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Matsumori N, Hieda M, Morito M, Wakamiya Y, Oishi T. Truncated derivatives of amphidinol 3 reveal the functional role of polyol chain in sterol-recognition and pore formation. Bioorg Med Chem Lett 2024; 98:129594. [PMID: 38104905 DOI: 10.1016/j.bmcl.2023.129594] [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: 09/24/2023] [Revised: 12/02/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023]
Abstract
Here we examined the membrane binding and pore formation of amphidinol 3 (AM3) and its truncated synthetic derivatives. Importantly, both of the membrane affinity and pore formation activity were well correlated with the reported antifungal activity. Our data clearly demonstrated that the C1-C30 moiety of AM3 plays essential roles both in sterol recognition and stable pore formation. Based on the current findings, we updated the interacting model between AM3 and sterol, in which the moiety encompassing from C21 to C67 accommodates a sterol molecule with forming hydrogen bonds with the sterol hydroxy group and van der Waals contact between AM3 polyol and sterol skeleton. Although the conformation of the C1-C20 moiety of AM3 is hard to specify due to its flexibility, the region likely contributes to stabilization of pore structure.
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Affiliation(s)
- Nobuaki Matsumori
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Manami Hieda
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Masayuki Morito
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yuma Wakamiya
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Discovery Chemistry Department, Chugai Pharmaceutical Co., Ltd., 200. 216 Totsukacho, Totsuka-ku, Yokohama 244-8602, Japan
| | - Tohru Oishi
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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Rodríguez-Berríos RR, Ríos-Delgado AM, Perdomo-Lizardo AP, Cardona-Rivera AE, Vidal-Rosado ÁG, Narváez-Lozano GA, Nieves-Quiñones IA, Rodríguez-Vargas JA, Álamo-Diverse KY, Lebrón-Acosta N, Medina-Berríos N, Rivera-Lugo PS, Avellanet-Crespo YA, Ortiz-Colón YW. Extraction, Isolation, Characterization, and Bioactivity of Polypropionates and Related Polyketide Metabolites from the Caribbean Region. Antibiotics (Basel) 2023; 12:1087. [PMID: 37508183 PMCID: PMC10376297 DOI: 10.3390/antibiotics12071087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/14/2023] [Accepted: 06/14/2023] [Indexed: 07/30/2023] Open
Abstract
The Caribbean region is a hotspot of biodiversity (i.e., algae, sponges, corals, mollusks, microorganisms, cyanobacteria, and dinoflagellates) that produces secondary metabolites such as polyketides and polypropionates. Polyketides are a diverse class of natural products synthesized by organisms through a biosynthetic pathway catalyzed by polyketide synthase (PKS). This group of compounds is subdivided into fatty acids, aromatics, and polypropionates such as macrolides, and linear and cyclic polyethers. Researchers have studied the Caribbean region to find natural products and focused on isolation, purification, structural characterization, synthesis, and conducting biological assays against parasites, cancer, fungi, and bacteria. These studies have been summarized in this review, including research from 1981 to 2020. This review includes about 90 compounds isolated in the Caribbean that meet the structural properties of polyketides. Out of 90 compounds presented, 73 have the absolute stereochemical configuration, and 82 have shown biological activity. We expect to motivate the researchers to continue exploring the Caribbean region's marine environments to discover and investigate new polyketide and polypropionate natural products.
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Affiliation(s)
- Raúl R. Rodríguez-Berríos
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, P.O. Box 23346, San Juan PR 00931-3346, Puerto Rico
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3
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Yang X, Yan Z, Chen J, Wang D, Li K. Acute Toxicity of the Dinoflagellate Amphidinium carterae on Early Life Stages of Zebrafish ( Danio rerio). TOXICS 2023; 11:370. [PMID: 37112597 PMCID: PMC10144361 DOI: 10.3390/toxics11040370] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/08/2023] [Accepted: 04/09/2023] [Indexed: 06/19/2023]
Abstract
Dinoflagellates of the genus Amphidinium can produce a variety of polyketides, such as amphidinols (AMs), amphidinoketides, and amphidinin, that have hemolytic, cytotoxic, and fish mortality properties. AMs pose a significant threat to ecological function due to their membrane-disrupting and permeabilizing properties, as well as their hydrophobicity. Our research aims to investigate the disparate distribution of AMs between intracellular and extracellular environments, as well as the threat that AMs pose to aquatic organisms. As a result, AMs containing sulphate groups such as AM19 with lower bioactivity comprised the majority of A. carterae strain GY-H35, while AMs without sulphate groups such as AM18 with higher bioactivity displayed a higher proportion and hemolytic activity in the extracellular environment, suggesting that AMs may serve as allelochemicals. When the concentration of extracellular crude extracts of AMs reached 0.81 µg/mL in the solution, significant differences in zebrafish embryonic mortality and malformation were observed. Over 96 hpf, 0.25 μL/mL of AMs could cause significant pericardial edema, heart rate decrease, pectoral fin deformation, and spinal deformation in zebrafish larvae. Our findings emphasized the necessity of conducting systematic research on the differences between the intracellular and extracellular distribution of toxins to gain a more accurate understanding of their effects on humans and the environment.
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Affiliation(s)
- Xiao Yang
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; (X.Y.); (Z.Y.); (J.C.); (D.W.)
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi Yan
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; (X.Y.); (Z.Y.); (J.C.); (D.W.)
- School of Ocean, Yantai University, Yantai 264005, China
| | - Jingjing Chen
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; (X.Y.); (Z.Y.); (J.C.); (D.W.)
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Derui Wang
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; (X.Y.); (Z.Y.); (J.C.); (D.W.)
- College of Marine Science, Beibu Gulf University, Qinzhou 535011, China
| | - Ke Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; (X.Y.); (Z.Y.); (J.C.); (D.W.)
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
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Durán-Riveroll LM, Weber J, Krock B. First Identification of Amphidinols from Mexican Strains and New Analogs. Toxins (Basel) 2023; 15:163. [PMID: 36828476 PMCID: PMC9961859 DOI: 10.3390/toxins15020163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/25/2023] [Accepted: 02/10/2023] [Indexed: 02/18/2023] Open
Abstract
The genus Amphidinium has been the subject of recent attention due to the production of polyketide metabolites. Some of these compounds have shown significant bioactivities and could be related to species interactions in the natural benthic microenvironment. Among these compounds, amphidinols (AMs) are suspected to be related to fish kills and probably implicated in ciguatera symptoms associated with the occurrence of benthic harmful algal blooms (bHABs). Here, we present the first report of a variety of AMs produced by cultured strains from several species from the Mexican Pacific, the Gulf of California, and the Gulf of Mexico. Through ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UHPLC-MS/MS), ten previously known AMs (AM02, -04, -05, -06, -07, -09, -11, -14, -15, and -17), four recently reported AMs (N7, N8/N9, N12, and N13), and three new variants (U1, U2, and U3) were identified. Of the twelve analyzed Amphidinium cultures, five were not AM producers, and the cell quotas of the remaining seven strains ranged from close to nondetectable to a maximum of 1694 fg cell-1, with many intermediate levels in between. The cultures from the Mexican North Pacific coast produced AMs in a higher quantity and variety than those from worldwide locations. This is the first study of AMs from Mexican Amphidinium strains, and our results confirm the relevance of continuing the investigation of the genus bioactive metabolites.
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Affiliation(s)
- Lorena M. Durán-Riveroll
- CONACyT-Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada 22860, Baja California, Mexico
- Alfred Wegener Institut-Helmholtz Zentrum für Polar und Meeresforschung, 27570 Bremerhaven, Germany
| | - Jannik Weber
- Alfred Wegener Institut-Helmholtz Zentrum für Polar und Meeresforschung, 27570 Bremerhaven, Germany
- Hochschule RheinMain, 65428 Rüsselsheim, Germany
| | - Bernd Krock
- Alfred Wegener Institut-Helmholtz Zentrum für Polar und Meeresforschung, 27570 Bremerhaven, Germany
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Dinoflagellate Phosphopantetheinyl Transferase (PPTase) and Thiolation Domain Interactions Characterized Using a Modified Indigoidine Synthesizing Reporter. Microorganisms 2022; 10:microorganisms10040687. [PMID: 35456738 PMCID: PMC9027781 DOI: 10.3390/microorganisms10040687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/07/2022] [Accepted: 03/14/2022] [Indexed: 02/01/2023] Open
Abstract
Photosynthetic dinoflagellates synthesize many toxic but also potential therapeutic compounds therapeutics via polyketide/non-ribosomal peptide synthesis, a common means of producing natural products in bacteria and fungi. Although canonical genes are identifiable in dinoflagellate transcriptomes, the biosynthetic pathways are obfuscated by high copy numbers and fractured synteny. This study focuses on the carrier domains that scaffold natural product synthesis (thiolation domains) and the phosphopantetheinyl transferases (PPTases) that thiolate these carriers. We replaced the thiolation domain of the indigoidine producing BpsA gene from Streptomyces lavendulae with those of three multidomain dinoflagellate transcripts and coexpressed these constructs with each of three dinoflagellate PPTases looking for specific pairings that would identify distinct pathways. Surprisingly, all three PPTases were able to activate all the thiolation domains from one transcript, although with differing levels of indigoidine produced, demonstrating an unusual lack of specificity. Unfortunately, constructs with the remaining thiolation domains produced almost no indigoidine and the thiolation domain for lipid synthesis could not be expressed in E. coli. These results combined with inconsistent protein expression for different PPTase/thiolation domain pairings present technical hurdles for future work. Despite these challenges, expression of catalytically active dinoflagellate proteins in E. coli is a novel and useful tool going forward.
