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Zhao W, Zeng Y, Chang W, Chen H, Wang H, Dai H, Lv F. Potential α-Glucosidase Inhibitors from the Deep-Sea Sediment-Derived Fungus Aspergillus insulicola. Mar Drugs 2023; 21:md21030157. [PMID: 36976206 PMCID: PMC10056930 DOI: 10.3390/md21030157] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
Three new phenolic compounds, epicocconigrones C–D (1–2) and flavimycin C (3), together with six known phenolic compounds: epicocconigrone A (4); 2-(10-formyl-11,13-dihydroxy-12-methoxy-14-methyl)-6,7-dihydroxy-5-methyl-4-benzofurancarboxaldehyde (5); epicoccolide B (6); eleganketal A (7); 1,3-dihydro-5-methoxy-7-methylisobenzofuran (8); and 2,3,4-trihydroxy-6-(hydroxymethyl)-5-methylbenzyl-alcohol (9), were isolated from fermentation cultures of a deep-sea sediment-derived fungus, Aspergillus insulicola. Their planar structures were elucidated based on the 1D and 2D NMR spectra and HRESIMS data. The absolute configurations of compounds 1–3 were determined by ECD calculations. Compound 3 represented a rare fully symmetrical isobenzofuran dimer. All compounds were evaluated for their α-glucosidase inhibitory activity, and compounds 1, 4–7, and 9 exhibited more potent α-glucosidase inhibitory effect with IC50 values ranging from 17.04 to 292.47 μM than positive control acarbose with IC50 value of 822.97 μM, indicating that these phenolic compounds could be promising lead compounds of new hypoglycemic drugs.
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Affiliation(s)
- Weibo Zhao
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Science, Beijing Institute of Technology, Beijing 100081, China
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China
| | - Yanbo Zeng
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China
- Zhanjiang Experimental Station of Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524013, China
| | - Wenjun Chang
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China
- Zhanjiang Experimental Station of Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524013, China
| | - Huiqin Chen
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China
| | - Hao Wang
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China
| | - Haofu Dai
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences & Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China
| | - Fang Lv
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Science, Beijing Institute of Technology, Beijing 100081, China
- Correspondence:
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2
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Cryptic Metabolites from Marine-Derived Microorganisms Using OSMAC and Epigenetic Approaches. Mar Drugs 2022; 20:md20020084. [PMID: 35200614 PMCID: PMC8879561 DOI: 10.3390/md20020084] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/12/2022] [Accepted: 01/16/2022] [Indexed: 02/04/2023] Open
Abstract
Marine microorganisms have proven to be a source of new natural products with a wide spectrum of biological activities relevant in different industrial sectors. The ever-increasing number of sequenced microbial genomes has highlighted a discrepancy between the number of gene clusters potentially encoding the production of natural products and the actual number of chemically characterized metabolites for a given microorganism. Homologous and heterologous expression of these biosynthetic genes, which are often silent under experimental laboratory culture conditions, may lead to the discovery of new cryptic natural products of medical and biotechnological interest. Several new genetic and cultivation-based strategies have been developed to meet this challenge. The OSMAC approach (one strain—many compounds), based on modification of growth conditions, has proven to be a powerful strategy for the discovery of new cryptic natural products. As a direct extension of this approach, the addition of chemical elicitors or epigenetic modifiers have also been used to activate silent genes. This review looks at the structures and biological activities of new cryptic metabolites from marine-derived microorganisms obtained using the OSMAC approach, the addition of chemical elicitors, and enzymatic inhibitors and epigenetic modifiers. It covers works published up to June 2021.
