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Neves AR, Godinho S, Gonçalves C, Gomes AS, Almeida JR, Pinto M, Sousa E, Correia-da-Silva M. A Chemical Toolbox to Unveil Synthetic Nature-Inspired Antifouling (NIAF) Compounds. Mar Drugs 2024; 22:416. [PMID: 39330297 DOI: 10.3390/md22090416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2024] [Revised: 09/08/2024] [Accepted: 09/09/2024] [Indexed: 09/28/2024] Open
Abstract
The current scenario of antifouling (AF) strategies to prevent the natural process of marine biofouling is based in the use of antifouling paints containing different active ingredients, believed to be harmful to the marine environment. Compounds called booster biocides are being used with copper as an alternative to the traditionally used tributyltin (TBT); however, some of them were recently found to accumulate in coastal waters at levels that are deleterious for marine organisms. More ecological alternatives were pursued, some of them based on the marine organism mechanisms' production of specialized metabolites with AF activity. However, despite the investment in research on AF natural products and their synthetic analogues, many studies showed that natural AF alternatives do not perform as well as the traditional metal-based ones. In the search for AF agents with better performance and to understand which molecular motifs were responsible for the AF activity of natural compounds, synthetic analogues were produced and investigated for structure-AF activity relationship studies. This review is a comprehensive compilation of AF compounds synthesized in the last two decades with highlights on the data concerning their structure-activity relationship, providing a chemical toolbox for researchers to develop efficient nature-inspired AF agents.
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Affiliation(s)
- Ana Rita Neves
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Sara Godinho
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Catarina Gonçalves
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Ana Sara Gomes
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Joana R Almeida
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Madalena Pinto
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Emília Sousa
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Marta Correia-da-Silva
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
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Sun Q, Liang J, Zhang Q, Wang X, Zhao N, Meng F. Pharmacokinetics and Tissue Distribution of Itampolin A following Intragastric and Intravenous Administration in Rats Using Ultra-High-Performance Liquid Chromatography-Tandem Mass Spectrometry. Molecules 2024; 29:2652. [PMID: 38893526 PMCID: PMC11173508 DOI: 10.3390/molecules29112652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/28/2024] [Accepted: 06/02/2024] [Indexed: 06/21/2024] Open
Abstract
Itampolin A, a natural brominated tyrosine alkaloid isolated from the sponge Iotrochota purpurea, has been shown to have good inhibitory effects in lung cancer cells as a p38α inhibitor. A simple, sensitive, and reliable ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method has been established, validated, and applied to the study of the pharmacokinetics and tissue distribution of itampolin A following intragastric and intravenous administration. Itampolin A and theophylline (internal standard, IS) were extracted by the simple protein precipitation technique using methanol as the precipitating solvent. Chromatographic separation was achieved by using the optimized mobile phase of a 0.1% formic acid aqueous solution and acetonitrile in the gradient elution mode. Itampolin A and IS were detected and quantified using positive electrospray ionization in the multiple reaction monitoring mode with transitions of m/z 863.9 → 569.1 for itampolin A and m/z 181.1 → 124.1 for IS, respectively. The assay exhibited a linear dynamic range of 1-1600 ng/mL for itampolin A in biological samples and the low limit of quantification was 1 ng/mL. Non-compartmental pharmacokinetic parameters indicated that itampolin A was well-absorbed into the systemic circulation and rapidly eliminated after administration. The apparent distribution volume of itampolin A was much higher after intragastric administration than that after intravenous administration. A tissue distribution study showed that itampolin A could be detected in different tissues and maintained a high concentration in the lung, which provided a material basis for its effective application in lung cancer. The pharmacokinetic process and tissue distribution characteristics of imtapolin A were expounded in this study, which can provide beneficial information for the further research and clinical application of itampolin A.
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Affiliation(s)
- Qi Sun
- School of Pharmacy, China Medical University, Shenyang 110122, China; (Q.S.); (Q.Z.); (X.W.)
| | - Jingwei Liang
- School of Pharmacy, Hainan Medical University, Haikou 570100, China;
| | - Qingyu Zhang
- School of Pharmacy, China Medical University, Shenyang 110122, China; (Q.S.); (Q.Z.); (X.W.)
| | - Xuezhen Wang
- School of Pharmacy, China Medical University, Shenyang 110122, China; (Q.S.); (Q.Z.); (X.W.)
| | - Nan Zhao
- School of Pharmacy, China Medical University, Shenyang 110122, China; (Q.S.); (Q.Z.); (X.W.)
| | - Fanhao Meng
- School of Pharmacy, China Medical University, Shenyang 110122, China; (Q.S.); (Q.Z.); (X.W.)
