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Dembitsky VM. Naturally Occurring Norsteroids and Their Design and Pharmaceutical Application. Biomedicines 2024; 12:1021. [PMID: 38790983 PMCID: PMC11117879 DOI: 10.3390/biomedicines12051021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 04/29/2024] [Accepted: 05/01/2024] [Indexed: 05/26/2024] Open
Abstract
The main focus of this review is to introduce readers to the fascinating class of lipid molecules known as norsteroids, exploring their distribution across various biotopes and their biological activities. The review provides an in-depth analysis of various modified steroids, including A, B, C, and D-norsteroids, each characterized by distinct structural alterations. These modifications, which range from the removal of specific methyl groups to changes in the steroid core, result in unique molecular architectures that significantly impact their biological activity and therapeutic potential. The discussion on A, B, C, and D-norsteroids sheds light on their unique configurations and how these structural modifications influence their pharmacological properties. The review also presents examples from natural sources that produce a diverse array of steroids with distinct structures, including the aforementioned A, B, C, and D-nor variants. These compounds are sourced from marine organisms like sponges, soft corals, and starfish, as well as terrestrial entities such as plants, fungi, and bacteria. The exploration of these steroids encompasses their biosynthesis, ecological significance, and potential medical applications, highlighting a crucial area of interest in pharmacology and natural product chemistry. The review emphasizes the importance of researching these steroids for drug development, particularly in addressing diseases where conventional medications are inadequate or for conditions lacking sufficient therapeutic options. Examples of norsteroid synthesis are provided to illustrate the practical applications of this research.
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Affiliation(s)
- Valery M Dembitsky
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada
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Dembitsky VM. Bioactive Steroids Bearing Oxirane Ring. Biomedicines 2023; 11:2237. [PMID: 37626733 PMCID: PMC10452232 DOI: 10.3390/biomedicines11082237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 07/24/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
This review explores the biological activity and structural diversity of steroids and related isoprenoid lipids, with a particular focus on compounds containing an oxirane ring. These natural compounds are derived from fungi, fungal endophytes, as well as extracts of plants, algae, and marine invertebrates. To evaluate their biological activity, an extensive examination of refereed literature sources was conducted, including in vivo and in vitro studies and the utilization of the QSAR method. Notable properties observed among these compounds include strong anti-inflammatory, antineoplastic, antiproliferative, anti-hypercholesterolemic, antiparkinsonian, diuretic, anti-eczematic, anti-psoriatic, and various other activities. Throughout this review, 3D graphs illustrating the activity of individual steroids are presented, accompanied by images of selected terrestrial or marine organisms. Furthermore, this review provides explanations for specific types of biological activity associated with these compounds. The data presented in this review are of scientific interest to the academic community and carry practical implications in the fields of pharmacology and medicine. By analyzing the biological activity and structural diversity of steroids and related isoprenoid lipids, this review offers valuable insights that contribute to both theoretical understanding and applied research. This review draws upon data from various authors to compile information on the biological activity of natural steroids containing an oxirane ring.
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Affiliation(s)
- Valery M Dembitsky
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada
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3
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Dyshlovoy SA, Shubina LK, Makarieva TN, Hauschild J, Strewinsky N, Guzii AG, Menshov AS, Popov RS, Grebnev BB, Busenbender T, Oh-Hohenhorst SJ, Maurer T, Tilki D, Graefen M, Bokemeyer C, Stonik VA, von Amsberg G. New diterpenes from the marine sponge Spongionella sp. overcome drug resistance in prostate cancer by inhibition of P-glycoprotein. Sci Rep 2022; 12:13570. [PMID: 35945234 PMCID: PMC9363487 DOI: 10.1038/s41598-022-17447-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 07/26/2022] [Indexed: 01/18/2023] Open
Abstract
Spongian diterpenes are a group of marine natural compounds possessing various biological activities. However, their anticancer activity is still poorly studied and understood. We isolated six spongian diterpenes from the marine sponge Spongionella sp., including one new spongionellol A and five previously known molecules. The structures were elucidated using a detailed analysis MS and NMR spectra as well as by comparison with previously reported data. Two of them, namely, spongionellol A and 15,16-dideoxy-15α,17β-dihydroxy-15,17-oxidospongian-16-carboxylate-15,17-diacetate exhibited high activity and selectivity in human prostate cancer cells, including cells resistant to hormonal therapy and docetaxel. The mechanism of action has been identified as caspase-dependent apoptosis. Remarkably, both compounds were able to suppress expression of androgen receptor (AR) and AR-splice variant 7, as well as AR-dependent signaling. The isolated diterpenes effectively inhibited drug efflux mediated by multidrug-resistance protein 1 (MDR1; p-glycoprotein). Of note, a synergistic effect of the compounds with docetaxel, a substrate of p-glycoprotein, suggests resensitization of p-glycoprotein overexpressing cells to standard chemotherapy. In conclusion, the isolated spongian diterpenes possess high activity and selectivity towards prostate cancer cells combined with the ability to inhibit one of the main drug-resistance mechanism. This makes them promising candidates for combinational anticancer therapy.
