51
|
Lorente A, Lamariano-Merketegi J, Albericio F, Álvarez M. Tetrahydrofuran-containing macrolides: a fascinating gift from the deep sea. Chem Rev 2013; 113:4567-610. [PMID: 23506053 DOI: 10.1021/cr3004778] [Citation(s) in RCA: 250] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Adriana Lorente
- Institute for Research in Biomedicine, Barcelona Science Park, University of Barcelona, Baldiri Reixac 10, 08028 Barcelona, Spain
| | | | | | | |
Collapse
|
52
|
Kim EJ, Lee JH, Choi H, Pereira AR, Ban YH, Yoo YJ, Kim E, Park JW, Sherman DH, Gerwick WH, Yoon YJ. Heterologous production of 4-O-demethylbarbamide, a marine cyanobacterial natural product. Org Lett 2012; 14:5824-7. [PMID: 23148802 DOI: 10.1021/ol302575h] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Heterologous expression of the barbamide biosynthetic gene cluster, obtained from the marine cyanobacterium Moorea producens, in the terrestrial actinobacterium Streptomyces venezuelae, resulted in the production of a new barbamide congener 4-O-demethylbarbamide, demonstrating the potential of this approach for investigating the assembly and tailoring of complex marine natural products.
Collapse
Affiliation(s)
- Eun Ji Kim
- Department of Chemistry and Nano Sciences, Ewha Womans University, Seoul 120-750, Republic of Korea
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
53
|
Costa M, Costa-Rodrigues J, Fernandes MH, Barros P, Vasconcelos V, Martins R. Marine cyanobacteria compounds with anticancer properties: a review on the implication of apoptosis. Mar Drugs 2012; 10:2181-2207. [PMID: 23170077 PMCID: PMC3497016 DOI: 10.3390/md10102181] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 09/11/2012] [Accepted: 09/18/2012] [Indexed: 01/07/2023] Open
Abstract
Marine cyanobacteria have been considered a rich source of secondary metabolites with potential biotechnological applications, namely in the pharmacological field. Chemically diverse compounds were found to induce cytoxicity, anti-inflammatory and antibacterial activities. The potential of marine cyanobacteria as anticancer agents has however been the most explored and, besides cytotoxicity in tumor cell lines, several compounds have emerged as templates for the development of new anticancer drugs. The mechanisms implicated in the cytotoxicity of marine cyanobacteria compounds in tumor cell lines are still largely overlooked but several studies point to an implication in apoptosis. This association has been related to several apoptotic indicators such as cell cycle arrest, mitochondrial dysfunctions and oxidative damage, alterations in caspase cascade, alterations in specific proteins levels and alterations in the membrane sodium dynamics. In the present paper a compilation of the described marine cyanobacterial compounds with potential anticancer properties is presented and a review on the implication of apoptosis as the mechanism of cell death is discussed.
Collapse
Affiliation(s)
- Margarida Costa
- Marine and Environmental Research Center—CIIMAR/CIMAR, Porto University, Rua dos Bragas, 289, 4050-123 Porto, Portugal; (M.C.); (V.V.)
| | - João Costa-Rodrigues
- Laboratory of Pharmacology and Cellular Biocompatibility, Faculty of Dental Medicine, Porto University, Rua Dr. Manuel Pereira da Silva, 4200-393 Porto, Portugal; (J.C.-R.); (M.H.F.)
| | - Maria Helena Fernandes
- Laboratory of Pharmacology and Cellular Biocompatibility, Faculty of Dental Medicine, Porto University, Rua Dr. Manuel Pereira da Silva, 4200-393 Porto, Portugal; (J.C.-R.); (M.H.F.)
| | - Piedade Barros
- Centre of Health and Environmental Research—CISA, Superior School of Health Technology of Porto, Polytechnic Institute of Porto, Rua Valente Perfeito, 322, 4400-330 Vila Nova de Gaia, Portugal;
| | - Vitor Vasconcelos
- Marine and Environmental Research Center—CIIMAR/CIMAR, Porto University, Rua dos Bragas, 289, 4050-123 Porto, Portugal; (M.C.); (V.V.)
