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Gribble GW. Naturally Occurring Organohalogen Compounds-A Comprehensive Review. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2023; 121:1-546. [PMID: 37488466 DOI: 10.1007/978-3-031-26629-4_1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
The present volume is the third in a trilogy that documents naturally occurring organohalogen compounds, bringing the total number-from fewer than 25 in 1968-to approximately 8000 compounds to date. Nearly all of these natural products contain chlorine or bromine, with a few containing iodine and, fewer still, fluorine. Produced by ubiquitous marine (algae, sponges, corals, bryozoa, nudibranchs, fungi, bacteria) and terrestrial organisms (plants, fungi, bacteria, insects, higher animals) and universal abiotic processes (volcanos, forest fires, geothermal events), organohalogens pervade the global ecosystem. Newly identified extraterrestrial sources are also documented. In addition to chemical structures, biological activity, biohalogenation, biodegradation, natural function, and future outlook are presented.
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Affiliation(s)
- Gordon W Gribble
- Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA.
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2
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Lever J, Brkljača R, Rix C, Urban S. Application of Networking Approaches to Assess the Chemical Diversity, Biogeography, and Pharmaceutical Potential of Verongiida Natural Products. Mar Drugs 2021; 19:582. [PMID: 34677481 PMCID: PMC8539549 DOI: 10.3390/md19100582] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 02/06/2023] Open
Abstract
This study provides a review of all isolated natural products (NPs) reported for sponges within the order Verongiida (1960 to May 2020) and includes a comprehensive compilation of their geographic and physico-chemical parameters. Physico-chemical parameters were used in this study to infer pharmacokinetic properties as well as the potential pharmaceutical potential of NPs from this order of marine sponge. In addition, a network analysis for the NPs produced by the Verongiida sponges was applied to systematically explore the chemical space relationships between taxonomy, secondary metabolite and drug score variables, allowing for the identification of differences and correlations within a dataset. The use of scaffold networks as well as bipartite relationship networks provided a platform to explore chemical diversity as well as the use of chemical similarity networks to link pharmacokinetic properties with structural similarity. This study paves the way for future applications of network analysis procedures in the field of natural products for any order or family.
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Affiliation(s)
- James Lever
- School of Science (Applied Chemistry and Environmental Sciences), RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia; (J.L.); (C.R.)
| | - Robert Brkljača
- Monash Biomedical Imaging, Monash University, Clayton, VIC 3168, Australia;
| | - Colin Rix
- School of Science (Applied Chemistry and Environmental Sciences), RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia; (J.L.); (C.R.)
| | - Sylvia Urban
- School of Science (Applied Chemistry and Environmental Sciences), RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia; (J.L.); (C.R.)
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3
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Nudelman A. Dimeric Drugs. Curr Med Chem 2021; 29:2751-2845. [PMID: 34375175 DOI: 10.2174/0929867328666210810124159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 06/18/2021] [Accepted: 06/29/2021] [Indexed: 11/22/2022]
Abstract
This review intends to summarize the structures of an extensive number of symmetrical-dimeric drugs, having two monomers linked via a bridging entity while emphasizing the large versatility of biologically active substances reported to possess dimeric structures. The largest number of classes of these compounds consist of anticancer agents, antibiotics/antimicrobials, and anti-AIDS drugs. Other symmetrical-dimeric drugs include antidiabetics, antidepressants, analgesics, anti-inflammatories, drugs for the treatment of Alzheimer's disease, anticholesterolemics, estrogenics, antioxidants, enzyme inhibitors, anti-Parkisonians, laxatives, antiallergy compounds, cannabinoids, etc. Most of the articles reviewed do not compare the activity/potency of the dimers to that of their corresponding monomers. Only in limited cases, various suggestions have been made to justify unexpected higher activity of the dimers vs. the corresponding monomers. These suggestions include statistical effects, the presence of dimeric receptors, binding of a dimer to two receptors simultaneously, and others. It is virtually impossible to predict which dimers will be preferable to their respective monomers, or which linking bridges will lead to the most active compounds. It is expected that the extensive number of articles summarized, and the large variety of substances mentioned, which display various biological activities, should be of interest to many academic and industrial medicinal chemists.
