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Moussa AY. The limitless endophytes: their role as antifungal agents against top priority pathogens. Microb Cell Fact 2024; 23:161. [PMID: 38822407 PMCID: PMC11140875 DOI: 10.1186/s12934-024-02411-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 04/29/2024] [Indexed: 06/03/2024] Open
Abstract
Multi resistant fungi are on the rise, and our arsenal compounds are limited to few choices in the market such as polyenes, pyrimidine analogs, azoles, allylamines, and echinocandins. Although each of these drugs featured a unique mechanism, antifungal resistant strains did emerge and continued to arise against them worldwide. Moreover, the genetic variation between fungi and their host humans is small, which leads to significant challenges in new antifungal drug discovery. Endophytes are still an underexplored source of bioactive secondary metabolites. Many studies were conducted to isolate and screen endophytic pure compounds with efficacy against resistant yeasts and fungi; especially, Candida albicans, C. auris, Cryptococcus neoformans and Aspergillus fumigatus, which encouraged writing this review to critically analyze the chemical nature, potency, and fungal source of the isolated endophytic compounds as well as their novelty features and SAR when possible. Herein, we report a comprehensive list of around 320 assayed antifungal compounds against Candida albicans, C. auris, Cryptococcus neoformans and Aspergillus fumigatus in the period 1980-2024, the majority of which were isolated from fungi of orders Eurotiales and Hypocreales associated with terrestrial plants, probably due to the ease of laboratory cultivation of these strains. 46% of the reviewed compounds were active against C. albicans, 23% against C. neoformans, 29% against A. fumigatus and only 2% against C. auris. Coculturing was proved to be an effective technique to induce cryptic metabolites absent in other axenic cultures or host extract cultures, with Irperide as the most promising compounds MIC value 1 μg/mL. C. auris was susceptible to only persephacin and rubiginosin C. The latter showed potent inhibition against this recalcitrant strain in a non-fungicide way, which unveils the potential of fungal biofilm inhibition. Further development of culturing techniques and activation of silent metabolic pathways would be favorable to inspire the search for novel bioactive antifungals.
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Affiliation(s)
- Ashaimaa Y Moussa
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, African Union Organization Street, Abbassia, Cairo, 11566, Egypt.
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Zhang LH, Gao WK, Li SW, Song XY, Wu HH, Wang HF, Chen G, Wang SX, Pei YH. Santalane-type sesquiterpenoids and isobenzofuranones from cultures of Paraconiothyrium sporulosum YK-03. PHYTOCHEMISTRY 2023; 211:113691. [PMID: 37100221 DOI: 10.1016/j.phytochem.2023.113691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/14/2023]
Abstract
Three undescribed santalane-type sesquiterpenoids (parasantalenoic acids A-C) and two undescribed epimeric isobenzofuranones (paraphthalides A and B) were isolated from cultures of the marine mud-associated fungus Paraconiothyrium sporulosum YK-03. Their structures were elucidated by analysis of the extensive spectroscopic and crystal X-ray diffraction data, combined with ECD calculations and comparison. Santalane-type sesquiterpenoids have been firstly found in the Paraconiothyrium species. Parasantalenoic acids A-C represent three rare polyhydroxylated santalane-type sesquiterpenoid carboxylic acids, and parasantalenoic acid A represents the first example of 2-chlorinated santalane-type sesquiterpenoid. A plausible biosynthetic pathway for parasantalenoic acids A-C was proposed. Additionally, the anti-neuroinflammatory activities of parasantalenoic acids A-C were investigated by evaluating their inhibitory effects on nitric oxide (NO) production in lipopolysaccharide (LPS)-stimulated BV-2 microglia cells. Among them, parasantalenoic acid C showed significant anti-neuroinflammatory activity with an inhibition of 86.45 ± 2.45% at 10 μM.
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Affiliation(s)
- Li-Hua Zhang
- State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Wen-Ke Gao
- State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Shi-Wei Li
- State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Xiao-Yan Song
- State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Hong-Hua Wu
- State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Hai-Feng Wang
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Gang Chen
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Shao-Xia Wang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Yue-Hu Pei
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, 150081, People's Republic of China.
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Le HTT, Nguyen LH, Nguyen TH, Nguyen VK, Danova A, Truong TN, Chavasiri W. Gagones A-F: Six prenylated chalcones from the heartwood of Mansonia gagei. PHYTOCHEMISTRY 2023; 206:113516. [PMID: 36395879 DOI: 10.1016/j.phytochem.2022.113516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/09/2022] [Accepted: 11/13/2022] [Indexed: 06/16/2023]
Abstract
Six undescribed prenylated chalcones gagones A-F were isolated from the acetone fraction of Mansonia gagei heartwood. Their structures were unambiguously established based on spectroscopic analysis (HRESIMS, 1D and 2D NMR), as well as comparison to literature data. Their absolute configurations were elucidated using DP4 and electronic circular dichroism calculations. Isolated compounds were evaluated for their inhibitory activity against α-glucosidase and DPPH assay. All of the tested compounds exhibited better activity than that of acarbose (IC50 93.6 ± 0.5 μM). Among them, gagone D exhibited the highest α-glucosidase inhibitory with the IC50 value of 3.6 ± 0.4 μM. For antioxidant activity, gagones A-C, and E showed more active than that of ascorbic acid (IC50 30.2 ± 0.5 μM) with the IC50 values of 13.2 ± 0.7, 20.1 ± 0.4, 19.3 ± 0.5 and 12.8 ± 0.2 μM, respectively.
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Affiliation(s)
- Huong Thi Thu Le
- Department of Chemistry, Ho Chi Minh City University of Education, 280 An Duong Vuong Street, District 5, Ho Chi Minh City, 700000, Viet Nam.
| | - Lam H Nguyen
- Institute for Computational Science and Technology, Ho Chi Minh City, 700000, Viet Nam
| | - Tuan H Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, 700000, Viet Nam
| | - Van-Kieu Nguyen
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Viet Nam; Faculty of Natural Sciences, Duy Tan University, Da Nang, 550000, Viet Nam
| | - Ade Danova
- Organic Chemistry Division, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, JI. Ganesha 10, Bandung, West Java, 40132, Indonesia
| | - Thanh N Truong
- Department of Chemistry, University of Utah, Salt Lake City, UT, 84112, USA
| | - Warinthorn Chavasiri
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
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Huang LJ, Li XA, Jin MY, Guo WX, Lei LR, Liu R, Zhang MZ, Guo DL, Wang D, Zhou Y, Deng Y, Zhang JG. Two previously undescribed phthalides from Talaromyces amestolkiae, a symbiotic fungus of Syngnathus acus. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2023; 25:147-155. [PMID: 35582859 DOI: 10.1080/10286020.2022.2075738] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 05/05/2022] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
Amestolkins A (1) and B (2), two previously undescribed phthalides sharing the same planar structure of (1, 5-dihydroxyhexyl)-7-hydroxyisobenzofuran-1(3H)-one were isolated from Talaromyces amestolkiae. Their absolute configurations were elucidated by comprehensive analyses of spectroscopic evidences in high-resolution electrospray mass spectra (HRESIMS) and nuclear magnetic resonance (NMR) combined with electronic circular dichroism (ECD) and NMR calculations. 1 and 2 showed anti-neuroinflammatory activity by inhibiting the gene expressions of proinflammatory factors including C-C motif chemokine ligand 2 (CCL-2), tumor necrosis factor-α (TNF-α) and interleukin 6 (IL-6), as well as attenuating the excretion of inducible nitric oxide synthase (iNOS) in BV-2 microglial cells at the concentration of 30 μM.