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Extremophilic Fungi from Marine Environments: Underexplored Sources of Antitumor, Anti-Infective and Other Biologically Active Agents. Mar Drugs 2022; 20:md20010062. [PMID: 35049917 PMCID: PMC8781577 DOI: 10.3390/md20010062] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 02/07/2023] Open
Abstract
Marine environments are underexplored terrains containing fungi that produce a diversity of natural products given unique environmental pressures and nutrients. While bacteria are commonly the most studied microorganism for natural products in the marine world, marine fungi are also abundant but remain an untapped source of bioactive metabolites. Given that their terrestrial counterparts have been a source of many blockbuster antitumor agents and anti-infectives, including camptothecin, the penicillins, and cyclosporin A, marine fungi also have the potential to produce new chemical scaffolds as leads to potential drugs. Fungi are more phylogenetically diverse than bacteria and have larger genomes that contain many silent biosynthetic gene clusters involved in making bioactive compounds. However, less than 5% of all known fungi have been cultivated under standard laboratory conditions. While the number of reported natural products from marine fungi is steadily increasing, their number is still significantly lower compared to those reported from their bacterial counterparts. Herein, we discuss many varied cytotoxic and anti-infective fungal metabolites isolated from extreme marine environments, including symbiotic associations as well as extreme pressures, temperatures, salinity, and light. We also discuss cultivation strategies that can be used to produce new bioactive metabolites or increase their production. This review presents a large number of reported structures though, at times, only a few of a large number of related structures are shown.
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Pérez-Guevara R, Sarandeses LA, Martínez MM, Pérez Sestelo J. Indium-catalyzed synthesis of benzannulated spiroketals by intramolecular double hydroalkoxylation of ortho-(hydroxyalkynyl)benzyl alcohols. Org Chem Front 2022. [DOI: 10.1039/d2qo01600a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The novel indium-catalyzed synthesis of benzannulated spiroketals by a double intramolecular hydroalkoxylation reaction of o-(hydroxyalkynyl)benzyl alcohols is reported.
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Affiliation(s)
- Raquel Pérez-Guevara
- CICA – Centro Interdisciplinar de Química e Bioloxía and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain
| | - Luis A. Sarandeses
- CICA – Centro Interdisciplinar de Química e Bioloxía and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain
| | - M. Montserrat Martínez
- CICA – Centro Interdisciplinar de Química e Bioloxía and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain
| | - José Pérez Sestelo
- CICA – Centro Interdisciplinar de Química e Bioloxía and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain
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5
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Zeng T, Kong J, Wang H, Liu L, Chang W, Li J. Substituent‐Controlled Divergent Cascade Cycloaddition Reactions of Chalcones and Arylalkynols: Access to Spiroketals and
Oxa
‐Bridged Fused Heterocycles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100523] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Tianlong Zeng
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Jingyang Kong
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Hongkai Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Lingyan Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Weixing Chang
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Jing Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Weijin Road 94#, Nankai District Tianjin 300071 People's Republic of China
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6
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Wu X, Song S, Zhang X, Fu Y, Zhu C, Li Y. Copper‐Catalyzed Direct Oxidative α‐Alkoxylation of 4‐Isochromanones. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiang Wu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering Hefei University of Technology 193 Tunxi Road Hefei 230009 China
| | - Shuang‐Gui Song
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering Hefei University of Technology 193 Tunxi Road Hefei 230009 China
| | - Xin Zhang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering Hefei University of Technology 193 Tunxi Road Hefei 230009 China
| | - Yan‐Ming Fu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering Hefei University of Technology 193 Tunxi Road Hefei 230009 China
| | - Cheng‐Feng Zhu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering Hefei University of Technology 193 Tunxi Road Hefei 230009 China
| | - You‐Gui Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering Hefei University of Technology 193 Tunxi Road Hefei 230009 China
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7
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Chand S, Pandey AK, Singh R, Singh KN. Visible-Light-Induced Photocatalytic Oxidative Decarboxylation of Cinnamic Acids to 1,2-Diketones. J Org Chem 2021; 86:6486-6493. [PMID: 33851837 DOI: 10.1021/acs.joc.1c00322] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A concerted metallophotoredox catalysis has been realized for the efficient decarboxylative functionalization of α,β-unsaturated carboxylic acids with aryl iodides in the presence of perylene bisimide dye to afford 1,2-diketones.
