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Akiba M, Kinoshita K, Kino Y, Sato JI, Koyama K. Isolation of three new meroterpenoids and seven known compounds from Albatrellus yasudae and their Aβ-aggregation inhibitory activity. Bioorg Med Chem Lett 2020; 30:126808. [DOI: 10.1016/j.bmcl.2019.126808] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 11/01/2019] [Accepted: 11/04/2019] [Indexed: 10/25/2022]
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Wang S, Li ZH, Ai HL, He J, Feng T, Liu JK. Polyellisin, a novel polyketide from cultures of the basidiomycete Polyporus ellisii. RSC Adv 2018; 8:31538-31541. [PMID: 35548250 PMCID: PMC9085629 DOI: 10.1039/c8ra06544f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 09/04/2018] [Indexed: 11/24/2022] Open
Abstract
Polyellisin (1), an unprecedented polyketide possessing a tricyclic system sharing a spiroketal carbon, was isolated from cultures of the basidiomycete Polyporus ellisii. The structure with absolute configuration was elucidated by means of spectroscopic methods and the single crystal X-ray diffraction. Polyellisin showed NO production inhibition with an IC50 value of 17.2 μM. Polyellisin (1), an unprecedented polyketide possessing a tricyclic system sharing a spiroketal carbon, was isolated from cultures of the basidiomycete Polyporus ellisii.![]()
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Affiliation(s)
- Shuang Wang
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
- College of Pharmacy and Chemistry
| | - Zheng-Hui Li
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Hong-Lian Ai
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Juan He
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Tao Feng
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
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Xu D, Pang XJ, Zhao T, Xu LL, Yang XL. New alkenylated tetrahydropyran derivatives from the marine sediment-derived fungus Westerdykella dispersa and their bioactivities. Fitoterapia 2017; 122:45-51. [PMID: 28842357 DOI: 10.1016/j.fitote.2017.08.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 08/19/2017] [Accepted: 08/21/2017] [Indexed: 11/28/2022]
Abstract
Six new alkenylated tetrahydropyran derivatives belonged to polyketides, designated as (12R,13R)-dihydroxylanomycinol (1), (12S,13S)-dihydroxylanomycinol (2), (12R,13S)-dihydroxylanomycinol (3) and (12S,13R)-dihydroxylanomycinol (4), (12S,13R)-N-acetyl-dihydroxylanomycin (5) and (12S,13S)-N-acetyl-dihydroxylanomycin (6), together with one related known compound lanomycinol (7) were isolated from the liquid cultures of Westerdykella dispersa obtained from the marine sediments. Their structures and absolute configurations were determined on the basis of extensive analysis of NMR spectra combined with comparison of NMR data to those of known compound, and computational method via calculation of the electronic circular dichroism (ECD). The anti-agricultural pathogenic fungal and antibacterial activities of all isolated compounds were evaluated. Compounds 1-7 exhibited moderate antifungal activities selectively against tested fungal strains with minimum inhibitory concentration (MIC) values ranging from 12.5 to 50μg/mL, and weak antibacterial activities selectively against tested antibacterial strains with MIC value at 100μg/mL.
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Affiliation(s)
- Dan Xu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | - Xue-Jiao Pang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | - Ting Zhao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | - Lu-Lin Xu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | - Xiao-Long Yang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China.
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Lee SR, Lee D, Lee HJ, Noh HJ, Jung K, Kang KS, Kim KH. Renoprotective chemical constituents from an edible mushroom, Pleurotus cornucopiae in cisplatin-induced nephrotoxicity. Bioorg Chem 2017; 71:67-73. [DOI: 10.1016/j.bioorg.2017.01.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 01/16/2017] [Accepted: 01/17/2017] [Indexed: 10/20/2022]
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Characterization of a New Trioxilin and a Sulfoquinovosyl Diacylglycerol with Anti-Inflammatory Properties from the Dinoflagellate Oxyrrhis marina. Mar Drugs 2017; 15:md15030057. [PMID: 28264430 PMCID: PMC5367014 DOI: 10.3390/md15030057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 02/04/2017] [Accepted: 02/13/2017] [Indexed: 11/17/2022] Open
Abstract
Two new compounds—a trioxilin and a sulfoquinovosyl diacylglycerol (SQDG)—were isolated from the methanolic extract of the heterotrophic dinoflagellate Oxyrrhis marina cultivated by feeding on dried yeasts. The trioxilin was identified as (4Z,8E,13Z,16Z,19Z) -7(S),10(S),11(S)-trihydroxydocosapentaenoic acid (1), and the SQDG was identified as (2S)-1-O-hexadecanosy-2-O-docosahexaenoyl-3-O-(6-sulfo-α-d-quinovopyranosyl)-glycerol (2) by a combination of nuclear magnetic resonance (NMR) spectra, mass analyses, and chemical reactions. The two compounds were associated with docosahexaenoic acid, which is a major component of O. marina. The two isolated compounds showed significant nitric oxide inhibitory activity on lipopolysaccharide-induced RAW264.7 cells. Compound 2 showed no cytotoxicity against hepatocarcinoma (HepG2), neuroblastoma (Neuro-2a), and colon cancer (HCT-116) cells, while weak cytotoxicity was observed for compound 1 against Neuro-2a cells.
