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Luo RL, Li FQ, Zhuang HD, Jiang T, Wang LQ. A new C 22 polyacetylene and seven isoprenylated pterocarpans from Erythrina subumbrans. J Asian Nat Prod Res 2024; 26:394-398. [PMID: 37342004 DOI: 10.1080/10286020.2023.2223128] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 03/21/2023] [Accepted: 06/05/2023] [Indexed: 06/22/2023]
Abstract
A new C22 polyacetylene, erysectol A (1), and seven isoprenylated pterocarpans, phaseollin (2), phaseollidin (3), cristacarpin (4), (3'R)-erythribyssin D/(3'S)-erythribyssin D (5a/5b) and dolichina A/dolichina B (6a/6b) were isolated from the twigs and leaves of Erythrina subumbrans. Their structures were determined based on their NMR spectral data. Except for 2-4, all the other compounds were isolated from this plant for the first time. Erysectol A was the first reported C22 polyacetylene from plants. Polyacetylene was isolated from Erythrina plants for the first time.
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Affiliation(s)
- Rui-Long Luo
- School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Feng-Qiu Li
- School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Hong-Dan Zhuang
- School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Ting Jiang
- School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Li-Qin Wang
- School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
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2
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Meng Q, Moinuddin SGA, Celoy RM, Smith CA, Young RP, Costa MA, Freeman RA, Fukaya M, Kim DN, Cort JR, Hawes MC, van Etten HD, Pandey P, Chittiboyina AG, Ferreira D, Davin LB, Lewis NG. Dirigent isoflavene-forming PsPTS2: 3D structure, stereochemical, and kinetic characterization comparison with pterocarpan-forming PsPTS1 homolog in pea. J Biol Chem 2024; 300:105647. [PMID: 38219818 PMCID: PMC10882141 DOI: 10.1016/j.jbc.2024.105647] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 08/03/2023] [Revised: 12/21/2023] [Accepted: 01/05/2024] [Indexed: 01/16/2024] Open
Abstract
Pea phytoalexins (-)-maackiain and (+)-pisatin have opposite C6a/C11a configurations, but biosynthetically how this occurs is unknown. Pea dirigent-protein (DP) PsPTS2 generates 7,2'-dihydroxy-4',5'-methylenedioxyisoflav-3-ene (DMDIF), and stereoselectivity toward four possible 7,2'-dihydroxy-4',5'-methylenedioxyisoflavan-4-ol (DMDI) stereoisomers was investigated. Stereoisomer configurations were determined using NMR spectroscopy, electronic circular dichroism, and molecular orbital analyses. PsPTS2 efficiently converted cis-(3R,4R)-DMDI into DMDIF 20-fold faster than the trans-(3R,4S)-isomer. The 4R-configured substrate's near β-axial OH orientation significantly enhanced its leaving group abilities in generating A-ring mono-quinone methide (QM), whereas 4S-isomer's α-equatorial-OH was a poorer leaving group. Docking simulations indicated that the 4R-configured β-axial OH was closest to Asp51, whereas 4S-isomer's α-equatorial OH was further away. Neither cis-(3S,4S)- nor trans-(3S,4R)-DMDIs were substrates, even with the former having C3/C4 stereochemistry as in (+)-pisatin. PsPTS2 used cis-(3R,4R)-7,2'-dihydroxy-4'-methoxyisoflavan-4-ol [cis-(3R,4R)-DMI] and C3/C4 stereoisomers to give 2',7-dihydroxy-4'-methoxyisoflav-3-ene (DMIF). DP homologs may exist in licorice (Glycyrrhiza pallidiflora) and tree legume Bolusanthus speciosus, as DMIF occurs in both species. PsPTS1 utilized cis-(3R,4R)-DMDI to give (-)-maackiain 2200-fold more efficiently than with cis-(3R,4R)-DMI to give (-)-medicarpin. PsPTS1 also slowly converted trans-(3S,4R)-DMDI into (+)-maackiain, reflecting the better 4R configured OH leaving group. PsPTS2 and PsPTS1 provisionally provide the means to enable differing C6a and C11a configurations in (+)-pisatin and (-)-maackiain, via identical DP-engendered mono-QM bound intermediate generation, which PsPTS2 either re-aromatizes to give DMDIF or PsPTS1 intramolecularly cyclizes to afford (-)-maackiain. Substrate docking simulations using PsPTS2 and PsPTS1 indicate cis-(3R,4R)-DMDI binds in the anti-configuration in PsPTS2 to afford DMDIF, and the syn-configuration in PsPTS1 to give maackiain.
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Affiliation(s)
- Qingyan Meng
- Institute of Biological Chemistry, Washington State University, Pullman, Washington, USA
| | - Syed G A Moinuddin
- Institute of Biological Chemistry, Washington State University, Pullman, Washington, USA
| | - Rhodesia M Celoy
- School of Plant Sciences, University of Arizona, Tucson, Arizona, USA
| | - Clyde A Smith
- Stanford Synchrotron Radiation Lightsource, Stanford University, Menlo Park, California, USA
| | - Robert P Young
- Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington, USA
| | - Michael A Costa
- Institute of Biological Chemistry, Washington State University, Pullman, Washington, USA
| | - Rachel A Freeman
- Institute of Biological Chemistry, Washington State University, Pullman, Washington, USA
| | - Masashi Fukaya
- Institute of Biological Chemistry, Washington State University, Pullman, Washington, USA
| | - Doo Nam Kim
- Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington, USA
| | - John R Cort
- Institute of Biological Chemistry, Washington State University, Pullman, Washington, USA; Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington, USA
| | - Martha C Hawes
- School of Plant Sciences, University of Arizona, Tucson, Arizona, USA
| | - Hans D van Etten
- School of Plant Sciences, University of Arizona, Tucson, Arizona, USA
| | - Pankaj Pandey
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
| | - Amar G Chittiboyina
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
| | - Daneel Ferreira
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA; Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, Mississippi, USA
| | - Laurence B Davin
- Institute of Biological Chemistry, Washington State University, Pullman, Washington, USA
| | - Norman G Lewis
- Institute of Biological Chemistry, Washington State University, Pullman, Washington, USA.
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3
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Nassief SM, Amer ME, Shawky E, Sishtla K, Mas-Claret E, Muniyandi A, Corson TW, Mulholland DA, El-Masry S. Antiangiogenic Pterocarpan and Flavonoid Constituents of Erythrina lysistemon. J Nat Prod 2023; 86:759-766. [PMID: 36938984 DOI: 10.1021/acs.jnatprod.2c00909] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The roots of Erythrina lysistemon, growing in Egypt, yielded 24 flavonoid compounds, including 17 pterocarpans, two isoflavanones, one flavanone, two isoflavans, one 2-arylbenzofuran, and an isoflava-3-ene. Nine pterocarpans have not been reported previously (7-9, 11-14, 19, and 20), and 11 are reported here for the first time from this species. Structures were established using HRESIMS, NMR, and circular dichroism techniques. Selected compounds were tested for their ability to block the growth of human retinal endothelial cells and antiangiogenic activity in vitro. The isoflavonoids 5 and 6, and the pterocarpans 1, 2, 4, 20, and 22 demonstrated selective antiproliferative activities on endothelial cells compared to a nonendothelial cell type, with concentration-dependent antiangiogenic effects in vitro against HRECs, a cell type relevant to neovascular eye diseases.
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Affiliation(s)
- Sarah M Nassief
- Department of Pharmacognosy, Faculty of Pharmacy, University of Alexandria, Alkhartoom Square, Alexandria 21521, Egypt
| | - Masouda E Amer
- Department of Pharmacognosy, Faculty of Pharmacy, University of Alexandria, Alkhartoom Square, Alexandria 21521, Egypt
| | - Eman Shawky
- Department of Pharmacognosy, Faculty of Pharmacy, University of Alexandria, Alkhartoom Square, Alexandria 21521, Egypt
| | - Kamakshi Sishtla
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, 1160 W. Michigan St., Indianapolis, Indiana 46202, United States
| | - Eduard Mas-Claret
- Natural Products Research Group, Department of Chemistry, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 7XH, United Kingdom
- Royal Botanic Gardens, Kew, Kew Green, Richmond TW9 3AE, United Kingdom
| | - Anbukkarasi Muniyandi
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, 1160 W. Michigan St., Indianapolis, Indiana 46202, United States
| | - Timothy W Corson
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, 1160 W. Michigan St., Indianapolis, Indiana 46202, United States
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, 1160 West Michigan Street, Indianapolis, Indiana 46202, United States
| | - Dulcie A Mulholland
- Natural Products Research Group, Department of Chemistry, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - Sawsan El-Masry
- Department of Pharmacognosy, Faculty of Pharmacy, University of Alexandria, Alkhartoom Square, Alexandria 21521, Egypt
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Wei G, Chen Y, Guo X, Wei J, Dong L, Chen S. Biosyntheses characterization of alkaloids and flavonoids in Sophora flavescens by combining metabolome and transcriptome. Sci Rep 2021; 11:7388. [PMID: 33795823 PMCID: PMC8016917 DOI: 10.1038/s41598-021-86970-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 03/22/2021] [Indexed: 02/01/2023] Open
Abstract
Sophora flavescens are widely used for their pharmacological effects. As its main pharmacological components, alkaloids and flavonoids are distributed in the root tissues wherein molecular mechanisms remain elusive. In this study, metabolite profiles are analyzed using metabolomes to obtain biomarkers detected in different root tissues. These biomarkers include alkaloids, phenylpropanoids, and flavonoids. The high-performance liquid chromatography analysis results indicate the differences in principal component contents. Oxymatrine, sophoridine, and matrine contents are the highest in the phloem, whereas trifolirhizin, maackiain, and kushenol I contents are the highest in the xylem. The transcript expression profiles also show tissue specificity in the roots. A total of 52 and 39 transcripts involved in alkaloid and flavonoid syntheses are found, respectively. Among them, the expression levels of LYSA1, LYSA2, AO2, AO6, PMT1, PMT17, PMT34, and PMT35 transcripts are highly and positively correlated with alkaloids contents. The expression levels of 4CL1, 4CL3, 4CL12, CHI5, CHI7, and CHI9 transcripts are markedly and positively correlated with flavonoids contents. Moreover, the quantitative profiles of alkaloids and flavonoids are provided, and the pivotal genes regulating their distribution in S. flavescens are determined. These results contribute to the existing data for the genetic improvement and target breeding of S. flavescens.
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Affiliation(s)
- Guangfei Wei
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yongzhong Chen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Xiaotong Guo
- College of Agriculture, Ludong University, Yantai, 264025, China
| | - Jianhe Wei
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, 570311, China
| | - Linlin Dong
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Shilin Chen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
- , No.16 Nanxiaojie, Dongzhimennei Ave., Beijing, 100700, China.
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5
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Hadwiger LA. Nonhost Disease Resistance in Pea: Chitosan's Suggested Role in DNA Minor Groove Actions Relative to Phytoalexin-Eliciting Anti-Cancer Compounds. Molecules 2020; 25:E5913. [PMID: 33327391 PMCID: PMC7764892 DOI: 10.3390/molecules25245913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 10/19/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 11/16/2022] Open
Abstract
A stable intense resistance called "nonhost resistance" generates a complete multiple-gene resistance against plant pathogenic species that are not pathogens of pea such as the bean pathogen, Fusarium solani f. sp. phaseoli (Fsph). Chitosan is a natural nonhost resistance response gene activator of defense responses in peas. Chitosan may share with cancer-treatment compounds, netropsin and some anti-cancer drugs, a DNA minor groove target in plant host tissue. The chitosan heptamer and netropsin have the appropriate size and charge to reside in the DNA minor groove. The localization of a percentage of administered radio-labeled chitosan in the nucleus of plant tissue in vivo indicates its potential to transport to site(s) within the nuclear chromatin (1,2). Other minor groove-localizing compounds administered to pea tissue activate the same secondary plant pathway that terminates in the production of the anti-fungal isoflavonoid, pisatin an indicator of the generated resistance response. Some DNA minor groove compounds also induce defense genes designated as "pathogenesis-related" (PR) genes. Hypothetically, DNA targeting components alter host DNA in a manner enabling the transcription of defense genes previously silenced or minimally expressed. Defense-response-elicitors can directly (a) target host DNA at the site of transcription or (b) act by a series of cascading events beginning at the cell membrane and indirectly influence transcription. A single defense response, pisatin induction, induced by chitosan and compounds with known DNA minor groove attachment potential was followed herein. A hypothesis is formulated suggesting that this DNA target may be accountable for a portion of the defense response generated in nonhost resistance.
