1
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Zong Y, Yang JJ, Li K, Pei YF, Hou HY, Zhang Y, Wang CL, Li PL. Litoamentenes A-K, eleven undescribed cembranoids with cytotoxicity from the South China Sea soft coral Litophyton amentaceum. PHYTOCHEMISTRY 2024; 223:114113. [PMID: 38697241 DOI: 10.1016/j.phytochem.2024.114113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/13/2024] [Accepted: 04/28/2024] [Indexed: 05/04/2024]
Abstract
Eleven undescribed cembrane-type diterpenoids, named litoamentenes A-K (1-11), were isolated from the soft coral Litophyton amentaceum collected from the South China Sea. Their structures were elucidated by extensive analysis of spectroscopic data, comparison with the literature data, single crystal X-ray diffraction, quantum chemical calculations and TDDFT-ECD calculations. This is the first systematic investigation of L. amentaceum. In particular, compounds 1-3 are cembrane-type norditerpenoids that lack isopropyl side chains. Compound 6 is a cembrane-type norditerpenoid without a methyl group at C-4, the first natural product identified with this carbon skeleton. Compounds 6, 9 and 10 showed modest cytotoxicity against several human cancer cell lines with IC50 values ranging from 3.99 to 14.56 μM.
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Affiliation(s)
- Yuan Zong
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Department, Ocean University of China, Qingdao, Shandong, 266003, China; Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao, Shandong 266235, China
| | - Jun-Jie Yang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Department, Ocean University of China, Qingdao, Shandong, 266003, China; Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao, Shandong 266235, China
| | - Kai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Department, Ocean University of China, Qingdao, Shandong, 266003, China; Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao, Shandong 266235, China
| | - Yan-Fang Pei
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Department, Ocean University of China, Qingdao, Shandong, 266003, China; Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao, Shandong 266235, China
| | - Hui-Yue Hou
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Department, Ocean University of China, Qingdao, Shandong, 266003, China; Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao, Shandong 266235, China
| | - Yue Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Department, Ocean University of China, Qingdao, Shandong, 266003, China; Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao, Shandong 266235, China
| | - Ci-Li Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Department, Ocean University of China, Qingdao, Shandong, 266003, China; Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao, Shandong 266235, China; State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China
| | - Ping-Lin Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Department, Ocean University of China, Qingdao, Shandong, 266003, China; Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao, Shandong 266235, China.
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2
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Zhang N, Xu W, Yan Y, Chen M, Li H, Chen L. Cembrane diterpenoids: Chemistry and pharmacological activities. PHYTOCHEMISTRY 2023; 212:113703. [PMID: 37164145 DOI: 10.1016/j.phytochem.2023.113703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 04/28/2023] [Accepted: 05/02/2023] [Indexed: 05/12/2023]
Abstract
Cembrane diterpenoids (cembranoids), characterized by a 14-membered carbon ring and wide variety of functional groups, found in marine and terrestrial organisms. Many studies have shown that cembrane diterpenoids have cytotoxic and anti-inflammatory activities and are widely used in the development of new drugs. This review covered publications from 2011 to 2022 and classified the cembrane-type diterpenoids into isopropyl (ene) type, γ-lactone or unsaturated five-membered ring, δ-lactone or unsaturated six-membered ring, ε-lactone or unsaturated seven-membered ring, and other cembrane diterpenes. In addition, the biological activity and structure-activity relationship were summarized. This will provide guidance for new cembrane-type diterpenes as lead compounds to explore their potential application for treating cancer and inflammatory diseases.
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Affiliation(s)
- Na Zhang
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Wei Xu
- Institute of Structural Pharmacology & TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Yushu Yan
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Mengjie Chen
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Hua Li
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China; Institute of Structural Pharmacology & TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China.
| | - Lixia Chen
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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3
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Ren L, Leng X, Li T, Liu J, Wang W, Yan X, Yan X, He S. Four new cembranoids from the South China Sea soft coral Sarcophyton trocheliophorum. Nat Prod Res 2023; 37:39-46. [PMID: 34569875 DOI: 10.1080/14786419.2021.1948041] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Four new cembrane diterpenes, 1,13-di-epi-13-acetoxy launine P (1), 13-oxo-thunbergol (2), isocrassumol B (3) and 7α, 8α-sarcophine (4), together with two known launine P (5) and sarcophytonin B (6), were isolated from the extract of the South China Sea soft coral Sarcophyton trocheliophorum. The structures were elucidated by spectroscopic analysis, ECD analysis and comparison with literature data. All compounds were tested for their antimicrobial activity and antiviral activity. Compounds 1, 2 and 5 were found to exhibit weak antibacterial activity, while 6 showed strong inhibition activity against Staphylococcus aureus and Bacillus subtilis (MIC<0.5 µg/mL). Compounds 2 showed moderate inhibitory effect against influenza A viruses H1N1 with IC50 of 17.8 μM.