- Faculty of Sciences, Porto University, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Rosário Martins
- Marine and Environmental Research Center—CIIMAR/CIMAR, Porto University, Rua dos Bragas, 289, 4050-123 Porto, Portugal; (M.C.); (V.V.)
- Centre of Health and Environmental Research—CISA, Superior School of Health Technology of Porto, Polytechnic Institute of Porto, Rua Valente Perfeito, 322, 4400-330 Vila Nova de Gaia, Portugal;
- Institute for Molecular and Cell Biology—IBMC, Porto University, Rua do Campo Alegre 823, 4150-180 Porto, Portugal
- Author to whom correspondence should be addressed; ; Tel.: +351-22-340-18-00; Fax: +351-22-339-06-08
| |
Collapse
|
54
|
Kang HS, Krunic A, Orjala J. Sanctolide A, a 14-membered PK-NRP hybrid macrolide from the cultured cyanobacterium Oscillatoria sancta (SAG 74.79). Tetrahedron Lett 2012; 53:3563-3567. [PMID: 22711943 PMCID: PMC3375721 DOI: 10.1016/j.tetlet.2012.04.136] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Sanctolide A (1), a 14-membered polyketide-nonribosomal peptide (PK-NRP) hybrid macrolide, was isolated from the cultured cyanobacterium Oscillatoria sancta (SAG 74.79). The planar structure was determined using various spectroscopic techniques including HRESIMS, and 1D and 2D NMR analyses. The relative configuration was assigned by J-based configurational analysis in combination with NOE correlations. The absolute configuration was determined by Mosher ester and enantioselective HPLC analyses. The structure of sanctolide A (1) features a rare N-methyl enamide and a 2-hydroxyisovaleric acid, which are incorporated to form a 14-membered macrolide ring structure, comprising a new type of cyanobacterial macrolides derived from a PKS-NRPS hybrid biosynthetic pathway.
Collapse
Affiliation(s)
- Hahk-Soo Kang
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Aleksej Krunic
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Jimmy Orjala
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| |
Collapse
|
55
|
Kang HS, Santarsiero BD, Kim H, Krunic A, Shen Q, Swanson SM, Chai H, Kinghorn AD, Orjala J. Merocyclophanes A and B, antiproliferative cyclophanes from the cultured terrestrial Cyanobacterium Nostoc sp. PHYTOCHEMISTRY 2012; 79:109-15. [PMID: 22571940 PMCID: PMC3374012 DOI: 10.1016/j.phytochem.2012.03.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 03/02/2012] [Accepted: 03/16/2012] [Indexed: 05/07/2023]
Abstract
The cell extract of a cultured terrestrial Nostoc sp. (UIC 10062), obtained from a sample collected at Grand Mere State Park in Michigan, displayed antiproliferative activity against the HT-29 human colon cancer cell line. Bioactivity-guided fractionation of the cell extract, combined with LC-MS analysis, led to the isolation of two cyclophanes, named merocyclophanes A and B (1 and 2). Their structures were determined by various spectroscopic techniques including HRESIMS, and 1D and 2D NMR analyses. The stereoconfiguration was assigned on the basis of X-ray crystallographic and CD analyses. The structures of merocyclophanes A and B (1 and 2) established a hitherto unknown [7.7]paracyclophane skeleton in nature, as characterized by α-branched methyls at C-1/14. Merocyclophanes A and B (1 and 2) displayed antiproliferative activity against the HT-29 human colon cancer cell line with IC₅₀ values of 3.3 and 1.7 μM, respectively.
