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Abstract
Natural products possess a wide range of bioactivities with potential for therapeutic usage. While the distribution of these molecules can vary greatly there is some correlation that exists between the biodiversity of an environment and the uniqueness and concentration of natural products found in that region or area. The Caribbean and pan-Caribbean area is home to thousands of species of endemic fauna and flora providing huge potential for natural product discovery and by way, potential leads for drug development. This can especially be said for marine natural products as many of are rapidly diluted through diffusion once released and therefore are highly potent to achieve long reaching effects. This review seeks to highlight a small selection of marine natural products from the Caribbean region which possess antiproliferative, anti-inflammatory and antipathogenic properties while highlighting any synthetic efforts towards bioactive analogs.
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Affiliation(s)
- Adrian Demeritte
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322, USA
| | - William M Wuest
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322, USA.
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2
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Shi Y, Zaleta-Pinet DA, Clark BR. Isolation, Identification, and Decomposition of Antibacterial Dialkylresorcinols from a Chinese Pseudomonas aurantiaca Strain. J Nat Prod 2020; 83:194-201. [PMID: 31999458 DOI: 10.1021/acs.jnatprod.9b00315] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A chemical investigation of a Chinese Pseudomonas aurantiaca strain has yielded a new benzoquinone (4) and furanone (5), in addition to the known dialkylresorcinols 1 and 2. Extensive decomposition studies on the major metabolite 1 produced an additional furanone derivative (6), a hydroxyquinone (7), and two unusual resorcinol and hydroxyquinone dimers (8 and 9). Structures were elucidated by nuclear magnetic resonance spectroscopy in combination with tandem mass spectrometry analysis. These studies illustrate the potential of artifacts as a source of additional chemical diversity. Compounds 1 and 2 showed moderate antibacterial activity against a panel of Gram-positive pathogens, while the antibacterial activities of the artifacts (4-9) were reduced.
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Affiliation(s)
- Yue Shi
- School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , People's Republic of China
| | - Diana A Zaleta-Pinet
- School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , People's Republic of China
| | - Benjamin R Clark
- School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , People's Republic of China
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3
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Marentes-Culma R, Orduz-Díaz LL, Coy-Barrera E. Targeted Metabolite Profiling-Based Identification of Antifungal 5- n-Alkylresorcinols Occurring in Different Cereals against Fusarium oxysporum. Molecules 2019; 24:molecules24040770. [PMID: 30795501 PMCID: PMC6412215 DOI: 10.3390/molecules24040770] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 02/18/2019] [Accepted: 02/19/2019] [Indexed: 11/16/2022] Open
Abstract
A rapid and convenient biochemometrics-based analysis of several cereal-derived extracts was used to identify n-alkyl(enyl)resorcinols (AR) as antifungals against Fusarium oxysporum. Total AR content and liquid chromatography/mass spectrometry (LC-MS)-based profiles were recorded for each extract, in addition to their antifungal activity, to help integrate these chemical and biological datasets by orthogonal partial least squares regression. In this study, we developed and used a micro-scale amended medium (MSAM) assay to evaluate the in vitro mycelial growth inhibition at low amounts of extracts. Triticale husk-derived extracts had the highest AR content (662.1 µg olivetol equivalent/g dry extract), exhibiting >79% inhibition at the highest doses (10.0–1.0 µg/µL). Correlation of the chemical and antifungal datasets using supervised metabolite profiling revealed that 5-n-nonadecanylresorcinol, 5-n-heneicosylresorcinol, and 5-n-tricosyl-resorcinol were the most active ARs occurring in cereal products from Colombia. Hence, we propose the biochemometrics-based approach as a useful tool for identifying AR-like antifungals against F. oxysporum.
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Affiliation(s)
- Ronald Marentes-Culma
- Laboratorio de Química Bioorgánica, Universidad Militar Nueva Granada, Cajicá 250247, Colombia.
| | - Luisa L Orduz-Díaz
- Laboratorio de Química Bioorgánica, Universidad Militar Nueva Granada, Cajicá 250247, Colombia.
| | - Ericsson Coy-Barrera
- Laboratorio de Química Bioorgánica, Universidad Militar Nueva Granada, Cajicá 250247, Colombia.
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4
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Harms H, Klöckner A, Schrör J, Josten M, Kehraus S, Crüsemann M, Hanke W, Schneider T, Schäberle TF, König GM. Antimicrobial Dialkylresorcins from Marine-Derived Microorganisms: Insights into Their Mode of Action and Putative Ecological Relevance. Planta Med 2018; 84:1363-1371. [PMID: 29991081 DOI: 10.1055/a-0653-7451] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Zobellia galactanivorans has been reported as a seaweed-associated or marine-derived species with largely unknown secondary metabolites. The combination of bioinformatic analysis and MS- and bioactivity guided separation led to the isolation of a new antibiotically active dialkylresorcin from the marine bacterium Z. galactanivorans. The antibiotic profile of the new dialkylresorcin zobelliphol (1: ) was investigated and compared with related and naturally occurring dialkyresorcins (i.e., stemphol (2: ) and 4-butyl-3,5-dihydroxybenzoic acid (3: )) from the marine-derived fungus Stemphylium globuliferum. Bacterial reporter strain assays provided insights into the mode of action of this antibiotic compound class. We identified an interference with bacterial DNA biosynthesis for the dialkylresorcin derivative 1: . In addition, the putative biosynthetic gene cluster corresponding to production of 1: was identified and a biosynthetic hypothesis was deduced.
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Affiliation(s)
- Henrik Harms
- Institute for Pharmaceutical Biology, University of Bonn, Germany
- German Center for Infection Research (DZIF) Partner Site Cologne/Bonn, Germany
| | - Anna Klöckner
- German Center for Infection Research (DZIF) Partner Site Cologne/Bonn, Germany
- Institute for Pharmaceutical Microbiology, University of Bonn, Germany
| | - Jan Schrör
- Institute for Pharmaceutical Biology, University of Bonn, Germany
| | - Michaele Josten
- German Center for Infection Research (DZIF) Partner Site Cologne/Bonn, Germany
- Institute for Pharmaceutical Microbiology, University of Bonn, Germany
- Institute of Medical Microbiology, Immunology and Parasitology, University of Bonn, Germany
| | - Stefan Kehraus
- Institute for Pharmaceutical Biology, University of Bonn, Germany
| | - Max Crüsemann
- Institute for Pharmaceutical Biology, University of Bonn, Germany
| | - Wiebke Hanke
- Institute for Pharmaceutical Biology, University of Bonn, Germany
| | - Tanja Schneider
- German Center for Infection Research (DZIF) Partner Site Cologne/Bonn, Germany
- Institute for Pharmaceutical Microbiology, University of Bonn, Germany
| | - Till F Schäberle
- German Center for Infection Research (DZIF) Partner Site Cologne/Bonn, Germany
- Institute for Insect Biotechnology, Justus Liebig University Giessen, Germany
| | - Gabriele M König
- Institute for Pharmaceutical Biology, University of Bonn, Germany
- German Center for Infection Research (DZIF) Partner Site Cologne/Bonn, Germany
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5
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Liu J, Hao Y, Wang Z, Ni F, Wang Y, Gong L, Sun B, Wang J. Identification, Quantification, and Anti-inflammatory Activity of 5- n-Alkylresorcinols from 21 Different Wheat Varieties. J Agric Food Chem 2018; 66:9241-9247. [PMID: 30107738 DOI: 10.1021/acs.jafc.8b02911] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The characteristic constituent and anti-inflammatory activity of 5- n-alkylresorcinols (ARs) from 21 wheat bran samples in China were investigated in this study. The amount of ARs ranged from 697 to 1732 μg/g in the tested samples, which were composed of five different homologues. Among these homologues, C19:0 and C21:0 were the most abundant, followed by C17:0, C23:0, and C25:0. Moreover, the mRNA expression of IL-1β, IL-6, and TNF-α in LPS-activated RAW264.7 macrophage cells were significantly inhibited by ARs supplementation. The molecular mechanisms behind its anti-inflammatory activity could result from the suppression of nuclear factor-κB (NF-κB) and JNK/MAPK activation. ARs treatment notably decreased NF-κB p65 nuclear translocation and inhibitor κB (IκBα) kinase and JNK phosphorylation. Additionally, ARs homologues C17:0 had been proven to be the main active constituent. The results from this study could be used to promote the comprehensive utilization of wheat and its byproducts in improving human health.
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6
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Jiang CS, Zhou ZF, Yang XH, Lan LF, Gu YC, Ye BP, Guo YW. Antibacterial sorbicillin and diketopiperazines from the endogenous fungus Penicillium sp. GD6 associated Chinese mangrove Bruguiera gymnorrhiza. Chin J Nat Med 2018; 16:358-365. [PMID: 29860997 DOI: 10.1016/s1875-5364(18)30068-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Indexed: 02/06/2023]
Abstract
One new sorbicillin derivative, 2-deoxy-sohirnone C (1), one new diketopiperazine alkaloid, 5S-hydroxynorvaline-S-Ile (2), and two naturally occurring diketopiperazines, 3S-hydroxylcyclo(S-Pro-S-Phe) (3) and cyclo(S-Phe-S-Gln) (4), together with three known compounds were isolated from the Chinese mangrove endophytic fungus Penicillium sp. GD6. Their structures were determined on the basis of extensive spectroscopic analyses and by comparison with literature data. The absolute configuration of 3-hydroxyl moiety in 3 was determined by Mosher's method, while the absolute stereochemistry of 2 and 4 was established by comparison with the CD spectra of natural and synthesized diketopiperazines. Compound 1 showed moderate antibacterial activity against Methicillin-resistant Staphylococcus aureus with a MIC value of 80 μg·mL-1.
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Affiliation(s)
- Cheng-Shi Jiang
- China State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; School of Biological Science and Technology, University of Jinan, Jinan 250022, China
| | - Zhen-Fang Zhou
- China State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xiao-Hong Yang
- School of Life Science & Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Le-Fu Lan
- China State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yu-Cheng Gu
- Syngenta Jealott's Hill International Research Centre, Berkshire RG42 6EY, United Kingdom
| | - Bo-Ping Ye
- School of Life Science & Technology, China Pharmaceutical University, Nanjing 210009, China.
| | - Yue-Wei Guo
- China State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
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7
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Xu QL, Xiao YS, Shen Y, Wu HM, Zhang X, Deng XZ, Wang TT, Li W, Tan RX, Jiao RH, Ge HM. Novel chaetospirolactone and orsellide F from an endophytic fungus Chaetomium sp. J Asian Nat Prod Res 2018; 20:234-241. [PMID: 28478698 DOI: 10.1080/10286020.2017.1320548] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 04/14/2017] [Indexed: 05/26/2023]
Abstract
Chaetospirolactone (1), a novel spiro-lactone bearing a rare 1-oxaspiro [4.4] non-7-ene-2,6-dione skeleton, and orsellide F (2), together with six known compounds (3-8), were isolated from an endophytic fungus Chaetomium sp. NF00754. Their structures were determined by interpretation of spectroscopic data. The absolute configurations of 1 and 2 were established by analysis of single X-ray crystallographic data and CD spectra. Compounds 3, 4, and 6 showed moderate acetylcholinesterase inhibitory activity with IC50 values of 7.34, 5.19, and 7.67 μM, respectively.