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Affiliation(s)
- Lu Ren
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Xue Leng
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Te Li
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Jing Liu
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Wei Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Xiaojun Yan
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Xia Yan
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Shan He
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
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4
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Chemical Constituents from the Octocoral Lobophytum sarcophytoides. Chem Nat Compd 2022. [DOI: 10.1007/s10600-022-03896-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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5
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Li J, Zeng Y, Li W, Luo H, Zhang H, Guo Y. Xishaglaucumins A—J, New Cembranoids with
Anti‐Inflammatory
Activities from the South China Sea Soft Coral
Sarcophyton glaucum. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jin‐Feng Li
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio‐resources, Institute of Tropical Bioscience and Biotechnology Chinese Academy of Tropical Agricultural Sciences Haikou Hainan 571101 China
- State Key Laboratory of Drug Research Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi‐Tech Park Shanghai 201203 China
- Ocean College of Hebei Agricultural University Qinhuangdao Hebei 066000 China
| | - Yan‐Bo Zeng
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio‐resources, Institute of Tropical Bioscience and Biotechnology Chinese Academy of Tropical Agricultural Sciences Haikou Hainan 571101 China
- Ocean College of Hebei Agricultural University Qinhuangdao Hebei 066000 China
| | - Wang‐Sheng Li
- State Key Laboratory of Drug Research Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi‐Tech Park Shanghai 201203 China
- Key Laboratory of Zhanjiang for Research and Development Marine Microbial Resources in the Beibu Guif Rim, Marine Biomedical Research Institute Guangdong Medical University Zhanjiang Guangdong 524023 China
| | - Hui Luo
- Key Laboratory of Zhanjiang for Research and Development Marine Microbial Resources in the Beibu Guif Rim, Marine Biomedical Research Institute Guangdong Medical University Zhanjiang Guangdong 524023 China
| | - Hai‐Yan Zhang
- State Key Laboratory of Drug Research Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi‐Tech Park Shanghai 201203 China
| | - Yue‐Wei Guo
- State Key Laboratory of Drug Research Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi‐Tech Park Shanghai 201203 China
- Bohai rim Advanced Research Institute for Drug Discovery Yantai Shandong 264000 China
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6
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Chen ZH, Gao TR, Yang M, Yao LG, Guo YW. Further new cembranoids from the South China Sea soft coral Sarcophyton trocheliophorum. Fitoterapia 2021; 151:104902. [PMID: 33819542 DOI: 10.1016/j.fitote.2021.104902] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/29/2021] [Accepted: 03/29/2021] [Indexed: 11/17/2022]
Abstract
Two new cembranoids, ximaosarcophytols A (1) and B (2), together with three related known ones (3-5), were isolated from the soft coral Sarcophyton trocheliophorum collected off the Ximao Island, Hainan Province, China. Their structures including the absolute configurations were elucidated by extensive spectroscopic analysis, TDDFT/ECD (time-dependent density functional theory/electronic circular dichroism) calculations and comparison with the reported data.
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Affiliation(s)
- Zi-Hui Chen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Tian-Run Gao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Min Yang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Li-Gong Yao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
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7
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Sun LL, Li WS, Li J, Zhang HY, Yao LG, Luo H, Guo YW, Li XW. Uncommon Diterpenoids from the South China Sea Soft Coral Sinularia humilis and Their Stereochemistry. J Org Chem 2021; 86:3367-3376. [PMID: 33497233 DOI: 10.1021/acs.joc.0c02742] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The chemical investigation of the South China Sea soft coral Sinularia humilis has resulted in the isolation of a library of diverse diterpenoids, including four new cembranoids, namely, humilisins A-D (1-4), two new uncommon diterpenoids possessing a tetradecahydrocyclopenta[3',4']cyclobuta[1',2':4,5]cyclonona[1,2-b]oxirene ring system, namely, humilisins E and F (5 and 6), and eight known related compounds (7-14). Humilisin A (1) is the first cembranoid with an ether linkage between C-3 and C-7. The structures and absolute configurations of 1-8 were determined by extensive spectroscopic data analyses, chemical reactions, and a series of quantum chemical calculations including quantum mechanical-nuclear magnetic resonance (QM-NMR), time-dependent density functional theory-electronic circular dichroism (TDDFT-ECD), and optical rotatory dispersion (ORD) methods. In bioassay, compound 6 displayed anti-inflammatory activity in lipopolysaccharide (LPS)-stimulated BV-2 microglia cells.