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Affiliation(s)
- Lee A Hadwiger
- Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, USA
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6
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Zhang Y, Takao K, Abe C, Sasaki K, Ochiai K, Matsui T. Intestinal Absorption of Prenylated Isoflavones, Glyceollins, in Sprague-Dawley Rats. J Agric Food Chem 2020; 68:8205-8211. [PMID: 32648443 DOI: 10.1021/acs.jafc.0c02475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Although prenylated isoflavones or glyceollins elicit physiological effects more potent than those by isoflavones, the bioavailability remains unclear. The present study aimed to clarify the intestinal absorption behavior of glyceollins in Sprague-Dawley rats. Upon oral administration of 1.0 mg/kg glyceollin I or III (daidzein as comparative compound) to the rats, no peaks corresponding to the intact forms of the compounds were detected in plasma by liquid chromatography-time-of-flight/mass spectrometry (LC-TOF/MS) analysis. In contrast, enzymatic deconjugation of plasma resulted in successful MS detection of each glyceollin; glyceollin I absorption was >10 times higher than that of daidzein, given its high log P value. The present study demonstrated for the first time that glyceollins were more absorbable than mother isoflavones due to their high hydrophobicity, and they metabolized to form sulfated, glucuronized, and methylated conjugates during the intestinal absorption process.
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Affiliation(s)
- Ye Zhang
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kazuhiro Takao
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Chizumi Abe
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kuni Sasaki
- Daiz. Inc., 3-14-3 Minami-kumamoto, Chuo-ku, Kumamoto 860-0812, Japan
| | - Koji Ochiai
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Daiz. Inc., 3-14-3 Minami-kumamoto, Chuo-ku, Kumamoto 860-0812, Japan
| | - Toshiro Matsui
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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7
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Palu DS, Paoli M, Casabianca H, Casanova J, Bighelli A. New Compounds from the Roots of Corsican Calicotome Villosa (Poir.) Link.: Two Pterocarpans and a Dihydrobenzofuran. Molecules 2020; 25:molecules25153467. [PMID: 32751545 PMCID: PMC7435676 DOI: 10.3390/molecules25153467] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 11/18/2022]
Abstract
Three new compounds, a dihydrobenzofuran (coumaran) derivative (compound 1) and two pterocarpans (compounds 2 and 3) were isolated from a root extract of Calicotome villosa growing wild in Corsica. Their structures were elucidated using 1D and 2D NMR spectroscopy and MS/MS as 2-(1-methylethenyl)-5-hydroxy-6-carbomethoxy-2,3-dihydro-benzofuran, 4,9-dihydroxy-3-methoxy-2-dimethylallylpterocarpan, and 4,9-dihydroxy-3′,3′-dimethyl-2,3-pyranopterocarpan.
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Affiliation(s)
- Doreen Stacy Palu
- Department of Chemistry, Equipe Chimie-Biomasse, Université de Corse-CNRS, UMR 6134 SPE, Route des Sanguinaires, F- 20000 Ajaccio, France; (D.S.P.); (J.C.); (A.B.)
| | - Mathieu Paoli
- Department of Chemistry, Equipe Chimie-Biomasse, Université de Corse-CNRS, UMR 6134 SPE, Route des Sanguinaires, F- 20000 Ajaccio, France; (D.S.P.); (J.C.); (A.B.)
- Correspondence: ; Tel.: +33-420-202-169
| | - Hervé Casabianca
- Institut des Sciences Analytiques, Université de Lyon, CNRS, Université Claude Bernard Lyon 1, UMR 5280, 5 rue de la Doua, F-69100 Villeurbanne, France;
| | - Joseph Casanova
- Department of Chemistry, Equipe Chimie-Biomasse, Université de Corse-CNRS, UMR 6134 SPE, Route des Sanguinaires, F- 20000 Ajaccio, France; (D.S.P.); (J.C.); (A.B.)
| | - Ange Bighelli
- Department of Chemistry, Equipe Chimie-Biomasse, Université de Corse-CNRS, UMR 6134 SPE, Route des Sanguinaires, F- 20000 Ajaccio, France; (D.S.P.); (J.C.); (A.B.)
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8
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Kalli S, Araya-Cloutier C, Lin Y, de Bruijn WJC, Chapman J, Vincken JP. Enhanced biosynthesis of the natural antimicrobial glyceollins in soybean seedlings by priming and elicitation. Food Chem 2020; 317:126389. [PMID: 32097822 DOI: 10.1016/j.foodchem.2020.126389] [Citation(s) in RCA: 3] [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: 09/06/2019] [Revised: 02/06/2020] [Accepted: 02/10/2020] [Indexed: 12/23/2022]
Abstract
Glyceollins are a class of antimicrobial prenylated pterocarpans produced in soybean seedlings upon fungus elicitation. Priming with reactive oxygen species (ROS) prior to elicitation with Rhizopus oligosporus/oryzae (R) was investigated for its potential to enhance glyceollin production. ROS-priming prior to R-elicitation (ROS + R) increased glyceollin production (8.6 ± 0.9 µmol/g dry weight (DW)) more than 4-fold compared to elicitation without priming (1.9 ± 0.4 µmol/g DW). Furthermore, ROS-priming was superior to two physical primers which were used as benchmark primers, namely slicing (5.0 ± 0.6 µmol glyceollins/g DW) and sonication (4.8 ± 1.0 µmol glyceollins/g DW). Subsequently, the robustness of ROS + R was assessed by applying it to another soybean cultivar, where it also resulted in a significantly higher glyceollin content than R-elicitation without priming. ROS-priming prior to elicitation provides opportunities for improving the yield in large-scale production of natural antimicrobials due to the ease of application and the robustness of the effect across cultivars.
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Affiliation(s)
- Sylvia Kalli
- Laboratory of Food Chemistry, Wageningen University, P.O. Box 17, 6700 AA Wageningen, the Netherlands
| | - Carla Araya-Cloutier
- Laboratory of Food Chemistry, Wageningen University, P.O. Box 17, 6700 AA Wageningen, the Netherlands
| | - Yiran Lin
- Laboratory of Food Chemistry, Wageningen University, P.O. Box 17, 6700 AA Wageningen, the Netherlands
| | - Wouter J C de Bruijn
- Laboratory of Food Chemistry, Wageningen University, P.O. Box 17, 6700 AA Wageningen, the Netherlands
| | - John Chapman
- Unilever R&D Vlaardingen, Olivier van Noortlaan 120, 3133 AT Vlaardingen, the Netherlands
| | - Jean-Paul Vincken
- Laboratory of Food Chemistry, Wageningen University, P.O. Box 17, 6700 AA Wageningen, the Netherlands.
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9
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Huang L, Bittner JP, Domínguez de María P, Jakobtorweihen S, Kara S. Modeling Alcohol Dehydrogenase Catalysis in Deep Eutectic Solvent/Water Mixtures. Chembiochem 2020; 21:811-817. [PMID: 31605652 PMCID: PMC7154551 DOI: 10.1002/cbic.201900624] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Indexed: 11/17/2022]
Abstract
The use of oxidoreductases (EC1) in non-conventional reaction media has been increasingly explored. In particular, deep eutectic solvents (DESs) have emerged as a novel class of solvents. Herein, an in-depth study of bioreduction with an alcohol dehydrogenase (ADH) in the DES glyceline is presented. The activity and stability of ADH in mixtures of glyceline/water with varying water contents were measured. Furthermore, the thermodynamic water activity and viscosity of mixtures of glyceline/water have been determined. For a better understanding of the observations, molecular dynamics simulations were performed to quantify the molecular flexibility, hydration layer, and intraprotein hydrogen bonds of ADH. The behavior of the enzyme in DESs follows the classic dependence of water activity (aW ) in non-conventional media. At low aW values (<0.2), ADH does not show any activity; at higher aW values, the activity was still lower than that in pure water due to the high viscosities of the DES. These findings could be further explained by increased enzyme flexibility with increasing water content.
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Affiliation(s)
- Lei Huang
- Department of EngineeringBiocatalysis and Bioprocessing GroupAarhus UniversityGustav Wieds Vej 108000AarhusDenmark
| | - Jan Philipp Bittner
- Institute of Thermal Separation ProcessesHamburg University of TechnologyEißendorfer Strasse 3821073HamburgGermany
| | | | - Sven Jakobtorweihen
- Institute of Thermal Separation ProcessesHamburg University of TechnologyEißendorfer Strasse 3821073HamburgGermany
| | - Selin Kara
- Department of EngineeringBiocatalysis and Bioprocessing GroupAarhus UniversityGustav Wieds Vej 108000AarhusDenmark
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10
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Pham TH, Lecomte S, Le Guevel R, Lardenois A, Evrard B, Chalmel F, Ferriere F, Balaguer P, Efstathiou T, Pakdel F. Characterization of Glyceollins as Novel Aryl Hydrocarbon Receptor Ligands and Their Role in Cell Migration. Int J Mol Sci 2020; 21:ijms21041368. [PMID: 32085612 PMCID: PMC7072876 DOI: 10.3390/ijms21041368] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/05/2020] [Accepted: 02/14/2020] [Indexed: 12/31/2022] Open
Abstract
Recent studies strongly support the use of the aryl hydrocarbon receptor (AhR) as a therapeutic target in breast cancer. Glyceollins, a group of soybean phytoalexins, are known to exert therapeutic effects in chronic human diseases and also in cancer. To investigate the interaction between glyceollin I (GI), glyceollin II (GII) and AhR, a computational docking analysis, luciferase assays, immunofluorescence and transcriptome analyses were performed with different cancer cell lines. The docking experiments predicted that GI and GII can enter into the AhR binding pocket, but their interactions with the amino acids of the binding site differ, in part, from those interacting with 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Both GI and GII were able to weakly and partially activate AhR, with GII being more potent. The results from the transcriptome assays showed that approximately 10% of the genes regulated by TCDD were also modified by both GI and GII, which could have either antagonistic or synergistic effects upon TCDD activation. In addition, we report here, on the basis of phenotype, that GI and GII inhibit the migration of triple-negative (ER-, PgR-, HER2NEU-) MDA-MB-231 breast cancer cells, and that they inhibit the expression of genes which code for important regulators of cell migration and invasion in cancer tissues. In conclusion, GI and GII are AhR ligands that should be further investigated to determine their usefulness in cancer treatments.
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Affiliation(s)
- Thu Ha Pham
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) -UMR_S1085, F-35000 Rennes, France; (T.H.P.); (S.L.); (A.L.); (B.E.); (F.C.); (F.F.)
| | - Sylvain Lecomte
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) -UMR_S1085, F-35000 Rennes, France; (T.H.P.); (S.L.); (A.L.); (B.E.); (F.C.); (F.F.)
| | - Remy Le Guevel
- ImPACcell platform (SFR Biosit), Univ Rennes, 35000 Rennes, France;
| | - Aurélie Lardenois
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) -UMR_S1085, F-35000 Rennes, France; (T.H.P.); (S.L.); (A.L.); (B.E.); (F.C.); (F.F.)
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) -UMR_S1085, F-35000 Rennes, France; (T.H.P.); (S.L.); (A.L.); (B.E.); (F.C.); (F.F.)