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Affiliation(s)
- Abraham Nudelman
- Chemistry Department, Bar Ilan University, Ramat Gan 52900, Israel
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4
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Hamoda AM, Fayed B, Ashmawy NS, El-Shorbagi ANA, Hamdy R, Soliman SSM. Marine Sponge is a Promising Natural Source of Anti-SARS-CoV-2 Scaffold. Front Pharmacol 2021; 12:666664. [PMID: 34079462 PMCID: PMC8165660 DOI: 10.3389/fphar.2021.666664] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 04/28/2021] [Indexed: 12/30/2022] Open
Abstract
The current pandemic caused by SARS-CoV2 and named COVID-19 urgent the need for novel lead antiviral drugs. Recently, United States Food and Drug Administration (FDA) approved the use of remdesivir as anti-SARS-CoV-2. Remdesivir is a natural product-inspired nucleoside analogue with significant broad-spectrum antiviral activity. Nucleosides analogues from marine sponge including spongouridine and spongothymidine have been used as lead for the evolutionary synthesis of various antiviral drugs such as vidarabine and cytarabine. Furthermore, the marine sponge is a rich source of compounds with unique activities. Marine sponge produces classes of compounds that can inhibit the viral cysteine protease (Mpro) such as esculetin and ilimaquinone and human serine protease (TMPRSS2) such as pseudotheonamide C and D and aeruginosin 98B. Additionally, sponge-derived compounds such as dihydrogracilin A and avarol showed immunomodulatory activity that can target the cytokines storm. Here, we reviewed the potential use of sponge-derived compounds as promising therapeutics against SARS-CoV-2. Despite the reported antiviral activity of isolated marine metabolites, structural modifications showed the importance in targeting and efficacy. On that basis, we are proposing a novel structure with bifunctional scaffolds and dual pharmacophores that can be superiorly employed in SARS-CoV-2 infection.
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Affiliation(s)
- Alshaimaa M. Hamoda
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Bahgat Fayed
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Chemistry of Natural and Microbial Product Department, National Research Centre, Cairo, Egypt
| | - Naglaa S. Ashmawy
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Abdel-Nasser A. El-Shorbagi
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
| | - Rania Hamdy
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Sameh S. M. Soliman
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
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Verkhratsky A. Early evolutionary history (from bacteria to hemichordata) of the omnipresent purinergic signalling: A tribute to Geoff Burnstock inquisitive mind. Biochem Pharmacol 2020; 187:114261. [PMID: 33011161 DOI: 10.1016/j.bcp.2020.114261] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/25/2020] [Accepted: 09/29/2020] [Indexed: 12/11/2022]
Abstract
Purines and pyrimidines are indispensable molecules of life; they are fundamental for genetic code and bioenergetics. From the very early evolution of life purines have acquired the meaning of damage-associated extracellular signaller and purinergic receptors emerged in unicellular organisms. Ancestral purinoceptors are P2X-like ionotropic ligand-gated cationic channels showing 20-40% of homology with vertebrate P2X receptors; genes encoding ancestral P2X receptors have been detected in Protozoa, Algae, Fungi and Sponges; they are also present in some invertebrates, but are absent from the genome of insects, nematodes, and higher plants. Plants nevertheless evolved a sophisticated and widespread purinergic signalling system relying on the idiosyncratic purinoceptor P2K1/DORN1 linked to intracellular Ca2+ signalling. The advance of metabotropic purinoceptors starts later in evolution with adenosine receptors preceding the emergence of P2Y nucleotide and P0 adenine receptors. In vertebrates and mammals the purinergic signalling system reaches the summit and operates throughout all tissues and systems without anatomical or functional segregation.
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Affiliation(s)
- Alexei Verkhratsky
- Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PT, United Kingdom; Achucarro Center for Neuroscience, IKERBASQUE, 48011 Bilbao, Spain.
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Aggarwal S, Srinivas D, Sreenivasulu C, Satyanarayana G. Nickel catalyzed intramolecular oxidative coupling: synthesis of 3-aryl benzofurans. RSC Adv 2020; 10:22264-22272. [PMID: 35516592 PMCID: PMC9054549 DOI: 10.1039/d0ra03071f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 05/27/2020] [Indexed: 11/21/2022] Open
Abstract
Recent research has been focused on the transition metal-catalyzed reactions. Herein we have developed nickel-catalyzed synthesis of 3-aryl benzofurans from ortho-alkenyl phenols via intramolecular dehydrogenative coupling. Notably, simple O2 gas served as an oxidant, without using any sacrificial hydrogen acceptor. The strategy enabled the synthesis of 3-aryl benzofurans in good to excellent yields.
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Affiliation(s)
- Sakshi Aggarwal
- Department of Chemistry, Indian Institute of Technology Kandi, Sangareddy Hyderabad 502 285 Telangana India +91 40 2301 6003/32 +91 40 2301 6033
| | - Dasari Srinivas
- Department of Chemistry, Indian Institute of Technology Kandi, Sangareddy Hyderabad 502 285 Telangana India +91 40 2301 6003/32 +91 40 2301 6033
| | - Chinnabattigalla Sreenivasulu
- Department of Chemistry, Indian Institute of Technology Kandi, Sangareddy Hyderabad 502 285 Telangana India +91 40 2301 6003/32 +91 40 2301 6033
| | - Gedu Satyanarayana
- Department of Chemistry, Indian Institute of Technology Kandi, Sangareddy Hyderabad 502 285 Telangana India +91 40 2301 6003/32 +91 40 2301 6033
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7
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Oceans as a Source of Immunotherapy. Mar Drugs 2019; 17:md17050282. [PMID: 31083446 PMCID: PMC6562586 DOI: 10.3390/md17050282] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 05/03/2019] [Accepted: 05/06/2019] [Indexed: 02/07/2023] Open
Abstract
Marine flora is taxonomically diverse, biologically active, and chemically unique. It is an excellent resource, which offers great opportunities for the discovery of new biopharmaceuticals such as immunomodulators and drugs targeting cancerous, inflammatory, microbial, and fungal diseases. The ability of some marine molecules to mediate specific inhibitory activities has been demonstrated in a range of cellular processes, including apoptosis, angiogenesis, and cell migration and adhesion. Immunomodulators have been shown to have significant therapeutic effects on immune-mediated diseases, but the search for safe and effective immunotherapies for other diseases such as sinusitis, atopic dermatitis, rheumatoid arthritis, asthma and allergies is ongoing. This review focuses on the marine-originated bioactive molecules with immunomodulatory potential, with a particular focus on the molecular mechanisms of specific agents with respect to their targets. It also addresses the commercial utilization of these compounds for possible drug improvement using metabolic engineering and genomics.