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Affiliation(s)
- Li-Li Sun
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China.,University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Wang-Sheng Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China.,The Key Lab of Zhanjiang for R&D Marine Microbial Resources in the Beibu GulfRim, the Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China
| | - Jie Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China.,Nano Science and Technology Institute, University of Science and Technology of China, 166 Ren Ai Road, Suzhou 215123, China
| | - Hai-Yan Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China.,CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Li-Gong Yao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Hui Luo
- The Key Lab of Zhanjiang for R&D Marine Microbial Resources in the Beibu GulfRim, the Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China.,University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Xu-Wen Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China.,University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
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8
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Isolation and Structure Elucidation of Cembranoids from a Dongsha Atoll Soft Coral Sarcophyton stellatum. Mar Drugs 2018; 16:md16060210. [PMID: 29903990 PMCID: PMC6025080 DOI: 10.3390/md16060210] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 05/31/2018] [Accepted: 06/05/2018] [Indexed: 12/27/2022] Open
Abstract
Six new polyoxygenated cembrane-based diterpenoids, stellatumolides A–C (1–3), stellatumonins A and B (4 and 5), and stellatumonone (6), were isolated together with ten known related compounds (7–16) from the ethyl acetate (EtOAc) extract of soft coral Sarcophyton stellatum. The structures of the new compounds were established by extensive spectroscopic analyses, including 1D and 2D nuclear magnetic resonance (NMR) spectroscopy and data comparison with related structures. Compounds 8 and 14 were isolated from a natural source for the first time. The isolated metabolites were shown to be not cytotoxic against a limited panel of cancer cells. Compound 9 showed anti-inflammatory activity by reducing the expression of proinflammatory cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) proteins in lipopolysaccharide (LPS)-stimulated mouse leukaemic monocyte macrophage (RAW 264.7) cells.
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9
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van de Water JAJM, Allemand D, Ferrier-Pagès C. Host-microbe interactions in octocoral holobionts - recent advances and perspectives. MICROBIOME 2018; 6:64. [PMID: 29609655 PMCID: PMC5880021 DOI: 10.1186/s40168-018-0431-6] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 03/01/2018] [Indexed: 05/05/2023]
Abstract
Octocorals are one of the most ubiquitous benthic organisms in marine ecosystems from the shallow tropics to the Antarctic deep sea, providing habitat for numerous organisms as well as ecosystem services for humans. In contrast to the holobionts of reef-building scleractinian corals, the holobionts of octocorals have received relatively little attention, despite the devastating effects of disease outbreaks on many populations. Recent advances have shown that octocorals possess remarkably stable bacterial communities on geographical and temporal scales as well as under environmental stress. This may be the result of their high capacity to regulate their microbiome through the production of antimicrobial and quorum-sensing interfering compounds. Despite decades of research relating to octocoral-microbe interactions, a synthesis of this expanding field has not been conducted to date. We therefore provide an urgently needed review on our current knowledge about octocoral holobionts. Specifically, we briefly introduce the ecological role of octocorals and the concept of holobiont before providing detailed overviews of (I) the symbiosis between octocorals and the algal symbiont Symbiodinium; (II) the main fungal, viral, and bacterial taxa associated with octocorals; (III) the dominance of the microbial assemblages by a few microbial species, the stability of these associations, and their evolutionary history with the host organism; (IV) octocoral diseases; (V) how octocorals use their immune system to fight pathogens; (VI) microbiome regulation by the octocoral and its associated microbes; and (VII) the discovery of natural products with microbiome regulatory activities. Finally, we present our perspectives on how the field of octocoral research should move forward, and the recognition that these organisms may be suitable model organisms to study coral-microbe symbioses.
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Affiliation(s)
| | - Denis Allemand
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, 98000, Monaco, Monaco
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10
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Anti-Inflammatory Dembranoids from the Soft Coral Lobophytum crassum. Mar Drugs 2017; 15:md15100327. [PMID: 29065512 PMCID: PMC5666433 DOI: 10.3390/md15100327] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/19/2017] [Accepted: 10/20/2017] [Indexed: 11/17/2022] Open
Abstract
Cembrane-type diterpenoids are among the most frequently encountered natural products from the soft corals of the genus Lobophytum. In the course of our investigation to identify anti-inflammatory constituents from a wild-type soft coral Lobophytum crassum, two new cembranoids, lobophyolide A (1) and B (2), along with five known compounds (3–7), were isolated. The structures of these natural products were identified using NMR and MS spectroscopic analyses. Compound 1 was found to possess the first identified α-epoxylactone group among all cembrane-type diterpenoids. The in vitro anti-inflammatory effect of compounds 1–5 was evaluated. The results showed that compounds 1–5 not only reduced IL-12 release, but also attenuated NO production in LPS-activated dendritic cells. Our data indicated that the isolated series of cembrane-type diterpenoids demonstrated interesting structural features and anti-inflammatory activity which could be further developed into therapeutic entities.
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11
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Chao CH, Li WL, Huang CY, Ahmed AF, Dai CF, Wu YC, Lu MC, Liaw CC, Sheu JH. Isoprenoids from the Soft Coral Sarcophyton glaucum. Mar Drugs 2017; 15:md15070202. [PMID: 28653983 PMCID: PMC5532644 DOI: 10.3390/md15070202] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 06/16/2017] [Accepted: 06/22/2017] [Indexed: 01/22/2023] Open
Abstract
Five new isoprenoids, 3,4,8,16-tetra-epi-lobocrasol (1), 1,15β-epoxy-deoxysarcophine (2), 3,4-dihydro-4α,7β,8α-trihydroxy-Δ2-sarcophine (3), ent-sarcophyolide E (4), and 16-deacetyl- halicrasterol B (5) and ten known compounds 6‒15, were characterized from the marine soft coral Sarcophyton glaucum, collected off Taitung coastline. Their structures were defined by analyzing spectra data, especially 2D NMR and electronic circular dichroism (ECD). The structure of the known compound lobocrasol (7) was revised. Cytotoxicity potential of the isolated compounds was reported, too.