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3
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Gallic acid derivatives as inhibitors of mussel (Mytilus galloprovincialis) larval settlement: Lead optimization, biological evaluation and use in antifouling coatings. Bioorg Chem 2022; 126:105911. [DOI: 10.1016/j.bioorg.2022.105911] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/13/2022] [Accepted: 05/23/2022] [Indexed: 11/24/2022]
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4
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Influence of the Intrinsic Characteristics of Cementitious Materials on Biofouling in the Marine Environment. SUSTAINABILITY 2021. [DOI: 10.3390/su13052625] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Coastal marine ecosystems provide essential benefits and services to humanity, but many are rapidly degrading. Human activities are leading to significant land take along coastlines and to major changes in ecosystems. Ecological engineering tools capable of promoting large-scale restoration of coastal ecosystems are needed today in the face of intensifying climatic stress and human activities. Concrete is one of the materials most commonly used in the construction of coastal and marine infrastructure. Immersed in seawater, concretes are rapidly colonized by microorganisms and macroorganisms. Surface colonization and subsequent biofilm and biofouling formation provide numerous advantages to these organisms and support critical ecological and biogeochemical functions in the changing marine environment. The new challenge of the 21st century is to develop innovative concretes that, in addition to their usual properties, provide improved bioreceptivity in order to enhance marine biodiversity. The aim of this study is to master and clarify the intrinsic parameters that influence the bioreceptivity (biocolonization) of cementitious materials in the marine environment. By coupling biofilm (culture-based methods) and biofouling (image-analysis-based method and wet-/dry-weight biomass measurement) quantification techniques, this study showed that the application of a curing compound to the concrete surface reduced the biocolonization of cementitious materials in seawater, whereas green formwork oil had the opposite effect. This study also found that certain surface conditions (faceted and patterned surface, rough surface) promote the bacterial and macroorganism colonization of cementitious materials. Among the parameters examined, surface roughness proved to be the factor that promotes biocolonization most effectively. These results could be taken up in future recommendations to enable engineers to eco-design more eco-friendly marine infrastructure and develop green-engineering projects.
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Neves AR, Almeida JR, Carvalhal F, Câmara A, Pereira S, Antunes J, Vasconcelos V, Pinto M, Silva ER, Sousa E, Correia-da-Silva M. Overcoming environmental problems of biocides: Synthetic bile acid derivatives as a sustainable alternative. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 187:109812. [PMID: 31669574 DOI: 10.1016/j.ecoenv.2019.109812] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 10/10/2019] [Accepted: 10/12/2019] [Indexed: 06/10/2023]
Abstract
Marine biofouling represents a global economic and ecological challenge. Some marine organisms produce bioactive metabolites, such as steroids, that inhibit the settlement and growth of fouling organisms. The aim of this work was to explore bile acids as a new scaffold with antifouling (AF) activity by using chemical synthesis to produce a series of bile acid derivatives with optimized AF performance and understand their structure-activity relationships. Seven bile acid derivatives were successfully synthesized in moderate to high yields, and their structures were elucidated through spectroscopic methods. Their AF activities were tested against both macro- and microfouling communities. The most potent bile acid against the settlement of Mytilus galloprovincialis larvae was the methyl ester derivative of cholic acid (10), which showed an EC50 of 3.7 μM and an LC50/EC50 > 50 (LC50 > 200 μM) in AF effectiveness vs toxicity studies. Two derivatives of deoxycholic acid (5 and 7) potently inhibited the growth of biofilm-forming marine bacteria with EC50 values < 10 μM, and five bile acids (1, 5, and 7-9) potently inhibited the growth of diatoms, showing EC50 values between 3 and 10 μM. Promising AF profiles were achieved with some of the synthesized bile acids by combining antimacrofouling and antimicrofouling activities. Initial studies on the incorporation of one of these promising bile acid derivatives in polymeric coatings, such as a marine paint, demonstrated the ability of these compounds to generate coatings with antimacrofouling activity.