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Affiliation(s)
- Shiv Chand
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Anand Kumar Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Rahul Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Krishna Nand Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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8
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Peng XG, Liu J, Gao Y, Cheng F, Chang JL, Chen J, Duan FF, Ruan HL. Pchaeglobolactone A, Spiropchaeglobosin A, and Pchaeglobosals A and B: Four Rearranged Cytochalasans from Chaetomium globosum P2-2-2. Org Lett 2020; 22:9665-9669. [PMID: 33270452 DOI: 10.1021/acs.orglett.0c03623] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Four novel rearranged cytochalasans (1-4) were isolated from an endophytic fungus Chaetomium globosum P2-2-2. Pchaeglobolactone A (1) possessed an unprecedented 13-aza-21-oxa-tetracyclo-[10.6.1.217,19.015,19]henicosane core. Spiropchaeglobosin A (2) was the first example of cytochalasans featuring a novel spiro[5.10]hexadecane unit. Pchaeglobosals A (3) and B (4) featured a unique 5/5/13 fused tricyclic ring system. Compounds 1-4 were tested for their antiproliferative, apoptosis, cell cycle arrest, and TRAIL-resistance-overcoming activities on cancer cell lines.
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Affiliation(s)
- Xiao-Gang Peng
- School of Pharmacy, Tongji Medical College, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Huazhong University of Science and Technology, Wuhan 430030, P. R. China
| | - Junjun Liu
- School of Pharmacy, Tongji Medical College, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Huazhong University of Science and Technology, Wuhan 430030, P. R. China
| | - Ying Gao
- School of Pharmacy, Tongji Medical College, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Huazhong University of Science and Technology, Wuhan 430030, P. R. China
| | - Fang Cheng
- School of Pharmacy, Tongji Medical College, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Huazhong University of Science and Technology, Wuhan 430030, P. R. China
| | - Jin-Ling Chang
- School of Pharmacy, Tongji Medical College, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Huazhong University of Science and Technology, Wuhan 430030, P. R. China
| | - Juan Chen
- School of Pharmacy, Tongji Medical College, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Huazhong University of Science and Technology, Wuhan 430030, P. R. China
| | - Fang-Fang Duan
- School of Pharmacy, Tongji Medical College, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Huazhong University of Science and Technology, Wuhan 430030, P. R. China
| | - Han-Li Ruan
- School of Pharmacy, Tongji Medical College, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Huazhong University of Science and Technology, Wuhan 430030, P. R. China
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9
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Zhu G, Hou C, Yuan W, Wang Z, Zhang J, Jiang L, Karthik L, Li B, Ren B, Lv K, Lu W, Cong Z, Dai H, Hsiang T, Zhang L, Liu X. Molecular networking assisted discovery and biosynthesis elucidation of the antimicrobial spiroketals epicospirocins. Chem Commun (Camb) 2020; 56:10171-10174. [PMID: 32748904 DOI: 10.1039/d0cc03990j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Two pairs of dibenzospiroketal racemates, (±)-epicospirocin A (1a/1b) and (±)-1-epi-epicospirocin A (2a/2b), and two (+)-enantiomers of aspermicrones, ent-aspermicrone B (3b) and ent-aspermicrone C (4b), together with two hemiacetal epimeric mixtures, epicospirocin B/1-epi-epicospirocin B (5/6) and epicospirocin C/1-epi-epicospirocin C (7/8), were investigated from the phytopathogenic fungus Epicoccum nigrum 09116 via MS/MS molecular networking guided isolation and chiral separation for the first time. A plausible epicospirocin biosynthetic pathway was elucidated through in silico gene function annotation together with knock-out experiments. This is the first report that has applied MS/MS molecular networking to identify intermediates correlated with a biosynthetic pathway.
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Affiliation(s)
- Guoliang Zhu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China.
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10
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Peng X, Duan F, He Y, Gao Y, Chen J, Chang J, Ruan H. Ergocytochalasin A, a polycyclic merocytochalasan from an endophytic fungus Phoma multirostrata XJ-2-1. Org Biomol Chem 2020; 18:4056-4062. [DOI: 10.1039/d0ob00701c] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Ergocytochalasin A (1), an unprecedented merocytochalasan with a 5/6/14/6/5/6/6/6 fused octacyclic ring system, was isolated from an endophytic fungus Phoma multirostrata XJ-2-1.