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Affiliation(s)
- Chih-Hua Chao
- School of Pharmacy, China Medical University, Taichung 404, Taiwan.
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404, Taiwan.
| | - Wen-Liang Li
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
| | - Chiung-Yao Huang
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
| | - Atallah F Ahmed
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Chang-Feng Dai
- Institute of Oceanography, National Taiwan University, Taipei 112, Taiwan.
| | - Yang-Chang Wu
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
| | - Mei-Chin Lu
- Graduate Institute of Marine Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan.
- National Museum of Marine Biology & Aquarium, Pingtung 944, Taiwan.
| | - Chih-Chuang Liaw
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
| | - Jyh-Horng Sheu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan.
- Frontier Center for Ocean Science and Technology, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
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12
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Liang LF, Chen WT, Mollo E, Yao LG, Wang HY, Xiao W, Guo YW. Sarcophytrols G - L, Novel Minor Metabolic Components from South China Sea Soft Coral Sarcophyton trocheliophorum Marenzeller. Chem Biodivers 2017; 14. [PMID: 28323380 DOI: 10.1002/cbdv.201700079] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 03/17/2017] [Indexed: 12/31/2022]
Abstract
Minor metabolic components, six new cembranoids sarcophytrols G - L (1 - 6) along with two known related analogues 7 and 8, were isolated from the South China Sea soft coral Sarcophyton trocheliophorum. Their structures were elucidated by extensive spectroscopic analyses (1D-, 2D-NMR, and ESI-MS) as well as comparison with literature data. As part of our ongoing research project for discovering bioactive substances from Chinese marine invertebrates, compounds 1 - 8 were tested for their inhibitory activity against protein tyrosine phosphatase 1B (PTP1B), a key target for the treatment of Type-II diabetes and obesity. However, none of them exhibited potent PTP1B inhibitory activities.
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Affiliation(s)
- Lin-Fu Liang
- College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, P. R. China.,State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech park, Shanghai, 201203, P. R. China
| | - Wen-Ting Chen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech park, Shanghai, 201203, P. R. China
| | - Ernesto Mollo
- Institute of Biomolecular Chemistry (ICB)-CNR, Via Campi Flegrei, 34, IT-80078, Pozzuoli, Naples
| | - Li-Gong Yao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech park, Shanghai, 201203, P. R. China
| | - He-Yao Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech park, Shanghai, 201203, P. R. China
| | - Wei Xiao
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, P. R. China
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech park, Shanghai, 201203, P. R. China
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Ahmed AF, Tsai CR, Huang CY, Wang SY, Sheu JH. Klyflaccicembranols A-I, New Cembranoids from the Soft Coral Klyxum flaccidum. Mar Drugs 2017; 15:md15010023. [PMID: 28117716 PMCID: PMC5295243 DOI: 10.3390/md15010023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 01/11/2017] [Accepted: 01/16/2017] [Indexed: 01/22/2023] Open
Abstract
New cembranoids klyflaccicembranols A–I (1–9), along with gibberosene D (10), have been isolated from the organic extract of a Formosan soft coral Klyxum flaccidum. Their structures were established by extensive spectroscopic analyses, including 2D NMR spectroscopy, and spectral data comparison with related structures. The cytotoxicity of the isolated metabolites, as well as their nitric oxide (NO) inhibitory activity, were evaluated and reported. Metabolites 2, 4, 6, 8 and 9 were found to exhibit variable activities against a limited panel of cancer cell lines in a range of IC50 16.5–49.4 μM. Among the tested cembranoids, compounds 4, 5, 6, and 9 significantly inhibited NO production in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages at a dose of 50 μg/mL.
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Affiliation(s)
- Atallah F Ahmed
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
| | - Chia-Ruei Tsai
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
| | - Chiung-Yao Huang
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
| | - Sheng-Yang Wang
- Department of Forestry, National Chung Hsing University, Taichung 40227, Taiwan.
| | - Jyh-Horng Sheu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
- Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 80756, Taiwan.
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan.