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Affiliation(s)
- Li-Jun Huang
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xin-Ai Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Meng-Ying Jin
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Wen-Xiu Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Li-Rong Lei
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ran Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ming-Zhi Zhang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Da-Le Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Dong Wang
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yan Zhou
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People's Republic of China
| | - Yun Deng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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Antioxidant, Cytotoxic, and DNA Damage Protection Activities of Endophytic Fungus Pestalotiopsis neglecta Isolated from Ziziphus spina-christi Medicinal Plant. Microorganisms 2023; 11:microorganisms11010117. [PMID: 36677409 PMCID: PMC9862592 DOI: 10.3390/microorganisms11010117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/14/2022] [Accepted: 12/22/2022] [Indexed: 01/04/2023] Open
Abstract
Fungal endophytes are friendly microorganisms that colonize plants and are important in the interactions between plants and their environment. They generate valuable secondary metabolites that are valuable to both plants and humans. Endophytic fungi with bioactivities were isolated from the leaves of the medicinal plant Ziziphus spina-christi. An efficient isolate was selected and identified as Pestalotiopsis neglecta based on nucleotide sequencing of the internal transcribed spacer region (ITS 1-5.8S-ITS 2) of the 18S rRNA gene (NCBI accession number OP529850); the 564 bp had 99 to 100% similarity with P. neglecta MH860161.1, AY682935.1, KP689121.1, and MG572407.1, according to the BLASTn analysis, following preliminary phytochemical and antifungal screening. The biological activities of this fungus' crude ethyl acetate (EtOAc) extract were assessed. With an efficient radical scavenging activity against 2,2'-diphenyl-1-picrylhydrazyl and an IC50 value of 36.6 µg mL-1, P. neglecta extract has shown its potential as an antioxidant. Moreover, it displayed notable cytotoxic effects against MCF-7 (breast carcinoma, IC50 = 22.4 µg mL-1), HeLa (cervical carcinoma, IC50 = 28.9 µg mL-1) and HepG-2 (liver carcinoma, IC50 = 28.9 µg mL-1). At 10 µg mL-1, EtOAc demonstrated significant DNA protection against hydroxyl radical-induced damage. Based on FT-IR and GC-MS spectral analysis, it was detected that the EtOAc of P. neglecta product contains multiple bioactive functional groups. Subsequently, this validated the features of major different potent compounds; tolycaine, 1H-pyrazol, 1,3,5-trimethyl-, eugenol, 2,5-cyclohexadiene-1,4-dione, 2,6-bis(1,1-dimethyl), and bis(2-ethylhexyl) phthalate. Since these compounds are biologically relevant in various aspects, and distinct biological activities of fungal extract were acceptable in vitro, this suggests that endophytic fungus P. neglecta may be a viable source of bioactive natural products. This could be a good starting point for pharmaceutical applications.
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Pestalotiopsis Diversity: Species, Dispositions, Secondary Metabolites, and Bioactivities. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27228088. [PMID: 36432188 PMCID: PMC9695833 DOI: 10.3390/molecules27228088] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/23/2022] [Accepted: 10/29/2022] [Indexed: 11/23/2022]
Abstract
Pestalotiopsis species have gained attention thanks to their structurally complex and biologically active secondary metabolites. In past decades, several new secondary metabolites were isolated and identified. Their bioactivities were tested, including anticancer, antifungal, antibacterial, and nematicidal activity. Since the previous review published in 2014, new secondary metabolites were isolated and identified from Pestalotiopsis species and unidentified strains. This review gathered published articles from 2014 to 2021 and focused on 239 new secondary metabolites and their bioactivities. To date, 384 Pestalotiopsis species have been discovered in diverse ecological habitats, with the majority of them unstudied. Some may contain secondary metabolites with unique bioactivities that might benefit pharmacology.
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Yang SS, Chen YF, Ko HH, Wu HC, Hsieh SY, Wu MD, Cheng MJ, Chang HS. Undescribed alkyne-geranylcyclohexenetriols from the endophyte Diaporthe caulivora 09F0132 and their anti-melanogenic activity. PHYTOCHEMISTRY 2022; 202:113312. [PMID: 35830940 DOI: 10.1016/j.phytochem.2022.113312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 07/03/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
To explore valuable endophytic fungus from Formosan Lauraceous plants as natural medicinal products, the fungus, Diaporthe caulivora isolated from leaves of Neolitsea daibuensis, was investigated. Through a thorough investigation of the ethanolic extract of the solid fermentation of D. caulivora 09F0132, six undescribed alkyne-geranylcyclohexenetriols, caulivotrioloxins A-F, one undescribed trichopyrone, diapopyrone, two undescribed sesquiterpenes, caulibysins A-B, one compound firstly isolated from the natural source, 3-O-desmethyl phomentrioloxin, and eight known compounds have been successfully identified. The absolute configuration of caulibysin A was confirmed by single-crystal X-ray diffraction, and those of (3R,8S)-5,7-dihydroxy-3-(1-hydroxyethyl)phthalide and (3S,8S)-5,7-dihydroxy-3-(1-hydroxyethyl)phthalide were determined by circular dichroism (CD) spectra. Among the isolated compounds, caulivotrioloxin A concentration-dependently decreased the cellular melanin contents and tyrosinase activities in mouse melanoma B16-F10 cells, suggesting the anti-melanogenic potentials. The anti-melanogenic effects of caulivotrioloxin A involved the decrease in the protein expressions of melanogenic enzymes, including tyrosinase, tyrosinase-related protein (TRP)-1, and TRP-2. Taken together, these results suggested that the isolates from D. caulivora could be served as natural melanogenesis inhibitors for cosmeceutical applications.
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Affiliation(s)
- Shuen-Shin Yang
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Yih-Fung Chen
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan; Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Horng-Huey Ko
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan; Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Ho-Cheng Wu
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei, 110, Taiwan
| | - Sung-Yuan Hsieh
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, 300, Taiwan
| | - Ming-Der Wu
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, 300, Taiwan
| | - Ming-Jen Cheng
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, 300, Taiwan.
| | - Hsun-Shuo Chang
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan; Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
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Microbiological Aspects of Unique, Rare, and Unusual Fatty Acids Derived from Natural Amides and Their Pharmacological Profile. MICROBIOLOGY RESEARCH 2022. [DOI: 10.3390/microbiolres13030030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In the proposed review, the pharmacological profile of unique, rare, and unusual fatty acids derived from natural amides is considered. These amides are produced by various microorganisms, lichens, and fungi. The biological activity of some natural fatty acid amides has been determined by their isolation from natural sources, but the biological activity of fatty acids has not been practically studied. According to QSAR data, the biological activity of fatty acids is shown, which demonstrated strong antifungal, antibacterial, antiviral, antineoplastic, anti-inflammatory activities. Moreover, some fatty acids have shown rare activities such as antidiabetic, anti-infective, anti-eczematic, antimutagenic, and anti-psoriatic activities. For some fatty acids that have pronounced biological properties, 3D graphs are shown that show a graphical representation of unique activities. These data are undoubtedly of both theoretical and practical interest for chemists, pharmacologists, as well as for the pharmaceutical industry, which is engaged in the synthesis of biologically active drugs.
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Zheng Y, Yang QY, Wu LY, Zhu XY, Ge MJ, Yang H, Liu SY, Chen F. Oxoammonium Salt-Mediated Regioselective Vicinal Dioxidation of Alkenes: Relying on Transient and Persistent Nitroxides. Org Lett 2021; 23:8533-8538. [PMID: 34699225 DOI: 10.1021/acs.orglett.1c03196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A novel, easy-to-handle, and regioselective vicinal dioxidation of alkenes under transition metal and organic peroxide free conditions has been developed. This approach uses N-hydroxyphthalimide and its analogues as the transient nitroxyl-radical precursors and 2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate (TEMPO+BF4-) as the oxidant as well as the source of persistent nitroxide. By employing this method, multifarious structurally important dioxidation products were efficiently synthesized from simple alkenes and complex bioactive molecule derivatives.
