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Abstract
This review covers the literature published between January and December in 2018 for marine natural products (MNPs), with 717 citations (706 for the period January to December 2018) 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 (1554 in 469 papers for 2018), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included. The proportion of MNPs assigned absolute configuration over the last decade is also surveyed.
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Affiliation(s)
- Anthony R Carroll
- School of Environment and Science, Griffith University, Gold Coast, Australia. and Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Brent R Copp
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia and School of Environment and Science, Griffith University, Brisbane, Australia
| | - Robert A Keyzers
- Centre for Biodiscovery, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Michèle R Prinsep
- Chemistry, School of Science, University of Waikato, Hamilton, New Zealand
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Ng SY, Phan CS, Ishii T, Kamada T, Hamada T, Vairappan CS. Terpenoids from Marine Soft Coral of the Genus Xenia in 1977 to 2019. Molecules 2020; 25:molecules25225386. [PMID: 33217924 PMCID: PMC7698640 DOI: 10.3390/molecules25225386] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/10/2020] [Accepted: 11/12/2020] [Indexed: 01/02/2023] Open
Abstract
Members of the marine soft coral genus Xenia are rich in a diversity of diterpenes. A total of 199 terpenes consisting of 14 sesquiterpenes, 180 diterpenes, and 5 steroids have been reported to date. Xenicane diterpenes were reported to be the most common chemical skeleton biosynthesized by members of this genus. Most of the literature reported the chemical diversity of Xenia collected from the coral reefs in the South China Sea and the coastal waters of Taiwan. Although there was a brief review on the terpenoids of Xenia in 2015, the present review is a comprehensive overview of the structural diversity of secondary metabolites isolated from soft coral genus Xenia and their potent biological activity as reported between 1977 to 2019.
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Affiliation(s)
- Shean-Yeaw Ng
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu 88400, SBH, Malaysia; (S.-Y.N.); (C.-S.P.)
| | - Chin-Soon Phan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu 88400, SBH, Malaysia; (S.-Y.N.); (C.-S.P.)
| | - Takahiro Ishii
- Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan;
| | - Takashi Kamada
- Department of Materials and Life Science, Faculty of Science and Technology, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan;
| | - Toshiyuki Hamada
- Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan;
| | - Charles Santhanaraju Vairappan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu 88400, SBH, Malaysia; (S.-Y.N.); (C.-S.P.)
- Correspondence: ; Tel.: +60-88-320-000 (ext. 2353); Fax: +60-88-320-291
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Hamada T, Matsumoto Y, Phan CS, Kamada T, Onitsuka S, Okamura H, Iwagawa T, Arima N, Tani F, Vairappan CS. Aaptamine-Related Alkaloid from the Marine Sponge Aaptos aaptos. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19863935] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A new aaptamine-related alkaloid, 1,3-dioxolo [4,5- d] benzo [ de]-1,6-naphthyridine (methylenedioxyaaptamine, 1), was isolated from the organic extracts of the Bornean marine sponge Aaptos aaptos, together with a known aaptamine derivative, 8,9,9-trimethoxy-9 H-benzo [ de]-1,6-naphthyridine (2). The structure of compound 1 was elucidated by interpretation of its spectroscopic data. Two compounds were tested for their cytotoxic potentials against adult T-cell leukemia (ATL) cells, and compound 1 showed moderate cytotoxic potential.
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Affiliation(s)
- Toshiyuki Hamada
- Graduate School of Science and Engineering, Kagoshima University, Kagoshima, Japan
| | - Yoshito Matsumoto
- Graduate School of Science and Engineering, Kagoshima University, Kagoshima, Japan
| | - Chin-Soon Phan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
| | - Takashi Kamada
- Laboratory of Natural Products Chemistry, Department of Materials and Life Science, Faculty of Science and Technology, Shizuoka Institute of Science and Technology, Fukuroi, Japan
| | - Satoaki Onitsuka
- Graduate School of Science and Engineering, Kagoshima University, Kagoshima, Japan
| | - Hiroaki Okamura
- Graduate School of Science and Engineering, Kagoshima University, Kagoshima, Japan
| | - Tetsuo Iwagawa
- Graduate School of Science and Engineering, Kagoshima University, Kagoshima, Japan
| | - Naomichi Arima
- Division of Hematology and Immunology, Center for Chronic Viral Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Fumito Tani
- Institute for Material Chemistry and Engineering, Kyushu University, Fukuoka, Japan
| | - Charles S. Vairappan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
- Small Island Research Centre, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
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Su JH, Liu CI, Lu MC, Chang CI, Hsieh MY, Lin YC, Dai CF, Zhang YH, Lin ZY, Lin YS. New secondary metabolite with cytotoxicity from spawning soft coral Asterospicularia laurae in Taiwan. Nat Prod Res 2019; 35:967-975. [PMID: 31364881 DOI: 10.1080/14786419.2019.1614579] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We have conducted a long-term research on the Taiwanese soft coral Asterospicularia laurae, which resulted in many xenicane-type diterpenoids such as asterolaurins A-M from A. laurae coral tissues during the non-spawning period were isolated. Here, we report a new xenicane diterpenoid, asterolaurin N (1), along with three known xenicane-type monocarbocyclic diterpenes [13-epi-9-desacetylxenicin (2), xeniolide-B 9-acetate (3) and asterolaurin I (4)] from A. laurae during the spawning period. The structures of the new secondary metabolite were established with an extensive spectroscopic analysis. The 1D and 2D nuclear magnetic resonance (NMR) data of the compounds were discussed. We discovered that the C-15 of 1 contains two methyl groups on a carbon bearing an acetyl group, which has not been reported previously. In addition, Compounds 1, 3, and 4 showed selective cytotoxic activity against Molt 4, while 2 exhibited significant cytotoxicity against Molt 4, K562, Sup-T1 and U937 cell lines.