Collapse
Affiliation(s)
- Hahk-Soo Kang
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, USA
| | - Bernard D. Santarsiero
- Center for Pharmaceutical Biotechnology, University of Illinois at Chicago, Chicago, Illinois 60607, USA
| | - Hyunjung Kim
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, USA
| | - Aleksej Krunic
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, USA
| | - Qi Shen
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, USA
| | - Steven M. Swanson
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, USA
| | - Heebyung Chai
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - A. Douglas Kinghorn
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - Jimmy Orjala
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, USA
- Adress for correspondence: Jimmy Orjala, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, 833, South Wood Street, University of Illinois at Chicago, Chicago, IL 60612, USA, (M/C781), Tel: 312-996-5583, Fax: 312-996-7107,
| |
Collapse
|
56
|
Akey DL, Gehret JJ, Khare D, Smith JL. Insights from the sea: structural biology of marine polyketide synthases. Nat Prod Rep 2012; 29:1038-49. [PMID: 22498975 DOI: 10.1039/c2np20016c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The world's oceans are a rich source of natural products with extremely interesting chemistry. Biosynthetic pathways have been worked out for a few, and the story is being enriched with crystal structures of interesting pathway enzymes. By far, the greatest number of structural insights from marine biosynthetic pathways has originated with studies of curacin A, a poster child for interesting marine chemistry with its cyclopropane and thiazoline rings, internal cis double bond, and terminal alkene. Using the curacin A pathway as a model, structural details are now available for a novel loading enzyme with remarkable dual decarboxylase and acetyltransferase activities, an Fe(2+)/α-ketoglutarate-dependent halogenase that dictates substrate binding order through conformational changes, a decarboxylase that establishes regiochemistry for cyclopropane formation, and a thioesterase with specificity for β-sulfated substrates that lead to terminal alkene offloading. The four curacin A pathway dehydratases reveal an intrinsic flexibility that may accommodate bulky or stiff polyketide intermediates. In the salinosporamide A pathway, active site volume determines the halide specificity of a halogenase that catalyzes for the synthesis of a halogenated building block. Structures of a number of putative polyketide cyclases may help in understanding reaction mechanisms and substrate specificities although their substrates are presently unknown.
Collapse
Affiliation(s)
- David L Akey
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | | | | | | |
Collapse
|
57
|
Villeneuve A, Laurent D, Chinain M, Gugger M, Humbert JF. MOLECULAR CHARACTERIZATION OF THE DIVERSITY AND POTENTIAL TOXICITY OF CYANOBACTERIAL MATS IN TWO TROPICAL LAGOONS IN THE SOUTH PACIFIC OCEAN(1). JOURNAL OF PHYCOLOGY 2012; 48:275-284. [PMID: 27009717 DOI: 10.1111/j.1529-8817.2012.01118.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Marine benthic cyanobacteria in tropical areas have recently been associated with several human poisoning events. To enhance the characterization of these microorganisms and their potential toxicity, benthic cyanobacterial communities were sampled in the lagoons of two islands (Raivavae and Rurutu) located in French Polynesia where human poisoning events by seafood had been reported. The morphological appearance of the mats was used to identify four types of cyanobacterial mat. By a 16S rRNA sequencing approach, it appeared that these mats were usually dominated by a restricted number of operational taxonomic units (OTUs), which were closely related to Leptolyngbya, Oscillatoria, Hydrocoleum, and Anabaena sequences, as previously reported in other tropical lagoons. Interestingly, we determined that these dominant filamentous OTUs were associated in the mats with other cyanobacteria, including unicellular species. By using a population genetic approach based on the sequencing of the internally transcribed spacer (ITS) of the rRNA operon, we found a very restricted genetic diversity in the most common OTU, which displayed a high sequence similarity with Leptolyngbya sp. In addition, there was no geographic differentiation at various spatial scales in the distribution of the different genotypes, suggesting that this species is able to spread over large distances. Finally, PCR screening of genes involved in the biosynthesis of known cyanotoxins revealed the presence of the saxitoxin gene (stxG) in two mats containing a mix of filamentous and unicellular cyanobacterial species.