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Affiliation(s)
- Ana R Neves
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Joana R Almeida
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - Francisca Carvalhal
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Amadeu Câmara
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Sandra Pereira
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - Jorge Antunes
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4069-007, Porto, Portugal
| | - Vitor Vasconcelos
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4069-007, Porto, Portugal
| | - Madalena Pinto
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Elisabete R Silva
- BioISI - Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Campo Grande C8 bdg, Lisboa, 1749-016 Portugal; CERENA - Centro de Recursos Naturais e Ambiente, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1, 1049-001, Lisboa, Portugal
| | - Emília Sousa
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Marta Correia-da-Silva
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.
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Miguel-Gordo M, Gegunde S, Calabro K, Jennings LK, Alfonso A, Genta-Jouve G, Vacelet J, Botana LM, Thomas OP. Bromotryptamine and Bromotyramine Derivatives from the Tropical Southwestern Pacific Sponge Narrabeena nigra. Mar Drugs 2019; 17:E319. [PMID: 31151240 PMCID: PMC6627171 DOI: 10.3390/md17060319] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 05/27/2019] [Accepted: 05/28/2019] [Indexed: 12/22/2022] Open
Abstract
So far, the Futuna Islands located in the Central Indo-Pacific Ocean have not been inventoried for their diversity in marine sponges and associated chemical diversity. As part of the Tara Pacific expedition, the first chemical investigation of the sponge Narrabeena nigra collected around the Futuna Islands yielded 18 brominated alkaloids: seven new bromotryptamine derivatives 1-7 and one new bromotyramine derivative 8 together with 10 known metabolites of both families 9-18. Their structures were deduced from extensive analyses of nuclear magnetic resonance (NMR) and high-resolution mass spectrometry (HRMS) data. In silico metabolite anticipation using the online tool MetWork revealed the presence of a key and minor biosynthetic intermediates. These 18 compounds showed almost no cytotoxic effect up to 10 µM on human neuroblastoma SH-SY5Y and microglia BV2 cells, and some of them exhibited an interesting neuroprotective activity by reducing oxidative damage.
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Affiliation(s)
- Maria Miguel-Gordo
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33 Galway, Ireland.
| | - Sandra Gegunde
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain.
| | - Kevin Calabro
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33 Galway, Ireland.
| | - Laurence K Jennings
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33 Galway, Ireland.
| | - Amparo Alfonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain.
| | - Grégory Genta-Jouve
- Laboratoire de Chimie-Toxicologie Analytique et Cellulaire (C-TAC) UMR CNRS 8038 CiTCoM Université Paris-Descartes, 4, avenue de l'Observatoire, 75006 Paris, France.
- Muséum National d'Histoire Naturelle, Unité Molécules de Communication et Adaptation des Micro-organismes (UMR 7245), Sorbonne Universités, CNRS, 75005 Paris, France.
| | - Jean Vacelet
- Aix Marseille Université, CNRS, IRD, IMBE UMR 7263, Avignon Université, Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale, Station Marine d'Endoume, Chemin de la Batterie des Lions, 13007 Marseille, France.
| | - Luis M Botana
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain.
| | - Olivier P Thomas
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33 Galway, Ireland.
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7
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Andjouh S, Blache Y. Screening of bromotyramine analogues as antifouling compounds against marine bacteria. BIOFOULING 2016; 32:871-881. [PMID: 27450150 DOI: 10.1080/08927014.2016.1200562] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 06/07/2016] [Indexed: 06/06/2023]
Abstract
Rapid and efficient synthesis of 23 analogues inspired by bromotyramine derivatives, marine natural products, by means of CuSO4-catalysed [3+2] alkyne-azide cycloaddition is described. The final target was then assayed for anti-biofilm activity against three Gram-negative marine bacteria, Pseudoalteromonas ulvae (TC14), Pseudoalteromonas lipolytica (TC8) and Paracoccus sp. (4M6). Most of the synthesised bromotyramine/triazole derivatives are more active than the parent natural products Moloka'iamine (A) and 3,5-dibromo-4-methoxy-β-phenethylamine (B) against biofilm formation by the three bacterial strains. Some of these compounds were shown to act as non-toxic inhibitors of biofilm development with EC50 < 200 μM without any effect on bacterial growth even at high concentrations (200 μM).