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Affiliation(s)
- Jui-Hsin Su
- National Museum of Marine Biology & Aquarium, Pingtung, Taiwan
| | - Chih-I Liu
- Department of Nursing, Meiho University, Pingtung, Taiwan
| | - Mei-Chin Lu
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, Taiwan
| | - Chi-I Chang
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Min-Ying Hsieh
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, Taiwan
| | - Yu-Chi Lin
- National Research Institute of Chinese Medicine, Taipei, Taiwan
| | - Chang-Feng Dai
- Institute of Oceanography, National Taiwan University, Taipei, Taiwan
| | - Ya-Han Zhang
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Zheng-Yu Lin
- Department of Biological Science and Technology, Meiho University, Pingtung, Taiwan
| | - Yun-Sheng Lin
- Department of Biological Science and Technology, Meiho University, Pingtung, Taiwan
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Bioactive Cembranoids from the Soft Coral Genus Sinularia sp. in Borneo. Mar Drugs 2018; 16:md16040099. [PMID: 29561805 PMCID: PMC5923386 DOI: 10.3390/md16040099] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/27/2018] [Accepted: 03/05/2018] [Indexed: 12/15/2022] Open
Abstract
Soft corals are known to be prolific producers of a wide spectrum of biologically active cembranoids. One new cembranoid, sinularolide F (2), along with three known compounds, cembranolide (1), (E,E,E)-6,10,14-trimethyl-3-methylene-cis-3α,4,5,8,9,12,13,15α-octahydrocyclo tetradeca[β]furan-2(3H)-one (3), and denticulatolide (4), were isolated from the Bornean soft coral Sinularia sp. Compounds 2 and 4 showed potential anti-inflammatory activities against lipopolysaccharide-stimulated RAW 264.7 with IC50 values less than 6.25 µg/mL and anticancer activity against HL60 cell lines. The compounds' mechanisms of action were investigated via the Western blot evaluation of their protein markers. These activities could be attributed to the presence of tertiary methyl at C-8 and the compounds' 3D configurations.
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Kamada T, Phan CS, Hamada T, Hatai K, Vairappan CS. Cytotoxic and Antifungal Terpenoids from Bornean Soft Coral, Sinularia flexibilis. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300106] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
One new cembrane, ent -sinuflexibilin D (1), along with seven known compounds (2-8) were isolated from a population of Bornean soft coral Sinularia flexibilis. Their structures were elucidated on the basis of spectroscopic analyses. Cytotoxicity and antifungal activities of these compounds were evaluated in vitro. In addition, muurolene 7 was first isolates from a marine source.
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Affiliation(s)
- Takashi Kamada
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - Chin-Soon Phan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - Toshiyuki Hamada
- Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan
| | - Kishio Hatai
- Microbiology and Fish Disease Laboratory, Borneo Marine Research Institute, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - Charles Santhanaraju Vairappan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
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Phan CS, Kamada T, Ishii T, Hamada T, Vairappan CS. A New Guaiane-type Sesquiterpenoid from a Bornean Soft Coral, Xenia stellifera. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A new guaiane-type sesquiterpenoid, 10β- O-methyl-1αH,5αH-guaia-6-en-4β-ol (1) along with two known compounds, 10- O -methyl alismoxide (2) and alismoxide (3) were isolated from a population of Bornean soft coral Xenia stellifera. The structure of this metabolite was elucidated based on spectroscopic data such as NMR and HRESIMS. These compounds were evaluated for their biological activity against adult T-cell leukemia cell line.
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Affiliation(s)
- Chin-Soon Phan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - Takashi Kamada
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - Takahiro Ishii
- Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
| | - Toshiyuki Hamada
- Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan
| | - Charles Santhanaraju Vairappan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
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Phan CS, Kamada T, Ishii T, Hamada T, Vairappan CS. 12-Epi-9-deacetoxyxenicin, new cytotoxic diterpenoid from a Bornean soft coral, Xenia sp. Nat Prod Res 2017; 33:808-813. [DOI: 10.1080/14786419.2017.1410812] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Chin-Soon Phan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah , Kota Kinabalu, Malaysia
| | - Takashi Kamada
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah , Kota Kinabalu, Malaysia
| | - Takahiro Ishii
- Faculty of Agriculture, Department of Bioscience and Biotechnology, University of the Ryukyus , Nishihara, Japan
| | - Toshiyuki Hamada
- Graduate School of Science and Engineering, Kagoshima University , Kagoshima, Japan
| | - Charles Santhanaraju Vairappan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah , Kota Kinabalu, Malaysia
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