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Affiliation(s)
- Qin-Lan Xu
- a State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules, Nanjing University , Nanjing 210046 , China
| | - Yong-Sheng Xiao
- a State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules, Nanjing University , Nanjing 210046 , China
| | - Ye Shen
- a State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules, Nanjing University , Nanjing 210046 , China
| | - Hui-Min Wu
- a State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules, Nanjing University , Nanjing 210046 , China
| | - Xuan Zhang
- a State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules, Nanjing University , Nanjing 210046 , China
| | - Xin-Zhao Deng
- a State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules, Nanjing University , Nanjing 210046 , China
| | - Ting-Ting Wang
- a State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules, Nanjing University , Nanjing 210046 , China
| | - Wei Li
- a State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules, Nanjing University , Nanjing 210046 , China
| | - Ren-Xiang Tan
- a State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules, Nanjing University , Nanjing 210046 , China
| | - Rui-Hua Jiao
- a State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules, Nanjing University , Nanjing 210046 , China
| | - Hui-Ming Ge
- a State Key Laboratory of Pharmaceutical Biotechnology , Institute of Functional Biomolecules, Nanjing University , Nanjing 210046 , China
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8
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Qi B, Liu X, Mo T, Zhu Z, Li J, Wang J, Shi X, Zeng K, Wang X, Tu P, Abe I, Shi S. 3,5-Dimethylorsellinic Acid Derived Meroterpenoids from Penicillium chrysogenum MT-12, an Endophytic Fungus Isolated from Huperzia serrata. J Nat Prod 2017; 80:2699-2707. [PMID: 28960979 DOI: 10.1021/acs.jnatprod.7b00438] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Eight new chrysogenolides (A-H (1-8)) and seven known (9-15) 3,5-dimethylorsellinic acid derived meroterpenoids were isolated from the solid substrate fermentation cultures of a Huperzia serrata endophytic fungus, Penicillium chrysogenum MT-12. The structures of the new compounds were elucidated by interpretation of spectroscopic and spectrometric data (1D and 2D NMR, IR, and HRESIMS). The absolute configurations of 1-4 were determined by single-crystal X-ray crystallographic analysis, and those of 5-8 were assigned on the basis of experimental and calculated electronic circular dichroism spectra. Compounds 3, 4, 6, 11, and 12 showed inhibition of nitric oxide production in lipopolysaccharide-activated RAW 264.7 macrophage cells with IC50 values in the range of 4.3-78.2 μM (positive control, indomethacin, IC50 = 33.6 ± 1.4 μM).
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Affiliation(s)
- Bowen Qi
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Xiao Liu
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Ting Mo
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Zhixiang Zhu
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Jun Li
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Juan Wang
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Xiaoping Shi
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Kewu Zeng
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University , Beijing 100191, People's Republic of China
| | - Xiaohui Wang
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Pengfei Tu
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shepo Shi
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
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Kikuchi H, Ito I, Takahashi K, Ishigaki H, Iizumi K, Kubohara Y, Oshima Y. Isolation, Synthesis, and Biological Activity of Chlorinated Alkylresorcinols from Dictyostelium Cellular Slime Molds. J Nat Prod 2017; 80:2716-2722. [PMID: 28921976 DOI: 10.1021/acs.jnatprod.7b00456] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Eight chlorinated alkylresorcinols, monochasiol A-H (1-8), were isolated from the fruiting bodies of Dictyostelium monochasioides. Compounds 1-8 were synthesized to confirm their structures and to obtain sufficient material for performing biological tests. Monochasiol A (1) selectively inhibited the concanavalin A-induced interleukin-2 production in Jurkat cells, a human T lymphocyte cell line. Monochasiols were biogenetically synthesized by the combination of biosynthetic enzymes relating to the principal polyketides, MPBD and DIF-1, produced by Dictyostelium discoideum.
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Affiliation(s)
- Haruhisa Kikuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University , 6-3, Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Ikuko Ito
- Graduate School of Pharmaceutical Sciences, Tohoku University , 6-3, Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Katsunori Takahashi
- Department of Medical Technology, Faculty of Health Science, Gunma Paz University , 1-7-1, Tonyamachi, Takasaki 370-0006, Japan
| | - Hirotaka Ishigaki
- Department of Medical Technology, Faculty of Health Science, Gunma Paz University , 1-7-1, Tonyamachi, Takasaki 370-0006, Japan
| | - Kyoichi Iizumi
- Graduate School of Health and Sports Science, Juntendo University , 1-1 Hiraga-gakuendai, Inzai, Chiba 270-1695, Japan
| | - Yuzuru Kubohara
- Graduate School of Health and Sports Science, Juntendo University , 1-1 Hiraga-gakuendai, Inzai, Chiba 270-1695, Japan
| | - Yoshiteru Oshima
- Graduate School of Pharmaceutical Sciences, Tohoku University , 6-3, Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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10
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Xu XM, Li DY, Hua HM, Li ZL, Liu Q. Two new threitol orsellinates from a sea mud-derived fungus, Ascotricha sp. ZJ-M-5. J Asian Nat Prod Res 2017; 19:673-677. [PMID: 28276771 DOI: 10.1080/10286020.2016.1228635] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 08/23/2016] [Indexed: 06/06/2023]
Abstract
Two new d-threitol orsellinates (1-2) were isolated from the EtOAc extract of a sea mud-derived fungus, Ascotricha sp. ZJ-M-5, cultured in Czapek Dox broth. These two compounds featured in the symmetrical substitution of orsellinic acid or acetic acid, which was established on the basis of 1D and 2D NMR experiments. The characteristic optical rotations enabled the assignment of the absolute configuration.
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Affiliation(s)
- Xiu-Mei Xu
- a Key Laboratory of Structure-based Drug Design & Discovery, Ministry of Education , Shenyang Pharmaceutical University , Shenyang 110016 , China
- b School of Traditional Chinese Materia Media , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Dan-Yi Li
- b School of Traditional Chinese Materia Media , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Hui-Ming Hua
- a Key Laboratory of Structure-based Drug Design & Discovery, Ministry of Education , Shenyang Pharmaceutical University , Shenyang 110016 , China
- b School of Traditional Chinese Materia Media , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Zhan-Lin Li
- a Key Laboratory of Structure-based Drug Design & Discovery, Ministry of Education , Shenyang Pharmaceutical University , Shenyang 110016 , China
- b School of Traditional Chinese Materia Media , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Qian Liu
- c School of Pharmacy , Shenyang Pharmaceutical University , Shenyang 110016 , China
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11
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Wu L, Fan Y, Fan C, Yu Y, Sun L, Jin Y, Zhang Y, Ye RD. Licocoumarone isolated from Glycyrrhiza uralensis selectively alters LPS-induced inflammatory responses in RAW 264.7 macrophages. Eur J Pharmacol 2017; 801:46-53. [PMID: 28263754 DOI: 10.1016/j.ejphar.2017.02.049] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 02/28/2017] [Accepted: 02/28/2017] [Indexed: 01/12/2023]
Abstract
The effects of licocoumarone (LC) isolated from Glycyrrhiza uralensis were studied in LPS-stimulated RAW 264.7 macrophages. Our study demonstrated that LC dose-dependently attenuated LPS-induced NO production by down-regulating iNOS expression. Additionally, the treatment with LC inhibited LPS-induced expression of cytokines including IL-1β, IL-6 and IL-10, but not TNF-α, at both mRNA and protein levels. Similar suppressive effects of LC were observed on LPS-stimulated murine peritoneal macrophages as well. Furthermore, LC significantly reduced LPS-stimulated NF-κB activation by inhibition of IκBα degradation and p65 phosphorylation. The results from NF-κB-luc reporter gene assay further support the inhibitory effect of LC on NF-κB activation. Further studies showed that LC also interfered with the MAPKs and STAT3 signaling pathways, which are typical inflammatory signaling pathways triggered by LPS. Taken together, these results show that LC attenuates LPS-induced cytokine gene expression in RAW 264.7 macrophages through mechanisms that involve NF-κB, MAPKs and STAT3 signaling pathways, but the pattern of inhibition differs from that of a global immunosuppresant. Our study indicates that LC is a functional constituent of Glycyrrhiza uralensis with potential implications in infectious and immune-related diseases.
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Affiliation(s)
- Lehao Wu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yunpeng Fan
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Chao Fan
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yang Yu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lei Sun
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yu Jin
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
| | - Yan Zhang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Richard D Ye
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Institute of Chinese Medical Sciences, University of Macau, Macau, SAR, China.
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12
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Hu S, Zheng Z, Chen F, Wang M. The depigmenting effect of natural resorcinol type polyphenols Kuwanon O and Sanggenon T from the roots of morus australis. J Ethnopharmacol 2017; 195:196-203. [PMID: 27851907 DOI: 10.1016/j.jep.2016.11.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 10/05/2016] [Accepted: 11/08/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Morus australis, one of the major Morus species growing in East Asia, is rich in phenolic compounds. The extract of M. australis has been used as skin whitening components for a long period. The action mechanisms of its principal constituents are still unclear. This study aims to evaluate the skin lightening effects of phenolic compounds extracted from the root of M. australis in different melanocyte systems and artificial skin models. MATERIALS AND METHODS The depigmenting effect of resorcinol type polyphenols (RTPs) from the root extract of M. australis was evaluated in murine b16 and melan-a cell lines using a combined sulforhodamine B assay. Tyrosinase activity and the expression of melanogenesis proteins were evaluated for the mechanism study. The artificial skin model is used as a replacement of the animal test. RESULTS Only Kuwanon O and Sanggenon T were found to have significant depigmenting effects in both murine b16 and melan-a cell lines. Their depigmenting mechanisms are slightly different in the two cell systems. In b16 cells, Kuwanon O and Sanggenon T, together with the other two RTPs, induced post-transcriptional degradations of MITF without suppressing its mRNA expression, leading to significant decreases of TRP-1 and TRP-2 production. While in melan-a cells, the levels of tyrosinase families were suppressed via MITF downregulation at both transcription and translation level by RTPs, with Kuwanon O inducing the greatest suppression. Further evaluations in artificial skin model demonstrated the outstanding depigmenting effects of Kuwanon O and Sanggenon T. CONCLUSIONS Kuwanon O and Sanggenon T from M.australis root extract are two potential skin whitening ingredients. To screen resorcinol flavonone derivatives with an isoprenyl group in the Diels-Alder substituent might be an option for the search of potent hypopigmenting agents from plants.
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Affiliation(s)
- Shuting Hu
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China
| | - Zongping Zheng
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China
| | - Feng Chen
- Institute for Food & Bioresource Engineering, College of Engineering, Peking University, PR China
| | - Mingfu Wang
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China.