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Norbisabolane and eremophilane sesquiterpenoids from cultures of the Basidiomycete Polyporus ellisii. Fitoterapia 2013; 91:194-198. [PMID: 24013036 DOI: 10.1016/j.fitote.2013.08.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 08/27/2013] [Accepted: 08/28/2013] [Indexed: 11/20/2022]
Abstract
Three new 11,12,15-norbisabolane sesquiterpenoids, polisins A-C (1-3), and four new eremophilane sesquiterpenoids, polylisins A-D (4-7), were isolated from cultures of the Basidiomycete Polyporus ellisii. These new structures were elucidated based on extensive spectroscopic studies and the structures of polisin A (1) and polylisin A (4) were confirmed by single-crystal X-ray crystallographic analysis. All compounds were evaluated for their inhibitory activities against two isozymes of 11β-hydroxysteroid dehydrogenases (11β-HSD1 and 11β-HSD2).
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Karaś MA, Russa R. New long chain bases in lipophosphonoglycan of Acanthamoeba castellanii. Lipids 2013; 48:639-50. [PMID: 23636605 DOI: 10.1007/s11745-013-3794-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 04/16/2013] [Indexed: 10/26/2022]
Abstract
The polymer called lipophosphonoglycan (LPG) was isolated from Acanthamoeba castellanii membranes after exhaustive delipidation and butanol extraction. A novel extremely long phytosphingosine was revealed in glycoinositolphosphosphingolipid (GIPSL). All data obtained by gas-liquid chromatography coupled with MS analyses of products liberated during acid methanolysis and products of sodium metaperiodate and permanganate-periodate oxidations showed an unusual pattern of long chain bases (LCB) with branched bases (anteiso-C₂₄, anteiso-C₂₅, anteiso-C₂₆, iso-C₂₆, anteiso-C₂₇, and anteiso-C28) and normal ones (C₂₄, C₂₅, C₂₆, C₂₇). The phytosphingosines with hexa-, hepta-, and octacosanoic chains have not been detected in Acanthamoeba cells up to now. Also, the isomer configuration of long chain bases in LPG of A. castellanii was not defined in earlier reports. In the GC-MS chromatograms, the component forming a peak corresponding to anteiso-C₂₅ phytosphingosine was the most abundant and constituted more than 50 % of all LCB.
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Affiliation(s)
- Magdalena A Karaś
- Department of Genetics and Microbiology, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland.
