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Shama SM, Elissawy AM, Salem MA, Youssef FS, Elnaggar MS, El-Seedi HR, Khalifa SAM, Briki K, Hamdan DI, Singab ANB. Comparative metabolomics study on the secondary metabolites of the red alga, Corallina officinalis and its associated endosymbiotic fungi. RSC Adv 2024; 14:18553-18566. [PMID: 38903055 PMCID: PMC11187739 DOI: 10.1039/d4ra01055h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 05/20/2024] [Indexed: 06/22/2024] Open
Abstract
Marine endosymbionts have gained remarkable interest in the last three decades in terms of natural products (NPs) isolated thereof, emphasizing the chemical correlations with those isolated from the host marine organism. The current study aimed to conduct comparative metabolic profiling of the marine red algae Corallina officinalis, and three fungal endosymbionts isolated from its inner tissues namely, Aspergillus nidulans, A. flavipes and A. flavus. The ethyl acetate (EtOAc) extracts of the host organism as well as the isolated endosymbionts were analyzed using ultra-high performance liquid chromatography coupled to high resolution tandem mass spectrometry (UHPLC-MS/MS)in both positive and negative ion modes, applying both full scan (FS) and all ion fragmentation (AIF) modes. Extensive interpretation of the LC-MS/MS spectra had led to the identification of 76 metabolites belonging to different phytochemical classes including alkaloids, polyketides, sesquiterpenes, butyrolactones, peptides, fatty acids, isocoumarins, quinones, among others. Metabolites were tentatively identified by comparing the accurate mass and fragmentation pattern with metabolites previously reported in the literature, as well as bioinformatics analysis using GNPS. A relationship between the host C. officinalis and its endophytes (A. flavus, A. nidulans, and A. flavipes) was discovered. C. officinalis shares common metabolites with at least one of the three endosymbiotic fungi. Some metabolites have been identified in endophytes and do not exist in their host. Multivariate analysis (MVA) revealed discrimination of A. flavipes from Corallina officinalis and other associated endophytic Aspergillus fungi (A. flavus and A. nidulans).
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Affiliation(s)
- Sherif M Shama
- Department of Pharmacognosy and Natural Products, Faculty of Pharmacy, Menoufia University Shibin Elkom 32511 Egypt
| | - Ahmed M Elissawy
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University Cairo 11566 Egypt
- Center of Drug Discovery Research and Development, Ain-Shams University Cairo 11566 Egypt
| | - Mohamed A Salem
- Department of Pharmacognosy and Natural Products, Faculty of Pharmacy, Menoufia University Shibin Elkom 32511 Egypt
| | - Fadia S Youssef
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University Cairo 11566 Egypt
| | - Mohamed S Elnaggar
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University Cairo 11566 Egypt
| | - Hesham R El-Seedi
- Chemistry Department, Faculty of Science, Islamic University of Madinah P. O. Box: 170 Madinah 42351 Saudi Arabia
| | - Shaden A M Khalifa
- International Research Center for Food Nutrition and Safety, Jiangsu University Zhenjiang 212013 China
- Psychiatry and Neurology Department, Capio Saint Göran's Hospital Sankt Göransplan 1 112 19 Stockholm Sweden
| | - Khaled Briki
- Laboratory of Organic Chemistry and Natural Substance, University Ziane Achour Djelfa Algeria
| | - Dalia Ibrahim Hamdan
- Department of Pharmacognosy and Natural Products, Faculty of Pharmacy, Menoufia University Shibin Elkom 32511 Egypt
| | - Abdel Nasser B Singab
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University Cairo 11566 Egypt
- Center of Drug Discovery Research and Development, Ain-Shams University Cairo 11566 Egypt
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Xu ZL, Li BC, Huang LL, Lv LX, Luo Y, Xu WF, Yang RY. Two new cytochalasins from the endophytic fungus Xylaria sp. GDGJ-77B. Nat Prod Res 2024; 38:1503-1509. [PMID: 36469678 DOI: 10.1080/14786419.2022.2153362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/17/2022] [Accepted: 11/26/2022] [Indexed: 12/12/2022]
Abstract
Two new open-chain cytochalasins, xylarchalasins A and B (1 and 2), together with six known analogues (3-8), were isolated from the endophytic fungus Xylaria sp. GDGJ-77B from the Chinese medicinal plant Sophora tonkinensis. Their structures were elucidated on the basis of comprehensive spectroscopic analysis. Compound 2 displayed moderate antibacterial activities against Bacillus subtilis and Escherichia coli with MIC values of 25 and 12.5 μg/mL, respectively.
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Affiliation(s)
- Zhao-Long Xu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin, P. R. China
- Guangxi Research Institute of Chemical Industry Co., Ltd., Nanning, P. R. China
| | - Ben-Chao Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin, P. R. China
| | - Li-Li Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin, P. R. China
| | - Liu-Xia Lv
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin, P. R. China
| | - Yan Luo
- Life Sciences Institute, Guangxi Medical University, Nanning, P. R. China
| | - Wei-Feng Xu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin, P. R. China
| | - Rui-Yun Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin, P. R. China
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Liu Y, Li P, Qi C, Zha Z, Meng J, Liu C, Han J, Zhou Q, Luo Z, Wang J, Zhu H, Ye Y, Chen C, Zhou Y, Zhang Y. Cryptic piperazine derivatives activated by knocking out the global regulator LaeA in Aspergillus flavipes. Bioorg Med Chem 2024; 103:117685. [PMID: 38503009 DOI: 10.1016/j.bmc.2024.117685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/02/2024] [Accepted: 03/13/2024] [Indexed: 03/21/2024]
Abstract
Genome sequencing on an intertidal zone-derived Aspergillus flavipes strain revealed its great potential to produce secondary metabolites. To activate the cryptic compounds of A. flavipes, the global regulator flLaeA was knocked out, leading to substantial up-regulation of the expression of two NRPS-like biosynthetic gene clusters in the ΔflLaeA mutant. With a scaled-up fermentation of the ΔflLaeA strain, five compounds, including two previously undescribed piperazine derivatives flavipamides A and B (1 and 2), along with three known compounds (3-5), were obtained by LC-MS guided isolation. The new compounds were elucidated by spectroscopic analysis and electronic circular dichroism (ECD) calculations, and the biosynthetic pathway was proposed on the bias of bioinformatic analysis and 13C isotope labeling evidence. This is the first report to access cryptic fungi secondary metabolites by inactivating global regulator LaeA and may provide a new approach to discovering new secondary metabolites by such genetic manipulation.
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Affiliation(s)
- Yaping Liu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Pengkun Li
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Changxing Qi
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Ziou Zha
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Jie Meng
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Chang Liu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Jiapei Han
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Qun Zhou
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Zengwei Luo
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Jianping Wang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Hucheng Zhu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Ying Ye
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Chunmei Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China.
| | - Yuan Zhou
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China.
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China.
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Job N, Sarasan M, Philip R. Mangrove-associated endomycota: diversity and functional significance as a source of novel drug leads. Arch Microbiol 2023; 205:349. [PMID: 37789248 DOI: 10.1007/s00203-023-03679-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/04/2023] [Accepted: 09/07/2023] [Indexed: 10/05/2023]
Abstract
Endophytic fungi are known for their unprecedented ability to produce novel lead compounds of clinical and pharmaceutical importance. This review focuses on the unexplored fungal diversity associated with mangroves, emphasizing their biodiversity, distribution, and methodological approaches targeting isolation, and identification. Also highlights the bioactive compounds reported from the mangrove fungal endophytes. The compounds are categorized according to their reported biological activities including antimicrobial, antioxidant and cytotoxic property. In addition, protein kinase, α-glucosidase, acetylcholinesterase, tyrosinase inhibition, antiangiogenic, DNA-binding affinity, and calcium/potassium channel blocking activity are also reported. Exploration of these endophytes as a source of pharmacologically important compounds will be highly promising in the wake of emerging antibiotic resistance among pathogens. Thus, the aim of this review is to present a detailed report of mangrove derived endophytic fungi and to open an avenue for researchers to discover the possibilities of exploring these hidden mycota in developing novel drug leads.
