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Wen Y, Jiang X, Li D, Ou Z, Yu Y, Chen R, Chen C, Xu H. Synthesis and characterization of an artificial glucosinolate bearing a chlorthalonil-based aglycon as a potent inhibitor of glucosinolate transporters. PHYTOCHEMISTRY 2023; 212:113726. [PMID: 37207992 DOI: 10.1016/j.phytochem.2023.113726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 04/20/2023] [Accepted: 05/15/2023] [Indexed: 05/21/2023]
Abstract
Glucosinolates (GSLs) are specialized metabolites in plants of the order Brassicales. GSL transporters (GTRs) are essential for the redistribution of GSLs and also play a role in controlling the GSL content of seeds. However, specific inhibitors of these transporters have not been reported. In the current study, we described the design and synthesis of 2,3,4,6-tetrachloro-5-cyanophenyl GSL (TCPG), an artificial GSL bearing a chlorothalonil moiety as a potent inhibitor of GTRs, and evaluated its inhibitory effect on the substrate uptake mediated through GTR1 and GTR2. Molecular docking showed that the position of the β-D-glucose group of TCPG was significantly different from that of the natural substrate in GTRs and the chlorothalonil moiety forms halogen bonds with GTRs. Functional assays and kinetic analysis of the transport activity revealed that TCPG could significantly inhibit the transport activity of GTR1 and GTR2 (IC50 values (mean ± SD) being 79 ± 16 μM and 192 ± 14 μM, respectively). Similarly, TCPG could inhibit the uptake and phloem transport of exogenous sinigrin by Arabidopsis thaliana (L.) Heynh leaf tissues, while not affecting that of esculin (a fluorescent surrogate for sucrose). TCPG could also reduce the content of endogenous GSLs in phloem exudates. Together, TCPG was discovered as an undescribed inhibitor of the uptake and phloem transport of GSLs, which brings novel insights into the ligand recognition of GTRs and provides a new strategy to control the GSL level. Further tests on the ecotoxicological and environmental safety of TCPG are needed before using it as an agricultural or horticultural chemical in the future.
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Affiliation(s)
- Yingjie Wen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources and Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Xunyuan Jiang
- Institute of Quality Standard and Monitoring Technology for Agro-products of Guangdong Academy of Agricultural Sciences and Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-products, Guangzhou, Guangdong, 510640, China
| | - Dehong Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources and Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Ziyue Ou
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources and Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Ye Yu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources and Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Ronghua Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources and Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Changming Chen
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Hanhong Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources and Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, Guangdong, 510642, China.
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Kdimy A, El Yadini M, Guaadaoui A, Bourais I, El Hajjaji S, Le HV. Phytochemistry, Biological Activities, Therapeutic Potential, and Socio-Economic Value of the Caper Bush (Capparis spinosa L.). Chem Biodivers 2022; 19:e202200300. [PMID: 36064949 DOI: 10.1002/cbdv.202200300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 09/05/2022] [Indexed: 11/10/2022]
Abstract
Capparis spinosa L., commonly known as the caper bush, is an aromatic plant growing in most of the Mediterranean basin and some parts of Western Asia. C. spinosa L. has been utilized as a medicinal plant for quite a long time in conventional phytomedicine. Polyphenols and numerous bioactive chemicals extracted from C. spinosa L. display various therapeutic properties that have made this plant a target for further research as a health promoter. This review is meant to systematically summarize the traditional uses, the phytochemical composition of C. spinosa L., and the diverse pharmacological activities, as well as the synthetic routes to derivatives of some identified chemical components for the improvement of biological activities and enhancement of pharmacokinetic profiles. This review also addresses the benefits of C. spinosa L. in adapting to climate change and the socio-economic value that C. spinosa L. brings to the rural economies of many countries.
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Affiliation(s)
- Ayoub Kdimy
- Mohammed V University of Rabat Faculty of Sciences: Universite Mohammed V de Rabat Faculte des Sciences, Faculty of Science, United Nations Avenue, Agdal, Rabat, MOROCCO
| | - Meryem El Yadini
- Mohammed V University of Rabat Faculty of Sciences: Universite Mohammed V de Rabat Faculte des Sciences, Faculty of Science, United Nations Avenue, Agdal, Rabat, MOROCCO
| | - Abdelkarim Guaadaoui
- Mohammed V University of Rabat Faculty of Sciences: Universite Mohammed V de Rabat Faculte des Sciences, Faculty of Science, United Nations Avenue, Agdal, Rabat, MOROCCO
| | - Ilhame Bourais
- Mohammed V University of Rabat Faculty of Sciences: Universite Mohammed V de Rabat Faculte des Sciences, Faculty of Science, United Nations Avenue, Agdal, Rabat, MOROCCO
| | - Souad El Hajjaji
- Mohammed V University of Rabat Faculty of Sciences: Universite Mohammed V de Rabat Faculte des Sciences, Faculty of Science, United Nations Avenue, Agdal, Rabat, MOROCCO
| | - Hoang V Le
- University of Mississippi School of Pharmacy, Department of BioMolecular Sciences, 419 Faser Hall, 38677, University, UNITED STATES
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Kederienė V, Rousseau J, Schuler M, Šačkus A, Tatibouët A. Copper-catalyzed S-arylation of Furanose-Fused Oxazolidine-2-thiones. Molecules 2022; 27:molecules27175597. [PMID: 36080364 PMCID: PMC9457760 DOI: 10.3390/molecules27175597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/26/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
The 1,3-oxazolidine-2-thiones (OZTs) are important chiral molecules, especially in asymmetric synthesis. These compounds serve as important active units in biologically active compounds. Herein, carbohydrate anchored OZTs were explored to develop a copper-catalyzed C-S bond formation with aryl iodides. Chemoselective S-arylation was observed, with copper iodide and dimethylethylenediamine (DMEDA) as the best ligand in dioxane at 60–90 °C. The corresponding chiral oxazolines were obtained in reasonable to good yields under relatively mild reaction conditions. This approach is cheap, as using one of the cheapest transition metals, a simple protocol and various functional group tolerance make it a valuable strategy for getting S-substituted furanose-fused OZT. The structures of the novel carbohydrates were confirmed by NMR spectroscopy and an HRMS analysis.
