Joung
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
| | - Rira Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
| | - Hee-Yoon Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
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Anti-Melanogenic Activity of Gagunin D, a Highly Oxygenated Diterpenoid from the Marine Sponge Phorbas sp., via Modulating Tyrosinase Expression and Degradation. Mar Drugs 2016; 14:md14110212. [PMID: 27869664 PMCID: PMC5128755 DOI: 10.3390/md14110212] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/10/2016] [Accepted: 11/14/2016] [Indexed: 12/19/2022] Open
Abstract
Tyrosinase is the rate-limiting enzyme critical for melanin synthesis and controls pigmentation in the skin. The inhibition of tyrosinase is currently the most common approach for the development of skin-whitening cosmetics. Gagunin D (GD), a highly oxygenated diterpenoid isolated from the marine sponge Phorbas sp., has exhibited cytotoxicity toward human leukemia cells. However, the effect of GD on normal cells and the molecular mechanisms remain to be elucidated. In the present study, we identified for the first time the anti-melanogenic activity of GD and its precise underlying mechanisms in mouse melan-a cells. GD significantly inhibited melanin synthesis in the melan-a cells and a reconstructed human skin model. Further analysis revealed that GD suppressed the expression of tyrosinase and increased the rate of tyrosinase degradation. GD also inhibited tyrosinase enzymatic activity. In addition, GD effectively suppressed the expression of proteins associated with melanosome transfer. These findings suggest that GD is a potential candidate for cosmetic formulations due to its multi-functional properties.
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O'Connor NR, Wood JL, Stoltz BM. Synthetic Applications and Methodological Developments of Donor-Acceptor Cyclopropanes and Related Compounds. Isr J Chem 2016; 56:431-444. [PMID: 31118539 PMCID: PMC6527366 DOI: 10.1002/ijch.201500089] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Donor-acceptor cyclopropanes are convenient precursors to reactive and versatile 1,3-dipoles, and have found application in the synthesis of a variety of carbo- and heterocyclic scaffolds. This perspective review details our laboratory's use of donor-acceptor cyclopropanes as intermediates toward the total synthesis of various natural products. We also discuss our work in the development of novel cycloadditions and rearrangements of donor-acceptor cyclopropanes and aziridines, as well as an example of an aryne insertion proceeding via fragmentation of a transient donor-acceptor cyclobutane.
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Affiliation(s)
- Nicholas R O'Connor
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd, MC 101-20, Pasadena, CA 91125 (USA)
| | - John L Wood
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX 76798 (USA)
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd, MC 101-20, Pasadena, CA 91125 (USA)
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Marcos I, Moro R, Gil-Mesón A, Díez D. 7-6-5 Tricarbocyclic Diterpenes. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2016. [DOI: 10.1016/b978-0-444-63602-7.00005-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Potential inhibitors for isocitrate lyase of Mycobacterium tuberculosis and non-M. tuberculosis: a summary. BIOMED RESEARCH INTERNATIONAL 2015; 2015:895453. [PMID: 25649791 PMCID: PMC4306415 DOI: 10.1155/2015/895453] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 12/01/2014] [Accepted: 12/01/2014] [Indexed: 11/17/2022]
Abstract
Isocitrate lyase (ICL) is the first enzyme involved in glyoxylate cycle. Many plants and microorganisms are relying on glyoxylate cycle enzymes to survive upon downregulation of tricarboxylic acid cycle (TCA cycle), especially Mycobacterium tuberculosis (MTB). In fact, ICL is a potential drug target for MTB in dormancy. With the urge for new antitubercular drug to overcome tuberculosis treat such as multidrug resistant strain and HIV-coinfection, the pace of drug discovery has to be increased. There are many approaches to discovering potential inhibitor for MTB ICL and we hereby review the updated list of them. The potential inhibitors can be either a natural compound or synthetic compound. Moreover, these compounds are not necessary to be discovered only from MTB ICL, as it can also be discovered by a non-MTB ICL. Our review is categorized into four sections, namely, (a) MTB ICL with natural compounds; (b) MTB ICL with synthetic compounds; (c) non-MTB ICL with natural compounds; and (d) non-MTB ICL with synthetic compounds. Each of the approaches is capable of overcoming different challenges of inhibitor discovery. We hope that this paper will benefit the discovery of better inhibitor for ICL.