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Affiliation(s)
- Neema Job
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
- Department of Marine Biosciences, Faculty of Ocean Science and Technology, Kerala University of Fisheries and Ocean Studies, Kochi, 682506, Kerala, India
| | - Manomi Sarasan
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
| | - Rosamma Philip
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India.
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5
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Chen T, Liu W, Gu W, Niu S, Lan S, Zhao Z, Gong F, Liu J, Yang S, Cotman AE, Song J, Fang X. Dynamic Kinetic Resolution of β-Substituted α-Diketones via Asymmetric Transfer Hydrogenation. J Am Chem Soc 2023; 145:585-599. [PMID: 36563320 DOI: 10.1021/jacs.2c11149] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Developing innovative dynamic kinetic resolution (DKR) modes and achieving the highly regio- and enantioselective semihydrogenation of unsymmetrical α-diketones are two formidable challenges in the field of contemporary asymmetric (transfer) hydrogenation. In this work, we report the highly regio- and stereoselective asymmetric semi-transfer hydrogenation of unsymmetrical α-diketones through a unique DKR mode, which features the reduction of the carbonyl group distal from the labile stereocenter, while the proximal carbonyl remains untouched. Moreover, the protocol affords a variety of enantioenriched acyclic ketones with α-hydroxy-α'-C(sp2)-functional groups, which represent a new product class that has not been furnished in known arts. The utilities of the products have been demonstrated in a series of further transformations including the rapid synthesis of drug molecules. Density functional theory calculations and plenty of control experiments have also been conducted to gain more mechanistic insights into the highly selective semihydrogenation.
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Affiliation(s)
- Ting Chen
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Wenjun Liu
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Wei Gu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Shengtong Niu
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Shouang Lan
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Zhifei Zhao
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Fan Gong
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Jinggong Liu
- Orthopedics Department, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510120, China
| | - Shuang Yang
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Andrej Emanuel Cotman
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, Ljubljana SI-1000, Slovenia
| | - Jinshuai Song
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Xinqiang Fang
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
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6
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Miao S, Liu M, Qi S, Wu Y, Sun K, Zhang Z, Zhu K, Cai G, Gong K. Cytochalasins from coastal saline soil-derived fungus Aspergillus flavipes RD-13 and their cytotoxicities. J Antibiot (Tokyo) 2022; 75:410-414. [PMID: 35459857 DOI: 10.1038/s41429-022-00527-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/06/2022] [Accepted: 04/06/2022] [Indexed: 12/26/2022]
Abstract
Chemical investigation of coastal saline soil-derived fungus Aspergillus flavipes RD-13 led to the isolation of two new seco-cytochalasins (1) and (2) along with nine known analogs. Their structures were elucidated by comprehensive spectral analysis, and the absolute configurations of these two new ones were determined through Rh2(OCOCF3)4-induced CD experiment and chemical interconversions. Moreover, the absolute configuration of a known compound named cytochalasins Z18 (3) was also determined for the first time. Structurally, compounds 1, 2 and 3 were the open ring derivatives of compounds 5, 8, and 4, respectively. All compounds were evaluated for their cytotoxic activities on A549, H1299 and H520 cells and 4 exhibited the strongest inhibitory activities towards the above cell lines with IC50 values of 0.15, 0.23 and 0.43 μg/mL, respectively. Preliminary structure-activity relationship analysis suggested the importance of macrocyclic ring in cytochalasins to confer cytotoxicity.
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Affiliation(s)
- Shuang Miao
- Medical Research Center, Binzhou Medical University Hospital, Yellow River Second Road 661, Binzhou, 256603, China
| | - Mengshan Liu
- Medical Research Center, Binzhou Medical University Hospital, Yellow River Second Road 661, Binzhou, 256603, China
| | - Shizhou Qi
- Medical Research Center, Binzhou Medical University Hospital, Yellow River Second Road 661, Binzhou, 256603, China
| | - Yan Wu
- Medical Research Center, Binzhou Medical University Hospital, Yellow River Second Road 661, Binzhou, 256603, China
| | - Kunlai Sun
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Zhen Zhang
- Medical Research Center, Binzhou Medical University Hospital, Yellow River Second Road 661, Binzhou, 256603, China
| | - Kongkai Zhu
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Guowei Cai
- Medical Research Center, Binzhou Medical University Hospital, Yellow River Second Road 661, Binzhou, 256603, China. .,Clinical Drug Trials Institution, Binzhou Medical University Hospital, Yellow River Second Road 661, Binzhou, 256603, China.
| | - Kaikai Gong
- Medical Research Center, Binzhou Medical University Hospital, Yellow River Second Road 661, Binzhou, 256603, China.
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7
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Shu Y, Wang JP, Li BX, Gan JL, Ding H, Liu R, Cai L, Ding ZT. Bioactive cytochalasans from the fungus Arthrinium arundinis DJ-13. PHYTOCHEMISTRY 2022; 194:113009. [PMID: 34826796 DOI: 10.1016/j.phytochem.2021.113009] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/30/2021] [Accepted: 11/05/2021] [Indexed: 06/13/2023]
Abstract
The investigation of the metabolites from Arthrinium arundinis DJ-13 grown in solid medium revealed six undescribed cytochalasans, arundisins A-F and twelve known compounds. Their structures were initially investigated in detail by spectroscopic analyses and were further confirmed by X-crystallography and ECD experiments. In the in vitro bioassays, arundisins A and B showed cytotoxic activity against the MCF-7 breast cancer cell line with IC50 values of 18.82 ± 0.36 and 15.20 ± 0.42 μM, respectively. Arundisin F exhibited potent antibacterial activity against Escherichia coli with MIC of 8.00 μg/mL (kanamycin, 2.00 μg/mL), and arundisin D displayed gently antibacterial activity against Candida albicans with MIC of 32.00 μg/mL (Nystatin, 1.00 μg/mL).
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Affiliation(s)
- Yan Shu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Jia-Peng Wang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Bing-Xian Li
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Jun-Li Gan
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Hao Ding
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Rui Liu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Le Cai
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
| | - Zhong-Tao Ding
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
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Huang G, Lin W, Li H, Tang Q, Hu Z, Huang H, Deng X, Xu Q. Pentacyclic Cytochalasins and Their Derivatives from the Endophytic Fungus Phomopsis sp. xz-18. Molecules 2021; 26:molecules26216505. [PMID: 34770914 PMCID: PMC8587572 DOI: 10.3390/molecules26216505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 11/16/2022] Open
Abstract
Eight new cytochalasins 1–8 and ten known analogs 9–18 were isolated from the endophytic fungus Phomopsis sp. xz-18. The planar structures of the cytochalasins were determined by HR-ESI-MS and NMR analysis. Compounds 1, 2, 9 and 10 were 5/6/6/7/5-fused pentacyclic cytochalasins; compounds 3 and 4 had conjugated diene structures in the macrocycle; and compound 6 had a β,γ-unsaturated ketone. The absolute configuration of 6 was confirmed for the first time by the octant rule. The acid-free purification process proved that the pentacyclic system was a natural biosynthetic product and not an acid-mediated intramolecular cyclized artifact. The new compounds did not exhibit activities against human cancer cell lines in cytotoxicity bioassays or antipathogenic fungal activity, but compounds 1, 3 and 4 showed moderate antibacterial activity in disk diffusion assays.