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Affiliation(s)
| | - Yves Blache
- a MAPIEM , Université de Toulon , La Garde , France
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8
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Andjouh S, Bressy C, Blache Y. RAFT polymerization of bromotyramine-based 4-acryloyl-1,2,3-triazole: a functional monomer and polymer family through click chemistry. RSC Adv 2016. [DOI: 10.1039/c5ra27578d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of bromotyramine-based 4-acryloyl-1,2,3-triazole monomers and polymers using click chemistry and RAFT polymerization.
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Affiliation(s)
- Sofyane Andjouh
- Laboratoire Matériaux Polymères-Interfaces-Environnement Marin (MAPIEM)
- Université de Toulon
- 83957 La Garde
- France
| | - Christine Bressy
- Laboratoire Matériaux Polymères-Interfaces-Environnement Marin (MAPIEM)
- Université de Toulon
- 83957 La Garde
- France
| | - Yves Blache
- Laboratoire Matériaux Polymères-Interfaces-Environnement Marin (MAPIEM)
- Université de Toulon
- 83957 La Garde
- France
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9
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ApoE secretion modulating bromotyrosine derivative from the Australian marine sponge Callyspongia sp. Bioorg Med Chem Lett 2014; 24:3537-40. [DOI: 10.1016/j.bmcl.2014.05.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 05/13/2014] [Accepted: 05/15/2014] [Indexed: 12/17/2022]
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10
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Cui YT, Teo SLM, Leong W, Chai CLL. Searching for "environmentally-benign" antifouling biocides. Int J Mol Sci 2014; 15:9255-84. [PMID: 24865489 PMCID: PMC4100093 DOI: 10.3390/ijms15069255] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 05/01/2014] [Accepted: 05/09/2014] [Indexed: 11/25/2022] Open
Abstract
As the result of the ecological impacts from the use of tributyltins (TBT) in shipping, environmental legislation for the registration of chemicals for use in the environment has grown to a monumental challenge requiring product dossiers to include information on the environmental fate and behavior of any chemicals. Specifically, persistence, bioaccumulation and toxicity, collectively known as PBT, are properties of concern in the assessment of chemicals. However, existing measurements of PBT properties are a cumbersome and expensive process, and thus not applied in the early stages of the product discovery and development. Inexpensive methods for preliminary PBT screening would minimize risks arising with the subsequent registration of products. In this article, we evaluated the PBT properties of compounds reported to possess anti-fouling properties using QSAR (quantitative structure-activity relationship) prediction programs such as BIOWIN™ (a biodegradation probability program), KOWWIN™ (log octanol-water partition coefficient calculation program) and ECOSAR™ (Ecological Structure Activity Relationship Programme). The analyses identified some small (Mr < 400) synthetic and natural products as potential candidates for environmentally benign biocides. We aim to demonstrate that while these methods of estimation have limitations, when applied with discretion, they are powerful tools useful in the early stages of research for compound selection for further development as anti-foulants.
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Affiliation(s)
- Yan Ting Cui
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore.
| | - Serena L M Teo
- Tropical Marine Science Institute, National University of Singapore, 18 Kent Ridge Road, Singapore 119227, Singapore.
| | - Wai Leong
- Tropical Marine Science Institute, National University of Singapore, 18 Kent Ridge Road, Singapore 119227, Singapore.
| | - Christina L L Chai
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore.
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Paige M, Kosturko G, Bulut G, Miessau M, Rahim S, Toretsky JA, Brown ML, Üren A. Design, synthesis and biological evaluation of ezrin inhibitors targeting metastatic osteosarcoma. Bioorg Med Chem 2013; 22:478-87. [PMID: 24326277 DOI: 10.1016/j.bmc.2013.11.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 10/25/2013] [Accepted: 11/04/2013] [Indexed: 11/25/2022]
Abstract
Respiratory failure due to pulmonary metastasis is the major cause of death for patients with osteosarcoma. However, the molecular basis for metastasis of osteosarcoma is poorly understood. Recently, ezrin, a member of the ERM family of proteins, has been associated with osteosarcoma metastasis to the lungs. The small molecule NSC 668394 was identified to bind to ezrin, inhibit in vitro and in vivo cell migration, invasion, and metastatic colony survival. Reported herein are the design and synthesis of analogues of NSC 668394, and subsequent functional ezrin inhibition studies. The binding affinity was characterized by surface plasmon resonance technique. Cell migration and invasion activity was determined by electrical cell impedance methodology. Optimization of a series of heterocyclic-dione analogues led to the discovery of compounds 21k and 21m as potential novel antimetastatic agents.
