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Catalá TS, Speidel LG, Wenzel-Storjohann A, Dittmar T, Tasdemir D. Bioactivity profile of dissolved organic matter and its relation to molecular composition. NATURAL PRODUCTS AND BIOPROSPECTING 2023; 13:32. [PMID: 37721596 PMCID: PMC10507005 DOI: 10.1007/s13659-023-00395-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 08/30/2023] [Indexed: 09/19/2023]
Abstract
Dissolved organic matter (DOM) occupies a huge and uncharted molecular space. Given its properties, DOM can be presented as a promising biotechnological resource. However, research into bioactivities of DOM is still in early stages. In this study, the biotechnological potential of terrestrial and marine DOM, its molecular composition and their relationships are investigated. Samples were screened for their in vitro antibacterial, antifungal, anticancer and antioxidant activities. Antibacterial activity was detected against Staphylococcus aureus in almost all DOM samples, with freshwater DOM showing the lowest IC50 values. Most samples also inhibited Staphylococcus epidermidis, and four DOM extracts showed up to fourfold higher potency than the reference drug. Antifungal activity was limited to only porewater DOM towards human dermatophyte Trichophyton rubrum. No significant in vitro anticancer activity was observed. Low antioxidant potential was exerted. The molecular characterization by FT-ICR MS allowed a broad compositional overview. Three main distinguished groups have been identified by PCoA analyses. Antibacterial activities are related to high aromaticity content and highly-unsaturated molecular formulae (O-poor). Antifungal effect is correlated with highly-unsaturated molecular formulae (O-rich). Antioxidant activity is positively related to the presence of double bonds and polyphenols. This study evidenced for the first time antibacterial and antifungal activity in DOM with potential applications in cosmeceutical, pharmaceutical and aquaculture industry. The lack of cytotoxicity and the almost unlimited presence of this organic material may open new avenues in future marine bioprospecting efforts.
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Affiliation(s)
- Teresa S Catalá
- Global Society Institute, Wälderhaus, Hamburg, Germany.
- Organization for Science, Education and Global Society gGmbH, Stuttgart, Germany.
- ICBM-MPI Bridging Group for Marine Geochemistry, Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, Oldenburg, Germany.
| | - Linn G Speidel
- ICBM-MPI Bridging Group for Marine Geochemistry, Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, Oldenburg, Germany
- Geological Institute, Department of Earth Sciences, ETH Zurich, 8092, Zurich, Switzerland
| | - Arlette Wenzel-Storjohann
- GEOMAR Centre for Marine Biotechnology, Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106, Kiel, Germany
| | - Thorsten Dittmar
- ICBM-MPI Bridging Group for Marine Geochemistry, Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, Oldenburg, Germany
- Helmholtz Institute for Functional Marine Biodiversity, University of Oldenburg, Oldenburg, Germany
| | - Deniz Tasdemir
- GEOMAR Centre for Marine Biotechnology, Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106, Kiel, Germany
- Kiel University, Christian-Albrechts-Platz 4, 24118, Kiel, Germany
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Kiyotaki K, Kayukawa T, Imayoshi A, Tsubaki K. Total Syntheses of FR-901235, Auxarthrones A-D, and Lamellicolic Anhydride. Org Lett 2020; 22:9220-9224. [PMID: 33196202 DOI: 10.1021/acs.orglett.0c03401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In our previous study, an unusual rearrangement reaction was discovered whereby dinaphthyl ketones with three hydroxy groups at restricted positions were transformed into a phenalenone ring and a benzene ring. Using the rearrangement as a key reaction, the first total syntheses of FR-901235 and auxarthrones A-D from an unstable triketone common intermediate are described. Furthermore, lamellicolic anhydride was synthesized from the triketone. This conversion is part of the putative biosynthetic pathway and was achieved experimentally for the first time.
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Affiliation(s)
- Kotaro Kiyotaki
- Graduate School for Life and Environmental Sciences, Kyoto Prefectural University 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto 606-8522 Japan
| | - Takuto Kayukawa
- Graduate School for Life and Environmental Sciences, Kyoto Prefectural University 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto 606-8522 Japan
| | - Ayumi Imayoshi
- Graduate School for Life and Environmental Sciences, Kyoto Prefectural University 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto 606-8522 Japan
| | - Kazunori Tsubaki
- Graduate School for Life and Environmental Sciences, Kyoto Prefectural University 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto 606-8522 Japan
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Uchida R, Kondo A, Yagi A, Nonaka K, Masuma R, Kobayashi K, Tomoda H. Simpotentin, a new potentiator of amphotericin B activity against Candida albicans, produced by Simplicillium minatense FKI-4981. J Antibiot (Tokyo) 2018; 72:134-140. [PMID: 30532035 DOI: 10.1038/s41429-018-0128-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 11/09/2018] [Indexed: 11/09/2022]
Abstract
Simpotentin, a new potentiator of amphotericin B activity against Candida albicans and Cryptococcus neoformans, was isolated from the culture broth of Simplicillium minatense FKI-4981 by Diaion HP-20 column chromatography, centrifugal partition chromatography, and preparative HPLC. The structure of simpotentin was elucidated by spectroscopic analyses including NMR and MS. The compound has a mannose core to which two medium-chain fatty acids are linked. Simpotentin was found to potentiate amphotericin B activity against C. albicans by the microdilution method.