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Nishimura S. Marine natural products targeting the eukaryotic cell membrane. J Antibiot (Tokyo) 2021; 74:769-785. [PMID: 34493848 DOI: 10.1038/s41429-021-00468-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/16/2021] [Accepted: 07/01/2021] [Indexed: 02/07/2023]
Abstract
The cell membrane, with high fluidity and alternative curvatures, maintains the robust integrity to distinguish inner and outer space of cells or organelles. Lipids are the main components of the cell membrane, but their functions are largely unknown. Even the visualization of lipids is not straightforward since modification of lipids often hampers its correct physical properties. Many natural products target cell membranes, some of which are used as pharmaceuticals and/or research tools. They show specific recognition on lipids, and thus exhibit desired pharmacological effects and unique biological phenotypes. This review is a catalog of marine natural products that target eukaryotic cell membranes. Chemical structures, biological activities, and molecular mechanisms are summarized. I hope that this review will be helpful for readers to notice the potential of marine natural products in the exploration of the function of lipids and the druggability of eukaryotic cell membranes.
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Affiliation(s)
- Shinichi Nishimura
- Department of Biotechnology, Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo, Japan.
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Jiang ZP, Sun SH, Yu Y, Mándi A, Luo JY, Yang MH, Kurtán T, Chen WH, Shen L, Wu J. Discovery of benthol A and its challenging stereochemical assignment: opening up a new window for skeletal diversity of super-carbon-chain compounds. Chem Sci 2021; 12:10197-10206. [PMID: 34447528 PMCID: PMC8336589 DOI: 10.1039/d1sc02810c] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 06/25/2021] [Indexed: 12/28/2022] Open
Abstract
Super-carbon-chain compounds (SCCCs) are marine organic molecules featuring long polyol carbon chains with numerous stereocenters. Polyol-polyene compounds (PPCs) and ladder-frame polyethers (LFPs) are two major families. It is highly challenging to establish the absolute configurations of SCCCs. In this century, few new SCCC families have been reported. Benthol A, an aberrant SCCC, was obtained from a South China Sea benthic dinoflagellate that should belong to a new taxon. Its planar structure and absolute configuration, containing thirty-five carbon stereocenters, were unambiguously established by a combination of extensive NMR spectroscopic investigations, periodate degradation of the 1,2-diol groups, ozonolysis of the carbon-carbon double bonds, J-based configurational analysis, NOE interactions, modified Mosher's MTPA ester method, and DFT-NMR 13C chemical-shift calculations aided by DP4+ statistical analysis. Benthol A displayed potent antimalarial activity against Plasmodium falciparum 3D7 parasites. This new molecule combines extraordinary structural features, particularly eight scattered ether rings on a C72 backbone chain, which places it within a new SCCC family between PPCs and LFPs, herein termed polyol-polyether compounds. This suggestion was strongly supported by principal component analysis. The discovery of benthol A does not only provide new insights into the untapped biosynthetic potential of marine dinoflagellates, but also opens up a new window for skeletal diversity of SCCCs.
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Affiliation(s)
- Zhong-Ping Jiang
- School of Pharmaceutical Sciences, Southern Medical University 1838 Guangzhou Avenue North Guangzhou 510515 P. R. China
| | - Shi-Hao Sun
- School of Pharmaceutical Sciences, Southern Medical University 1838 Guangzhou Avenue North Guangzhou 510515 P. R. China
| | - Yi Yu
- Marine Drugs Research Center, College of Pharmacy, Jinan University 601 Huangpu Avenue West Guangzhou 510632 P. R. China
| | - Attila Mándi
- Department of Organic Chemistry, University of Debrecen PO Box 400 4002 Debrecen Hungary
| | - Jiao-Yang Luo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100193 P. R. China
| | - Mei-Hua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100193 P. R. China
| | - Tibor Kurtán
- Department of Organic Chemistry, University of Debrecen PO Box 400 4002 Debrecen Hungary
| | - Wen-Hua Chen
- School of Biotechnology and Health Sciences, Wuyi University Jiangmen Guangdong Province 529020 P. R. China
| | - Li Shen
- Marine Drugs Research Center, College of Pharmacy, Jinan University 601 Huangpu Avenue West Guangzhou 510632 P. R. China
| | - Jun Wu
- School of Pharmaceutical Sciences, Southern Medical University 1838 Guangzhou Avenue North Guangzhou 510515 P. R. China
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Williams EP, Bachvaroff TR, Place AR. A Global Approach to Estimating the Abundance and Duplication of Polyketide Synthase Domains in Dinoflagellates. Evol Bioinform Online 2021; 17:11769343211031871. [PMID: 34345159 PMCID: PMC8283056 DOI: 10.1177/11769343211031871] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 06/23/2021] [Indexed: 11/17/2022] Open
Abstract
Many dinoflagellate species make toxins in a myriad of different molecular configurations but the underlying chemistry in all cases is presumably via modular synthases, primarily polyketide synthases. In many organisms modular synthases occur as discrete synthetic genes or domains within a gene that act in coordination thus forming a module that produces a particular fragment of a natural product. The modules usually occur in tandem as gene clusters with a syntenic arrangement that is often predictive of the resultant structure. Dinoflagellate genomes however are notoriously complex with individual genes present in many tandem repeats and very few synthetic modules occurring as gene clusters, unlike what has been seen in bacteria and fungi. However, modular synthesis in all organisms requires a free thiol group that acts as a carrier for sequential synthesis called a thiolation domain. We scanned 47 dinoflagellate transcriptomes for 23 modular synthase domain models and compared their abundance among 10 orders of dinoflagellates as well as their co-occurrence with thiolation domains. The total count of domain types was quite large with over thirty-thousand identified, 29 000 of which were in the core dinoflagellates. Although there were no specific trends in domain abundance associated with types of toxins, there were readily observable lineage specific differences. The Gymnodiniales, makers of long polyketide toxins such as brevetoxin and karlotoxin had a high relative abundance of thiolation domains as well as multiple thiolation domains within a single transcript. Orders such as the Gonyaulacales, makers of small polyketides such as spirolides, had fewer thiolation domains but a relative increase in the number of acyl transferases. Unique to the core dinoflagellates, however, were thiolation domains occurring alongside tetratricopeptide repeats that facilitate protein-protein interactions, especially hexa and hepta-repeats, that may explain the scaffolding required for synthetic complexes capable of making large toxins. Clustering analysis for each type of domain was also used to discern possible origins of duplication for the multitude of single domain transcripts. Single domain transcripts frequently clustered with synonymous domains from multi-domain transcripts such as the BurA and ZmaK like genes as well as the multi-ketosynthase genes, sometimes with a large degree of apparent gene duplication, while fatty acid synthesis genes formed distinct clusters. Surprisingly the acyl-transferases and ketoreductases involved in fatty acid synthesis (FabD and FabG, respectively) were found in very large clusters indicating an unprecedented degree of gene duplication for these genes. These results demonstrate a complex evolutionary history of core dinoflagellate modular synthases with domain specific duplications throughout the lineage as well as clues to how large protein complexes can be assembled to synthesize the largest natural products known.
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Affiliation(s)
- Ernest P Williams
- Institute of Marine and Environmental Technologies, University of Maryland Center for Environmental Science, Baltimore, MD, USA
| | - Tsvetan R Bachvaroff
- Institute of Marine and Environmental Technologies, University of Maryland Center for Environmental Science, Baltimore, MD, USA
| | - Allen R Place
- Institute of Marine and Environmental Technologies, University of Maryland Center for Environmental Science, Baltimore, MD, USA
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Wakamiya Y, Oishi T. Total Synthesis of Amphidinol 3. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yuma Wakamiya
- Discovery Chemistry Department, Chugai Pharmaceutical Co., Ltd
| | - Tohru Oishi
- Department of Chemistry, Faculty of Science, Kyushu University
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10
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Unlocking the Health Potential of Microalgae as Sustainable Sources of Bioactive Compounds. Int J Mol Sci 2021; 22:ijms22094383. [PMID: 33922258 PMCID: PMC8122763 DOI: 10.3390/ijms22094383] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/14/2021] [Accepted: 04/18/2021] [Indexed: 12/15/2022] Open
Abstract
Microalgae are known to produce a plethora of compounds derived from the primary and secondary metabolism. Different studies have shown that these compounds may have allelopathic, antimicrobial, and antipredator activities. In addition, in vitro and in vivo screenings have shown that several compounds have interesting bioactivities (such as antioxidant, anti-inflammatory, anticancer, and antimicrobial) for the possible prevention and treatment of human pathologies. Additionally, the enzymatic pathways responsible for the synthesis of these compounds, and the targets and mechanisms of their action have also been investigated for a few species. However, further research is necessary for their full exploitation and possible pharmaceutical and other industrial applications. Here, we review the current knowledge on the chemical characteristics, biological activities, mechanism of action, and the enzymes involved in the synthesis of microalgal metabolites with potential benefits for human health.