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Affiliation(s)
- Mikell Paige
- George Mason University, Department of Chemistry and Biochemistry, 10900 University Blvd, MS 1A9, Manassas, VA 20110, USA; Georgetown University Medical Center, Center for Drug Discovery, 3970 Reservoir Road, NW, The Research Building, Room EP07, Washington, DC 20057, USA.
| | - George Kosturko
- Georgetown University Medical Center, Center for Drug Discovery, 3970 Reservoir Road, NW, The Research Building, Room EP07, Washington, DC 20057, USA
| | - Güllay Bulut
- Georgetown University Medical Center, Lombardi Comprehensive Cancer Center, 3970 Reservoir Road, NW, The Research Building, Washington, DC 20057, USA; Bahcesehir University, Faculty of Arts and Sciences, Department of Genetics and Bioinformatics, Besiktas, Istanbul 34349, Turkey
| | - Matthew Miessau
- Georgetown University Medical Center, Center for Drug Discovery, 3970 Reservoir Road, NW, The Research Building, Room EP07, Washington, DC 20057, USA
| | - Said Rahim
- Georgetown University Medical Center, Lombardi Comprehensive Cancer Center, 3970 Reservoir Road, NW, The Research Building, Washington, DC 20057, USA
| | - Jeffrey A Toretsky
- Georgetown University Medical Center, Lombardi Comprehensive Cancer Center, 3970 Reservoir Road, NW, The Research Building, Washington, DC 20057, USA
| | - Milton L Brown
- Georgetown University Medical Center, Center for Drug Discovery, 3970 Reservoir Road, NW, The Research Building, Room EP07, Washington, DC 20057, USA; Georgetown University Medical Center, Lombardi Comprehensive Cancer Center, 3970 Reservoir Road, NW, The Research Building, Washington, DC 20057, USA
| | - Aykut Üren
- Georgetown University Medical Center, Lombardi Comprehensive Cancer Center, 3970 Reservoir Road, NW, The Research Building, Washington, DC 20057, USA.
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12
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Tran TD, Pham NB, Fechner G, Hooper JNA, Quinn RJ. Bromotyrosine alkaloids from the Australian marine sponge Pseudoceratina verrucosa. JOURNAL OF NATURAL PRODUCTS 2013; 76:516-23. [PMID: 23489291 DOI: 10.1021/np300648d] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Two new bromotyrosine alkaloids, pseudoceralidinone A (1) and aplysamine 7 (2), along with three known compounds were isolated from the Australian sponge Pseudoceratina verrucosa. Their structures were characterized by NMR and MS data and the synthetic route. Their cytotoxicity was evaluated against cancer cell lines (HeLa and PC3) and a noncancer cell line (NFF).
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Affiliation(s)
- Trong D Tran
- Eskitis Institute, Griffith University, Brisbane, Queensland 4111, Australia
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Gładkowski W, Mazur M, Białońska A, Wawrzeńczyk C. Lactones 35 . Metabolism of iodolactones with cyclohexane ring in Absidia cylindrospora culture. Enzyme Microb Technol 2011; 48:326-33. [DOI: 10.1016/j.enzmictec.2010.12.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2010] [Revised: 12/11/2010] [Accepted: 12/14/2010] [Indexed: 11/29/2022]
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14
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Hertiani T, Edrada-Ebel R, Ortlepp S, van Soest RW, de Voogd NJ, Wray V, Hentschel U, Kozytska S, Müller WE, Proksch P. From anti-fouling to biofilm inhibition: New cytotoxic secondary metabolites from two Indonesian Agelas sponges. Bioorg Med Chem 2010; 18:1297-311. [DOI: 10.1016/j.bmc.2009.12.028] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Revised: 12/07/2009] [Accepted: 12/08/2009] [Indexed: 11/29/2022]
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Murthy PS, Venugopalan VP, Nair KVK, Subramoniam T. Larval Settlement and Surfaces: Implications in Development of Antifouling Strategies. MARINE AND INDUSTRIAL BIOFOULING 2008. [DOI: 10.1007/978-3-540-69796-1_13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Abstract
Traditionally, water quality has been monitored by sampling and lab based analysis. However, there are disadvantages associated with this method, for example, deterioration of samples with time, limited sampling points, limited temporal monitoring. This has provided impetus for the development of sensors which can be deployed from remote locations over extended deployment periods. However, a major limitation of these systems is their vulnerability to biofouling. This review outlines the research that has been carried out on strategies for the protection of marine and riverine sensors against fouling.
