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Zhao WY, Yi J, Chang YB, Sun CP, Ma XC. Recent studies on terpenoids in Aspergillus fungi: Chemical diversity, biosynthesis, and bioactivity. PHYTOCHEMISTRY 2022; 193:113011. [PMID: 34775270 DOI: 10.1016/j.phytochem.2021.113011] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 11/06/2021] [Accepted: 11/06/2021] [Indexed: 06/13/2023]
Abstract
Metabolites from fungi are a major source of natural small molecule drugs in addition to plants, while fungal derived terpenoids have been confirmed to have great potentials in many diseases. Aspergillus fungi are distributed in every corner of the earth, and their terpenoid metabolites exhibit promising diversity in term of both their chemistry and bioactivity. This review attempted to provide timely and comprehensive coverage of chemical, biosynthesis, and biological studies on terpenoids discovered from the genus Aspergillus, including mono-, sesqui-, di-, sester-, tri-, and meroterpenoids, in the last decade. The structural characteristics, biosynthesis, and pharmacological activities of 288 terpenoids were introduced.
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Affiliation(s)
- Wen-Yu Zhao
- Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, College of Pharmacy, College (Institute) of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Jing Yi
- Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, College of Pharmacy, College (Institute) of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Yi-Bo Chang
- Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, College of Pharmacy, College (Institute) of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Cheng-Peng Sun
- Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, College of Pharmacy, College (Institute) of Integrative Medicine, Dalian Medical University, Dalian, China.
| | - Xiao-Chi Ma
- Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, College of Pharmacy, College (Institute) of Integrative Medicine, Dalian Medical University, Dalian, China; Pharmaceutical Research Center, Second Affiliated Hospital, Dalian Medical University, Dalian, China.
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2
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Evaluation of Aspergillus aculeatus GC-09 for the biological control of citrus blue mold caused by Penicillium italicum. Fungal Biol 2022; 126:201-212. [DOI: 10.1016/j.funbio.2021.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/11/2021] [Accepted: 12/29/2021] [Indexed: 01/01/2023]
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3
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Chen L, Guttieres D, Koenigsberg A, Barone PW, Sinskey AJ, Springs SL. Large-scale cultured meat production: Trends, challenges and promising biomanufacturing technologies. Biomaterials 2021; 280:121274. [PMID: 34871881 DOI: 10.1016/j.biomaterials.2021.121274] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 11/17/2021] [Accepted: 11/23/2021] [Indexed: 02/07/2023]
Abstract
Food systems of the future will need to face an increasingly clear reality - that a protein-rich diet is essential for good health, but traditional meat products will not suffice to ensure safety, sustainability, and equity of food supply chains at a global scale. This paper provides an in-depth analysis of bioprocess technologies needed for cell-based meat production and challenges in reaching commercial scale. Specifically, it reviews state-of-the-art bioprocess technologies, current limitations, and opportunities for research across four domains: cell line development, cell culture media, scaffolding, and bioreactors. This also includes exploring innovations to make cultured meat a viable protein alternative across numerous key performance indicators and for specific applications where traditional livestock is not an option (e.g., local production, space exploration). The paper explores tradeoffs between production scale, product quality, production cost, and footprint over different time horizons. Finally, a discussion explores various factors that may impact the ability to successfully scale and market cultured meat products: social acceptance, environmental tradeoffs, regulatory guidance, and public health benefits. While the exact nature of the transition from traditional livestock to alternative protein products is uncertain, it has already started and will likely continue to build momentum in the next decade.
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Affiliation(s)
- Lu Chen
- Massachusetts Institute of Technology, Center for Biomedical Innovation, Cambridge, MA, United States
| | - Donovan Guttieres
- Massachusetts Institute of Technology, Center for Biomedical Innovation, Cambridge, MA, United States
| | - Andrea Koenigsberg
- Massachusetts Institute of Technology, Center for Biomedical Innovation, Cambridge, MA, United States
| | - Paul W Barone
- Massachusetts Institute of Technology, Center for Biomedical Innovation, Cambridge, MA, United States
| | - Anthony J Sinskey
- Massachusetts Institute of Technology, Center for Biomedical Innovation, Cambridge, MA, United States
| | - Stacy L Springs
- Massachusetts Institute of Technology, Center for Biomedical Innovation, Cambridge, MA, United States.