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Afonso TB, Costa MS, Rezende de Castro R, Freitas S, Silva A, Schneider MPC, Martins R, Leão PN. Bartolosides E-K from a Marine Coccoid Cyanobacterium. J Nat Prod 2016; 79:2504-2513. [PMID: 27680198 DOI: 10.1021/acs.jnatprod.6b00351] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The glycosylated and halogenated dialkylresorcinol (DAR) compounds bartolosides A-D (1-4) were recently discovered from marine cyanobacteria and represent a novel family of glycolipids, encoded by the brt biosynthetic gene cluster. Here, we report the isolation and NMR- and MS-based structure elucidation of monoglycosylated bartolosides E-K (5-11), obtained from Synechocystis salina LEGE 06099, a strain closely related to the cyanobacterium that produces the diglycosylated 2-4. In addition, a genome region containing orthologues of brt genes was identified in this cyanobacterium. Interestingly, the major bartoloside in S. salina LEGE 06099 was 1 (above 0.5% dry wt), originally isolated from the phylogenetically distant filamentous cyanobacterium Nodosilinea sp. LEGE 06102. Compounds 5-11 are analogues of 1, with different alkyl chain lengths or halogenation patterns. Their structures and the organization of the brt genes suggest that the DAR-forming ketosynthase BrtD can generate structural diversity by accepting fatty acyl-derived substrates of varying length. Compound 9 features a rare midchain gem-dichloro moiety, indicating that the putative halogenase BrtJ is able to act twice on the same midchain carbon.
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Affiliation(s)
- Tiago B Afonso
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto , Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
- Department of Biology, Faculty of Sciences, University of Porto , Rua do Campo Alegre, 4169-007 Porto, Portugal
- Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), University of Porto , Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - M Sofia Costa
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto , Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Roberta Rezende de Castro
- Institute of Biological Sciences, Center of Genomic and System Biology, Federal University of Pará (UFPA) , Belém, PA 66075-110, Brazil
| | - Sara Freitas
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto , Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Artur Silva
- Institute of Biological Sciences, Center of Genomic and System Biology, Federal University of Pará (UFPA) , Belém, PA 66075-110, Brazil
| | - Maria Paula Cruz Schneider
- Institute of Biological Sciences, Center of Genomic and System Biology, Federal University of Pará (UFPA) , Belém, PA 66075-110, Brazil
| | - Rosário Martins
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto , Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
- Centre of Health and Environmental Research-CISA, ESTSP, Polytechnic Institute of Porto , Rua Valente Perfeito 322, 4400-330 Vila Nova de Gaia, Portugal
| | - Pedro N Leão
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto , Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
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Lage TCA, Horta LP, Montanari RM, Silva JG, de Fatima A, Fernandes SA, Modolo LV. Structural Elucidation and Free Radical Scavenging Activity of a new o-Orsellinic Acid Derivative Isolated from the Lichen Cladonia rappii. Nat Prod Commun 2016; 11:1311-1312. [PMID: 30807031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
Rappiidic acid, a new o-orsellinic acid derivative, was isolated from the lichen Cladonia rappii. Its capability to scavenge reactive oxygen species (ROS) and reactive nitrogen species (RNS) was investigated and compared with resveratrol and (+)-usnic acid. Usnic acid at 100 μM was the most efficient ROS scavenger, exhibiting activity 3-fold higher than that of resveratrol. At the same concentration, rappidic acid scavenged 23.1% of ROS formed, demonstrating that this compound is twice as active as resveratrol. Both compounds were shown to be poor RNS scavengers.
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Park HS, Vick EJ, Gao Y, He C, Almosnid NM, Farone M, Farone AL. Cis- and Trans-gnetin H from Paeonia suffruticosa suppress inhibitor kappa B kinase phosphorylation in LPS-stimulated human THP-1 cells. J Ethnopharmacol 2016; 189:202-209. [PMID: 27196294 DOI: 10.1016/j.jep.2016.05.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 05/12/2016] [Accepted: 05/16/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The inflammatory response is an important mechanism in host defense; however, overstimulation and chronic inflammation are involved in many important human diseases. Currently, tumor necrosis factor-alpha blockers such as infliximab and adalimumab along with methotrexate are used in cases of severe and chronic disease. However, there are severe side effects and limitations associated with these treatments. Cis- and trans-gnetin H are compounds isolated from the seeds of Paeonia suffruticosa, a medicinal plant used in traditional Chinese medicine for the treatment of many conditions, including inflammatory diseases. In this study, we investigated possible anti-inflammatory mechanisms of cis- and trans-gnetin H against LPS-stimulated human THP-1 cells. MATERIAL AND METHODS PMA-differentiated THP-1 cells were pretreated with increasing concentrations of cis- and trans-gnetin H with or without LPS. Following treatment, cytotoxicity and the TNF-α, IL-1β, and IL-8 response were measured. We also characterized the nuclear translocation of NF-κB subunit p65 (RelA) by immunofluorescence and then investigated NF-κB activation by measuring the phosphorylation of NF-κB mediators, IKK-β, IκB α, and p65 by western blotting. RESULTS We found that cis- and trans-gnetin H significantly inhibited the cytokine response in a concentration-dependent manner without affecting cell viability. Cis- and trans-gnetin H effectively inhibited nuclear translocation of p65 and phosphorylation of IKK-β, IκB α, and p65. While both compounds showed promising anti-inflammatory effects, trans-gnetin H was determined to be more effective in suppressing cytokine responses. CONCLUSION We demonstrated that cis- and trans-gnetin H suppress cytokine response in LPS-stimulated THP-1 cells by preventing activation of key signaling molecules, IKK-β, IκB α, and p65, involved in the NF-κB pathway and suggest the use of cis- and trans-gnetin H in potential therapies for conditions and diseases associated with chronic inflammation.
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Affiliation(s)
- Hyo S Park
- Middle Tennessee State University, 1301 East Main Street, Murfreesboro, Tennessee 37132, USA.
| | - Eric J Vick
- Middle Tennessee State University, 1301 East Main Street, Murfreesboro, Tennessee 37132, USA.
| | - Ying Gao
- Middle Tennessee State University, 1301 East Main Street, Murfreesboro, Tennessee 37132, USA.
| | - Chunnian He
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science, No. 151 Malianwa, North Road, Haidian District, Beijing 100193, PR China.
| | - Nadin Marwan Almosnid
- Middle Tennessee State University, 1301 East Main Street, Murfreesboro, Tennessee 37132, USA.
| | - Mary Farone
- Middle Tennessee State University, 1301 East Main Street, Murfreesboro, Tennessee 37132, USA.
| | - Anthony L Farone
- Middle Tennessee State University, 1301 East Main Street, Murfreesboro, Tennessee 37132, USA.
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Nguekeu YMM, Ndontsa BL, Mbouangouere R, Awouafack MD, Ito T, Tane P, Morita H. A New Alkenylmethylresorcinol from the Fruits of Ardisia kivuensis. Nat Prod Commun 2016; 11:661-662. [PMID: 27319144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
The phytochemical study of the MeOH extract from the fruits of Ardisia kivuensis was carried out using repeated silica gel column chromatography followed by Sephadex LH-20 to afford a new alkenylmethylresorcinol, ardisinol III (1) along with three known compounds, oleanolic acid, β-sitosterol and pentacosanoic acid. The structure of 1 was elucidated using spectroscopic analysis (NMR and MS), and comparison with published data. Compound 1 had weak antioxidant activity (IC50 109.8 μg/mL) while other compounds were not active as compared to L-ascorbic acid (IC50 3.9 μg/mL).
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Seong ZK, Kim HS, Won YM, Kim JL, Song HH, Kim DY, Oh SR, Cho HW, Cho JH, Lee HK. Phenylacylphenol derivatives with anti-melanogenic activity from Stewartia pseudocamellia. Arch Pharm Res 2016; 39:636-45. [PMID: 27116301 DOI: 10.1007/s12272-016-0717-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 02/03/2016] [Indexed: 11/28/2022]
Abstract
Three new phenylacylphenol derivatives, stewartianol (1), deoxystewartianol-4'-O-arabinoglucoside (2), and stewartianol-3-O-glucoside (3), along with nine known compounds, methylesculin (4), fraxoside (5), fraxetin (6), scopletin (7), (+)-dihydromyricetin (8), (+)-taxifolin-7-O-β-D-glucose (9), (+)-taxifolin (10), (+)-dihydrokaempferol-7-O-β-D-glucose (11), and 3-acetyl-ursolic acid (12), were isolated from the twigs of Stewartia pseudocamellia; commonly used as folk medicine in Korea. The structures of the isolated compounds were identified using spectroscopic analysis, including 1D, 2D NMR, MS and compared with published data. The compounds were tested for their anti-melanogenic activity in cultured murine B16 melanoma cells. Stewartianol (1) and stewartianol-3-O-glucoside (3) showed an inhibitory effect significantly on melanogenesis in a concentration-dependent manner.
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Affiliation(s)
- Zuh-Kyung Seong
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology, yeongudanji-ro 30, Ochang-eup, Cheongwon-gu, Cheongju-si, 363-883, Korea
- University of Science & Technology, 217 Gajeong-ro Yuseong-gu, Daejeon, Korea
| | - Hui-Seong Kim
- Division of AIDS, Center for Immunology and Pathology, Korea National Institute of Health, 187 Osongsaengmyeong2-ro, Cheongwon, 363-951, Korea
| | - Yu-Mi Won
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology, yeongudanji-ro 30, Ochang-eup, Cheongwon-gu, Cheongju-si, 363-883, Korea
- University of Science & Technology, 217 Gajeong-ro Yuseong-gu, Daejeon, Korea
| | - Jae-Lim Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology, yeongudanji-ro 30, Ochang-eup, Cheongwon-gu, Cheongju-si, 363-883, Korea
- University of Science & Technology, 217 Gajeong-ro Yuseong-gu, Daejeon, Korea
| | - Hyuk-Hwan Song
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology, yeongudanji-ro 30, Ochang-eup, Cheongwon-gu, Cheongju-si, 363-883, Korea
| | - Doo-Young Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology, yeongudanji-ro 30, Ochang-eup, Cheongwon-gu, Cheongju-si, 363-883, Korea
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology, yeongudanji-ro 30, Ochang-eup, Cheongwon-gu, Cheongju-si, 363-883, Korea
- University of Science & Technology, 217 Gajeong-ro Yuseong-gu, Daejeon, Korea
| | - Hyun-Woo Cho
- Joennam Development Institute for Korean Traditional Medicines, 288 Woodland-gil Anyang-myeon Jangheung-Gun, Jeonnam, Korea
| | - Jung-Hee Cho
- Joennam Development Institute for Korean Traditional Medicines, 288 Woodland-gil Anyang-myeon Jangheung-Gun, Jeonnam, Korea
| | - Hyeong-Kyu Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology, yeongudanji-ro 30, Ochang-eup, Cheongwon-gu, Cheongju-si, 363-883, Korea.
- University of Science & Technology, 217 Gajeong-ro Yuseong-gu, Daejeon, Korea.