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Affiliation(s)
- Guichon Huang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China; (G.H.); (W.L.); (H.L.); (Q.T.); (Z.H.); (H.H.)
| | - Weiwen Lin
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China; (G.H.); (W.L.); (H.L.); (Q.T.); (Z.H.); (H.H.)
| | - Hanpeng Li
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China; (G.H.); (W.L.); (H.L.); (Q.T.); (Z.H.); (H.H.)
| | - Qian Tang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China; (G.H.); (W.L.); (H.L.); (Q.T.); (Z.H.); (H.H.)
| | - Zhiyu Hu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China; (G.H.); (W.L.); (H.L.); (Q.T.); (Z.H.); (H.H.)
| | - Huiying Huang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China; (G.H.); (W.L.); (H.L.); (Q.T.); (Z.H.); (H.H.)
| | - Xianming Deng
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China; (G.H.); (W.L.); (H.L.); (Q.T.); (Z.H.); (H.H.)
- State-Province Joint Engineering Laboratory of Targeted Drugs from Natural Products, Xiamen University, Xiamen 361102, China
- Correspondence: (X.D.); (Q.X.); Tel.: +86-592-2184180 (X.D.); +86-592-2180328 (Q.X.)
| | - Qingyan Xu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China; (G.H.); (W.L.); (H.L.); (Q.T.); (Z.H.); (H.H.)
- State-Province Joint Engineering Laboratory of Targeted Drugs from Natural Products, Xiamen University, Xiamen 361102, China
- Correspondence: (X.D.); (Q.X.); Tel.: +86-592-2184180 (X.D.); +86-592-2180328 (Q.X.)
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9
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Chen S, Cai R, Liu Z, Cui H, She Z. Secondary metabolites from mangrove-associated fungi: source, chemistry and bioactivities. Nat Prod Rep 2021; 39:560-595. [PMID: 34623363 DOI: 10.1039/d1np00041a] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Covering 1989 to 2020The mangrove forests are a complex ecosystem occurring at tropical and subtropical intertidal estuarine zones and nourish a diverse group of microorganisms including fungi, actinomycetes, bacteria, cyanobacteria, algae, and protozoa. Among the mangrove microbial community, mangrove associated fungi, as the second-largest ecological group of the marine fungi, not only play an essential role in creating and maintaining this biosphere but also represent a rich source of structurally unique and diverse bioactive secondary metabolites, attracting significant attention of organic chemists and pharmacologists. This review summarizes the discovery relating to the source and characteristics of metabolic products isolated from mangrove-associated fungi over the past thirty years (1989-2020). Its emphasis included 1387 new metabolites from 451 papers, focusing on bioactivity and the unique chemical diversity of these natural products.
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Affiliation(s)
- Senhua Chen
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China. .,School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Runlin Cai
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China. .,College of Science, Shantou University, Shantou 515063, China
| | - Zhaoming Liu
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China. .,State Key Laboratory of Applied Microbiology Southern China, Guangdong Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Hui Cui
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China. .,School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Zhigang She
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China.
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10
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Shen Y, Liang WJ, Shi YN, Kennelly EJ, Zhao DK. Structural diversity, bioactivities, and biosynthesis of natural diterpenoid alkaloids. Nat Prod Rep 2021; 37:763-796. [PMID: 32129397 DOI: 10.1039/d0np00002g] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Covering: 2009 to 2018. Diterpenoid alkaloids, originating from the amination of natural tetracyclic diterpenes, are a diverse class of compounds having complex structural features with many stereocenters. The important pharmacological activities and structural complexity of the diterpenoid alkaloids have long interested scientists due to their medicinal uses, infamous toxicity, and unique biosynthesis. Since 2009, 373 diterpenoid alkaloids, assigned to 46 skeletons, have been isolated and identified from plants mostly in the Ranunculaceae family. The names, classes, molecular weight, molecular formula, NMR data, and plant sources of these diterpene alkaloids are collated here. This review will be a detailed update of the naturally occurring diterpene alkaloids reported from the plant kingdom from 2009-2018, providing an in-depth discussion of their diversity, biological activities, pharmacokinetics, toxicity, application, evolution, and biosynthesis.
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Affiliation(s)
- Yong Shen
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, 650201, P. R. China and Biocontrol Engineering Research Center of Plant Disease and Pest, Yunnan University, Kunming, 650504, P. R. China. and Biocontrol Engineering Research Center of Crop Disease and Pest, Yunnan University, Kunming, 650504, P. R. China and School of Life Science, Yunnan University, Kunming, 650504, P. R. China and Kunming Kangren Biotechnology Co., Ltd., Kunming, 650203, P. R. China and Research & Development Center for Functional Products, Yunnan Agricultural University, Kunming, 650201, P. R. China
| | - Wen-Juan Liang
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, 650201, P. R. China
| | - Ya-Na Shi
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, 650201, P. R. China and Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, 650000, P. R. China
| | - Edward J Kennelly
- Department of Biological Sciences, Lehman College, City University of New York, Bronx, New York, 10468, USA. and Ph.D. Programs in Biochemistry, Biology, and Chemistry, The Graduate Center, City University of New York, New York, 10016, USA
| | - Da-Ke Zhao
- Biocontrol Engineering Research Center of Plant Disease and Pest, Yunnan University, Kunming, 650504, P. R. China. and Biocontrol Engineering Research Center of Crop Disease and Pest, Yunnan University, Kunming, 650504, P. R. China and School of Life Science, Yunnan University, Kunming, 650504, P. R. China and Kunming Kangren Biotechnology Co., Ltd., Kunming, 650203, P. R. China
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11
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Wang C, Zaman KHAU, Sarotti AM, Wu X, Zheng SL, Cao S. NF-κB inhibitory, antimicrobial and antiproliferative potentials of compounds from Hawaiian fungus Aspergillus polyporicola FS910. 3 Biotech 2021; 11:391. [PMID: 34458061 DOI: 10.1007/s13205-021-02877-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 06/02/2021] [Indexed: 11/27/2022] Open
Abstract
Bioassay-guided experimental design and chromatographic analysis led to the isolation and identification of ten compounds (1-10) including two unusual sulfur-containing curvularin macrolides (1 and 2) from a Hawaiian fungal strain Aspergillus polyporicola FS910. Compounds 1 and 2 are rare curvularin macrolides each with a five-membered cyclic sulfur-containing moiety. The structures of the compounds were identified by HRESIMS, NMR spectroscopy, X-ray crystallography, ECD and DFT energy calculation, as well as comparing with previous literatures. Compounds 4, 6 and 8 were active against TNF-α-induced NF-κB inhibitory activity with IC50 values of 26.45, 5.41 and 15.8 µM, respectively. Compounds 3 and 5-8 exhibited anti-proliferative activity against HT1080, T46D, and A2780S cell lines, with IC50 values ranging from 2.48 to 29.17 μM. Additionally, Compound 3 showed promising antimicrobial activity against methicillin-resistant Staphylococcus aureus (MRSA), Bacillus subtilis, Escherichia coli and Candida albicans. Moreover, when tested in combination with antibiotic adjuvant disulfiram [4 µg/mL], compounds 4, 5 and 10 also displayed significant antibacterial activity against S. aureus. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02877-7.