- Frontier Center for Ocean Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
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14
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Zhao M, Cheng S, Yuan W, Xi Y, Li X, Dong J, Huang K, Gustafson KR, Yan P. Cembranoids from a Chinese Collection of the Soft Coral Lobophytum crassum. Mar Drugs 2016; 14:md14060111. [PMID: 27271640 PMCID: PMC4926070 DOI: 10.3390/md14060111] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 05/19/2016] [Accepted: 05/23/2016] [Indexed: 11/22/2022] Open
Abstract
Ten new cembrane-based diterpenes, locrassumins A–G (1–7), (–)-laevigatol B (8), (–)-isosarcophine (9), and (–)-7R,8S-dihydroxydeepoxysarcophytoxide (10), were isolated from a South China Sea collection of the soft coral Lobophytum crassum, together with eight known analogues (11–18). The structures of the new compounds were determined by extensive spectroscopic analysis and by comparison with previously reported data. Locrassumin C (3) possesses an unprecedented tetradecahydrobenzo[3,4]cyclobuta[1,2][8]annulene ring system. Compounds 1, 7, 12, 13, and 17 exhibited moderate inhibition against lipopolysaccharide (LPS)-induced nitric oxide (NO) production with IC50 values of 8–24 μM.
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Affiliation(s)
- Min Zhao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China.
| | - Shimiao Cheng
- The Fifth Affiliated Hospital, Wenzhou Medical University, Lishui 323000, China.
| | - Weiping Yuan
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China.
| | - Yiyuan Xi
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China.
| | - Xiubao Li
- Key Laboratory of Marine Bio-Resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
| | - Jianyong Dong
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China.
| | - Kexin Huang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China.
| | - Kirk R Gustafson
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702-1201, USA.
| | - Pengcheng Yan
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China.
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702-1201, USA.
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15
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Gomaa MN, Soliman K, Ayesh A, Abd El-Wahed A, Hamza Z, Mansour HM, Khalifa SAM, Mohd Ali HB, El-Seedi HR. Antibacterial effect of the red sea soft coral Sarcophyton trocheliophorum. Nat Prod Res 2015; 30:729-34. [PMID: 26186031 DOI: 10.1080/14786419.2015.1040991] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The marine soft corals Sarcophyton trocheliophorum crude extracts possessed antimicrobial activity towards pathogenic bacterial strains, i.e. Bacillus cereus, Salmonella typhi, Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. Bioassay-guided fractionation indicated that the antimicrobial effect was due to the presence of terpenoid bioactive derivatives. Further biological assays of the n-hexane fractions were carried out using turbidity assay, inhibition zone assay and minimum inhibitory concentration for investigating the growth-inhibition effect towards the Gram-positive and Gram-negative bacteria. The fractions were screened and the structure of the isolated compound was justified by interpretation of the spectroscopic data, mainly mass spectrometry (GC-MS). The structure was assigned as (5S)-3-[(3E,5S)-5-hydroxy-3-hepten-6-yn-1-yl]-5-methyl-2(5H)-furanone and was effective at concentrations as low as 0.20 mg/mL. The above findings, in the course of our ongoing research on marine products, may implicate that the profound anti-microbial activity of the S. trocheliophorum soft corals, inhabiting the red sea reefs, is attributed to the presence of growth-inhibiting secondary metabolites mainly terpenoids.
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Affiliation(s)
- Mohamed N Gomaa
- a Biology Department , Faculty of Science and Arts-Khulais, King Abdulaziz University , Khulais , Saudi Arabia
| | - Kawther Soliman
- a Biology Department , Faculty of Science and Arts-Khulais, King Abdulaziz University , Khulais , Saudi Arabia
| | - Ahmed Ayesh
- a Biology Department , Faculty of Science and Arts-Khulais, King Abdulaziz University , Khulais , Saudi Arabia
| | - Aida Abd El-Wahed
- b Pharmacognosy Division, Department of Medicinal Chemistry , Biomedical Centre, Uppsala University , Box 574, SE-751 24 Uppsala , Sweden
| | - Zeinab Hamza
- c Marine Toxins Laboratory, Food Toxins and Contaminants Department , National Research Centre , Dokki, Cairo , Egypt
| | - Hager M Mansour
- d H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi , Karachi 75270 , Pakistan
| | - Shaden A M Khalifa
- e Department of Experimental Hematology , Karolinska University Hospital , SE-141 86 Stockholm , Sweden
| | - Hapipah Bint Mohd Ali
- f Centre for Natural Products and Drug Discovery (CENAR), Chemistry Department , Faculty of Science, University of Malaya , 50603 Kuala Lumpur , Malaysia
| | - Hesham R El-Seedi
- b Pharmacognosy Division, Department of Medicinal Chemistry , Biomedical Centre, Uppsala University , Box 574, SE-751 24 Uppsala , Sweden.,e Department of Experimental Hematology , Karolinska University Hospital , SE-141 86 Stockholm , Sweden.,f Centre for Natural Products and Drug Discovery (CENAR), Chemistry Department , Faculty of Science, University of Malaya , 50603 Kuala Lumpur , Malaysia
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16
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Cheng SY, Wang SK, Duh CY. Secocrassumol, a seco-cembranoid from the Dongsha Atoll soft coral Lobophytum crassum. Mar Drugs 2014; 12:6028-37. [PMID: 25522315 PMCID: PMC4278217 DOI: 10.3390/md12126028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 11/07/2014] [Accepted: 11/28/2014] [Indexed: 01/30/2023] Open
Abstract
Chemical investigations on the Dongsha Atoll soft coral Lobophytum crassum led to the purification of a new seco-cembranoid, secocrassumol. The structural elucidation was established by extensive NMR, HRESIMS and CD data. The absolute configuration at C-12 was determined as S using a modified Mosher's acylation. Secocrassumol differs from previously known marine seco-cembranoid in that it possesses an unprecedented skeleton functionalized at C11-C12 bond cleavage. Secocrassumol showed antiviral activity against human cytomegalovirus (HCMV) with an IC50 value of 5.0 μg/mL.