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Affiliation(s)
- Vilija Kederienė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
- Correspondence: (V.K.); (A.T.)
| | - Jolanta Rousseau
- Univ. Artois, CNRS, Centrale Lille, Univ. Lille, UMR 8181–UCCS–Unité de Catalyse et Chimie du Solide, Faculty of Science Jean Perrin, Rue Jean Souvraz SP 18, F-62300 Lens, France
| | - Marie Schuler
- Institute de Chimie Organique et Analitique (ICOA), Université d’Orléans, UMR-CNRS 7311, BP 6759, F-45067 Orléans, France
| | - Algirdas Šačkus
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
| | - Arnaud Tatibouët
- Institute de Chimie Organique et Analitique (ICOA), Université d’Orléans, UMR-CNRS 7311, BP 6759, F-45067 Orléans, France
- Correspondence: (V.K.); (A.T.)
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Isothiocyanates (ITCs) 1-(Isothiocyanatomethyl)-4-phenylbenzene and 1-Isothiocyanato-3,5-bis(trifluoromethyl)benzene—Aldehyde Dehydrogenase (ALDH) Inhibitors, Decreases Cisplatin Tolerance and Migratory Ability of NSCLC. Int J Mol Sci 2022; 23:ijms23158644. [PMID: 35955773 PMCID: PMC9369118 DOI: 10.3390/ijms23158644] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 07/28/2022] [Accepted: 07/29/2022] [Indexed: 01/27/2023] Open
Abstract
One of the main treatment modalities for non-small-cell lung cancer (NSCLC) is cisplatin-based chemotherapy. However, the acquisition of cisplatin resistance remains a major problem. Existing chemotherapy regimens are often ineffective against cancer cells expressing aldehyde dehydrogenase (ALDH). As such, there is an urgent need for therapies targeting ALDH-positive cancer cells. The present study compares the anticancer properties of 36 structurally diverse isothiocyanates (ITCs) against NSCLC cells with the ALDH inhibitor disulfiram (DSF). Their potential affinity to ALDH isoforms and ABC proteins was assessed using AutoDockTools, allowing for selection of three compounds presenting the strongest affinity to all tested proteins. The selected ITCs had no impact on NSCLC cell viability (at tested concentrations), but significantly decreased the cisplatin tolerance of cisplatin-resistant variant of A549 (A549CisR) and advanced (stage 4) NSCLC cell line H1581. Furthermore, long-term supplementation with ITC 1-(isothiocyanatomethyl)-4-phenylbenzene reverses the EMT phenotype and migratory potential of A549CisR to the level presented by parental A549 cells, increasing E-Cadherin expression, followed by decreased expression of ABCC1 and ALDH3A1. Our data indicates that the ALDH inhibitors DSF and ITCs are potential adjuvants of cisplatin chemotherapy.
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Wu J, Cui S, Liu J, Tang X, Zhao J, Zhang H, Mao B, Chen W. The recent advances of glucosinolates and their metabolites: Metabolism, physiological functions and potential application strategies. Crit Rev Food Sci Nutr 2022:1-18. [PMID: 35389274 DOI: 10.1080/10408398.2022.2059441] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Glucosinolates and their metabolites from Brassicaceae plants have received widespread attention due to their anti-inflammatory effects. Glucosinolates occurs an "enterohepatic circulation" in the body, and the glucosinolates metabolism mainly happens in the intestine. Glucosinolates can be converted into isothiocyanates by intestinal bacteria, which are active substances with remarkable anti-inflammatory, anti-cancer, anti-obesity and neuroprotective properties. This biotransformation can greatly improve the bioactivities of glucosinolates. However, multiple factors in the environment can affect the biotransformation to isothiocyanates, including acidic pH, ferrous ions and thiocyanate-forming protein. The derivatives of glucosinolates under those conditions are usually nitriles and thiocyanates, which may impair the potential health benefits. In addition, isothiocyanates are extremely unstable because of an active sulfhydryl group, which limits their applications. This review mainly summarizes the classification, synthesis, absorption, metabolism, physiological functions and potential application strategies of glucosinolates and their metabolites.