Collapse
Affiliation(s)
- Aurélie Villeneuve
- Institut Pasteur, Collection des Cyanobactéries, Département de Microbiologie, 28 rue du Dr Roux, 75015 Paris, France CNRS, URA2172, 28 rue du Dr Roux, 75015 Paris, FranceUniversité de Toulouse, UPS, UMR 152 (Pharma-Dev), 118, rte de Narbonne, 31062 Toulouse cedex 9, FranceIRD; UMR 152, 98 713 Papeete, Tahiti, French PolynesiaInstitut Louis Malardé, Laboratoire des Micro-algues Toxiques, BP 30, 98713 Papeete, Tahiti, French PolynesiaINRA, UMR BIOEMCO, Site de l'ENS, 46 rue d'Ulm, 75005 Paris, France
| | - Dominique Laurent
- Institut Pasteur, Collection des Cyanobactéries, Département de Microbiologie, 28 rue du Dr Roux, 75015 Paris, France CNRS, URA2172, 28 rue du Dr Roux, 75015 Paris, FranceUniversité de Toulouse, UPS, UMR 152 (Pharma-Dev), 118, rte de Narbonne, 31062 Toulouse cedex 9, FranceIRD; UMR 152, 98 713 Papeete, Tahiti, French PolynesiaInstitut Louis Malardé, Laboratoire des Micro-algues Toxiques, BP 30, 98713 Papeete, Tahiti, French PolynesiaINRA, UMR BIOEMCO, Site de l'ENS, 46 rue d'Ulm, 75005 Paris, France
| | - Mireille Chinain
- Institut Pasteur, Collection des Cyanobactéries, Département de Microbiologie, 28 rue du Dr Roux, 75015 Paris, France CNRS, URA2172, 28 rue du Dr Roux, 75015 Paris, FranceUniversité de Toulouse, UPS, UMR 152 (Pharma-Dev), 118, rte de Narbonne, 31062 Toulouse cedex 9, FranceIRD; UMR 152, 98 713 Papeete, Tahiti, French PolynesiaInstitut Louis Malardé, Laboratoire des Micro-algues Toxiques, BP 30, 98713 Papeete, Tahiti, French PolynesiaINRA, UMR BIOEMCO, Site de l'ENS, 46 rue d'Ulm, 75005 Paris, France
| | - Muriel Gugger
- Institut Pasteur, Collection des Cyanobactéries, Département de Microbiologie, 28 rue du Dr Roux, 75015 Paris, France CNRS, URA2172, 28 rue du Dr Roux, 75015 Paris, FranceUniversité de Toulouse, UPS, UMR 152 (Pharma-Dev), 118, rte de Narbonne, 31062 Toulouse cedex 9, FranceIRD; UMR 152, 98 713 Papeete, Tahiti, French PolynesiaInstitut Louis Malardé, Laboratoire des Micro-algues Toxiques, BP 30, 98713 Papeete, Tahiti, French PolynesiaINRA, UMR BIOEMCO, Site de l'ENS, 46 rue d'Ulm, 75005 Paris, France
| | - Jean-François Humbert
- Institut Pasteur, Collection des Cyanobactéries, Département de Microbiologie, 28 rue du Dr Roux, 75015 Paris, France CNRS, URA2172, 28 rue du Dr Roux, 75015 Paris, FranceUniversité de Toulouse, UPS, UMR 152 (Pharma-Dev), 118, rte de Narbonne, 31062 Toulouse cedex 9, FranceIRD; UMR 152, 98 713 Papeete, Tahiti, French PolynesiaInstitut Louis Malardé, Laboratoire des Micro-algues Toxiques, BP 30, 98713 Papeete, Tahiti, French PolynesiaINRA, UMR BIOEMCO, Site de l'ENS, 46 rue d'Ulm, 75005 Paris, France
| |
Collapse
|
58
|
Jones AC, Ottilie S, Eustáquio AS, Edwards DJ, Gerwick L, Moore BS, Gerwick WH. Evaluation of Streptomyces coelicolor A3(2) as a heterologous expression host for the cyanobacterial protein kinase C activator lyngbyatoxin A. FEBS J 2012; 279:1243-51. [PMID: 22314229 DOI: 10.1111/j.1742-4658.2012.08517.