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Affiliation(s)
- Yang Zheng
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Qing-Yun Yang
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Lu-Yan Wu
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Xin-Yue Zhu
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Ming-Jing Ge
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Hao Yang
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Shi-Yu Liu
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Fei Chen
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
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Xu K, Li XQ, Zhao DL, Zhang P. Antifungal Secondary Metabolites Produced by the Fungal Endophytes: Chemical Diversity and Potential Use in the Development of Biopesticides. Front Microbiol 2021; 12:689527. [PMID: 34234763 PMCID: PMC8255633 DOI: 10.3389/fmicb.2021.689527] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/10/2021] [Indexed: 11/13/2022] Open
Abstract
Plant diseases caused by phytopathogenic fungi can lead to huge losses in the agricultural fields and therefore remain a continuous threat to the global food security. Chemical-based fungicides contributed significantly in securing crop production. However, indiscriminate application of fungicides has led to increased chemical resistance and potential risks to human health and environment. Thus, there is an urgent need for searching for new bioactive natural products and developing them into new biopesticides. Fungal endophytes, microorganisms that reside in the fresh tissues of living plants, are regarded as untapped sources of novel natural products for exploitation in agriculture and/or medicine. Chemical examination of endophytic fungi has yielded enormous antifungal natural products with potential use in the development of biopesticides. This review summarizes a total of 132 antifungal metabolites isolated from fungal endophytes in the past two decades. The emphasis is on the unique chemical diversity of these metabolic products, together with their relevant antifungal properties. Moreover, some "star molecules," such as griseofulvin and trichothecene, as well as their synthetic derivatives that possess high potential as candidates of new natural fungicides, are also presented herein.
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Affiliation(s)
| | | | - Dong-Lin Zhao
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Peng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
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Tran CL, Tri MD, Tien-Trung N, Phan NM, Phan CTD, Tran TN, Do TH, Tran NMA, Tran TNM, Duong TH. Nervione, a new benzofuran derivative from Nervilia concolor. Nat Prod Res 2021; 36:5148-5154. [PMID: 33970720 DOI: 10.1080/14786419.2021.1920585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A new benzofuran derivative, nervione (1), was isolated from Nervilia concolor (Blume) Schltr. (Orchidaceae). Eight previously reported compounds were also isolated: 5,7-dimethoxyflavone (2), 3,5,7-trimethoxyflavone (3), 7-methoxyflavone (4), 3,7-dimethoxy-5-hydroxyflavone (5), tetramethylscutellarein (4',5,6,7-tetramethoxyflavone) (6), 5,7-dimethoxy-4'-hydroxyflavone (7), rhamnetin (8), and 5,7-dihydroxy-3',4'-dimethoxyflavone (9). The structures were elucidated by 1D, 2D NMR, and HRESIMS spectroscopy in addition to the literature. The relative configuration of 1 was defined using DP4+ probability while its absolute configuration was defined by comparison of the ECD spectrum of 1 with those of previously reported compounds. All isolated compounds were evaluated for alpha-glucosidase inhibition, revealing weak or no activity.
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Affiliation(s)
- Cong-Luan Tran
- Faculty of Pharmacy and Nursery, Tay Do University, Can Tho, Vietnam
| | - Mai Dinh Tri
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Ha noi, Vietnam.,Institute of Chemical Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Nguyen Tien-Trung
- Laboratory of Computational Chemistry and Modelling (LCCM), Quy Nhon University, Vietnam
| | - Nhat-Minh Phan
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Ha noi, Vietnam.,Institute of Chemical Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Cam-Tu D Phan
- Laboratory of Computational Chemistry and Modelling (LCCM), Quy Nhon University, Vietnam
| | - Thanh-Nha Tran
- Department of Chemistry, Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam
| | - Thanh-Hung Do
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Nguyen-Minh-An Tran
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Thi-Ngoc-Mai Tran
- Institute of Applied Sciences, Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City, Vietnam
| | - Thuc-Huy Duong
- Department of Chemistry, Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam
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Hu Z, Wu Z, Su Q, Li M, Wu S, Meng R, Ding W, Li C. Metabolites with phytopathogenic fungi inhibitory activities from the mangrove endophytic fungus Botryosphaeria ramose. Bioorg Chem 2020; 104:104300. [DOI: 10.1016/j.bioorg.2020.104300] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 09/02/2020] [Accepted: 09/04/2020] [Indexed: 11/26/2022]
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Yuan C, Shu XC, Fan L, Zhang YB, Guan LL, Yu FL, Chen XL, Li G. New paraconic acids from the endophytic fungus Xylariaceae sp. J4. Nat Prod Res 2020; 36:130-135. [PMID: 32441138 DOI: 10.1080/14786419.2020.1768088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Three new paraconic acids, xylariacinics A-C (1-3), were isolated from the endophyte Xylariaceae sp. J4 harbored in the medicinal plant Blumea balsamifera. Their structures were elucidated on the basis of extensive spectroscopic data including HRMS, and NMR. The antibacterial efficacies of compounds 1-3 were evaluated against a panel of bacteria such as Staphylococcus aureus, Bacillus subtilis, Escherichia coli and Pseudomonas aeruginosa. Their antifungal activities were also tested against Colletotrichum gloeosporioides. Unfortunately, all of them were inactive.
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Affiliation(s)
- Chao Yuan
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Engineering Research Center for Tropical Medicinal Plants, Danzhou, People's Republic of China
| | - Xue-Chun Shu
- College of Forestry, Hainan University, Haikou, People's Republic of China
| | - Lin Fan
- Department of Biology and Chemistry Engineering, Weihai Vocational College, Weihai, People's Republic of China
| | - Ying-Bo Zhang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Engineering Research Center for Tropical Medicinal Plants, Danzhou, People's Republic of China
| | - Ling-Liang Guan
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Engineering Research Center for Tropical Medicinal Plants, Danzhou, People's Republic of China
| | - Fu-Lai Yu
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Engineering Research Center for Tropical Medicinal Plants, Danzhou, People's Republic of China
| | - Xiao-Lu Chen
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Hainan Provincial Engineering Research Center for Tropical Medicinal Plants, Danzhou, People's Republic of China
| | - Gang Li
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, People's Republic of China
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14
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Wang J, Liang Z, Li K, Yang B, Liu Y, Fang W, Tang L, Zhou X. Ene-yne Hydroquinones from a Marine-derived Strain of the Fungus Pestalotiopsis neglecta with Effects on Liver X Receptor Alpha. JOURNAL OF NATURAL PRODUCTS 2020; 83:1258-1264. [PMID: 32283019 DOI: 10.1021/acs.jnatprod.0c00050] [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
Seven unusual new ene-yne hydroquinones (1-3, 5-8), including three rare glycosylated derivatives named pestalotioquinosides A-C (6-8), were obtained from the marine-derived strain SCSIO41403 of the fungus Pestalotiopsis neglecta. Their structures including absolute configurations were elucidated by spectroscopic analysis and induced electronic circular dichroism experiments. In silico molecular docking and in vitro surface plasmon resonance studies showed that pestalotioquinoside C (8) could act as a liver X receptor alpha (LXRα) modulator. Further study showed that LXR target gene ABCA1 was significantly upregulated by 8, which revealed 8 as a potential LXRα agonist.
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Affiliation(s)
- Jianjiao Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi Liang
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Kunlong Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bin Yang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Yonghong Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Wei Fang
- Hubei Biopesticide Engineering Research Center, Hubei Academy of Agricultural Science, Wuhan 430064, China
| | - Lan Tang
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xuefeng Zhou
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
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15
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New pestallic acids and diphenylketone derivatives from the marine alga-derived endophytic fungus Pestalotiopsis neglecta SCSIO41403. J Antibiot (Tokyo) 2020; 73:585-588. [PMID: 32286514 DOI: 10.1038/s41429-020-0308-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/14/2020] [Accepted: 04/01/2020] [Indexed: 11/08/2022]
Abstract
Three new carboxylic acid derivatives, pestallic acids F and G (1 and 2), pestalotiopyrone N (3), and a new diphenylketone derivative named neopestalone (5) were obtained from the liquid cultures of marine alga-derived endophytic fungus Pestalotiopsis neglecta SCSIO41403, along with six known compounds (4, 6-10). The structures of those new compounds were elucidated mainly by analysis of their NMR and MS data. The isolated compounds were evaluated for their anti-Dengue virus and COX-2 inhibitory activities, and two diphenylketone derivatives (5 and 6) exhibited obvious COX-2 inhibitory activities, with the IC50 values being 5.8 and 3.4 μM, respectively.