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Affiliation(s)
- Sergey A Dyshlovoy
- Department of Oncology, Hematology and Bone Marrow Transplantation With Section Pneumology, Hubertus Wald Tumorzentrum-University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany. .,Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany. .,Institute of Science-Intensive Technologies and Advanced Materials, Far Eastern Federal University, Vladivostok, Russian Federation.
| | - Larisa K Shubina
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Tatyana N Makarieva
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Jessica Hauschild
- Department of Oncology, Hematology and Bone Marrow Transplantation With Section Pneumology, Hubertus Wald Tumorzentrum-University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Nadja Strewinsky
- Department of Oncology, Hematology and Bone Marrow Transplantation With Section Pneumology, Hubertus Wald Tumorzentrum-University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Alla G Guzii
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Alexander S Menshov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Roman S Popov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Boris B Grebnev
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Tobias Busenbender
- Department of Oncology, Hematology and Bone Marrow Transplantation With Section Pneumology, Hubertus Wald Tumorzentrum-University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Su Jung Oh-Hohenhorst
- Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany.,Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM) Et Institut du Cancer de Montréal, Montreal, QC, Canada
| | - Tobias Maurer
- Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany.,Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Derya Tilki
- Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany.,Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Graefen
- Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Carsten Bokemeyer
- Department of Oncology, Hematology and Bone Marrow Transplantation With Section Pneumology, Hubertus Wald Tumorzentrum-University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Valentin A Stonik
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Gunhild von Amsberg
- Department of Oncology, Hematology and Bone Marrow Transplantation With Section Pneumology, Hubertus Wald Tumorzentrum-University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
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Liang Y, Liao X, Ling L, Yang Y, Zhao B, Xu S. A New Dinorspongian Diterpene with Pyridyl D-Ring from the Marine Sponge Spongia sp .. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109024] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Forster LC, Clegg JK, Cheney KL, Garson MJ. Expanding the Repertoire of Spongian-16-One Derivatives in Australian Nudibranchs of the Genus Goniobranchus and Evaluation of Their Anatomical Distribution. Mar Drugs 2021; 19:680. [PMID: 34940679 PMCID: PMC8706817 DOI: 10.3390/md19120680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 11/21/2022] Open
Abstract
Extracts of the mantle and viscera of the Indo-Pacific nudibranchs Goniobranchus aureopurpureus and Goniobranchus sp. 1 afforded 11 new diterpenoids (1-11), all of which possess a tetracyclic spongian-16-one scaffold with extensive oxidation at C-6, C-7, C-11, C-12, C-13, and/or C-20. The structures and relative configuration were investigated by NMR experiments, while X-ray crystallography provided the absolute configuration of 1, including a 2'S configuration for the 2-methylbutanoate substituent located at C-7. Dissection of animal tissue revealed that the mantle and viscera tissues differed in their metabolite composition with diterpenes 1-11 present in the mantle tissue of the two nudibranch species.
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Affiliation(s)
- Louise C. Forster
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (L.C.F.); (J.K.C.)
| | - Jack K. Clegg
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (L.C.F.); (J.K.C.)
| | - Karen L. Cheney
- School of Biological Sciences, The University of Queensland, St. Lucia, QLD 4072, Australia;
| | - Mary J. Garson
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (L.C.F.); (J.K.C.)
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Avila C, Angulo-Preckler C. Bioactive Compounds from Marine Heterobranchs. Mar Drugs 2020; 18:657. [PMID: 33371188 PMCID: PMC7767343 DOI: 10.3390/md18120657] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 12/22/2022] Open
Abstract
The natural products of heterobranch molluscs display a huge variability both in structure and in their bioactivity. Despite the considerable lack of information, it can be observed from the recent literature that this group of animals possesses an astonishing arsenal of molecules from different origins that provide the molluscs with potent chemicals that are ecologically and pharmacologically relevant. In this review, we analyze the bioactivity of more than 450 compounds from ca. 400 species of heterobranch molluscs that are useful for the snails to protect themselves in different ways and/or that may be useful to us because of their pharmacological activities. Their ecological activities include predator avoidance, toxicity, antimicrobials, antifouling, trail-following and alarm pheromones, sunscreens and UV protection, tissue regeneration, and others. The most studied ecological activity is predation avoidance, followed by toxicity. Their pharmacological activities consist of cytotoxicity and antitumoral activity; antibiotic, antiparasitic, antiviral, and anti-inflammatory activity; and activity against neurodegenerative diseases and others. The most studied pharmacological activities are cytotoxicity and anticancer activities, followed by antibiotic activity. Overall, it can be observed that heterobranch molluscs are extremely interesting in regard to the study of marine natural products in terms of both chemical ecology and biotechnology studies, providing many leads for further detailed research in these fields in the near future.