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Filamentous marine cyanobacteria are extremely rich sources of bioactive natural products and often employ highly unusual biosynthetic enzymes in their assembly. However, the current lack of techniques for stable DNA transfer into these filamentous organisms, combined with the absence of heterologous expression strategies for nonribosomal cyanobacterial gene clusters, prohibit the creation of mutant strains or the heterologous production of these cyanobacterial compounds in other bacteria. In this study, we evaluated the capability of a derivative of the model actinomycete Streptomyces coelicolor A3(2) to express enzymes involved in the biosynthesis of the protein kinase C activator lyngbyatoxin A from a Hawaiian strain of Moorea producta (previously classified as Lyngbya majuscula). Despite large differences in GC content between these two bacteria and the presence of rare TTA/UUA leucine codons in lyngbyatoxin ORFs we were able to achieve expression of the cytochrome P450 monooxygenase LtxB and reverse prenyltransferase LtxC in S. coelicolor M512 and confirmed the in vitro functionality of S. coelicolor overexpressed LtxC. Attempts to express the entire lyngbyatoxin A gene cluster in S. coelicolor M512 were not successful because of transcript termination observed for the ltxA gene, which encodes a large nonribosomal peptide synthetase. However, these attempts did show a detectable level of cyanobacterial promoter recognition in Streptomyces. Successful expression of lyngbyatoxin A proteins in Streptomyces provides a new platform for biochemical investigation of natural product enzymes from Moorea strains.
Collapse
Affiliation(s)
- Adam C Jones
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093-0212, USA
| | | | | | | | | | | | | |
Collapse
|
59
|
Abstract
This review covers the literature on the chemically mediated ecology of cyanobacteria, including ultraviolet radiation protection, feeding-deterrence, allelopathy, resource competition, and signalling. To highlight the chemical and biological diversity of this group of organisms, evolutionary and chemotaxonomical studies are presented. Several technologically relevant aspects of cyanobacterial chemical ecology are also discussed.
Collapse
Affiliation(s)
- Pedro N Leão
- CIIMAR/CIMAR, Center for Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123, Porto, Portugal.
| | | | | | | | | |
Collapse
|
60
|
Piel J. Approaches to capturing and designing biologically active small molecules produced by uncultured microbes. Annu Rev Microbiol 2012; 65:431-53. [PMID: 21682647 DOI: 10.1146/annurev-micro-090110-102805] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Bacteria are one of the most important sources of bioactive natural products for drug discovery. Yet, in most habitats only a small percentage of all existing prokaryotes is amenable to cultivation and chemical study. There is strong evidence that the uncultivated diversity represents an enormous resource of novel biosynthetic enzymes and secondary metabolites. In addition, many animal-derived drug candidates that are structurally characterized but difficult to access seem to be produced by uncultivated, symbiotic bacteria. This review provides an overview about established and emerging techniques for the investigation and exploitation of the environmental metabolome. These include metagenomic library construction and screening, heterologous expression, community sequencing, and single-cell methods. Such tools, the advantages and shortcomings of which are discussed, have just begun to reveal the full metabolic potential of free-living and symbiotic bacteria, providing exciting new avenues for natural product research and environmental microbiology.