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) -UMR_S1085, F-35000 Rennes, France; (T.H.P.); (S.L.); (A.L.); (B.E.); (F.C.); (F.F.)
| | - François Ferriere
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) -UMR_S1085, F-35000 Rennes, France; (T.H.P.); (S.L.); (A.L.); (B.E.); (F.C.); (F.F.)
| | - Patrick Balaguer
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, ICM, Univ. Montpellier, 34090 Montpellier, France;
| | - Theo Efstathiou
- Laboratoire Nutrinov, Technopole Atalante Champeaux, 8 Rue Jules Maillard de la Gournerie, 35012 Rennes CEDEX, France;
| | - Farzad Pakdel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) -UMR_S1085, F-35000 Rennes, France; (T.H.P.); (S.L.); (A.L.); (B.E.); (F.C.); (F.F.)
- Correspondence: ; Tel.: +33-(0)22-323-5132
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11
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Wen R, Lv HN, Jiang Y, Tu PF. Anti-inflammatory pterocarpanoids from the roots of Pongamia pinnata. J Asian Nat Prod Res 2019; 21:859-866. [PMID: 30678493 DOI: 10.1080/10286020.2018.1529759] [Citation(s) in RCA: 2] [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: 07/17/2018] [Revised: 09/24/2018] [Accepted: 09/24/2018] [Indexed: 06/09/2023]
Abstract
A phytochemical study on the roots of Pongamia pinnata afforded 11 pterocarpanoids, including three new compounds. The structures of the isolated compounds were determined by 1D and 2D NMR and HRESIMS data. The absolute configurations of the new compounds were assigned via analysis of the specific rotations and electronic circular dichroism (ECD) spectra. The isolates were evaluated for their inhibitory effects on nitric oxide (NO) production in LPS-stimulated BV-2 microglial cells. Six compounds exhibited inhibitory effects against NO production, and compound 5 showed the best activity with an IC50 value at 12.0 μM.
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Affiliation(s)
- Ran Wen
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191 , China
- b School of Pharmacy, Hebei Medical University , Shijiazhuang 050017 , China
| | - Hai-Ning Lv
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191 , China
| | - Yong Jiang
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191 , China
| | - Peng-Fei Tu
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191 , China
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12
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Wang HY, Li T, Ji R, Xu F, Liu GX, Li YL, Shang MY, Cai SQ. Metabolites of Medicarpin and Their Distributions in Rats. Molecules 2019; 24:molecules24101966. [PMID: 31121832 PMCID: PMC6572127 DOI: 10.3390/molecules24101966] [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: 04/22/2019] [Revised: 05/11/2019] [Accepted: 05/18/2019] [Indexed: 12/20/2022] Open
Abstract
Medicarpin is a bioactive pterocarpan that has been attracting increasing attention in recent years. However, its metabolic fate in vivo is still unknown. To clarify its metabolism and the distribution of its metabolites in rats after oral administration, the HPLC-ESI-IT-TOF-MSn technique was used. A total of 165 new metabolites (13 phase I and 152 phase II metabolites) were tentatively identified, and 104, 29, 38, 41, 74, 28, 24, 15, 42, 8, 10, 3, and 17 metabolites were identified in urine, feces, plasma, the colon, intestine, stomach, liver, spleen, kidney, lung, heart, brain, and thymus, respectively. Metabolic reactions included demethylation, hydrogenation, hydroxylation, glucuronidation, sulfation, methylation, glycosylation, and vitamin C conjugation. M1 (medicarpin glucuronide), M5 (vestitol-1'-O-glucuronide) were distributed to 10 organs, and M1 was the most abundant metabolite in seven organs. Moreover, we found that isomerization of medicarpin must occur in vivo. At least 93 metabolites were regarded as potential new compounds by retrieving information from the Scifinder database. This is the first detailed report on the metabolism of ptercarpans in animals, which will help to deepen the understanding of the metabolism characteristics of medicarpin in vivo and provide a solid basis for further studies on the metabolism of other pterocarpans in animals.
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Affiliation(s)
- Hong-Yan Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China.
| | - Teng Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China.
| | - Rui Ji
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China.
- School of Pharmacy, Heilongjiang University of Chinese Medicine, No.24, Heping Road, Xiangfang District, Harbin 150040, China.
| | - Feng Xu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China.
| | - Guang-Xue Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China.
| | - Yao-Li Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China.
| | - Ming-Ying Shang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China.
| | - Shao-Qing Cai
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China.
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13
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Gampe N, Darcsi A, Nagyné Nedves A, Boldizsár I, Kursinszki L, Béni S. Phytochemical analysis of Ononis arvensis L. by liquid chromatography coupled with mass spectrometry. J Mass Spectrom 2019; 54:121-133. [PMID: 30408845 DOI: 10.1002/jms.4308] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 10/02/2018] [Accepted: 10/31/2018] [Indexed: 05/25/2023]
Affiliation(s)
- Nóra Gampe
- Department of Pharmacognosy, Semmelweis University, Budapest, Hungary
| | - András Darcsi
- Department of Pharmacognosy, Semmelweis University, Budapest, Hungary
| | | | - Imre Boldizsár
- Department of Plant Anatomy, Eötvös Lóránd University, Budapest, Hungary
| | - László Kursinszki
- Department of Pharmacognosy, Semmelweis University, Budapest, Hungary
| | - Szabolcs Béni
- Department of Pharmacognosy, Semmelweis University, Budapest, Hungary
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14
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Xia W, Luo P, Hua P, Ding P, Li C, Xu J, Zhou H, Gu Q. Discovery of a New Pterocarpan-Type Antineuroinflammatory Compound from Sophora tonkinensis through Suppression of the TLR4/NFκB/MAPK Signaling Pathway with PU.1 as a Potential Target. ACS Chem Neurosci 2019; 10:295-303. [PMID: 30223643 DOI: 10.1021/acschemneuro.8b00243] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [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] [Indexed: 12/17/2022] Open
Abstract
Neuroinflammation underlies many neuro-degenerative diseases. In this paper, we report the identification of a new pterocarpan-type anti-inflammatory compound named sophotokin isolated from Sophora tonkinensis. S. tonkinensis has been used traditionally for treatment of conditions related to inflammation. Our initial screening showed that sophotokin dose-dependently inhibits lipopolysaccharide (LPS)-stimulated production of NO, TNF-α, PGE2, and IL-1β in microglial cells. This antineuroinflammatory effect was associated with sophotokin's blockade of LPS-induced production of the inflammatory mediators iNOS and COX-2. Western blot and qPCR analysis demonstrated that sophotokin inhibits both the p38-MAPK and NF-κB signal pathways. Further studies revealed that sophotokin also suppresses the expression of cluster differentiation 14 (CD14) in the toll-like receptor 4 (TLR4) signaling pathway. Following down-regulation of MyD88 and TRAF6, sophotokin inhibits the activation of the NF-κB and MAPK signal pathways in LPS-induced BV-2 cells. In silico studies suggested that sophotokin could interact with PU.1-DNA complex through hydrogen binding at sites 1 and 2 of the complex, blocking the DNA binding. This suggests that PU.1 may be a potential target of sophotokin. Taken together, these results suggest that sophotokin may have therapeutic potential for diseases related to neuroinflammation. The mechanism of antineuroinflammatory effects involves inhibition of the TLR4 signal pathway at the sites of NF-κB and MAPK with PU.1 as a likely upstream target.
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Affiliation(s)
- Wenjuan Xia
- Research Center for Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Pan Luo
- Research Center for Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Pei Hua
- Research Center for Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Peng Ding
- Research Center for Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Chanjuan Li
- Research Center for Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Huihao Zhou
- Research Center for Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
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15
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Pham TH, Lecomte S, Efstathiou T, Ferriere F, Pakdel F. An Update on the Effects of Glyceollins on Human Health: Possible Anticancer Effects and Underlying Mechanisms. Nutrients 2019; 11:E79. [PMID: 30609801 PMCID: PMC6357109 DOI: 10.3390/nu11010079] [Citation(s) in RCA: 21] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 12/20/2018] [Accepted: 12/23/2018] [Indexed: 12/11/2022] Open
Abstract
Biologically active plant-based compounds, commonly referred to as phytochemicals, can influence the expression and function of various receptors and transcription factors or signaling pathways that play vital roles in cellular functions and are then involved in human health and diseases. Thus, phytochemicals may have a great potential to prevent and treat chronic diseases. Glyceollins, a group of phytoalexins that are isolated from soybeans, have attracted attention because they exert numerous effects on human functions and diseases, notably anticancer effects. In this review, we have presented an update on the effects of glyceollins in relation to their potential beneficial roles in human health. Despite a growing number of studies suggesting that this new family of phytochemicals can be involved in critical cellular pathways, such as estrogen receptor, protein kinase, and lipid kinase signaling pathways, future investigations will be needed to better understand their molecular mechanisms and their specific significance in biomedical applications.
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Affiliation(s)
- Thu Ha Pham
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, F-35000 Rennes, France.
| | - Sylvain Lecomte
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, F-35000 Rennes, France.
| | - Theo Efstathiou
- Laboratoire Nutrinov, Technopole Atalante Champeaux, 8 rue Jules Maillard de la Gournerie, 35012 Rennes Cedex, France.
| | - Francois Ferriere
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, F-35000 Rennes, France.
| | - Farzad Pakdel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, F-35000 Rennes, France.
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16
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Yamamoto T, Sakamoto C, Tachiwana H, Kumabe M, Matsui T, Yamashita T, Shinagawa M, Ochiai K, Saitoh N, Nakao M. Endocrine therapy-resistant breast cancer model cells are inhibited by soybean glyceollin I through Eleanor non-coding RNA. Sci Rep 2018; 8:15202. [PMID: 30315184 PMCID: PMC6185934 DOI: 10.1038/s41598-018-33227-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 09/18/2018] [Indexed: 12/21/2022] Open
Abstract
Long-term estrogen deprivation (LTED) of an estrogen receptor (ER) α-positive breast cancer cell line recapitulates cancer cells that have acquired estrogen-independent cell proliferation and endocrine therapy resistance. Previously, we have shown that a cluster of non-coding RNAs, Eleanors (ESR1 locus enhancing and activating non-coding RNAs) formed RNA cloud and upregulated the ESR1 gene in the nuclei of LTED cells. Eleanors were inhibited by resveratrol through ER. Here we prepared another polyphenol, glyceollin I from stressed soybeans, and identified it as a major inhibitor of the Eleanor RNA cloud and ESR1 mRNA transcription. The inhibition was independent of ER, unlike one by resveratrol. This was consistent with a distinct tertiary structure of glyceollin I for ER binding. Glyceollin I preferentially inhibited the growth of LTED cells and induced apoptosis. Our results suggest that glyceollin I has a novel role in LTED cell inhibition through Eleanors. In other words, LTED cells or endocrine therapy-resistant breast cancer cells may be ready for apoptosis, which can be triggered with polyphenols both in ER-dependent and ER-independent manners.
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Affiliation(s)
- Tatsuro Yamamoto
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto, 860-0811, Japan
- Division of Cancer Biology, The Cancer Institute of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Chiyomi Sakamoto
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto, 860-0811, Japan
| | - Hiroaki Tachiwana
- Division of Cancer Biology, The Cancer Institute of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Mitsuru Kumabe
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto, 860-0811, Japan
| | - Toshiro Matsui
- Faculty of Agriculture, Graduate School of Kyushu University, 744 Mototoka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Tadatoshi Yamashita
- Tokiwa Phytochemical Co. Ltd., 158 Kinoko, Sakura-shi, Chiba, 285-0801, Japan
| | - Masatoshi Shinagawa
- Kajitsudo Co., Ltd, 1155-5, Tabaru, Mashiki-machi, Kamimashiki-gun, Kumamoto, 861-2202, Japan
| | - Koji Ochiai
- Kajitsudo Co., Ltd, 1155-5, Tabaru, Mashiki-machi, Kamimashiki-gun, Kumamoto, 861-2202, Japan
| | - Noriko Saitoh
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto, 860-0811, Japan.
