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Ferrera-Suanzes M, Prieto V, Medina-Olivera AJ, Botubol-Ares JM, Galán-Sánchez F, Rodríguez-Iglesias MA, Hernández-Galán R, Durán-Peña MJ. Synthesis of Degraded Limonoid Analogs as New Antibacterial Scaffolds against Staphylococcus aureus. Antibiotics (Basel) 2020; 9:antibiotics9080488. [PMID: 32781770 PMCID: PMC7459938 DOI: 10.3390/antibiotics9080488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/26/2020] [Accepted: 08/04/2020] [Indexed: 12/21/2022] Open
Abstract
Staphylococcus aureus and methicillin-resistant Staphylococcus aureus (MRSA) have become serious infections in humans and ruminants. S. aureus strains are showing rapid changes to develop resistance in traditional antibiotic-containing systems. In the continuous fierce fight against the emergent multi-drug resistant bacterial strains, straightforward and scalable synthetic procedures to produce new active molecules are in demand. Analysis of molecular properties points to degraded limonoids as promising candidates. In this article, we report a simple synthetic approach to obtain degraded limonoid analogs as scaffolds for new antibacterial molecules. The minimum inhibitory concentrations against S. aureus were evaluated for the stereoisomer mixtures by the broth microdilution method. Analysis of results showed that the acetylated derivatives were the most active of them all.
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Affiliation(s)
- Marta Ferrera-Suanzes
- Department of Organic Chemistry, Faculty of Sciences, Campus Universitario Río San Pedro s/n, Torre Sur, 4; planta, University of Cádiz, 11510 Puerto Real, 11009 Cádiz, Spain; (M.F.-S.); (A.J.M.-O.); (J.M.B.-A.); (R.H.-G.)
| | - Victoria Prieto
- Department of Biomedicine, Biotechnology and Public Health, Hospital Puerta del Mar, University of Cádiz, 11009 Cádiz, Spain; (V.P.); (F.G.-S.); (M.A.R.-I.)
| | - Antonio J. Medina-Olivera
- Department of Organic Chemistry, Faculty of Sciences, Campus Universitario Río San Pedro s/n, Torre Sur, 4; planta, University of Cádiz, 11510 Puerto Real, 11009 Cádiz, Spain; (M.F.-S.); (A.J.M.-O.); (J.M.B.-A.); (R.H.-G.)
| | - José Manuel Botubol-Ares
- Department of Organic Chemistry, Faculty of Sciences, Campus Universitario Río San Pedro s/n, Torre Sur, 4; planta, University of Cádiz, 11510 Puerto Real, 11009 Cádiz, Spain; (M.F.-S.); (A.J.M.-O.); (J.M.B.-A.); (R.H.-G.)
| | - Fátima Galán-Sánchez
- Department of Biomedicine, Biotechnology and Public Health, Hospital Puerta del Mar, University of Cádiz, 11009 Cádiz, Spain; (V.P.); (F.G.-S.); (M.A.R.-I.)
- Instituto de investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain
| | - Manuel A. Rodríguez-Iglesias
- Department of Biomedicine, Biotechnology and Public Health, Hospital Puerta del Mar, University of Cádiz, 11009 Cádiz, Spain; (V.P.); (F.G.-S.); (M.A.R.-I.)
- Instituto de investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain
| | - Rosario Hernández-Galán
- Department of Organic Chemistry, Faculty of Sciences, Campus Universitario Río San Pedro s/n, Torre Sur, 4; planta, University of Cádiz, 11510 Puerto Real, 11009 Cádiz, Spain; (M.F.-S.); (A.J.M.-O.); (J.M.B.-A.); (R.H.-G.)
- Instituto de investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain
| | - María Jesús Durán-Peña
- Department of Organic Chemistry, Faculty of Sciences, Campus Universitario Río San Pedro s/n, Torre Sur, 4; planta, University of Cádiz, 11510 Puerto Real, 11009 Cádiz, Spain; (M.F.-S.); (A.J.M.-O.); (J.M.B.-A.); (R.H.-G.)