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Affiliation(s)
- Cong Wang
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720 USA
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning, 530006 People's Republic of China
| | - K H Ahammad Uz Zaman
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720 USA
| | - Ariel M Sarotti
- Instituto de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, 2000 Rosario, Argentina
| | - Xiaohua Wu
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720 USA
| | - Shao-Liang Zheng
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138 USA
| | - Shugeng Cao
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720 USA
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12
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Machado FP, Kumla D, Pereira JA, Sousa E, Dethoup T, Freitas-Silva J, Costa PM, Mistry S, Silva AMS, Kijjoa A. Prenylated phenylbutyrolactones from cultures of a marine sponge-associated fungus Aspergillus flavipes KUFA1152. PHYTOCHEMISTRY 2021; 185:112709. [PMID: 33636575 DOI: 10.1016/j.phytochem.2021.112709] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/14/2021] [Accepted: 02/15/2021] [Indexed: 05/22/2023]
Abstract
Four undescribed prenylated phenylbutyrolactones, aspulvinones R, S, T and U, were isolated together with the previously reported aspulvinones A, B', H and 4-hydroxy-3,5-bis(3-methylbut-2-en-1-yl)benzaldehyde, from cultures of the marine sponge-derived fungus Aspergillus flavipes KUFA1152. The structures of the undescribed compounds were established on the basis of extensive analysis of 1D and 2D NMR and HRMS spectra. In the case of aspulvinone T, the absolute configuration of its stereogenic carbon was established by comparison of the experimental and calculated electronic circular dichroism (ECD) spectra. The structure of the previously reported compounds were elucidated by 1D and 2D NMR analysis as well as comparison of their 1H or/and 13C NMR data with those reported in the literature. Aspulvinones B', H, R, S, T and a mixture of aspulvinones A and U exhibited antibacterial activity against reference strains and multidrug-resistant isolates from the environment as well as capacity to inhibit biofilm formation in the reference strains. However, none of the tested compounds showed potential synergy with clinically relevant antibiotics on multidrug-resistant isolates.
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Affiliation(s)
- Fátima P Machado
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - Decha Kumla
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - José A Pereira
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - Emilia Sousa
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; Laboratório de Química Orgânica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.
| | - Tida Dethoup
- Department of Plant Pathology, Faculty of Agriculture, Kasetsart University, Bangkok, 10240, Thailand.
| | - Joana Freitas-Silva
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - Paulo M Costa
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - Sharad Mistry
- Department of Chemistry, University of Leicester, University Road, Leicester, LE 7 RH, UK.
| | - Artur M S Silva
- Departamento de Química & QOPNA, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
| | - Anake Kijjoa
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
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13
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Progress in the Chemistry of Cytochalasans. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2021; 114:1-134. [PMID: 33792860 DOI: 10.1007/978-3-030-59444-2_1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cytochalasans are a group of fungal-derived natural products characterized by a perhydro-isoindolone core fused with a macrocyclic ring, and they exhibit a high structural diversity and a broad spectrum of bioactivities. Cytochalasans have attracted significant attention from the chemical and pharmacological communities and have been reviewed previously from various perspectives in recent years. However, continued interest in the cytochalasans and the number of laboratory investigations on these compounds are both growing rapidly. This contribution provides a general overview of the isolation, structural determination, biological activities, biosynthesis, and total synthesis of cytochalasans. In total, 477 cytochalasans are covered, including "merocytochalasans" that arise by the dimerization or polymerization of one or more cytochalasan molecules with one or more other natural product units. This contribution provides a comprehensive treatment of the cytochalasans, and it is hoped that it may stimulate further work on these interesting natural products.
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14
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Cytochalasins from an endophytic fungus Phoma multirostrata XJ-2-1 with cell cycle arrest and TRAIL-resistance-overcoming activities. Bioorg Chem 2020; 104:104317. [PMID: 33142426 DOI: 10.1016/j.bioorg.2020.104317] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 02/07/2023]
Abstract
Nine new (1-9) and four known (10-13) [13]cytochalasins, along with three known 24-oxa[14]cytochalasins (14-16), were isolated from the culture of Phoma multirostrata XJ-2-1, an endophytic fungus obtained from the fibrous root of Parasenecio albus. Their structures were elucidated by interpretation of the nuclear magnetic resonance (NMR) and high-resolution electrospray ionization mass spectroscopy (HRESIMS). The absolute configurations were assigned by single-crystal X-ray crystallography, modified Mosher's method, and by analysis of their experimental electronic circular dichroism (ECD) spectra. Compound 6 could induce cell cycle arrest at G2-phase in CT26 and A549 cells, and displayed moderate cytotoxicity against CT26 and A549 cell lines with IC50 values of 6.03 and 5.04 μM, respectively. Co-treatment of 7-9, 13 and 16 with tumor necrosis factor related apoptosis inducing ligand (TRAIL) could significantly decrease the cell viability of A549, which revealed that cytochalasins could possibly be a new group of TRAIL sensitizers in lung cancer therapy.
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15
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Wang C, Wu X, Bai H, Zaman KAU, Hou S, Saito J, Wongwiwatthananukit S, Kim KS, Cao S. Antibacterial and NF-κB Inhibitory Lumazine Peptides, Aspochalasin, γ-Butyrolactone Derivatives, and Cyclic Peptides from a Hawaiian Aspergillus flavipes. JOURNAL OF NATURAL PRODUCTS 2020; 83:2233-2240. [PMID: 32568536 DOI: 10.1021/acs.jnatprod.0c00344] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Five new lumazine peptides (1-5), a new aspochalasin derivative (6), and a new γ-butyrolactone derivative (7), together with seven known compounds (8-14), were isolated from a Hawaiian fungal strain, Aspergillus flavipes FS888. Compound 1 is an uncommon natural product containing an isocyano group. The structures of the new compounds 1-7 were elucidated by NMR spectroscopy, HRESIMS, chemical derivatization, and ECD analysis. Compounds 12-14 showed significant antibacterial activity against S. aureus when in combination with disulfiram. Additionally, compounds 9 and 13 showed NF-κB inhibitory activity with IC50 values of 3.1 ± 1.0 and 10.3 ± 2.0 μM, respectively.
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Affiliation(s)
- Cong Wang
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, Hawaii 96720, United States
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, People's Republic of China
| | - Xiaohua Wu
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, Hawaii 96720, United States
| | - Helong Bai
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, Hawaii 96720, United States
- College of Chemistry, Changchun Normal University, 677 ChangJibei Road, Changchun, Jilin 130032, People's Republic of China
| | - Kh Ahammad Uz Zaman
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, Hawaii 96720, United States
| | - Shaobin Hou
- Advanced Studies in Genomics, Proteomics and Bioinformatics (ASGPB), University of Hawai'i at Manoa, Honolulu, Hawaii 96822, United States
| | - Jennifer Saito
- Advanced Studies in Genomics, Proteomics and Bioinformatics (ASGPB), University of Hawai'i at Manoa, Honolulu, Hawaii 96822, United States
| | - Supakit Wongwiwatthananukit
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, Hawaii 96720, United States
| | - Kyung Sik Kim
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Shugeng Cao
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, Hawaii 96720, United States
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16
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Xu J, Lin B, Jiang X, Jia Z, Wu J, Dai WM. Intramolecular Diels–Alder Cycloaddition Approach toward the cis-Fused Δ5,6-Hexahydroisoindol-1-one Core of Cytochalasins. Org Lett 2019; 21:830-834. [DOI: 10.1021/acs.orglett.8b04129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jingjing Xu
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
- Department of Chemistry, Hangzhou Medical College, Hangzhou 310053, P. R. China
| | - Benguo Lin
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Xiuqing Jiang
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Zejun Jia
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Jinlong Wu
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Wei-Min Dai
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
- Laboratory of Advanced Catalysis and Synthesis, Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, P. R. China
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17
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Xin XQ, Chen Y, Zhang H, Li Y, Yang MH, Kong LY. Cytotoxic seco-cytochalasins from an endophytic Aspergillus sp. harbored in Pinellia ternata tubers. Fitoterapia 2019; 132:53-59. [DOI: 10.1016/j.fitote.2018.11.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/17/2018] [Accepted: 11/24/2018] [Indexed: 01/26/2023]
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18
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Carvalho CRD, Ferreira-D'Silva A, Wedge DE, Cantrell CL, Rosa LH. Antifungal activities of cytochalasins produced by Diaporthe miriciae, an endophytic fungus associated with tropical medicinal plants. Can J Microbiol 2018; 64:835-843. [PMID: 29874477 DOI: 10.1139/cjm-2018-0131] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In the present study, we evaluated the antifungal potential of cytochalasins produced by Diaporthe taxa against phytopathogenic fungi. Using molecular methods, seven endophytic fungal strains from the medicinal plants Copaifera pubiflora and Melocactus ernestii were identified as Diaporthe miriciae, while two isolates were identified to the genus level (Diaporthe sp.). All crude extracts of Diaporthe species produced via solid-state fermentation were evaluated by 1H NMR analyses. Crude extracts of the isolates D. miriciae UFMGCB 6350, 7719, 7646, 7653, 7701, 7772, and 7770 and Diaporthe sp. UFMGCB 7696 and 7720 were demonstrated to produce highly functionalized compounds. The extracts of D. miriciae UFMGCB 7719 and 6350 were selected as representative Diaporthe samples and subjected to bioassay-directed fractionation to isolate cytochalasins H and J. Cytochalasins H and J were evaluated for activities against the fungal plant pathogens Colletotrichum fragariae, Colletotrichum gloeosporioides, Colletotrichum acutatum, Botrytis cinerea, Fusarium oxysporum, Phomopsis obscurans, and Phomopsis viticola using microdilution broth assays. Cytochalasins H and J exhibited the most potent activities against the Phomopsis species tested. Our results showed that Diaporthe species were potential producers of different cytochalasins, which exhibit potential for controlling fungal diseases in planta and (or) maintaining antagonism.