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Zhang X, Guo J, Cheng F, Li S. Cytochrome P450 enzymes in fungal natural product biosynthesis. Nat Prod Rep 2021; 38:1072-1099. [PMID: 33710221 DOI: 10.1039/d1np00004g] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Covering: 2015 to the end of 2020 Fungal-derived polyketides, non-ribosomal peptides, terpenoids and their hybrids contribute significantly to the chemical space of total natural products. Cytochrome P450 enzymes play essential roles in fungal natural product biosynthesis with their broad substrate scope, great catalytic versatility and high frequency of involvement. Due to the membrane-bound nature, the functional and mechanistic understandings for fungal P450s have been limited for quite a long time. However, recent technical advances, such as the efficient and precise genome editing techniques and the development of several filamentous fungal strains as heterologous P450 expression hosts, have led to remarkable achievements in fungal P450 studies. Here, we provide a comprehensive review to cover the most recent progresses from 2015 to 2020 on catalytic functions and mechanisms, research methodologies and remaining challenges in the fast-growing field of fungal natural product biosynthetic P450s.
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Affiliation(s)
- Xingwang Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China. and Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong 266237, China
| | - Jiawei Guo
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China.
| | - Fangyuan Cheng
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China.
| | - Shengying Li
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China. and Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong 266237, China
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Wu X, Tan Y, Yi J, Song X, Yang J, Zhou X, Chen G. Study on Bioactive Secondary Metabolites from Penicillium herquei JX4. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202009038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Niu G, Hao Y, Wang X, Gao JM, Li J. Fungal Metabolite Asperaculane B Inhibits Malaria Infection and Transmission. Molecules 2020; 25:E3018. [PMID: 32630339 PMCID: PMC7412362 DOI: 10.3390/molecules25133018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 06/28/2020] [Accepted: 06/29/2020] [Indexed: 11/16/2022] Open
Abstract
Mosquito-transmitted Plasmodium parasites cause millions of people worldwide to suffer malaria every year. Drug-resistant Plasmodium parasites and insecticide-resistant mosquitoes make malaria hard to control. Thus, the next generation of antimalarial drugs that inhibit malaria infection and transmission are needed. We screened our Global Fungal Extract Library (GFEL) and obtained a candidate that completely inhibited Plasmodium falciparum transmission to Anopheles gambiae. The candidate fungal strain was determined as Aspergillus aculeatus. The bioactive compound was purified and identified as asperaculane B. The concentration of 50% inhibition on P. falciparum transmission (IC50) is 7.89 µM. Notably, asperaculane B also inhibited the development of asexual P. falciparum with IC50 of 3 µM, and it is nontoxic to human cells. Therefore, asperaculane B is a new dual-functional antimalarial lead that has the potential to treat malaria and block malaria transmission.
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Affiliation(s)
- Guodong Niu
- Department of Biological Sciences, Biomolecular Sciences Institute, Florida International University, Miami, FL 33199, USA; (G.N.); (X.W.)
| | - Yue Hao
- College of Public Health, South China University, Hengyang, Hunan 421001, China;
| | - Xiaohong Wang
- Department of Biological Sciences, Biomolecular Sciences Institute, Florida International University, Miami, FL 33199, USA; (G.N.); (X.W.)
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products Chemical Biology, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China;
| | - Jun Li
- Department of Biological Sciences, Biomolecular Sciences Institute, Florida International University, Miami, FL 33199, USA; (G.N.); (X.W.)