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Wang S, Zhang L, Liu LY, Dong ZJ, Li ZH, Liu JK. Six novel steroids from culture of basidiomycete Polyporus ellisii. NATURAL PRODUCTS AND BIOPROSPECTING 2012; 2:240-244. [PMCID: PMC4131608 DOI: 10.1007/s13659-012-0058-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 10/08/2012] [Indexed: 06/03/2023]
Abstract
Investigation of the culture of basidiomycete Polyporus ellisii led to the isolation of a novel compound 3β,9α,15α-trihydroxy-(22E,24R)-10(5→4)-abeo-ergosta-6,8(14),22-trien-5-one (1) with a new 5/7/6/5 ring system of ergosterol skeleton. In addition, five new steroids, 5β,6β-epoxy-3β,7α,9α-trihydroxy-(22E,24R)-ergosta-8(14),22-dien-15-one (2), 5β,6β-epoxy-3β,7α-dihydroxy-(22E,24R)-ergosta-8(14),22-dien-15-one (3), 5α,6α-epoxy-3β,9α,15α-trihydroxy-(22E,24R)-ergosta-8(14),22-dien-7-one (4), 15α-acetoxy-(22E,24R)-ergosta-4,6,8(14),22-tetraen-3-one (5), 15β-methoxy-(22E,24R)-ergosta-4,6,8(14),22-tetraen-3-one (6), along with four known ergosterols (7–10), were obtained. All structures were elucidated based on 1D and 2D NMR spectral data. New compounds were evaluated for cytotoxicity against five human cancer cell lines, only compound 4 was found to exhibit a favorable cytotoxicity profile toward all tested tumor cell lines. ![]()
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Affiliation(s)
- Shuang Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Ling Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
| | - Liang-Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Ze-Jun Dong
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
| | - Zheng-Hui Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
| | - Ji-Kai Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
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Liu L, Shi XW, Zong SC, Tang JJ, Gao JM. Scabronine M, a novel inhibitor of NGF-induced neurite outgrowth from PC12 cells from the fungus Sarcodon scabrosus. Bioorg Med Chem Lett 2012; 22:2401-6. [DOI: 10.1016/j.bmcl.2012.02.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2011] [Revised: 01/27/2012] [Accepted: 02/13/2012] [Indexed: 01/19/2023]
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Liu HW, Hu L, Zhang AL, Gao JM. Steroids and phenolic constituents from the fruiting bodies of the basidiomycete Sarcodon joedes. Nat Prod Res 2012; 27:80-4. [DOI: 10.1080/14786419.2012.656112] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Han-Wei Liu
- a Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Science, Northwest A&F University , Yangling 712100 , Shaanxi , P.R. China
| | - Ling Hu
- a Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Science, Northwest A&F University , Yangling 712100 , Shaanxi , P.R. China
| | - An-Ling Zhang
- a Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Science, Northwest A&F University , Yangling 712100 , Shaanxi , P.R. China
| | - Jin-Ming Gao
- a Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Science, Northwest A&F University , Yangling 712100 , Shaanxi , P.R. China
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Yang SX, Wang HP, Gao JM, Zhang Q, Laatsch H, Kuang Y. Fusaroside, a unique glycolipid from Fusarium sp., an endophytic fungus isolated from Melia azedarach. Org Biomol Chem 2012; 10:819-24. [DOI: 10.1039/c1ob06426f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Barreto-Bergter E, Sassaki GL, de Souza LM. Structural analysis of fungal cerebrosides. Front Microbiol 2011; 2:239. [PMID: 22164155 PMCID: PMC3230030 DOI: 10.3389/fmicb.2011.00239] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Accepted: 11/13/2011] [Indexed: 11/13/2022] Open
Abstract
Of the ceramide monohexosides (CMHs), gluco- and galactosyl-ceramides are the main neutral glycosphingolipids expressed in fungal cells. Their structural determination is greatly dependent on the use of mass spectrometric techniques, including fast atom bombardment-mass spectrometry, electrospray ionization, and energy collision-induced dissociation mass spectrometry. Nuclear magnetic resonance has also been used successfully. Such a combination of techniques, combined with classical analytical separation, such as high-performance thin layer chromatography and column chromatography, has led to the structural elucidation of a great number of fungal CMHs. The structure of fungal CMH is conserved among fungal species and consists of a glucose or galactose residue attached to a ceramide moiety containing 9-methyl-4,8-sphingadienine with an amidic linkage to hydroxylated fatty acids, most commonly having 16 or 18 carbon atoms and unsaturation between C-3 and C-4. Along with their unique structural characteristics, fungal CMHs have a peculiar subcellular distribution and striking biological properties. Fungal cerebrosides were also characterized as antigenic molecules directly or indirectly involved in cell growth or differentiation in Schizophyllum commune, Cryptococcus neoformans, Pseudallescheria boydii, Candida albicans, Aspergillus nidulans, Aspergillus fumigatus, and Colletotrichum gloeosporioides. Besides classical techniques for cerebroside (CMH) analysis, we now describe new approaches, combining conventional thin layer chromatography and mass spectrometry, as well as emerging technologies for subcellular localization and distribution of glycosphingolipids by secondary ion mass spectrometry and imaging matrix-assisted laser desorption ionization time-of-flight.