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8
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Vijayamahantesh, Vijayalaxmi. Tinkering with targeting nucleotide signaling for control of intracellular Leishmania parasites. Cytokine 2019; 119:129-143. [PMID: 30909149 DOI: 10.1016/j.cyto.2019.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 03/12/2019] [Accepted: 03/13/2019] [Indexed: 12/23/2022]
Abstract
Nucleotides are one of the most primitive extracellular signalling molecules across all phyla and regulate a multitude of responses. The biological effects of extracellular nucleotides/sides are mediated via the specific purinergic receptors present on the cell surface. In mammalian system, adenine nucleotides are the predominant nucleotides found in the extracellular milieu and mediate a constellation of physiological functions. In the context of host-pathogen interaction, extracellular ATP is recognized as a danger signal and potentiates the release of pro-inflammatory mediators from activated immune cells, on the other hand, its breakdown product adenosine exerts potential anti-inflammatory and immunosuppressive actions. Therefore, it is increasingly apparent that the interplay between extracellular ATP/adenosine ratios has a significant role in coordinating the regulation of the immune system in health and diseases. Several pathogens express ectonucleotidases on their surface and exploit the purinergic signalling as one of the mechanisms to modulate the host immune response. Leishmania pathogens are one of the most successful intracellular pathogens which survive within host macrophages and manipulate protective Th1 response into disease promoting Th2 response. In this review, we discuss the regulation of extracellular ATP and adenosine levels, the role of ATP/adenosine counter signalling in regulating the inflammation and immune responses during infection and how Leishmania parasites exploit the purinergic signalling to manipulate host response. We also discuss the challenges and opportunities in targeting purinergic signalling and the future prospects.
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Affiliation(s)
- Vijayamahantesh
- Department of Biochemistry, Indian Institute of Science (IISc), Bengaluru, Karnataka, India.
| | - Vijayalaxmi
- Department of Zoology, Karnatak University, Dharwad, Karnataka, India
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9
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Anjum K, Abbas SQ, Shah SAA, Akhter N, Batool S, Hassan SSU. Marine Sponges as a Drug Treasure. Biomol Ther (Seoul) 2016; 24:347-62. [PMID: 27350338 PMCID: PMC4930278 DOI: 10.4062/biomolther.2016.067] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 04/28/2016] [Accepted: 05/19/2016] [Indexed: 12/22/2022] Open
Abstract
Marine sponges have been considered as a drug treasure house with respect to great potential regarding their secondary metabolites. Most of the studies have been conducted on sponge's derived compounds to examine its pharmacological properties. Such compounds proved to have antibacterial, antiviral, antifungal, antimalarial, antitumor, immunosuppressive, and cardiovascular activity. Although, the mode of action of many compounds by which they interfere with human pathogenesis have not been clear till now, in this review not only the capability of the medicinal substances have been examined in vitro and in vivo against serious pathogenic microbes but, the mode of actions of medicinal compounds were explained with diagrammatic illustrations. This knowledge is one of the basic components to be known especially for transforming medicinal molecules to medicines. Sponges produce a different kind of chemical substances with numerous carbon skeletons, which have been found to be the main component interfering with human pathogenesis at different sites. The fact that different diseases have the capability to fight at different sites inside the body can increase the chances to produce targeted medicines.
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Affiliation(s)
- Komal Anjum
- Ocean College, Zhejiang University, Hangzhou 310058,
China
| | - Syed Qamar Abbas
- Faculty of Pharmacy, Gomal University D.I.Khan, K.P.K. 29050,
Pakistan
| | | | - Najeeb Akhter
- Ocean College, Zhejiang University, Hangzhou 310058,
China
| | - Sundas Batool
- Department of Molecular Biology, University of Heidelberg,
Germany
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10
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Dreisig K, Kornum BR. A critical look at the function of the P2Y11 receptor. Purinergic Signal 2016; 12:427-37. [PMID: 27246167 DOI: 10.1007/s11302-016-9514-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 04/17/2016] [Indexed: 11/30/2022] Open
Abstract
The P2Y11 receptor is a member of the purinergic receptor family. It has been overlooked, somewhat due to the lack of a P2ry11 gene orthologue in the murine genome, which prevents the generation of knockout mice, which have been so helpful for defining the roles of other P2Y receptors. Furthermore, some of the studies reported to date have methodological shortcomings, making it difficult to determine the function of P2Y11 with certainty. In this review, we discuss the lack of a murine "P2Y11-like receptor" and highlight the limitations of the currently available methods used to investigate the P2Y11 receptor. These methods include protein recognition with antibodies that show very little specificity, gene expression studies that completely overlook the existence of a fusion transcript between the adjacent PPAN gene and P2RY11, and agonists/antagonists reported to be specific for the P2Y11 receptor but which have not been tested for activity on numerous other adenosine 5'-triphosphate (ATP)-binding receptors. We suggest a set of criteria for evaluating whether a dataset describes effects mediated by the P2Y11 receptor. Following these criteria, we conclude that the current evidence suggests a role for P2Y11 in immune activation with cell type-specific effects.