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Affiliation(s)
- Conxita Avila
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, Biodiversity Research Institute (IrBIO), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Catalonia, Spain;
| | - Carlos Angulo-Preckler
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, Biodiversity Research Institute (IrBIO), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Catalonia, Spain;
- Norwegian College of Fishery Science, UiT The Arctic University of Norway, Hansine Hansens veg 18, 9019 Tromsø, Norway
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Chakraborty K, Joy M. High-value compounds from the molluscs of marine and estuarine ecosystems as prospective functional food ingredients: An overview. Food Res Int 2020; 137:109637. [PMID: 33233216 PMCID: PMC7457972 DOI: 10.1016/j.foodres.2020.109637] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/02/2020] [Accepted: 08/21/2020] [Indexed: 12/20/2022]
Abstract
Reviewed enthnomedical, nutritive and pharmacological profiles of molluscs. Gastropods and bivalves are potential sources of functional food. More than 1334 bioactive metabolites were reported from total of about 1287 publications. Molluscan derived metabolites were mostly belonged to terpenoids and sterols. Number of patents were increased to more than 30% during 2016–2019.
Extensive biodiversity and availability of marine and estuarine molluscs, along with their their wide-range of utilities as food and nutraceutical resources developed keen attention of the food technologists and dieticians, particularly during the recent years. The current review comprehensively summarized the nutritional qualities, functional food attributes, and bioactive properties of these organisms. Among the phylum mollusca, Cephalopoda, Bivalvia, and Gastropoda were mostly reported for their nutraceutical applications and bioactive properties. The online search tools, like Scifinder/Science Direct/PubMed/Google Scholar/MarinLit database and marine natural product reports (1984–2019) were used to comprehend the information about the molluscs. More than 1334 secondary metabolites were reported from marine molluscs between the periods from 1984 to 2019. Among various classes of specialized metabolites, terpenes were occupied by 55% in gastropods, whereas sterols occupied 41% in bivalves. The marketed nutraceuticals, such as CadalminTM green mussel extract (Perna viridis) and Lyprinol® (Perna canaliculus) were endowed with potential anti-inflammatory activities, and were used against arthritis. Molluscan-derived therapeutics, for example, ziconotide was used as an analgesic, and elisidepsin was used in the treatment of cancer. Greater numbers of granted patents (30%) during 2016–2019 recognized the increasing importance of bioactive compounds from molluscs. Consumption of molluscs as daily diets could be helpful in the enhancement of immunity, and reduce the risk of several ailments. The present review comprehended the high value compounds and functional food ingredients from marine and estuarine molluscs.
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Affiliation(s)
- Kajal Chakraborty
- Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin-682018, Kerala, India.
| | - Minju Joy
- Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin-682018, Kerala, India
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8
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Avila C. Terpenoids in Marine Heterobranch Molluscs. Mar Drugs 2020; 18:md18030162. [PMID: 32183298 PMCID: PMC7143877 DOI: 10.3390/md18030162] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/11/2020] [Accepted: 03/11/2020] [Indexed: 12/13/2022] Open
Abstract
Heterobranch molluscs are rich in natural products. As other marine organisms, these gastropods are still quite unexplored, but they provide a stunning arsenal of compounds with interesting activities. Among their natural products, terpenoids are particularly abundant and diverse, including monoterpenoids, sesquiterpenoids, diterpenoids, sesterterpenoids, triterpenoids, tetraterpenoids, and steroids. This review evaluates the different kinds of terpenoids found in heterobranchs and reports on their bioactivity. It includes more than 330 metabolites isolated from ca. 70 species of heterobranchs. The monoterpenoids reported may be linear or monocyclic, while sesquiterpenoids may include linear, monocyclic, bicyclic, or tricyclic molecules. Diterpenoids in heterobranchs may include linear, monocyclic, bicyclic, tricyclic, or tetracyclic compounds. Sesterterpenoids, instead, are linear, bicyclic, or tetracyclic. Triterpenoids, tetraterpenoids, and steroids are not as abundant as the previously mentioned types. Within heterobranch molluscs, no terpenoids have been described in this period in tylodinoideans, cephalaspideans, or pteropods, and most terpenoids have been found in nudibranchs, anaspideans, and sacoglossans, with very few compounds in pleurobranchoideans and pulmonates. Monoterpenoids are present mostly in anaspidea, and less abundant in sacoglossa. Nudibranchs are especially rich in sesquiterpenes, which are also present in anaspidea, and in less numbers in sacoglossa and pulmonata. Diterpenoids are also very abundant in nudibranchs, present also in anaspidea, and scarce in pleurobranchoidea, sacoglossa, and pulmonata. Sesterterpenoids are only found in nudibranchia, while triterpenoids, carotenoids, and steroids are only reported for nudibranchia, pleurobranchoidea, and anaspidea. Many of these compounds are obtained from their diet, while others are biotransformed, or de novo biosynthesized by the molluscs. Overall, a huge variety of structures is found, indicating that chemodiversity correlates to the amazing biodiversity of this fascinating group of molluscs.