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Gény C, Rivière G, Bignon J, Birlirakis N, Guittet E, Awang K, Litaudon M, Roussi F, Dumontet V. Anacardic Acids from Knema hookeriana as Modulators of Bcl-xL/Bak and Mcl-1/Bid Interactions. J Nat Prod 2016; 79:838-844. [PMID: 27008174 DOI: 10.1021/acs.jnatprod.5b00915] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Proteins of the Bcl-2 family are key targets in anticancer drug discovery. Disrupting the interaction between anti- and pro-apoptotic members of this protein family was the approach chosen in this study to restore apoptosis. Thus, a biological screening on the modulation of the Bcl-xL/Bak and Mcl-1/Bid interactions permitted the selection of Knema hookeriana for further phytochemical investigations. The ethyl acetate extract from the stem bark led to the isolation of six new compounds, three acetophenone derivatives (1-3) and three anacardic acid derivatives (4-6), along with four known anacardic acids (7-10) and two cardanols (11, 12). Their structures were elucidated by 1D and 2D NMR analysis in combination with HRMS experiments. The ability of these compounds to antagonize Bcl-xL/Bak and Mcl-1/Bid association was determined, using a protein-protein interaction assay, but only anacardic acid derivatives (4-10) exhibited significant binding properties, with Ki values ranging from 0.2 to 18 μM. Protein-ligand NMR experiments further revealed that anacardic acid 9, the most active compound, does not interact with the anti-apoptotic proteins Bcl-xL and Mcl-1 but instead interacts with pro-apoptotic protein Bid.
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Affiliation(s)
- Charlotte Gény
- Institut de Chimie des Substances Naturelles, CNRS-ICSN UPR2301, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Gwladys Rivière
- Institut de Chimie des Substances Naturelles, CNRS-ICSN UPR2301, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Jérome Bignon
- Institut de Chimie des Substances Naturelles, CNRS-ICSN UPR2301, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Nicolas Birlirakis
- Institut de Chimie des Substances Naturelles, CNRS-ICSN UPR2301, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Eric Guittet
- Institut de Chimie des Substances Naturelles, CNRS-ICSN UPR2301, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Khaljah Awang
- Department of Chemistry, Faculty of Science, University Malaya , Kuala Lumpur 50603, Malaysia
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, CNRS-ICSN UPR2301, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Fanny Roussi
- Institut de Chimie des Substances Naturelles, CNRS-ICSN UPR2301, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Vincent Dumontet
- Institut de Chimie des Substances Naturelles, CNRS-ICSN UPR2301, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
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Chiu S, Wang T, Belski M, Abourashed EA. HPLC-Guided Isolation, Purification and Characterization of Phenylpropanoid and Phenolic Constituents of Nutmeg Kernel (Myristica fragrans). Nat Prod Commun 2016; 11:483-488. [PMID: 27396199 PMCID: PMC4943679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
Many studies on the biological activities of nutmeg continue to appear in the literature. The most common targets include GIT, CNS, oxidative stress and inflammation. However, results obtained from most studies are often inconsistent due to the variability of utilized samples, lack of standardized nutmeg products or insufficient amounts of pure compounds for comprehensive follow-up investigation. To address the consistency and supply issue we utilized available technology to develop a reproducible procedure for preparation of specific extracts and isolation of the major phenolic constituents present in nutmeg kemel. A well-defined and reproducible sequence of extraction, fractionation and chromatographic purification was adopted and was guided by HPLC fingerprinting. Spectroscopic methods, mainly NMR, and mass spectrometry were utilized to identify each compound. Thirteen compounds were isolated in a pure form and identified as: elemicin (1), isoelemicin (2), myristicin (4), surinamensin (5), malabaricone C (6), 2-(3'-allyl-2',6'-dimethoxy-phenyloxy)-l- acetoxy-(3,4-dimethoxyphenyl)-propyl ester (7), methoxylicarin A (8), licarin A (9), malabaricone B (10), licarin C (11), 5'-methoxylicarin B (12), licarin B (13), and 2-(3'-allyl-2',6'-dimethoxy-phenyloxy)-l-methyl-5-methoxy-1,2-dihydrobenzofuran (3, a new compound). With repeated isolation runs, these pure compounds can be prepared in quantities sufficient for biological evaluation as needed. The availability of purified compounds will also allow the development of specific, accurate, and sensitive analytical procedures for pharmacokinetic studies and for quality control of nutmeg products. Both aspects are essential for nutmeg-focused drug discovery. The same approach can also be adapted to other medicinal plants of potential interest.
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Sivasothy Y, Krishnan T, Chan KG, Abdul Wahab SM, Othman MA, Litaudon M, Awang K. Quorum Sensing Inhibitory Activity of Giganteone A from Myristica cinnamomea King against Escherichia coli Biosensors. Molecules 2016; 21:391. [PMID: 27102164 PMCID: PMC6273857 DOI: 10.3390/molecules21030391] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/10/2016] [Accepted: 03/15/2016] [Indexed: 01/22/2023] Open
Abstract
Malabaricones A-C (1-3) and giganteone A (4) were isolated from the bark of Myristica cinnamomea King. Their structures were elucidated and characterized by means of NMR and MS spectral analyses. These isolates were evaluated for their anti-quorum sensing activity using quorum sensing biosensors, namely Escherichia coli [pSB401] and Escherichia coli [pSB1075], whereby the potential of giganteone A (4) as a suitable anti-quorum sensing agent was demonstrated.
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Affiliation(s)
- Yasodha Sivasothy
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Thiba Krishnan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Siti Mariam Abdul Wahab
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Muhamad Aqmal Othman
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, Centre National de la Recherche Scientifique, 91198 Gif-sur-Yvette, Cedex, France.
| | - Khalijah Awang
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
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Preisitsch M, Niedermeyer THJ, Heiden SE, Neidhardt I, Kumpfmüller J, Wurster M, Harmrolfs K, Wiesner C, Enke H, Müller R, Mundt S. Cylindrofridins A-C, Linear Cylindrocyclophane-Related Alkylresorcinols from the Cyanobacterium Cylindrospermum stagnale. J Nat Prod 2016; 79:106-115. [PMID: 26684177 DOI: 10.1021/acs.jnatprod.5b00768] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A rapid and exhaustive one-step biomass extraction as well as an enrichment and cleanup procedure has been developed for HPLC-UV detection and quantification of closely related [7.7]paracyclophanes and structural derivatives based on a two-phase solvent system. The procedure has been validated using the biomass of the carbamidocyclophane- and cylindrocyclophane-producing cyanobacterium Nostoc sp. CAVN2 and was utilized to perform a screening comprising 102 cyanobacterial strains. As a result, three new cylindrocyclophane-related alkylresorcinols, cylindrofridins A-C (1-3), and known cylindrocyclophanes (4-6) were detected and isolated from Cylindrospermum stagnale PCC 7417. Structures of 1-3 were elucidated by a combination of 1D and 2D NMR experiments, HRMS, and ECD spectroscopy. Cylindrofridin A (1) is the first naturally occurring [7.7]paracyclophane-related monomeric derivative. In contrast, cylindrofridins B (2) and C (3) represent dimers related to 1. Due to chlorination at the alkyl carbon atom in 1-3, the site of [7.7]paracyclophane macrocycle formation, the cylindrofridins represent linearized congeners of the cylindrocyclophanes. Compounds 1-3 were not toxic against nontumorigenic HaCaT cells (IC50 values >25 μM) compared to the respective cylindrocyclophanes, but 1 was the only cylindrofridin showing moderate activity against methicillin-resistant Staphylococcus aureus (MRSA) and Streptococcus pneumoniae with MIC values of 9 and 17 μM, respectively.
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Affiliation(s)
- Michael Preisitsch
- Institute of Pharmacy, Department of Pharmaceutical Biology, Ernst-Moritz-Arndt-University , Friedrich-Ludwig-Jahn-Straße 17, 17489 Greifswald, Germany
| | - Timo H J Niedermeyer
- Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University , Auf der Morgenstelle 28, 72076 Tübingen, Germany
- German Centre for Infection Research (DZIF) , Partner Site Tübingen, Germany
- Cyano Biotech GmbH , Magnusstraße 11, 12489 Berlin, Germany
| | - Stefan E Heiden
- Institute of Pharmacy, Department of Pharmaceutical Biotechnology, Ernst-Moritz-Arndt-University , Felix-Hausdorff-Straße 3, 17489 Greifswald, Germany
| | - Inga Neidhardt
- Institute of Pharmacy, Department of Pharmaceutical Biology, Ernst-Moritz-Arndt-University , Friedrich-Ludwig-Jahn-Straße 17, 17489 Greifswald, Germany
| | - Jana Kumpfmüller
- Institute of Pharmacy, Department of Pharmaceutical Biotechnology, Ernst-Moritz-Arndt-University , Felix-Hausdorff-Straße 3, 17489 Greifswald, Germany
| | - Martina Wurster
- Institute of Pharmacy, Department of Pharmaceutical Biology, Ernst-Moritz-Arndt-University , Friedrich-Ludwig-Jahn-Straße 17, 17489 Greifswald, Germany
| | - Kirsten Harmrolfs
- Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research, and Department of Pharmaceutical Biotechnology, Saarland University , Campus E8.1, 66123 Saarbrücken, Germany
| | | | - Heike Enke
- Cyano Biotech GmbH , Magnusstraße 11, 12489 Berlin, Germany
| | - Rolf Müller
- Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research, and Department of Pharmaceutical Biotechnology, Saarland University , Campus E8.1, 66123 Saarbrücken, Germany
| | - Sabine Mundt
- Institute of Pharmacy, Department of Pharmaceutical Biology, Ernst-Moritz-Arndt-University , Friedrich-Ludwig-Jahn-Straße 17, 17489 Greifswald, Germany
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Wubshet SG, Brighente IMC, Moaddel R, Staerk D. Magnetic Ligand Fishing as a Targeting Tool for HPLC-HRMS-SPE-NMR: α-Glucosidase Inhibitory Ligands and Alkylresorcinol Glycosides from Eugenia catharinae. J Nat Prod 2015; 78:2657-2665. [PMID: 26496505 PMCID: PMC5036580 DOI: 10.1021/acs.jnatprod.5b00603] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A bioanalytical platform combining magnetic ligand fishing for α-glucosidase inhibition profiling and HPLC-HRMS-SPE-NMR for structural identification of α-glucosidase inhibitory ligands, both directly from crude plant extracts, is presented. Magnetic beads with N-terminus-coupled α-glucosidase were synthesized and characterized for their inherent catalytic activity. Ligand fishing with the immobilized enzyme was optimized using an artificial test mixture consisting of caffeine, ferulic acid, and luteolin before proof-of-concept with the crude extract of Eugenia catharinae. The combination of ligand fishing and HPLC-HRMS-SPE-NMR identified myricetin 3-O-α-L-rhamnopyranoside, myricetin, quercetin, and kaempferol as α-glucosidase inhibitory ligands in E. catharinae. Furthermore, HPLC-HRMS-SPE-NMR analysis led to identification of six new alkylresorcinol glycosides, i.e., 5-(2-oxopentyl)resorcinol 4-O-β-D-glucopyranoside, 5-propylresorcinol 4-O-β-D-glucopyranoside, 5-pentylresorcinol 4-O-[α-D-apiofuranosyl-(1→6)]-β-D-glucopyranoside, 5-pentylresorcinol 4-O-β-D-glucopyranoside, 4-hydroxy-3-O-methyl-5-pentylresorcinol 1-O-β-D-glucopyranoside, and 3-O-methyl-5-pentylresorcinol 1-O-[β-D-glucopyranosyl-(1→6)]-β-D-glucopyranoside.