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Amphidinol 3 preferentially binds to cholesterol in disordered domains and disrupts membrane phase separation. Biochem Biophys Rep 2021; 26:100941. [PMID: 33614998 PMCID: PMC7881217 DOI: 10.1016/j.bbrep.2021.100941] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 01/29/2021] [Accepted: 01/30/2021] [Indexed: 11/20/2022] Open
Abstract
Amphidinol 3 (AM3), a polyhydroxy-polyene metabolite from the dinoflagellate Amphidinium klebsii, possesses potent antifungal activity. AM3 is known to interact directly with membrane sterols and permeabilize membranes by forming pores. Because AM3 binds to sterols such as cholesterol and ergosterol, it can be assumed that AM3 has some impact on lipid rafts, which are membrane domains rich in sphingolipids and cholesterol. Hence, we first examined the effect of AM3 on phase-separated liposomes, in which raft-like ordered and non-raft-like disordered domains are segregated. Consequently, AM3 disrupted the phase separation at 22 μM, as in the case of methyl-β-cyclodextrin, a well-known raft-disrupter that extracts sterol from membranes. The surface plasmon resonance measurements and dye leakage assays show that AM3 preferentially recognizes cholesterol in the disordered membrane, which may reflect a weaker lipid-cholesterol interaction in disordered membrane than in ordered membrane. Finally, to gain insight into the AM3-induced coalescence of membrane phases, we measured membrane fluidity using fluorescence correlation spectroscopy, demonstrating that AM3 significantly increases the order of disordered phase. Together, AM3 preferentially binds to the disordered phase rather than the ordered phase, and enhances the order of the disordered phase, consequently blending the separated phases.
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Shen L, Li WS, Yu Y, Sun SH, Wu J. A Water-Soluble 5/14-Carbobicyclic Steroid with a trans-9,11-Epoxy Ring from the Marine Dinoflagellate Amphidinium gibbosum: Insights into Late-Stage Diversification of Steroids. Org Lett 2021; 23:837-841. [PMID: 33475383 DOI: 10.1021/acs.orglett.0c04075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Gibbosterol A (1), a water-soluble 14-membered carbocyclic steroid with a twisted trans-9,11-epoxy ring, was discovered from the South China Sea dinoflagellate, Amphidinium gibbosum, together with its acid-induced cyclization product 2. It exhibits marked agonistic effects against human pregnane-X-receptor in a dose-dependent manner within the concentration range of 100 nM to 10 μM. Its 5/14-carbobicyclic nucleus is proposed to be originated from late-stage oxidative cleavage of the C5-C10 and C8-C9 bonds of β-sitosterol.
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Affiliation(s)
- Li Shen
- Marine Drugs Research Center, College of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, P.R. China
| | - Wan-Shan Li
- School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, P.R. China.,Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, P.R. China
| | - Yi Yu
- Marine Drugs Research Center, College of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, P.R. China
| | - Shi-Hao Sun
- School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, P.R. China
| | - Jun Wu
- School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, P.R. China
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13
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A Polyol-Polyol Super-Carbon-Chain Compound Containing Thirty-Six Carbon Stereocenters from the Dinoflagellate Amphidinium gibbosum: Absolute Configuration and Multi-Segment Modification. Mar Drugs 2020; 18:md18120590. [PMID: 33255887 PMCID: PMC7759953 DOI: 10.3390/md18120590] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/21/2020] [Accepted: 11/22/2020] [Indexed: 12/24/2022] Open
Abstract
A super-carbon-chain compound, named gibbosol C, featuring a polyoxygenated C70-linear-carbon-chain backbone encompassing two acyclic polyol chains, was obtained from the South China Sea dinoflagellate Amphidinium gibbosum. Its planar structure was elucidated by extensive NMR investigations, whereas its absolute configurations, featuring the presence of 36 carbon stereocenters and 30 hydroxy groups, were successfully established by comparison of NMR data of the ozonolyzed products with those of gibbosol A, combined with J-based configuration analysis, Kishi’s universal NMR database, and the modified Mosher’s MTPA ester method. Multi-segment modification was revealed as the smart biosynthetic strategy for the dinoflagellate to create remarkable super-carbon-chain compounds with structural diversity.
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Oishi T. Structure Determination, Chemical Synthesis, and Evaluation of Biological Activity of Super Carbon Chain Natural Products. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200151] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Tohru Oishi
- Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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15
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Umeno K, Oishi T. Synthesis and Stereochemistry of the C30−C63 Section of Karlotoxin 2. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Keitaro Umeno
- Department of Chemistry Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Tohru Oishi
- Department of Chemistry Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
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16
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Matsuda M, Kubota Y, Funabiki K, Uemura D, Inuzuka T. Amdigenol D, a long carbon-chain polyol, isolated from the marine dinoflagellate Amphidinium sp. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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LC-MS/MS Method Development for the Discovery and Identification of Amphidinols Produced by Amphidinium. Mar Drugs 2020; 18:md18100497. [PMID: 33003497 PMCID: PMC7601433 DOI: 10.3390/md18100497] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 11/17/2022] Open
Abstract
Amphidinols are polyketides produced by dinoflagellates suspected of causing fish kills. Here, we demonstrate a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the identification and quantification of amphidinols (AM). Novel AM were detected by neutral loss (NL) scan and then quantified together with known AM by selection reaction monitoring (SRM). With the new method, AM were detected in four of eight analyzed strains with a maximum of 3680 fg toxin content per cell. In total, sixteen novel AM were detected by NL scan and characterized via their fragmentation patterns. Of these, two substances are glycosylated forms. This is the first detection of glycosylated AM.
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18
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Cusick KD, Widder EA. Bioluminescence and toxicity as driving factors in harmful algal blooms: Ecological functions and genetic variability. HARMFUL ALGAE 2020; 98:101850. [PMID: 33129462 DOI: 10.1016/j.hal.2020.101850] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 05/29/2020] [Accepted: 06/02/2020] [Indexed: 06/11/2023]
Abstract
Dinoflagellates are an ecologically important group of marine microbial eukaryotes with a remarkable array of adaptive strategies. It is ironic that two of the traits for which dinoflagellates are best known, toxin production and bioluminescence, are rarely linked when considering the ecological significance of either. Although dinoflagellate species that form some of the most widespread and frequent harmful algal blooms (HABs) are bioluminescent, the molecular and eco-evolutionary associations between these two traits has received little attention. Here, the major themes of biochemistry and genetics, ecological functions, signaling mechanisms, and evolution are addressed, with parallels and connections drawn between the two. Of the 17 major classes of dinoflagellate toxins, only two are produced by bioluminescent species: saxitoxin (STX) and yessotoxin. Of these, STX has been extensively studied, including the identification of the STX biosynthetic genes. While numerous theories have been put forward as to the eco-evolutionary roles of both bioluminescence and toxicity, a general consensus is that both function as grazing deterrents. Thus, both bioluminescence and toxicity may aid in HAB initiation as they alleviate grazing pressure on the HAB species. A large gap in our understanding is the genetic variability among natural bloom populations, as both toxic and non-toxic strains have been isolated from the same geographic location. The same applies to bioluminescence, as there exist both bioluminescent and non-bioluminescent strains of the same species. Recent evidence demonstrating that blooms are not monoclonal events necessitates a greater level of understanding as to the genetic variability of these traits among sub-populations as well as the mechanisms by which cells acquire or lose the trait, as sequence analysis of STX+ and STX- species indicate the key gene required for toxicity is lost rather than gained. While the extent of genetic variability for both bioluminescence and toxicity among natural HAB sub-populations remains unknown, it is an area that needs to be explored in order to gain greater insights into the molecular mechanisms and environmental parameters driving HAB evolution.
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Affiliation(s)
- Kathleen D Cusick
- University of Maryland Baltimore County, Department of Biological Sciences, 1000 Hilltop Circle, Baltimore, MD 21250, United States.
| | - Edith A Widder
- Ocean Research and Conservation Association, 1420 Seaway Dr, Fort Pierce, FL 34949, United States.