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Affiliation(s)
- Shi-Yie Cheng
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung 811, Taiwan.
| | - Shang-Kwei Wang
- Department of Microbiology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Chang-Yih Duh
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
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17
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Cheng ZB, Liao Q, Chen Y, Fan CQ, Huang ZY, Xu XJ, Yin S. Four new cembranoids from the soft coral Sarcophyton sp. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2014; 52:515-520. [PMID: 25043201 DOI: 10.1002/mrc.4108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 06/16/2014] [Accepted: 06/19/2014] [Indexed: 06/03/2023]
Affiliation(s)
- Zhong-Bin Cheng
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
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18
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Al-Footy KO, Alarif WM, Asiri F, Aly MM, Ayyad SEN. Rare pyrane-based cembranoids from the Red Sea soft coral Sarcophyton trocheliophorum as potential antimicrobial–antitumor agents. Med Chem Res 2014. [DOI: 10.1007/s00044-014-1147-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Abstract
This review covers the literature published in 2012 for marine natural products, with 1035 citations (673 for the period January to December 2012) 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 (1241 for 2012), 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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20
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Bioactive cembranoids, sarcocrassocolides P-R, from the Dongsha Atoll soft coral Sarcophyton crassocaule. Mar Drugs 2014; 12:840-50. [PMID: 24477285 PMCID: PMC3944518 DOI: 10.3390/md12020840] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 12/13/2013] [Accepted: 01/17/2014] [Indexed: 11/21/2022] Open
Abstract
New cembranoids, sarcocrassocolides P–R (1–3) and four known compounds (4–7) were isolated from the soft coral Sarcophyton crassocaule. The structures of the metabolites were determined by extensive spectroscopic analysis. Compounds 3–5 and 7 were shown to exhibit cytotoxicity toward a limited panel of cancer cell lines and all compounds 1–7 displayed potent in vitro anti-inflammatory activity in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophage cells by inhibiting the expression of inducible nitric oxide synthase (iNOS) protein. Compound 7 also showed significant activity in reducing the accumulation of cyclooxygenase-2 (COX-2) protein in the same macrophage cells.
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21
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New diterpenoids from soft coral Sarcophyton ehrenbergi. Mar Drugs 2013; 11:4318-27. [PMID: 24177676 PMCID: PMC3853730 DOI: 10.3390/md11114318] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 10/18/2013] [Accepted: 10/22/2013] [Indexed: 02/05/2023] Open
Abstract
Continuing chemical investigation on the acetone extracts of the soft coral Sarcophyton ehrenbergi collected off the coast of San-hsian-tai, Taitong County, Taiwan led to the isolation of two new diterpenoids, ehrenbergol C and acetyl ehrenberoxide B (1 and 2). The structures of these isolated metabolites were elucidated through extensive spectroscopic analyses. Moreover, in vitro tests show that compounds 1 and 2 displayed antiviral activity towards human cytomegalovirus, with EC50 of 20 and 8.0 µg/mL, respectively.
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22
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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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23
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Lin CY, Lu MC, Su JH, Chu CL, Shiuan D, Weng CF, Sung PJ, Huang KJ. Immunomodulatory effect of marine cembrane-type diterpenoids on dendritic cells. Mar Drugs 2013; 11:1336-50. [PMID: 23609581 PMCID: PMC3705408 DOI: 10.3390/md11041336] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 03/22/2013] [Accepted: 03/27/2013] [Indexed: 01/20/2023] Open
Abstract
Dendritic cells (DCs) are antigen presenting cells, which can present antigens to T-cells and play an important role in linking innate and adaptive immunity. DC maturation can be induced by many stimuli, including pro-inflammatory cytokines and bacterial products, such as lipopolysaccharides (LPS). Here, we examined the immunomodulatory effects of marine cembrane compounds, (9E,13E)-5-acetoxy-6-hydroxy-9,13-dimethyl-3-methylene-3,3a,4,5,6,7,8,11,12,14a-decahydro-2H-cyclotrideca[b]furan-2-one (1), (9E,13E)-5-acetoxy-6-acetyl-9,13-dimethyl-3-methylene-3,3a,4,5,6,7,8,11,12,14a-decahydro-2H-cyclotrideca[b]furan-2-one (2), lobocrassin B (3), (−)14-deoxycrassin (4), cembranolide B (5) and 13-acetoxysarcocrassolide (6) isolated from a soft coral, Lobophytum crassum, on mouse bone marrow-derived dendritic cells (BMDCs). The results revealed that cembrane-type diterpenoids, especially lobocrassin B, effectively inhibited LPS-induced BMDC activation by inhibiting the production of TNF-α. Pre-treatment of BMDCs with Lobocrassin B for 1 h is essential to prohibit the following activation induced by various toll-like receptor (TLR) agonists, such as LPS, zymosan, lipoteichoic acid (LTA) and Pam2CSK4. Inhibition of NF-κB nuclear translocation by lobocrassin B, which is a key transcription factor for cytokine production in TLR signaling, was evident as assayed by high-content image analysis. Lobocrassin B attenuated DC maturation and endocytosis as the expression levels of MHC class II and the co-stimulatory molecules were downregulated, which may affect the function of DCs to initiate the T-cell responses. Thus, lobocrassin B may have the potential in treatment of immune dysregulated diseases in the future.