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Affiliation(s)
- C R de Carvalho
- a Department of Microbiology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, MG, P.O. Box 486, CEP 31270-901, Brazil
| | - A Ferreira-D'Silva
- a Department of Microbiology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, MG, P.O. Box 486, CEP 31270-901, Brazil
| | - D E Wedge
- b Natural Products Utilization Research Unit, United States Department of Agriculture, Agricultural Research Service, University, MS 38677, USA
| | - C L Cantrell
- b Natural Products Utilization Research Unit, United States Department of Agriculture, Agricultural Research Service, University, MS 38677, USA
| | - L H Rosa
- a Department of Microbiology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, MG, P.O. Box 486, CEP 31270-901, Brazil
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Yang MH, Gu ML, Han C, Guo XJ, Yin GP, Yu P, Kong LY. Aureochaeglobosins A–C, Three [4 + 2] Adducts of Chaetoglobosin and Aureonitol Derivatives from Chaetomium globosum. Org Lett 2018; 20:3345-3348. [DOI: 10.1021/acs.orglett.8b01243] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ming-Hua Yang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People’s Republic of China
| | - Mei-Ling Gu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People’s Republic of China
| | - Chao Han
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People’s Republic of China
| | - Xiao-Jiang Guo
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People’s Republic of China
| | - Guo-Ping Yin
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People’s Republic of China
| | - Pei Yu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People’s Republic of China
| | - Ling-Yi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People’s Republic of China
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20
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Pharmacological Applications of Metabolites of Mangrove Endophytes: A Review. Microb Biotechnol 2018. [DOI: 10.1007/978-981-10-7140-9_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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21
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Pang X, Zhao JY, Fang XM, Zhang T, Zhang DW, Liu HY, Su J, Cen S, Yu LY. Metabolites from the Plant Endophytic Fungus Aspergillus sp. CPCC 400735 and Their Anti-HIV Activities. JOURNAL OF NATURAL PRODUCTS 2017; 80:2595-2601. [PMID: 29016131 DOI: 10.1021/acs.jnatprod.6b00878] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Thirty-three metabolites including five phenalenone derivatives (1-5), seven cytochalasins (6-12), thirteen butenolides (13-25), and eight phenyl derivatives (26-33) were isolated from Aspergillus sp. CPCC 400735 cultured on rice. The structures of all compounds were elucidated by NMR, MS, and CD experiments, of which 1-5 (asperphenalenones A-E), 6 (aspochalasin R), and 13 (aspulvinone R) were identified as new compounds. Specifically, asperphenalenones A-E (1-5) represent an unusual structure composed of a linear diterpene derivative linked to a phenalenone derivative via a C-C bond. Compounds 1, 4, 10, and 26 exhibited anti-HIV activity with IC50 values of 4.5, 2.4, 9.2, and 6.6 μM, respectively (lamivudine 0.1 μM; efavirenz, 0.4 × 10-3 μM).
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Affiliation(s)
- Xu Pang
- Institute of Medicinal Biotechnology, Academy of Medical Science & Peking Union Medical College , Beijing 100050, China
| | - Jian-Yuan Zhao
- Institute of Medicinal Biotechnology, Academy of Medical Science & Peking Union Medical College , Beijing 100050, China
| | - Xiao-Mei Fang
- Institute of Medicinal Biotechnology, Academy of Medical Science & Peking Union Medical College , Beijing 100050, China
| | - Tao Zhang
- Institute of Medicinal Biotechnology, Academy of Medical Science & Peking Union Medical College , Beijing 100050, China
| | - De-Wu Zhang
- Institute of Medicinal Biotechnology, Academy of Medical Science & Peking Union Medical College , Beijing 100050, China
| | - Hong-Yu Liu
- Institute of Medicinal Biotechnology, Academy of Medical Science & Peking Union Medical College , Beijing 100050, China
| | - Jing Su
- Institute of Medicinal Biotechnology, Academy of Medical Science & Peking Union Medical College , Beijing 100050, China
| | - Shan Cen
- Institute of Medicinal Biotechnology, Academy of Medical Science & Peking Union Medical College , Beijing 100050, China
| | - Li-Yan Yu
- Institute of Medicinal Biotechnology, Academy of Medical Science & Peking Union Medical College , Beijing 100050, China
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22
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Tawfike AF, Tate R, Abbott G, Young L, Viegelmann C, Schumacher M, Diederich M, Edrada-Ebel R. Metabolomic Tools to Assess the Chemistry and Bioactivity of EndophyticAspergillusStrain. Chem Biodivers 2017; 14. [DOI: 10.1002/cbdv.201700040] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 06/29/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Ahmed F. Tawfike
- Strathclyde Institute of Pharmacy and Biomedical Sciences; University of Strathclyde; The John Arbuthnott Building, 161 Cathedral Street Glasgow G4 0NR UK
- Department of Pharmacognosy; Faculty of Pharmacy; Helwan University; Cairo Egypt
| | - Rothwelle Tate
- Strathclyde Institute of Pharmacy and Biomedical Sciences; University of Strathclyde; The John Arbuthnott Building, 161 Cathedral Street Glasgow G4 0NR UK
| | - Gráinne Abbott
- Strathclyde Institute of Pharmacy and Biomedical Sciences; University of Strathclyde; The John Arbuthnott Building, 161 Cathedral Street Glasgow G4 0NR UK
| | - Louise Young
- Strathclyde Institute of Pharmacy and Biomedical Sciences; University of Strathclyde; The John Arbuthnott Building, 161 Cathedral Street Glasgow G4 0NR UK
| | - Christina Viegelmann
- Strathclyde Institute of Pharmacy and Biomedical Sciences; University of Strathclyde; The John Arbuthnott Building, 161 Cathedral Street Glasgow G4 0NR UK
| | - Marc Schumacher
- Laboratoire de Biologie Moleculaire et Cellulaire du Cancer; Fondation de Recherche Cancer et Sang; Hopital Kirchberg; 9 rue Edward Steichen 2540 Luxembourg City Luxembourg
| | - Marc Diederich
- Laboratoire de Biologie Moleculaire et Cellulaire du Cancer; Fondation de Recherche Cancer et Sang; Hopital Kirchberg; 9 rue Edward Steichen 2540 Luxembourg City Luxembourg
- Department of Pharmacy; College of Pharmacy; Seoul National University; 1 Gwanak-ro Gwanak-gu, Seoul 08826 Korea
| | - RuAngelie Edrada-Ebel
- Strathclyde Institute of Pharmacy and Biomedical Sciences; University of Strathclyde; The John Arbuthnott Building, 161 Cathedral Street Glasgow G4 0NR UK