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Li W, Yan R, Yu Y, Shi Z, Mándi A, Shen L, Kurtán T, Wu J. Determination of the Absolute Configuration of Super‐Carbon‐Chain Compounds by a Combined Chemical, Spectroscopic, and Computational Approach: Gibbosols A and B. Angew Chem Int Ed Engl 2020; 59:13028-13036. [PMID: 32343023 DOI: 10.1002/anie.202004358] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/15/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Wan‐Shan Li
- School of Pharmaceutical Sciences Southern Medical University 1838 Guangzhou Avenue North Guangzhou 510515 China
| | - Ren‐Jie Yan
- School of Pharmaceutical Sciences Southern Medical University 1838 Guangzhou Avenue North Guangzhou 510515 China
| | - Yi Yu
- Marine Drugs Research Center College of Pharmacy Jinan University 601 Huangpu Avenue West Guangzhou 510632 China
| | - Zhi Shi
- College of Life Science and Technology Jinan University 601 Huangpu Avenue West Guangzhou 510632 China
| | - Attila Mándi
- Department of Organic Chemistry University of Debrecen PO Box 400 4002 Debrecen Hungary
| | - Li Shen
- Marine Drugs Research Center College of Pharmacy Jinan University 601 Huangpu Avenue West Guangzhou 510632 China
| | - Tibor Kurtán
- Department of Organic Chemistry University of Debrecen PO Box 400 4002 Debrecen Hungary
| | - Jun Wu
- School of Pharmaceutical Sciences Southern Medical University 1838 Guangzhou Avenue North Guangzhou 510515 China
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20
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Li W, Yan R, Yu Y, Shi Z, Mándi A, Shen L, Kurtán T, Wu J. Determination of the Absolute Configuration of Super‐Carbon‐Chain Compounds by a Combined Chemical, Spectroscopic, and Computational Approach: Gibbosols A and B. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004358] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Wan‐Shan Li
- School of Pharmaceutical Sciences Southern Medical University 1838 Guangzhou Avenue North Guangzhou 510515 China
| | - Ren‐Jie Yan
- School of Pharmaceutical Sciences Southern Medical University 1838 Guangzhou Avenue North Guangzhou 510515 China
| | - Yi Yu
- Marine Drugs Research Center College of Pharmacy Jinan University 601 Huangpu Avenue West Guangzhou 510632 China
| | - Zhi Shi
- College of Life Science and Technology Jinan University 601 Huangpu Avenue West Guangzhou 510632 China
| | - Attila Mándi
- Department of Organic Chemistry University of Debrecen PO Box 400 4002 Debrecen Hungary
| | - Li Shen
- Marine Drugs Research Center College of Pharmacy Jinan University 601 Huangpu Avenue West Guangzhou 510632 China
| | - Tibor Kurtán
- Department of Organic Chemistry University of Debrecen PO Box 400 4002 Debrecen Hungary
| | - Jun Wu
- School of Pharmaceutical Sciences Southern Medical University 1838 Guangzhou Avenue North Guangzhou 510515 China
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21
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Yan M, Leung PTY, Gu J, Lam VTT, Murray JS, Harwood DT, Wai TC, Lam PKS. Hemolysis associated toxicities of benthic dinoflagellates from Hong Kong waters. MARINE POLLUTION BULLETIN 2020; 155:111114. [PMID: 32469761 DOI: 10.1016/j.marpolbul.2020.111114] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 03/20/2020] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
Benthic dinoflagellates produce a diverse range of phycotoxins, which are responsible for intoxication events in marine fauna. This study assessed the hemolysis associated toxicities of six species of benthic dinoflagellates from the genera Coolia, Fukuyoa, Amphidinium and Prorocentrum. Results demonstrated that Amphidinium carterae, Coolia tropicalis and Fukuyoa ruetzleri were the three most toxic species, while Prorocentrum cf. lima did not have significant hemolytic effect. Grouper samples (Cephalopholis boenak) were more tolerant to the hemolytic algae than the blackhead seabream (Acanthopagrus schlegelii), with decreased heart rate and blood flow being observed in medaka larvae after exposure to toxic algal extracts. LC-MS/MS analysis detected a gambierone analogue called 44-methylgambierone produced by the C. tropicalis isolate. This analogue was also detected in the F. ruetzleri isolate. This study provided new information on the hemolysis associated toxicities of local toxic benthic dinoflagellates, which contributes to better understanding of their emerging threats to marine fauna and reef systems in Hong Kong.
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Affiliation(s)
- Meng Yan
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, China
| | - Priscilla T Y Leung
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, China.
| | - Jiarui Gu
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China; Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Veronica T T Lam
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China
| | - J Sam Murray
- Cawthron Institute, Nelson, New Zealand; New Zealand Food Safety Science and Research Centre, Massey University, Palmerston North, New Zealand
| | - D Tim Harwood
- Cawthron Institute, Nelson, New Zealand; New Zealand Food Safety Science and Research Centre, Massey University, Palmerston North, New Zealand
| | - Tak-Cheung Wai
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, China
| | - Paul K S Lam
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, China; Department of Chemistry, City University of Hong Kong, Hong Kong, China.
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22
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Wakamiya Y, Ebine M, Matsumori N, Oishi T. Total Synthesis of Amphidinol 3: A General Strategy for Synthesizing Amphidinol Analogues and Structure-Activity Relationship Study. J Am Chem Soc 2020; 142:3472-3478. [PMID: 31986250 DOI: 10.1021/jacs.9b11789] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Amphidinol 3 (AM3) is a potent antifungal produced by the dinoflagellate Amphidinium klebsii. It was difficult to determine the absolute configuration of AM3 by using the scarce natural product due to the presence of numerous stereogenic centers on the acyclic carbon chain. Since the absolute configuration was partially determined on the basis of insufficient evidence, the originally proposed structure has been revised three times. Although recent progress on structure determination by computational analysis is remarkable, total synthesis is still the most reliable way to confirm structures. The first total synthesis of AM3 was achieved via expeditious assembly of three components in five steps, confirming the revised structure of AM3 after more than 20 years since its first discovery. The established synthetic route would be a general strategy for synthesizing amphidinol congeners. An artificial and simplified analogue of AM3, which elicited antifungal activity comparable to that of AM3, was designed and synthesized. This is the first example of a biologically active artificial analogue possessing a shorter polyol moiety, providing insight on the antifungal mode-of-action.
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Affiliation(s)
- Yuma Wakamiya
- Department of Chemistry, Faculty and Graduate School of Science , Kyushu University , 744 Motooka , Nishi-ku , Fukuoka 819-0395 , Japan
| | - Makoto Ebine
- Department of Chemistry, Faculty and Graduate School of Science , Kyushu University , 744 Motooka , Nishi-ku , Fukuoka 819-0395 , Japan
| | - Nobuaki Matsumori
- Department of Chemistry, Faculty and Graduate School of Science , Kyushu University , 744 Motooka , Nishi-ku , Fukuoka 819-0395 , Japan
| | - Tohru Oishi
- Department of Chemistry, Faculty and Graduate School of Science , Kyushu University , 744 Motooka , Nishi-ku , Fukuoka 819-0395 , Japan
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Nishimura S, Matsumori N. Chemical diversity and mode of action of natural products targeting lipids in the eukaryotic cell membrane. Nat Prod Rep 2020; 37:677-702. [PMID: 32022056 DOI: 10.1039/c9np00059c] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Covering: up to 2019Nature furnishes bioactive compounds (natural products) with complex chemical structures, yet with simple, sophisticated molecular mechanisms. When natural products exhibit their activities in cells or bodies, they first have to bind or react with a target molecule in/on the cell. The cell membrane is a major target for bioactive compounds. Recently, our understanding of the molecular mechanism of interactions between natural products and membrane lipids progressed with the aid of newly-developed analytical methods. New technology reconnects old compounds with membrane lipids, while new membrane-targeting molecules are being discovered through the screening for antimicrobial potential of natural products. This review article focuses on natural products that bind to eukaryotic membrane lipids, and includes clinically important molecules and key research tools. The chemical diversity of membrane-targeting natural products and the molecular basis of lipid recognition are described. The history of how their mechanism was unveiled, and how these natural products are used in research are also mentioned.
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Affiliation(s)
- Shinichi Nishimura
- Department of Biotechnology, Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo 113-8657, Japan.
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24
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Wan X, Yao G, Liu Y, Chen J, Jiang H. Research Progress in the Biosynthetic Mechanisms of Marine Polyether Toxins. Mar Drugs 2019; 17:E594. [PMID: 31652489 PMCID: PMC6835853 DOI: 10.3390/md17100594] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 12/28/2022] Open
Abstract
Marine polyether toxins, mainly produced by marine dinoflagellates, are novel, complex, and diverse natural products with extensive toxicological and pharmacological effects. Owing to their harmful effects during outbreaks of marine red tides, as well as their potential value for the development of new drugs, marine polyether toxins have been extensively studied, in terms of toxicology, pharmacology, detection, and analysis, structural identification, as well as their biosynthetic mechanisms. Although the biosynthetic mechanisms of marine polyether toxins are still unclear, certain progress has been made. In this review, research progress and current knowledge on the biosynthetic mechanisms of polyether toxins are summarized, including the mechanisms of carbon skeleton deletion, pendant alkylation, and polyether ring formation, along with providing a summary of mined biosynthesis-related genes. Finally, future research directions and applications of marine polyether toxins are discussed.
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Affiliation(s)
- Xiukun Wan
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Ge Yao
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Yanli Liu
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Jisheng Chen
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Hui Jiang
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
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25
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Gárate-Lizárraga I, González-Armas R, Verdugo-Díaz G, Okolodkov YB, Pérez-Cruz B, Díaz-Ortíz JA. Seasonality of the dinoflagellate Amphidinium cf. carterae (Dinophyceae: Amphidiniales) in Bahía de la Paz, Gulf of California. MARINE POLLUTION BULLETIN 2019; 146:532-541. [PMID: 31426190 DOI: 10.1016/j.marpolbul.2019.06.073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 06/27/2019] [Accepted: 06/29/2019] [Indexed: 06/10/2023]
Abstract
Monthly phytoplankton samples were collected from January 2013 to December 2015 at a fixed sampling site in Bahía de La Paz, Gulf of California. During this study 26 samplings were Amphidinium cf. carterae positive. The highest densities of A. cf. carterae (754.2 × 103 to 1022.4 × 103 cells L-1) were recorded during a bloom detected in January 2015 when water temperatures were 20-22 °C. This dinoflagellate showed a well-marked seasonal variation, being found mainly from November to April. Blooms of the species were linked to the upwelled water due to the northwesterly wind. Cysts surrounded by a mucilaginous membrane of A. cf. carterae were found. We also observed these hyaline cysts inside zooplankton fecal pellets. Other benthic/tychoplanktonic dinoflagellates and diatoms, including some potentially toxic species were also found. The occurrence of blooms of A. cf. carterae in Bahía de La Paz could represent a risk for aquaculture activities and human health.