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Isolation and Characterization of a New Endophytic Actinobacterium Streptomyces californicus Strain ADR1 as a Promising Source of Anti-Bacterial, Anti-Biofilm and Antioxidant Metabolites. Microorganisms 2020; 8:microorganisms8060929. [PMID: 32575628 PMCID: PMC7355773 DOI: 10.3390/microorganisms8060929] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 06/01/2020] [Accepted: 06/05/2020] [Indexed: 11/29/2022] Open
Abstract
In view of the fast depleting armamentarium of drugs against significant pathogens, like methicillin-resistant Staphylococcus aureus (MRSA) and others due to rapidly emerging drug-resistance, the discovery and development of new drugs need urgent action. In this endeavor, a new strain of endophytic actinobacterium was isolated from the plant Datura metel, which produced secondary metabolites with potent anti-infective activities. The isolate was identified as Streptomyces californicus strain ADR1 based on 16S rRNA gene sequence analysis. Metabolites produced by the isolate had been investigated for their antibacterial attributes against important pathogens: S. aureus, MRSA, S. epidermis, Enterococcus faecium and E. faecalis. Minimum inhibitory concentration (MIC90) values against these pathogens varied from 0.23 ± 0.01 to 5.68 ± 0.20 μg/mL. The metabolites inhibited biofilm formation by the strains of S. aureus and MRSA (Biofilm inhibitory concentration [BIC90] values: 0.74 ± 0.08–4.92 ± 0.49 μg/mL). The BIC90 values increased in the case of pre-formed biofilms. Additionally, the metabolites possessed good antioxidant properties, with an inhibitory concentration (IC90) value of 217.24 ± 6.77 µg/mL for 1, 1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging. An insight into different classes of compounds produced by the strain ADR1 was obtained by chemical profiling and GC-MS analysis, wherein several therapeutic classes, for example, alkaloids, phenolics, terpenes, terpenoids and glycosides, were discovered.
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Gao YQ, Du ST, Xiao J, Wang DC, Han WB, Zhang Q, Gao JM. Isolation and Characterization of Antifungal Metabolites from the Melia azedarach-Associated Fungus Diaporthe eucalyptorum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:2418-2425. [PMID: 32011876 DOI: 10.1021/acs.jafc.9b07825] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Two biosynthetically related new metabolites, eucalyptacid A (1) and eucalactam B (2), along with six known compounds (3-8), eugenitol (3), cytosporone C (4), 4-hydroxyphenethyl alcohol (5), 1-(4-hydroxyphenyl)ethane-1,2-diol (6), N-(2-hydroxy-2-phenylethyl)acetamide (7), and phomopene (8), were isolated from the solid rice cultures of the endophytic fungus Diaporthe eucalyptorum KY-9 that had been isolated from Melia azedarach. Also, two further new derivatives (2a, 2b) were prepared from 2. The structures were elucidated by exhaustive analysis of NMR and ESIMS data and chemical methods such as Marfey's protocol. Compound 1 was identified as a rare polyketide fatty acid, (8E)-3,5,11-trihydroxy-2,10,12-trimethyltetradecenoic acid, and 2 was determined to be the first cyclic depsipeptide containing the same fatty acid unit as 1 and a Gly-Gly-Thr tripeptide chain. Its N-terminal end is N-acylated by an 11-hydroxy fatty acid with a branch alkyl chain of 14:1. The 11-hydroxyl group connects to the carboxylic group of the C-terminal amino acid to form a 22-membered lactone ring. A hypothetical biosynthetic pathway for the new polyketides is proposed. The isolated compounds were assayed for their inhibition against four plant pathogenic fungi, Alternaria solani, Botrytis cinerea, Fusarium solani, and Gibberella saubinettii. Compounds 1, 4, 6, and 7 exhibited antifungal activities against Alternaria solani, with minimal inhibitory concentration (MIC) values from 6.25 to 50 μM. Thus, strain KY-9 represents an untapped source for the development of biological control agents to prevent the infection of pathogenic fungus A. solani.