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Affiliation(s)
- Conxita Avila
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, and Biodiversity Research Institute (IrBIO), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
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Dembitsky VM, Gloriozova TA, Poroikov VV. Naturally occurring marine α,β-epoxy steroids: Origin and biological activities. VIETNAM JOURNAL OF CHEMISTRY 2018. [DOI: 10.1002/vjch.201800025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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10
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Dewi AS, Pierens GK, Cheney KL, Blanchfield JT, Garson MJ. Chromolactol, an Oxygenated Diterpene from the Indo-Pacific Nudibranch Goniobranchus coi: Spectroscopic and Computational Studies. Aust J Chem 2018. [DOI: 10.1071/ch18243] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A rearranged spongian diterpene chromolactol was obtained from the mantle extract of the Indo-Pacific nudibranch Goniobranchus coi. The structure of chromolactol, either 1a or 1b, which was investigated by extensive NMR experiments and by data comparison as well as by molecular modelling studies and density functional calculations, has a different relative configuration of the 2,8-dioxabicyclo-[3.3.0]-octane ring compared with the co-metabolite norrisolide (2). A biosynthetic pathway leading to the preferred diastereomer of chromolactol (1a) is presented.
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Abstract
Covering: up to the end of February 2017Nudibranchs have attracted the attention of natural product researchers due to the potential for discovery of bioactive metabolites, in conjunction with the interesting predator-prey chemical ecological interactions that are present. This review covers the literature published on natural products isolated from nudibranchs up to February 2017 with species arranged taxonomically. Selected examples of metabolites obtained from nudibranchs across the full range of taxa are discussed, including their origins (dietary or biosynthetic) if known and biological activity.
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Affiliation(s)
- Lewis J Dean
- School of Science, University of Waikato, Hamilton 3240, New Zealand.
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Fisch KM, Hertzer C, Böhringer N, Wuisan ZG, Schillo D, Bara R, Kaligis F, Wägele H, König GM, Schäberle TF. The Potential of Indonesian Heterobranchs Found around Bunaken Island for the Production of Bioactive Compounds. Mar Drugs 2017; 15:E384. [PMID: 29215579 PMCID: PMC5742844 DOI: 10.3390/md15120384] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 11/27/2017] [Accepted: 11/28/2017] [Indexed: 01/09/2023] Open
Abstract
The species diversity of marine heterobranch sea slugs found on field trips around Bunaken Island (North Sulawesi, Indonesia) and adjacent islands of the Bunaken National Marine Park forms the basis of this review. In a survey performed in 2015, 80 species from 23 families were collected, including 17 new species. Only three of these have been investigated previously in studies from Indonesia. Combining species diversity with a former study from 2003 reveals in total 140 species from this locality. The diversity of bioactive compounds known and yet to be discovered from these organisms is summarized and related to the producer if known or suspected (might it be down the food chain, de novo synthesised from the slug or an associated bacterium). Additionally, the collection of microorganisms for the discovery of natural products of pharmacological interest from this hotspot of biodiversity that is presented here contains more than 50 species that have never been investigated before in regard to bioactive secondary metabolites. This highlights the great potential of the sea slugs and the associated microorganisms for the discovery of natural products of pharmacological interest from this hotspot of biodiversity.
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Affiliation(s)
- Katja M Fisch
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, 35392 Giessen, Germany.
- Institute for Pharmaceutical Biology, Rheinische Friedrich-Wilhelms-University Bonn, 53115 Bonn, Germany.
| | - Cora Hertzer
- Institute for Pharmaceutical Biology, Rheinische Friedrich-Wilhelms-University Bonn, 53115 Bonn, Germany.
| | - Nils Böhringer
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, 35392 Giessen, Germany.
- Institute for Pharmaceutical Biology, Rheinische Friedrich-Wilhelms-University Bonn, 53115 Bonn, Germany.
| | - Zerlina G Wuisan
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, 35392 Giessen, Germany.
- Institute for Pharmaceutical Biology, Rheinische Friedrich-Wilhelms-University Bonn, 53115 Bonn, Germany.
| | - Dorothee Schillo
- Centre of Molecular Biodiversity, Zoological Research Museum Alexander Koenig, 53113 Bonn, Germany.
| | - Robert Bara
- Faculty of Fisheries and Marine Science, Sam Ratulangi University, Manado 95115, Indonesia.
| | - Fontje Kaligis
- Faculty of Fisheries and Marine Science, Sam Ratulangi University, Manado 95115, Indonesia.
| | - Heike Wägele
- Centre of Molecular Biodiversity, Zoological Research Museum Alexander Koenig, 53113 Bonn, Germany.
| | - Gabriele M König
- Institute for Pharmaceutical Biology, Rheinische Friedrich-Wilhelms-University Bonn, 53115 Bonn, Germany.
- German Center for Infection Research, Partner Site Bonn-Cologne, 53115 Bonn, Germany.
| | - Till F Schäberle
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, 35392 Giessen, Germany.
- Institute for Pharmaceutical Biology, Rheinische Friedrich-Wilhelms-University Bonn, 53115 Bonn, Germany.
- German Center for Infection Research, Partner Site Bonn-Cologne, 53115 Bonn, Germany.