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Affiliation(s)
- Ismael Gárate-Lizárraga
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas (CICIMAR-IPN), Av. IPN s/n, Playa Palo de Santa Rita, C.P. 23096 La Paz, Baja California Sur, Mexico.
| | - Rogelio González-Armas
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas (CICIMAR-IPN), Av. IPN s/n, Playa Palo de Santa Rita, C.P. 23096 La Paz, Baja California Sur, Mexico
| | - Gerardo Verdugo-Díaz
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas (CICIMAR-IPN), Av. IPN s/n, Playa Palo de Santa Rita, C.P. 23096 La Paz, Baja California Sur, Mexico
| | - Yuri B Okolodkov
- Universidad Veracruzana, Instituto de Ciencias Marinas y Pesquerías (ICIMAP-UV), Calle Mar Mediterráneo 314, Costa Verde, C.P. 94294 Boca del Río, Veracruz, Mexico
| | - Beatriz Pérez-Cruz
- Laboratorio Estatal de Salud Pública "Dr. Galo Soberón y Parra", Boulevard Vicente Guerrero esq. Juan R. Escudero, Ciudad Renacimiento, C.P. 39715 Acapulco, Guerrero, Mexico
| | - Jesús Antonio Díaz-Ortíz
- Laboratorio Estatal de Salud Pública "Dr. Galo Soberón y Parra", Boulevard Vicente Guerrero esq. Juan R. Escudero, Ciudad Renacimiento, C.P. 39715 Acapulco, Guerrero, Mexico
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26
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Abreu AC, Molina-Miras A, Aguilera-Sáez LM, López-Rosales L, Cerón-García MDC, Sánchez-Mirón A, Olmo-García L, Carrasco-Pancorbo A, García-Camacho F, Molina-Grima E, Fernández I. Production of Amphidinols and Other Bioproducts of Interest by the Marine Microalga Amphidinium carterae Unraveled by Nuclear Magnetic Resonance Metabolomics Approach Coupled to Multivariate Data Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:9667-9682. [PMID: 31415166 DOI: 10.1021/acs.jafc.9b02821] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This study assessed the feasibility of an NMR metabolomics approach coupled to multivariate data analysis to monitor the naturally present or stresses-elicited metabolites from a long-term (>170 days) culture of the dinoflagellate marine microalgae Amphidinium carterae grown in a fiberglass paddlewheel-driven raceway photobioreactor. Metabolic contents, in particular, in two members of the amphidinol family, amphidinol A and its 7-sulfate derivative amphidinol B (referred as APDs), and other compounds of interest (fatty acids, carotenoids, oxylipins, etc.) were evaluated by altering concentration levels of the f/2 medium nutrients and daily mean irradiance. Operating with a 24 h sinusoidal light cycle allowed a 3-fold increase in APD production, which was also detected by an increase in hemolytic activity of the methanolic extract of A. carterae biomass. The presence of APDs was consistent with the antitumoral activity measured in the methanolic extracts of the biomass. Increased daily irradiance was accompanied by a general decrease in pigments and an increase in SFAs (saturated fatty acids), MUFAs (monounsaturated fatty acids), and DHA (docosahexaenoic acid), while increased nutrient availability lead to an increase in sugar, amino acid, and PUFA ω-3 contents and pigments and a decrease in SFAs and MUFAs. NMR-based metabolomics is shown to be a fast and suitable method to accompany the production of APD and bioactive compounds without the need of tedious isolation methods and bioassays. The two APD compounds were chemically identified by spectroscopic NMR and spectrometric ESI-IT MS (electrospray ionization ion trap mass spectrometry) and ESI-TOF MS (ESI time-of-flight mass spectrometry) methods.
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Affiliation(s)
- Ana Cristina Abreu
- Department of Chemistry and Physics, Research Centre CIAIMBITAL , University of Almería , Ctra. Sacramento, s/n , 04120 Almería , Spain
| | - Alejandro Molina-Miras
- Department of Chemical Engineering, Research Centre CIAIMBITAL , University of Almería , 04120 Almería , Spain
| | - Luis M Aguilera-Sáez
- Department of Chemistry and Physics, Research Centre CIAIMBITAL , University of Almería , Ctra. Sacramento, s/n , 04120 Almería , Spain
| | - Lorenzo López-Rosales
- Department of Chemical Engineering, Research Centre CIAIMBITAL , University of Almería , 04120 Almería , Spain
| | | | - Asterio Sánchez-Mirón
- Department of Chemical Engineering, Research Centre CIAIMBITAL , University of Almería , 04120 Almería , Spain
| | - Lucía Olmo-García
- Department of Analytical Chemistry, Faculty of Sciences , University of Granada , Ave. Fuentenueva s/n , 18071 Granada , Spain
| | - Alegría Carrasco-Pancorbo
- Department of Analytical Chemistry, Faculty of Sciences , University of Granada , Ave. Fuentenueva s/n , 18071 Granada , Spain
| | - Francisco García-Camacho
- Department of Chemical Engineering, Research Centre CIAIMBITAL , University of Almería , 04120 Almería , Spain
| | - Emilio Molina-Grima
- Department of Chemical Engineering, Research Centre CIAIMBITAL , University of Almería , 04120 Almería , Spain
| | - Ignacio Fernández
- Department of Chemistry and Physics, Research Centre CIAIMBITAL , University of Almería , Ctra. Sacramento, s/n , 04120 Almería , Spain
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Wakamiya Y, Ebine M, Murayama M, Omizu H, Matsumori N, Murata M, Oishi T. Synthesis and Stereochemical Revision of the C31–C67 Fragment of Amphidinol 3. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712167] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yuma Wakamiya
- Department of Chemistry, Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Makoto Ebine
- Department of Chemistry, Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Mariko Murayama
- Department of Chemistry, Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Hiroyuki Omizu
- Department of Chemistry, Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Nobuaki Matsumori
- Department of Chemistry, Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Michio Murata
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikeneyama, Toyonaka Osaka 560-0043 Japan
| | - Tohru Oishi
- Department of Chemistry, Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
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28
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Wakamiya Y, Ebine M, Murayama M, Omizu H, Matsumori N, Murata M, Oishi T. Synthesis and Stereochemical Revision of the C31–C67 Fragment of Amphidinol 3. Angew Chem Int Ed Engl 2018; 57:6060-6064. [DOI: 10.1002/anie.201712167] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 03/04/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Yuma Wakamiya
- Department of Chemistry, Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Makoto Ebine
- Department of Chemistry, Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Mariko Murayama
- Department of Chemistry, Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Hiroyuki Omizu
- Department of Chemistry, Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Nobuaki Matsumori
- Department of Chemistry, Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Michio Murata
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikeneyama, Toyonaka Osaka 560-0043 Japan
| | - Tohru Oishi
- Department of Chemistry, Faculty and Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
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29
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A pilot-scale bioprocess to produce amphidinols from the marine microalga Amphidinium carterae: Isolation of a novel analogue. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.01.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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30
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Satake M, Cornelio K, Hanashima S, Malabed R, Murata M, Matsumori N, Zhang H, Hayashi F, Mori S, Kim JS, Kim CH, Lee JS. Structures of the Largest Amphidinol Homologues from the Dinoflagellate Amphidinium carterae and Structure-Activity Relationships. JOURNAL OF NATURAL PRODUCTS 2017; 80:2883-2888. [PMID: 29120640 DOI: 10.1021/acs.jnatprod.7b00345] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Amphidinols are polyketide metabolites produced by marine dinoflagellates and are chiefly composed of a long linear chain with polyol groups and polyolefins. Two new homologues, amphidinols 20 (AM20, 1) and 21 (AM21, 2), were isolated from Amphidinium carterae collected in Korea. Their structures were elucidated by detailed NMR analyses as amphidinol 6-type compounds with remarkably long polyol chains. Amphidinol 21 (2) has the longest linear structure among the amphidinol homologues reported so far. The congeners, particularly amphidinol 21 (2), showed weaker activity in hemolysis and antifungal assays compared to known amphidinols.