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Affiliation(s)
- Jiaying Wu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Shumao Cui
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Junsheng Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Xin Tang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,National Engineering Research Center for Functional Food, Jiangnan University, China
| | - Bingyong Mao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,National Engineering Research Center for Functional Food, Jiangnan University, China
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Janczewski Ł. Sulforaphane and Its Bifunctional Analogs: Synthesis and Biological Activity. Molecules 2022; 27:1750. [PMID: 35268851 PMCID: PMC8911885 DOI: 10.3390/molecules27051750] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/04/2022] [Accepted: 03/05/2022] [Indexed: 12/27/2022] Open
Abstract
For decades, various plants have been studied as sources of biologically active compounds. Compounds with anticancer and antimicrobial properties are the most frequently desired. Cruciferous plants, including Brussels sprouts, broccoli, and wasabi, have a special role in the research studies. Studies have shown that consumption of these plants reduce the risk of lung, breast, and prostate cancers. The high chemopreventive and anticancer potential of cruciferous plants results from the presence of a large amount of glucosinolates, which, under the influence of myrosinase, undergo an enzymatic transformation to biologically active isothiocyanates (ITCs). Natural isothiocyanates, such as benzyl isothiocyanate, phenethyl isothiocyanate, or the best-tested sulforaphane, possess anticancer activity at all stages of the carcinogenesis process, show antibacterial activity, and are used in organic synthesis. Methods of synthesis of sulforaphane, as well as its natural or synthetic bifunctional analogues with sulfinyl, sulfanyl, sulfonyl, phosphonate, phosphinate, phosphine oxide, carbonyl, ester, carboxamide, ether, or additional isothiocyanate functional groups, and with the unbranched alkyl chain containing 2-6 carbon atoms, are discussed in this review. The biological activity of these compounds are also reported. In the first section, glucosinolates, isothiocyanates, and mercapturic acids (their metabolites) are briefly characterized. Additionally, the most studied anticancer and antibacterial mechanisms of ITC actions are discussed.
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Affiliation(s)
- Łukasz Janczewski
- Faculty of Chemistry, Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
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Almushayti AY, Brandt K, Carroll MA, Scotter MJ. Current analytical methods for determination of glucosinolates in vegetables and human tissues. J Chromatogr A 2021; 1643:462060. [PMID: 33770631 DOI: 10.1016/j.chroma.2021.462060] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/18/2021] [Accepted: 03/05/2021] [Indexed: 10/21/2022]
Abstract
Numerous epidemiological studies have indicated the potential effects of glucosinolates and their metabolites against cancer as well as other non-communicable diseases, such as cardiovascular disease and neurodegenerative disorders. However, information on the presence and quantity of glucosinolates in commonly consumed vegetables and in human fluids is sparse, largely because well-standardised methods for glucosinolate determination are not available, resulting in published data being inconsistent and conflicting. Thus, studies published since 2002 on the most recent developments of glucosinolate extraction and identification have been collected and reviewed with emphasis on determination of the intact glucosinolates by LC-MS and LC-MS/MS. This overview highlights the glucosinolate extraction methods used, the stability of glucosinolates during extraction, the availability of stable isotope labelled internal standards and the use of NMR for purity analysis, as well as the current analytical techniques that have been applied for glucosinolate analysis, e.g. liquid chromatography with mass spectrometric detection (LC-MS). It aims to interpret the findings with a focus on the development of a validated method, which will help to determine the glucosinolate content of vegetative plants and human tissues, and the identification and determination of selected glucosinolate metabolites.
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Affiliation(s)
- Albatul Y Almushayti
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK; College of Agriculture and Veterinary Medicine, Department of Food Science and Human Nutrition, Qassim University, Qassim, KSA.
| | - Kirsten Brandt
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK.
| | - Michael A Carroll
- School of Natural & Environmental Sciences-Chemistry, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.
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Glucosinolates: Natural Occurrence, Biosynthesis, Accessibility, Isolation, Structures, and Biological Activities. Molecules 2020; 25:molecules25194537. [PMID: 33022970 PMCID: PMC7582585 DOI: 10.3390/molecules25194537] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/28/2020] [Accepted: 09/28/2020] [Indexed: 12/13/2022] Open
Abstract
Glucosinolates (GSLs) are secondary plant metabolites abundantly found in plant order Brassicales. GSLs are constituted by an S-β-d-glucopyrano unit anomerically connected to O-sulfated (Z)-thiohydroximate moiety. The side-chain of the O-sulfate thiohydroximate moiety, which is derived from a different amino acid, contributes to the diversity of natural GSL, with more than 130 structures identified and validated to this day. Both the structural diversity of GSL and their biological implication in plants have been biochemically studied. Although chemical syntheses of GSL have been devised to give access to these secondary metabolites, direct extraction from biomass remains the conventional method to isolate natural GSL. While intact GSLs are biologically inactive, various products, including isothiocyanates, nitriles, epithionitriles, and cyanides obtained through their hydrolysis of GSLs, exhibit many different biological activities, among which several therapeutic benefits have been suggested. This article reviews natural occurrence, accessibility via chemical, synthetic biochemical pathways of GSL, and the current methodology of extraction, purification, and characterization. Structural information, including the most recent classification of GSL, and their stability and storage conditions will also be discussed. The biological perspective will also be explored to demonstrate the importance of these prominent metabolites.