- Division of Cancer Biology, The Cancer Institute of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan.
| | - Mitsuyoshi Nakao
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto, 860-0811, Japan.
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17
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Mendes JA, Salustiano EJ, Pires CDS, Oliveira T, Barcellos JCF, Cifuentes JMC, Costa PRR, Rennó MN, Buarque CD. 11a-N-tosyl-5-carbapterocarpans: Synthesis, antineoplastic evaluation and in silico prediction of ADMETox properties. Bioorg Chem 2018; 80:585-590. [PMID: 30036814 DOI: 10.1016/j.bioorg.2018.07.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 05/06/2018] [Revised: 06/28/2018] [Accepted: 07/01/2018] [Indexed: 11/19/2022]
Abstract
11a-N-tosyl-5-carbapterocarpans (5a-c and 6a-c), 9-N-tosyl-4,4a,9,9a-tetrahydro-3H-carbazole (7), 11a-N-tosyl-5-carbapterocarpen (8) analogues of LQB-223 (4a), were synthesized through palladium catalyzed azaarylation of substituted dihydronaphtalenes (14a-c) and cyclohexadiene (15), respectively, with N-tosyl-o-iodoaniline (11). In order to understand the role of the N-tosyl moiety for the pharmacological activity, the azacarbapterocarpen (9) was also synthesized by Fischer indol reaction. The structural requirements at the A and D-rings for the antineoplastic activity toward human leukemias and breast cancer cells were evaluated as well. Substitutions on the A-ring of 4a and analogues alter the effect on different breast cancer subtypes. On the other hand, A-ring is not essential for antileukemic activity since compound 7, which does not contain the A-ring, showed efficacy with high selectivity indices for drug-resistant leukemias. On the other hand, substitutions on the D-ring of 4a for fluorine or iodine did not improve the antileukemic activity. In silico studies concerning Lipinskís rule of five, ADMET properties and drug scores of those compounds were performed, indicating good physicochemical properties for all compounds, in special for compound 7.
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Affiliation(s)
- Joseane A Mendes
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente, 225, Gávea, Rio de Janeiro, RJ 22435-900, Brazil
| | - Eduardo J Salustiano
- Laboratório de Imunologia Tumoral, Instituto de Bioquímica Médica Leopoldo de Meis, Centro de Ciências da Saúde, Bloco H sala 003, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil; Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Centro de Ciências da Saúde, Bloco C sala C1-042, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil
| | - Carulini de S Pires
- Laboratório de Modelagem Molecular e Pesquisa em Ciências Farmacêuticas, Núcleo em Ecologia e Desenvolvimento Sócio-Ambiental de Macaé, Universidade Federal do Rio de Janeiro Campus Macaé Professor Aloísio Teixeira, Macaé, RJ 27965-045, Brazil
| | - Thaís Oliveira
- Laboratório de Bioquímica e Biologia Molecular do Câncer, Instituto de Bioquímica Médica Leopoldo de Meis, Centro de Ciências da Saúde, Bloco C sala E1-022, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil
| | - Julio C F Barcellos
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais, Centro de Ciências da Saúde, Bloco H, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil
| | - Jhonny M C Cifuentes
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente, 225, Gávea, Rio de Janeiro, RJ 22435-900, Brazil
| | - Paulo R R Costa
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais, Centro de Ciências da Saúde, Bloco H, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil
| | - Magdalena N Rennó
- Laboratório de Modelagem Molecular e Pesquisa em Ciências Farmacêuticas, Núcleo em Ecologia e Desenvolvimento Sócio-Ambiental de Macaé, Universidade Federal do Rio de Janeiro Campus Macaé Professor Aloísio Teixeira, Macaé, RJ 27965-045, Brazil.
| | - Camilla D Buarque
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente, 225, Gávea, Rio de Janeiro, RJ 22435-900, Brazil.
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18
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Jiang T, Li K, Liu H, Yang L. Extraction of biomedical compounds from the wood of Pterocarpus macarocarpus Kurz heartwood. Pak J Pharm Sci 2018; 31:913-918. [PMID: 29716873] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Some wood can be used as traditional Chinese medicine. The medicinal value of wood is associated with its extractives. Pterocarpus macarocarpus Kurz heartwood is a kind of top valuable reddish hardwood in making furniture and handicrafts, but the research about medicine value of this wood is not enough. In order to investigate the high value biomedical compounds in Pterocarpus macarocarpus Kurz heartwood, the woody extractives were obtained by Soxhlet extraction and ultrasonic extraction with benzene-ethanol (1:2, v/v) solvent simultaneously and were analyzed by Gas Chromatography-Mass Spectrometer (GC-MS). Combining with the results of the two extraction methods, 44 compounds can be identified in total. Amony these identified compounds, there were 5 flavonoids, 15 terpenes and 3 steroidal compounds. The representative biomedical compositions were homopterocarpin, medicarpin, (-)-pterocarpin, formononetin, β-eudesmol, stigmasterol, linoleic acid and so on, which indicated that the extractives from Pterocarpus macarocarpus Kurz heartwood have huge potential in biomedicine. This research provides scientific basis for further comprehensive utilization of Pterocarpus macarocarpus Kurz heartwood as Chinese medicine.
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Affiliation(s)
- Tao Jiang
- South China Agricultural University, Guangzhou, Guangdong, China / China CEPREI Laboratory, Guangzhou, Guangdong, China
| | - Kaifu Li
- South China Agricultural University, Guangzhou, Guangdong, China
| | - Honghai Liu
- Nanjing Forestry University, Nanjing, Jiangsu, China
| | - Lin Yang
- Nanjing Forestry University, Nanjing, Jiangsu, China
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19
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Abstract
(+)-Medicarpin has been synthesized asymmetrically for the first time in a linear scalable process with an overall yield of 11%. The two chiral centers were constructed in one step via condensation using a chiral oxazolidinone auxiliary. This method will likely accelerate research on medicarpin as an erythropoietin inducer for erythropoietin-deficient diseases.
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Affiliation(s)
- Xiaoming Yang
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Yu Zhao
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Min-Tsang Hsieh
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
- Chinese Medicine Research and Development Center, China Medical University and Hospital , Taichung 40402, Taiwan
- School of Pharmacy, China Medical University , Taichung 404, Taiwan
| | - Guang Xin
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Rong-Tsun Wu
- Research Center for Drug Discovery, National Yang-Ming University , Taipei 112, Taiwan
| | - Pei-Lun Hsu
- Research Center for Drug Discovery, National Yang-Ming University , Taipei 112, Taiwan
| | - Lin-Yea Horng
- Research Center for Drug Discovery, National Yang-Ming University , Taipei 112, Taiwan
| | - Hui-Ching Sung
- Research Center for Drug Discovery, National Yang-Ming University , Taipei 112, Taiwan
| | - Chien-Hsin Cheng
- PhytoHealth Corporation, Maywafa Biopharma Group, Taipei 105, Taiwan
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
- Chinese Medicine Research and Development Center, China Medical University and Hospital , Taichung 40402, Taiwan
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20
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Farrell K, Jahan MA, Kovinich N. Distinct Mechanisms of Biotic and Chemical Elicitors Enable Additive Elicitation of the Anticancer Phytoalexin Glyceollin I. Molecules 2017; 22:E1261. [PMID: 28749423 PMCID: PMC6152012 DOI: 10.3390/molecules22081261] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 06/16/2017] [Accepted: 07/25/2017] [Indexed: 11/16/2022] Open
Abstract
Phytoalexins are metabolites biosynthesized in plants in response to pathogen, environmental, and chemical stresses that often have potent bioactivities, rendering them promising for use as therapeutics or scaffolds for pharmaceutical development. Glyceollin I is an isoflavonoid phytoalexin from soybean that exhibits potent anticancer activities and is not economical to synthesize. Here, we tested a range of source tissues from soybean, in addition to chemical and biotic elicitors, to understand how to enhance the bioproduction of glyceollin I. Combining the inorganic chemical silver nitrate (AgNO₃) with the wall glucan elicitor (WGE) from the soybean pathogen Phytophthora sojae had an additive effect on the elicitation of soybean seeds, resulting in a yield of up to 745.1 µg gt-1 glyceollin I. The additive elicitation suggested that the biotic and chemical elicitors acted largely by separate mechanisms. WGE caused a major accumulation of phytoalexin gene transcripts, whereas AgNO₃ inhibited and enhanced the degradation of glyceollin I and 6″-O-malonyldaidzin, respectively.
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Affiliation(s)
- Kelli Farrell
- Department of Biology, West Virginia University, Morgantown, WV 26506, USA.
| | - Md Asraful Jahan
- Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV 26506, USA.
| | - Nik Kovinich
- Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV 26506, USA.
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21
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Raghuvanshi A, Kumar A, Tyagi AM, Kureel J, Awasthi P, Purohit D, Mansoori MN, Shukla P, Srivastava K, Gautam AK, Saxena R, Dwivedi A, Singh D, Goel A. 3-Piperidylethoxypterocarpan: A potential bone anabolic agent that improves bone quality and restores trabecular micro-architecture in ovariectomized osteopenic rats. Mol Cell Endocrinol 2017; 448:41-54. [PMID: 28288902 DOI: 10.1016/j.mce.2017.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 03/08/2017] [Accepted: 03/09/2017] [Indexed: 12/23/2022]
Abstract
A series of new 6H-benzofuro[3, 2-c]chromenes (BFC, pterocarpans) with structure-activity relationships were investigated for their potential use in osteoporosis treatment. One of the BFCs 3-piperidylethoxypterocarpan 20 promotes osteoblast differentiation and mineralization at a dose as low as 1 pM via activation of ER/P38MAPK/BMP-2 pathway. When evaluated for in-vivo osteogenic activity in female Sprague-Dawley rats, BFC 20 increased bone mineral density and new bone formation, compared with control at 1.0 and 10.0 mg/kg/body weight by oral gavage for 30 days. The compound was devoid of any uterotrophic effect and led to the new bone formation in adult ovariectomized osteopenic rats. BFC 20 compound also inhibited bone resorption by reducing Ovx induced increase in urinary CTx, thus exhibiting both bone anabolic and anti-catabolic action. Finally, BFC 20 treatment to Ovx rats led to improved trabecular microarchitectural restoration and exhibited therapeutic potential as a dual acting anti-osteoporotic agent for the management of osteoporosis.
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Affiliation(s)
- Ashutosh Raghuvanshi
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Amit Kumar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Abdul M Tyagi
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Jyoti Kureel
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Pallavi Awasthi
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Deepak Purohit
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Mohd Nizam Mansoori
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Priyanka Shukla
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Kamini Srivastava
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Abnish K Gautam
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ruchi Saxena
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Anila Dwivedi
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Divya Singh
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.
| | - Atul Goel
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.
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Yoneyama K, Akashi T, Aoki T. Molecular Characterization of Soybean Pterocarpan 2-Dimethylallyltransferase in Glyceollin Biosynthesis: Local Gene and Whole-Genome Duplications of Prenyltransferase Genes Led to the Structural Diversity of Soybean Prenylated Isoflavonoids. Plant Cell Physiol 2016; 57:2497-2509. [PMID: 27986914 PMCID: PMC5159607 DOI: 10.1093/pcp/pcw178] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 08/02/2016] [Accepted: 10/15/2016] [Indexed: 05/19/2023]
Abstract
Soybean (Glycine max) accumulates several prenylated isoflavonoid phytoalexins, collectively referred to as glyceollins. Glyceollins (I, II, III, IV and V) possess modified pterocarpan skeletons with C5 moieties from dimethylallyl diphosphate, and they are commonly produced from (6aS, 11aS)-3,9,6a-trihydroxypterocarpan [(-)-glycinol]. The metabolic fate of (-)-glycinol is determined by the enzymatic introduction of a dimethylallyl group into C-4 or C-2, which is reportedly catalyzed by regiospecific prenyltransferases (PTs). 4-Dimethylallyl (-)-glycinol and 2-dimethylallyl (-)-glycinol are precursors of glyceollin I and other glyceollins, respectively. Although multiple genes encoding (-)-glycinol biosynthetic enzymes have been identified, those involved in the later steps of glyceollin formation mostly remain unidentified, except for (-)-glycinol 4-dimethylallyltransferase (G4DT), which is involved in glyceollin I biosynthesis. In this study, we identified four genes that encode isoflavonoid PTs, including (-)-glycinol 2-dimethylallyltransferase (G2DT), using homology-based in silico screening and biochemical characterization in yeast expression systems. Transcript analyses illustrated that changes in G2DT gene expression were correlated with the induction of glyceollins II, III, IV and V in elicitor-treated soybean cells and leaves, suggesting its involvement in glyceollin biosynthesis. Moreover, the genomic signatures of these PT genes revealed that G4DT and G2DT are paralogs derived from whole-genome duplications of the soybean genome, whereas other PT genes [isoflavone dimethylallyltransferase 1 (IDT1) and IDT2] were derived via local gene duplication on soybean chromosome 11.