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Affiliation(s)
- Xiaogang Peng
- School of Pharmacy
- Tongji Medical College
- Huazhong University of Science and Technology
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation
- Wuhan 430030
| | - Fangfang Duan
- School of Pharmacy
- Tongji Medical College
- Huazhong University of Science and Technology
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation
- Wuhan 430030
| | - Yangzhou He
- School of Pharmacy
- Tongji Medical College
- Huazhong University of Science and Technology
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation
- Wuhan 430030
| | - Ying Gao
- School of Pharmacy
- Tongji Medical College
- Huazhong University of Science and Technology
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation
- Wuhan 430030
| | - Juan Chen
- School of Pharmacy
- Tongji Medical College
- Huazhong University of Science and Technology
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation
- Wuhan 430030
| | - Jinling Chang
- School of Pharmacy
- Tongji Medical College
- Huazhong University of Science and Technology
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation
- Wuhan 430030
| | - Hanli Ruan
- School of Pharmacy
- Tongji Medical College
- Huazhong University of Science and Technology
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation
- Wuhan 430030
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11
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Kang HH, Zhong MJ, Ma LY, Rong XG, Liu DS, Liu WZ. Iizukines C−E from a saline soil fungus Aspergillus iizukae. Bioorg Chem 2019; 91:103167. [DOI: 10.1016/j.bioorg.2019.103167] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 06/11/2019] [Accepted: 07/29/2019] [Indexed: 12/31/2022]
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12
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Aspermicrones A-C, novel dibenzospiroketals from the seaweed-derived endophytic fungus Aspergillus micronesiensis. J Antibiot (Tokyo) 2019; 72:843-847. [DOI: 10.1038/s41429-019-0214-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/02/2019] [Accepted: 07/04/2019] [Indexed: 01/26/2023]
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13
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Pan R, Bai X, Chen J, Zhang H, Wang H. Exploring Structural Diversity of Microbe Secondary Metabolites Using OSMAC Strategy: A Literature Review. Front Microbiol 2019; 10:294. [PMID: 30863377 PMCID: PMC6399155 DOI: 10.3389/fmicb.2019.00294] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 02/04/2019] [Indexed: 12/27/2022] Open
Abstract
Microbial secondary metabolites (MSMs) have played and continue to play a highly significant role in the drug discovery and development process. Genetically, MSM chemical structures are biologically synthesized by microbial gene clusters. Recently, however, the speed of new bioactive MSM discovery has been slowing down due to consistent employment of conventional cultivation and isolation procedure. In order to alleviate this challenge, a number of new approaches have been developed. The strategy of one strain many compounds (OSMAC) has been shown as a simple and powerful tool that can activate many silent biogenetic gene clusters in microorganisms to make more natural products. This review highlights important and successful examples using OSMAC approaches, which covers changing medium composition and cultivation status, co-cultivation with other strain(s), adding enzyme inhibitor(s) and MSM biosynthetic precursor(s). Available evidences had shown that variation of cultivation condition is the most effective way to produce more MSMs and facilitate the discovery of new therapeutic agents.
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Affiliation(s)
- Rui Pan
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Xuelian Bai
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Jianwei Chen
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Huawei Zhang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Hong Wang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
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Gillard RM, Brimble MA. Benzannulated spiroketal natural products: isolation, biological activity, biosynthesis, and total synthesis. Org Biomol Chem 2019; 17:8272-8307. [DOI: 10.1039/c9ob01598a] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A review discussing the isolation, biological activity, biosynthesis, and total synthesis of naturally occurring benzannulated spiroketals.