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16
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Nguyen HTT, Choi S, Kim S, Lee JH, Park AR, Yu NH, Yoon H, Bae CH, Yeo JH, Choi GJ, Son H, Kim JC. The Hsp90 Inhibitor, Monorden, Is a Promising Lead Compound for the Development of Novel Fungicides. FRONTIERS IN PLANT SCIENCE 2020; 11:371. [PMID: 32300352 PMCID: PMC7144829 DOI: 10.3389/fpls.2020.00371] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 03/16/2020] [Indexed: 06/11/2023]
Abstract
Endophytic fungi are great resources for the identification of useful natural products such as antimicrobial agents. In this study, we performed the antifungal screening of various plant endophytic fungi against the dollar spot pathogen Sclerotinia homoeocarpa and finally selected Humicola sp. JS-0112 as a potential biocontrol agent. The bioactive compound produced by the strain JS-0112 was identified as monorden known as an inhibitor of heat shock protein 90 (Hsp90). Monorden exhibited strong antagonistic activity against most tested plant pathogenic fungi particularly against tree pathogens and oomycetes with the minimum inhibitory concentration values less than 2.5 μg mL-1. Extensive in planta assays revealed that monorden effectively suppressed the development of several important plant diseases such as rice blast, rice sheath blight, wheat leaf rust, creeping bentgrass dollar spot, and cucumber damping-off. Especially, it showed much stronger disease control efficacy against cucumber damping-off than a synthetic fungicide chlorothalonil. Subsequent molecular genetic analysis of fission yeast and Fusarium graminearum suggested that Hsp90 is a major inhibitory target of monorden, and sequence variation among fungal Hsp90 is a determinant for the dissimilar monorden sensitivity of fungi. This is the first report dealing with the disease control efficacy and antifungal mechanism of monorden against fungal plant diseases and we believe that monorden can be used as a lead molecule for developing novel fungicides with new action mechanism for the control of plant diseases caused by fungi and oomycetes.
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Affiliation(s)
- Hang T. T. Nguyen
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Science, Chonnam National University, Gwangju, South Korea
| | - Soyoung Choi
- Department of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
| | - Soonok Kim
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, South Korea
| | - Ju-Hee Lee
- GPS Screen Team, Drug R&D Institute, Bioneer Corporation, Daejeon, South Korea
| | - Ae Ran Park
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Science, Chonnam National University, Gwangju, South Korea
| | - Nan Hee Yu
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Science, Chonnam National University, Gwangju, South Korea
| | - Hyeokjun Yoon
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, South Korea
| | - Chang-Hwan Bae
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, South Korea
| | - Joo Hong Yeo
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, South Korea
| | - Gyung Ja Choi
- Therapeutic & Biotechnology Division, Center for Eco-friendly New Materials, Korea Research Institute of Chemical Technology, Daejeon, South Korea
| | - Hokyoung Son
- Department of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
| | - Jin-Cheol Kim
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Science, Chonnam National University, Gwangju, South Korea
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17
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Méndez-Gálvez C, Böhme M, Leino R, Savela R. Synthesis of Isobenzofuranones by Cobalt Catalyzed [2+2+2] Cycloaddition. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000046] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Carolina Méndez-Gálvez
- Laboratory of Molecular Science and Technology; Åbo Akademi University; Biskopsgatan 8 20500 Åbo Finland
| | - Matthias Böhme
- Laboratory of Molecular Science and Technology; Åbo Akademi University; Biskopsgatan 8 20500 Åbo Finland
| | - Reko Leino
- Laboratory of Molecular Science and Technology; Åbo Akademi University; Biskopsgatan 8 20500 Åbo Finland
| | - Risto Savela
- Laboratory of Molecular Science and Technology; Åbo Akademi University; Biskopsgatan 8 20500 Åbo Finland
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18
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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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19
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Tran-Cong NM, Mándi A, Kurtán T, Müller WEG, Kalscheuer R, Lin W, Liu Z, Proksch P. Induction of cryptic metabolites of the endophytic fungus Trichocladium sp. through OSMAC and co-cultivation. RSC Adv 2019; 9:27279-27288. [PMID: 35529238 PMCID: PMC9070598 DOI: 10.1039/c9ra05469c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 08/20/2019] [Indexed: 01/17/2023] Open
Abstract
The endophytic fungus Trichocladium sp. isolated from roots of Houttuynia cordata was cultured on solid rice medium, yielding a new amidepsine derivative (1) and a new reduced spiro azaphilone derivative (3) together with eight known compounds (4–11). Co-cultivation of Trichocladium sp. with Bacillus subtilis resulted in induction of a further new compound (2) and a 10-fold increase of 11 compared to the axenic fungal culture. Moreover, when the fungus was cultivated on peas instead of rice, a new sesquiterpene derivative (13) and two known compounds (12 and 14) were obtained. Addition of 2% tryptophan to rice medium led to the isolation of a new bismacrolactone (15). The structures of the new compounds were elucidated by HRESIMS, 1D and 2D NMR as well as by comparison with the literature. A combination of TDDFT-ECD, TDDFT-SOR, DFT-VCD and DFT-NMR calculations were applied to determine the absolute and relative configurations of 13 and 15. Compounds 7, 11 and 15 exhibited strong cytotoxicity against the L5178Y mouse lymphoma cell line with IC50 values of 0.3, 0.5 and 0.2 μM, respectively. The endophytic fungus Trichocladium sp. isolated from roots of Houttuynia cordata yielded fifteen compounds including five new ones through OSMAC and co-cultivation approaches. ![]()
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Affiliation(s)
- Nam Michael Tran-Cong
- Institute of Pharmaceutical Biology and Biotechnology
- Heinrich Heine University Düsseldorf
- 40225 Düsseldorf
- Germany
| | - Attila Mándi
- Department of Organic Chemistry
- University of Debrecen
- H-4002 Debrecen
- Hungary
| | - Tibor Kurtán
- Department of Organic Chemistry
- University of Debrecen
- H-4002 Debrecen
- Hungary
| | - Werner E. G. Müller
- Institute of Physiological Chemistry
- Universitätsmedizin der Johannes Gutenberg-Universität Mainz
- 55128 Mainz
- Germany
| | - Rainer Kalscheuer
- Institute of Pharmaceutical Biology and Biotechnology
- Heinrich Heine University Düsseldorf
- 40225 Düsseldorf
- Germany
| | - Wenhan Lin
- State Key Laboratory of Natural and Biomimetic Drugs
- Peking University
- Beijing 100191
- China
| | - Zhen Liu
- Institute of Pharmaceutical Biology and Biotechnology
- Heinrich Heine University Düsseldorf
- 40225 Düsseldorf
- Germany
| | - Peter Proksch
- Institute of Pharmaceutical Biology and Biotechnology
- Heinrich Heine University Düsseldorf
- 40225 Düsseldorf
- Germany
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20
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Xiang K, Tong P, Yan B, Long L, Zhao C, Zhang Y, Li Y. Synthesis of Benzannulated [6,6]-Spiroketals by a One-Pot Carbonylative Sonogashira Coupling/Double Annulation Reaction. Org Lett 2018; 21:412-416. [DOI: 10.1021/acs.orglett.8b03586] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kuirong Xiang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Pei Tong
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Baorun Yan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Lingling Long
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Chunbo Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yuan Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ying Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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21