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13
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Ciavatta ML, Lefranc F, Carbone M, Mollo E, Gavagnin M, Betancourt T, Dasari R, Kornienko A, Kiss R. Marine Mollusk-Derived Agents with Antiproliferative Activity as Promising Anticancer Agents to Overcome Chemotherapy Resistance. Med Res Rev 2017; 37:702-801. [PMID: 27925266 PMCID: PMC5484305 DOI: 10.1002/med.21423] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 09/20/2016] [Accepted: 09/23/2016] [Indexed: 12/18/2022]
Abstract
The chemical investigation of marine mollusks has led to the isolation of a wide variety of bioactive metabolites, which evolved in marine organisms as favorable adaptations to survive in different environments. Most of them are derived from food sources, but they can be also biosynthesized de novo by the mollusks themselves, or produced by symbionts. Consequently, the isolated compounds cannot be strictly considered as "chemotaxonomic markers" for the different molluscan species. However, the chemical investigation of this phylum has provided many compounds of interest as potential anticancer drugs that assume particular importance in the light of the growing literature on cancer biology and chemotherapy. The current review highlights the diversity of chemical structures, mechanisms of action, and, most importantly, the potential of mollusk-derived metabolites as anticancer agents, including those biosynthesized by mollusks and those of dietary origin. After the discussion of dolastatins and kahalalides, compounds previously studied in clinical trials, the review covers potentially promising anticancer agents, which are grouped based on their structural type and include terpenes, steroids, peptides, polyketides and nitrogen-containing compounds. The "promise" of a mollusk-derived natural product as an anticancer agent is evaluated on the basis of its ability to target biological characteristics of cancer cells responsible for poor treatment outcomes. These characteristics include high antiproliferative potency against cancer cells in vitro, preferential inhibition of the proliferation of cancer cells over normal ones, mechanism of action via nonapoptotic signaling pathways, circumvention of multidrug resistance phenotype, and high activity in vivo, among others. The review also includes sections on the targeted delivery of mollusk-derived anticancer agents and solutions to their procurement in quantity.
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Affiliation(s)
- Maria Letizia Ciavatta
- Consiglio Nazionale delle Ricerche (CNR)Istituto di Chimica Biomolecolare (ICB)Via Campi Flegrei 3480078PozzuoliItaly
| | - Florence Lefranc
- Service de Neurochirurgie, Hôpital ErasmeUniversité Libre de Bruxelles (ULB)1070BrusselsBelgium
| | - Marianna Carbone
- Consiglio Nazionale delle Ricerche (CNR)Istituto di Chimica Biomolecolare (ICB)Via Campi Flegrei 3480078PozzuoliItaly
| | - Ernesto Mollo
- Consiglio Nazionale delle Ricerche (CNR)Istituto di Chimica Biomolecolare (ICB)Via Campi Flegrei 3480078PozzuoliItaly
| | - Margherita Gavagnin
- Consiglio Nazionale delle Ricerche (CNR)Istituto di Chimica Biomolecolare (ICB)Via Campi Flegrei 3480078PozzuoliItaly
| | - Tania Betancourt
- Department of Chemistry and BiochemistryTexas State UniversitySan MarcosTX78666
| | - Ramesh Dasari
- Department of Chemistry and BiochemistryTexas State UniversitySan MarcosTX78666
| | - Alexander Kornienko
- Department of Chemistry and BiochemistryTexas State UniversitySan MarcosTX78666
| | - Robert Kiss
- Laboratoire de Cancérologie et de Toxicologie ExpérimentaleFaculté de Pharmacie, Université Libre de Bruxelles (ULB)1050BrusselsBelgium
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14
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Forster LC, Winters AE, Cheney KL, Dewapriya P, Capon RJ, Garson MJ. Spongian-16-one Diterpenes and Their Anatomical Distribution in the Australian Nudibranch Goniobranchus collingwoodi. JOURNAL OF NATURAL PRODUCTS 2017; 80:670-675. [PMID: 28032760 DOI: 10.1021/acs.jnatprod.6b00936] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Six new (1-6) spongian-16-one analogues have been characterized from the Australian nudibranch species Goniobranchus collingwoodi, along with four known spongian-16-one derivatives. The structures and relative configuration were suggested by spectroscopic analyses informed by molecular modeling. Dissection of animal tissue revealed that the mantle and viscera differ in their terpene composition. Whole body extracts were not toxic to brine shrimp (Artemia sp.), but were unpalatable to palaemon shrimp (Palaemon serenus) at a concentration found within the nudibranch. Individual terpenes were not cytotoxic to human lung (NCIH-460), colorectal (SW620), and liver (HepG2) cancer cells.