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Affiliation(s)
- Ching-Yen Lin
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 974, Taiwan; E-Mails: (C.-Y.L.); (D.S.); (C.-F.W.)
| | - Mei-Chin Lu
- Graduate Institute of Marine Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan; E-Mails: (M.-C.L.); (J.-H.S.); (P.-J.S.)
| | - Jui-Hsin Su
- Graduate Institute of Marine Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan; E-Mails: (M.-C.L.); (J.-H.S.); (P.-J.S.)
| | - Ching-Liang Chu
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei 100, Taiwan; E-Mail:
| | - David Shiuan
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 974, Taiwan; E-Mails: (C.-Y.L.); (D.S.); (C.-F.W.)
| | - Ching-Feng Weng
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 974, Taiwan; E-Mails: (C.-Y.L.); (D.S.); (C.-F.W.)
- Graduate Institute of Marine Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan; E-Mails: (M.-C.L.); (J.-H.S.); (P.-J.S.)
| | - Ping-Jyun Sung
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 974, Taiwan; E-Mails: (C.-Y.L.); (D.S.); (C.-F.W.)
- Graduate Institute of Marine Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan; E-Mails: (M.-C.L.); (J.-H.S.); (P.-J.S.)
| | - Kao-Jean Huang
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 974, Taiwan; E-Mails: (C.-Y.L.); (D.S.); (C.-F.W.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +886-3-863-3675; Fax: +886-3-863-3630
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Zhao M, Yin J, Jiang W, Ma M, Lei X, Xiang Z, Dong J, Huang K, Yan P. Cytotoxic and antibacterial cembranoids from a South China Sea soft coral, Lobophytum sp. Mar Drugs 2013; 11:1162-72. [PMID: 23552878 PMCID: PMC3705396 DOI: 10.3390/md11041162] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 03/18/2013] [Accepted: 03/23/2013] [Indexed: 02/07/2023] Open
Abstract
Chemical examination of a South China Sea soft coral Lobophytum sp. led to the isolation of three new α-methylene-γ-lactone-containing cembranoids, (1R*,3R*,4R*,14R*,7E,11E)-3,4-epoxycembra-7,11,15(17)-trien-16,14-olide (1), (1R*,7S*,14S*,3E,11E)-7-hydroperoxycembra-3,8(19),11,15(17)-tetraen-16,14-olide (2), and (1R*,7S*,14S*,3E,11E)-18-acetoxy-7-hydroperoxycembra-3,8(19),11,15(17)-tetraen-16,14-olide (3), along with eleven known analogues 4–14. The structures of the new compounds were elucidated through extensive spectroscopic analysis, including 1D and 2D NMR data. Compounds 1–3 exhibited moderate cytotoxic activity against the selected tumor cell lines. Moreover, 2 and 3 were found to be moderate inhibitors against the bacteria S. aureus and S. pneumoniae.
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Affiliation(s)
- Min Zhao
- School of Pharmacy, Wenzhou Medical College, Wenzhou 325035, China; E-Mails: (M.Z.); (J.Y.); (Z.X.); (J.D.)
| | - Jian Yin
- School of Pharmacy, Wenzhou Medical College, Wenzhou 325035, China; E-Mails: (M.Z.); (J.Y.); (Z.X.); (J.D.)
| | - Wei Jiang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; E-Mail:
| | - Minshan Ma
- Analytical and Testing Center, Wenzhou University, Wenzhou 325035, China; E-Mails: (M.M.); (X.L.)
| | - Xinxiang Lei
- Analytical and Testing Center, Wenzhou University, Wenzhou 325035, China; E-Mails: (M.M.); (X.L.)
| | - Zheng Xiang
- School of Pharmacy, Wenzhou Medical College, Wenzhou 325035, China; E-Mails: (M.Z.); (J.Y.); (Z.X.); (J.D.)
| | - Jianyong Dong
- School of Pharmacy, Wenzhou Medical College, Wenzhou 325035, China; E-Mails: (M.Z.); (J.Y.); (Z.X.); (J.D.)
| | - Kexin Huang
- School of Pharmacy, Wenzhou Medical College, Wenzhou 325035, China; E-Mails: (M.Z.); (J.Y.); (Z.X.); (J.D.)