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Alade GO, Moody JO, Bakare A, Awotona OR, Adesanya S, Lai D, Debbab A, Proksch P. Metabolites from endophytic fungus; Pestalotiopsis clavispora isolated from Phoenix reclinata leaf. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2018. [DOI: 10.1016/j.fjps.2018.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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22
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Zhang D, Zhao J, Wang X, Zhao L, Liu H, Wei Y, You X, Cen S, Yu L. Peniazaphilin A, a new azaphilone derivative produced by Penicillium sp. CPCC 400786. J Antibiot (Tokyo) 2018; 71:905-907. [DOI: 10.1038/s41429-018-0077-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 03/14/2018] [Accepted: 06/11/2018] [Indexed: 11/09/2022]
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23
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Zhang Q, Luan R, Li H, Liu Y, Liu P, Wang L, Li D, Wang M, Zou Q, Liu H, Matsuzaki K, Zhao F. Anti-inflammatory action of ambuic acid, a natural product isolated from the solid culture of Pestalotiopsis neglecta, through blocking ERK/JNK mitogen-activated protein kinase signaling pathway. Exp Ther Med 2018; 16:1538-1546. [PMID: 30116402 DOI: 10.3892/etm.2018.6294] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 04/24/2018] [Indexed: 02/03/2023] Open
Abstract
Ambuic acid is an organic acid isolated from the solid culture of Pestalotiopsis neglecta, which is an endophytic fungus that widely exists in many species of plants. Ambuic acid has been reported to exert antimicrobial activity against Gram-positive bacterium. The aim of the present study was to investigate the inhibitory effect of ambuic acid on lipopolysaccharide (LPS)-induced inflammation in RAW264.7 macrophages. The results demonstrated that ambuic acid significantly suppressed the overproduction of nitric oxide (NO) and prostaglandin E2 (PGE2) in a dose-dependent manner. Furthermore, ambuic acid also inhibited the release of the proinflammatory cytokine interleukin-6 (IL-6) however, no inhibition of the release of tumor necrosis factor-α (TNF-α) was observed. Further investigations indicated that ambuic acid downregulated the LPS-induced high expression of inducible NO synthase (iNOS) and cyclooxygenase-2 (COX-2) proteins, as well as inhibited the enzymatic activity of iNOS and COX-2. In addition, ambuic acid suppressed the phosphorylation of extracellular signal-regulated kinase 1/2 (ERK 1/2) and c-Jun N-terminal kinase (JNK) induced by LPS. However, ambuic acid did not inhibit the phosphorylation of p38 mitogen-activated protein kinase (MAPK), the degradation of IκB-α protein or the nuclear translocation of nuclear transcription factor-κB (NF-κB) p65 subunit. These results suggested that ambuic acid may exert anti-inflammatory action by blocking the activation of the ERK/JNK MAPK signaling pathway, without the involvement of the p38 MAPK or NF-κB signaling pathways.
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Affiliation(s)
- Qian Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, Shandong 264003, P.R. China
| | - Ruiling Luan
- Pharmacy Dispensing Center, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Huixiang Li
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, Shandong 264003, P.R. China
| | - Yanan Liu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, Shandong 264003, P.R. China
| | - Pan Liu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, Shandong 264003, P.R. China
| | - Liying Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, Shandong 264003, P.R. China
| | - Danna Li
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, Shandong 264003, P.R. China
| | - Mengdi Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, Shandong 264003, P.R. China
| | - Qiang Zou
- Yantai Branch of Shandong Technology Transfer Center, Chinese Academy of Sciences, Yantai, Shandong 264003, P.R. China
| | - Hongwei Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P.R. China
| | - Keiichi Matsuzaki
- School of Pharmacy, Nihon University, Funabashi, Chiba 274-8555, Japan
| | - Feng Zhao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, Shandong 264003, P.R. China
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24
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Phylogenetic analysis and antifouling potentials of culturable fungi in mangrove sediments from Techeng Isle, China. World J Microbiol Biotechnol 2018; 34:90. [DOI: 10.1007/s11274-018-2470-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 06/03/2018] [Indexed: 11/26/2022]
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25
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Pestalustaines A and B, unprecedented sesquiterpene and coumarin derivatives from endophytic fungus Pestalotiopsis adusta. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.078] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Akhberdi O, Zhang Q, Wang D, Wang H, Hao X, Liu Y, Wei D, Zhu X. Distinct Roles of Velvet Complex in the Development, Stress Tolerance, and Secondary Metabolism in Pestalotiopsis microspora, a Taxol Producer. Genes (Basel) 2018. [PMID: 29538316 DOI: 10.3390/genes9030164] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The velvet family proteins have been shown to play critical roles in fungal secondary metabolism and development. However, variations of the roles have been observed in different fungi. We report here the observation on the role of three velvet complex components VeA, VelB, and LaeA in Pestalotiopsis microspora, a formerly reported taxol-producing fungus. Deletion of individual members led to the retardation of vegetative growth and sporulation and pigmentation, suggesting critical roles in these processes. The mutant strain △velB appeared hypersensitive to osmotic stress and the dye Congo red, whereas △veA and △laeA were little affected by the pressures, suggesting only velB was required for the integrity of the cell wall. Importantly, we found that the genes played distinct roles in the biosynthesis of secondary metabolites in P. microspora. For instance, the production of pestalotiollide B, a previously characterized polyketide, required velB and laeA. In contrast, the veA gene appeared to inhibit the pestalotiollide B (PB) role in its biosynthesis. This study suggests that the three components of the velvet complex are important global regulators, but with distinct roles in hyphal growth, asexual production, and secondary metabolism in P. microspora. This work provides information for further understanding the biosynthesis of secondary metabolism in the fungus.
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Affiliation(s)
- Oren Akhberdi
- State Key Program of Microbiology and Department of Microbiology, College of Life Sciences, Nankai University, Tianjin 300071, China.
| | - Qian Zhang
- State Key Program of Microbiology and Department of Microbiology, College of Life Sciences, Nankai University, Tianjin 300071, China.
| | - Dan Wang
- State Key Program of Microbiology and Department of Microbiology, College of Life Sciences, Nankai University, Tianjin 300071, China.
| | - Haichuan Wang
- State Key Program of Microbiology and Department of Microbiology, College of Life Sciences, Nankai University, Tianjin 300071, China.
| | - Xiaoran Hao
- Beijing Key Laboratory of Genetic Engineering Drug and Biotechnology, Institute of Biochemistry and Biotechnology, College of Life Sciences, Beijing Normal University, Beijing 100875, China.
| | - Yanjie Liu
- Beijing Key Laboratory of Genetic Engineering Drug and Biotechnology, Institute of Biochemistry and Biotechnology, College of Life Sciences, Beijing Normal University, Beijing 100875, China.
| | - Dongsheng Wei
- State Key Program of Microbiology and Department of Microbiology, College of Life Sciences, Nankai University, Tianjin 300071, China.
| | - Xudong Zhu
- Beijing Key Laboratory of Genetic Engineering Drug and Biotechnology, Institute of Biochemistry and Biotechnology, College of Life Sciences, Beijing Normal University, Beijing 100875, China.