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Affiliation(s)
- Karin Dreisig
- Molecular Sleep Laboratory, Department of Clinical Biochemistry, Rigshospitalet, Glostrup, Denmark
| | - Birgitte Rahbek Kornum
- Molecular Sleep Laboratory, Department of Clinical Biochemistry, Rigshospitalet, Glostrup, Denmark.
- Danish Center for Sleep Medicine, Department of Clinical Neurophysiology, Rigshospitalet, Glostrup, Denmark.
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11
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Agasti S, Sharma U, Naveen T, Maiti D. Orthogonal selectivity with cinnamic acids in 3-substituted benzofuran synthesis through C–H olefination of phenols. Chem Commun (Camb) 2015; 51:5375-8. [DOI: 10.1039/c4cc07026g] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A palladium catalyzed intermolecular annulation of cinnamic acids and phenols has been achieved for the selective synthesis of 3-substituted benzofurans.
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Affiliation(s)
- Soumitra Agasti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Upendra Sharma
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Togati Naveen
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Debabrata Maiti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
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Qiu Y, Ma D, Fu C, Ma S. General approach to benzo[b]thiophenes, benzo[b]furans, and dibenzofurans via gold-catalyzed cyclization of 1-heteroarylalka-2,3-dienyl acetates. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.04.099] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Yuan FQ, Han FS. Iron-Catalyzed Direct Synthesis of Densely Substituted Benzofurans and Naphthopyrans from Phenolic Compounds and Propargylic Alcohols. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200804] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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14
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Action of natural products on p2 receptors: a reinvented era for drug discovery. Molecules 2012; 17:13009-25. [PMID: 23117439 PMCID: PMC6268057 DOI: 10.3390/molecules171113009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 10/12/2012] [Accepted: 10/24/2012] [Indexed: 12/15/2022] Open
Abstract
Natural products contribute significantly to available drug therapies and have been a rich source for scientific investigation. In general, due to their low cost and traditional use in some cultures, they are an object of growing interest as alternatives to synthetic drugs. With several diseases such as cancer, and inflammatory and neuropathic diseases having been linked to the participation of purinergic (P2) receptors, there has been a flurry of investigations on ligands within natural products. Thirty-four different sources of these compounds have been found so far, that have shown either agonistic or antagonistic effects on P2 receptors. Of those, nine different plant sources demonstrated effects on P2X2, P2X3, P2X7, and possibly P2Y12 receptor subtypes. Microorganisms, which represent the largest group, with 26 different sources, showed effects on both receptor subtypes, ranging from P2X1 to P2X4 and P2X7, and P2Y1, P2Y2, P2Y4, and P2Y6. In addition, there were seventeen animal sources that affected P2X7 and P2Y1 and P2Y12 receptors. Natural products have provided some fascinating new mechanisms and sources to better understand the P2 receptor antagonism. Moreover, current investigations should clarify further pharmacological mechanisms in order to consider these products as potential new medicines.
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Moure MJ, SanMartin R, Dominguez E. Benzofurans from Benzophenones and Dimethylacetamide: Copper-Promoted Cascade Formation of Furan O1C2 and C2C3 Bonds Under Oxidative Conditions. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108513] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Moure MJ, SanMartin R, Dominguez E. Benzofurans from Benzophenones and Dimethylacetamide: Copper-Promoted Cascade Formation of Furan O1C2 and C2C3 Bonds Under Oxidative Conditions. Angew Chem Int Ed Engl 2012; 51:3220-4. [DOI: 10.1002/anie.201108513] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Indexed: 11/05/2022]
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17
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Synoxazolidinone C; a bicyclic member of the synoxazolidinone family with antibacterial and anticancer activities. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.02.027] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Mayer AMS, Rodríguez AD, Berlinck RGS, Fusetani N. Marine pharmacology in 2007-8: Marine compounds with antibacterial, anticoagulant, antifungal, anti-inflammatory, antimalarial, antiprotozoal, antituberculosis, and antiviral activities; affecting the immune and nervous system, and other miscellaneous mechanisms of action. Comp Biochem Physiol C Toxicol Pharmacol 2011; 153:191-222. [PMID: 20826228 PMCID: PMC7110230 DOI: 10.1016/j.cbpc.2010.08.008] [Citation(s) in RCA: 124] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 08/25/2010] [Accepted: 08/25/2010] [Indexed: 11/23/2022]
Abstract
The peer-reviewed marine pharmacology literature in 2007-8 is covered in this review, which follows a similar format to the previous 1998-2006 reviews of this series. The preclinical pharmacology of structurally characterized marine compounds isolated from marine animals, algae, fungi and bacteria is discussed in a comprehensive manner. Antibacterial, anticoagulant, antifungal, antimalarial, antiprotozoal, antituberculosis and antiviral activities were reported for 74 marine natural products. Additionally, 59 marine compounds were reported to affect the cardiovascular, immune and nervous systems as well as to possess anti-inflammatory effects. Finally, 65 marine metabolites were shown to bind to a variety of receptors and miscellaneous molecular targets, and thus upon further completion of mechanism of action studies, will contribute to several pharmacological classes. Marine pharmacology research during 2007-8 remained a global enterprise, with researchers from 26 countries, and the United States, contributing to the preclinical pharmacology of 197 marine compounds which are part of the preclinical marine pharmaceuticals pipeline. Sustained preclinical research with marine natural products demonstrating novel pharmacological activities, will probably result in the expansion of the current marine pharmaceutical clinical pipeline, which currently consists of 13 marine natural products, analogs or derivatives targeting a limited number of disease categories.