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Dupont S, Carré-Mlouka A, Descarrega F, Ereskovsky A, Longeon A, Mouray E, Florent I, Bourguet-Kondracki ML. Diversity and biological activities of the bacterial community associated with the marine sponge Phorbas tenacior (Porifera, Demospongiae). Lett Appl Microbiol 2013; 58:42-52. [PMID: 24033393 DOI: 10.1111/lam.12154] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 08/27/2013] [Accepted: 08/27/2013] [Indexed: 12/16/2022]
Abstract
UNLABELLED The diversity of the cultivable microbiota of the marine sponge Phorbas tenacior frequently found in the Mediterranean Sea was investigated, and its potential as a source of antimicrobial, antioxidant and antiplasmodial compounds was evaluated. The cultivable bacterial community was studied by isolation, cultivation and 16S rRNA gene sequencing. Twenty-three bacterial strains were isolated and identified in the Proteobacteria (α or γ classes) and Actinobacteria phyla. Furthermore, three different bacterial morphotypes localized extracellularly within the sponge tissues were revealed by microscopic observations. Bacterial strains were assigned to seven different genera, namely Vibrio, Photobacterium, Shewanella, Pseudomonas, Ruegeria, Pseudovibrio and Citricoccus. The strains affiliated to the same genus were differentiated according to their genetic dissimilarities using random amplified polymorphic DNA (RAPD) analyses. Eleven bacterial strains were selected for evaluation of their bioactivities. Three isolates Pseudovibrio P1Ma4, Vibrio P1MaNal1 and Citricoccus P1S7 revealed antimicrobial activity; Citricoccus P1S7 and Vibrio P1MaNal1 isolates also exhibited antiplasmodial activity, while two Vibrio isolates P1Ma8 and P1Ma5 displayed antioxidant activity. These data confirmed the importance of Proteobacteria and Actinobacteria associated with marine sponges as a reservoir of bioactive compounds. SIGNIFICANCE AND IMPACT OF THE STUDY This study presents the first report on the diversity of the cultivable bacteria associated with the marine sponge Phorbas tenacior, frequently found in the Mediterranean Sea. Evaluation of the antiplasmodial, antimicrobial and antioxidant activities of the isolates has been investigated and allowed to select bacterial strains, confirming the importance of Proteobacteria and Actinobacteria as sources of bioactive compounds.
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Affiliation(s)
- S Dupont
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes, UMR 7245 CNRS, Muséum National d'Histoire Naturelle, Paris, France
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Jeon JE, Liao L, Kim H, Sim CJ, Oh DC, Oh KB, Shin J. Cytotoxic diterpenoid pseudodimers from the Korean sponge Phorbas gukhulensis. JOURNAL OF NATURAL PRODUCTS 2013; 76:1679-1685. [PMID: 24025124 DOI: 10.1021/np400389c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Four new cytotoxic diterpenoid pseudodimers (2-5), along with a previously reported one, gukulenin A (1), were isolated from the marine sponge Phorbas gukhulensis collected off the coast of Gagu-do, Korea. These novel compounds, designated gukulenins C-F (2-5), were determined by extensive spectroscopic analyses to be pseudodimers of the gagunins, like gukulenin A. The termini of the tropolone-containing side chains in gukulenins C-E (2-4) were found to have diverse modifications involving acetamides or taurine, whereas gukulenin F (5) was formed from 1 by the ring-opening of a cyclic hemiketal. The relative and absolute configurations were assigned by Murata's and modified Snatzke's methods using a HETLOC experiment and a CD measurement of a dimolybdenum complex, respectively. All of these compounds exhibited significant cytotoxicity against the K562 and A549 cell lines.
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Affiliation(s)
- Ju-eun Jeon
- Natural Products Research Institute, College of Pharmacy, Seoul National University , San 56-1, Sillim, Gwanak, Seoul 151-742, Korea
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Shibuya GM, Enquist JA, Stoltz BM. Enantioselective synthesis of the 5-6-7 carbocyclic core of the gagunin diterpenoids. Org Lett 2013; 15:3480-3. [PMID: 23802176 DOI: 10.1021/ol401514s] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A catalytic enantioselective double allylic alkylation reaction has been employed in the synthesis of the core of the gagunin diterpenoids. Enantioenriched material was advanced in 11 steps to afford the core of the highly oxygenated target, which includes two all-carbon quaternary stereocenters.