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Affiliation(s)
- Masayuki Satake
- Department of Chemistry, School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kimberly Cornelio
- Department of Chemistry, Graduate School of Science, Osaka University , 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- JST ERATO Lipid Active Structure Project , 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Shinya Hanashima
- Department of Chemistry, Graduate School of Science, Osaka University , 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Raymond Malabed
- Department of Chemistry, Graduate School of Science, Osaka University , 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Michio Murata
- Department of Chemistry, Graduate School of Science, Osaka University , 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- JST ERATO Lipid Active Structure Project , 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Nobuaki Matsumori
- Department of Chemistry, Graduate School of Sciences, Kyushu University , 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Huiping Zhang
- RIKEN Center for Life Science Technology , 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Fumiaki Hayashi
- RIKEN Center for Life Science Technology , 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Shoko Mori
- Bioorganic Research Institute, Suntory Foundation for Life Sciences , Sikadai, Seika-cho, Soraku-gun, Kyoto 619-0284 Japan
| | - Jong Souk Kim
- Department of Marine Bio-materials & Aquaculture, Pukyong National University , Busan 608-737, Korea
| | - Chang-Hoon Kim
- Department of Marine Bio-materials & Aquaculture, Pukyong National University , Busan 608-737, Korea
| | - Jong-Soo Lee
- Department of Seafood and Aquaculture Science, College of Marine Science, Gyeongsang National University , Tongyeong, Kyungnam 650-160, Korea
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31
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Espiritu RA. Membrane permeabilizing action of amphidinol 3 and theonellamide A in raft-forming lipid mixtures. ACTA ACUST UNITED AC 2017; 72:43-48. [PMID: 27159918 DOI: 10.1515/znc-2016-0043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 04/11/2016] [Indexed: 11/15/2022]
Abstract
Amphidinol 3 (AM3) and theonellamide A (TNM-A) are potent antifungal compounds produced by the dinoflagellate Amphidinium klebsii and the sponge Theonella spp., respectively. Both of these metabolites have been demonstrated to interact with membrane lipids ultimately resulting in a compromised bilayer integrity. In this report, the activity of AM3 and TNM-A in ternary lipid mixtures composed of 1-palmitoyl-2-oleoyl-sn-glycerol-3-phosphocholine (POPC):brain sphingomyelin:cholesterol at a mole ratio of 1:1:1 or 3:1:1 exhibiting lipid rafts coexistence is presented. It was found that AM3 has a more extensive membrane permeabilizing activity compared with TNM-A in these membrane mimics, which was almost complete at 15 μM. The extent of their activity nevertheless is similar to the previously reported binary system of POPC and cholesterol, suggesting that phase separation has neither beneficial nor detrimental effects in their ability to disrupt the lipid bilayer.
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Affiliation(s)
- Rafael A Espiritu
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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32
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Lauritano C, De Luca D, Ferrarini A, Avanzato C, Minio A, Esposito F, Ianora A. De novo transcriptome of the cosmopolitan dinoflagellate Amphidinium carterae to identify enzymes with biotechnological potential. Sci Rep 2017; 7:11701. [PMID: 28916825 PMCID: PMC5601461 DOI: 10.1038/s41598-017-12092-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 09/04/2017] [Indexed: 01/17/2023] Open
Abstract
Dinoflagellates are phytoplanktonic organisms found in both freshwater and marine habitats. They are often studied because related to harmful algal blooms but they are also known to produce bioactive compounds for the treatment of human pathologies. The aim of this study was to sequence the full transcriptome of the dinoflagellate Amphidinium carterae in both nitrogen-starved and -replete culturing conditions (1) to evaluate the response to nitrogen starvation at the transcriptional level, (2) to look for possible polyketide synthases (PKSs) in the studied clone (genes that may be involved in the synthesis of bioactive compounds), (3) if present, to evaluate if nutrient starvation can influence PKS expression, (4) to look for other possible enzymes of biotechnological interest and (5) to test strain cytotoxicity on human cell lines. Results showed an increase in nitrogen metabolism and stress response in nitrogen-starved cells and confirmed the presence of a type I β-ketosynthase. In addition, L-asparaginase (used for the treatment of Leukemia and for acrylamide reduction in food industries) and cellulase (useful for biofuel production and other industrial applications) have been identified for the first time in this species, giving new insights into possible biotechnological applications of dinoflagellates.
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Affiliation(s)
- Chiara Lauritano
- Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy.
| | - Daniele De Luca
- Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
| | - Alberto Ferrarini
- Università degli Studi di Verona, Ca' Vignal 1, Strada Le Grazie 15, 37134, Verona, Italy
| | - Carla Avanzato
- Università degli Studi di Verona, Ca' Vignal 1, Strada Le Grazie 15, 37134, Verona, Italy
| | - Andrea Minio
- Università degli Studi di Verona, Ca' Vignal 1, Strada Le Grazie 15, 37134, Verona, Italy
| | - Francesco Esposito
- Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
| | - Adrianna Ianora
- Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
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33
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Karafas S, Teng ST, Leaw CP, Alves-de-Souza C. An evaluation of the genus Amphidinium (Dinophyceae) combining evidence from morphology, phylogenetics, and toxin production, with the introduction of six novel species. HARMFUL ALGAE 2017; 68:128-151. [PMID: 28962975 DOI: 10.1016/j.hal.2017.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 08/01/2017] [Accepted: 08/01/2017] [Indexed: 06/07/2023]
Abstract
The genus Amphidinium is an important group of athecated dinoflagellates because of its high abundance in marine habitats, its member's ability to live in a variety of environmental conditions and ability to produce toxins. Furthermore, the genus is of particular interest in the biotechnology field for its potential in the pharmaceutical arena. Taxonomically the there is a history of complication and confusion over the proper identities and placements of Amphidinium species due to high genetic variability coupled with high morphological conservation. Thirteen years has passed since the most recent review of the group, and while many issues were resolved, some remain. The present study used microscopy, phylogenetics of the 28S region of rDNA, secondary structure of the ITS2 region of rDNA, compensatory base change data, and cytotoxicity data from Amphidinium strains collected world-wide to elucidate remaining confusion. This holistic approach using multiple lines of evidence resulted in a more comprehensive understanding of the morphological, ecological, and genetic characteristics that are attributed to organisms belonging to Amphidinium, including six novel species: A. fijiensis, A. magnum, A. paucianulatum, A. pseudomassartii, A. theodori, and A. tomasii.
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Affiliation(s)
- Sarah Karafas
- Algal Resources Collection, University of North Carolina Wilmington, Marine Biotechnology Facility, 5600 Marvin K. Moss Ln., Wilmington, NC 28403, USA.
| | - Sing Tung Teng
- Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia.
| | - Chui Pin Leaw
- Bachok Marine Research Station, Institute of Ocean and Earth Sciences, University of Malaya, Bachok, 16310 Kelantan, Malaysia.
| | - Catharina Alves-de-Souza
- Algal Resources Collection, University of North Carolina Wilmington, Marine Biotechnology Facility, 5600 Marvin K. Moss Ln., Wilmington, NC 28403, USA.
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HPLC-HRMS Quantification of the Ichthyotoxin Karmitoxin from Karlodinium armiger. Mar Drugs 2017; 15:md15090278. [PMID: 28858210 PMCID: PMC5618417 DOI: 10.3390/md15090278] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 08/21/2017] [Accepted: 08/27/2017] [Indexed: 11/17/2022] Open
Abstract
Being able to quantify ichthyotoxic metabolites from microalgae allows for the determination of ecologically-relevant concentrations that can be simulated in laboratory experiments, as well as to investigate bioaccumulation and degradation. Here, the ichthyotoxin karmitoxin, produced by Karlodinium armiger, was quantified in laboratory-grown cultures using high-performance liquid chromatography (HPLC) coupled to electrospray ionisation high-resolution time-of-flight mass spectrometry (HRMS). Prior to the quantification of karmitoxin, a standard of karmitoxin was purified from K. armiger cultures (80 L). The standard was quantified by fluorescent derivatisation using Waters AccQ-Fluor reagent and derivatised fumonisin B₁ and fumonisin B₂ as standards, as each contain a primary amine. Various sample preparation methods for whole culture samples were assessed, including six different solid phase extraction substrates. During analysis of culture samples, MS source conditions were monitored with chloramphenicol and valinomycin as external standards over prolonged injection sequences (>12 h) and karmitoxin concentrations were determined using the response factor of a closely eluting iturin A2 internal standard. Using this method the limit of quantification was 0.11 μg·mL-1, and the limit of detection was found to be 0.03 μg·mL-1. Matrix effects were determined with the use of K. armiger cultures grown with 13C-labelled bicarbonate as the primary carbon source.
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The Missing Piece in Biosynthesis of Amphidinols: First Evidence of Glycolate as a Starter Unit in New Polyketides from Amphidinium carterae. Mar Drugs 2017; 15:md15060157. [PMID: 28561749 PMCID: PMC5484107 DOI: 10.3390/md15060157] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 05/22/2017] [Accepted: 05/25/2017] [Indexed: 11/23/2022] Open
Abstract
Two new members of the amphidinol family, amphidinol A (1) and its 7-sulfate derivative amphidinol B (2), were isolated from a strain of Amphidinium carterae of Lake Fusaro, near Naples (Italy), and chemically identified by spectroscopic and spectrometric methods. Amphidinol A showed antifungal activity against Candida albicans (MIC = 19 µg/mL). Biosynthetic experiments with stable isotope-labelled acetate allowed defining the elongation process in 1. For the first time the use of glycolate as a starter unit in the polyketide biosynthesis of amphidinol metabolites was unambiguously demonstrated.