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Affiliation(s)
- Eliana Barreto-Bergter
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro Rio de Janeiro, Brazil
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Li Y, Ma YT, Kuang Y, Gao JM, Qin JC. Pecipamide, a New Sphingosine Derivative from the Cultures of Polyporus picipes (Basidiomycetes). Lipids 2010; 45:457-61. [DOI: 10.1007/s11745-010-3413-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2009] [Accepted: 03/31/2010] [Indexed: 10/19/2022]
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WU ZJ, OUYANG MA, SU RK, GUO YX. Two New Cerebrosides and Anthraquinone Derivatives from the Marine FungusAspergillus niger. CHINESE J CHEM 2008. [DOI: 10.1002/cjoc.200890142] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Zhang Y, Wang S, Li XM, Cui CM, Feng C, Wang BG. New Sphingolipids with a Previously Unreported 9-Methyl-C20-sphingosine Moiety from a Marine Algous Endophytic Fungus Aspergillus niger EN-13. Lipids 2007; 42:759-64. [PMID: 17605063 DOI: 10.1007/s11745-007-3079-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2007] [Accepted: 05/27/2007] [Indexed: 10/23/2022]
Abstract
Asperamides A (1) and B (2), a sphingolipid and their corresponding glycosphingolipid possessing a hitherto unreported 9-methyl-C20-sphingosine moiety, were characterized from the culture extract of Aspergillus niger EN-13, an endophytic fungus isolated from marine brown alga Colpomenia sinuosa. The structures were elucidated by spectroscopic and chemical methods as (2S,2'R,3R,3'E,4E,8E)-N-(2'-hydroxy-3'-hexadecenoyl)-9-methyl-4,8-icosadien-1,3-diol (1) and 1-O-beta-D-glucopyranosyl-(2S,2'R,3R,3'E,4E,8E)-N-(2'-hydroxy-3'-hexadecenoyl)-9-methyl-4,8-icosadien-1,3-diol (2). In the antifungal assay, asperamide A (1) displayed moderate activity against Candida albicans.
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Affiliation(s)
- Yi Zhang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, People's Republic of China
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Abstract
The new substance hemsleyin imine A (1) was isolated along with (2S,3S,4R,2'R)-2-(2'-hydroxytetracosanoyl-amino)-octadecan-1,3,4-triol (2), (2S,3 R,4E,8E)-1-O-beta-D-glucopyranosyl -3-hydroxy-2-(2'R-hydroxypalmitoylamino)-4,8-octadecadiene (3) from the rhizomes of Hemsleya macrocarpa var. clavata. Their chemical structures were established mainly by spectral analysis and chemical evidence. Compound 1 possesses the skeleton of an imine moiety, which is novel in natural products.
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Affiliation(s)
- Yu-Ping Lin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of the Sciences, Kunming 650204, People's Republic of China
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Affiliation(s)
- Ji-Kai Liu
- Kunming Institute of Botany, the Chinese Academy of Sciences, Kunming 650204, P. R. China.
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Gao JM, Zhang AL, Chen H, Liu JK. Molecular species of ceramides from the ascomycete truffle Tuber indicum. Chem Phys Lipids 2005; 131:205-13. [PMID: 15351272 DOI: 10.1016/j.chemphyslip.2004.05.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2004] [Revised: 05/26/2004] [Accepted: 05/27/2004] [Indexed: 11/18/2022]
Abstract
The ceramide fractions were isolated from the chloroform/methanolic extractable of the fruiting bodies of Tuber indicum and separated into three kinds of molecular species TI-1, TI-2, and TI-3 by normal and reverse phase silica gel-column chromatography. By means of (1)H NMR and (13)C NMR spectroscopy, fast atom bombardment mass spectrometry (FAB-MS), and chemical degradation experiment, their component sphingoid base for TI-1 and TI-2 was uniformly (2S,3S,4R)-2-amino-1,3,4-octadecantriol, while the sphingoid of TI-3 was d-erythro-sphingosine, and their structures have been determined unequivocally to be (2S,2'R,3S,4R)-2-(2'-d-hydroxyalkanoylamino) octadecane-1,3,4-triol, the fatty acid composition of which consists of 2-hydroxydocosanoic, 2-hydroxytetracosanoic, and 2-hydroxytricosanoic acids (from major to minor); (2S,3S,4R)-2-(alkanoylamino)octadecane-1,3,4-triol, the fatty acid composition of which is unusual and consists of docosanoic, hexadecanoic, tricosanoic, octadecanoic and nonadecanoic acids (from major to minor); and (2S,3R,4E)-2-(alkanoylamino)-4-octadecene-1,3-diol, the component fatty acids of which were hexadecanoic (predominant) and octadecanoic acids, respectively.