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Blažević I, Montaut S, Burčul F, Olsen CE, Burow M, Rollin P, Agerbirk N. Glucosinolate structural diversity, identification, chemical synthesis and metabolism in plants. PHYTOCHEMISTRY 2020; 169:112100. [PMID: 31771793 DOI: 10.1016/j.phytochem.2019.112100] [Citation(s) in RCA: 235] [Impact Index Per Article: 58.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 07/04/2019] [Accepted: 08/18/2019] [Indexed: 05/05/2023]
Abstract
The glucosinolates (GSLs) is a well-defined group of plant metabolites characterized by having an S-β-d-glucopyrano unit anomerically connected to an O-sulfated (Z)-thiohydroximate function. After enzymatic hydrolysis, the sulfated aglucone can undergo rearrangement to an isothiocyanate, or form a nitrile or other products. The number of GSLs known from plants, satisfactorily characterized by modern spectroscopic methods (NMR and MS) by mid-2018, is 88. In addition, a group of partially characterized structures with highly variable evidence counts for approximately a further 49. This means that the total number of characterized GSLs from plants is somewhere between 88 and 137. The diversity of GSLs in plants is critically reviewed here, resulting in significant discrepancies with previous reviews. In general, the well-characterized GSLs show resemblance to C-skeletons of the amino acids Ala, Val, Leu, Trp, Ile, Phe/Tyr and Met, or to homologs of Ile, Phe/Tyr or Met. Insufficiently characterized, still hypothetic GSLs include straight-chain alkyl GSLs and chain-elongated GSLs derived from Leu. Additional reports (since 2011) of insufficiently characterized GSLs are reviewed. Usually the crucial missing information is correctly interpreted NMR, which is the most effective tool for GSL identification. Hence, modern use of NMR for GSL identification is also reviewed and exemplified. Apart from isolation, GSLs may be obtained by organic synthesis, allowing isotopically labeled GSLs and any kind of side chain. Enzymatic turnover of GSLs in plants depends on a considerable number of enzymes and other protein factors and furthermore depends on GSL structure. Identification of GSLs must be presented transparently and live up to standard requirements in natural product chemistry. Unfortunately, many recent reports fail in these respects, including reports based on chromatography hyphenated to MS. In particular, the possibility of isomers and isobaric structures is frequently ignored. Recent reports are re-evaluated and interpreted as evidence of the existence of "isoGSLs", i.e. non-GSL isomers of GSLs in plants. For GSL analysis, also with MS-detection, we stress the importance of using authentic standards.
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Affiliation(s)
- Ivica Blažević
- Department of Organic Chemistry, Faculty of Chemistry and Technology, University of Split, Ruđera Boškovića 35, 21000, Split, Croatia.
| | - Sabine Montaut
- Department of Chemistry and Biochemistry, Biomolecular Sciences Programme, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON P3E 2C6, Canada
| | - Franko Burčul
- Department of Analytical Chemistry, Faculty of Chemistry and Technology, University of Split, Ruđera Boškovića 35, 21000, Split, Croatia
| | - Carl Erik Olsen
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Denmark
| | - Meike Burow
- DynaMo Center and Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Denmark
| | - Patrick Rollin
- Institut de Chimie Organique et Analytique (ICOA), Université d'Orléans et CNRS, UMR 7311, BP 6759, F-45067, Orléans Cedex 2, France
| | - Niels Agerbirk
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Denmark.
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Ong MJH, Hewitt RJ. Synthesis of 1,4,2‐Oxathiazoles via Norrish Type II Generation of Thiocarbonyls. ChemistrySelect 2019. [DOI: 10.1002/slct.201902301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Michelle J. H. Ong
- Institute of Chemical and Engineering SciencesAgency for Science, Technology and Research (A*STAR) 8 Biomedical Grove, #07-01 Neuros Building Biopolis 138665 Singapore
| | - Russell J. Hewitt
- Institute of Chemical and Engineering SciencesAgency for Science, Technology and Research (A*STAR) 8 Biomedical Grove, #07-01 Neuros Building Biopolis 138665 Singapore
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11
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Ouassou M, Mukhaimar M, El Amrani A, Kroymann J, Chauveau O. [Biosynthesis of indole glucosinolates and ecological role of secondary modification pathways]. C R Biol 2019; 342:58-80. [PMID: 31088733 DOI: 10.1016/j.crvi.2019.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/22/2019] [Accepted: 03/23/2019] [Indexed: 11/26/2022]
Abstract
Indole glucosinolates are plant secondary metabolites derived from the amino acid tryptophan. They are part of a large group of sulfur-containing molecules almost exclusively found among Brassicales, which include the mustard family (Brassicaceae) with many edible plant species of major nutritional importance. These compounds mediate numerous interactions between these plants and their natural enemies and are therefore of major biological and economical interest. This literature review aims at taking stock of recent advances of our knowledge about the biosynthetic pathways of indole glucosinolates, but also about the defense strategies and ecological processes involving these metabolites.