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Affiliation(s)
- Alejandro M S Mayer
- Department of Pharmacology, Chicago College of Osteopathic Medicine, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA.
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Molecular pharmacology, physiology, and structure of the P2Y receptors. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2011; 61:373-415. [PMID: 21586365 DOI: 10.1016/b978-0-12-385526-8.00012-6] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The P2Y receptors are a widely expressed group of eight nucleotide-activated G protein-coupled receptors (GPCRs). The P2Y(1)(ADP), P2Y(2)(ATP/UTP), P2Y(4)(UTP), P2Y(6)(UDP), and P2Y(11)(ATP) receptors activate G(q) and therefore robustly promote inositol lipid signaling responses. The P2Y(12)(ADP), P2Y(13)(ADP), and P2Y(14)(UDP/UDP-glucose) receptors activate G(i) leading to inhibition of adenylyl cyclase and to Gβγ-mediated activation of a range of effector proteins including phosphoinositide 3-kinase-γ, inward rectifying K(+) (GIRK) channels, phospholipase C-β2 and -β3, and G protein-receptor kinases 2 and 3. A broad range of physiological responses occur downstream of activation of these receptors ranging from Cl(-) secretion by epithelia to aggregation of platelets to neurotransmission. Useful structural models of the P2Y receptors have evolved from extensive genetic analyses coupled with molecular modeling based on three-dimensional structures obtained for rhodopsin and several other GPCRs. Selective ligands have been synthesized for most of the P2Y receptors with the most prominent successes attained with highly selective agonist and antagonist molecules for the ADP-activated P2Y(1) and P2Y(12) receptors. The widely prescribed drug, clopidogrel, which results in irreversible blockade of the platelet P2Y(12) receptor, is the most important therapeutic agent that targets a P2Y receptor.
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Tadesse M, Strøm MB, Svenson J, Jaspars M, Milne BF, Tørfoss V, Andersen JH, Hansen E, Stensvåg K, Haug T. Synoxazolidinones A and B: Novel Bioactive Alkaloids from the Ascidian Synoicum pulmonaria. Org Lett 2010; 12:4752-5. [DOI: 10.1021/ol101707u] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Margey Tadesse
- Norwegian College of Fishery Science, Department of Pharmacy, Department of Chemistry, University of Tromsø, Breivika N-9037, Tromsø, Norway, Marine Biodiscovery Centre, University of Aberdeen, Old Aberdeen, AB24 3UE, Scotland, U.K., Centre for Computational Physics, Department of Physics, University of Coimbra, Rua Larga 3004-516 Coimbra, Portugal, and Centre for Research-based Innovation on Marine Bioactivities and Drug Discovery (MABCENT), University of Tromsø, Breivika N-9037 Tromsø, Norway
| | - Morten B. Strøm
- Norwegian College of Fishery Science, Department of Pharmacy, Department of Chemistry, University of Tromsø, Breivika N-9037, Tromsø, Norway, Marine Biodiscovery Centre, University of Aberdeen, Old Aberdeen, AB24 3UE, Scotland, U.K., Centre for Computational Physics, Department of Physics, University of Coimbra, Rua Larga 3004-516 Coimbra, Portugal, and Centre for Research-based Innovation on Marine Bioactivities and Drug Discovery (MABCENT), University of Tromsø, Breivika N-9037 Tromsø, Norway
| | - Johan Svenson
- Norwegian College of Fishery Science, Department of Pharmacy, Department of Chemistry, University of Tromsø, Breivika N-9037, Tromsø, Norway, Marine Biodiscovery Centre, University of Aberdeen, Old Aberdeen, AB24 3UE, Scotland, U.K., Centre for Computational Physics, Department of Physics, University of Coimbra, Rua Larga 3004-516 Coimbra, Portugal, and Centre for Research-based Innovation on Marine Bioactivities and Drug Discovery (MABCENT), University of Tromsø, Breivika N-9037 Tromsø, Norway
| | - Marcel Jaspars
- Norwegian College of Fishery Science, Department of Pharmacy, Department of Chemistry, University of Tromsø, Breivika N-9037, Tromsø, Norway, Marine Biodiscovery Centre, University of Aberdeen, Old Aberdeen, AB24 3UE, Scotland, U.K., Centre for Computational Physics, Department of Physics, University of Coimbra, Rua Larga 3004-516 Coimbra, Portugal, and Centre for Research-based Innovation on Marine Bioactivities and Drug Discovery (MABCENT), University of Tromsø, Breivika N-9037 Tromsø, Norway
| | - Bruce F. Milne