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Affiliation(s)
- Jin-Ming Gao
- College of Life Sciences, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, Shaanxi, People's Republic of China.
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Lee S, Shim SH, Kim JS, Shin KH, Kang SS. Aldose Reductase Inhibitors from the Fruiting Bodies of Ganoderma applanatum. Biol Pharm Bull 2005; 28:1103-5. [PMID: 15930755 DOI: 10.1248/bpb.28.1103] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The isolation and characterization of rat lens aldose reductase (RLAR) inhibitors from the fruiting bodies of Ganoderma applanatum were conducted. Among the extracts and fractions from G. applanatum tested, the MeOH extract and EtOAc fraction were found to exhibit potent RLAR inhibition in vitro, their IC50 being 1.7 and 0.8 microg/ml, respectively. From the active EtOAc fraction, seven compounds with diverse structural moieties were isolated and identified as D-mannitol (1), 2-methoxyfatty acids (2), cerebrosides (3), daucosterol (4), 2,5-dihydroxyacetophenone (5), 2,5-dihydroxybenzoic acid (6), and protocatechualdehyde (7). Among them, protocatechualdehyde (7) was found to be the most potent RLAR inhibitor (IC50=0.7 microg/ml), and may be useful for the prevention and/or treatment of diabetic complications.
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Affiliation(s)
- Sanghyun Lee
- Natural Products Research Institute and College of Pharmacy, Seoul National University, Japan
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Jin-Ming G, Wei-Ming Z, She-Qi Z, Xing Z, An-Ling Z, Hui C, Yue-Ying S, Ming T. Sphingolipids from the edible fungusTuber indicum. EUR J LIPID SCI TECH 2004. [DOI: 10.1002/ejlt.200401052] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Shu RG, Wang FW, Yang YM, Liu YX, Tan RX. Antibacterial and xanthine oxidase inhibitory cerebrosides from Fusarium sp. IFB-121, and endophytic fungus in Quercus variabilis. Lipids 2004; 39:667-73. [PMID: 15588024 DOI: 10.1007/s11745-004-1280-9] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Two antibacterial and xanthine oxidase inhibitory cerebrosides, one of which is chemically new, were characterized from the chloroform-methanol (1:1) extract of Fusarium sp. IFB-121, an endophytic fungus in Quercus variabilis. By means of chemical and spectral methods [IR, electrospray ionization MS (ESI-MS), tandem ESI-MS, 1H and 13C NMR, distortionless enhancement by polarization transfer, COSY, heteronuclear multiple-quantum coherence, heteronuclear multiple-bond correlation, and 2-D nuclear Overhauser effect correlation spectroscopy], the structure of the new metabolite named fusaruside was established as (2S,2'R,3R,3'E,4E,8E,10E)-1-O-beta-D-glucopyranosyl-2-N-(2'-hydroxy-3'-octadecenoyl)-3-hydroxy-9-methyl-4,8,10-sphingatrienine, and the structure of the other was identified as (2S,2'R,3R,3'E,4E,8E)-1-O-beta-D-glucopyranosyl-2-N-(2'-hydroxy-3'-octadecenoyl)-3-hydroxy-9-methyl-4,8-sphingadienine. Both new and known cerebrosides, although inactive to Trichophyton rubrum and Candida albicans, showed strong antibacterial activities against Bacillus subtilis, Escherichia coli, and Pseudomonas fluorescens, with their minimum inhibitory concentrations being 3.9, 3.9, and 1.9 microg/mL, and 7.8, 3.9, and 7.8 microg/mL, respectively. Furthermore, both metabolites were inhibitory to xanthine oxidase, with the IC50 value of fusaruside being 43.8 +/- 3.6 microM and the known cerebroside being 55.5 +/- 1.8 microM.