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Affiliation(s)
- Ryuji Uchida
- Microbial Chemistry and Medical Research Laboratories, Graduate School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.,Department of Natural Product Chemistry, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai, Miyagi, 981-8558, Japan
| | - Ariko Kondo
- Microbial Chemistry and Medical Research Laboratories, Graduate School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Akiho Yagi
- Microbial Chemistry and Medical Research Laboratories, Graduate School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.,Department of Natural Product Chemistry, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai, Miyagi, 981-8558, Japan
| | - Kenichi Nonaka
- Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Rokurou Masuma
- Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Keisuke Kobayashi
- Microbial Chemistry and Medical Research Laboratories, Graduate School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Hiroshi Tomoda
- Microbial Chemistry and Medical Research Laboratories, Graduate School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
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Kamdem RST, Pascal W, Rehberg N, van Geelen L, Höfert SP, Knedel TO, Janiak C, Sureechatchaiyan P, Kassack MU, Lin W, Kalscheuer R, Liu Z, Proksch P. Metabolites from the endophytic fungus Cylindrocarpon sp. isolated from tropical plant Sapium ellipticum. Fitoterapia 2018; 128:175-179. [PMID: 29778573 DOI: 10.1016/j.fitote.2018.05.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/12/2018] [Accepted: 05/16/2018] [Indexed: 10/16/2022]
Abstract
Three new polyketides, cylindrocarpones A-C (1-3), two new pyridone alkaloids, cylindrocarpyridones A-B (5-6), a new pyrone cylindropyrone (7), together with seven know compounds were isolated from the endophytic fungus, Cylindrocarpon sp., obtained from the tropical plant Sapium ellipticum. The structures of the new compounds were elucidated by extensive analysis of their spectroscopic data (1D and 2D NMR, HRESIMS). The absolute configuration of 19-O-methyl-pyrrocidine B (13) was confirmed by X-ray analysis. All isolated compounds were screened for their cytotoxic and antibacterial activities. Pyrrocidine A (12) exhibited potent cytotoxicity against the human ovarian cancer cell line A2780 with an IC50 value of 1.7 μM. 19-O-Methyl-pyrrocidine B (13) showed moderate antibacterial activity against S. aureus ATCC25923 and ATCC700699 with MIC values of 50 and 25 μM, respectively.
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Affiliation(s)
- Ramsay S T Kamdem
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany; Department of Organic Chemistry, Higher Teachers' Training College, University of Yaounde I, P. O. Box 47, Yaounde, Cameroon.
| | - Wafo Pascal
- Department of Organic Chemistry, Higher Teachers' Training College, University of Yaounde I, P. O. Box 47, Yaounde, Cameroon
| | - Nidja Rehberg
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany
| | - Lasse van Geelen
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany
| | - Simon-Patrick Höfert
- Institute of Inorganic and Structural Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany
| | - Tim-Oliver Knedel
- Institute of Inorganic and Structural Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany
| | - Christoph Janiak
- Institute of Inorganic and Structural Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany
| | - Parichat Sureechatchaiyan
- Institute of Inorganic and Structural Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany
| | - Matthias U Kassack
- Institute of Inorganic and Structural Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany
| | - Wenhan Lin
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China
| | - Rainer Kalscheuer
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany
| | - Zhen Liu
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany.
| | - Peter Proksch
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany.
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Isocoumarins, miraculous natural products blessed with diverse pharmacological activities. Eur J Med Chem 2016; 116:290-317. [PMID: 27155563 DOI: 10.1016/j.ejmech.2016.03.025] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Revised: 03/08/2016] [Accepted: 03/10/2016] [Indexed: 12/17/2022]
Abstract
Isocoumarins are lactonic natural products abundant in microbes and higher plants. These are considered an amazing scaffold consecrated with more or less all types of pharmacological applications. This review is complementary to the earlier reviews and aims to focus the overlooked aspects of their fascinating chemistry with special emphasis on their classification and diverse biological activities with some SAR conclusions. The most recent available literature on the structural diversity and biological activity of these natural products has been reviewed.
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Elsebai MF, Saleem M, Tejesvi MV, Kajula M, Mattila S, Mehiri M, Turpeinen A, Pirttilä AM. Fungal phenalenones: chemistry, biology, biosynthesis and phylogeny. Nat Prod Rep 2014; 31:628-45. [DOI: 10.1039/c3np70088g] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Abstract
This review covers the literature published in 2011 for marine natural products, with 870 citations (558 for the period January to December 2011) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1152 for 2011), 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.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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Elsebai MF, Kehraus S, Lindequist U, Sasse F, Shaaban S, Gütschow M, Josten M, Sahl HG, König GM. Antimicrobial phenalenone derivatives from the marine-derived fungus Coniothyrium cereale. Org Biomol Chem 2010; 9:802-8. [PMID: 21103541 DOI: 10.1039/c0ob00625d] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The marine-derived fungus Coniothyrium cereale was isolated from the green alga Enteromorpha sp. and found to produce the new phenalenone derivatives 1-7 as well as the known compounds lactone 8, (-) sclerodin (9), lamellicolic anhydride (10), (-) scleroderolide (11), and (-) sclerodione (12). The structures of these closely related compounds were established from extensive spectroscopic investigations on the basis of one and two dimensional NMR spectroscopic studies ((1)H, (13)C, COSY, NOESY, HSQC and HMBC) as well as mass spectrometric analysis (LC/MS, HREIMS and HRESIMS), UV and IR spectra. Compounds 5 and 11 showed the same antimicrobial activity toward Staphylococcus aureus SG 511 with an MIC value of 24 μM. The presence of a diketo-lactone ring as in compounds 5 and 11 was found to be essential for this activity. In agar diffusion assays with Mycobacterium phlei considerable inhibition zones were observed for compounds 2, 4 and 7. Compounds 1, 5 and 9 showed potent inhibition of human leukocyte elastase (HLE) with IC(50) values of 7.2, 13.3 and 10.9 μM, respectively.
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Affiliation(s)
- Mahmoud Fahmi Elsebai
- Institute for Pharmaceutical Biology, University of Bonn, Nussallee 6, 53115, Bonn, Germany
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