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Ferreira MC, Cantrell CL, Wedge DE, Gonçalves VN, Jacob MR, Khan S, Rosa CA, Rosa LH. Antimycobacterial and antimalarial activities of endophytic fungi associated with the ancient and narrowly endemic neotropical plant Vellozia gigantea from Brazil. Mem Inst Oswaldo Cruz 2017; 112:692-697. [PMID: 28953997 PMCID: PMC5607518 DOI: 10.1590/0074-02760170144] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 05/11/2017] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Endophytic fungi, present mainly in the Ascomycota and Basidiomycota phyla, are associated with different plants and represent important producers of bioactive natural products. Brazil has a rich biodiversity of plant species, including those reported as being endemic. Among the endemic Brazilian plant species, Vellozia gigantea (Velloziaceae) is threatened by extinction and is a promising target to recover endophytic fungi. OBJECTIVE The present study focused on bioprospecting of bioactive compounds of the endophytic fungi associated with V. gigantea, an endemic, ancient, and endangered plant species that occurs only in the rupestrian grasslands of Brazil. METHODS The capability of 285 fungal isolates to produce antimicrobial and antimalarial activities was examined. Fungi were grown at solid-state fermentation to recover their crude extracts in dichloromethane. Bioactive extracts were analysed by chromatographic fractionation and NMR and displayed compounds with antimicrobial, antimycobacterial, and antimalarial activities. FINDINGS Five fungi produced antimicrobial and antimalarial compounds. Extracts of Diaporthe miriciae showed antifungal, antibacterial, and antimalarial activities; Trichoderma effusum displayed selective antibacterial activity against methicillin-resistant Staphylococcus aureus and Mycobacterium intracellulare; and three Penicillium species showed antibacterial activity. D. miriciae extract contained highly functionalised secondary metabolites, yielding the compound epoxycytochalasin H with high antimalarial activity against the chloroquine-resistant strain of Plasmodium falciparum, with an IC50 approximately 3.5-fold lower than that with chloroquine. MAIN CONCLUSION Our results indicate that V. gigantea may represent a microhabitat repository hotspot of potential fungi producers of bioactive compounds and suggest that endophytic fungal communities might be an important biological component contributing to the fitness of the plants living in the rupestrian grassland.
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Affiliation(s)
- Mariana C Ferreira
- Universidade Federal de Minas Gerais, Departamento de Microbiologia, Belo Horizonte, MG, Brasil
| | - Charles L Cantrell
- United States Department of Agriculture, Natural Products Utilization Research Unit, Mississippi, USA
| | - David E Wedge
- United States Department of Agriculture, Natural Products Utilization Research Unit, Mississippi, USA
| | - Vívian N Gonçalves
- Universidade Federal de Minas Gerais, Departamento de Microbiologia, Belo Horizonte, MG, Brasil
| | - Melissa R Jacob
- University of Mississippi, National Center for Natural Products Research, Mississippi, USA
| | - Shabana Khan
- University of Mississippi, National Center for Natural Products Research, Mississippi, USA
| | - Carlos A Rosa
- Universidade Federal de Minas Gerais, Departamento de Microbiologia, Belo Horizonte, MG, Brasil
| | - Luiz H Rosa
- Universidade Federal de Minas Gerais, Departamento de Microbiologia, Belo Horizonte, MG, Brasil
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Anti-cancer and anti-inflammatory new vakognavine-type alkaloid from the roots of Aconitum carmichaelii. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.11.065] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Mendes G, Gonçalves VN, Souza-Fagundes EM, Kohlhoff M, Rosa CA, Zani CL, Cota BB, Rosa LH, Johann S. Antifungal activity of extracts from Atacama Desert fungi against Paracoccidioides brasiliensis and identification of Aspergillus felis as a promising source of natural bioactive compounds. Mem Inst Oswaldo Cruz 2016; 111:209-17. [PMID: 27008375 PMCID: PMC4804504 DOI: 10.1590/0074-02760150451] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 02/15/2016] [Indexed: 12/15/2022] Open
Abstract
Fungi of the genus Paracoccidioides are responsible for
paracoccidioidomycosis. The occurrence of drug toxicity and relapse in this disease
justify the development of new antifungal agents. Compounds extracted from fungal
extract have showing antifungal activity. Extracts of 78 fungi isolated from rocks of
the Atacama Desert were tested in a microdilution assay against
Paracoccidioides brasiliensis Pb18. Approximately 18% (5) of the
extracts showed minimum inhibitory concentration (MIC) values≤ 125.0
µg/mL. Among these, extract from the fungus UFMGCB 8030 demonstrated the best
results, with an MIC of 15.6 µg/mL. This isolate was identified as
Aspergillus felis (by macro and micromorphologies, and internal
transcribed spacer, β-tubulin, and ribosomal polymerase II gene analyses) and was
grown in five different culture media and extracted with various solvents to optimise
its antifungal activity. Potato dextrose agar culture and dichloromethane extraction
resulted in an MIC of 1.9 µg/mL against P. brasiliensis and did not
show cytotoxicity at the concentrations tested in normal mammalian cell (Vero). This
extract was subjected to bioassay-guided fractionation using analytical
C18RP-high-performance liquid chromatography (HPLC) and an antifungal assay using
P. brasiliensis. Analysis of the active fractions by HPLC-high
resolution mass spectrometry allowed us to identify the antifungal agents present in
the A. felis extracts cytochalasins. These results reveal the
potential of A. felis as a producer of bioactive compounds with
antifungal activity.
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Affiliation(s)
- Graziele Mendes
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - Vívian N Gonçalves
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - Elaine M Souza-Fagundes
- Departamento de Fisiologia e Biofísica, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - Markus Kohlhoff
- Laboratório de Química de Produtos Naturais, Centro de Pesquisa René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brasil
| | - Carlos A Rosa
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - Carlos L Zani
- Laboratório de Química de Produtos Naturais, Centro de Pesquisa René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brasil
| | - Betania B Cota
- Laboratório de Química de Produtos Naturais, Centro de Pesquisa René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brasil
| | - Luiz H Rosa
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - Susana Johann
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
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Kim EL, Wang H, Park JH, Hong J, Choi JS, Im DS, Chung HY, Jung JH. Cytochalasin derivatives from a jellyfish-derived fungus Phoma sp. Bioorg Med Chem Lett 2015; 25:2096-9. [PMID: 25881821 DOI: 10.1016/j.bmcl.2015.03.080] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 03/10/2015] [Accepted: 03/27/2015] [Indexed: 11/19/2022]
Abstract
Four new cytochalasin derivatives (1-4), together with proxiphomin (5), were isolated from a jellyfish-derived fungus Phoma sp. The planar structures and relative stereochemistry were established by analysis of 1D and 2D NMR data. The absolute configuration was defined by the modified Mosher's method. The compounds showed moderate cytotoxicity against a small panel of human solid tumor cell lines (A549, KB, and HCT116).
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Affiliation(s)
- Eun La Kim
- College of Pharmacy, Pusan National University, Busan 609-735, Republic of Korea
| | - Haibo Wang
- College of Pharmacy, Pusan National University, Busan 609-735, Republic of Korea
| | - Ju Hee Park
- College of Pharmacy, Pusan National University, Busan 609-735, Republic of Korea
| | - Jongki Hong
- College of Pharmacy, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Jae Sue Choi
- Department of Food Science and Nutrition, Pukyong National University, Busan 608-737, Republic of Korea
| | - Dong Soon Im
- College of Pharmacy, Pusan National University, Busan 609-735, Republic of Korea
| | - Hae Young Chung
- College of Pharmacy, Pusan National University, Busan 609-735, Republic of Korea
| | - Jee H Jung
- College of Pharmacy, Pusan National University, Busan 609-735, Republic of Korea.