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Affiliation(s)
- R G Shu
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, PR China
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Barreto-Bergter E, Pinto MR, Rodrigues ML. Structure and biological functions of fungal cerebrosides. AN ACAD BRAS CIENC 2004; 76:67-84. [PMID: 15048196 DOI: 10.1590/s0001-37652004000100007] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Ceramide monohexosides (CMHs, cerebrosides) are glycosphingolipids composed of a hydrophobic ceramide linked to one sugar unit. In fungal cells, CMHs are very conserved molecules consisting of a ceramide moiety containing 9-methyl-4,8-sphingadienine in amidic linkage to 2-hydroxyoctadecanoic or 2-hydroxyhexadecanoic acids, and a carbohydrate portion consisting of one residue of glucose or galactose. 9-Methyl 4,8-sphingadienine-containing ceramides are usually glycosylated to form fungal cerebrosides, but the recent description of a ceramide dihexoside (CDH) presenting phytosphingosine in Magnaporthe grisea suggests the existence of alternative pathways of ceramide glycosylation in fungal cells. Along with their unique structural characteristics, fungal CMHs have a peculiar subcellular distribution and striking biological properties. In Pseudallescheria boydii, Candida albicans, Cryptococcus neoformans, Aspergillus nidulans, A. fumigatus, and Schizophyllum commune, CMHs are apparently involved in morphological transitions and fungal growth. The elucidation of structural and functional aspects of fungal cerebrosides may therefore contribute to the design of new antifungal agents inhibiting growth and differentiation of pathogenic species.
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Affiliation(s)
- Eliana Barreto-Bergter
- Instituto de Microbiologia Professor Paulo de Góes, Departamento de Microbiologia Geral, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-590, Brasil.
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Fyrst H, Herr DR, Harris GL, Saba JD. Characterization of free endogenous C14 and C16 sphingoid bases from Drosophila melanogaster. J Lipid Res 2004; 45:54-62. [PMID: 13130120 DOI: 10.1194/jlr.m300005-jlr200] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Sphingolipid metabolites function as signaling molecules in mammalian cells, influencing cell proliferation, migration, and death. Recently, sphingolipid signaling has been implicated in the regulation of developmental processes in Drosophila melanogaster. However, biochemical analysis of endogenous Drosophila sphingoid bases has not been reported. In this study, a rapid HPLC-based method was developed for the analysis of free sphingoid bases endogenous to Drosophila. Four molecular species of endogenous free sphingoid bases were observed in adult flies and identified as C14 and C16 sphingosine (Sph) and C14 and C16 dihydrosphingosine (DHS). The C14 molecular species were the most prevalent, accounting for approximately 94% of the total free sphingoid bases in adult wild-type flies. An Sph kinase (SK) mutant demonstrated significant accumulation of all four sphingoid bases, whereas a serine palmitoyltransferase mutant demonstrated low but detectable levels. When endogenous sphingoid bases were evaluated at different stages of development, the observed ratio of Sph to DHS increased significantly from early embryo to adulthood. Throughout development, this ratio was significantly lower in the SK mutant as compared with the wild-type. This is the first report describing analysis of free C14 and C16 sphingoid bases from Drosophila. The biochemical characterization of these lipids from mutant models of sphingolipid metabolism should greatly facilitate the analysis of the biological significance of these signaling molecules.
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Affiliation(s)
- Henrik Fyrst
- Children's Hospital, Oakland Research Institute, 5700 Martin Luther King Jr Way, Oakland, CA 94609, USA
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Liu JK, Hu L, Dong ZJ. A glucosylceramide with a novel ceramide and three novel ceramides from the basidiomycete Cortinarius umidicola. Lipids 2003; 38:669-75. [PMID: 12934678 DOI: 10.1007/s11745-003-1113-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
A glucosylceramide with novel ceramide and three novel ceramide homologs were isolated from the basidiomycete Cortinarius umidicola and structurally characterized. The ceramide portion of the glucocerebroside consists of a rare (4E,8E)-9-methyl-4,8-sphingadienine sphingoid base. In contrast, the three ceramide homologs, while having the same sphingoid base, contain as FA residues 2-hydroxydocosanoic acid, 2-hydroxytricosanoic acid, and 2-hydroxytetracosanoic acid.
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Affiliation(s)
- Ji-Kai Liu
- Kunming Institute of Botany, The Chinese Academy of Sciences, Kunming 650204, People's Republic of China.