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Affiliation(s)
- Louise C Forster
- School of Chemistry and Molecular Biosciences, ‡School of Biological Sciences, and §Institute for Molecular Bioscience, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Anne E Winters
- School of Chemistry and Molecular Biosciences, ‡School of Biological Sciences, and §Institute for Molecular Bioscience, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Karen L Cheney
- School of Chemistry and Molecular Biosciences, ‡School of Biological Sciences, and §Institute for Molecular Bioscience, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Pradeep Dewapriya
- School of Chemistry and Molecular Biosciences, ‡School of Biological Sciences, and §Institute for Molecular Bioscience, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Robert J Capon
- School of Chemistry and Molecular Biosciences, ‡School of Biological Sciences, and §Institute for Molecular Bioscience, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Mary J Garson
- School of Chemistry and Molecular Biosciences, ‡School of Biological Sciences, and §Institute for Molecular Bioscience, The University of Queensland , Brisbane, QLD 4072, Australia
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15
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El-Desoky AH, Kato H, Kagiyama I, Hitora Y, Losung F, Mangindaan REP, de Voogd NJ, Tsukamoto S. Ceylonins A-F, Spongian Diterpene Derivatives That Inhibit RANKL-Induced Formation of Multinuclear Osteoclasts, from the Marine Sponge Spongia ceylonensis. JOURNAL OF NATURAL PRODUCTS 2017; 80:90-95. [PMID: 28026175 DOI: 10.1021/acs.jnatprod.6b00725] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Six new spongian diterpene derivatives, ceylonins A-F (1-6), were isolated from the Indonesian marine sponge Spongia ceylonensis along with spongia-13(16),14-dien-19-oic acid (7). They contained three additional carbons in ring D to supply an ether-bridged bicyclic ring system. Their structures were elucidated by analyzing NMR spectroscopic data and calculated ECD spectra in comparison to experimental ECD spectra. The bicyclic ring system may be derived from the major metabolite 7 and a C3 unit (an acrylic acid equivalent) through an intermolecular Diels-Alder reaction, which was experimentally supported by the formation of 1-6 from 7 and acrylic acid. The inhibitory effects of the isolated compounds on the RANKL-induced formation of multinuclear osteoclasts in RAW264 macrophages were examined.
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Affiliation(s)
- Ahmed H El-Desoky
- Graduate School of Pharmaceutical Sciences, Kumamoto University , Oe-honmachi 5-1, Kumamoto 862-0973, Japan
| | - Hikaru Kato
- Graduate School of Pharmaceutical Sciences, Kumamoto University , Oe-honmachi 5-1, Kumamoto 862-0973, Japan
| | - Ippei Kagiyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University , Oe-honmachi 5-1, Kumamoto 862-0973, Japan
| | - Yuki Hitora
- Graduate School of Pharmaceutical Sciences, Kumamoto University , Oe-honmachi 5-1, Kumamoto 862-0973, Japan
| | - Fitje Losung
- Faculty of Fisheries and Marine Science, Sam Ratulangi University , Kampus Bahu, Manado 95115, Indonesia
| | - Remy E P Mangindaan
- Faculty of Fisheries and Marine Science, Sam Ratulangi University , Kampus Bahu, Manado 95115, Indonesia
| | - Nicole J de Voogd
- Naturalis Biodiversity Center , P.O. Box 9517, 2300 RA Leiden, The Netherlands
| | - Sachiko Tsukamoto
- Graduate School of Pharmaceutical Sciences, Kumamoto University , Oe-honmachi 5-1, Kumamoto 862-0973, Japan
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16
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Xiao X, Xu Z, Zeng QD, Chen XB, Ji WH, Han Y, Wu P, Ren J, Zeng BB. Construction of the Isocopalane Skeleton: Application of a Desulfinylative 1,7-Hydrogen Atom Transfer Strategy. Chemistry 2015; 21:8351-4. [DOI: 10.1002/chem.201500794] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Indexed: 12/16/2022]
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17
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Heravi MM, Lashaki TB, Poorahmad N. Applications of Sharpless asymmetric epoxidation in total synthesis. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.03.006] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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18
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Gavagnin M. Exploring the Chemistry of Marine Opisthobranchs: Recent Results. CHEMISTRY JOURNAL OF MOLDOVA 2011. [DOI: 10.19261/cjm.2011.06(2).05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The current communication is an extended abstract of the presentation delivered on the joint Moldo-Italian seminar “New frontiers in natural product chemistry”, held in the Institute of Chemistry, Academy of Sciences of Moldova on 30th September. An overview of the recent studies conducted by our group on opisthobranch molluscs from distinct geographical areas is briefly presented.
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19
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Frija LMT, Frade RFM, Afonso CAM. Isolation, chemical, and biotransformation routes of labdane-type diterpenes. Chem Rev 2011; 111:4418-52. [PMID: 21618966 DOI: 10.1021/cr100258k] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Luís M T Frija
- CQFM - Centro de Química-Física Molecular and IN - Institute of Nanoscience and Nanotechnology, Departamento de Engenharia Química e Biológica Instituto Superior Técnico, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal.
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20
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Suciati, Lambert LK, Garson MJ. Structures and Anatomical Distribution of Oxygenated Diterpenes in the Australian Nudibranch Chromodoris reticulata. Aust J Chem 2011. [DOI: 10.1071/ch11036] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The structures and stereochemistry of six new diterpenes (1–6), two of which contain cyclic imine functionality, have been deduced by 2D NMR spectroscopy. The anatomical distribution of these, and of 17 other diterpenes (7–23) that were also isolated, has been investigated. The known compound aplyroseol-2 (14) was the major compound in the mantle tissue along with some dialdehydes, while the linear furan ambliofuran (7) was the only diterpene found solely in the internal organs. The presence of lactone-acetal-hemiacetal functionality in many of the isolated compounds is a consequence of the reactive dialdehydes present in the mollusc.