- Correspondence: ; Tel.: +34-956-016-583
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Khan RA. Natural products chemistry: The emerging trends and prospective goals. Saudi Pharm J 2018; 26:739-753. [PMID: 29991919 PMCID: PMC6036106 DOI: 10.1016/j.jsps.2018.02.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 02/05/2018] [Indexed: 01/01/2023] Open
Abstract
The role and contributions of natural products chemistry in advancements of the physical and biological sciences, its interdisciplinary domains, and emerging of new avenues by providing novel applications, constructive inputs, thrust, comprehensive understanding, broad perspective, and a new vision for future is outlined. The developmental prospects in bio-medical, health, nutrition, and other interrelated sciences along with some of the emerging trends in the subject area are also discussed as part of the current review of the basic and core developments, innovation in techniques, advances in methodology, and possible applications with their effects on the sciences in general and natural products chemistry in particular. The overview of the progress and ongoing developments in broader areas of the natural products chemistry discipline, its role and concurrent economic and scientific implications, contemporary objectives, future prospects as well as impending goals are also outlined. A look at the natural products chemistry in providing scientific progress in various disciplines is deliberated upon.
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Affiliation(s)
- Riaz A. Khan
- Department of Medicinal Chemistry, Qassim University, Qassim 51452, Saudi Arabia
- Manav Rachna International University, National Capital Region, Faridabad, HR 121 004, India
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Basmadjian C, Zhao Q, Bentouhami E, Djehal A, Nebigil CG, Johnson RA, Serova M, de Gramont A, Faivre S, Raymond E, Désaubry LG. Cancer wars: natural products strike back. Front Chem 2014; 2:20. [PMID: 24822174 PMCID: PMC4013484 DOI: 10.3389/fchem.2014.00020] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 04/04/2014] [Indexed: 12/14/2022] Open
Abstract
Natural products have historically been a mainstay source of anticancer drugs, but in the 90's they fell out of favor in pharmaceutical companies with the emergence of targeted therapies, which rely on antibodies or small synthetic molecules identified by high throughput screening. Although targeted therapies greatly improved the treatment of a few cancers, the benefit has remained disappointing for many solid tumors, which revitalized the interest in natural products. With the approval of rapamycin in 2007, 12 novel natural product derivatives have been brought to market. The present review describes the discovery and development of these new anticancer drugs and highlights the peculiarities of natural product and new trends in this exciting field of drug discovery.
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Affiliation(s)
- Christine Basmadjian
- Therapeutic Innovation Laboratory, UMR7200, CNRS/University of StrasbourgIllkirch, France
- AAREC Filia ResearchClichy, France
| | - Qian Zhao
- Therapeutic Innovation Laboratory, UMR7200, CNRS/University of StrasbourgIllkirch, France
- AAREC Filia ResearchClichy, France
| | - Embarek Bentouhami
- L.C.I.M.N Laboratory, Department of Process Engineering, Faculty of Technology, University Ferhat AbbasSétif, Algeria
| | - Amel Djehal
- Therapeutic Innovation Laboratory, UMR7200, CNRS/University of StrasbourgIllkirch, France
- L.C.I.M.N Laboratory, Department of Process Engineering, Faculty of Technology, University Ferhat AbbasSétif, Algeria
| | - Canan G. Nebigil
- Biotechnology and Cell Signaling Laboratory, UMR 7242, CNRS/ University of StrasbourgIllkirch, France
| | - Roger A. Johnson
- Department of Physiology and Biophysics, State University of New YorkStony Brook, NY, USA
| | | | | | - Sandrine Faivre
- AAREC Filia ResearchClichy, France
- Department of Medical Oncology, Beaujon University Hospital, INSERM U728/AP-HPClichy, France
| | - Eric Raymond
- AAREC Filia ResearchClichy, France
- Department of Medical Oncology, Beaujon University Hospital, INSERM U728/AP-HPClichy, France
| | - Laurent G. Désaubry
- Therapeutic Innovation Laboratory, UMR7200, CNRS/University of StrasbourgIllkirch, France
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Dhage GR, Thopate SR, Ramteke SN, Kulkarni PP. One-pot synthesis and evaluation of novel 3-aryl-6-ethoxycarbonyl-4-hydroxy-2H-pyran-2-one as a potent cytotoxic agent. RSC Adv 2014. [DOI: 10.1039/c4ra10015h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of new open chain analogs of Phelligridin J were synthesized and these compounds were found to be highly potent cytotoxic agents.