Collapse
Affiliation(s)
- Jörn Piel
- Kekulé Insitute of Organic Chemistry and Biochemistry, University of Bonn, 53121 Bonn, Germany.
| |
Collapse
|
61
|
Marine Cyanobacteria. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/b978-0-444-53836-9.00021-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
62
|
Genetic transformation of Diaporthe phaseolorum, an endophytic fungus found in mangrove forests, mediated by Agrobacterium tumefaciens. Curr Genet 2011; 58:21-33. [DOI: 10.1007/s00294-011-0362-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 12/20/2011] [Accepted: 12/21/2011] [Indexed: 02/01/2023]
|
63
|
Abstract
Covering: 2010. Previous review: Nat. Prod. Rep., 2011, 28, 196. This review covers the literature published in 2010 for marine natural products, with 895 citations (590 for the period January to December 2010) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1003 for 2010), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
Collapse
Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
| | | | | | | | | |
Collapse
|
64
|
Gutiérrez M, Pereira AR, Debonsi HM, Ligresti A, Di Marzo V, Gerwick WH. Cannabinomimetic lipid from a marine cyanobacterium. JOURNAL OF NATURAL PRODUCTS 2011; 74:2313-2317. [PMID: 21999614 PMCID: PMC3325759 DOI: 10.1021/np200610t] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
NMR-guided fractionation of two independent collections of the marine cyanobacteria Lyngbya majuscula obtained from Papua New Guinea and Oscillatoria sp. collected in Panama led to the isolation of the new lipids serinolamide A (3) and propenediester (4). Their structures were determined by NMR and MS data analysis. Serinolamide A (3) exhibited a moderate agonist effect and selectivity for the CB1 cannabinoid receptor (Ki=1.3 μM, >5-fold) and represents the newest addition to the known cannabinomimetic natural products of marine origin.
Collapse
Affiliation(s)
- Marcelino Gutiérrez
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Ciudad del Saber, Clayton 0843-01103, Panamá
| | - Alban R. Pereira
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Hosana M. Debonsi
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto-Universidade de São Paulo, Ribeirão Preto, São Paulo 14040903, Brazil
| | - Alessia Ligresti
- Institute of Biomolecular Chemistry, National Research Council, 80078 Pozzuoli, Italy
| | - Vincenzo Di Marzo
- Institute of Biomolecular Chemistry, National Research Council, 80078 Pozzuoli, Italy
| | - William H. Gerwick
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| |
Collapse
|
65
|
Genome-based studies of marine microorganisms to maximize the diversity of natural products discovery for medical treatments. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2011; 2011:384572. [PMID: 21826184 PMCID: PMC3151524 DOI: 10.1155/2011/384572] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2011] [Revised: 04/15/2011] [Accepted: 06/03/2011] [Indexed: 01/22/2023]
Abstract
Marine microorganisms are rich source for natural products which play important roles in pharmaceutical industry. Over the past decade, genome-based studies of marine microorganisms have unveiled the tremendous diversity of the producers of natural products and also contributed to the efficiency of harness the strain diversity and chemical diversity, as well as the genetic diversity of marine microorganisms for the rapid discovery and generation of new natural products. In the meantime, genomic information retrieved from marine symbiotic microorganisms can also be employed for the discovery of new medical molecules from yet-unculturable microorganisms. In this paper, the recent progress in the genomic research of marine microorganisms is reviewed; new tools of genome mining as well as the advance in the activation of orphan pathways and metagenomic studies are summarized. Genome-based research of marine microorganisms will maximize the biodiscovery process and solve the problems of supply and sustainability of drug molecules for medical treatments.
Collapse
|
66
|
Li D, Carr G, Zhang Y, Williams DE, Amlani A, Bottriell H, Mui ALF, Andersen RJ. Turnagainolides A and B, cyclic depsipeptides produced in culture by a Bacillus sp.: isolation, structure elucidation, and synthesis. JOURNAL OF NATURAL PRODUCTS 2011; 74:1093-9. [PMID: 21539394 DOI: 10.1021/np200033y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Two new cyclic depsipeptides, turnagainolides A (1) and B (2), have been isolated from laboratory cultures of a marine isolate of Bacillus sp. The structures of 1 and 2, which are simply epimers at the site of macrolactonization, were elucidated by analysis of NMR data and chemical degradation. A total synthesis of the turnagainolides confirmed their structures. Turnagainolide B (2) showed activity in a SHIP1 activation assay.