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21
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Agena M, Tanaka C, Hanif N, Yasumoto-Hirose M, Tanaka J. New cytotoxic spongian diterpenes from the sponge Dysidea cf. arenaria. Tetrahedron 2009. [DOI: 10.1016/j.tet.2008.11.101] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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23
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Abstract
This review covers the literature published in 2005 for marine natural products, with 704 citations (493 for the period January to December 2005) referring to compounds isolated from marine microorganisms and phytoplankton, green algae, brown algae, red algae, sponges, coelenterates, bryozoans, molluscs, tunicates and echinoderms. The emphasis is on new compounds (812 for 2005), together with their 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.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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24
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Miyamoto T. Selected bioactive compounds from Japanese anaspideans and nudibranchs. PROGRESS IN MOLECULAR AND SUBCELLULAR BIOLOGY 2006; 43:199-214. [PMID: 17153344 DOI: 10.1007/978-3-540-30880-5_9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Marine opisthobranchs are mollusks scarcely protected by a shell which can be either reduced or completely absent. It is generally accepted that they possess chemical defenses (allelochemicals) against predators. These protective molecules can derive from dietary habits (algae, sponges, tunicates, soft corals, etc.) and can be used either in their intact form or as derived metabolites. Added to this, other compounds are biogenetically obtained. These defensive compounds are very often concentrated in the external parts of the animal and are also released into the mucous secretion to deter predators. The chemical defenses of sea hares (order Anaspidea) and sea slugs (order Nudibranchia) are well studied. This review highlights the allelochemicals reported from Japanese anaspideans and nudibranchs, with particular attention to the finding of our group.
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Affiliation(s)
- T Miyamoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi 812-8582 Higashio-ku, Fukuoka, Japan
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25
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Abstract
This review presents the structure, biological activity and, where applicable, references to the syntheses of 154 spongian and rearranged spongian diterpenoids isolated from marine sponges of the orders Dictyoceratida and Dendroceratida. There have been no studies of the biosynthesis of either spongian diterpenoids or their rearranged derivatives reported in the literature. The potential chemotaxonomic significance of spongian and rearranged spongian ditepenoids is discussed.
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Affiliation(s)
- Robert A Keyzers
- Chemistry Department, Rhodes University, Grahamstown, South Africa
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26
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Wahidullah S, Guo YW, Fakhr IMI, Mollo E. Chemical diversity in opisthobranch molluscs from scarcely investigated Indo-Pacific areas. PROGRESS IN MOLECULAR AND SUBCELLULAR BIOLOGY 2006; 43:175-98. [PMID: 17153343 DOI: 10.1007/978-3-540-30880-5_8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Opisthobranch molluscs with both a rich variety of secondary metabolites and great biomedical potential represent the most intensively studied group of molluscs in natural product chemistry. We review here the chemical investigations into secondary metabolites of "sea slugs" from less-studied Indian, Chinese and Egyptian coasts, giving an overview of their most relevant biological activities. In addition to the biomedical interest of the metabolites, in which both structures and organisms often lose their own importance, this chapter emphasizes the phyletic and geographic distribution of the compounds in order to provide a further informational base for chemotaxonomical generalizations.
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Affiliation(s)
- S Wahidullah
- National Institute of Oceangraphy (NIO-CSIR), Dona Paula 403 004, Goa, India
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Abstract
A stereoselective synthesis of (+)-norrisolide is presented. This natural product belongs to a family of marine spongiane diterpenes the structure of which is characterized by a fused gamma-lactone-gamma-lactol ring system attached to a bicyclic hydrophobic core. Our studies led to the development of a expedient synthesis of such gamma-lactone-gamma-lactol motifs based on ring expansion of a fused cyclopropyl ester. Highlights of the synthetic strategy toward norrisolide include the coupling of the two bicyclic systems by constructing a sterically demanding C9-C10 bond and the installation of the C19 oxygen at the last step of the synthesis via a Baeyer-Villiger oxidation.
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Affiliation(s)
- Thomas P Brady
- Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0358, USA
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Abad A, Agulló C, Cuñat AC, García AB. Syntheses of oxygenated spongiane diterpenes from carvone. Synthesis of dorisenone C. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.01.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Abad A, Agulló C, Cuñat AC, Garcı́a AB, Giménez-Saiz C. Synthetic studies on the preparation of oxygenated spongiane diterpenes from carvone. Tetrahedron 2003. [DOI: 10.1016/j.tet.2003.10.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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30
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Arnó M, Betancur-Galvis L, González MA, Sierra J, Zaragozá RJ. Synthesis and cytotoxic activity of novel C7-functionalized spongiane diterpenes. Bioorg Med Chem 2003; 11:3171-7. [PMID: 12818680 DOI: 10.1016/s0968-0896(03)00230-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Based on two lead cytotoxic spongiane diterpenes, a new series of C7-oxygenated derivatives were synthesized and evaluated for their antitumor activity in vitro against the cancer cell lines HeLa and HEp-2. In general, introduction of either hydroxyl or acetoxy groups at C-7 did not improve the resultant cytotoxicity, while the presence of a butyrate ester led to more active compounds (CC(50)=4.0-9.5 microM).