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Affiliation(s)
- Grant M Shibuya
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, MC 101-20, Pasadena, California 91125, USA
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Inhibition of yeast-to-hypha transition in Candida albicans by phorbasin H isolated from Phorbas sp. Appl Microbiol Biotechnol 2012; 97:3141-8. [DOI: 10.1007/s00253-012-4549-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Revised: 10/23/2012] [Accepted: 10/24/2012] [Indexed: 10/27/2022]
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Wang W, Lee Y, Lee TG, Mun B, Giri AG, Lee J, Kim H, Hahn D, Yang I, Chin J, Choi H, Nam SJ, Kang H. Phorone A and Isophorbasone A, Sesterterpenoids Isolated from the Marine Sponge Phorbas sp. Org Lett 2012; 14:4486-9. [DOI: 10.1021/ol3019874] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Weihong Wang
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
| | - Yehee Lee
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
| | - Tae Gu Lee
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
| | - Bora Mun
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
| | - Awadut G. Giri
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
| | - Jihye Lee
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
| | - Hiyoung Kim
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
| | - Dongyup Hahn
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
| | - Inho Yang
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
| | - Jungwook Chin
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
| | - Hyukjae Choi
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
| | - Sang-Jip Nam
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
| | - Heonjoong Kang
- Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 151-747, Korea, and College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 540-950, Korea
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Katavic PL, Jumaryatno P, Hooper JNA, Blanchfield JT, Garson MJ. Oxygenated Terpenoids from the Australian Sponges Coscinoderma matthewsi and Dysidea sp., and the Nudibranch Chromodoris albopunctata. Aust J Chem 2012. [DOI: 10.1071/ch12010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The isolation and structure elucidation of seven new oxygenated terpenoids and eight known terpene metabolites from marine invertebrates collected at the Inner Gneerings Reef, South East Queensland, is discussed. Investigation of the sponge Coscinoderma matthewsi yielded an epoxylactone derivative (1) of the known furanoterpene tetradehydrofurospongin-1 (2). A chemical investigation of the dissected nudibranch Chromodoris albopunctata provided the new oxygenated diterpenes 12α-acetoxyspongian-16-one (10), 20-acetoxyspongian-16-one (12), 20-oxyspongian-16-one propionate (13) and 12α,20-dioxyspongian-16-one dipropionate (14) in conjunction with three other known diterpene metabolites, while two new chromodorolides, D (17) and E (18), in addition to four known diterpenes were isolated from a Dysidea sp.
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Hwang BS, Yang C, Rho JR. A new derivative of phorbaketals isolated from a Marine Sponge Phorbas species. JOURNAL OF THE KOREAN MAGNETIC RESONANCE SOCIETY 2011. [DOI: 10.6564/jkmrs.2011.15.2.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Jung M, Liermann JC, Opatz T, Erkel G. Ganodermycin, a novel inhibitor of CXCL10 expression from Ganoderma applanatum. J Antibiot (Tokyo) 2011; 64:683-686. [PMID: 21792205 DOI: 10.1038/ja.2011.64] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
CXCL10 (inducible protein-10) is a highly inducible chemoattractant, which contributes to the recruitment of inflammatory cells, such as macrophages and T-lymphocytes, and thereby has important roles in chronic inflammatory conditions. In a search for new inhibitors of CXCL10 expression in MonoMac6 cells, a novel compound, designated as Ganodermycin, was isolated from fermentations of the basidiomycete Ganoderma applanatum. The structure was determined by a combination of spectroscopic techniques. Ganodermycin inhibited the lipopolysaccharide (LPS)/interferon (IFN)-γ-induced CXCL10 promoter activity in transiently transfected MonoMac6 cells in a dose-dependent manner with IC(50) values of 15-20 μg ml(-1) (53-71 μM). Ganodermycin also reduced LPS/IFN-γ-induced CXCL10 protein synthesis and excretion.
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Affiliation(s)
- Mathias Jung
- Institute of Biotechnology and Drug Research (IBWF), Kaiserslautern, Germany
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Rho JR, Hwang BS, Joung S, Byun MR, Hong JH, Lee HY. Phorbasones A and B, Sesterterpenoids Isolated from the Marine Sponge Phorbas sp. and Induction of Osteoblast Differentiation. Org Lett 2011; 13:884-7. [DOI: 10.1021/ol1029386] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jung-Rae Rho
- Department of Oceanography, Kunsan National University, Jeonbuk, 573-701, Korea, School of Life Sciences and Biotechnology, Korea University, Seoul, 136-701, Korea, and Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
| | - Buyng Su Hwang
- Department of Oceanography, Kunsan National University, Jeonbuk, 573-701, Korea, School of Life Sciences and Biotechnology, Korea University, Seoul, 136-701, Korea, and Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
| | - Seewon Joung
- Department of Oceanography, Kunsan National University, Jeonbuk, 573-701, Korea, School of Life Sciences and Biotechnology, Korea University, Seoul, 136-701, Korea, and Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
| | - Mi Ran Byun
- Department of Oceanography, Kunsan National University, Jeonbuk, 573-701, Korea, School of Life Sciences and Biotechnology, Korea University, Seoul, 136-701, Korea, and Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
| | - Jeong-Ho Hong
- Department of Oceanography, Kunsan National University, Jeonbuk, 573-701, Korea, School of Life Sciences and Biotechnology, Korea University, Seoul, 136-701, Korea, and Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
| | - Hee-Yoon Lee
- Department of Oceanography, Kunsan National University, Jeonbuk, 573-701, Korea, School of Life Sciences and Biotechnology, Korea University, Seoul, 136-701, Korea, and Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
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24
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Park SY, Choi H, Hwang H, Kang H, Rho JR. Gukulenins A and B, cytotoxic tetraterpenoids from the marine sponge Phorbas gukulensis. JOURNAL OF NATURAL PRODUCTS 2010; 73:734-737. [PMID: 20232859 DOI: 10.1021/np900606h] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Gukulenins A (1) and B (2), both having an unprecedented skeleton with a bis-tropolone moiety, were isolated from the Korean marine sponge Phorbas gukulensis. They exhibited significant cytotoxicity against human pharynx, stomach, colon, and renal cancer cell lines in the range 0.05-0.80 microM.