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Affiliation(s)
- Malika Ouassou
- Unité « Écologie, systématique et évolution », UMR 8079, université Paris-Sud, CNRS, AgroParisTech, université Paris-Saclay, 91405 Orsay, France; Laboratory of Biochemistry and Molecular Genetics, Department of Biology, Faculty of Science and Technics, Abdelmalek Essaadi University, Tangier, Maroc
| | - Maisara Mukhaimar
- National Agricultural Research Center (NARC)-Jenin/Gaza, Ministry of Agriculture, Jenin, Palestine
| | - Amal El Amrani
- Laboratory of Biochemistry and Molecular Genetics, Department of Biology, Faculty of Science and Technics, Abdelmalek Essaadi University, Tangier, Maroc
| | - Juergen Kroymann
- Unité « Écologie, systématique et évolution », UMR 8079, université Paris-Sud, CNRS, AgroParisTech, université Paris-Saclay, 91405 Orsay, France
| | - Olivier Chauveau
- Unité « Écologie, systématique et évolution », UMR 8079, université Paris-Sud, CNRS, AgroParisTech, université Paris-Saclay, 91405 Orsay, France.
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Mavratzotis M, Cassel S, Montaut S, Rollin P. ω-Methylsulfanylalkyl Glucosinolates: A General Synthetic Pathway. Molecules 2018; 23:molecules23040786. [PMID: 29597339 PMCID: PMC6017801 DOI: 10.3390/molecules23040786] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 03/20/2018] [Accepted: 03/21/2018] [Indexed: 12/17/2022] Open
Abstract
A general pathway was devised to synthesize ω-methylsulfanylalkyl glucosinolates, which represent an important class of structurally homogeneous plant secondary metabolites. The required thiofunctionalized hydroximoyl chlorides were obtained from the corresponding α,ω-nitroalkyl methylsulfide precursors, involving as the key-step, a nitronate chlorination strategy. A coupling reaction with 1-thio-beta-d-glucopyranose, followed by O-sulfation of the intermediate thiohydroximate and final deprotection of the sugar moiety afforded the target compounds.
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Affiliation(s)
- Manolis Mavratzotis
- Institut de Chimie Organique et Analytique (ICOA), Université d'Orléans et CNRS, UMR 7311, BP 6759, F-45067 Orléans CEDEX 2, France.
| | - Stéphanie Cassel
- Institut de Chimie Organique et Analytique (ICOA), Université d'Orléans et CNRS, UMR 7311, BP 6759, F-45067 Orléans CEDEX 2, France.
- Laboratoire IMRCP, UMR CNRS 5623, Université P. Sabatier Toulouse III, 118 route de Narbonne, 31062 Toulouse CEDEX 9, France.
| | - Sabine Montaut
- Department of Chemistry and Biochemistry, Biomolecular Sciences Programme, Laurentian University, Sudbury, ON P3E 2C6, Canada.
| | - Patrick Rollin
- Institut de Chimie Organique et Analytique (ICOA), Université d'Orléans et CNRS, UMR 7311, BP 6759, F-45067 Orléans CEDEX 2, France.
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Pedras MSC, To QH. Synthesis of stable isotope-labeled nasturlexins and potential precursors to probe biosynthetic pathways of cruciferous phytoalexins. J Labelled Comp Radiopharm 2018; 61:94-106. [PMID: 29231250 DOI: 10.1002/jlcr.3591] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 11/20/2017] [Accepted: 11/28/2017] [Indexed: 11/10/2022]
Abstract
The syntheses of perdeuterated phytoalexins nasturlexins A and C, and putative biosynthetic precursors, including phenylethyl isothiocyanates and phenylethyl dithiocarbamates, using commercially available [2,3,4,5,6-D5 ]phenylalanine, [2,3,4,5,6-D5 ]nitrobenzene, and [2,3,4,5,6-D5 ]benzaldehyde are described. In addition, application of an efficient deuterium-hydrogen exchange transformation to nonlabeled starting materials allowed access to new deuterated compounds, including 3-hydroxyphenylethyl glucosinolate.
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Affiliation(s)
| | - Q Huy To
- Department of Chemistry, University of Saskatchewan, Saskatoon, Canada
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14
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Cutolo G, Reise F, Schuler M, Nehmé R, Despras G, Brekalo J, Morin P, Renard PY, Lindhorst TK, Tatibouët A. Bifunctional mannoside–glucosinolate glycoconjugates as enzymatically triggered isothiocyanates and FimH ligands. Org Biomol Chem 2018; 16:4900-4913. [DOI: 10.1039/c8ob01128a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of glucosinolate–mannoside glycoconjugates combining both the structural features of a myrosinase substrate and a FimH ligand is described.