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Affiliation(s)
- Ganesh Raosaheb Dhage
- Department of Chemistry
- Prof. John Barnabas Post Graduate School of Biological Studies
- Ahmednagar College
- Ahmednagar-414001, India
| | - Shankar Ramchandra Thopate
- Department of Chemistry
- Prof. John Barnabas Post Graduate School of Biological Studies
- Ahmednagar College
- Ahmednagar-414001, India
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Vial H, Taramelli D, Boulton IC, Ward SA, Doerig C, Chibale K. CRIMALDDI: platform technologies and novel anti-malarial drug targets. Malar J 2013; 12:396. [PMID: 24498961 PMCID: PMC3827883 DOI: 10.1186/1475-2875-12-396] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 10/22/2013] [Indexed: 12/24/2022] Open
Abstract
The Coordination, Rationalization, and Integration of antiMALarial drug Discovery & Development Initiatives (CRIMALDDI) Consortium, funded by the EU Framework Seven Programme, has attempted, through a series of interactive and facilitated workshops, to develop priorities for research to expedite the discovery of new anti-malarials. This paper outlines the recommendations for the development of enabling technologies and the identification of novel targets.Screening systems must be robust, validated, reproducible, and represent human malaria. They also need to be cost-effective. While such systems exist to screen for activity against blood stage Plasmodium falciparum, they are lacking for other Plasmodium spp. and other stages of the parasite's life cycle. Priority needs to be given to developing high-throughput screens that can identify activity against the liver and sexual stages. This in turn requires other enabling technologies to be developed to allow the study of these stages and to allow for the culture of liver cells and the parasite at all stages of its life cycle.As these enabling technologies become available, they will allow novel drug targets to be studied. Currently anti-malarials are mostly targeting the asexual blood stage of the parasite's life cycle. There are many other attractive targets that need to be investigated. The liver stages and the sexual stages will become more important as malaria control moves towards malaria elimination. Sexual development is a process offering multiple targets, even though the mechanisms of differentiation are still not fully understood. However, designing a drug whose effect is not curative but would be used in asymptomatic patients is difficult given current safety thresholds. Compounds active against the liver schizont would have a prophylactic effect and Plasmodium vivax elimination requires effectors against the dormant liver hypnozoites. It may be that drugs to be used in elimination campaigns will also need to have utility in the control phase. Compounds with activity against blood stages need to be screened for activity against other stages.Natural products should also be a valuable source of new compounds. They often occupy non-Lipinski chemical space and so may reveal valuable new chemotypes.
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Affiliation(s)
| | | | | | - Steve A Ward
- Liverpool School of Tropical Medicine, Pembroke Place, Liverpool L3 5QA, UK.