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Affiliation(s)
- Yu-Qi Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy , Northwest A&F University , Yangling 712100 , People's Republic of China
| | - Shuang-Tian Du
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy , Northwest A&F University , Yangling 712100 , People's Republic of China
| | - Jian Xiao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy , Northwest A&F University , Yangling 712100 , People's Republic of China
| | - Da-Cheng Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy , Northwest A&F University , Yangling 712100 , People's Republic of China
| | - Wen-Bo Han
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy , Northwest A&F University , Yangling 712100 , People's Republic of China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy , Northwest A&F University , Yangling 712100 , People's Republic of China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy , Northwest A&F University , Yangling 712100 , People's Republic of China
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Lee C, Chen L, Chiang C, Lai C, Lin H. The Biosynthesis of Norsesquiterpene Aculenes Requires Three Cytochrome P450 Enzymes to Catalyze a Stepwise Demethylation Process. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910200] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chi‐Fang Lee
- Institute of Biological ChemistryAcademia SinicaInstitute of Biochemical SciencesNational Taiwan University Taipei Taiwan R.O.C
| | - Li‐Xun Chen
- Institute of Biological ChemistryAcademia SinicaInstitute of Biochemical SciencesNational Taiwan University Taipei Taiwan R.O.C
| | - Chen‐Yu Chiang
- Institute of Biological ChemistryAcademia SinicaInstitute of Biochemical SciencesNational Taiwan University Taipei Taiwan R.O.C
| | - Chen‐Yu Lai
- Institute of Biological ChemistryAcademia SinicaInstitute of Biochemical SciencesNational Taiwan University Taipei Taiwan R.O.C
| | - Hsiao‐Ching Lin
- Institute of Biological ChemistryAcademia SinicaInstitute of Biochemical SciencesNational Taiwan University Taipei Taiwan R.O.C
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10
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Lee C, Chen L, Chiang C, Lai C, Lin H. The Biosynthesis of Norsesquiterpene Aculenes Requires Three Cytochrome P450 Enzymes to Catalyze a Stepwise Demethylation Process. Angew Chem Int Ed Engl 2019; 58:18414-18418. [DOI: 10.1002/anie.201910200] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 10/10/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Chi‐Fang Lee
- Institute of Biological ChemistryAcademia SinicaInstitute of Biochemical SciencesNational Taiwan University Taipei Taiwan R.O.C
| | - Li‐Xun Chen
- Institute of Biological ChemistryAcademia SinicaInstitute of Biochemical SciencesNational Taiwan University Taipei Taiwan R.O.C
| | - Chen‐Yu Chiang
- Institute of Biological ChemistryAcademia SinicaInstitute of Biochemical SciencesNational Taiwan University Taipei Taiwan R.O.C
| | - Chen‐Yu Lai
- Institute of Biological ChemistryAcademia SinicaInstitute of Biochemical SciencesNational Taiwan University Taipei Taiwan R.O.C
| | - Hsiao‐Ching Lin
- Institute of Biological ChemistryAcademia SinicaInstitute of Biochemical SciencesNational Taiwan University Taipei Taiwan R.O.C
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Ma H, Wang F, Jin X, Jiang J, Hu S, Cheng L, Zhang G. A new diketopiperazine from an endophytic fungus Aspergillus aculeatus F027. Nat Prod Res 2019; 35:2370-2375. [PMID: 31617784 DOI: 10.1080/14786419.2019.1677652] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A new diketopiperazine cyclo-(L-Phe-N-ethyl-L-Glu) (1), along with two known diketopiperazines cyclo-(L-Pro-L-Leu) (2) and cyclo-(L-Pro-L-Phe) (3) were isolated from the cultures of an endophytic fungus Aspergillus aculeatus F027. The structures of these compounds were elucidated based on spectroscopic data. The configurations of these compounds were determined by advanced Marfey's analysis. Antibacterial activity of the diketopiperazines against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa were also evaluated.Supplemental data for this article can be accessed at https://doi.org/10.1080/14786419.2019.1677652.