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New meroterpenoids from the endophytic fungus Aspergillus flavipes AIL8 derived from the mangrove plant Acanthus ilicifolius. Mar Drugs 2015; 13:237-48. [PMID: 25574738 PMCID: PMC4306934 DOI: 10.3390/md13010237] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 12/22/2014] [Indexed: 01/28/2023] Open
Abstract
Four new meroterpenoids (2–5), along with three known analogues (1, 6, and 7) were isolated from mangrove plant Acanthus ilicifolius derived endophytic fungus Aspergillus flavipes. The structures of these compounds were elucidated by NMR and MS analysis, the configurations were assigned by CD data, and the stereochemistry of 1 was confirmed by X-ray crystallography analysis. A possible biogenetic pathway of compounds 1–7 was also proposed. All compounds were evaluated for antibacterial and cytotoxic activities.
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Zhang Q, Xiao J, Sun QQ, Qin JC, Pescitelli G, Gao JM. Characterization of cytochalasins from the endophytic Xylaria sp. and their biological functions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:10962-9. [PMID: 25350301 DOI: 10.1021/jf503846z] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Bioassay-guided fractionation of the fermentation extract of Xylaria sp. XC-16, an endophyte from Toona sinensis led to the isolation of two new cytochalasans cytochalasin Z27, 1, and cytochalasin Z28, 2, along with three known compounds seco-cytochalasin E, 3, and cytochalasin Z18, 4, and cytochalasin E, 5. The structures of 1 and 2 were elucidated by spectroscopic and electronic circular dichroism methods. Compound 5 was shown to be potently cytotoxic against brine shrimp (LC50 = 2.79 μM), comparable to that of the positive agent toosendanin (LC50 = 4.03 μM), and also exhibited potential phytotoxic effects on Lactuca sativa and Raphanus sativus L. seedlings, which are higher than that of the positive control glyphosate. Additionally, the fungicidal effect of 2 against the phytopathogen Gibberella saubinetti was better than that of hymexazol. This is the first report of the three types of cytochalasins present in genus Xylaria. A structure-phytotoxicity activity relationship is also discussed.
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Affiliation(s)
- Qiang Zhang
- College of Science, Northwest A&F University , Yangling 712100, Shaanxi P. R. China
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Antagonistic Evaluation of Bioactive Metabolite from Endophytic Fungus, Aspergillus flavipes KF671231. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/371218] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Of the total 40 endophytic fungi isolated from foliar tissues of medicinal plant Stevia rebaudiana Bertoni, a fungal isolate, Aspergillus flavipes, was subjected to bioassay guided fractionation. The fractionation was found active against medicinal plant pathogen Sclerotinia sclerotiorum with an inhibition zone of 29 mm in size. Further the metabolite was extracted which shows 20% growth inhibition in 24 h and 46% after 48 h, respectively. Bioassay guided chemical compound was identified as 1,2-benzenedicarboxylic acid, mono(2-ethylhexyl) ester. On the basis of morphological characters and rDNA sequencing of ITS region the endophyte was identified as Aspergillus flavipes which showed promising plant growth promotory properties.
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30
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Isolation, structural analyses and biological activity assays against chronic lymphocytic leukemia of two novel cytochalasins - sclerotionigrin A and B. Molecules 2014; 19:9786-97. [PMID: 25006786 PMCID: PMC6271702 DOI: 10.3390/molecules19079786] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 06/24/2014] [Accepted: 07/02/2014] [Indexed: 12/23/2022] Open
Abstract
Two new cytochalasins, sclerotionigrin A (1) and B (2) were isolated together with the known proxiphomin (3) from the filamentous fungus Aspergillus sclerotioniger. The structures and relative stereochemistry of 1 and 2 were determined based on comparison with 3, and from extensive 1D and 2D NMR spectroscopic analysis, supported by high resolution mass spectrometry (HRMS). Compounds 2 and 3 displayed cytotoxic activity towards chronic lymphocytic leukemia cells in vitro, with 3 being the most active.
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31
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Hu Y, Dietrich D, Xu W, Patel A, Thuss JAJ, Wang J, Yin WB, Qiao K, Houk KN, Vederas JC, Tang Y. A carbonate-forming Baeyer-Villiger monooxygenase. Nat Chem Biol 2014; 10:552-4. [PMID: 24838010 PMCID: PMC4062580 DOI: 10.1038/nchembio.1527] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Accepted: 04/12/2014] [Indexed: 12/03/2022]
Abstract
Despite the remarkable versatility displayed by flavin-dependent monooxygenases (FMOs) in natural product biosynthesis, one notably missing activity is the oxidative generation of carbonate functional groups. We describe a multifunctional Baeyer-Villiger monooxygenase, CcsB, which catalyzes the formation of an in-line carbonate in the macrocyclic portion of cytochalasin E. This study expands the repertoire of activities of FMOs and provides a possible synthetic strategy for transformation of ketones into carbonates.
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Affiliation(s)
- Youcai Hu
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095 (USA)
| | - David Dietrich
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Wei Xu
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095 (USA)
| | - Ashay Patel
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095 (USA)
| | - Justin A. J. Thuss
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Jingjing Wang
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095 (USA)
| | - Wen-Bing Yin
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095 (USA)
| | - Kangjian Qiao
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095 (USA)
| | - Kendall N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095 (USA)
| | - John C. Vederas
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Yi Tang
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095 (USA)
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095 (USA)
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Xu J, Zhao S, Yang X. A new cyclopeptide metabolite of marine gut fungus from Ligia oceanica. Nat Prod Res 2014; 28:994-7. [DOI: 10.1080/14786419.2014.902945] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Jinzhong Xu
- Institute of Marine Biology, Ocean College, Zhejiang University, Hangzhou 310058, P.R. China
- Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, P.R. China
| | - Shizhe Zhao
- Institute of Marine Biology, Ocean College, Zhejiang University, Hangzhou 310058, P.R. China
| | - Xianwen Yang
- Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, P.R. China
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Bioactive secondary metabolites from Phomopsis sp., an endophytic fungus from Senna spectabilis. Molecules 2014; 19:6597-608. [PMID: 24858094 PMCID: PMC6271730 DOI: 10.3390/molecules19056597] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 05/14/2014] [Accepted: 05/19/2014] [Indexed: 11/23/2022] Open
Abstract
Chemical investigation of an acetonitrile fraction from the endophytic fungus Phomopsis sp. led to the isolation of the new natural product 2-hydroxy-alternariol (7) together with the known compounds cytochalasins J (1) and H (2), 5'-epialtenuene (3) and the mycotoxins alternariol monomethyl ether (AME, 4), alternariol (AOH, 5) and cytosporone C (6). The structure of the new compound was elucidated by using 1-D and 2-D NMR (nuclear magnetic resonance) and high resolution mass spectrometry. The cytochalasins J (1) and H (2) and AOH (5) exhibited potent inhibition of the total ROS (reactive oxygen species) produced by stimulated human neutrophils and acted as potent potential anti-inflammatory agents. Moreover, cytochalasin H (2) demonstrated antifungal and acetylcholinesterase enzyme (AChE) inhibition in vitro.