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Gersch M, Kreuzer J, Sieber SA. Electrophilic natural products and their biological targets. Nat Prod Rep 2012; 29:659-82. [DOI: 10.1039/c2np20012k] [Citation(s) in RCA: 193] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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7
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Pitscheider M, Mäusbacher N, Sieber SA. Antibiotic activity and target discovery of three-membered natural product-derived heterocycles in pathogenic bacteria. Chem Sci 2012. [DOI: 10.1039/c2sc20290e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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8
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Isidro-Llobet A, Murillo T, Bello P, Cilibrizzi A, Hodgkinson JT, Galloway WRJD, Bender A, Welch M, Spring DR. Diversity-oriented synthesis of macrocyclic peptidomimetics. Proc Natl Acad Sci U S A 2011; 108:6793-8. [PMID: 21383137 PMCID: PMC3084124 DOI: 10.1073/pnas.1015267108] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Structurally diverse libraries of novel small molecules represent important sources of biologically active agents. In this paper we report the development of a diversity-oriented synthesis strategy for the generation of diverse small molecules based around a common macrocyclic peptidomimetic framework, containing structural motifs present in many naturally occurring bioactive compounds. Macrocyclic peptidomimetics are largely underrepresented in current small-molecule screening collections owing primarily to synthetic intractability; thus novel molecules based around these structures represent targets of significant interest, both from a biological and a synthetic perspective. In a proof-of-concept study, the synthesis of a library of 14 such compounds was achieved. Analysis of chemical space coverage confirmed that the compound structures indeed occupy underrepresented areas of chemistry in screening collections. Crucial to the success of this approach was the development of novel methodologies for the macrocyclic ring closure of chiral α-azido acids and for the synthesis of diketopiperazines using solid-supported N methylmorpholine. Owing to their robust and flexible natures, it is envisaged that both new methodologies will prove to be valuable in a wider synthetic context.
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Affiliation(s)
- Albert Isidro-Llobet
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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Guantai E, Chibale K. How can natural products serve as a viable source of lead compounds for the development of new/novel anti-malarials? Malar J 2011; 10 Suppl 1:S2. [PMID: 21411013 PMCID: PMC3059460 DOI: 10.1186/1475-2875-10-s1-s2] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Malaria continues to be an enormous global health challenge, with millions of new infections and deaths reported annually. This is partly due to the development of resistance by the malaria parasite to the majority of established anti-malarial drugs, a situation that continues to hamper attempts at controlling the disease. This has spurred intensive drug discovery endeavours geared towards identifying novel, highly active anti-malarial drugs, and the identification of quality leads from natural sources would greatly augment these efforts. The current reality is that other than compounds that have their foundation in historic natural products, there are no other compounds in drug discovery as part of lead optimization projects and preclinical development or further that have originated from a natural product start-point in recent years. This paper briefly presents both classical as well as some more modern, but underutilized, approaches that have been applied outside the field of malaria, and which could be considered in enhancing the potential of natural products to provide or inspire the development of anti-malarial lead compounds.
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Affiliation(s)
- Eric Guantai
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa
| | - Kelly Chibale
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch, 7701, South Africa
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10
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Abstract
Natural products have evolved to encompass a broad spectrum of chemical and functional diversity. It is this diversity, along with their structural complexity, that enables nature's small molecules to target a nearly limitless number of biological macromolecules and to often do so in a highly selective fashion. Because of these characteristics, natural products have seen great success as therapeutic agents. However, this vast pool of compounds holds much promise beyond the development of future drugs. These features also make them ideal tools for the study of biological systems. Recent examples of the use of natural products and their derivatives as chemical probes to explore biological phenomena and assemble biochemical pathways are presented here.
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Affiliation(s)
- Erin E. Carlson
- Departments of Chemistry and Molecular and Cellular Biochemistry, Indiana University, 212 S. Hawthorne Drive, Bloomington, Indiana 47405
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11
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Baslé E, Joubert N, Pucheault M. Protein chemical modification on endogenous amino acids. ACTA ACUST UNITED AC 2010; 17:213-27. [PMID: 20338513 DOI: 10.1016/j.chembiol.2010.02.008] [Citation(s) in RCA: 301] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Revised: 01/29/2010] [Accepted: 02/11/2010] [Indexed: 12/15/2022]
Abstract
Chemical modification of protein is an arduous but fruitful task. Many chemical methods have been developed for such purpose by carefully balancing reactivity and selectivity. Now both chemists and biologists have in hand an arsenal of tools from which they can select a relevant reaction to tackle their problems. This review focuses on the various chemical transformations available for selective modification of proteins. It also provides a brief overview of some of their main applications, including detection of protein interactions, preparation of bioconjugates, and protein microarrays.