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Affiliation(s)
- Manuel Arnó
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Valencia, Spain
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31
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Arnó M, González MA, Zaragozá RJ. Synthesis of C-17-functionalized spongiane diterpenes: diastereoselective synthesis of (-)-spongian-16-oxo-17-al, (-)-acetyldendrillol-1, and (-)-aplyroseol-14. J Org Chem 2003; 68:1242-51. [PMID: 12585861 DOI: 10.1021/jo026536f] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The diastereoselective synthesis of spongiane diterpenes (-)-spongian-16-oxo-17-al 2, (-)-acetyldendrillol-1 15, and (-)-aplyroseol-14 16 has been completed efficiently via the common intermediate 14. Compound 14 was prepared in five synthetic steps from (+)-podocarp-8(14)-en-13-one 13, easily available from commercial (-)-abietic acid. The key steps in the syntheses were a regioselective reduction of a 1,4-dialdehyde unit, a one-pot acetalization-acetylation, and a translactonization. The synthesis of 15 and 16 has led us to a revision of the configuration at C-17 for natural (-)-acetyldendrillol-1 and a structural reassignment for aplyroseol-14. Thus, aplyroseol-14 16 presents an unprecedented delta-lactone-based structure for spongiane-type diterpenoids. A theoretical study including a series of ab initio calculations for the mechanism involved in the conversion of ester 22 into natural product 2 has also been carried out.
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Affiliation(s)
- Manuel Arnó
- Departamento de Química Orgánica, Facultad de Química, Universidad de Valencia, C/Dr. Moliner 50, E-46100 Burjassot, Valencia, Spain
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33
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Betancur-Galvis L, Zuluaga C, Arnó M, González MA, Zaragozá RJ. Cytotoxic effect (on tumor cells) and in vitro antiviral activity against herpes simplex virus of synthetic spongiane diterpenes. JOURNAL OF NATURAL PRODUCTS 2002; 65:189-192. [PMID: 11858754 DOI: 10.1021/np010206t] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A series of synthetic spongiane-type diterpenes have been tested in vitro for their potential antitumor and antiherpetic activity. Although the antiviral activity of these compounds against herpes simplex virus type 2 (HSV-2) was very weak, some compounds exhibited relevant cytotoxicity in the human tumor cell lines HeLa and HEp-2. The biological activity of formyl spongianes is reported for the first time. With the present study, some structure-activity trends are suggested for the cytotoxic activity of these sponge-derived natural products.
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34
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Karuso P, Scheuer PJ. Natural Products from Three Nudibranchs: Nembrotha kubaryana, Hypselodoris infucata and Chromodoris petechialis. Molecules 2002. [PMCID: PMC6146475 DOI: 10.3390/70100001-rev] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Nudibranchs are shell-less molluscs that are often brightly colored and seemingly defenseless against predation. However, these beautiful animals usually contain large amounts of diet-derived natural products that help defend them against predation. We have isolated a blue tetrapyrrole from Nembrotha kubaryana, the known nakafuran-8 and -9 from Hypselodoris infucata and spongiane-16-one from Chromodoris petechialis. These compounds have previously been found in other marine organisms, thus supporting a link between diet and natural products in the nudibranchs.
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Affiliation(s)
- Peter Karuso
- Department of Chemistry, Macquarie University, Sydney, NSW 2109, Australia. Telephone: (+612) 9850-8290, Fax (+612) 9850-8313
- Author to whom correspondence should be addressed; e-mail:
| | - Paul J. Scheuer
- Department of Chemistry, University of Hawaii, Honolulu HI, 96822, USA
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35
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Arnó M, González MA, Marı́n M, Zaragozá RJ. Synthesis of spongian diterpenes: (−)-spongian-16-oxo-17-al and (−)-acetyldendrillol-1. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(00)02339-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Goclik E, König GM, Wright AD, Kaminsky R. Pelorol from the tropical marine sponge Dactylospongia elegans. JOURNAL OF NATURAL PRODUCTS 2000; 63:1150-1152. [PMID: 10978215 DOI: 10.1021/np990502u] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
From the dichloromethane solubles of the tropical marine sponge Dactylospongia elegans, a new aromatic substituted sesquiterpene, pelorol (1), and the known sesquiterpene, ilimaquinone (2), were isolated. The structures of 1 and 2 were deduced from their spectroscopic data. The biological activities of compounds 1 and 2 were assessed in a variety of bioassays, and both compounds were found to have weak antitrypanosomal and antiplasmodial effects.
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Affiliation(s)
- E Goclik
- Institute for Pharmaceutical Biology, Technical University Braunschweig, Mendelssohnstrasse 1, D-38106 Braunschweig, Germany
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37
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Diastereoselective synthesis of spongian diterpenes. Total synthesis of the furanoditerpene (−)-spongia-13(16),14-diene. Tetrahedron 1999. [DOI: 10.1016/s0040-4020(99)00725-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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38
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39
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Higuchi R, Miyamoto T, Yamada K, Komori T. Cytotoxic and ichthyotoxic compounds from marine Opisthobranchia and soft coral. Toxicon 1998; 36:1703-5. [PMID: 9792187 DOI: 10.1016/s0041-0101(98)00163-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- R Higuchi
- Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
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40
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Affiliation(s)
- D J Faulkner
- Scripps Institution of Oceanography, University of California at San Diego, La Jolla 92093-0212, USA
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41
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