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Affiliation(s)
- Haoran Ma
- Department of Pharmacy, Wuhan First Hospital , Wuhan , China
| | - Fuqian Wang
- Department of Pharmacy, Wuhan First Hospital , Wuhan , China
| | - Xiaoqi Jin
- School of Pharmacy, Hubei University of Chinese Medicine , Wuhan , China
| | - Jie Jiang
- Department of Pharmacy, Wuhan First Hospital , Wuhan , China
| | - Song Hu
- Department of Pharmacy, Wuhan First Hospital , Wuhan , China
| | - Lu Cheng
- Department of Pharmacy, Wuhan First Hospital , Wuhan , China
| | - Geng Zhang
- Department of Pharmacy, Wuhan First Hospital , Wuhan , China
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Yodsing N, Lekphrom R, Sangsopha W, Aimi T, Boonlue S. Secondary Metabolites and Their Biological Activity from Aspergillus aculeatus KKU-CT2. Curr Microbiol 2017; 75:513-518. [PMID: 29248948 DOI: 10.1007/s00284-017-1411-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 11/29/2017] [Indexed: 12/22/2022]
Abstract
The bioactive compounds of the fungus Aspergillus aculeatus strain KKU-CT2, have been studied. The crude extracts from this fungus showed good antimicrobial activity against human pathogens, including Gram-positive and Gram-negative bacteria and yeast-like fungi. Its chemical components were isolated and purified by chromatographic methods. The structures of the secondary metabolites were elucidated by spectroscopic methods (IR, 1H, and 13C NMR). They were identified as ergosterol peroxide (1), secalonic acid D (2), secalonic acid F (3), variecolin (4), variecolactone (5), and ergosterol (6). Compounds 1 and 4-6 are reported for the first time as fungal metabolites from this species. Compound 1 displayed inhibitory effects on HSV-1 with an IC50 of 11.01 μg/ml. Compounds 3, 4, and 6 exhibited antimalarial activity against Plasmodium falciparum with IC50 of 1.03, 1.47, and 5.31 µg/ml, respectively. Additionally, all compounds from A. aculeatus KKU-CT2 showed unprecedented anticancer activities against human epidermoid carcinoma in the mouth (KB) (compounds 1-6), human breast cancer (MCF-7) (compounds 2, 4, and 5), and human lung cancer cells (NCI-H187) (compounds 1-4 and 6). These results suggest that secondary metabolites from A. aculeatus KKU-CT2 might be interesting for further derivatization, targeting diseases such as cancer.
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Affiliation(s)
- Natanong Yodsing
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.,Graduate School, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Ratsami Lekphrom
- Natural Products Research Unit, Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Watchara Sangsopha
- Natural Products Research Unit, Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Tadanori Aimi
- Faculty of Agriculture, Tottori University, 4-101 Koyama-cho Minami, Tottori, 680-8553, Japan
| | - Sophon Boonlue
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.
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Wei J, Cheng Y, Guo WH, Wang DC, Zhang Q, Li D, Rong J, Gao JM. Molecular Diversity and Potential Anti-neuroinflammatory Activities of Cyathane Diterpenoids from the Basidiomycete Cyathus africanus. Sci Rep 2017; 7:8883. [PMID: 28827545 PMCID: PMC5567052 DOI: 10.1038/s41598-017-09118-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 07/19/2017] [Indexed: 11/12/2022] Open
Abstract
Ten new polyoxygenated cyathane diterpenoids, named neocyathins A–J (1–10), together with four known diterpenes (11–14), were isolated from the liquid culture of the medicinal basidiomycete fungus Cyathus africanus. The structures and configurations of these new compounds were elucidated through comprehensive spectroscopic analyses including 1D NMR, 2D NMR (HSQC, HMBC, NOESY) and HRESIMS, and electronic circular dichroism (ECD) data. Neuroinflammation is implicated in the pathogenesis of various neurodegenerative diseases, such as Alzheimers’ disease (AD). All isolated compounds were evaluated for the potential anti-neuroinflammatory activities in BV2 microglia cells. Several compounds showed differential effects on the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in lipopolysaccharide (LPS)-stimulated and Aβ1–42-treated mouse microglia cell line BV-2. Molecular docking revealed that bioactive compounds (e.g., 11) could interact with iNOS protein other than COX-2 protein. Collectively, our results suggested that this class of cyathane diterpenoids might serve as important lead compounds for drug discovery against neuroinflammation in AD.
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Affiliation(s)
- Jing Wei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Yuanyuan Cheng
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong, People's Republic of China
| | - Wan-Hui Guo
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Da-Cheng Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Ding Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Jianhui Rong
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong, People's Republic of China.
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China.
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Does Osmotic Stress Affect Natural Product Expression in Fungi? Mar Drugs 2017; 15:md15080254. [PMID: 28805714 PMCID: PMC5577608 DOI: 10.3390/md15080254] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 07/27/2017] [Accepted: 08/08/2017] [Indexed: 11/16/2022] Open
Abstract
The discovery of new natural products from fungi isolated from the marine environment has increased dramatically over the last few decades, leading to the identification of over 1000 new metabolites. However, most of the reported marine-derived species appear to be terrestrial in origin yet at the same time, facultatively halo- or osmotolerant. An unanswered question regarding the apparent chemical productivity of marine-derived fungi is whether the common practice of fermenting strains in seawater contributes to enhanced secondary metabolism? To answer this question, a terrestrial isolate of Aspergillus aculeatus was fermented in osmotic and saline stress conditions in parallel across multiple sites. The ex-type strain of A. aculeatus was obtained from three different culture collections. Site-to-site variations in metabolite expression were observed, suggesting that subculturing of the same strain and subtle variations in experimental protocols can have pronounced effects upon metabolite expression. Replicated experiments at individual sites indicated that secondary metabolite production was divergent between osmotic and saline treatments. Titers of some metabolites increased or decreased in response to increasing osmolite (salt or glycerol) concentrations. Furthermore, in some cases, the expression of some secondary metabolites in relation to osmotic and saline stress was attributed to specific sources of the ex-type strains.