Collapse
Affiliation(s)
- Dehai Li
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | | | | | | | | | | | | | | |
Collapse
|
67
|
Genomic insights into the physiology and ecology of the marine filamentous cyanobacterium Lyngbya majuscula. Proc Natl Acad Sci U S A 2011; 108:8815-20. [PMID: 21555588 DOI: 10.1073/pnas.1101137108] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Filamentous cyanobacteria of the genus Lyngbya are important contributors to coral reef ecosystems, occasionally forming dominant cover and impacting the health of many other co-occurring organisms. Moreover, they are extraordinarily rich sources of bioactive secondary metabolites, with 35% of all reported cyanobacterial natural products deriving from this single pantropical genus. However, the true natural product potential and life strategies of Lyngbya strains are poorly understood because of phylogenetic ambiguity, lack of genomic information, and their close associations with heterotrophic bacteria and other cyanobacteria. To gauge the natural product potential of Lyngbya and gain insights into potential microbial interactions, we sequenced the genome of Lyngbya majuscula 3L, a Caribbean strain that produces the tubulin polymerization inhibitor curacin A and the molluscicide barbamide, using a combination of Sanger and 454 sequencing approaches. Whereas ∼ 293,000 nucleotides of the draft genome are putatively dedicated to secondary metabolism, this is far too few to encode a large suite of Lyngbya metabolites, suggesting Lyngbya metabolites are strain specific and may be useful in species delineation. Our analysis revealed a complex gene regulatory network, including a large number of sigma factors and other regulatory proteins, indicating an enhanced ability for environmental adaptation or microbial associations. Although Lyngbya species are reported to fix nitrogen, nitrogenase genes were not found in the genome or by PCR of genomic DNA. Subsequent growth experiments confirmed that L. majuscula 3L is unable to fix atmospheric nitrogen. These unanticipated life history characteristics challenge current views of the genus Lyngbya.
Collapse
|
68
|
Temporal dynamics of natural product biosynthesis in marine cyanobacteria. Proc Natl Acad Sci U S A 2011; 108:5226-31. [PMID: 21393570 DOI: 10.1073/pnas.1012813108] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Sessile marine organisms are prolific sources of biologically active natural products. However, these compounds are often found in highly variable amounts, with the abiotic and biotic factors governing their production remaining poorly understood. We present an approach that permits monitoring of in vivo natural product production and turnover using mass spectrometry and stable isotope ((15)N) feeding with small cultures of various marine strains of the natural product-rich cyanobacterial genus Lyngbya. This temporal comparison of the amount of in vivo (15)N labeling of nitrogen-containing metabolites represents a direct way to discover and evaluate factors influencing natural product biosynthesis, as well as the timing of specific steps in metabolite assembly, and is a strong complement to more traditional in vitro studies. Relative quantification of (15)N labeling allowed the concurrent measurement of turnover rates of multiple natural products from small amounts of biomass. This technique also afforded the production of the neurotoxic jamaicamides to be more carefully studied, including an assessment of how jamaicamide turnover compares with filament growth rate and primary metabolism and provided new insights into the biosynthetic timing of jamaicamide A bromination. This approach should be valuable in determining how environmental factors affect secondary metabolite production, ultimately yielding insight into the energetic balance among growth, primary production, and secondary metabolism, and thus aid in the development of methods to improve compound yields for biomedical or biotechnological applications.