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Rasmussen SA, Binzer SB, Hoeck C, Meier S, de Medeiros LS, Andersen NG, Place A, Nielsen KF, Hansen PJ, Larsen TO. Karmitoxin: An Amine-Containing Polyhydroxy-Polyene Toxin from the Marine Dinoflagellate Karlodinium armiger. JOURNAL OF NATURAL PRODUCTS 2017; 80:1287-1293. [PMID: 28379705 PMCID: PMC6446557 DOI: 10.1021/acs.jnatprod.6b00860] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Marine algae from the genus Karlodinium are known to be involved in fish-killing events worldwide. Here we report for the first time the chemistry and bioactivity of a natural product from the newly described mixotrophic dinoflagellate Karlodinium armiger. Our work describes the isolation and structural characterization of a new polyhydroxy-polyene named karmitoxin. The structure elucidation work was facilitated by use of 13C enrichment and high-field 2D NMR spectroscopy, where 1H-13C long-range correlations turned out to be very informative. Karmitoxin is structurally related to amphidinols and karlotoxins; however it differs by containing the longest carbon-carbon backbone discovered for this class of compounds, as well as a primary amino group. Karmitoxin showed potent nanomolar cytotoxic activity in an RTgill-W1 cell assay as well as rapid immobilization and eventual mortality of the copepod Acartia tonsa, a natural grazer of K. armiger.
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Affiliation(s)
- Silas Anselm Rasmussen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads Building 221, DK-2800 Kgs. Lyngby, Denmark
| | - Sofie Bjørnholt Binzer
- Marine Biological Section, Department of Biology, University of Copenhagen, Strandpromenaden 5, DK-3000 Helsingør, Denmark
| | - Casper Hoeck
- Department of Chemistry, Technical University of Denmark, Kemitorvet Building 207, DK-2800 Kgs. Lyngby, Denmark
| | - Sebastian Meier
- Department of Chemistry, Technical University of Denmark, Kemitorvet Building 207, DK-2800 Kgs. Lyngby, Denmark
| | | | - Nikolaj Gedsted Andersen
- National Veterinary Institute, Technical University of Denmark, Bülowsvej 27, DK-1870 Frederiksberg C, Denmark
| | - Allen Place
- University of Maryland Center for Environmental Research, Institute of Marine and Environmental Technology, 701 E. Pratt Street, Baltimore, Maryland 21202, United States
| | - Kristian Fog Nielsen
- Marine Biological Section, Department of Biology, University of Copenhagen, Strandpromenaden 5, DK-3000 Helsingør, Denmark
| | - Per Juel Hansen
- Marine Biological Section, Department of Biology, University of Copenhagen, Strandpromenaden 5, DK-3000 Helsingør, Denmark
| | - Thomas Ostenfeld Larsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads Building 221, DK-2800 Kgs. Lyngby, Denmark
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37
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Kumagai K, Tsuda M, Fukushi E, Kawabata J, Masuda A, Tsuda M. Iriomoteolides-9a and 11a: two new odd-numbered macrolides from the marine dinoflagellate Amphidinium species. J Nat Med 2017; 71:506-512. [PMID: 28255848 DOI: 10.1007/s11418-017-1080-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 02/14/2017] [Indexed: 11/29/2022]
Abstract
Iriomoteolides-9a (1) and 11a (2), new 15- and 19-membered macrolides, respectively, have been isolated from the marine dinoflagellate Amphidinium species (strain KCA09052). Compounds 1 and 2 were obtained from the extracts of the algal cells inoculated in the PES and TKF seawater medium, respectively. The structures of 1 and 2 were assigned on the basis of detailed NMR analyses. Compounds 1 and 2 exhibited cytotoxic activity against human cervix adenocarcinoma HeLa cells.
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Affiliation(s)
- Keiko Kumagai
- Science Research Center, Kochi University, Nankoku, Kochi, 783-8505, Japan
| | - Masayuki Tsuda
- Science Research Center, Kochi University, Nankoku, Kochi, 783-8505, Japan
| | - Eri Fukushi
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido, 060-8589, Japan
| | - Jun Kawabata
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido, 060-8589, Japan
| | - Atsunori Masuda
- College of Agriculture, Tamagawa University, Machida, Tokyo, 194-8610, Japan
| | - Masashi Tsuda
- Center for Advanced Marine Core Research and Department of Agriculture and Marine Science, Kochi University, Nankoku, Kochi, 783-8502, Japan.
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38
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Rasmussen SA, Meier S, Andersen NG, Blossom HE, Duus JØ, Nielsen KF, Hansen PJ, Larsen TO. Chemodiversity of Ladder-Frame Prymnesin Polyethers in Prymnesium parvum. JOURNAL OF NATURAL PRODUCTS 2016; 79:2250-6. [PMID: 27550620 DOI: 10.1021/acs.jnatprod.6b00345] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Blooms of the microalga Prymnesium parvum cause devastating fish kills worldwide, which are suspected to be caused by the supersized ladder-frame polyether toxins prymnesin-1 and -2. These toxins have, however, only been detected from P. parvum in rare cases since they were originally described two decades ago. Here, we report the isolation and characterization of a novel B-type prymnesin, based on extensive analysis of 2D- and 3D-NMR data of natural as well as 90% (13)C enriched material. B-type prymnesins lack a complete 1,6-dioxadecalin core unit, which is replaced by a short acyclic C2 linkage compared to the structure of the original prymnesins. Comparison of the bioactivity of prymnesin-2 with prymnesin-B1 in an RTgill-W1 cell line assay identified both compounds as toxic in the low nanomolar range. Chemical investigations by liquid chromatography high-resolution mass spectrometry (LC-HRMS) of 10 strains of P. parvum collected worldwide showed that only one strain produced the original prymnesin-1 and -2, whereas four strains produced the novel B-type prymnesin. In total 13 further prymnesin analogues differing in their core backbone and chlorination and glycosylation patterns could be tentatively detected by LC-MS/HRMS, including a likely C-type prymnesin in five strains. Altogether, our work indicates that evolution of prymnesins has yielded a diverse family of fish-killing toxins that occurs around the globe and has significant ecological and economic impact.
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Affiliation(s)
- Silas Anselm Rasmussen
- Department of Biotechnology and Biomedicine, Technical University of Denmark , Søltofts Plads 221, 2800 Kgs. Lyngby, Denmark
| | - Sebastian Meier
- Department of Chemistry, Technical University of Denmark , Kemitorvet 207, 2800 Kgs. Lyngby, Denmark
| | - Nikolaj Gedsted Andersen
- Marine Biological Section, Department of Biology, Copenhagen University , Strandpromenaden 5, 2100 Helsingør, Denmark
| | - Hannah Eva Blossom
- Marine Biological Section, Department of Biology, Copenhagen University , Strandpromenaden 5, 2100 Helsingør, Denmark
| | - Jens Øllgaard Duus
- Department of Chemistry, Technical University of Denmark , Kemitorvet 207, 2800 Kgs. Lyngby, Denmark
| | - Kristian Fog Nielsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark , Søltofts Plads 221, 2800 Kgs. Lyngby, Denmark
| | - Per Juel Hansen
- Marine Biological Section, Department of Biology, Copenhagen University , Strandpromenaden 5, 2100 Helsingør, Denmark
| | - Thomas Ostenfeld Larsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark , Søltofts Plads 221, 2800 Kgs. Lyngby, Denmark
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39
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Affiliation(s)
- Yusuke Ogura
- Laboratory of Applied Bioorganic
Chemistry, Graduate School of Agricultural Science, Tohoku University, Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - Hikaru Sato
- Laboratory of Applied Bioorganic
Chemistry, Graduate School of Agricultural Science, Tohoku University, Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - Shigefumi Kuwahara
- Laboratory of Applied Bioorganic
Chemistry, Graduate School of Agricultural Science, Tohoku University, Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai 981-8555, Japan
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40
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Kubota T, Sato H, Iwai T, Kobayashi J. Biosynthetic Study of Amphidinin A and Amphidinolide P. Chem Pharm Bull (Tokyo) 2016; 64:979-81. [DOI: 10.1248/cpb.c16-00202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Takaaki Kubota
- Showa Pharmaceutical University
- Graduate School of Pharmaceutical Sciences, Hokkaido University
| | - Hayato Sato
- Graduate School of Pharmaceutical Sciences, Hokkaido University
| | - Takahiro Iwai
- Graduate School of Pharmaceutical Sciences, Hokkaido University
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41
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Grisin A, Evans PA. A highly convergent synthesis of the C1-C31 polyol domain of amphidinol 3 featuring a TST-RCM reaction: confirmation of the revised relative stereochemistry. Chem Sci 2015; 6:6407-6412. [PMID: 28757956 PMCID: PMC5507186 DOI: 10.1039/c5sc00814j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 04/30/2015] [Indexed: 11/21/2022] Open
Abstract
The concise enantioselective synthesis of the revised C1-C31 fragment of the polyketide amphidinol 3 was accomplished in 16 steps and 12.8% overall yield. Salient features of the strategy include chemoselective Weinreb amide coupling and concomitant CBS reduction for the preparation of the C1-C15 tris-syn-1,5-diol motif and a temporary silicon-tethered ring-closing metathesis (TST-RCM) reaction in combination with a diastereoselective hydroboration for the construction of the C16-C31 polypropionate fragment. The union of the fragments was accomplished by a regioselective ring-opening of the terminal epoxide with a phenyl sulfone stabilized carbanion, which upon reduction and deprotection permits a comparison of the relative configuration with the natural product.