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Affiliation(s)
- Keisuke Yoneyama
- Department of Applied Biological Sciences, Nihon University, Fujisawa, Kanagawa, 252-0880 Japan
| | - Tomoyoshi Akashi
- Department of Applied Biological Sciences, Nihon University, Fujisawa, Kanagawa, 252-0880 Japan
| | - Toshio Aoki
- Department of Applied Biological Sciences, Nihon University, Fujisawa, Kanagawa, 252-0880 Japan
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23
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Fukui H, Mizuguchi H, Kashiwada Y, Nemoto H, Kitamura Y, Takeda N. [Molecular pharmacology of (-)maackiain, from Kujin, an anti-allergic Kampo medicine]. Nihon Yakurigaku Zasshi 2016; 147:148-151. [PMID: 26960774 DOI: 10.1254/fpj.147.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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van de Schans MGM, Vincken JP, de Waard P, Hamers ARM, Bovee TFH, Gruppen H. Glyceollins and dehydroglyceollins isolated from soybean act as SERMs and ER subtype-selective phytoestrogens. J Steroid Biochem Mol Biol 2016; 156:53-63. [PMID: 26655113 DOI: 10.1016/j.jsbmb.2015.11.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 11/23/2015] [Accepted: 11/27/2015] [Indexed: 01/06/2023]
Abstract
Seven prenylated 6a-hydroxy-pterocapans and five prenylated 6a,11a-pterocarpenes with different kinds of prenylation were purified from an ethanolic extract of fungus-treated soybean sprouts. The activity of these compounds toward both human estrogen receptors (hERα and hERβ) was determined in a yeast bioassay and the activity toward hERα was additionally tested in an U2-OS based hERα CALUX bioassay. In the yeast bioassay, compounds with chain prenylation showed in general an agonistic mode of action toward hERα, whereas furan and pyran prenylation led to an antagonistic mode of action. Five of these antagonistic compounds had an agonistic mode of action in the U2-OS based hERα CALUX bioassay, implying that these compounds can act as SERMs. The yeast bioassay also identified 8 ER subtype-selective compounds, with either an antagonistic mode of action or no response toward hERα and an agonistic mode of action toward hERβ. The ER subtype-selective compounds were characterized by 6a-hydroxy-pterocarpan or 6a,11a-pterocarpene backbone structure. It is suggested that either the extra D-ring or the increase in length to 12-13.5Å of these compounds is responsible for an agonistic mode of action toward hERβ and, thereby, inducing ER subtype-selective behavior.
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Affiliation(s)
| | - Jean-Paul Vincken
- Laboratory of Food Chemistry, Wageningen University, Wageningen, The Netherlands.
| | - Pieter de Waard
- Wageningen NMR Centre, Wageningen University, Wageningen, The Netherlands
| | - Astrid R M Hamers
- Business Unit of Toxicology and Bioassays, RIKILT-Institute of Food Safety, Wageningen, The Netherlands
| | - Toine F H Bovee
- Business Unit of Toxicology and Bioassays, RIKILT-Institute of Food Safety, Wageningen, The Netherlands
| | - Harry Gruppen
- Laboratory of Food Chemistry, Wageningen University, Wageningen, The Netherlands
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25
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Chien SC, Chiu HL, Cheng WY, Hong YH, Wang SY, Wu JH, Shih CC, Liao JC, Kuo YH. Pterocarpans from Derris laxiflora. Nat Prod Commun 2016; 11:81-82. [PMID: 26996026] [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: 06/05/2023] Open
Abstract
Six compounds were isolated from Derris laxiflora Benth., including two new pterocarpans, 7,6'-dihydroxy-3'-methoxypterocarpan (1) and derrispisatin (2), as well as four known ones, lespedezol D, (3), secundiflorol 1 (4), 6a-hydroxymaackiain (5) and pisatin (6). The structures of these compounds were determined by analysis of their spectroscopic data.
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26
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Abstract
Stressed soybeans produce a group of phytoalexins that belong to the 6a-hydroxypterocarpan family of flavonoids. Certain of the more prominent members, such as the glyceollins I, II, and III, have demonstrated potential antidiabetic properties and promising cytotoxicity in both human breast and prostate cancer cell cultures with preliminary studies in animals further demonstrating antitumor effects in estrogen-dependent, human breast cancer cell implants. Although syntheses of glyceollin I have been reported previously, this work constitutes the first total directed synthesis of (±)-glyceollin II. It involves 12 steps with an overall yield of 7% using practical methods that should be readily scalable to produce quantities needed for advanced biological characterization. Highlights include a novel intramolecular benzoin condensation, a chelation-controlled lithium aluminum hydride-mediated reduction, and an intramolecular cyclization via the formation of a transient epoxide intermediate to cap the construction of the 6a-hydroxypterocarpan system. Additionally, a dihydro analogue has been obtained, and several isolated intermediates have been made available for evaluation of their biological properties and possible contributions toward elaborating key structure-activity relationship data among this family of promising phytoalexins elicited from stressed soybeans.
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Affiliation(s)
- Neha Malik
- Center for Molecular Innovation and Drug Discovery, Northwestern University , Evanston, Illinois 60208, United States
| | - Zhaoqi Zhang
- Center for Drug Design and Development, Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo , Toledo, Ohio 43606, United States
| | - Paul Erhardt
- Center for Drug Design and Development, Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo , Toledo, Ohio 43606, United States
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27
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Abstract
Bioassay-guided fractionation of an EtOH extract of the roots of the plant Apoplanesia paniculata (Fabaceae) led to the isolation of the three known compounds amorphaquinone (1), pendulone (2), and melilotocarpan C (3), and the two new pterocarpans 4 and 5. Compounds 1 and 2 exhibited good antiplasmodial activity with IC50 values of 5.7 ± 1.5 and 7.0 ± 0.8 µM, respectively. Compound 3 exhibited weak antiplasmodial activity (41.8 ± 5.2 µM), while compounds 4 and 5 were inactive. Compound 6 was synthesized to confirm the structure of 5, and it showed enhanced antiplasmodial activity (15.8 ± 1.4 µM) compared to its analogues 3-5.
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Affiliation(s)
- Qingxi Su
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia, United States
| | - Priscilla Krai
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia, United States
| | - Michael Goetz
- Natural Products Discovery Institute, Doylestown, PA, 18902, US
| | - Maria B. Cassera
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia, United States
| | - David G. I. Kingston
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, Virginia, United States
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28
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Seneviratne HK, Dalisay DS, Kim KW, Moinuddin SGA, Yang H, Hartshorn CM, Davin LB, Lewis NG. Non-host disease resistance response in pea (Pisum sativum) pods: Biochemical function of DRR206 and phytoalexin pathway localization. Phytochemistry 2015; 113:140-8. [PMID: 25457488 DOI: 10.1016/j.phytochem.2014.10.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [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: 07/14/2014] [Revised: 10/11/2014] [Accepted: 10/15/2014] [Indexed: 05/20/2023]
Abstract
Continually exposed to potential pathogens, vascular plants have evolved intricate defense mechanisms to recognize encroaching threats and defend themselves. They do so by inducing a set of defense responses that can help defeat and/or limit effects of invading pathogens, of which the non-host disease resistance response is the most common. In this regard, pea (Pisum sativum) pod tissue, when exposed to Fusarium solani f. sp. phaseoli spores, undergoes an inducible transcriptional activation of pathogenesis-related genes, and also produces (+)-pisatin, its major phytoalexin. One of the inducible pathogenesis-related genes is Disease Resistance Response-206 (DRR206), whose role in vivo was unknown. DRR206 is, however, related to the dirigent protein (DP) family. In this study, its biochemical function was investigated in planta, with the metabolite associated with its gene induction being pinoresinol monoglucoside. Interestingly, both pinoresinol monoglucoside and (+)-pisatin were co-localized in pea pod endocarp epidermal cells, as demonstrated using matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging. In addition, endocarp epidermal cells are also the site for both chalcone synthase and DRR206 gene expression. Taken together, these data indicate that both (+)-pisatin and pinoresinol monoglucoside function in the overall phytoalexin responses.
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Affiliation(s)
| | - Doralyn S Dalisay
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164-6340, USA
| | - Kye-Won Kim
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164-6340, USA
| | - Syed G A Moinuddin
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164-6340, USA
| | - Hong Yang
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164-6340, USA
| | | | - Laurence B Davin
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164-6340, USA
| | - Norman G Lewis
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164-6340, USA.
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29
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Abstract
Pea pod endocarp suppresses the growth of an inappropriate fungus or non-pathogen by generating a "non-host resistance response" that completely suppresses growth of the challenging fungus within 6 h. Most of the components of this resistance response including pisatin production can be elicited by an extensive number of both biotic and abiotic inducers. Thus this phytoalexin serves as an indicator to be used in evaluating the chemical properties of inducers that can initiate the resistance response. Many of the pisatin inducers are reported to interact with DNA and potentially cause DNA damage. Here we propose that EDTA (ethylenediaminetetraacetic acid) is an elicitor to evoke non-host resistance in plants. EDTA is manufactured as a chelating agent, however at low concentration it is a strong elicitor, inducing the phytoalexin pisatin, cellular DNA damage and defense-responsive genes. It is capable of activating complete resistance in peas against a pea pathogen. Since there is also an accompanying fragmentation of pea DNA and alteration in the size of pea nuclei, the potential biochemical insult as a metal chelator may not be its primary action. The potential effects of EDTA on the structure of DNA within pea chromatin may assist the transcription of plant defense genes.
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Affiliation(s)
- Lee A Hadwiger
- Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, USA.
| | - Kiwamu Tanaka
- Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, USA.
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30
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Kim UH, Yoon JH, Li H, Kang JH, Ji HS, Park KH, Shin DH, Park HY, Jeong TS. Pterocarpan-enriched soy leaf extract ameliorates insulin sensitivity and pancreatic β-cell proliferation in type 2 diabetic mice. Molecules 2014; 19:18493-510. [PMID: 25401395 PMCID: PMC6271205 DOI: 10.3390/molecules191118493] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [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: 09/02/2014] [Revised: 11/04/2014] [Accepted: 11/07/2014] [Indexed: 11/17/2022] Open
Abstract
In Korea, soy (Glycine max (L.) Merr.) leaves are eaten as a seasonal vegetable or pickled in soy sauce. Ethyl acetate extracts of soy leaves (EASL) are enriched in pterocarpans and have potent α-glucosidase inhibitory activity. This study investigated the molecular mechanisms underlying the anti-diabetic effect of EASL in C57BL/6J mice with high-fat diet (HFD)-induced type 2 diabetes. Mice were randomly divided into normal diet (ND), HFD (60 kcal% fat diet), EASL (HFD with 0.56% (wt/wt) EASL), and Pinitol (HFD with 0.15% (wt/wt) pinitol) groups. Weight gain and abdominal fat accumulation were significantly suppressed by EASL. Levels of plasma glucose, HbA1c, and insulin in the EASL group were significantly lower than those of the HFD group, and the pancreatic islet of the EASL group had greater size than those of the HFD group. EASL group up-regulated neurogenin 3 (Ngn3), paired box 4 (Pax4), and v-maf musculoaponeurotic fibrosarcoma oncogene homolog A (MafA), which are markers of pancreatic cell development, as well as insulin receptor substrate 1 (IRS1), IRS2, and glucose transporter 4 (GLUT4), which are related to insulin sensitivity. Furthermore, EASL suppressed genes involved in hepatic gluconeogenesis and steatosis. These results suggest that EASL improves plasma glucose and insulin levels in mice with HDF-induced type 2 diabetes by regulating β-cell proliferation and insulin sensitivity.