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Affiliation(s)
- Sileshi G. Wubshet
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Inês M. C. Brighente
- Laboratório de Química de Produtos Naturais, Departamento de Química, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis-SC, 88040-900, Brazil
| | - Ruin Moaddel
- Biomedical Research Center, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, Maryland 21224, United States
| | - Dan Staerk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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Gao Y, He C, Ran R, Zhang D, Li D, Xiao PG, Altman E. The resveratrol oligomers, cis- and trans-gnetin H, from Paeonia suffruticosa seeds inhibit the growth of several human cancer cell lines. J Ethnopharmacol 2015; 169:24-33. [PMID: 25862967 DOI: 10.1016/j.jep.2015.03.074] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 01/15/2015] [Accepted: 03/10/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Paeonia suffruticosa Andrews (PSE) is a well-known Chinese medicine that has been widely used as an anti-tumor, anti-oxidative and anti-inflammatory agent. cis- and trans-gnetin H are two resveratrol oligomers isolated from the seeds of PSE. Although resveratrol is widely considered to be one of the most valuable natural chemopreventive agents and there are numerous studies on the antitumor activities of resveratrol, little is known about the antitumor properties of cis- and trans-gnetin H. MATERIALS AND METHODS The inhibitory effects of cis- and trans-gnetin H in different human cancer cell lines were assessed using fluorescent viability tests. Cytotoxicity in human lung and breast cancer cells was detected via nuclear condensation, cell permeability, and changes in the mitochondrial membrane potential (∆ψm). Apoptosis in human lung and breast cancer cells was assessed by flow cytometry, a luminescence assay and high-content screening analysis. Finally, a xenograft mice model was used to examine the efficacy of cis-gnetin H on lung tumors. RESULTS cis- and trans-gnetin H have superior activity in inhibiting the proliferation of four human cancer cell lines, A549 (lung), BT20 (breast), MCF-7 (breast) and U2OS (osteosarcoma), and promote cell apoptosis, while having a minimal effect on two normal human epithelial cell lines, HPL1A (lung) and HMEC (breast) used as controls. cis- and trans-gnetin H promote apoptosis by releasing mitochondria cytochrome c, activating caspase 3/7 and inhibiting NF-κB activation. Flow cytometry analysis shows that cis- or trans-gnetin H arrested the cell cycle of cancer cells at the G0-G1 phase. Moreover, cis-gnetin H suppressed the growth of xenograft lung tumors in mice. CONCLUSION Collectively, our findings demonstrate the promise of the natural compounds cis- and trans-gnetin H as candidates for cancer chemotherapy agents.
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Affiliation(s)
- Ying Gao
- Tennessee Center for Botanical Medicine Research and the Department of Biology, Middle Tennessee State University, 1301 E Main St, Murfreesboro, TN 37132, USA.
| | - Chunnian He
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, No. 151 Malianwa North Road, Haidian District, Beijing 100193, PR China.
| | - Ran Ran
- School of Life Sciences and Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China.
| | - Dabing Zhang
- School of Life Sciences and Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China.
| | - Dawei Li
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China.
| | - Pei-Gen Xiao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, No. 151 Malianwa North Road, Haidian District, Beijing 100193, PR China.
| | - Elliot Altman
- Tennessee Center for Botanical Medicine Research and the Department of Biology, Middle Tennessee State University, 1301 E Main St, Murfreesboro, TN 37132, USA.
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Calderón CE, Ramos C, de Vicente A, Cazorla FM. Comparative Genomic Analysis of Pseudomonas chlororaphis PCL1606 Reveals New Insight into Antifungal Compounds Involved in Biocontrol. Mol Plant Microbe Interact 2015; 28:249-260. [PMID: 25679537 DOI: 10.1094/mpmi-10-14-0326-fi] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Pseudomonas chlororaphis PCL1606 is a rhizobacterium that has biocontrol activity against many soilborne phytopathogenic fungi. The whole genome sequence of this strain was obtained using the Illumina Hiseq 2000 sequencing platform and was assembled using SOAP denovo software. The resulting 6.66-Mb complete sequence of the PCL1606 genome was further analyzed. A comparative genomic analysis using 10 plant-associated strains within the fluorescent Pseudomonas group, including the complete genome of P. chlororaphis PCL1606, revealed a diverse spectrum of traits involved in multitrophic interactions with plants and microbes as well as biological control. Phylogenetic analysis of these strains using eight housekeeping genes clearly placed strain PCL1606 into the P. chlororaphis group. The genome sequence of P. chlororaphis PCL1606 revealed the presence of sequences that were homologous to biosynthetic genes for the antifungal compounds 2-hexyl, 5-propyl resorcinol (HPR), hydrogen cyanide, and pyrrolnitrin; this is the first report of pyrrolnitrin encoding genes in this P. chlororaphis strain. Single-, double-, and triple-insertional mutants in the biosynthetic genes of each antifungal compound were used to test their roles in the production of these antifungal compounds and in antagonism and biocontrol of two fungal pathogens. The results confirmed the function of HPR in the antagonistic phenotype and in the biocontrol activity of P. chlororaphis PCL1606.
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Park JH, Jung YJ, Jung JW, Shrestha S, Han D, Lim DW, Baek NI. Two new isoarylbenzofuran diglucosides from the root bark of Morus alba. J Asian Nat Prod Res 2014; 17:357-363. [PMID: 25401999 DOI: 10.1080/10286020.2014.971775] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 09/28/2014] [Indexed: 06/04/2023]
Abstract
Two new arylbenzofuran diglucopyranosides, (2″R)-(-)-moracin-O-5',3″-β-D-diglucopyranoside (1) and (2″R)-(-)-moracin-P-5',2″-β-d-diglucopyranoside (2), along with known arylbenzofurans, moracin M 6-β-D-glucopyranoside (3), and an isomeric mixture of R-(-)-moracin O (4) and R-(-)-moracin P (5), were isolated from the root bark of Morus alba L. The structure of the compounds was elucidated based on mass spectrometry, infrared, 1D and 2D nuclear magnetic resonance spectroscopic data.
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Affiliation(s)
- Ji-Hae Park
- a Graduate School of Biotechnology, Kyung Hee University , Yongin 446-701 , Republic of Korea
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26
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Kardar MN, Zhang T, Coxon GD, Watson DG, Fearnley J, Seidel V. Characterisation of triterpenes and new phenolic lipids in Cameroonian propolis. Phytochemistry 2014; 106:156-163. [PMID: 25104230 DOI: 10.1016/j.phytochem.2014.07.016] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 06/19/2014] [Accepted: 07/09/2014] [Indexed: 05/10/2023]
Abstract
Chemical investigation of a sample of propolis originating from North-Western Cameroon led to the isolation of thirteen alk(en)ylphenols (1-13) (inseparable mixture) along with α-amyrin (14), β-amyrin (15), lupeol (16), cycloartenol (17), mangiferonic acid (18), ambonic acid (19), mangiferolic acid (20), ambolic acid (21), isomangiferolic acid (22) and nine alk(en)ylresorcinols (23-31) (inseparable mixture). All compounds were identified following analysis of their spectroscopic data and comparison with previously published reports. Compounds (8), (12), (13) and (30) are new natural products. GC-MS analysis carried out on the alk(en)ylphenol and alk(en)ylresorcinol mixtures (dimethyl disulphide trimethylsilyl derivatives) revealed the presence of saturated and mono-unsaturated compounds with side chain lengths ranging from C11 to C19 and C15 to C19, respectively. The position of the double bond in mono-unsaturated derivatives was established from the characteristic fragments resulting from the cleavage of the bond between the two methylthio-substituted carbons. The most abundant compound in each mixture was 3-(12'Z-heptadecenyl)-phenol (10) and 5-(12'Z-heptadecenyl)-resorcinol (29). This study is the first to report the presence of triterpenes (except for lupeol) and phenolic lipids, including eighteen compounds previously unreported in bee glue, in an African sample.
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Affiliation(s)
- M N Kardar
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, Scotland, UK
| | - T Zhang
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, Scotland, UK
| | - G D Coxon
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, Scotland, UK
| | - D G Watson
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, Scotland, UK
| | - J Fearnley
- Apiceutical Research Centre, Whitby, North Yorkshire, UK
| | - V Seidel
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, Scotland, UK.
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27
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Kim M, Lim SJ, Oidovsambuu S, Nho CW. Gnetin H isolated from Paeonia anomala inhibits FcεRI-mediated mast cell signaling and degranulation. J Ethnopharmacol 2014; 154:798-806. [PMID: 24832111 DOI: 10.1016/j.jep.2014.05.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 05/05/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Paeonia anomala L. is used in Mongolian traditional medicine to treat various diseases including indigestion, abdominal pain, kidney disorders, inflammation, and female diseases. In this study we examined the effects of Paeonia anomala extract (PAE) and compounds derived from Paeonia anomala on immunoglobulin E (IgE)-mediated type I hypersensitivity responses in vitro. MATERIALS AND METHODS Degranulation assay, reverse transcription PCR, enzyme-lined immunosorbent assays, western blot analyses were performed to measure allergic and proinflammatory mediators in IgE-stimulated rat basophilic leukemia (RBL)-2H3 mast cells treated with or without PAE or gnetin H. RESULTS Seventeen compounds were isolated, and β-hexosaminidase release from IgE-stimulated RBL-2H3 mast cells was measured. Of the seventeen isolated compounds, gnetin H, a resveratrol derivative, significantly inhibited β-hexosaminidase release from RBL-2H3 cells with an IC50 value of 0.3 μM. Notably, Gnetin H reduced β-hexosaminidase release at lower concentrations than resveratrol. Furthermore, PAE and gnetin H inhibited histamine secretion, decreased the production and mRNA expression of tumor necrosis factor-α and interleukin-4 and suppressed translocation of nuclear factor κB. PAE and gnetin H also reduced the expression of cyclooxygenase-2 and production of prostaglandin E2. PAE and gnetin H suppressed the phosphorylation of Syk, protein kinase C (PKC)μ, phospholipase Cγ, and the mitogen-activated protein kinases, c-Jun N-terminal kinase, p38, and extracellular signal-regulated kinase. CONCLUSIONS These results suggest that PAE and its active compound gnetin H could be promising therapeutic agents for allergic disorders.
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Affiliation(s)
- Myungsuk Kim
- Functional Food Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangwon, Korea
| | - Sue Ji Lim
- Functional Food Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangwon, Korea; Department of chemistry, Gangneung-Wonju National University, Gangneung, Gangwon-do 210-702, Korea
| | - Sarangerel Oidovsambuu
- Functional Food Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangwon, Korea
| | - Chu Won Nho
- Functional Food Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangwon, Korea.