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Affiliation(s)
- Su Young Park
- Department of Oceanography, Kunsan National University, Jeonbuk, 673-701, South Korea
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25
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Blunt JW, Copp BR, Munro MHG, Northcote PT, Prinsep MR. Marine natural products. Nat Prod Rep 2010; 27:165-237. [DOI: 10.1039/b906091j] [Citation(s) in RCA: 322] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Rho JR, Hwang BS, Sim CJ, Joung S, Lee HY, Kim HJ. Phorbaketals A, B, and C, Sesterterpenoids with a Spiroketal of Hydrobenzopyran Moiety Isolated from the Marine Sponge Phorbas sp. Org Lett 2009; 11:5590-3. [DOI: 10.1021/ol902223m] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jung-Rae Rho
- Department of Oceanography, Kunsan National University, Jeonbuk, 573-701, South Korea, Department of Biological Sciences, College of Life Science and Nano Technology, Hannam University, Daejeon, 305-811, South Korea, Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea, and Jinis BDRD Institute, Dunsan, Bongdong, Jeonbuk, 565-902, South Korea
| | - Buyng Su Hwang
- Department of Oceanography, Kunsan National University, Jeonbuk, 573-701, South Korea, Department of Biological Sciences, College of Life Science and Nano Technology, Hannam University, Daejeon, 305-811, South Korea, Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea, and Jinis BDRD Institute, Dunsan, Bongdong, Jeonbuk, 565-902, South Korea
| | - Chung Ja Sim
- Department of Oceanography, Kunsan National University, Jeonbuk, 573-701, South Korea, Department of Biological Sciences, College of Life Science and Nano Technology, Hannam University, Daejeon, 305-811, South Korea, Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea, and Jinis BDRD Institute, Dunsan, Bongdong, Jeonbuk, 565-902, South Korea
| | - Seewon Joung
- Department of Oceanography, Kunsan National University, Jeonbuk, 573-701, South Korea, Department of Biological Sciences, College of Life Science and Nano Technology, Hannam University, Daejeon, 305-811, South Korea, Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea, and Jinis BDRD Institute, Dunsan, Bongdong, Jeonbuk, 565-902, South Korea
| | - Hee-Yoon Lee
- Department of Oceanography, Kunsan National University, Jeonbuk, 573-701, South Korea, Department of Biological Sciences, College of Life Science and Nano Technology, Hannam University, Daejeon, 305-811, South Korea, Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea, and Jinis BDRD Institute, Dunsan, Bongdong, Jeonbuk, 565-902, South Korea
| | - Hyeon-Jin Kim
- Department of Oceanography, Kunsan National University, Jeonbuk, 573-701, South Korea, Department of Biological Sciences, College of Life Science and Nano Technology, Hannam University, Daejeon, 305-811, South Korea, Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea, and Jinis BDRD Institute, Dunsan, Bongdong, Jeonbuk, 565-902, South Korea
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27
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Elyashberg ME, Blinov KA, Williams AJ. The application of empirical methods of (13)C NMR chemical shift prediction as a filter for determining possible relative stereochemistry. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2009; 47:333-341. [PMID: 19206140 DOI: 10.1002/mrc.2396] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The reliable determination of stereocenters contained within chemical structures usually requires utilization of NMR data, chemical derivatization, molecular modeling, quantum-mechanical (QM) calculations and, if available, X-ray analysis. In this article, we show that the number of stereoisomers which need to be thoroughly verified, can be significantly reduced by the application of NMR chemical shift calculation to the full stereoisomer set of possibilities using a fragmental approach based on HOSE codes. The applicability of this suggested method is illustrated using experimental data published for a series of complex chemical structures.
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Affiliation(s)
- Mikhail E Elyashberg
- Advanced Chemistry Development, Moscow Department, 6 Akademik Bakulev Street, Moscow 117513, Russian Federation
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