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Affiliation(s)
- Un-Hee Kim
- Industrial Bio-materials Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Korea.
| | - Jeong-Hyun Yoon
- Industrial Bio-materials Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Korea.
| | - Hua Li
- Industrial Bio-materials Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Korea.
| | - Ji-Hyun Kang
- Industrial Bio-materials Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Korea.
| | - Hyeon-Seon Ji
- Industrial Bio-materials Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Korea.
| | - Ki Hun Park
- Division of Applied Life Science, Gyeongsang National University, Jinju 660-701, Korea.
| | - Dong-Ha Shin
- Insect Biotech Co. Ltd., Daejeon 305-811, Korea.
| | - Ho-Yong Park
- Industrial Bio-materials Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Korea.
| | - Tae-Sook Jeong
- Industrial Bio-materials Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Korea.
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31
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van de Schans MGM, Vincken JP, Bovee TFH, Cervantes AD, Logtenberg MJ, Gruppen H. Structural changes of 6a-hydroxy-pterocarpans upon heating modulate their estrogenicity. J Agric Food Chem 2014; 62:10475-84. [PMID: 25296697 DOI: 10.1021/jf503127c] [Citation(s) in RCA: 10] [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] [Indexed: 06/04/2023]
Abstract
The isoflavonoid composition of an ethanolic extract of fungus-treated soybean sprouts was strongly altered by a combined acid/heat treatment. UHPLC-MS analysis showed that 6a-hydroxy-pterocarpans were completely converted to their respective, more stable, 6a,11a-pterocarpenes, whereas other isoflavonoids, from the isoflavone and coumestan subclasses, were affected to a much lesser extent (loss of ∼15%). Subsequently, mixtures enriched in prenylated 6a-hydroxy-pterocarpans (pools of glyceollin I/II/III and glyceollin IV/VI) or prenylated 6a,11a-pterocarpenes (pools of dehydroglyceollin I/II/III and dehydroglyceollin IV/VI) were purified, and tested for activity on both human estrogen receptors (ERα and ERβ). In particular, the response toward ERα changed, from agonistic for glyceollins to antagonistic for dehydroglyceollins. Toward ERβ a decrease in agonistic activity was observed. These results indicate that the introduction of a double bond with the concomitant loss of a hydroxyl group in 6a-hydroxy-pterocarpans extensively modulates their estrogenic activity.
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Affiliation(s)
- Milou G M van de Schans
- Laboratory of Food Chemistry, Wageningen University , P.O. Box 17, 6700 AA, Wageningen, The Netherlands
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Morimoto M, Fukumoto H, Hiratani M, Chavasiri W, Komai K. Insect Antifeedants, Pterocarpans and Pterocarpol, in Heartwood ofPterocarpus macrocarpusKruz. Biosci Biotechnol Biochem 2014; 70:1864-8. [PMID: 16926498 DOI: 10.1271/bbb.60017] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The insect antifeedant activities of pterocarpans and a sesquiterpene alcohol from the dichloromethane extract of Pterocarpus macrocarpus Kruz. (Leguminosae) were evaluated against the common cutworm, Spodoptera litura F. (Noctuidae), and the subterranean termite, Reticulitermes speratus (Kolbe)(Rhinotermitidae). Three pterocarpans, (-)-homopterocarpin (1), (-)-pterocarpin (2), and (-)-hydroxyhomopterocarpin (3) and the sesquiterpene alcohol, (+)-pterocarpol (5), were isolated from the dichloromethane extract of the heartwood of P. macrocarpus under guidance by a biological assay. Among these natural products, the most active insect antifeedant against both S. litura and R. speratus was 1. On the other hand, sesquiterpene alcohol 5 showed less insect antifeedant activity than the other pterocarpans against both insect species. While its methylated derivative, (-)-methoxyhomopterocarpin (4), showed high biological activity, 3 showed less insect antifeedant activity in this study. Interestingly, racemic 1 did not show insect antifeedant activity against S. litura. However, all of the test pterocarpans and isoflavones showed antifeedant activity against the test termites. Additionally, since these compounds were major constituents of P. macrocarpus, these antifeedant phenolics may act as chemical defense factors in this tree. In Thailand, lumber made from this tree is used to make furniture and in building construction due to its resistance to termite attack.
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Affiliation(s)
- Masanori Morimoto
- Department of Agricultural Chemistry, Faculty of Agriculture, Kinki University, Nakamachi, Japan.
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Wang H, Mei WL, Guo ZK, Xia ZF, Zhong HM, Dai HF. [Chemical constituents of Dalbergia odorifera]. Zhongguo Zhong Yao Za Zhi 2014; 39:1625-1629. [PMID: 25095373] [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
Fourteen compounds were isolated from Dalbergia odoriferae and purified by repeated column chromatography on silica and sephadex LH-20 gel and structurally identified by spectral analysis. These compounds were identified as 4, 9-dimethoxy-3-hydroxypterocarpan (1), medicarpin (2), 2', 4', 5-trihydroxy-7-methoxyisoflavone (3), 2', 3', 7-trihydroxy-4'-methoxyisoflavan (4), formononetin (5), 3, 8-dihydroxy-9-methoxypterocarpan (6), koparin (7), 3-hydroxy-9-methoxypterocarp-6a-ene (8), 2'-hydroxyformononetin (9), stevenin (10), 2', 7-dihydroxy-4', 5'-dimethoxyisoflavone (11), lyoniresinol (12), 2, 4-dihydroxy-5-methoxy-benzophenone (13) and neokhriol A (14). Compounds 1, 3, 4, 6, 8, 12 and 14 were isolated from this plant for the first time. Antibacterial activity assay showed that compound 4 had inhibitory effect on Ralstonia solanacearum.
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Dendup T, Prachyawarakorn V, Pansanit A, Mahidol C, Ruchirawat S, Kittakoop P. α-Glucosidase inhibitory activities of isoflavanones, isoflavones, and pterocarpans from Mucuna pruriens. Planta Med 2014; 80:604-608. [PMID: 24782227 DOI: 10.1055/s-0034-1368427] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Three new isoflavanones (1-3) and thirteen known compounds (4-16) were isolated from the roots of Mucuna pruriens. The absolute configurations of isoflavanones 1-3 and parvisoflavanone (4), lespedeol C (5), and uncinanone C (6) were addressed by a circular dichroism technique. Isoflavanones, isoflavones, and pterocarpans of M. pruriens were found to be α-glucosidase inhibitors. Medicarpin (7) and parvisoflavone B (9) were potent α-glucosidase inhibitors (twofold less active than the standard drug acarbose). The production of bioactive metabolites in M. pruriens seems to be season-dependent.
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Affiliation(s)
- Tshewang Dendup
- Chulabhorn Graduate Institute, Chemical Biology Program, Bangkok, Thailand
| | | | | | - Chulabhorn Mahidol
- Chulabhorn Graduate Institute, Chemical Biology Program, Bangkok, Thailand
| | - Somsak Ruchirawat
- Chulabhorn Graduate Institute, Chemical Biology Program, Bangkok, Thailand
| | - Prasat Kittakoop
- Chulabhorn Graduate Institute, Chemical Biology Program, Bangkok, Thailand
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D'Angiolillo F, Pistellia L, Noccioli C, Ruffoni B, Piaggi S, Scarpato R, Pistelli L. In vitro cultures of Bituminaria bituminosa: pterocarpan, furanocoumarin and isoflavone production and cytotoxic activity evaluation. Nat Prod Commun 2014; 9:477-480. [PMID: 24868860] [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
Bituminaria bituminosa L. is known for producing several compounds with considerable pharmaceutical interest, such as phenylpropanoids, furanocoumarins and pterocarpans. In vitro cultures of seedlings, shoots, and callus have been produced to obtain plant materials useful for the production of these metabolites. The secondary metabolite profile was evaluated by HPLC-DAD. The extracts of all the in vitro material contained the flavonoid daidzein, while plicatin B, erybraedin C and bitucarpin A were found only in the extracts of the in vitro shoots and in wild shoots. The furanocoumarins angelicin and psoralen were found in in vivo and in vitro plants, but in the callus were not detectable. The extracts were also tested for cytotoxic activity in HeLa cell culture; the highest level of cytotoxicity was found in in vitro shoot extracts.
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Villinski JR, Bergeron C, Cannistra JC, Gloer JB, Coleman CM, Ferreira D, Azelmat J, Grenier D, Gafner S. Pyrano-isoflavans from Glycyrrhiza uralensis with antibacterial activity against Streptococcus mutans and Porphyromonas gingivalis. J Nat Prod 2014; 77:521-526. [PMID: 24479468 DOI: 10.1021/np400788r] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Continuing investigation of fractions from a supercritical fluid extract of Chinese licorice (Glycyrrhiza uralensis) roots has led to the isolation of 12 phenolic compounds, of which seven were described previously from this extract. In addition to these seven metabolites, four known components, 1-methoxyerythrabyssin II (4), 6,8-diprenylgenistein, gancaonin G (5), and isoglycyrol (6), and one new isoflavan, licorisoflavan C (7), were characterized from this material for the first time. Treatment of licoricidin (1) with palladium chloride afforded larger amounts of 7 and also yielded two new isoflavans, licorisoflavan D (8), which was subsequently detected in the licorice extract, and licorisoflavan E (9). Compounds 1-9 were evaluated for their antibacterial activities against the cariogenic Streptococcus mutans and the periodontopathogenic Porphyromonas gingivalis. Licoricidin (1), licorisoflavan A (2), and 7-9 showed antibacterial activity against P. gingivalis (MICs of 1.56-12.5 μg/mL). The most potent activity against S. mutans was obtained with 7 (MIC of 6.25 μg/mL), followed by 1 and 9 (MIC of 12.5 μg/mL). This study provides further evidence for the therapeutic potential of licorice extracts for the treatment and prevention of oral infections.
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Quadri S, Stratford RE, Boué SM, Cole RB. Identification of glyceollin metabolites derived from conjugation with glutathione and glucuronic acid in male ZDSD rats by online liquid chromatography-electrospray ionization tandem mass spectrometry. J Agric Food Chem 2014; 62:2692-700. [PMID: 24617284 PMCID: PMC3983382 DOI: 10.1021/jf403498f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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: 08/07/2013] [Revised: 02/08/2014] [Accepted: 02/18/2014] [Indexed: 05/24/2023]
Abstract
Glyceollin-related metabolites produced in rats following oral glyceollin administration were screened in plasma, feces, and urine, and these metabolites were identified by precursor and product ion scanning using liquid chromatography coupled online with electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS). Precursor ion scanning in the negative ion (NI) mode was used to identify all glyceollin metabolites based on production of a diagnostic radical product ion (m/z 148) upon decomposition. Using this approach, precursor peaks of interest were found at m/z 474 and 531. Tandem mass spectra of these two peaks allowed us to characterize them as byproducts of glutathione conjugation. The peak at m/z 474 was identified as the deprotonated cysteinyl conjugate of glyceollins with an addition of an oxygen atom, whereas m/z 531 was identified as the deprotonated cysteinylglyceine glyceollin conjugate plus an oxygen. These results were confirmed by positive ion (PI) mode analyses. Mercapturic acid conjugates of glyceollins were also identified in NI mode. In addition, glucuronidation of glyceollins was observed, giving a peak at m/z 513 corresponding to the deprotonated conjugate. Production of glucuronic acid conjugates of glyceollins was confirmed in vitro in rat liver microsomes. Neither glutathione conjugation byproducts nor glucuronic acid conjugates of glyceollins have been previously reported.