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Affiliation(s)
- G. Cutolo
- Institut de Chimie Organique et Analytique - ICOA UMR 7311 CNRS Université d'Orléans - Rue de Chartres
- 45067 Orléans cedex 02
- France
| | - F. Reise
- Otto Diels Institute of Organic Chemistry
- Christian-Albrechts University of Kiel
- D-24118 Kiel
- Germany
| | - M. Schuler
- Institut de Chimie Organique et Analytique - ICOA UMR 7311 CNRS Université d'Orléans - Rue de Chartres
- 45067 Orléans cedex 02
- France
| | - R. Nehmé
- Institut de Chimie Organique et Analytique - ICOA UMR 7311 CNRS Université d'Orléans - Rue de Chartres
- 45067 Orléans cedex 02
- France
| | - G. Despras
- Otto Diels Institute of Organic Chemistry
- Christian-Albrechts University of Kiel
- D-24118 Kiel
- Germany
| | - J. Brekalo
- Institut de Chimie Organique et Analytique - ICOA UMR 7311 CNRS Université d'Orléans - Rue de Chartres
- 45067 Orléans cedex 02
- France
- Otto Diels Institute of Organic Chemistry
- Christian-Albrechts University of Kiel
| | - P. Morin
- Institut de Chimie Organique et Analytique - ICOA UMR 7311 CNRS Université d'Orléans - Rue de Chartres
- 45067 Orléans cedex 02
- France
| | - P.-Y. Renard
- Normandie Université
- Université de Rouen; INSA Rouen; CNRS
- 76000 Rouen
- COBRA UMR 6014 & FR 3038 IRCOF
- 76821 Mont-Saint-Aignan cedex
| | - T. K. Lindhorst
- Otto Diels Institute of Organic Chemistry
- Christian-Albrechts University of Kiel
- D-24118 Kiel
- Germany
| | - A. Tatibouët
- Institut de Chimie Organique et Analytique - ICOA UMR 7311 CNRS Université d'Orléans - Rue de Chartres
- 45067 Orléans cedex 02
- France
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15
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Synthesis of aromatic and indole alpha-glucosinolates. Carbohydr Res 2017; 455:45-53. [PMID: 29169042 DOI: 10.1016/j.carres.2017.11.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 11/10/2017] [Accepted: 11/10/2017] [Indexed: 11/24/2022]
Abstract
Aromatic and indole glucosinolates are important members of the glucosinolate family of compounds du to their potential medicinal properties. They are known to exert antioxidant and anti-carcinogenic activity either by the natural products themselves, or their metabolic products including indole-3-carbinol and isothiocyanates. Natural glucosinolates are all β-glucosinolates; however, α-glucosinolates are also promising compounds for medicinal applications and hence have to be produced synthetically for any bio-activity studies. Here we report on the successful synthesis of a series of α-glucosinolates: α-neoglucobrassicin, α-4-methoxyglucobrassicin, 2,3-dichlorophenyl-α-glucosinolate for the first time. Testing for anti-inflammatory properties of these synthetic GLs, however, did not yield the expected activity.
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16
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17
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Glucosinolates: Novel Sources and Biological Potential. REFERENCE SERIES IN PHYTOCHEMISTRY 2017. [DOI: 10.1007/978-3-319-25462-3_1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Teranishi K, Masayasu N. Structure of a Precursor to the Blue Components Produced in the Blue Discoloration in Japanese Radish (Raphanus sativus) Roots. JOURNAL OF NATURAL PRODUCTS 2016; 79:1381-1387. [PMID: 27128155 DOI: 10.1021/acs.jnatprod.6b00121] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The internal blue discoloration in Japanese radish (Raphanus sativus L.) roots has been reported to be a physiological phenomenon after harvest and poses a significant problem for farmers. To avoid this discoloration, the fundamental development of new radish cultivars that do not undergo discoloration and/or improved cultivation methods is required. Elucidating the chemical mechanism leading to this discoloration could help overcome these difficulties. To determine the mechanism underlying this discoloration, this study was designed to probe the structure of a precursor to the blue components generated during the discoloration process. Soaking fresh roots in aqueous H2O2 resulted in rapid blue discoloration, similar to the natural discoloration. Using a H2O2-based blue discoloration assay, the precursor was extracted and isolated from the fresh roots and identified as the glucosinolate, 4-hydroxyglucobrassicin, via spectroscopy and chemical synthesis.
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Affiliation(s)
- Katsunori Teranishi
- Graduate School of Bioresources, Mie University , 1577 Kurimamachiya, Tsu, Mie 514-8507, Japan
| | - Nagata Masayasu
- Food Research Institute, National Agriculture and Food Research Organization , 2-1-12 Kannondai, Tsukuba, Ibaraki 305-8642, Japan
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19
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Marroun S, Montaut S, Marquès S, Lafite P, Coadou G, Rollin P, Jousset G, Schuler M, Tatibouët A, Oulyadi H, Daniellou R. UGT74B1 from Arabidopsis thaliana as a versatile biocatalyst for the synthesis of desulfoglycosinolates. Org Biomol Chem 2016; 14:6252-61. [DOI: 10.1039/c6ob01003b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A glucosyltransferase is able to catalyze the formation of the thioglycosidic bond and lead to desulfoglycosinolates.