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Batrakov SG, Konova IV, Sheichenko VI, Galanina LA. Glycolipids of the filamentous fungus Absidia corymbifera F-295. Chem Phys Lipids 2003; 123:157-64. [PMID: 12691848 DOI: 10.1016/s0009-3084(02)00166-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The lipids extracted with CHCl(3)/MeOH mixtures from mycelium of the lower filamentous fungus Absidia corymbifera F-295 were found to contain three glycolipids. Based on the IR, 1H and 13C NMR spectra, plasma-desorption ionisation (PDI) mass spectra as well as chemical degradation results, the glycolipids were established to be 1-O-beta-D-glucopyranosyl-2-N-(2'-D-hydroxyhexadecanoyl)-9-methylsphinga-4(E),8(E)-dienine (glucosyl ceramide) and 2-O-(6'-O-beta-D-galactopyranosyl)-beta-D-galactopyranosides of 2-D-hydroxy and erythro-2,3-dihydroxy fatty acids C(9), C(11), and C(13). They accounted for about 3.4, 0.8, and 0.4%, respectively, of the total lipids extracted. No lipids identical to the above monohydroxy and dihydroxy fatty acid glycosides have been reported.
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Affiliation(s)
- S G Batrakov
- Russian Research Centre 'Hydrobios', Ministry of Health, ul. Kosmonavtov 18, korp. 2, Moscow, 129301, Russia
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Batrakov SG, Konova IV, Sheichenko VI, Esipov SE, Galanina LA, Istratova LN. Unusual fatty acid composition of cerebrosides from the filamentous soil fungus Mortierella alpina. Chem Phys Lipids 2002; 117:45-51. [PMID: 12191843 DOI: 10.1016/s0009-3084(02)00028-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The cerebrosides produced by the soil filamentous fungus Mortierella alpina strain KG-1/95 account for about 13% of the total polar lipids extractable from lyophilised cells with chloroform/methanol mixtures. By means of 1H NMR and (13)C NMR spectroscopy, matrix-assisted laser-desorption ionisation mass spectrometry, and chemical degradation experiment, they have been shown to be 1-O-beta-D-glucopyranosyl-2-N-(2'-D-hydroxyalkanoyl)-9-methylsphinga-4(E),8(E)-dienines, the fatty acid composition of which is unusual and consists of 2-hydroxytridecanoic (4%), 2-hydroxytetradecanoic (60%), 2-hydroxypentadecanoic (20%), and 2-hydroxyhexadecanoic (16%) acids.
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Affiliation(s)
- S G Batrakov
- Russian Research Centre, Hydrobios of Ministry of Health, ul. Kosmonavtov 18, korp. 2, Moscow 129301, Russia
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Gao JM, Wang CY, Zhang AL, Liu JK. A new trihydroxy fatty acid from the ascomycete, Chinese truffle Tuber indicum. Lipids 2001; 36:1365-70. [PMID: 11834089 DOI: 10.1007/s11745-001-0853-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
From the chloroform/methanol extract of the fruiting bodies of the ascomycete Chinese truffle Tuber indicum Cooke et Massee, a new trihydroxylated monounsaturated fatty acid (1) has been isolated. The structure of this new linoleic acid-derived metabolite was established as 9,10,11-trihydroxy-(12Z)-12-octadecenoic acid by means of spectroscopic and chemical methods. The fatty acid composition of the chloroform-soluble fraction of this fungus was analyzed by gas chromatography-mass spectrometry. The content of the predominant unsaturated fatty acids (oleic and linoleic acids) is as high as 68%. The use of dimethyl disulfide adduct was effective in the determination of the position of the double bond, and the glycol oxidation fission reaction with sodium metaperiodate supported on silica gel was helpful in establishing the location of the trihydroxylic groups in the new fatty acid.
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Affiliation(s)
- J M Gao
- College of Life Sciences, Northwest Science & Technology University of Agriculture and Forestry, Yangling, Shaanxi, People's Republic of China.
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Abstract
A new C(18)-phytosphingosine ceramide containing non-hydroxy fatty acid, armillaramide (1), has been isolated together with ergosterol peroxide from the fruiting bodies of the basidiomycete Armillaria mellea. Its structure was established as (2S,3S,4R)-2-hexadecanoylamino-octadecane-1,3,4-triol by spectroscopic and chemical methods.
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Affiliation(s)
- J M Gao
- Laboratory of Phytochemisty, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China
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