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Affiliation(s)
- Syeda
S. Quadri
- Department
of Chemistry, University of New Orleans, 2000 Lakeshore Dr., New Orleans, Louisiana 70148, United States
| | - Robert E. Stratford
- College
of Pharmacy, Xavier University of Louisiana, 1 Drexel Dr., New Orleans, Louisiana 70125, United States
| | - Stephen M. Boué
- Southern Regional
Research Center, U.S.D.A., 1100 Robert
E. Lee Blvd. New Orleans, Louisiana 70124, United States
| | - Richard B. Cole
- Department
of Chemistry, University of New Orleans, 2000 Lakeshore Dr., New Orleans, Louisiana 70148, United States
- Institut
Parisien de Chimie Moléculaire (UMR 8232), Université Pierre et Marie Curie (Paris 6), 4 Place Jussieu, 75252 Paris, France
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Celoy RM, VanEtten HD. (+)-Pisatin biosynthesis: from (-) enantiomeric intermediates via an achiral 7,2'-dihydroxy-4',5'-methylenedioxyisoflav-3-ene. Phytochemistry 2014; 98:120-7. [PMID: 24332213 DOI: 10.1016/j.phytochem.2013.10.017] [Citation(s) in RCA: 10] [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: 07/10/2013] [Revised: 10/14/2013] [Accepted: 10/24/2013] [Indexed: 05/20/2023]
Abstract
(+)-Pisatin, produced by peas (Pisum sativum L.), is an isoflavonoid derivative belonging to the pterocarpan family. It was the first chemically identified phytoalexin, and subsequent research has demonstrated that most legumes produce pterocarpans with the opposite stereochemistry. Studies on the biosynthesis of (+)-pisatin have shown that (-) enantiomeric compounds are intermediates in (+)-pisatin synthesis. However, the steps from the (-)-7,2'-dihydroxy-4',5'-methylenedioxyisoflavanone [(-)-sophorol] intermediate to (+)-6a-hydroxymaackiain intermediate are undetermined. Chemical reduction of (-)-sophorol using sodium borohydride (NaBH4) produced two isomers of (-)-7,2'-dihydroxy-4',5'-methylenedioxyisoflavanol [(-)-DMDI] with optimal UV absorbance at 299.3 and 300.5 nm, respectively. In contrast, enzymatic reduction of (-)-sophorol by the pea enzyme sophorol reductase (SOR) produced only the 299.3 nm (-)-DMDI isomer. Proton nuclear magnetic resonance ((1)H NMR) analysis of the 299.3 nm (-)-DMDI isomer demonstrated that this isomer had the same NMR spectrum as previously reported for cis-isoflavanol isomers, indicating that cis-(-)-DMDI is an intermediate in (+)-pisatin biosynthesis. Enzyme assays using protein extracts from pea tissue treated with CuCl2 as an elicitor converted the cis-(-)-DMDI isomer into an achiral isoflavene, 7,2'-dihydroxy-4',5'-methylenedioxyisoflav-3-ene (DMDIF), and the trans-(-)-DMDI isomer was not metabolized by the same protein preparation. A comparison of the enzyme activities on cis-(-)-DMDI with protein preparations from elicited tissue versus non-elicited tissue showed a threefold increase in the amount of activity in the proteins from the elicited tissue. Proteins from the elicited tissues of alfalfa, bean, and chickpea converted cis-(-)-DMDI into either (-)-maackiain and/or (-)-sophorol, while proteins from the elicited tissues of broccoli and pepper produced no detectable product. These results are consistent with the involvement of cis-(-)-DMDI and the achiral DMDIF as intermediates in (+)-pisatin biosynthesis.
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Affiliation(s)
- Rhodesia M Celoy
- School of Plant Sciences, University of Arizona, 1140 E. South Campus Drive, Forbes 303, Tucson, AZ 85721, United States
| | - Hans D VanEtten
- School of Plant Sciences, University of Arizona, 1140 E. South Campus Drive, Forbes 303, Tucson, AZ 85721, United States.
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Liu Y, Wu Z, Feng S, Yang X, Huang D. Hormesis of glyceollin I, an induced phytoalexin from soybean, on budding yeast chronological lifespan extension. Molecules 2014; 19:568-80. [PMID: 24399048 PMCID: PMC6270785 DOI: 10.3390/molecules19010568] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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: 11/25/2013] [Revised: 12/19/2013] [Accepted: 12/20/2013] [Indexed: 12/18/2022] Open
Abstract
Glyceollin I, an induced phytoalexin isolated from soybean, has been reported to have various bioactivities, including anti-bacterial, anti-nematode, anti-fungal, anti-estrogenic and anti-cancer, anti-oxidant, anti-inflammatory, insulin sensitivity enhancing, and attenuation of vascular contractions. Here we show that glyceollin I has hormesis and extends yeast life span at low (nM) doses in a calorie restriction (CR)-dependent manner, while it reduces life span and inhibits yeast cell proliferation at higher (μM) doses. In contrast, the other two isomers (glyceollin II and III) cannot extend yeast life span and only show life span reduction and antiproliferation at higher doses. Our results in anti-aging activity indicate that glyceollin I might be a promising calorie restriction mimetic candidate, and the high content of glyceollins could improve the bioactivity of soybean as functional food ingredients.
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Affiliation(s)
- Yuancai Liu
- Hubei Key Laboratory of TCM Based Functional Food Quality and Safety, Jing Brand Company, Daye 435100, Hubei, China.
| | - Ziyun Wu
- Hubei Key Laboratory of TCM Based Functional Food Quality and Safety, Jing Brand Company, Daye 435100, Hubei, China.
| | - Shengbao Feng
- Hubei Key Laboratory of TCM Based Functional Food Quality and Safety, Jing Brand Company, Daye 435100, Hubei, China.
| | - Xuena Yang
- Hubei Key Laboratory of TCM Based Functional Food Quality and Safety, Jing Brand Company, Daye 435100, Hubei, China.
| | - Dejian Huang
- Hubei Key Laboratory of TCM Based Functional Food Quality and Safety, Jing Brand Company, Daye 435100, Hubei, China.
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Caamal-Fuentes E, Moo-Puc R, Torres-Tapia LW, Peraza-Sanchez SR. Pterocarpans from the root bark of Aeschynomene fascicularis. Nat Prod Commun 2013; 8:1421-1422. [PMID: 24354191] [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
A new pterocarpan, aeschynocarpin (1), and the known pterocarpan 2-methoxymedicarpin (2) were isolated for the first time from Aeschynomene fascicularis (Fabaceae) and their structures elucidated by means of spectroscopic {UV/Vis, IR, and NMR (1H, 13C, COSY, HMQC,and HMBC)} andmass spectrometric (EI-MS and HRCIMS) techniques. Both compounds were tested in vitro for their cytotoxic and antiproliferative activities against a panel of cancer cell lines. This is the first report on the presence of pterocarpans in the genus Aeschynomene.
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Affiliation(s)
- Edgar Caamal-Fuentes
- Unidad de Biotecnologia, Centro de Investigación Científica de Yucatán, Calle 43 No. 130, Col. Chuburná de Hidalgo, Mérida, Yucatán 97200, Mexico
| | - Rosa Moo-Puc
- Unidad de Investigación Medica Yucatán, Unidad Médica de Alta Especialidad, Centro Médico Ignacio Garcia Thélez, Instituto Mexicano del Seguro Social, Calle 41 No. 439, Col. Industrial, Mérida, Yucatán 97150, México
| | - Luis W Torres-Tapia
- Unidad de Biotecnologia, Centro de Investigación Científica de Yucatán, Calle 43 No. 130, Col. Chuburná de Hidalgo, Mérida, Yucatán 97200, Mexico
| | - Sergio R Peraza-Sanchez
- Unidad de Biotecnologia, Centro de Investigación Científica de Yucatán, Calle 43 No. 130, Col. Chuburná de Hidalgo, Mérida, Yucatán 97200, Mexico
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41
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Liu Q, Xu R, Yan Z, Jin H, Cui H, Lu L, Zhang D, Qin B. Phytotoxic allelochemicals from roots and root exudates of Trifolium pratense. J Agric Food Chem 2013; 61:6321-7. [PMID: 23738849 DOI: 10.1021/jf401241e] [Citation(s) in RCA: 7] [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: 05/23/2023]
Abstract
Trifolium pratense, a widespread legume forage plant, is reported to exhibit phytotoxic activity on other plants, but the active metabolites have not been clarified so far. A bioassay-guided fractionation of the root extracts led to the isolation of five isoflavonoids, which were elucidated by spectroscopic analysis. All of the purified compounds observably showed phytotoxic activities against Arabidopsis thaliana . Moreover, the inhibitory effects were concentration-dependent. The furan ring linked at C-4 and C-2' positions by an oxygen atom and a 1,3-dioxolane at C-4' and C-5' positions are considered to be critical factors for the phytotoxic activity. The concentrations of (6aR,11aR)-maackiain and (6aR,11aR)-trifolirhizin, concluded to be allelochemicals from soil around plants of T. pratense, were determined by HPLC and LC-MS to be 4.12 and 2.37 μg/g, respectively. These allelochemicals, which showed remarkable activities against the weed Poa annua may play an important role in assisting the widespread occurrence of T. pratense in nature.
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Affiliation(s)
- Quan Liu
- Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
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Shin SH, Lee YM. Glyceollins, a novel class of soybean phytoalexins, inhibit SCF-induced melanogenesis through attenuation of SCF/c-kit downstream signaling pathways. Exp Mol Med 2013; 45:e17. [PMID: 23559126 PMCID: PMC3641398 DOI: 10.1038/emm.2013.20] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Revised: 12/11/2012] [Accepted: 12/26/2012] [Indexed: 12/17/2022] Open
Abstract
The anti-melanogenesis effect of glyceollins was examined by melanin synthesis, tyrosinase activity assay in zebrafish embryos and in B16F10 melanoma cells. When developing zebrafish embryos were treated with glyceollins, pigmentation of the embryos, melanin synthesis and tyrosinase activity were all decreased compared with control zebrafish embryos. In situ expression of a pigment cell-specific gene, Sox10, was dramatically decreased by glyceollin treatment in the neural tubes of the trunk region of the embryos. Stem cell factor (SCF)/c-kit signaling pathways as well as expression of microphthalmia-associated transcription factor (MITF) were determined by western blot analysis. Glyceollins inhibited melanin synthesis, as well as the expression and activity of tyrosinase induced by SCF, in a dose-dependent manner in B16F10 melanoma cells. Pretreatment of B16F10 cells with glyceollins dose-dependently inhibited SCF-induced c-kit and Akt phosphorylation. Glyceollins significantly impaired the expression and activity of MITF. An additional inhibitory function of glyceollins was to effectively downregulate intracellular cyclic AMP levels stimulated by SCF in B16F10 cells. Glyceollins have a depigmentation/whitening activity in vitro and in vivo, and that this effect may be due to the inhibition of SCF-induced c-kit and tyrosinase activity through the blockade of downstream signaling pathway.