- Norwegian College of Fishery Science, Department of Pharmacy, Department of Chemistry, University of Tromsø, Breivika N-9037, Tromsø, Norway, Marine Biodiscovery Centre, University of Aberdeen, Old Aberdeen, AB24 3UE, Scotland, U.K., Centre for Computational Physics, Department of Physics, University of Coimbra, Rua Larga 3004-516 Coimbra, Portugal, and Centre for Research-based Innovation on Marine Bioactivities and Drug Discovery (MABCENT), University of Tromsø, Breivika N-9037 Tromsø, Norway
| | - Veronika Tørfoss
- Norwegian College of Fishery Science, Department of Pharmacy, Department of Chemistry, University of Tromsø, Breivika N-9037, Tromsø, Norway, Marine Biodiscovery Centre, University of Aberdeen, Old Aberdeen, AB24 3UE, Scotland, U.K., Centre for Computational Physics, Department of Physics, University of Coimbra, Rua Larga 3004-516 Coimbra, Portugal, and Centre for Research-based Innovation on Marine Bioactivities and Drug Discovery (MABCENT), University of Tromsø, Breivika N-9037 Tromsø, Norway
| | - Jeanette H. Andersen
- Norwegian College of Fishery Science, Department of Pharmacy, Department of Chemistry, University of Tromsø, Breivika N-9037, Tromsø, Norway, Marine Biodiscovery Centre, University of Aberdeen, Old Aberdeen, AB24 3UE, Scotland, U.K., Centre for Computational Physics, Department of Physics, University of Coimbra, Rua Larga 3004-516 Coimbra, Portugal, and Centre for Research-based Innovation on Marine Bioactivities and Drug Discovery (MABCENT), University of Tromsø, Breivika N-9037 Tromsø, Norway
| | - Espen Hansen
- Norwegian College of Fishery Science, Department of Pharmacy, Department of Chemistry, University of Tromsø, Breivika N-9037, Tromsø, Norway, Marine Biodiscovery Centre, University of Aberdeen, Old Aberdeen, AB24 3UE, Scotland, U.K., Centre for Computational Physics, Department of Physics, University of Coimbra, Rua Larga 3004-516 Coimbra, Portugal, and Centre for Research-based Innovation on Marine Bioactivities and Drug Discovery (MABCENT), University of Tromsø, Breivika N-9037 Tromsø, Norway
| | - Klara Stensvåg
- Norwegian College of Fishery Science, Department of Pharmacy, Department of Chemistry, University of Tromsø, Breivika N-9037, Tromsø, Norway, Marine Biodiscovery Centre, University of Aberdeen, Old Aberdeen, AB24 3UE, Scotland, U.K., Centre for Computational Physics, Department of Physics, University of Coimbra, Rua Larga 3004-516 Coimbra, Portugal, and Centre for Research-based Innovation on Marine Bioactivities and Drug Discovery (MABCENT), University of Tromsø, Breivika N-9037 Tromsø, Norway
| | - Tor Haug
- Norwegian College of Fishery Science, Department of Pharmacy, Department of Chemistry, University of Tromsø, Breivika N-9037, Tromsø, Norway, Marine Biodiscovery Centre, University of Aberdeen, Old Aberdeen, AB24 3UE, Scotland, U.K., Centre for Computational Physics, Department of Physics, University of Coimbra, Rua Larga 3004-516 Coimbra, Portugal, and Centre for Research-based Innovation on Marine Bioactivities and Drug Discovery (MABCENT), University of Tromsø, Breivika N-9037 Tromsø, Norway
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21
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Calcul L, Inman WD, Morris AA, Tenney K, Ratnam J, McKerrow JH, Valeriote FA, Crews P. Additional insights on the bastadins: isolation of analogues from the sponge Ianthella cf. reticulata and exploration of the oxime configurations. JOURNAL OF NATURAL PRODUCTS 2010; 73:365-72. [PMID: 20102170 PMCID: PMC4676785 DOI: 10.1021/np9005986] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The focus of this study is on the bastadin class of bromotyrosine derivatives, commonly isolated from Ianthella marine sponges, and is the first report on the secondary metabolites from Ianthella cf. reticulata. Two new bastadins were isolated, (E,Z)-bastadin 19 (1a), a diastereoisomer of the known (E,E)-bastadin 19 (1b), and dioxepine bastadin 3 (2), an unusual dibenzo-1,3-dioxepine. A bastadin NMR database was created and assisted in the structure determination of 1b and 2 and the rapid dereplication of 10 other known compounds including bastadins 2-9 (3-10), 13 (11), and 19 (1a). The geometry of the 2-(hydroxyimino)-N-alkylamide chains, a chemical feature present in all bastadins, was further probed, and new insights regarding the natural oxime configuration are discussed. Bastadins possessing (E,Z)-, (Z,E)-, or (E,E)-dioxime configurations could be artifacts of isolation or storage in solution. Therefore, this point was explored by photochemical and thermal isomerization studies, as well as molecular mechanics calculations. Bastadins 13 (11) and 19 (1a) exhibited moderate inhibition against Trypanosoma brucei, and bastadin 4 (5) was cytotoxic to HCT-116 colon cancer cells.