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Affiliation(s)
- Sami Marroun
- Normandie Univ
- COBRA
- UMR 6014 et FR 3038; Univ Rouen; INSA Rouen; CNRS
- IRCOF
- 76821 Mont Saint Aignan Cedex
| | - Sabine Montaut
- Department of Chemistry and Biochemistry
- Biomolecular Sciences Programme
- Laurentian University
- Sudbury
- Canada
| | | | | | - Gaël Coadou
- Normandie Univ
- COBRA
- UMR 6014 et FR 3038; Univ Rouen; INSA Rouen; CNRS
- IRCOF
- 76821 Mont Saint Aignan Cedex
| | | | | | | | | | - Hassan Oulyadi
- Normandie Univ
- COBRA
- UMR 6014 et FR 3038; Univ Rouen; INSA Rouen; CNRS
- IRCOF
- 76821 Mont Saint Aignan Cedex
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20
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Pedras MSC, To QH, Schatte G. Divergent reactivity of an indole glucosinolate yields Lossen or Neber rearrangement products: the phytoalexin rapalexin A or a unique β-d-glucopyranose fused heterocycle. Chem Commun (Camb) 2016; 52:2505-8. [DOI: 10.1039/c5cc09822j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Transformation of an indole-3-glucosinolate under acidic conditions yielded the potent phytoalexin rapalexin A, via Lossen type rearrangement, while a novel glucopyranose heterocyclic system was obtained under basic conditions via Neber type rearrangement.
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Affiliation(s)
- M. S. C. Pedras
- Department of Chemistry
- University of Saskatchewan
- Saskatoon
- Canada
| | - Q. H. To
- Department of Chemistry
- University of Saskatchewan
- Saskatoon
- Canada
| | - G. Schatte
- Department of Chemistry
- University of Saskatchewan
- Saskatoon
- Canada
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21
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Marquès S, Schuler M, Tatibouët A. Preparation of Pyranose-Based ThioimidateN-Oxides (TINOs). European J Org Chem 2015. [DOI: 10.1002/ejoc.201403619] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Somsák L, Bokor É, Czibere B, Czifrák K, Koppány C, Kulcsár L, Kun S, Szilágyi E, Tóth M, Docsa T, Gergely P. Synthesis of C-xylopyranosyl- and xylopyranosylidene-spiro-heterocycles as potential inhibitors of glycogen phosphorylase. Carbohydr Res 2014; 399:38-48. [DOI: 10.1016/j.carres.2014.05.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/26/2014] [Accepted: 05/28/2014] [Indexed: 11/28/2022]
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23
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Vo QV, Trenerry C, Rochfort S, White J, Hughes AB. Preparation and X-ray analysis of potassium (2,3-dichlorophenyl)glucosinolate. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2014; 70:588-94. [DOI: 10.1107/s2053229614009115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 04/22/2014] [Indexed: 11/10/2022]
Abstract
There has been much interest in obtaining crystals for crystallographic analysis of biologically active glucosinolates. Crystals of potassium (2,3-dichlorophenyl)glucosinolate were obtained as a dual solvate, containing one methanol and one ethanol molecule of crystallization, K+·C13H14Cl2NO9S2−·CH3OH·C2H5OH. The three-dimensional polymeric network consists of chains containing the potassium ions coordinated and bridged by sugar O atoms, which run parallel to theaaxis and are further crosslinked through the sugar molecules. The channels of this network are occupied by the dichlorophenyl substituents and the ethanol and methanol solvent molecules. The structure of theS-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-2,3-dichlorophenylacetothiohydroxymate, C21H23Cl2NO10S, precursor has also been determined and the β-configuration andZisomer of the thiohydroximate substituent is confirmed.
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24
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Lemercier BC, Pierce JG. Synthesis of Thiohydroxamic Acids and Thiohydroximic Acid Derivatives. J Org Chem 2014; 79:2321-30. [DOI: 10.1021/jo500080x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Bérénice C. Lemercier
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Joshua G. Pierce
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
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25
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Vo QV, Trenerry C, Rochfort S, Wadeson J, Leyton C, Hughes AB. Synthesis and anti-inflammatory activity of indole glucosinolates. Bioorg Med Chem 2013; 22:856-64. [PMID: 24360830 DOI: 10.1016/j.bmc.2013.12.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 11/21/2013] [Accepted: 12/02/2013] [Indexed: 11/24/2022]
Abstract
The nitronate and nitrovinyl methods to synthesize indole glucosinolates (GLs) have been investigated. The results were applied to generally the most prevalent natural indole glucosinolates to synthesize 4-methoxyglucobrassicin (MGB) and neo-glucobrassicin (NGB) in moderate overall yield for the first time. The anti-inflammatory activity of the synthetic indole GLs was determined by inhibition of TNF-α secretion in LPS-stimulated THP-1 cells. The data showed that glucobrassicin (GB) exhibited higher activity than other synthetic indolyl GLs.
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Affiliation(s)
- Quan V Vo
- Department of Chemistry, La Trobe University, Victoria 3086, Australia
| | - Craige Trenerry
- Department of Primary Industries, Knoxfield Centre, 621 Burwood Highway, Knoxfield 3180, Australia
| | - Simone Rochfort
- Department of Primary Industries, Victorian AgriBiosciences Centre, La Trobe University Research and Development Park, 1 Park Drive, Bundoora 3083, Victoria, Australia; La Trobe University, Victoria 3086, Australia
| | - Jenny Wadeson
- Department of Primary Industries, Victorian AgriBiosciences Centre, La Trobe University Research and Development Park, 1 Park Drive, Bundoora 3083, Victoria, Australia
| | - Carolina Leyton
- Department of Primary Industries, Victorian AgriBiosciences Centre, La Trobe University Research and Development Park, 1 Park Drive, Bundoora 3083, Victoria, Australia
| | - Andrew B Hughes
- Department of Chemistry, La Trobe University, Victoria 3086, Australia.