- Authors to whom correspondence should be addressed; E-Mail: (K.H.); (P.Y.); Tel.: +86-577-8668-9706 (K.H.); Fax: +86-577-8668-9706 (K.H.); Tel.: +86-577-8669-9229 (P.Y.); Fax: +86-577-8668-9983 (P.Y.)
| | - Pengcheng Yan
- School of Pharmacy, Wenzhou Medical College, Wenzhou 325035, China; E-Mails: (M.Z.); (J.Y.); (Z.X.); (J.D.)
- Authors to whom correspondence should be addressed; E-Mail: (K.H.); (P.Y.); Tel.: +86-577-8668-9706 (K.H.); Fax: +86-577-8668-9706 (K.H.); Tel.: +86-577-8669-9229 (P.Y.); Fax: +86-577-8668-9983 (P.Y.)
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26
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Three new cembranoids from the Taiwanese soft coral Sarcophyton ehrenbergi. Mar Drugs 2012; 10:1433-1444. [PMID: 22851917 PMCID: PMC3407922 DOI: 10.3390/md10071433] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Revised: 06/10/2012] [Accepted: 06/16/2012] [Indexed: 11/16/2022] Open
Abstract
In order to search for new bioactive substances from marine organisms, we have investigated the acetone extracts of the soft coral Sarcophyton ehrenbergi collected at San-Hsian-Tai, Taitong County, Taiwan. Chromatographic fractionation of the extracts of the octocoral S. ehrenbergi led to the isolation of three new cembranoids, (+)-12-ethoxycarbonyl-11Z-sarcophine (1), ehrenbergol A and B (2 and 3). The structures of these isolated metabolites were elucidated through extensive spectroscopic analyses. Moreover, metabolites 1-3 were evaluated in vitro for their cytotoxicity towards selected cancer cell lines and antiviral activity against human cytomegalovirus (HCMV).
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27
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Lee CH, Kao CY, Kao SY, Chang CH, Su JH, Hwang TL, Kuo YH, Wen ZH, Sung PJ. Terpenoids from the octocorals Menella sp. (Plexauridae) and Lobophytum crassum (Alcyonacea). Mar Drugs 2012; 10:427-438. [PMID: 22412810 PMCID: PMC3297006 DOI: 10.3390/md10020427] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Revised: 02/06/2012] [Accepted: 02/09/2012] [Indexed: 01/03/2023] Open
Abstract
A new germacrane-type sesquiterpenoid, menelloide E (1), and a new cembrane-type diterpenoid, lobocrassin F (2), were isolated from the octocorals Menella sp. and Lobophytum crassum, respectively. The structures of terpenoids 1 and 2 were determined by spectroscopic and chemical methods and compound 2 was found to display a significant inhibitory effect on the release of elastase by human neutrophils.
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Affiliation(s)
- Cheng-Hung Lee
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan; (C.-H.L.); (C.-H.C.)
- Department of Nutrition, HungKuang University, Taichung 433, Taiwan
- Department of Orthopedics, Taichung Veterans General Hospital, Taichung 407, Taiwan
| | - Chia-Ying Kao
- Graduate Institute of Marine Biotechnology and Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan; (C.-Y.K.); (S.-Y.K.); (J.-H.S.)
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan
| | - Shih-Yao Kao
- Graduate Institute of Marine Biotechnology and Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan; (C.-Y.K.); (S.-Y.K.); (J.-H.S.)
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan
| | - Chih-Han Chang
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan; (C.-H.L.); (C.-H.C.)
| | - Jui-Hsin Su
- Graduate Institute of Marine Biotechnology and Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan; (C.-Y.K.); (S.-Y.K.); (J.-H.S.)
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan
- Department of Marine Biotechnology and Resources and Division of Marine Biotechnology, Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan 333, Taiwan;
| | - Yueh-Hsiung Kuo
- School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources and Tsuzuki Institute for Traditional Medicine, College of Pharmacy, China Medical University, Taichung 404, Taiwan;
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources and Division of Marine Biotechnology, Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Authors to whom correspondence should be addressed; (Z.-H.W.); (P.-J.S.); Tel.: +886-7-525-2000 (ext. 5038) (Z.-H.W.); +886-8-882-5037 (P.-J.S.); Fax: +886-7-525-5020 (Z.-H.W.); +886-8-882-5087 (P.-J.S.)
| | - Ping-Jyun Sung
- Graduate Institute of Marine Biotechnology and Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan; (C.-Y.K.); (S.-Y.K.); (J.-H.S.)
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan
- Department of Marine Biotechnology and Resources and Division of Marine Biotechnology, Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Authors to whom correspondence should be addressed; (Z.-H.W.); (P.-J.S.); Tel.: +886-7-525-2000 (ext. 5038) (Z.-H.W.); +886-8-882-5037 (P.-J.S.); Fax: +886-7-525-5020 (Z.-H.W.); +886-8-882-5087 (P.-J.S.)
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