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Affiliation(s)
| | | | | | | | | | | | | | - Phillip Crews
- To whom correspondence should be addressed: Tel.: 831-459-2603. Fax: 831-459-2935.
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22
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Meis S, Hamacher A, Hongwiset D, Marzian C, Wiese M, Eckstein N, Royer HD, Communi D, Boeynaems JM, Hausmann R, Schmalzing G, Kassack MU. NF546 [4,4'-(carbonylbis(imino-3,1-phenylene-carbonylimino-3,1-(4-methyl-phenylene)-carbonylimino))-bis(1,3-xylene-alpha,alpha'-diphosphonic acid) tetrasodium salt] is a non-nucleotide P2Y11 agonist and stimulates release of interleukin-8 from human monocyte-derived dendritic cells. J Pharmacol Exp Ther 2009; 332:238-47. [PMID: 19815812 DOI: 10.1124/jpet.109.157750] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The G protein-coupled P2Y(11) receptor is involved in immune system modulation. In-depth physiological evaluation is hampered, however, by a lack of selective and potent ligands. By screening a library of sulfonic and phosphonic acid derivatives at P2Y(11) receptors recombinantly expressed in human 1321N1 astrocytoma cells (calcium and cAMP assays), the selective non-nucleotide P2Y(11) agonist NF546 [4,4'-(carbonylbis(imino-3,1-phenylene-carbonylimino-3,1-(4-methyl-phenylene)carbonylimino))-bis(1,3-xylene-alpha,alpha'-diphosphonic acid) tetrasodium salt] was identified. NF546 had a pEC(50) of 6.27 and is relatively selective for P2Y(11) over P2Y(1), P2Y(2), P2Y(4), P2Y(6), P2Y(12), P2X(1), P2X(2), and P2X(2)-X(3). Adenosine-5'-O-(3-thio)triphosphate (ATPgammaS), a nonhydrolyzable analog of the physiological P2Y(11) agonist ATP, and NF546 use a common binding site as suggested by molecular modeling studies and their competitive behavior toward the nanomolar potency antagonist NF340 [4,4'-(carbonylbis(imino-3,1-(4-methyl-phenylene)carbonylimino))bis(naphthalene-2,6-disulfonic acid) tetrasodium salt] in Schild analysis. The pA(2) of NF340 was 8.02 against ATPgammaS and 8.04 against NF546 (calcium assays). NF546 was further tested for P2Y(11)-mediated effects in monocyte-derived dendritic cells. Similarly to ATPgammaS, NF546 led to thrombospondin-1 secretion and inhibition of lipopolysaccharide-stimulated interleukin-12 release, whereas NF340 inhibited these effects. Further, for the first time, it was shown that ATPgammaS or NF546 stimulation promotes interleukin 8 (IL-8) release from dendritic cells, which could be inhibited by NF340. In conclusion, we have described the first selective, non-nucleotide agonist NF546 for P2Y(11) receptors in both recombinant and physiological expression systems and could show a P2Y(11)-stimulated IL-8 release, further supporting the immunomodulatory role of P2Y(11) receptors.
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Affiliation(s)
- Sabine Meis
- Institute of Pharmaceutical and Medicinal Chemistry, Pharmaceutical Biochemistry, Heinrich-Heine-University of Duesseldorf, Duesseldorf, Germany
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23
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Abstract
Purines appear to be the most primitive and widespread chemical messengers in the animal and plant kingdoms. The evidence for purinergic signalling in plants, invertebrates and lower vertebrates is reviewed. Much is based on pharmacological studies, but important recent studies have utilized the techniques of molecular biology and receptors have been cloned and characterized in primitive invertebrates, including the social amoeba Dictyostelium and the platyhelminth Schistosoma, as well as the green algae Ostreococcus, which resemble P2X receptors identified in mammals. This suggests that contrary to earlier speculations, P2X ion channel receptors appeared early in evolution, while G protein-coupled P1 and P2Y receptors were introduced either at the same time or perhaps even later. The absence of gene coding for P2X receptors in some animal groups [e.g. in some insects, roundworms (Caenorhabditis elegans) and the plant Arabidopsis] in contrast to the potent pharmacological actions of nucleotides in the same species, suggests that novel receptors are still to be discovered.
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Affiliation(s)
- G Burnstock
- Autonomic Neuroscience Centre, Royal Free and University College Medical School, London, UK.