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Affiliation(s)
- Rachel M. Gillard
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
| | - Margaret A. Brimble
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery
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15
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Extending the "One Strain Many Compounds" (OSMAC) Principle to Marine Microorganisms. Mar Drugs 2018; 16:md16070244. [PMID: 30041461 PMCID: PMC6070831 DOI: 10.3390/md16070244] [Citation(s) in RCA: 156] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 07/17/2018] [Accepted: 07/19/2018] [Indexed: 02/07/2023] Open
Abstract
Genomic data often highlights an inconsistency between the number of gene clusters identified using bioinformatic approaches as potentially producing secondary metabolites and the actual number of chemically characterized secondary metabolites produced by any given microorganism. Such gene clusters are generally considered as “silent”, meaning that they are not expressed under laboratory conditions. Triggering expression of these “silent” clusters could result in unlocking the chemical diversity they control, allowing the discovery of novel molecules of both medical and biotechnological interest. Therefore, both genetic and cultivation-based techniques have been developed aimed at stimulating expression of these “silent” genes. The principles behind the cultivation based approaches have been conceptualized in the “one strain many compounds” (OSMAC) framework, which underlines how a single strain can produce different molecules when grown under different environmental conditions. Parameters such as, nutrient content, temperature, and rate of aeration can be easily changed, altering the global physiology of a microbial strain and in turn significantly affecting its secondary metabolism. As a direct extension of such approaches, co-cultivation strategies and the addition of chemical elicitors have also been used as cues to activate “silent” clusters. In this review, we aim to provide a focused and comprehensive overview of these strategies as they pertain to marine microbes. Moreover, we underline how changes in some parameters which have provided important results in terrestrial microbes, but which have rarely been considered in marine microorganisms, may represent additional strategies to awaken “silent” gene clusters in marine microbes. Unfortunately, the empirical nature of the OSMAC approach forces scientists to perform extensive laboratory experiments. Nevertheless, we believe that some computation and experimental based techniques which are used in other disciplines, and which we discuss; could be effectively employed to help streamline the OSMAC based approaches. We believe that natural products discovery in marine microorganisms would be greatly aided through the integration of basic microbiological approaches, computational methods, and technological innovations, thereby helping unearth much of the as yet untapped potential of these microorganisms.
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16
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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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Xing S, Gu N, Qin J, Cui H, Li Y, Wang K, Tian D, Chen B, Yu G. Construction of 4-Isochromanones through Cu(OTf)2
-Catalysed Sequential C=O and C-O Bond Formation. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701808] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Siyang Xing
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Nan Gu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Jiajing Qin
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Hong Cui
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Yan Li
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Kui Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Dawei Tian
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Bo Chen
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Guo Yu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
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18
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Zhang FM, Zhang SY, Tu YQ. Recent progress in the isolation, bioactivity, biosynthesis, and total synthesis of natural spiroketals. Nat Prod Rep 2018; 35:75-104. [DOI: 10.1039/c7np00043j] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The isolation, bioactivity, biosynthesis, and total synthesis of natural spiroketals from 2011 to July 2017 have been summarized in this review.
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Affiliation(s)
- Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Shu-Yu Zhang
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
- School of Chemistry and Chemical Engineering
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19
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Zou S, Wang Z, Wang J, Wei G, Wang W, Zang Y, Zeng F, Chen K, Liu J, Wang J, Luo Z, Xue Y, Zhu H, Yin C, Chen C, Zhang Y. Azacoccones A − E, five new aza-epicoccone derivatives from Aspergillus flavipes. Fitoterapia 2018; 124:127-131. [DOI: 10.1016/j.fitote.2017.10.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 10/23/2017] [Accepted: 10/25/2017] [Indexed: 11/16/2022]
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20
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Li G, Lou HX. Strategies to diversify natural products for drug discovery. Med Res Rev 2017; 38:1255-1294. [PMID: 29064108 DOI: 10.1002/med.21474] [Citation(s) in RCA: 162] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 09/18/2017] [Accepted: 09/28/2017] [Indexed: 12/11/2022]
Abstract
Natural product libraries contain specialized metabolites derived from plants, animals, and microorganisms that play a pivotal role in drug discovery due to their immense structural diversity and wide variety of biological activities. The strategies to greatly extend natural product scaffolds through available biological and chemical approaches offer unique opportunities to access a new series of natural product analogues, enabling the construction of diverse natural product-like libraries. The affordability of these structurally diverse molecules has been a crucial step in accelerating drug discovery. This review provides an overview of various approaches to exploit the diversity of compounds for natural product-based drug development, drawing upon a series of examples to illustrate each strategy.