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Affiliation(s)
- Sun-Hye Shin
- School of Life Sciences and Biotechnology, College of Natural Sciences, Daegu, Republic of Korea
| | - You-Mie Lee
- School of Life Sciences and Biotechnology, College of Natural Sciences, Daegu, Republic of Korea
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Kyungpook National University, Daegu, Republic of Korea
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Quadri SS, Stratford RE, Boué SM, Cole RB. Screening and identification of glyceollins and their metabolites by electrospray ionization tandem mass spectrometry with precursor ion scanning. Anal Chem 2013; 85:1727-33. [PMID: 23294002 PMCID: PMC3593975 DOI: 10.1021/ac3030398] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A method has been developed for screening glyceollins and their metabolites based on precursor ion scanning. Under higher-energy collision conditions with the employment of a triple quadrupole mass spectrometer in the negative ion mode, deprotonated glyceollin precursors yield a diagnostic radical product ion at m/z 148. We propose this resonance-stabilized radical anion, formed in violation of the even-electron rule, to be diagnostic of glyceollins and glyceollin metabolites. Liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS) established that scanning for precursors of m/z 148 can identify glyceollins and their metabolites from plasma samples originating from rats dosed with glyceollins. Precursor peaks of interest were found at m/z 337, 353, 355, 417, and 433. The peak at m/z 337 corresponds to deprotonated glyceollins, whereas the others represent metabolites of glyceollins. Accurate mass measurement confirmed m/z 417 to be a sulfated metabolite of glyceollins. The peak at m/z 433 is also sulfated, but it contains an additional oxygen, as confirmed by accurate mass measurement. The latter metabolite differs from the former likely by the replacement of a hydrogen with a hydroxyl moiety. The peaks at m/z 353 and 355 are proposed to correspond to hydroxylated metabolites of glyceollins, wherein the latter additionally undergoes a double bond reduction.
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Affiliation(s)
- Syeda S Quadri
- Department of Chemistry, University of New Orleans, 2000 Lakeshore Drive, New Orleans, Louisiana 70148, United States
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44
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Zeng Y, Luo JJ, Li C. [Chemical constituents from aerial part of Rumex patientia]. Zhong Yao Cai 2013; 36:57-60. [PMID: 23750410] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To study the chemical constituents from aerial part of Rumex patientia. METHODS The compounds were isolated and purified by silica gels and polyamide column chromatography. Their structures were elucidated by physicochemical and spectroscopic evidences. RESULTS Twelve compounds were identified as: chrysophanol (1), chrysophanol-8-O-beta-D-glucopyranoside (2), physcion (3), emodin(4), emodin-8-O-beta-D-glucopyranoside (5), maackiain (6), maackiain-3-O-beta-D-glucopyranoside (7), quercetin-3-O-beta-D-glucopyranoside (8), quercetin-3-O-beta-D-glucuronide(9), 2-O-methylinositol (10), torachrysone-8-O-beta-D-glucopyranoside (11) and nepodin-8-O-beta-D-glucopyranoside (12). CONCLUSION Compounds 6, 7, 10 are isolated from this genus for the first time, and compound 9 is isolated from this plant for the first time.
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Affiliation(s)
- Yong Zeng
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China.
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45
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Iranshahi M, Vu H, Pham N, Zencak D, Forster P, Quinn RJ. Cytotoxic evaluation of alkaloids and isoflavonoids from the Australian tree Erythrina vespertilio. Planta Med 2012; 78:730-6. [PMID: 22354391 DOI: 10.1055/s-0031-1298310] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
A new glucoalkaloid, vespertilioside, together with three known alkaloids, including 11- β-methoxyglucoerysovine, erysotrine, and hypaphorine, were isolated from the fruits of E. vespertilio Benth. In addition, three known isoflavonoids, including phaseollin, alpiniumisoflavone, and phaseollidin, were identified from the plant stems. The structures of compounds were determined by 1D/2D NMR and mass experiments. The cytotoxic activity of all compounds was evaluated against a metastatic prostate cancer cell line (PC3) and neonatal foreskin fibroblast (NFF) using a real-time label-free cell analyser. Among the tested compounds, phaseollidin showed cytotoxic activities against PC3 (IC (50) = 8.83 ± 1.87 µM) and NFF (0.64 ± 0.37 µM) cell lines.
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Affiliation(s)
- Mehrdad Iranshahi
- Biotechnology Research Center and School of Pharmacy, Mashhad University of Medical Sciences, Vakilabad Blvd., Mashhad, Iran.
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46
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Gafner S, Bergeron C, Villinski JR, Godejohann M, Kessler P, Cardellina JH, Ferreira D, Feghali K, Grenier D. Isoflavonoids and coumarins from Glycyrrhiza uralensis: antibacterial activity against oral pathogens and conversion of isoflavans into isoflavan-quinones during purification. J Nat Prod 2011; 74:2514-2519. [PMID: 22074222 DOI: 10.1021/np2004775] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [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
Phytochemical investigation of a supercritical fluid extract of Glycyrrhiza uralensis has led to the isolation of 20 known isoflavonoids and coumarins, and glycycarpan (7), a new pterocarpan. The presence of two isoflavan-quinones, licoriquinone A (8) and licoriquinone B (9), in a fraction subjected to gel filtration on Sephadex LH-20 is due to suspected metal-catalyzed oxidative degradation of licoricidin (1) and licorisoflavan A (2). The major compounds in the extract, as well as 8, were evaluated for their ability to inhibit the growth of several major oral pathogens. Compounds 1 and 2 showed the most potent antibacterial activities, causing a marked growth inhibition of the cariogenic species Streptococcus mutans and Streptococcus sobrinus at 10 μg/mL and the periodontopathogenic species Porphyromonas gingivalis (at 5 μg/mL) and Prevotella intermedia (at 5 μg/mL for 1 and 2.5 μg/mL for 2). Only 1 moderately inhibited growth of Fusobacterium nucleatum at the highest concentration tested (10 μg/mL).
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Affiliation(s)
- Stefan Gafner
- Tom's of Maine, 302 Lafayette Center, Kennebunk, Maine 04043, USA.
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Yuk HJ, Curtis-Long MJ, Ryu HW, Jang KC, Seo WD, Kim JY, Kang KY, Park KH. Pterocarpan profiles for soybean leaves at different growth stages and investigation of their glycosidase inhibitions. J Agric Food Chem 2011; 59:12683-90. [PMID: 21988571 DOI: 10.1021/jf203326c] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [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
Soybean leaves are eaten as seasonal edible greens in Korea. Analysis of the ethyl acetate extract of these leaves showed that it exhibited potent and selective neuraminidase inhibition, which began at the R3 stage and peaked at R7. Ten pterocarpans, including the new 6a-hydroxypterocarpan 10, were isolated from soybean leaves and their inhibition activities tested against a range of glycosidases. The relationship between structure and enzyme inhibition was investigated: 6a-hydroxypterocarpans exhibited much higher inhibition against neuraminidase (IC(50) = 2.4-89.4 μM) than α-glucosidase (IC(50) = 90.4- >100 μM). Glyceollin VII (7) displayed 40-fold greater activity (IC(50) = 2.4 μM) against neuraminidase than α-glucosidase (IC(50) = 90.4 μM). On the other hand, coumestanes (1-3) were good α-glucosidase inhibitors (IC(50) = 6.0-42.6 μM). In kinetic analysis, the most potent neuraminidase inhibitors (5-10) were noncompetitive. HPLC analysis indicated that most pterocarpan synthesis began from the R3 stage, and a rapid change of pterocarpan concentrations was observed between the R4 and R7 stages.
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Affiliation(s)
- Heung Joo Yuk
- Division of Applied Life Science (BK21 Program), IALS, Graduate School of Gyeongsang National University, Jinju 660-701, Republic of Korea
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Kim HJ, Sung MK, Kim JS. Anti-inflammatory effects of glyceollins derived from soybean by elicitation with Aspergillus sojae. Inflamm Res 2011; 60:909-17. [PMID: 21671066 DOI: 10.1007/s00011-011-0351-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2011] [Revised: 04/25/2011] [Accepted: 05/26/2011] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE Given the preventive effect of soy intake against several chronic diseases, this study was conducted to investigate the inhibitory activity against inflammatory response of phytoalexins glyceollins derived from soybean isoflavones by treatment with a biotic elicitor. METHODS Using RAW264.7 cells, we examined the effects of glyceollins on production of nitric oxide (NO) and inflammatory cytokines, expression of inducible nitric oxide synthase (iNOS) and cyclo-oxygenase (COX)-2, and activation of NF-кB, induced by lipopolysaccharide (LPS). RESULTS Our data showed that glyceollins effectively inhibited NO production, IL-6 release, and expression of iNOS and COX-2 induced by LPS. In particular, glyceollins suppressed the LPS-induced phosphorylation of NF-кB p65, suggesting that the compounds inhibit the production of NO and transcriptional activation of COX-2 by regulating NF-кB activity. In another experiment we found that glyceollins enhanced the expression of heme oxygenase 1 in LPS-treated RAW264.7 cells. Glyceollins also reduced TPA-induced skin inflammation in a mouse model, confirming the anti-inflammatory activity of glyceollins in an in-vivo system as well as in a cell culture system. CONCLUSION Glyceollins exert an anti-inflammatory effect, which is mediated through the inhibition of NF-κB activation in LPS-activated murine RAW264.7 cells. Glyceollins merit further study as potential therapeutic agents for inflammatory disorders.
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Affiliation(s)
- Hyo Jung Kim
- School of Applied Bioscience and Food Science and Biotechology and BK21 Research Team for Developing Functional Health Food Materials, Kyungpook National University, Deagu 702-701, Republic of Korea
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Arman M. LC-ESI-MS characterisation of phytoalexins induced in chickpea and pea tissues in response to a biotic elicitor of Hypnea musciformis (red algae). Nat Prod Res 2011; 25:1352-60. [PMID: 21859260 DOI: 10.1080/14786419.2011.553952] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
A simple extraction procedure and HPLC method was developed to analyse the major and minor components of induced phytoalexins of elicited tissues (seeds) of chickpeas (Cicer arietinum L.) and peas (Pisum sativum L.) treated with a biotic elicitor (k-carrageenan) of Hypnea musciformis (red algae) from the Karachi coast. The level and timing of the induced phytoalexin production were estimated on the basis of various elicitor dilutions and as a function of time; the results are presented and discussed. A LC-ESI-MS/MS technique has been employed for the detection and characterisation of the induced phytochemical components (flavonoids and their glyco-conjugates). Nine flavonoids were identified from chickpeas: naringin, naringin malonate, liquiritigenin, naringenin, biochanin A, daidzein, formononetin, maackiain and medicarpin, while five flavonoids were identified from peas: afrormosin, anhydropisatin, pisatin, pseudobaptigenin and maackiain. These compounds play a vital role as phytoalexins because of their antimicrobial activity.
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Affiliation(s)
- Muhammad Arman
- PCSIR Laboratories Complex Karachi, Sharah-e-Dr Salimuzzaman Siddiqui , Off University Road , Karachi -75280 , Pakistan.
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Hegazy MEF, El-Hamd H Mohamed A, El-Halawany AM, Djemgou PC, Shahat AA, Paré PW. Estrogenic activity of chemical constituents from Tephrosia candida. J Nat Prod 2011; 74:937-942. [PMID: 21510635 DOI: 10.1021/np100378d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [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
In a continued investigation of medicinal plants from the genus Tephrosia, phytochemical analysis of a methylene chloride-methanol (1:1) extract of the air-dried aerial parts of Tephrosia candida afforded two new 8-prenylated flavonoids, namely, tephrocandidins A (1) and B (2), a new prenylated chalcone, candidachalcone (3), a new sesquiterpene (4), and a previously reported pea flavonoid phytoalexin, pisatin (5). The structures of 1-4 were established by spectroscopic methods, including HREIMS, and 1H, 13C, DEPT, HMQC, and HMBC NMR experiments. The most potent estrogenic activity of these isolated natural products in an estrogen receptor (ERα) competitive-binding assay was for 3, which exhibited an IC50 value of 80 μM, compared with 18 nM for the natural steroid 17β-estradiol. Results were interpreted via virtual docking of isolated compounds to an ERα crystal structure.
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Affiliation(s)
- Mohamed-Elamir F Hegazy
- Chemistry of Medicinal Plants Department, and Center of Excellence for Advanced Sciences, National Research Centre, El-Tahrir Street, Dokki, Giza, 12622, Egypt
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