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Affiliation(s)
- Aleksandr Grisin
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , ON K7L 3N6 , Canada . ; Tel: +1 613 533 6286
| | - P Andrew Evans
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , ON K7L 3N6 , Canada . ; Tel: +1 613 533 6286
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42
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Murray SA, Kohli GS, Farrell H, Spiers ZB, Place AR, Dorantes-Aranda JJ, Ruszczyk J. A fish kill associated with a bloom of Amphidinium carterae in a coastal lagoon in Sydney, Australia. HARMFUL ALGAE 2015; 49:19-28. [PMID: 31511768 PMCID: PMC6738569 DOI: 10.1016/j.hal.2015.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We report on a dense bloom (~1.80 × 105 cells mL-1) of the marine dinoflagellate species Amphidinium carterae (Genotype 2) in a shallow, small intermittently open coastal lagoon in south eastern Australia. This bloom co-occurred with the deaths of >300 individuals of three different species of fish. The opening of the lagoon to the ocean, as well as localized high nutrient levels, preceded the observations of very high cell numbers. A. carterae is usually benthic and sediment-dwelling, but temporarily became abundant throughout the water column in this shallow (<2 m) sandy habitat. Histopathological results showed that the Anguilla reinhardtii individuals examined had damage to epithelial and gill epithelial cells. An analysis of the bloom water indicated the presence of a compound with a retention time and UV spectra similar to Luteophanol A, a compound known from a strain of Amphidinium. Assays with a fish gill cell line were conducted using a purified compound from cells concentrated from the bloom, and was found to cause a loss of 87% in cell viability in 6 h. The fish deaths were likely due to the low dissolved oxygen levels in the water and/or the presence of Luteophanol A-like compounds released during the bloom.
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Affiliation(s)
- Shauna A. Murray
- Plant Functional Biology and Climate Change Cluster, University of Technology Sydney, NSW, Australia
- Sydney Institute of Marine Sciences, Mosman, NSW, Australia
- Corresponding author at: Plant Functional Biology and Climate Change Cluster, University of Technology Sydney, NSW 2007, Australia. (S.A. Murray)
| | - Gurjeet S. Kohli
- Plant Functional Biology and Climate Change Cluster, University of Technology Sydney, NSW, Australia
- Sydney Institute of Marine Sciences, Mosman, NSW, Australia
| | - Hazel Farrell
- Plant Functional Biology and Climate Change Cluster, University of Technology Sydney, NSW, Australia
- Sydney Institute of Marine Sciences, Mosman, NSW, Australia
| | - Zoe B. Spiers
- NSW Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Menangle NSW, Australia
| | - Allen R. Place
- Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Sciences, Baltimore Maryland, USA
| | | | - Jason Ruszczyk
- Warringah Council, Natural Environment Unit, Dee Why NSW, Australia
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43
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Tsuruda T, Ebine M, Umeda A, Oishi T. Stereoselective Synthesis of the C1–C29 Part of Amphidinol 3. J Org Chem 2015; 80:859-71. [DOI: 10.1021/jo502322m] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Takeshi Tsuruda
- Department of Chemistry,
Faculty and Graduate School of Sciences, Kyushu University, 6-10-1
Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Makoto Ebine
- Department of Chemistry,
Faculty and Graduate School of Sciences, Kyushu University, 6-10-1
Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Aya Umeda
- Department of Chemistry,
Faculty and Graduate School of Sciences, Kyushu University, 6-10-1
Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Tohru Oishi
- Department of Chemistry,
Faculty and Graduate School of Sciences, Kyushu University, 6-10-1
Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
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44
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Minamida M, Kumagai K, Ulanova D, Akakabe M, Konishi Y, Tominaga A, Tanaka H, Tsuda M, Fukushi E, Kawabata J, Masuda A, Tsuda M. Amphirionin-4 with potent proliferation-promoting activity on bone marrow stromal cells from a marine dinoflagellate amphidinium species. Org Lett 2014; 16:4858-61. [PMID: 25188336 DOI: 10.1021/ol5023504] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A linear polyketide, amphirionin-4 (1), has been isolated from cultivated algal cells of the marine dinoflagellate Amphidinium species. The structure was elucidated on the basis of detailed analyses of 1D and 2D NMR data, and the absolute configurations of C-4 and C-8 were determined using the modified Mosher's method. Amphirionin-4 (1) exhibited extremely potent proliferation-promoting activity on murine bone marrow stromal ST-2 cells (950% promotion) at a concentration of 0.1 ng/mL.
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Affiliation(s)
- Mika Minamida
- Department of Applied Science and ‡Center for Advanced Marine Core Research, Kochi University , Kochi 783-8502, Japan
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45
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Nuzzo G, Cutignano A, Sardo A, Fontana A. Antifungal amphidinol 18 and its 7-sulfate derivative from the marine dinoflagellate Amphidinium carterae. JOURNAL OF NATURAL PRODUCTS 2014; 77:1524-1527. [PMID: 24926538 DOI: 10.1021/np500275x] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Two new polyketides of the amphidinol family, amphidinol 18 (AM18, 1) and its corresponding 7-sulfate derivative (AM19, 2), have been isolated from the MeOH extract of the dinoflagellate Amphidinium carterae. Structure elucidation of the two polyoxygenated molecules has been accomplished by extensive use of spectroscopic and spectrometric techniques. AM18 exhibited antifungal activity against Candida albicans at 9 μg/mL.
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Affiliation(s)
- Genoveffa Nuzzo
- CNR, Istituto di Chimica Biomolecolare , Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy
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Van Wagoner RM, Satake M, Wright JLC. Polyketide biosynthesis in dinoflagellates: what makes it different? Nat Prod Rep 2014; 31:1101-37. [DOI: 10.1039/c4np00016a] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Espiritu RA, Matsumori N, Tsuda M, Murata M. Direct and stereospecific interaction of amphidinol 3 with sterol in lipid bilayers. Biochemistry 2014; 53:3287-93. [PMID: 24773476 DOI: 10.1021/bi5002932] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Amphidinol 3 (AM3), a polyhydroxy-polyene metabolite from the dinoflagellate Amphidinium klebsii, possesses potent antifungal activity. Although AM3 permeabilizes phospholipid membranes only in the presence of sterol, the detailed molecular basis by which AM3 recognizes sterols in membranes remains unknown. Here, we investigated the molecular interaction between sterols and AM3 in membranes from the viewpoint of stereospecific molecular recognition using ergosterol, cholesterol, and epicholesterol, which is the 3-OH epimer of cholesterol. Dye leakage assays, surface plasmon resonance experiments, (2)H and (31)P NMR measurements, and microscopic observations revealed that AM3 directly interacts with membrane sterols through the strict molecular recognition of the stereochemistry of the sterol 3-OH group. The direct interaction enhances the membrane binding efficiency of AM3, which subsequently permeabilizes membranes without altering membrane integrity.
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Affiliation(s)
- Rafael Atillo Espiritu
- Department of Chemistry, Graduate School of Science, Osaka University , Osaka 560-0043, Japan
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48
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Ebine M, Kanemoto M, Manabe Y, Konno Y, Sakai K, Matsumori N, Murata M, Oishi T. Synthesis and Structure Revision of the C43–C67 Part of Amphidinol 3. Org Lett 2013; 15:2846-9. [DOI: 10.1021/ol401176a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Makoto Ebine
- Department of Chemistry, Faculty and Graduate School of Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan, and JST ERATO Lipid Active Structure, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Mitsunori Kanemoto
- Department of Chemistry, Faculty and Graduate School of Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan, and JST ERATO Lipid Active Structure, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Yoshiyuki Manabe
- Department of Chemistry, Faculty and Graduate School of Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan, and JST ERATO Lipid Active Structure, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Yosuke Konno
- Department of Chemistry, Faculty and Graduate School of Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan, and JST ERATO Lipid Active Structure, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Ken Sakai
- Department of Chemistry, Faculty and Graduate School of Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan, and JST ERATO Lipid Active Structure, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Nobuaki Matsumori
- Department of Chemistry, Faculty and Graduate School of Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan, and JST ERATO Lipid Active Structure, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Michio Murata
- Department of Chemistry, Faculty and Graduate School of Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan, and JST ERATO Lipid Active Structure, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Tohru Oishi
- Department of Chemistry, Faculty and Graduate School of Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan, and JST ERATO Lipid Active Structure, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
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Ostreol A: A new cytotoxic compound isolated from the epiphytic dinoflagellate Ostreopsis cf. ovata from the coastal waters of Jeju Island, Korea. Bioorg Med Chem Lett 2013; 23:3023-7. [DOI: 10.1016/j.bmcl.2013.03.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2012] [Revised: 02/27/2013] [Accepted: 03/06/2013] [Indexed: 11/18/2022]
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50
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Rival N, Hanquet G, Bensoussan C, Reymond S, Cossy J, Colobert F. Diastereoselective synthesis of the C14–C29 fragment of amphidinol 3. Org Biomol Chem 2013; 11:6829-40. [DOI: 10.1039/c3ob41569d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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