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Zhao F, Hu Y, Chong C, Lu M, Chen L, Kan W, Chen L, Liu H. Ardisiphenol D, a resorcinol derivative identified from Ardisia brevicaulis, exerts antitumor effect through inducing apoptosis in human non-small-cell lung cancer A549 cells. Pharm Biol 2014; 52:797-803. [PMID: 24392814 DOI: 10.3109/13880209.2013.869231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
CONTEXT The in vitro and in vivo antitumor activities of ardisiphenol D, a natural product isolated from the roots of Ardisa brevicaulis Diels (Myrsinaceae), have been studied. OBJECTIVE Previously, we have isolated and identified some chemical constituents from this plant. Furthermore, these compounds showed significant inhibition of the proliferation of human pancreatic PANC-1, human lung A549, human gastrointestinal carcinoma SGC 7901, human breast MCF-7, and human prostate PC-3 cancer cells. In the present paper, a major resorcinol derivative called ardisiphenol D was further studied for its antitumor mechanism. MATERIALS AND METHODS MTT assay was used to detect the proliferation of A549 cancer cells. Apoptosis induced by ardisiphenol D was observed by Hoechst 33258 fluorescence staining. Caspase-3 enzyme activity was measured by a commercial caspase-3 enzyme activity detection kit. Protein expression of bax, bcl-2, and caspase-3 was tested by Western blots. In vivo antitumor activity of ardisiphenol D was evaluated by determination of A549 tumor growth in nude mice. RESULTS Ardisiphenol D significantly inhibited the proliferation of A549 cells with an IC50 of 0.997 μM with a 48 h treatment. Hoechst 33258 fluorescence staining results indicated the apoptosis of A549 cells induced by 3.125 μM of ardisiphenol D. About 0.39 and 0.78 μM of ardisiphenol D also potently increased the caspase-3 enzyme activity in 24 h. Furthermore, 0.39-3.125 μM of ardisiphenol D induced the activation of caspase-3 protein and the up-regulation of the ratio of bax/bcl-2 protein expression in A549 cells. After i.p. injection, ardisiphenol D (5 mg/kg) also strongly suppressed the A549 tumor growth in nude mice. DISCUSSION AND CONCLUSION Ardisiphenol D induced apoptosis of A549 cells via activation of caspase-3 and up-regulation of the ratio of bax/bcl-2 protein expression. Ardisiphenol D also strongly suppressed the A549 tumor growth in nude mice and exerted antitumor activity in vivo.
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Affiliation(s)
- Feng Zhao
- School of Pharmacy, Yantai University , Yantai , P.R. China
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29
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Abstract
Resorcinolic lipid contents and homologue compositions in extracts isolated from soft winter, soft spring and hard (durum) wheat grains were evaluated by both instrumental and chromatography means. Resorcinol concentrations determined in wheat were diverse and varied in samples harvested within two consecutive vegetative years, whereas their homologue profiles were found to be rather invariable. The predominant alkylresorcinols identified in wheat grains were saturated 1,3-dihydroxy-5-n-heneicosylbenzene and 1,3-dihydroxy-5-nnonadecylbenzene. 1,3-Dihydroxy-5-n-heptadecylbenzene and 1,3-dihydroxy-5-n-tricosylbenzene were also determined, whereas 1,3-dihydroxy-5-n-pentadecylbenzene and 1,3-dihydroxy- 5-n-pentacosylbenzene were present in these extracts only in spurious amounts. Furthermore, our results show that alk(en)ylresorcinols may be useful as chemotaxonomic markers for a distinction between soft and hard wheat plants. Cluster analysis with Ward’s amalgamation algorithm and five different distance linkage types clearly discriminated particular wheats into species- and cultivar-specific clusters, whereas the use of principal component analysis allowed us to specify, which of the variables analysed were decisive. This approach may be useful for both plant breeders and taxonomists to classify wheat species/ cultivars.
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Affiliation(s)
- Robert Zarnowski
- Department of Agricultural Microbiology, Agricultural University, Wroclaw, Poland.
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30
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Khan S, Kazi TG, Soylak M. Rapid ionic liquid-based ultrasound assisted dual magnetic microextraction to preconcentrate and separate cadmium-4-(2-thiazolylazo)-resorcinol complex from environmental and biological samples. Spectrochim Acta A Mol Biomol Spectrosc 2014; 123:194-199. [PMID: 24398463 DOI: 10.1016/j.saa.2013.12.065] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 11/28/2013] [Accepted: 12/08/2013] [Indexed: 06/03/2023]
Abstract
A rapid and innovative microextraction technique named as, ionic liquid-based ultrasound-assisted dual magnetic microextraction (IL-UA-DMME) was developed for the preconcentration and extraction of trace cadmium from environmental and biological samples, prior to analyzed by flame atomic absorption spectrometry (FAAS). The proposed method has many obvious advantages, including evading the use of organic solvents and achieved high extraction yields by the combination of dispersive liquid-liquid microextraction (DLLME) and magnetic mediated-solid phase extraction (MM-SPE). In this approach ionic liquid (IL) 1-butyl-3-methylimidazolium hexafluorophosphate [C4mim][PF6] play an important role to extract the cadmium-4-(2-thiazolylazo)-resorcinol (Cd-TAR) complex from acid digested sample solutions and ultrasonic irradiation was applied to assist emulsification. After then, dispersed small amount of Fe3O4 magnetic nanoparticles (MNPs) in sample solutions to salvaged the IL and complete phase separation was attained. Some analytical parameters that influencing the efficiency of proposed (IL-UA-DMME) method, such as pH, volume of IL, ligand concentration, ultra-sonication time, amount of Fe3O4 MNPs, sample volume and matrix effect were optimized. Limit of detection (LOD) and enrichment factor (EF) of the method under optimal experimental conditions were found to be 0.40μgL(-1) and 100, respectively. The relative standard deviation (RSD) of 50μgL(-1) Cd was 4.29%. The validity and accuracy of proposed method, was assessed to analyzed certified reference materials of fortified lake water TMDA-54.4, SPS-WW2 waste water, spinach leaves 1570a and also checked by standard addition method. The obtained values showed good agreement with the certified values and sufficiently high recovery were found in the range of 98.1-101% for Cd. The proposed method was facile, rapid and successfully applied for the determination of Cd in environmental and different biological samples.
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Affiliation(s)
- Sumaira Khan
- Erciyes University, Fen Faculty, Department of Chemistry, 38039 Kayseri, Turkey; Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan.
| | - Tasneem Gul Kazi
- Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan.
| | - Mustafa Soylak
- Erciyes University, Fen Faculty, Department of Chemistry, 38039 Kayseri, Turkey.
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31
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Xu J, Jiang CS, Zhang ZL, Ma WQ, Guo YW. Recent progress regarding the bioactivities, biosynthesis and synthesis of naturally occurring resorcinolic macrolides. Acta Pharmacol Sin 2014; 35:316-30. [PMID: 24464049 PMCID: PMC4647893 DOI: 10.1038/aps.2013.155] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Accepted: 09/25/2013] [Indexed: 12/15/2022] Open
Abstract
Macrolides, which comprise a family of lactones with different ring sizes, belong to the polyketide class of natural products. Resorcinolic macrolides, an important subgroup, possess interesting structures and exhibit a wide variety of bioactivities, such as anti-tumor, anti-bacteria, and anti-malaria activities, etc. This review summarizes progress in isolation, bioactivity studies, biosynthesis, and representative chemical syntheses of this group of macrolides in recent decades, encompassing 63 naturally occurring macrolides published in 120 articles.
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Affiliation(s)
- Jing Xu
- College of Science, China University of Petroleum, Qingdao 266580, China
- Weifang Biomedical Innovation and Entrepreneurship Service Center, Weifang 261205, China
| | - Cheng-shi Jiang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Zai-long Zhang
- College of Science, China University of Petroleum, Qingdao 266580, China
| | - Wen-quan Ma
- Weifang Biomedical Innovation and Entrepreneurship Service Center, Weifang 261205, China
| | - Yue-wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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Xuan QC, Huang R, Chen YW, Miao CP, Ma KX, Wang T, Wu SH. Cyclonerol derivatives from Trichoderma longibrachiatum YM311505. Nat Prod Commun 2014; 9:313-314. [PMID: 24689203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
A new sesquiterpene, 10,11-dihydrocyclonerotriol (1), together with two known compounds, catenioblin C (2) and sohirnone A (3), were isolated from Trichoderma longibrachiatum YM311505, an endophytic fungus of Azadirachta indica. Their structures were characterized and identified by spectral analysis. Compounds 1-3 exhibited antifungal activities against Pyricularia oryzae and Candida albicans.
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Lay MM, Karsani SA, Malek SNA. 1-(2,6-dihydroxy-4-methoxyphenyl)-2-(4-hydroxyphenyl) ethanone-induced cell cycle arrest in G₁/G₀ in HT-29 cells human colon adenocarcinoma cells. Int J Mol Sci 2014; 15:468-83. [PMID: 24451128 PMCID: PMC3907820 DOI: 10.3390/ijms15010468] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 11/07/2013] [Accepted: 11/28/2013] [Indexed: 11/17/2022] Open
Abstract
1-(2,6-Dihydroxy-4-methoxyphenyl)-2-(4-hydroxyphenyl) ethanone (DMHE) was isolated from the ethyl acetate fraction of Phaleria macrocarpa (Scheff.) Boerl fruits and the structure confirmed by GC-MS (gas chromatography-mass spectrometry) and NMR (nuclear magnetic resonance) analysis. This compound was tested on the HT-29 human colon adenocarcinoma cell line using MTT (method of transcriptional and translational) cell proliferation assay. The results of MTT assay showed that DMHE exhibited good cytotoxic effect on HT-29 cells in a dose- and time-dependent manner but no cytotoxic effect on the MRC-5 cell line after 72 h incubation. Morphological features of apoptotic cells upon treatment by DMHE, e.g., cell shrinkage and membrane blebbing, were examined by an inverted and phase microscope. Other features, such as chromatin condension and nuclear fragmentation were studied using acridine orange and propidium iodide staining under the fluorescence microscope. Future evidence of apoptosis/necrosis was provided by result fromannexin V-FITC/PI (fluorescein-isothiocyanate/propidium iodide) staining revealed the percentage of early apoptotic, late apoptotic, necrotic and live cells in a dose- and time-dependent manner using flow cytometry. Cell cycle analysis showed G0/G1 arrest in a time-dependent manner. A western blot analysis indicated that cell death might be associated with the up-regulation of the pro-apoptotic proteins Bax PUMA. However, the anit-apotptic proteins Bcl-2, Bcl-xL, and Mcl-1 were also found to increase in a time-dependent manner. The expression of the pro-apoptotic protein Bak was not observed.
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Affiliation(s)
- Ma Ma Lay
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Saiful Anuar Karsani
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Sri Nurestri Abd Malek
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
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Luis A, Cruz C, Duarte AP, Domingues F. An alkenylresorcinol derivative from Hakea sericea fruits and their antimicrobial activity. Nat Prod Commun 2013; 8:1459-1462. [PMID: 24354201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
Hakea sericea has been introduced to Portugal for ornamental purposes. The phytochemical composition and the antioxidant, antibacterial, antibiofilm and cytotoxic properties of this shrub species have been previously reported. The present work describes the bioassay-guided fractionation of the crude methanolic extract of H. sericea fruits and the isolation of 9-(3,5-dihydroxy-4-methylphenyl)nona-3(Z)-enoic acid. The structure of this new compound was established by one- and two-dimensional NMR and IR spectroscopy, and high-resolution mass spectrometry. The antibacterial properties of the new alkenylresorcinolwere studied by determining its MIC values against several strains of Gram-positive and Gram-negative bacteria using the resazurin microtiter assay. The new alkenylresorcinol inhibited the growth of Enterococcus faecalis, Listeria monocytogenes and Bacillus cereus with MIC values of 0.31, 0.02 and 0.16 mg/mL, respectively. Good MIC values were obtained against Staphylococcus aureus strains (0.005 - 0.16 mg/mL), including the clinical isolates (SA 01/10, SA 02/10 and SA 03/10) and MRSA strains.