Collapse
|
69
|
Abstract
The years 2000 through mid-2010 marked a transformational period in understanding of the biosynthesis of marine natural products. During this decade the field emerged from one largely dominated by chemical approaches to understanding biosynthetic pathways to one incorporating the full force of modern molecular biology and bioinformatics. Fusion of chemical and biological approaches yielded great advances in understanding the genetic and enzymatic basis for marine natural product biosynthesis. Progress was particularly pronounced for marine microbes, especially actinomycetes and cyanobacteria. During this single decade, both the first complete marine microbial natural product biosynthetic gene cluster sequence was released as well as the first entire genome sequence for a secondary metabolite-rich marine microbe. The decade also saw tremendous progress in recognizing the key role of marine microbial symbionts of invertebrates in natural product biosynthesis. Application of genetic and enzymatic knowledge led to genetic engineering of novel “unnatural” natural products during this time, as well as opportunities for discovery of novel natural products through genome mining. The current review highlights selected seminal studies from 2000 through to June 2010 that illustrate breakthroughs in understanding of marine natural product biosynthesis at the genetic, enzymatic, and small-molecule natural product levels. A total of 154 references are cited.
Collapse
Affiliation(s)
- Amy L. Lane
- Department of Chemistry, University of North Florida, Jacksonville, FL, 32224, USA.
| | - Bradley S. Moore
- Scripps Institution of Oceanography and the Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California at San Diego, La Jolla, CA, 92093, USA
| |
Collapse
|
70
|
|
71
|
Rynearson TA, Palenik B. Learning to read the oceans genomics of marine phytoplankton. ADVANCES IN MARINE BIOLOGY 2011; 60:1-39. [PMID: 21962749 DOI: 10.1016/b978-0-12-385529-9.00001-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The phytoplankton are key members of marine ecosystems, generating about half of global primary productivity, supporting valuable fisheries and regulating global biogeochemical cycles. Marine phytoplankton are phylogenetically diverse and are comprised of both prokaryotic and eukaryotic species. In the last decade, new insights have been gained into the ecology and evolution of these important organisms through whole genome sequencing projects and more recently, through both transcriptomics and targeted metagenomics approaches. Sequenced genomes of cyanobacteria are generally small, ranging in size from 1.8 to 9 million base pairs (Mbp). Eukaryotic genomes, in general, have a much larger size range and those that have been sequenced range from 12 to 57 Mbp. Whole genome sequencing projects have revealed key features of the evolutionary history of marine phytoplankton, their varied responses to environmental stress, their ability to scavenge and store nutrients and their unique ability to form elaborate cellular coverings. We have begun to learn how to read the 'language' of marine phytoplankton, as written in their DNA. Here, we review the ecological and evolutionary insights gained from whole genome sequencing projects, illustrate how these genomes are yielding information on marine natural products and informing nanotechnology as well as make suggestions for future directions in the field of marine phytoplankton genomics.
Collapse
Affiliation(s)
- Tatiana A Rynearson
- Graduate School of Oceanography, University of Rhode Island, Narragansett, RI, USA.
| | | |
Collapse
|
72
|
Nunnery JK, Mevers E, Gerwick WH. Biologically active secondary metabolites from marine cyanobacteria. Curr Opin Biotechnol 2010; 21:787-93. [PMID: 21030245 DOI: 10.1016/j.copbio.2010.09.019] [Citation(s) in RCA: 147] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Revised: 09/28/2010] [Accepted: 09/29/2010] [Indexed: 11/28/2022]
Abstract
Marine cyanobacteria are a rich source of complex bioactive secondary metabolites which derive from mixed biosynthetic pathways. Recently, several marine cyanobacterial natural products have garnered much attention due to their intriguing structures and exciting anti-proliferative or cancer cell toxic activities. Several other recently discovered secondary metabolites exhibit insightful neurotoxic activities whereas others are showing pronounced anti-inflammatory activity. A number of anti-infective compounds displaying activity against neglected diseases have also been identified, which include viridamides A and B, gallinamide A, dragonamide E, and the almiramides.
Collapse
Affiliation(s)
- Joshawna K Nunnery
- Scripps Institution of Oceanography and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | | | | |
Collapse
|