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24
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Blunt JW, Copp BR, Hu WP, Munro MHG, Northcote PT, Prinsep MR. Marine natural products. Nat Prod Rep 2009; 26:170-244. [PMID: 19177222 DOI: 10.1039/b805113p] [Citation(s) in RCA: 410] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review covers the literature published in 2007 for marine natural products, with 948 citations(627 for the period January to December 2007) referring to compounds isolated from marine microorganisms and phytoplankton, green algae, brown algae, red algae, sponges, cnidarians,bryozoans, molluscs, tunicates, echinoderms and true mangrove plants. The emphasis is on new compounds (961 for 2007), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.1 Introduction, 2 Reviews, 3 Marine microorganisms and phytoplankton, 4 Green algae, 5 Brown algae, 6 Red algae, 7 Sponges, 8 Cnidarians, 9 Bryozoans, 10 Molluscs, 11 Tunicates (ascidians),12 Echinoderms, 13 Miscellaneous, 14 Conclusion, 15 References.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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25
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26
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Greve H, Schupp PJ, Eguereva E, Kehraus S, Kelter G, Maier A, Fiebig HH, König GM. Apralactone A and a New Stereochemical Class of Curvularins from the Marine-Derived Fungus Curvularia sp. European J Org Chem 2008; 2008:10.1002/ejoc.200800522. [PMID: 24260014 PMCID: PMC3831275 DOI: 10.1002/ejoc.200800522] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2008] [Indexed: 11/06/2022]
Abstract
Chemical investigations of the cytotoxic extract of the marine-derived fungus Curvularia sp. (strain no. 768), isolated from the red alga Acanthophora spicifera, yielded the novel macrolide apralactone A (1), as well as the antipodes of curvularin macrolides 2-7. Compound 8, a dimeric curvularin was recognised as an artefact. The structures of 1-8 were elucidated by interpretation of their spectroscopic data (1D and 2D NMR, CD, MS, UV and IR). Apralactone A (1) is a 14-membered phenyl acetic acid macrolactone, and the first such compound with a 4-chromanone substructure. Compounds 1, 2, 4, 5 and 6 were found to be cytotoxic towards human tumor cell lines with mean IC50 values in the range of 1.25 to 30.06 µM.
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Affiliation(s)
- Hendrik Greve
- Institute for Pharmaceutical Biology, University of Bonn, Nussallee 6, D-53115 Bonn, Germany
| | - Peter J. Schupp
- Marine Laboratory, University of Guam, Mangilao, Guam, 96923 USA
| | - Ekaterina Eguereva
- Institute for Pharmaceutical Biology, University of Bonn, Nussallee 6, D-53115 Bonn, Germany
| | - Stefan Kehraus
- Institute for Pharmaceutical Biology, University of Bonn, Nussallee 6, D-53115 Bonn, Germany
| | - Gerhard Kelter
- Oncotest GmbH, Institute of Experimental Oncology, Am Flughafen 12-14, D-79108 Freiburg, Germany
| | - Armin Maier
- Oncotest GmbH, Institute of Experimental Oncology, Am Flughafen 12-14, D-79108 Freiburg, Germany
| | - Heinz-Herbert Fiebig
- Oncotest GmbH, Institute of Experimental Oncology, Am Flughafen 12-14, D-79108 Freiburg, Germany
| | - Gabriele M. König
- Institute for Pharmaceutical Biology, University of Bonn, Nussallee 6, D-53115 Bonn, Germany
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Ghobsi A, Hacini S, Wavrin L, Gaudel-Siri A, Corbères A, Nicolas C, Bonne D, Viala J, Rodriguez J. Palladium-Catalysed Isomerisation of 2-Vinylidenehydrofurans to 1,3-Dienes and Some Aspects of Their Reactivity. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800517] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Greve H, Kehraus S, Krick A, Kelter G, Maier A, Fiebig HH, Wright AD, König GM. Cytotoxic bastadin 24 from the Australian sponge Ianthella quadrangulata. JOURNAL OF NATURAL PRODUCTS 2008; 71:309-312. [PMID: 18298075 DOI: 10.1021/np070373e] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A new cytotoxic bastadin, bastadin 24 ( 1), and the previously reported bastadins 4, 5, 6, 7, 12, 13, and 21 ( 2- 8) were isolated from a polar extract of the Australian marine sponge Ianthella quadrangulata. The planar structure of bastadin 24 ( 1) was elucidated as the 25-hydroxy derivative of bastadin 6 ( 4) by employing spectroscopic techniques (NMR, MS, UV, and IR). All isolated bastadins were evaluated for their cytotoxicity toward a panel of 36 human tumor cell lines and were found to be moderately cytotoxic. Bastadin 24 ( 1) exhibited selective cytotoxic activity toward five of the 36 investigated tumor cell lines. Bastadins 7 ( 5) and 12 ( 6) significantly inhibited the serum + hEGF-induced (human epithelial growth factor) tubular formation of human umbilical vein endothelial cells (HUVEC) at a concentration of 1 mug/mL.
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Affiliation(s)
- Hendrik Greve
- Institute for Pharmaceutical Biology, University of Bonn, Bonn, Germany
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