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Affiliation(s)
- Gang Li
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, China
| | - Hong-Xiang Lou
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, China.,Department of Natural Products Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, China
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21
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Wang L, Li X, Tao H, Zhou X, Lu X, Du W, Jiang T, Xin Z, Liang J. Palladium-catalyzed intermolecular tandem cyclization reaction: a highly regioselective synthesis of functionalized 3H-spiro[isobenzofuran-1,3'-isochroman] scaffolds. Org Biomol Chem 2017; 15:2403-2410. [PMID: 28252150 DOI: 10.1039/c6ob02802k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly regioselective synthesis of functionalized 3H-spiro[isobenzofuran-1,3'-isochroman] scaffolds using a novel palladium-catalyzed tandem cyclization reaction is explored. During the reaction process, C-O, C-C and C-O bonds are sequentially formed in one pot via decarboxylative allenylpalladium formation, nucleophilic attack, arylpalladium addition and intramolecular nucleophilic attack.
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Affiliation(s)
- Liang Wang
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd, Lanzhou, Gansu 730000, P. R. China.
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22
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Zhou H, Li L, Wu C, Kurtán T, Mándi A, Liu Y, Gu Q, Zhu T, Guo P, Li D. Penipyridones A-F, Pyridone Alkaloids from Penicillium funiculosum. JOURNAL OF NATURAL PRODUCTS 2016; 79:1783-1790. [PMID: 27359163 DOI: 10.1021/acs.jnatprod.6b00218] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Six new pyridone alkaloids, named penipyridones A-F (1-6), were isolated from the fermentation broth of an Antarctic moss-derived fungus, Penicillium funiculosum GWT2-24. Their structures were elucidated from extensive NMR and MS data. Although they possess the same major chromophore and some of them presented almost mirror ECD spectra, their absolute configurations were found to be uniformly S, as evidenced by X-ray single-crystal diffraction analysis, stereocontrolled total synthesis, and chemical conversions. TDDFT-ECD calculations of compounds 3 and 6 revealed that subtle conformational changes are responsible for the significantly different ECD curves. None of the compounds were cytotoxic (IC50 > 50 μM), while compounds 1, 2, 5, and 7 elicited lipid-lowering activity in HepG2 hepatocytes.
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Affiliation(s)
- Haibo Zhou
- 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
| | - Liyuan Li
- 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
| | - Chongming Wu
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College , Beijing 100193, People's Republic of China
| | - Tibor Kurtán
- Department of Organic Chemistry, University of Debrecen , POB 20, 4010 Debrecen, Hungary
| | - Attila Mándi
- Department of Organic Chemistry, University of Debrecen , POB 20, 4010 Debrecen, Hungary
| | - Yankai Liu
- 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
| | - Qianqun Gu
- 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
| | - Tianjiao Zhu
- 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
| | - Peng Guo
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College , Beijing 100193, People's Republic of China
| | - Dehai Li
- 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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23
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Potential Pharmacological Resources: Natural Bioactive Compounds from Marine-Derived Fungi. Mar Drugs 2016; 14:md14040076. [PMID: 27110799 PMCID: PMC4849080 DOI: 10.3390/md14040076] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/11/2016] [Accepted: 03/29/2016] [Indexed: 11/16/2022] Open
Abstract
In recent years, a considerable number of structurally unique metabolites with biological and pharmacological activities have been isolated from the marine-derived fungi, such as polyketides, alkaloids, peptides, lactones, terpenoids and steroids. Some of these compounds have anticancer, antibacterial, antifungal, antiviral, anti-inflammatory, antioxidant, antibiotic and cytotoxic properties. This review partially summarizes the new bioactive compounds from marine-derived fungi with classification according to the sources of fungi and their biological activities. Those fungi found from 2014 to the present are discussed.