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Affiliation(s)
- Emmanuel Baslé
- Molecular Chemistry and Photonic, UMR 6510 CPM, Centre National de la Recherche Scientifique, Université de Rennes1, 263 Avenue du Général Leclerc, 35042 Rennes cedex, France
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12
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Bohlin L, Göransson U, Alsmark C, Wedén C, Backlund A. Natural products in modern life science. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2010; 9:279-301. [PMID: 20700376 PMCID: PMC2912726 DOI: 10.1007/s11101-009-9160-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2009] [Accepted: 11/17/2009] [Indexed: 05/02/2023]
Abstract
With a realistic threat against biodiversity in rain forests and in the sea, a sustainable use of natural products is becoming more and more important. Basic research directed against different organisms in Nature could reveal unexpected insights into fundamental biological mechanisms but also new pharmaceutical or biotechnological possibilities of more immediate use. Many different strategies have been used prospecting the biodiversity of Earth in the search for novel structure-activity relationships, which has resulted in important discoveries in drug development. However, we believe that the development of multidisciplinary incentives will be necessary for a future successful exploration of Nature. With this aim, one way would be a modernization and renewal of a venerable proven interdisciplinary science, Pharmacognosy, which represents an integrated way of studying biological systems. This has been demonstrated based on an explanatory model where the different parts of the model are explained by our ongoing research. Anti-inflammatory natural products have been discovered based on ethnopharmacological observations, marine sponges in cold water have resulted in substances with ecological impact, combinatory strategy of ecology and chemistry has revealed new insights into the biodiversity of fungi, in depth studies of cyclic peptides (cyclotides) has created new possibilities for engineering of bioactive peptides, development of new strategies using phylogeny and chemography has resulted in new possibilities for navigating chemical and biological space, and using bioinformatic tools for understanding of lateral gene transfer could provide potential drug targets. A multidisciplinary subject like Pharmacognosy, one of several scientific disciplines bridging biology and chemistry with medicine, has a strategic position for studies of complex scientific questions based on observations in Nature. Furthermore, natural product research based on intriguing scientific questions in Nature can be of value to increase the attraction for young students in modern life science.
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Affiliation(s)
- Lars Bohlin
- Division of Pharmacognosy, Department of Medicinal Chemistry, Biomedical Centre, Uppsala University, Box 574, 751 23 Uppsala, Sweden
| | - Ulf Göransson
- Division of Pharmacognosy, Department of Medicinal Chemistry, Biomedical Centre, Uppsala University, Box 574, 751 23 Uppsala, Sweden
| | - Cecilia Alsmark
- Division of Pharmacognosy, Department of Medicinal Chemistry, Biomedical Centre, Uppsala University, Box 574, 751 23 Uppsala, Sweden
| | - Christina Wedén
- Division of Pharmacognosy, Department of Medicinal Chemistry, Biomedical Centre, Uppsala University, Box 574, 751 23 Uppsala, Sweden
| | - Anders Backlund
- Division of Pharmacognosy, Department of Medicinal Chemistry, Biomedical Centre, Uppsala University, Box 574, 751 23 Uppsala, Sweden
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Thornburg CC, Zabriskie TM, McPhail KL. Deep-sea hydrothermal vents: potential hot spots for natural products discovery? JOURNAL OF NATURAL PRODUCTS 2010; 73:489-499. [PMID: 20099811 DOI: 10.1021/np900662k] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Deep-sea hydrothermal vents are among the most extreme and dynamic environments on Earth. However, islands of highly dense and biologically diverse communities exist in the immediate vicinity of hydrothermal vent flows, in stark contrast to the surrounding bare seafloor. These communities comprise organisms with distinct metabolisms based on chemosynthesis and growth rates comparable to those from shallow water tropical environments, which have been rich sources of biologically active natural products. The geological setting and geochemical nature of deep-sea vents that impact the biogeography of vent organisms, chemosynthesis, and the known biological and metabolic diversity of Eukarya, Bacteria, and Archaea, including the handful of natural products isolated to date from deep-sea vent organisms, are considered here in an assessment of deep-sea hydrothermal vents as potential hot spots for natural products investigations. Of critical importance too are the logistics of collecting deep vent organisms, opportunities for re-collection considering the stability and longevity of vent sites, and the ability to culture natural product-producing deep vent organisms in the laboratory. New cost-effective technologies in deep-sea research and more advanced molecular techniques aimed at screening a more inclusive genetic assembly are poised to accelerate natural product discoveries from these microbial diversity hot spots.