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27
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Yu J, Wu Y, He Z, Li M, Zhu K, Gao B. Diversity and Antifungal Activity of Endophytic Fungi Associated with Camellia oleifera. MYCOBIOLOGY 2018; 46:85-91. [PMID: 29963309 PMCID: PMC6023251 DOI: 10.1080/12298093.2018.1454008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/26/2017] [Accepted: 01/02/2018] [Indexed: 05/20/2023]
Abstract
Endophytic fungi strains (n = 81) were isolated from the leaves, barks, and fruits of Camellia oleifera from Hunan province (China) to delineate their species composition and potential as biological control agents of C. oleifera anthracnose. The fungi were identified by morphological and phylogenetic analyses. Fungal colonization rates of the leaves, barks, and fruits were 58.02, 27.16, and 14.81%, respectively. The isolates were identified as 14 genera, belonging to two subdivisions, Deuteromycotina and Ascomycotina; 87.65% of all isolates belonged to Deuteromycotina. The dominant species, occurring with a high relative frequency, were Pestalotiopsis sp. (14.81%), Penicillium sp. (14.81%), and Fusarium sp. (12.35%). The Simpson's and Shannon's diversity indices revealed the highest species diversity in the leaves, followed by the barks and fruits. The similarity index for the leaves versus barks comparison was the highest, indicating that the number of endophytic fungal species shared by the leaves and barks was higher than barks and fruits or leaves and fruits. Based on the results of dual culture experiments, only five strains exhibited antifungal activity against C. oleifera anthracnose pathogen, with isolate ty-64 (Oidium sp.) generating the broadest inhibition zones. Our results indicate that the endophytes associated with C. oleifera could be employed as natural agents controlling C. oleifera anthracnose.
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Affiliation(s)
- Jinxiu Yu
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, Hunan, China
- Hunan Academy of Forestry, Changsha, Hunan, China
- Camellia oleifera Research and Development Center of State Forestry Administration, Changsha, Hunan, China
| | - Ying Wu
- Hunan Academy of Forestry, Changsha, Hunan, China
- Camellia oleifera Research and Development Center of State Forestry Administration, Changsha, Hunan, China
| | - Zhen He
- Hunan Academy of Forestry, Changsha, Hunan, China
- Camellia oleifera Research and Development Center of State Forestry Administration, Changsha, Hunan, China
| | - Mi Li
- Hunan Academy of Forestry, Changsha, Hunan, China
- Camellia oleifera Research and Development Center of State Forestry Administration, Changsha, Hunan, China
| | - Kaiming Zhu
- Hunan Academy of Forestry, Changsha, Hunan, China
- Camellia oleifera Research and Development Center of State Forestry Administration, Changsha, Hunan, China
| | - Bida Gao
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, Hunan, China
- CONTACT Bida Gao
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28
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Wang Z, Fan P, Xue TD, Meng LL, Gao WB, Zhang J, Zhao YX, Luo DQ. Two New Isocoumarin Derivatives from an Endophytic Fungi Pestalotiopsis coffeae Isolated from a Mangrove Fishtail Palm. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Two new isocoumarin derivatives, 6,8-dihydroxy-7-methyl-1-oxo-1H-isochromene-3-carboxylic acid (1) and 6,8-dihydroxy-3-methoxy-3,7- dimethyl-isochroman-1-one (2), together with five known compounds (3-7), were isolated from the endophytic fungus Pestalotiopsis coffeae derived from the Chinese plant fishtail palm. The structures of these compounds were determined mainly by analysis of their NMR spectroscopic data. The structure of compound 2 was further confirmed by X-ray diffraction.
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Affiliation(s)
- Zhong Wang
- College of Life Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China
| | - Peng Fan
- College of Life Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China
| | - Tong-Dan Xue
- College of Life Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China
| | - Lin-Lin Meng
- College of Life Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China
| | - Wen-Bin Gao
- College of Life Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China
| | - Jun Zhang
- College of Life Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China
| | - You-xing Zhao
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Du-Qiang Luo
- College of Life Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China
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29
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Isobenzofuranones and Isochromenones from the Deep-Sea Derived Fungus Leptosphaeria sp. SCSIO 41005. Mar Drugs 2017. [DOI: 10.3390/md15070204 pmid: 28661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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30
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Luo X, Lin X, Salendra L, Pang X, Dai Y, Yang B, Liu J, Wang J, Zhou X, Liu Y. Isobenzofuranones and Isochromenones from the Deep-Sea Derived Fungus Leptosphaeria sp. SCSIO 41005. Mar Drugs 2017; 15:md15070204. [PMID: 28661451 PMCID: PMC5532646 DOI: 10.3390/md15070204] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 06/26/2017] [Accepted: 06/27/2017] [Indexed: 12/16/2022] Open
Abstract
Four new isobenzofuranones, leptosphaerins J–M (1–4), including an unusual naturally-occurring centrosymmetric dimer skeleton (1), and two new isochromenones, clearanols I–J (9–10), were obtained from a culture of a deep-sea sediment-derived fungus Leptosphaeria sp. SCSIO 41005, together with four known isobenzofuranones (5–8) and six known isochromenones (11–16). These structures were elucidated by extensive spectroscopic analyses, and absolute configurations were assigned on the basis of electronic circular dichroism and optical rotations data comparison. Additionally, the absolute configurations of the new compounds 1 and 9, together with the known one 7 with stereochemistry undetermined, were further confirmed by single crystal X-ray diffraction experiments. A plausible biosynthetic pathway of these isobenzofuranones and isochromenones was also proposed.
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Affiliation(s)
- Xiaowei Luo
- Chinese Academy of Sciences (CAS) Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Xiuping Lin
- Chinese Academy of Sciences (CAS) Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China.
| | - Limbadri Salendra
- Chinese Academy of Sciences (CAS) Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Xiaoyan Pang
- Chinese Academy of Sciences (CAS) Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yu Dai
- Chinese Academy of Sciences (CAS) Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Bin Yang
- Chinese Academy of Sciences (CAS) Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China.
| | - Juan Liu
- Chinese Academy of Sciences (CAS) Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China.
| | - Junfeng Wang
- Chinese Academy of Sciences (CAS) Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China.
| | - Xuefeng Zhou
- Chinese Academy of Sciences (CAS) Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China.
| | - Yonghong Liu
- Chinese Academy of Sciences (CAS) Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China.
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Abstract
Covering: 2015. Previous review: Nat. Prod. Rep., 2016, 33, 382-431This review covers the literature published in 2015 for marine natural products (MNPs), with 1220 citations (792 for the period January to December 2015) 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 (1340 in 429 papers for 2015), 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.
| | - Brent R Copp
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Robert A Keyzers
- Centre for Biodiscovery, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Murray H G Munro
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
| | - Michèle R Prinsep
- Chemistry, School of Science, University of Waikato, Hamilton, New Zealand
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Xiao J, Lin L, Hu J, Jiao F, Duan D, Zhang Q, Tang H, Gao J, Wang L, Wang X. Highly oxygenated caryophyllene-type and drimane-type sesquiterpenes from Pestalotiopsis adusta, an endophytic fungus of Sinopodophyllum hexandrum. RSC Adv 2017. [DOI: 10.1039/c7ra04267a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Four new highly oxidized caryophyllene-type sesquiterpenes (1–4), and two new drimane-type sesquiterpenes (6, 7), along with nine known compounds have been isolated from an endophytic fungus Pestalotiopsis adusta.
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33
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Phthalides: Distribution in Nature, Chemical Reactivity, Synthesis, and Biological Activity. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 104 2017; 104:127-246. [DOI: 10.1007/978-3-319-45618-8_2] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Pérez Hemphill CF, Daletos G, Liu Z, Lin W, Proksch P. Polyketides from the Mangrove-derived fungal endophyte Pestalotiopsis clavispora. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.03.101] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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35
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Zhuravleva OI, Sobolevskaya MP, Denisenko VA, Kirichuk NN, Zhidkov ME, Ermakova SP, Kim NY, Antonov AS, Leshchenko EV, Afiyatullov SS. New 6,6-Spiroketal from the Alga-Derived Fungus Penicillium Lividum. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The new 6,6-spiroketal, sargassopenilline H (1), and known peneciraistin C (2) have been isolated from an EtOAc extract of the marine-derived fungus PenicilliumlividumKMM 4663. The structure of the new metabolite was determined by HR ESIMS and 1D and 2D NMR spectroscopy. Sargassopenilline H (1) in non-cytotoxic concentration inhibited colony formation of RPMI-7951 and MDA-MB-231 cell lines.