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de Benito A, Ibáñez C, Moncho W, Martínez D, Vettorazzi A, de Cerain AL. Database on the taxonomical characterisation and potential toxigenic capacities of microorganisms used for the industrial production of food enzymes and feed additives, which do not have a recommendation for Qualified Presumption of Safety. EFSA SUPPORTING PUBLICATIONS 2017. [PMCID: PMC7163622 DOI: 10.2903/sp.efsa.2017.en-1274] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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16
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Wei J, Liu LL, Dong S, Li H, Tang D, Zhang Q, Xue QH, Gao JM. Gabosines P and Q, new carbasugars from Streptomyces sp. and their α-glucosidase inhibitory activity. Bioorg Med Chem Lett 2016; 26:4903-4906. [PMID: 27641469 DOI: 10.1016/j.bmcl.2016.09.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 08/20/2016] [Accepted: 09/07/2016] [Indexed: 11/25/2022]
Abstract
Two new polyoxygenated cyclohexenone 'ketocarbasugars', named gabosines P and Q (1 and 2), were isolated from the culture of the actinomycete Streptomycetes strain no. 8, along with two known cyclic dipeptides. The structures and absolute configurations of the new metabolites were determined by spectroscopic data (1D- and 2D-NMR, HR-ESI-MS, and IR), chemical transformation, and electronic circular dichroism (ECD). These compounds were evaluated for α-glucosidase inhibitory activity in vitro. Only compound 1 exhibited IC50 values of 9.07μM, with potency higher than that of the control acarbose. Molecular docking studies revealed the existence of hydrogen bonding and hydrophobic interaction between the enzyme and gabosine P. The results will be useful in designing new anti-diabetes control agents.
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Affiliation(s)
- Jing Wei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Ling-Li Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Shuai Dong
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Hui Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Dan Tang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Quan-Hong Xue
- College of Resource and Environment, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China.
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17
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Gorunova ON, Novitskiy IM, Grishin YK, Gloriozov IP, Roznyatovsky VA, Khrustalev VN, Kochetkov KA, Dunina VV. Determination of the Absolute Configuration of CN-Palladacycles by 31P{1H} NMR Spectroscopy Using (1R,2S,5R)-Menthyloxydiphenylphosphine as the Chiral Derivatizing Agent: Efficient Chirality Transfer in Phosphinite Adducts. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00706] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Olga N. Gorunova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova Street 28, 119991 Moscow, Russian Federation
| | - Ivan M. Novitskiy
- Department
of Chemistry, M.V. Lomonosov Moscow State University, Lenin Hills, 119991, Moscow, Russian Federation
| | - Yuri K. Grishin
- Department
of Chemistry, M.V. Lomonosov Moscow State University, Lenin Hills, 119991, Moscow, Russian Federation
| | - Igor P. Gloriozov
- Department
of Chemistry, M.V. Lomonosov Moscow State University, Lenin Hills, 119991, Moscow, Russian Federation
| | - Vitaly A. Roznyatovsky
- Department
of Chemistry, M.V. Lomonosov Moscow State University, Lenin Hills, 119991, Moscow, Russian Federation
| | - Victor N. Khrustalev
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova Street 28, 119991 Moscow, Russian Federation
- Inorganic Chemistry Department, Peoples’ Friendship University of Russia, Miklukho-Maklay Street 6, 117198 Moscow, Russian Federation
| | - Konstantin A. Kochetkov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova Street 28, 119991 Moscow, Russian Federation
| | - Valery V. Dunina
- Department
of Chemistry, M.V. Lomonosov Moscow State University, Lenin Hills, 119991, Moscow, Russian Federation
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