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Affiliation(s)
- Aine Whelan
- National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9
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Xu Q, Barrios CA, Cutright T, Zhang Newby BM. Evaluation of toxicity of capsaicin and zosteric acid and their potential application as antifoulants. ENVIRONMENTAL TOXICOLOGY 2005; 20:467-74. [PMID: 16161071 DOI: 10.1002/tox.20134] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The toxicity of two natural product antifoulants, capsaicin and zosteric acid, was evaluated using the Microtox assay and a static toxicity test. The EC50 values obtained from the Microtox assay for capsaicin and zosteric acid were 11.75 +/- 1.02 and 442 +/- 100 mg/L, respectively. The static toxicity test, conducted with freshwater organisms, yielded capsaicin EC50 values of 5.5 +/- 0.5 and 23 +/- 2.0 mg/L for P. putida and Lake Erie bacteria, respectively. Zosteric acid EC50 values were 167 +/- 3.9 and 375 +/- 10 mg/L for P. putida and Lake Erie bacteria, respectively. Tests with marine organisms resulted in capsaicin EC50 values of 6.9 +/- 0.2 and 15.6 +/- 0.4 mg/L for V. natriegens and V. parahaemolyticus, respectively; whereas zosteric acid EC50 values were 7.4 +/- 0.1 and 18 +/- 0.6 mg/L for V. natriegens and V. parahaemolyticus, respectively. These results indicate that zosteric acid is much less toxic than capsaicin and that both are substantially less toxic than the currently used antifoulants, such as TBT (EC50 < 0.01 ppb). Their effectiveness as natural antifoulants was demonstrated by preliminary attachments studies. As the aqueous antifoulant concentration increased, significant inhibition of bacteria attachment or prevention of biofilm formation was achieved. Hence, both capsaicin and zosteric acid could be attractive alternatives as new antifouling compounds.
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Affiliation(s)
- Qingwei Xu
- Department of Civil Engineering, University of Akron, Akron, Ohio 44325-3905, USA
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Peng J, Li J, Hamann MT. The marine bromotyrosine derivatives. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2005; 61:59-262. [PMID: 16173400 PMCID: PMC4943341 DOI: 10.1016/s1099-4831(05)61002-4] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jiangnan Peng
- Department of Pharmacognosy, National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
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Diers JA, Pennaka HK, Peng J, Bowling JJ, Duke SO, Hamann MT. Structural activity relationship studies of zebra mussel antifouling and antimicrobial agents from verongid sponges. JOURNAL OF NATURAL PRODUCTS 2004; 67:2117-2120. [PMID: 15620267 PMCID: PMC4928192 DOI: 10.1021/np040097t] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Several dibromotyramine derivatives including moloka'iamine were selected as potential zebra mussel (Dreissena polymorpha) antifoulants due to the noteworthy absence of fouling observed on sponges of the order Verongida. Sponges of the order Verongida consistently produce these types of bromotyrosine-derived secondary metabolites. Previously reported antifouling data for the barnacle Balanus amphitrite(EC50 = 12.2 microM) support the results reported here that the compound moloka'iamine may be a potential zebra mussel antifoulant compound (EC50 = 10.4 microM). The absence of phytotoxic activity of the compound moloka'iamine toward Lemna pausicostata and, most importantly, the compound's significant selectivity against macrofouling organisms such as zebra mussels suggest the potential utility of this compound as a naturally derived antifoulant lead.
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Affiliation(s)
| | | | | | | | | | - Mark T. Hamann
- Corresponding author. Tel: (662) 915-5730. Fax: (662) 915-6975.
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Kende AS, Lan J, Fan J. Total synthesis of a dibromotyrosine alkaloid inhibitor of mycothiol S-conjugate amidase. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2003.10.117] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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