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Affiliation(s)
- Olesya I. Zhuravleva
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Science, Prospect 100-letiya Vladivostoka, 159, Vladivostok 690022, Russian Federation
- Far Eastern Federal University, Sukhanova Street, 8, Vladivostok, 690000, Russian Federation
| | - Maria P. Sobolevskaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Science, Prospect 100-letiya Vladivostoka, 159, Vladivostok 690022, Russian Federation
| | - Vladimir A. Denisenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Science, Prospect 100-letiya Vladivostoka, 159, Vladivostok 690022, Russian Federation
| | - Natalya N. Kirichuk
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Science, Prospect 100-letiya Vladivostoka, 159, Vladivostok 690022, Russian Federation
| | - Maxim E. Zhidkov
- Far Eastern Federal University, Sukhanova Street, 8, Vladivostok, 690000, Russian Federation
| | - Svetlana P. Ermakova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Science, Prospect 100-letiya Vladivostoka, 159, Vladivostok 690022, Russian Federation
| | - Natalya Yu. Kim
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Science, Prospect 100-letiya Vladivostoka, 159, Vladivostok 690022, Russian Federation
| | - Alekxandr S. Antonov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Science, Prospect 100-letiya Vladivostoka, 159, Vladivostok 690022, Russian Federation
| | - Elena V. Leshchenko
- Far Eastern Federal University, Sukhanova Street, 8, Vladivostok, 690000, Russian Federation
| | - Shamil Sh. Afiyatullov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Science, Prospect 100-letiya Vladivostoka, 159, Vladivostok 690022, Russian Federation
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36
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Shen T, Liu XB, Zhang W. Calocephalactone: A New Phthalide Derivative from the Root ofLeontopodium calocephalum. J CHIN CHEM SOC-TAIP 2016. [DOI: 10.1002/jccs.201500280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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37
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Affiliation(s)
- Yahui Gao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China
- University of Chinese Academy of Sciences, Shijingshan Rd, Shijingshan, Beijing 100049, P.R. China
| | - Fang Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China
| | - Lei Cai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China
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38
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Wang J, Bai G, Liu Y, Wang H, Li Y, Yin W, Wang Y, Lu F. Cytotoxic Metabolites Produced by the Endophytic Fungus Aspergillus clavatus. CHEM LETT 2015. [DOI: 10.1246/cl.150417] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jiaming Wang
- Key Laboratory of Industrial Fermentation Microbiology Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin International Joint Academy of Biomedicine
| | - Gang Bai
- Tianjin International Joint Academy of Biomedicine
| | - Yihan Liu
- Key Laboratory of Industrial Fermentation Microbiology Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin International Joint Academy of Biomedicine
| | - Hongbin Wang
- Key Laboratory of Industrial Fermentation Microbiology Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin International Joint Academy of Biomedicine
| | - Yu Li
- Key Laboratory of Industrial Fermentation Microbiology Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin International Joint Academy of Biomedicine
| | - Wanqiang Yin
- Key Laboratory of Industrial Fermentation Microbiology Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin International Joint Academy of Biomedicine
| | - Yonglu Wang
- School of Pharmaceutical Sciences, Nanjing University of Technology
| | - Fuping Lu
- Key Laboratory of Industrial Fermentation Microbiology Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin International Joint Academy of Biomedicine
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39
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Zhao S, Chen S, Wang B, Niu S, Wu W, Guo L, Che Y. Four new tetramic acid and one new furanone derivatives from the plant endophytic fungus Neopestalotiopsis sp. Fitoterapia 2015; 103:106-12. [DOI: 10.1016/j.fitote.2015.03.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 03/20/2015] [Accepted: 03/22/2015] [Indexed: 10/23/2022]
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Bioactive Metabolites from Mangrove Endophytic Fungus Aspergillus sp. 16-5B. Mar Drugs 2015; 13:3091-102. [PMID: 25996099 PMCID: PMC4446620 DOI: 10.3390/md13053091] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 04/27/2015] [Accepted: 04/27/2015] [Indexed: 12/24/2022] Open
Abstract
Chemical investigation of the endophytic fungus Aspergillus sp. 16-5B cultured on Czapek’s medium led to the isolation of four new metabolites, aspergifuranone (1), isocoumarin derivatives (±) 2 and (±) 3, and (R)-3-demethylpurpurester A (4), together with the known purpurester B (5) and pestaphthalides A (6). Their structures were determined by analysis of 1D and 2D NMR spectroscopic data. The absolute configuration of Compound 1 was determined by comparison of the experimental and calculated electronic circular dichroism (ECD) spectra, and that of Compound 4 was revealed by comparing its optical rotation data and CD with those of the literature. The structure of Compound 6 was further confirmed by single-crystal X-ray diffraction experiment using CuKα radiation. All isolated compounds were evaluated for their α-glucosidase inhibitory activities, and Compound 1 showed significant inhibitory activity with IC50 value of 9.05 ± 0.60 μM. Kinetic analysis showed that Compound 1 was a noncompetitive inhibitor of α-glucosidase. Compounds 2 and 6 exhibited moderate inhibitory activities.
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Arunpanichlert J, Rukachaisirikul V, Phongpaichit S, Supaphon O, Sakayaroj J. Xylariphilone: a new azaphilone derivative from the seagrass-derived fungus Xylariales sp. PSU-ES163. Nat Prod Res 2015; 30:46-51. [DOI: 10.1080/14786419.2015.1032282] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Jiraporn Arunpanichlert
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Souwalak Phongpaichit
- Natural Products Research Center of Excellence and Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Orathai Supaphon
- Natural Products Research Center of Excellence and Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Jariya Sakayaroj
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
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Tian T, Li L, Xue J, Zhang J, Li Y. Enantioselective Syntheses of Spiroketals via a Tandem Reaction of Cu(I)-Catalyzed Cycloetherification and Hydrogen-Bond-Induced [4 + 2] Cyclization. J Org Chem 2015; 80:4189-200. [DOI: 10.1021/acs.joc.5b00384] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tian Tian
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Liqi Li
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Jijun Xue
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Jie Zhang
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Ying Li
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
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43
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Zhuravleva OI, Sobolevskaya MP, Afiyatullov SS, Kirichuk NN, Denisenko VA, Dmitrenok PS, Yurchenko EA, Dyshlovoy SA. Sargassopenillines A-G, 6,6-spiroketals from the alga-derived fungi Penicillium thomii and Penicillium lividum. Mar Drugs 2014; 12:5930-43. [PMID: 25501795 PMCID: PMC4278210 DOI: 10.3390/md12125930] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 11/21/2014] [Accepted: 12/02/2014] [Indexed: 12/22/2022] Open
Abstract
Seven new 6,6-spiroketals, sargassopenillines A-G (1-7) were isolated from the alga-derived fungi Penicillium thomii KMM 4645 and Penicillium lividum KMM 4663. The structures of these metabolites were determined by HR-MS and 1D and 2D NMR. The absolute configurations of compounds 1, 5 and 6 were assigned by the modified Mosher's method and by CD data. Sargassopenilline C (3) inhibited the transcriptional activity of the oncogenic nuclear factor AP-1 with an IC50 value of 15 µM.
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Affiliation(s)
- Olesya I Zhuravleva
- Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Prospect 100-let Vladivostoku 159, Vladivostok 690022, Russia.
| | - Maria P Sobolevskaya
- Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Prospect 100-let Vladivostoku 159, Vladivostok 690022, Russia.
| | - Shamil Sh Afiyatullov
- Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Prospect 100-let Vladivostoku 159, Vladivostok 690022, Russia.
| | - Natalya N Kirichuk
- Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Prospect 100-let Vladivostoku 159, Vladivostok 690022, Russia.
| | - Vladimir A Denisenko
- Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Prospect 100-let Vladivostoku 159, Vladivostok 690022, Russia.
| | - Pavel S Dmitrenok
- Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Prospect 100-let Vladivostoku 159, Vladivostok 690022, Russia.
| | - Ekaterina A Yurchenko
- Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Prospect 100-let Vladivostoku 159, Vladivostok 690022, Russia.
| | - Sergey A Dyshlovoy
- Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Prospect 100-let Vladivostoku 159, Vladivostok 690022, Russia.