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Affiliation(s)
- Angelo Luis
- CICS-UBI-Health Sciences Research Centre, University ofBeira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Carla Cruz
- CICS-UBI-Health Sciences Research Centre, University ofBeira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Ana Paula Duarte
- CICS-UBI-Health Sciences Research Centre, University ofBeira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Fernanda Domingues
- CICS-UBI-Health Sciences Research Centre, University ofBeira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
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D'Abrosca B, Buommino E, D'Angelo G, Coretti L, Scognamiglio M, Severino V, Pacifico S, Donnarumma G, Fiorentino A. Spectroscopic identification and anti-biofilm properties of polar metabolites from the medicinal plant Helichrysum italicum against Pseudomonas aeruginosa. Bioorg Med Chem 2013; 21:7038-46. [PMID: 24094434 DOI: 10.1016/j.bmc.2013.09.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 09/05/2013] [Accepted: 09/06/2013] [Indexed: 12/17/2022]
Abstract
Two new acylated styrylpyrones, one 5-methoxy-1(3H)-isobenzofuranone glucoside and a hydroxymethyl-orcinol derivative, along with sixteen known aromatic metabolites, including lignans, quinic acid derivatives low-molecular weight phenol glucosides, have been isolated from the methanol extract of Helichrysum italicum, a medicinal plant typical of the Mediterranean vegetation. The structures of these compounds have been elucidated on the basis of extensive 2D-NMR spectroscopic analyses, including COSY, TOCSY, HSQC, CIGAR-HMBC, H2BC and HSQC-TOCSY, along with Q-TOF HRMS(2) analysis. Selected compounds were evaluated for their anti-biofilm properties against Pseudomonas aeruginosa.
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Affiliation(s)
- Brigida D'Abrosca
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, Second University of Naples, via Vivaldi 43, 81100 Caserta, Italy.
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Zhang HJ, Zhu DQ, Sun LY, Ge ZH, Xu JJ, Feng SC. [Study on the chemical constituents of two lichen plants from Meng Mountain]. Zhong Yao Cai 2013; 36:1454-1456. [PMID: 24620693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To investigate the chemical constituents of the lichen plants Parmelia tinctorum and Parmelia nimandairana collected from Meng Mountain in Shandong province. METHODS Various chromatographic techniques were used to isolate and purify the constituents and their structures were elucidated by means of spectral evidence and physiochemical properties. RESULTS Four compounds were isolated from Parmelia tinctorum and identified as: lecanoric acid (I), evernic acid (II), ethyl orsellinate (III) and 3,5-dihydroxytoluene (IV). Two compounds were isolated from Parmelia nimandairana and identified as: usnic acid (V) and salazinic acid (VI). CONCLUSION Compounds V and VI are isolated from Parmelia nimandairana for the first time.
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Gao J, Radwan MM, León F, Dale OR, Husni AS, Wu Y, Lupien S, Wang X, Manly SP, Hill RA, Dugan FM, Cutler HG, Cutler SJ. Neocosmospora sp.-derived resorcylic acid lactones with in vitro binding affinity for human opioid and cannabinoid receptors. J Nat Prod 2013; 76:824-8. [PMID: 23659286 PMCID: PMC3723356 DOI: 10.1021/np300653d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Bioassay-guided fractionation of a fungus Neocosmospora sp. (UM-031509) resulted in the isolation of three new resorcylic acid lactones, neocosmosin A (2), neocosmosin B (3), and neocosmosin C (4). Three known resorcylic acid lactones, monocillin IV (1), monocillin II (5), and radicicol (6), were also isolated and identified. The structures of these compounds were established on the basis of extensive 1D and 2D NMR spectroscopic analysis, mass spectrometric (ESIMS) data, and X-ray crystallography. Compounds 4-6 show good binding affinity for the human opioid receptors. These findings have important implications for evaluating the potential psychoactive effects with this class of compounds.
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Affiliation(s)
- Jiangtao Gao
- Department of Medicinal Chemistry, The University of Mississippi, University, MS 38677
| | - Mohamed M. Radwan
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, MS 38677
| | - Francisco León
- Department of Medicinal Chemistry, The University of Mississippi, University, MS 38677
| | - Olivia Reed Dale
- Department of Medicinal Chemistry, The University of Mississippi, University, MS 38677
| | - Afeef S. Husni
- Department of Medicinal Chemistry, The University of Mississippi, University, MS 38677
| | - Yunshan Wu
- Department of Medicinal Chemistry, The University of Mississippi, University, MS 38677
| | - Shari Lupien
- USDA-ARS Western Regional Plant Introduction Station, Washington State University, Pullman, WA 99164, USA
| | - Xiaoning Wang
- Department of Medicinal Chemistry, The University of Mississippi, University, MS 38677
| | - Susan P. Manly
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, MS 38677
| | - Robert A. Hill
- National Centre for Advanced Bio-Protection Technologies, Lincoln University, Lincoln 7647, New Zealand
| | - Frank M. Dugan
- USDA-ARS Western Regional Plant Introduction Station, Washington State University, Pullman, WA 99164, USA
| | - Horace G. Cutler
- Natural Products Discovery Group, College of Pharmacy and Health Sciences, Mercer University, Atlanta, Georgia, 30341
| | - Stephen J. Cutler
- Department of Medicinal Chemistry, The University of Mississippi, University, MS 38677
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, MS 38677
- To whom correspondence should be addressed. Tel: (1)-662-915–7101. Fax: (1)-662-915 –5638.
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Starks CM, Williams RB, Norman VL, Lawrence JA, O'Neil-Johnson M, Eldridge GR. Phenylpropanoids from Phragmipedium calurum and their antiproliferative activity. Phytochemistry 2012; 82:172-175. [PMID: 22805176 PMCID: PMC3425716 DOI: 10.1016/j.phytochem.2012.06.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 04/17/2012] [Accepted: 06/19/2012] [Indexed: 06/01/2023]
Abstract
Seven stilbenes and one alkylresorcinol were isolated from the orchid Phragmipedium calurum during a screen for anticancer compounds. They were evaluated for antiproliferative activity against multiple human cancer cell lines, and two displayed moderate activity against several cell lines.
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Affiliation(s)
- Courtney M Starks
- Lead Discovery and Rapid Structure Elucidation Group, Sequoia Sciences, Inc., 1912 Innerbelt Business Center Drive, St. Louis, MO 63114, United States.
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Al-Mekhlafi NA, Shaari K, Abas F, Kneer R, Jeyaraj EJ, Stanslas J, Yamamoto N, Honda T, Lajis NH. Alkenylresorcinols and cytotoxic activity of the constituents isolated from Labisia pumila. Phytochemistry 2012; 80:42-9. [PMID: 22633846 DOI: 10.1016/j.phytochem.2012.04.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Revised: 02/20/2012] [Accepted: 04/18/2012] [Indexed: 05/26/2023]
Abstract
Phytochemical investigation on the leaves of Labisia pumila (Myrsinaceae), an important medicinal herb in Malaysia, has led to the isolation of 1-O-methyl-6-acetoxy-5-(pentadec-10Z-enyl)resorcinol (1), labisiaquinone A (2) and labisiaquinone B (3). Along with these, 16 known compounds including 1-O-methyl-6-acetoxy-5-pentadecylresorcinol (4), 5-(pentadec-10Z-enyl)resorcinol (5), 5-(pentadecyl)resorcinol (6), (-)-loliolide (7), stigmasterol (8), 4-hydroxyphenylethylamine (9), 3,4,5-trihydroxybenzoic acid (10), 3,4-dihydroxybenzoic acid (11), (+)-catechin (12), (-)-epicatechin (13), kaempferol-3-O-α-rhamnopyranosyl-7-O-β-glycopyranoside (14), kaempferol-4'-O-β-glycopyranoside (15), quercetin-3-O-α-rhamnopyranoside (16), kaempferol-3-O-α-rhamnopyranoside (17), (9Z,12Z)-octadeca-9,12-dienoic acid (18) and stigmasterol-3-O-β-glycopyranoside (19) were also isolated. The structures of these compounds were established on the basis of 1D and 2D NMR spectroscopy techniques (¹H, ¹³C, COSY, HSQC, NOESY and HMBC experiments), mass spectrometry and chemical derivatization. Among the constituents tested 1 and 4 exhibited strongest cytotoxic activity against the PC3, HCT116 and MCF-7 cell lines (IC₅₀ values ≤ 10 μM), and they showed selectivity towards the first two-cell lines relative to the last one.
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Affiliation(s)
- Nabil Ali Al-Mekhlafi
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Malaysia
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40
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Holt MD, Moreau RA, DerMarderosian A, McKeown N, Jacques PF. Accelerated solvent extraction of alkylresorcinols in food products containing uncooked and cooked wheat. J Agric Food Chem 2012; 60:4799-4802. [PMID: 22530555 DOI: 10.1021/jf3001422] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This research focuses on the overall extraction process of alkylresorcinols (ARs) from uncooked grains and baked products that have been processed with wheat, corn, rice, and white flour. Previously established extraction methods developed by Ross and colleagues, as well as a semiautomated method involving accelerated solvent extraction (ASE), were applied to extract ARs within freshly ground samples. For extraction of alkylresorcinols, nonpolar solvents such as ethyl acetate have been recommended for the extraction of uncooked foods, and polar solvents such as 1-propanol:water (3:1 v/v) have been recommended for the extraction of baked foods that contain rye, wheat, or other starch-rich grains. A comparison of AR extraction methods has been investigated with the application of gas chromatography and a flame ionization detector (GC-FID) to quantify the AR content. The goal of this research was to compare the rapid accelerated solvent extraction of the alkylresorcinols (ASE-AR) method to the previous manual AR extraction methods. Results for this study as well as the investigation of the overall efficiency of ASE-AR extraction with the use of a spiking study indicated that it can be comparable to current extraction methods but with less time required. Furthermore, the extraction time for ASE (approximately 40 min) is much more convenient and less tedious and time-consuming than previously established methods, which range from 5 h for processed foods to 24 h for raw grains.
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Affiliation(s)
- Monte D Holt
- Department of Chemistry & Biochemistry, Pharmacognosy Program, University of the Sciences in Philadelphia, Philadelphia, Pennsylvania 19104, USA
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41
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Guo J, Li ZL, Wang AL, Liu XQ, Wang J, Guo X, Jing YK, Hua HM. Three new phenolic compounds from the lichen Thamnolia vermicularis and their antiproliferative effects in prostate cancer cells. Planta Med 2011; 77:2042-2046. [PMID: 21796577 DOI: 10.1055/s-0031-1280096] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Three new phenolic compounds, thamnoliadepsides A (1), B (2), and thamnolic acid A (3), and seven known compounds, everninic acid (4), baeomycesic acid (5), β-orcinol (6), β-resorcylic acid (7), ethyl orsellinate (8), squamatic acid (9), and vermicularin (10), were isolated from the lichen Thamnolia vermicularis (Sw.) Ach. ex Schaerer. Their structures were determined based on spectroscopic analysis, including 2D-NMR experiments and HR-MS techniques. Compound 1 inhibited growth of prostate cancer cells and bonded to G-quadruplex DNA based on NMR determination.