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24
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Abstract
This review covers the literature published in 2014 for marine natural products (MNPs), with 1116 citations (753 for the period January to December 2014) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1378 in 456 papers for 2014), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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25
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Zhu H, Chen C, Tong Q, Li XN, Yang J, Xue Y, Luo Z, Wang J, Yao G, Zhang Y. Epicochalasines A and B: Two Bioactive Merocytochalasans Bearing Caged Epicoccine Dimer Units from Aspergillus flavipes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511315] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- 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 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 China
| | - Qingyi Tong
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation; School of Pharmacy; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430030 China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China; Kunming Institute of Botany; Chinese Academy of Sciences; Kunming 650204 China
| | - Jing Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China; Kunming Institute of Botany; Chinese Academy of Sciences; Kunming 650204 China
| | - Yongbo Xue
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation; School of Pharmacy; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430030 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 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 China
| | - Guangmin Yao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation; School of Pharmacy; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430030 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 China
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26
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Zhu H, Chen C, Tong Q, Li XN, Yang J, Xue Y, Luo Z, Wang J, Yao G, Zhang Y. Epicochalasines A and B: Two Bioactive Merocytochalasans Bearing Caged Epicoccine Dimer Units from Aspergillus flavipes. Angew Chem Int Ed Engl 2016; 55:3486-90. [PMID: 26836964 DOI: 10.1002/anie.201511315] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Indexed: 11/09/2022]
Abstract
Two bioactive merocytochalasans, epicochalasines A (1) and B (2), a new class of cytochalasans bearing unexpected scaffolds consisting of fused aspochalasin and epicoccine dimer moieties, were isolated from the liquid culture broth of Aspergillus flavipes. Both 1 and 2 possess a hendecacyclic 5/6/11/5/6/5/6/5/6/6/5 ring system containing an adamantyl cage and as many as 19 stereogenic centers; however, the fusion patterns of 1 and 2 differ greatly, thus resulting in different carbon skeletons. The absolute configurations of 1 and 2 were determined by X-ray diffraction and calculated ECD, respectively. The biogenetic pathways of 1 and 2 are proposed to involve Diels-Alder and nucleophilic addition reactions. Both 1 and 2 induced significant G2/M-phase cell-cycle arrest. Furthermore, we found that merocytochalasans induce apoptosis in leukemia cells through the activation of caspase-3 and the degradation of PARP.
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Affiliation(s)
- 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, 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, China
| | - Qingyi Tong
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, China
| | - Jing Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, China
| | - Yongbo Xue
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, 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, 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, China
| | - Guangmin Yao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, 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, China.
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27
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Guo W, Zhang Z, Zhu T, Gu Q, Li D. Penicyclones A-E, Antibacterial Polyketides from the Deep-Sea-Derived Fungus Penicillium sp. F23-2. JOURNAL OF NATURAL PRODUCTS 2015; 78:2699-2703. [PMID: 26540093 DOI: 10.1021/acs.jnatprod.5b00655] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Five new ambuic acid analogues, penicyclones A-E (1-5), were isolated from the extract of the deep-sea-derived fungus Penicillium sp. F23-2. The structures including the absolute configurations were established by interpretation of NMR and MS data, as well as the application of ECD, X-ray crystallography, and a chemical conversion, as well as the TDDFT-ECD calculations. Penicyclones A-E (1-5) exhibited antimicrobial activity against the Gram-positive bacterium Staphylococcus aureus with MIC values ranging from 0.3 to 1.0 μg/mL.
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Affiliation(s)
- Wenqiang Guo
- 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
| | - Zhenzhen Zhang
- 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
| | - Tianjiao Zhu
- 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
| | - Qianqun Gu
- 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
| | - Dehai Li
- 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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28
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Lin Z, Ma X, Wei H, Li D, Gu Q, Zhu T. Spicarins A–D from acetylated extract of fungus Spicaria elegans KLA03. RSC Adv 2015. [DOI: 10.1039/c5ra01923k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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