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Affiliation(s)
- Christopher C Thornburg
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, Oregon 97331, USA
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14
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Kazmaier U, Persch A. A straightforward approach towards 5-substituted thiazolylpeptides via the thio-Ugi-reaction. Org Biomol Chem 2010; 8:5442-7. [DOI: 10.1039/c0ob00453g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Galloway W, Diáz-Gavilán M, Isidro-Llobet A, Spring D. Erzeugung einer Molekülbibliothek mit außergewöhnlicher Gerüstdiversität. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200805452] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Galloway W, Diáz-Gavilán M, Isidro-Llobet A, Spring D. Synthesis of Unprecedented Scaffold Diversity. Angew Chem Int Ed Engl 2009; 48:1194-6. [DOI: 10.1002/anie.200805452] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Galloway WRJD, Bender A, Welch M, Spring DR. The discovery of antibacterial agents using diversity-oriented synthesis. Chem Commun (Camb) 2009:2446-62. [DOI: 10.1039/b816852k] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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18
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Engineering Conferences International (ECI) Natural Products Discovery and Production II. J Antibiot (Tokyo) 2008. [DOI: 10.1038/ja.2008.91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Derbré S, Gil S, Taverna M, Boursier C, Nicolas V, Demey-Thomas E, Vinh J, Susin SA, Hocquemiller R, Poupon E. Highly cytotoxic and neurotoxic acetogenins of the Annonaceae: new putative biological targets of squamocin detected by activity-based protein profiling. Bioorg Med Chem Lett 2008; 18:5741-4. [PMID: 18851912 DOI: 10.1016/j.bmcl.2008.09.091] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2008] [Revised: 09/22/2008] [Accepted: 09/23/2008] [Indexed: 12/15/2022]
Abstract
Acetogenins of the Annonaceae are strong inhibitors of mitochondrial complex I but discrepancies in the structure/activity relationships pled the search for other targets within the whole cell proteome. Combining hemisynthetic work, Cu-catalyzed Huisgen cycloaddition and proteomic techniques we have identified new putative protein targets of squamocin ruling out the previously accepted 'complex I dogma'. These results give new insights into the mechanism of action of these potent neurotoxic molecules.
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Affiliation(s)
- Séverine Derbré
- Laboratoire de Pharmacognosie associé au CNRS, UMR 8076, Faculté de Pharmacie, Université Paris-Sud 11, Châtenay-Malabry Cedex, France
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Ganesan A. The impact of natural products upon modern drug discovery. Curr Opin Chem Biol 2008; 12:306-17. [PMID: 18423384 DOI: 10.1016/j.cbpa.2008.03.016] [Citation(s) in RCA: 359] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2008] [Revised: 03/19/2008] [Accepted: 03/19/2008] [Indexed: 10/22/2022]
Abstract
In the period 1970-2006, a total of 24 unique natural products were discovered that led to an approved drug. We analyze these successful leads in terms of drug-like properties, and show that they can be divided into two equal subsets. The first falls in the 'Lipinski universe' and complies with the Rule of Five. The second is a 'parallel universe' that violates the rules. Nevertheless, the latter compounds remain largely compliant in terms of logP and H-bond donors, highlighting the importance of these two metrics in predicting bioavailability. Natural products are often cited as an exception to Lipinski's rules. We believe this is because nature has learned to maintain low hydrophobicity and intermolecular H-bond donating potential when it needs to make biologically active compounds with high molecular weight and large numbers of rotatable bonds. In addition, natural products are more likely than purely synthetic compounds to resemble biosynthetic intermediates or endogenous metabolites, and hence take advantage of active transport mechanisms. Interestingly, the natural product leads in the Lipinski and parallel universe had an identical success rate (50%) in delivering an oral drug.
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Affiliation(s)
- A Ganesan
- School of Chemistry, University of Southampton, Southampton, UK.
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