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44
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Spiroketals from Marine Isolates of the Fungi Penicillium thomii KMM 4645 and P. lividum KMM 4663. Chem Nat Compd 2014. [DOI: 10.1007/s10600-014-1179-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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45
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Chen L, Zhang QY, Jia M, Ming QL, Yue W, Rahman K, Qin LP, Han T. Endophytic fungi with antitumor activities: Their occurrence and anticancer compounds. Crit Rev Microbiol 2014; 42:454-73. [PMID: 25343583 DOI: 10.3109/1040841x.2014.959892] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Plant endophytic fungi have been recognized as an important and novel resource of natural bioactive products, especially in anticancer application. This review mainly deals with the research progress on the production of anticancer compounds by endophytic fungi between 1990 and 2013. Anticancer activity is generally associated with the cytotoxicity of the compounds present in the endophytic fungi. All strains of endophytes producing antitumor chemicals were classified taxonomically and the genera of Pestalotiopsis and Aspergillus as well as the taxol producing endophytes were focused on. Classification of endophytic fungi producing antitumor compounds has received more attention from mycologists, and it can also lead to the discovery of novel compounds with antitumor activity due to phylogenetic relationships. In this review, the structures of the anticancer compounds isolated from the newly reported endophytes between 2010 and 2013 are discussed including strategies for the efficient production of the desired compounds. The purpose of this review is to provide new directions in endophytic fungi research including integrated information relating to its anticancer compounds.
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Affiliation(s)
- Ling Chen
- a Department of Pharmacognosy , School of Pharmacy, Second Military Medical University , Shanghai , China
| | - Qiao-Yan Zhang
- a Department of Pharmacognosy , School of Pharmacy, Second Military Medical University , Shanghai , China
| | - Min Jia
- a Department of Pharmacognosy , School of Pharmacy, Second Military Medical University , Shanghai , China
| | - Qian-Liang Ming
- b Department of Pharmacognosy , School of Pharmacy, Third Military Medical University , Chongqing , China and
| | - Wei Yue
- a Department of Pharmacognosy , School of Pharmacy, Second Military Medical University , Shanghai , China
| | - Khalid Rahman
- c Faculty of Science , School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University , Liverpool , UK
| | - Lu-Ping Qin
- a Department of Pharmacognosy , School of Pharmacy, Second Military Medical University , Shanghai , China
| | - Ting Han
- a Department of Pharmacognosy , School of Pharmacy, Second Military Medical University , Shanghai , China
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Lan WJ, Liu W, Liang WL, Xu Z, Le X, Xu J, Lam CK, Yang DP, Li HJ, Wang LY. Pseudaboydins A and B: novel isobenzofuranone derivatives from marine fungus Pseudallescheria boydii associated with starfish Acanthaster planci. Mar Drugs 2014; 12:4188-99. [PMID: 25026266 PMCID: PMC4113822 DOI: 10.3390/md12074188] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 07/03/2014] [Accepted: 07/03/2014] [Indexed: 11/16/2022] Open
Abstract
Two novel isobenzofuranone derivatives, pseudaboydins A (1) and B (2), along with five known compounds, including (R)-2-(2-hydroxypropan-2-yl)-2,3-dihydro-5-hydroxybenzofuran (3), (R)-2-(2-hydroxypropan-2-yl)-2,3-dihydro-5-methoxybenzofuran (4), 3,3'-dihydroxy-5,5'-dimethyldiphenyl ether (5), 3-(3-methoxy-5-methylphenoxy)-5-methylphenol (6) and (-)-regiolone (7), were isolated from the culture broth of the marine fungus, Pseudallescheria boydii, associated with the starfish, Acanthaster planci. Their structures were elucidated primarily based on NMR and MS data. The absolute configurations of 1-4 were determined by CD spectroscopy and single-crystal X-ray diffraction studies. The cytotoxic and antibacterial activities of 1-4 were evaluated. Pseudaboydin A (1) showed moderate cytotoxic activity against human nasopharyngeal carcinoma cell line HONE1, human nasopharyngeal carcinoma cell line SUNE1 and human glandular lung cancer cell line GLC82 with IC50 values of 37.1, 46.5 and 87.2 μM, respectively.
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Affiliation(s)
- Wen-Jian Lan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Wei Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Wan-Ling Liang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Zeng Xu
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China.
| | - Xiu Le
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Jun Xu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Chi-Keung Lam
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China.
| | - De-Po Yang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Hou-Jin Li
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China.
| | - Lai-You Wang
- Institute of Chinese Medical Sciences, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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47
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Wijeratne EMK, Espinosa-Artiles P, Gruener R, Gunatilaka AAL. Thielavialides A-E, nor-spiro-azaphilones, and a bis-spiro-azaphilone from Thielavia sp. PA0001, an endophytic fungus isolated from aeroponically grown Physalis alkekengi. JOURNAL OF NATURAL PRODUCTS 2014; 77:1467-1472. [PMID: 24882589 PMCID: PMC4076029 DOI: 10.1021/np500237h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Indexed: 06/03/2023]
Abstract
Four new nor-spiro-azaphilones, thielavialides A-D (1- 4), a new bis-spiro-azaphilone, thielavialide E (5), together with pestafolide A (6), were isolated from the endophytic fungal strain, Thielavia sp. PA0001, occurring in the healthy leaf tissue of aeroponically grown Physalis alkekengi. The structures and relative configurations of 1-5 were established on the basis of their MS and NMR data. Possible biosynthetic pathways to thielavialides A-E (1- 5) from pestafolide A (6), some involving a Favorskii-like rearrangement, are proposed.
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Hume PA, Furkert DP, Brimble MA. Total Synthesis of Virgatolide B via Exploitation of Intramolecular Hydrogen Bonding. J Org Chem 2014; 79:5269-81. [DOI: 10.1021/jo5008527] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Paul A. Hume
- Maurice
Wilkins Centre for Molecular Biodiscovery, School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1142, New Zealand
| | - Daniel. P. Furkert
- Maurice
Wilkins Centre for Molecular Biodiscovery, School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1142, New Zealand
| | - Margaret A. Brimble
- Maurice
Wilkins Centre for Molecular Biodiscovery, School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1142, New Zealand
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49
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Cyclodepsipeptides and other O-containing heterocyclic metabolites from Beauveria felina EN-135, a marine-derived entomopathogenic fungus. Mar Drugs 2014; 12:2816-26. [PMID: 24828289 PMCID: PMC4052318 DOI: 10.3390/md12052816] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 03/25/2014] [Accepted: 04/28/2014] [Indexed: 01/02/2023] Open
Abstract
Bioassay-guided fractionation of a culture extract of Beauveria felina EN-135, an entomopathogenic fungus isolated from a marine bryozoan, led to the isolation of a new cyclodepsipeptide, iso-isariin D (1); two new O-containing heterocyclic compounds that we have named felinones A and B (2 and 3); and four known cyclodepsipeptides (4–7). The structures were elucidated via spectroscopic analysis, and the absolute configurations of 1 and 2 were determined using single-crystal X-ray diffraction and CD, respectively. All isolated compounds were evaluated for antimicrobial activity and brine-shrimp (Artemia salina) lethality.
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50
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Karmakar R, Pahari P, Mal D. Phthalides and Phthalans: Synthetic Methodologies and Their Applications in the Total Synthesis. Chem Rev 2014; 114:6213-84. [DOI: 10.1021/cr400524q] [Citation(s) in RCA: 249] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Raju Karmakar
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
- Technical University of Braunschweig, 38106 Braunschweig, Germany
| | - Pallab Pahari
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
- Synthetic
Organic Chemistry Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India
| | - Dipakranjan Mal
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
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