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Affiliation(s)
- Jia Guo
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, P. R. China
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Chong YM, Yin WF, Ho CY, Mustafa MR, Hadi AHA, Awang K, Narrima P, Koh CL, Appleton DR, Chan KG. Malabaricone C from Myristica cinnamomea exhibits anti-quorum sensing activity. J Nat Prod 2011; 74:2261-2264. [PMID: 21910441 DOI: 10.1021/np100872k] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A methanol-soluble extract of the bark of Myristica cinnamomea was found to exhibit anti-quorum sensing activity, and subsequent bioassay-guided isolation led to the identification of the active compound malabaricone C (1). Compound 1 inhibited violacein production by Chromobacterium violaceum CV026 when grown in the presence of a cognate signaling molecule, N-3-oxohexanoyl-homoserine lactone. Furthermore, 1 inhibited the quorum sensing-regulated pyocyanin production and biofilm formation in Pseudomonas aeruginosa PAO1. These results suggest that the anti-quorum sensing activity of 1 and related molecules should be investigated further.
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Affiliation(s)
- Yee Meng Chong
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
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43
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Absalan G, Asadi M, Kamran S, Sheikhian L, Goltz DM. Removal of reactive red-120 and 4-(2-pyridylazo) resorcinol from aqueous samples by Fe3O4 magnetic nanoparticles using ionic liquid as modifier. J Hazard Mater 2011; 192:476-484. [PMID: 21645968 DOI: 10.1016/j.jhazmat.2011.05.046] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Revised: 04/26/2011] [Accepted: 05/15/2011] [Indexed: 05/30/2023]
Abstract
The nanoparticles of Fe(3)O(4) as well as the binary nanoparticles of ionic liquid and Fe(3)O(4) (IL-Fe(3)O(4)) were synthesized for removal of reactive red 120 (RR-120) and 4-(2-pyridylazo) resorcinol (PAR) as model azo dyes from aqueous solutions. The mean size and the surface morphology of the nanoparticles were characterized by TEM, DLS, XRD, FTIR and TGA techniques. Adsorption of RR-120 and PAR was studied in a batch reactor at different experimental conditions such as nanoparticle dosage, dye concentration, pH of the solution, ionic strength, and contact time. Experimental results indicated that the IL-Fe(3)O(4) nanoparticles had removed more than 98% of both dyes under the optimum operational conditions of a dosage of 60mg, a pH of 2.5, and a contact time of 2min when initial dyes concentrations of 10-200mg L(-1) were used. The maximum adsorption capacity of IL-Fe(3)O(4) was 166.67 and 49.26mg g(-1) for RR-120 and PAR, respectively. The isotherm experiments revealed that the Langmuir model attained better fits to the equilibrium data than the Freundlich model. The Langmuir adsorption constants were 5.99 and 3.62L mg(-1) for adsorptions of RR-120 and PAR, respectively. Both adsorption processes were endothermic and dyes could be desorbed from IL-Fe(3)O(4) by using a mixed NaCl-acetone solution and adsorbent was reusable.
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Affiliation(s)
- Ghodratollah Absalan
- Professor Masoumi Laboratory, Department of Chemistry, College of Science, Shiraz University, Hafeziyeh, Fars, 71454 Shiraz, Iran.
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44
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Chen LP, Zhao F, Wang Y, Zhao LL, Li QP, Liu HW. Antitumor effect of resorcinol derivatives from the roots of Ardisia brevicaulis by inducing apoptosis. J Asian Nat Prod Res 2011; 13:734-743. [PMID: 21751842 DOI: 10.1080/10286020.2011.587412] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Two new resorcinol derivatives 2-methoxy-4-hydroxy-6-(8Z-pentadecenyl)-benzene-1-O-acetate (1) and 2-methoxy-4-hydroxy-6-pentadecyl-benzene-1-O-acetate (2), together with four known compounds 2-methoxy-4-hydroxy-6-tridecyl-benzene-1-O-acetate (ardisiphenol D, 3), 5-(8Z-pentadecenyl)resorcinol (4), 5-pentadecylresorcinol (5), 5-tridecylresorcinol (6), have been isolated from the roots of Ardisia brevicaulis in our previous work. In the present study, the inhibitory effect of 1-6 on the proliferation of human pancreatic PANC-1, human lung A549, human gastrointestinal carcinoma SGC 7901, human breast MCF-7, and human prostate PC-3 cancer cells was evaluated by the methyl thiazolyl tetrazolium method. Compounds 1-6 all showed inhibitory activities against the proliferation of PANC-1, A549, SGC7901, MCF-7, and PC-3 cancer cells. Compound 3, the most active agent and the main constituent with the highest yield, induced apoptosis of PANC-1 cells (the most sensitive cell line among the cell lines screened) via the activation of caspase-3 and caspase-9, up-regulation of the ratio of bax/bcl-2 protein expression.
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Affiliation(s)
- Li-Ping Chen
- School of Pharmacy, Yantai University, Yantai, China
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45
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Aghav RM, Kumar S, Mukherjee SN. Artificial neural network modeling in competitive adsorption of phenol and resorcinol from water environment using some carbonaceous adsorbents. J Hazard Mater 2011; 188:67-77. [PMID: 21316853 DOI: 10.1016/j.jhazmat.2011.01.067] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2010] [Revised: 01/14/2011] [Accepted: 01/14/2011] [Indexed: 05/30/2023]
Abstract
This paper illustrates the application of artificial neural network (ANN) for prediction of performances in competitive adsorption of phenol and resorcinol from aqueous solution by conventional and low cost carbonaceous adsorbent materials, such as activated carbon (AC), wood charcoal (WC) and rice husk ash (RHA). The three layer's feed forward neural network with back propagation algorithm in MATLAB environment was used for estimation of removal efficiencies of phenol and resorcinol in bi-solute water environment based on 29 sets of laboratory batch study results. The input parameters used for training of the neural network include amount of adsorbent (g/L), initial concentrations of phenol (mg/L) and resorcinol (mg/L), contact time (h), and pH. The removal efficiencies of phenol and resorcinol were considered as an output of the neural network. The performances of the developed ANN models were also measured using statistical parameters, such as mean error, mean square error, root mean square error, and linear regression. The comparison of the removal efficiencies of pollutants using ANN model and experimental results showed that ANN modeling in competitive adsorption of phenolic compounds reasonably corroborated with the experimental results.
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Affiliation(s)
- R M Aghav
- Civil Engineering Department, Jadavpur University, Kolkata 700 032, West Bengal, India
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Chang CP, Chang HS, Peng CF, Lee SJ, Chen IS. Antitubercular resorcinol analogs and benzenoid C-glucoside from the roots of Ardisia cornudentata. Planta Med 2011; 77:60-65. [PMID: 20607650 DOI: 10.1055/s-0030-1250094] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Bioassay-guided fractionation of the roots of Ardisia cornudentata Mez (Myrsinaceae) led to the isolation of three new compounds, 3-methoxy-2-methyl-5-pentylphenol (1), 3-methoxy-2-methyl-5-(1'-ketopentyl)phenol (2), and cornudoside (3), together with twenty-six known compounds. Their structures were elucidated by analysis of spectroscopic data. Thirteen of these isolates, 1, 2, 4- 6, 9- 15, and 21 showed antitubercular activities against Mycobacterium tuberculosis H37R (V) IN VITRO, with MIC values of 2.5-60 µg/mL. Two alkyl benzoquinones, ardisianone (7) and cornudentanone ( 8), were reported for their selective cytotoxic activity against the NCI-H460 cancer cell line (IC (50) values of 2.3, 2.5 µg/mL).
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Affiliation(s)
- Chun-Po Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
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Zhuang JX, Hu YH, Yang MH, Liu FJ, Qiu L, Zhou XW, Chen QX. Irreversible competitive inhibitory kinetics of cardol triene on mushroom tyrosinase. J Agric Food Chem 2010; 58:12993-12998. [PMID: 21121650 DOI: 10.1021/jf103723k] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Cardol triene was first purified from cashew (Anacardium occidentale L.) nut shell liquid and identified by gas chromatography coupled to mass spectroscopy and nuclear magnetic resonance. The effects of this compound on the activity of mushroom tyrosinase were studied. The results of the kinetic study showed that cardol triene was a potent irreversible competitive inhibitor and the inactivation was of the complexing type. Two molecules of cardol triene could bind to one molecule of tyrosinase and lead to the complete loss of its catalytic activity. The microscopic rate constants were determined for the reaction of cardol triene with the enzyme. The anti-tyrosinase kinetic research of this study provides a comprehensive understanding of inhibitory mechanisms of resorcinolic lipids and is beneficial for the future design of novel tyrosinase inhibitors.
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Affiliation(s)
- Jiang-Xing Zhuang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences,Xiamen University, Xiamen 361005, China
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Abstract
Two new resorcinols, 1-(5-acetyl-2,4-dihydroxyphenyl)-3-methylbutan-1-one (1) and 1-(5-acetyl-2-hydroxy-4-methoxyphenyl)-3-methylbutan-1-one (2), have been isolated from the brown algae Sargassum thunbergii (Mert.) O'Kuntze. Their structures were elucidated on the basis of spectroscopic methods.
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Affiliation(s)
- Yang-Peng Cai
- College of Food Science and Technology, Ocean University of China, Qingdao, China
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Tanaka H, Sudo M, Kawamura T, Sato M, Yamaguchi R, Fukai T, Sakai E, Tanaka N. Antibacterial constituents from the roots of Erythrina herbacea against methicillin-resistant Staphylococcus aureus. Planta Med 2010; 76:916-919. [PMID: 20108177 DOI: 10.1055/s-0029-1240849] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Two new compounds, erybacin A (1) and erybacin B (2), together with 10 known compounds (3- 12), were isolated from the roots of Erythrina herbacea. Their structures were established on the basis of spectroscopic analyses. Erybacin A is a rare, naturally occurring 1-hydroxy-1,3-diphenylpropan-2-one derivative. The isolated compounds were evaluated for their antibacterial activity against 13 strains of methicillin-resistant Staphylococcus aureus (MRSA). The new compound 2 showed a potent bactericidal activity against MRSA.
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Affiliation(s)
- Hitoshi Tanaka
- Faculty of Pharmacy, Meijo University, Yagoto, Tempaku-ku, Nagoya, Japan.
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Jumpathong J, Abdalla MA, Lumyong S, Laatsch H. Stemphol galactoside, a new stemphol derivative isolated from the tropical endophytic fungus Gaeumannomyces amomi. Nat Prod Commun 2010; 5:567-570. [PMID: 20433074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
A new stemphol derivative, stemphol 1-O-beta-D-galactopyranoside (1b), together with three known metabolites, stemphol (1a), indole-3-carboxylic acid, and kojic acid, has been isolated from the ethyl acetate extract of cultures of Gaeumannomyces amomi BCC4066, an endophytic fungus found on healthy parts of ginger (Alpinia malaccensis; Thai name Kha-pa). The structure of 1b was established via spectroscopic methods, including 2D NMR measurements and GC/MS experiments.
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Affiliation(s)
- Juangjun Jumpathong
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
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