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34
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Liu JT, Hu B, Gao Y, Zhang JP, Jiao BH, Lu XL, Liu XY. Bioactive Tyrosine-Derived Cytochalasins from FungusEutypellasp. D-1. Chem Biodivers 2014; 11:800-6. [DOI: 10.1002/cbdv.201300218] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Indexed: 11/07/2022]
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35
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Bai ZQ, Lin X, Wang Y, Wang J, Zhou X, Yang B, Liu J, Yang X, Wang Y, Liu Y. New phenyl derivatives from endophytic fungus Aspergillus flavipes AIL8 derived of mangrove plant Acanthus ilicifolius. Fitoterapia 2014; 95:194-202. [PMID: 24704337 DOI: 10.1016/j.fitote.2014.03.021] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 03/22/2014] [Accepted: 03/25/2014] [Indexed: 12/01/2022]
Abstract
Two new aromatic butyrolactones, flavipesins A (1) and B (2), two new natural products (3 and 4), and a known phenyl dioxolanone (5) were isolated from marine-derived endophytic fungus Aspergillus flavipes. The structures of compounds 1-5 were elucidated by 1D- and 2D-NMR and MS analysis, the absolute configurations were assigned by optical rotation and CD data, and the stereochemistry of 1 was determined by X-ray crystallography analysis. 1 demonstrated lower MIC values against Staphylococcus aureus (8.0 μg/mL) and Bacillus subtillis (0.25 μg/mL). 1 also showed the unique antibiofilm activity of penetration through the biofilm matrix and kills live bacteria inside mature S. aureus biofilm.
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Affiliation(s)
- Zhi-Qiang Bai
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Key Laboratory of Marine Materia Medica/RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Guangdong Institute of Microbiology, Guangzhou 510070, China
| | - Xiuping Lin
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Key Laboratory of Marine Materia Medica/RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Yizhu Wang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China; Department of Genetics, School of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Junfeng Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Key Laboratory of Marine Materia Medica/RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Xuefeng Zhou
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Key Laboratory of Marine Materia Medica/RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Bin Yang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Key Laboratory of Marine Materia Medica/RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Juan Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Key Laboratory of Marine Materia Medica/RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Xianwen Yang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Key Laboratory of Marine Materia Medica/RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Yi Wang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yonghong Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Key Laboratory of Marine Materia Medica/RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
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37
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Affiliation(s)
- Hua 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, P. R. China
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38
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Debbab A, Aly AH, Proksch P. Mangrove derived fungal endophytes – a chemical and biological perception. FUNGAL DIVERS 2013. [DOI: 10.1007/s13225-013-0243-8] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Bioactive phenylalanine derivatives and cytochalasins from the soft coral-derived fungus, Aspergillus elegans. Mar Drugs 2013; 11:2054-68. [PMID: 23752358 PMCID: PMC3721221 DOI: 10.3390/md11062054] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 05/10/2013] [Accepted: 05/14/2013] [Indexed: 11/16/2022] Open
Abstract
One new phenylalanine derivative 4′-OMe-asperphenamate (1), along with one known phenylalanine derivative (2) and two new cytochalasins, aspochalasin A1 (3) and cytochalasin Z24 (4), as well as eight known cytochalasin analogues (5–12) were isolated from the fermentation broth of Aspergillus elegans ZJ-2008010, a fungus obtained from a soft coral Sarcophyton sp. collected from the South China Sea. Their structures and the relative configurations were elucidated using comprehensive spectroscopic methods. The absolute configuration of 1 was determined by chemical synthesis and Marfey’s method. All isolated metabolites (1–12) were evaluated for their antifouling and antibacterial activities. Cytochalasins 5, 6, 8 and 9 showed strong antifouling activity against the larval settlement of the barnacle Balanus amphitrite, with the EC50 values ranging from 6.2 to 37 μM. This is the first report of antifouling activity for this class of metabolites. Additionally, 8 exhibited a broad spectrum of antibacterial activity, especially against four pathogenic bacteria Staphylococcus albus, S. aureus, Escherichia coli and Bacillus cereus.
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Deng C, Huang C, Wu Q, Pang J, Lin Y. A new sesquiterpene from the mangrove endophytic fungus Aspergillus terreus (No. GX7-3B). Nat Prod Res 2013; 27:1882-7. [PMID: 23521163 DOI: 10.1080/14786419.2013.778847] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A new compound 1 (named botryosphaerin F), along with other three known compounds 2 (13,14,15,16-tetranorlabd-7-ene-19,6b:12,17-diolide), 3 (botryosphaerin B) and 4 (LL-Z1271β), has been isolated from the mangrove fungus Aspergillus terreus (No. GX7-3B). The structure of the new compound was established by analysis of spectroscopic data. The hypothetical biogenic relationship of four sesquiterpene analogues was also described in this paper. Furthermore, in the cytotoxicity assays, compound 1 showed potent inhibiting activity towards MCF-7 and HL-60 cancer cell lines with 50% inhibition of cell growth (IC50) values of 4.49 and 3.43 μM, respectively, and compound 4 exhibited promising activity against HL-60 cell line with an IC50 value of 0.6 μM.
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Affiliation(s)
- Chunmei Deng
- a School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou , 510275 , People's Republic of China
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Prado S, Li Y, Nay B. Diversity and Ecological Significance of Fungal Endophyte Natural Products. BIOACTIVE NATURAL PRODUCTS 2012. [DOI: 10.1016/b978-0-444-53836-9.00025-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Wang FZ, Wei HJ, Zhu TJ, Li DH, Lin ZJ, Gu QQ. Three new cytochalasins from the marine-derived fungus Spicaria elegans KLA03 by supplementing the cultures with L- and D-tryptophan. Chem Biodivers 2011; 8:887-94. [PMID: 21560237 DOI: 10.1002/cbdv.201000133] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Three new cytochalasins Z(21) -Z(23) (1-3, resp.), together with five analogs, 4-8, were isolated from Spicaria elegans KLA03 by the OSMAC (one strain-many compounds) approach with adding L- and D-tryptophan during its cultivation. The structures of new cytochalasins were elucidated on the basis of comprehensive 1D- and 2D-NMR and HR-ESI-MS analyses. Cytochalasins Z(21) and Z(22) (1 and 2, resp.), and compound 5 showed cytotoxic activities against A-549 cell lines with IC(50) values of 8.2, 20.0, and 3.1 μM, respectively.
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Affiliation(s)
- Fa-Zuo Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, P. R. China
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Cai S, Sun S, Zhou H, Kong X, Zhu T, Li D, Gu Q. Prenylated Polyhydroxy-p-terphenyls from Aspergillus taichungensis ZHN-7-07. JOURNAL OF NATURAL PRODUCTS 2011; 74:1106-10. [PMID: 21486068 DOI: 10.1021/np2000478] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Six new prenylated polyhydroxy-p-terphenyl metabolites, named prenylterphenyllins A-C (1-3) and prenylcandidusins A-C (5-7), and one new polyhydroxy-p-terphenyl with a simple tricyclic C-18 skeleton, named 4''-dehydro-3-hydroxyterphenyllin (4), were obtained together with eight known analogues (8-15) from Aspergillus taichungensis ZHN-7-07, a root soil fungus isolated from the mangrove plant Acrostichum aureum. Their structures were determined by spectroscopic methods, and their cytotoxicity was evaluated using HL-60, A-549, and P-388 cell lines. Compounds 1 and 8 exhibited moderate activities against all three cell lines (IC50 1.53-10.90 μM), whereas compounds 4 and 6 displayed moderate activities only against the P-388 cell line (IC50 of 2.70 and 1.57 μM, respectively).
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Affiliation(s)
- Shengxin Cai
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
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Blunt JW, Copp BR, Munro MHG, Northcote PT, Prinsep MR. Marine natural products. Nat Prod Rep 2010; 28:196-268. [PMID: 21152619 DOI: 10.1039/c005001f] [Citation(s) in RCA: 343] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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Scherlach K, Boettger D, Remme N, Hertweck C. The chemistry and biology of cytochalasans. Nat Prod Rep 2010; 27:869-86. [DOI: 10.1039/b903913a] [Citation(s) in RCA: 298] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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