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26
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Nehmé R, Nehmé H, Roux G, Cerniauskaite D, Morin P, Rollin P, Tatibouët A. Contactless conductivity detection for screening myrosinase substrates by capillary electrophoresis. Anal Chim Acta 2013; 807:153-8. [PMID: 24356232 DOI: 10.1016/j.aca.2013.11.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 11/04/2013] [Accepted: 11/07/2013] [Indexed: 12/27/2022]
Abstract
Myrosinase is a unique enzyme that catalyzes the hydrolysis of glucosinolates (GLS) to isothiocyanate (ITC), glucose and sulfate. Isothiocyanates display a diversified very interesting biological activity. In this study, capillary electrophoresis (CE) was used for the first time for evaluating myrosinase kinetics (maximum velocity Vmax and Michaelis-Menten constant Km) and to assess the affinity of a variety of substrates toward this enzyme. The pre-capillary approach was chosen since it is very simple to conduct. For this, the enzymatic reaction was performed in a micro-vial. The reaction mixture volume was of only 100 μL and the incubation lasted only 5 min at 37±1°C. Short-end injection of few tens of nanoliters (~25 nL) of the reaction mixture was performed which decreased analysis time without using any electroosmotic modifier. The sulfate produced was detected and quantified with a contactless capacitively coupled conductivity detector (C(4)D) allowing the evaluation of myrosinase kinetics. This study shows, that capillary electrophoresis with contactless conductivity detection can be very useful for monitoring myrosinase activity. Comparing to the conventional spectrophotometric method (1982), the CE method developed here is simple, automated, economic, rapid (incubation for few minutes) and robust. Results compared very well with those reported in literature using the conventional method. Moreover, the affinity of a variety of natural and synthetic glucosinolates toward this enzyme has been assessed for the first time.
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Affiliation(s)
- Reine Nehmé
- Institut de Chimie Organique et Analytique (ICOA), Université d'Orléans, CNRS FR 2708, UMR 7311, Orléans, France.
| | - Hala Nehmé
- Institut de Chimie Organique et Analytique (ICOA), Université d'Orléans, CNRS FR 2708, UMR 7311, Orléans, France
| | - Grégory Roux
- Institut de Chimie Organique et Analytique (ICOA), Université d'Orléans, CNRS FR 2708, UMR 7311, Orléans, France
| | - Deimante Cerniauskaite
- Institut de Chimie Organique et Analytique (ICOA), Université d'Orléans, CNRS FR 2708, UMR 7311, Orléans, France
| | - Philippe Morin
- Institut de Chimie Organique et Analytique (ICOA), Université d'Orléans, CNRS FR 2708, UMR 7311, Orléans, France
| | - Patrick Rollin
- Institut de Chimie Organique et Analytique (ICOA), Université d'Orléans, CNRS FR 2708, UMR 7311, Orléans, France
| | - Arnaud Tatibouët
- Institut de Chimie Organique et Analytique (ICOA), Université d'Orléans, CNRS FR 2708, UMR 7311, Orléans, France
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27
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Vo QV, Trenerry C, Rochfort S, Wadeson J, Leyton C, Hughes AB. Synthesis and anti-inflammatory activity of aromatic glucosinolates. Bioorg Med Chem 2013; 21:5945-54. [PMID: 23978357 DOI: 10.1016/j.bmc.2013.07.049] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 07/19/2013] [Accepted: 07/30/2013] [Indexed: 11/26/2022]
Abstract
Aromatic GLs are important members of the glucosinolate family of compounds because of their potential biological activity and medicinal properties. This study has shown success in the high yielding synthesis of some important aromatic GLs as well as the results of testing for anti-inflammatory properties of the synthetic GLs. 3,4-Dimethoxyphenylglucosinolate was found to be the most active anti-inflammatory of the seven glucosinolates assayed.
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Affiliation(s)
- Quan V Vo
- Department of Chemistry, La Trobe University, Victoria 3086, Australia
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28
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RETRACTED: Two novel bioactive glucosinolates from Broccoli (Brassica oleracea L. var. italica) florets. Bioorg Med Chem Lett 2012; 22:5555-8. [DOI: 10.1016/j.bmcl.2012.07.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 06/29/2012] [Accepted: 07/06/2012] [Indexed: 11/20/2022]
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29
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Agerbirk N, Olsen CE. Glucosinolate structures in evolution. PHYTOCHEMISTRY 2012; 77:16-45. [PMID: 22405332 DOI: 10.1016/j.phytochem.2012.02.005] [Citation(s) in RCA: 286] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 02/03/2012] [Accepted: 02/06/2012] [Indexed: 05/19/2023]
Abstract
By 2000, around 106 natural glucosinolates (GSLs) were probably documented. In the past decade, 26 additional natural GSL structures have been elucidated and documented. Hence, the total number of documented GSLs from nature by 2011 can be estimated to around 132. A considerable number of additional suggested structures are concluded not to be sufficiently documented. In many cases, NMR spectroscopy would have provided the missing structural information. Of the GSLs documented in the past decade, several are of previously unexpected structures and occur at considerable levels. Most originate from just four species: Barbarea vulgaris, Arabidopsis thaliana, Eruca sativa and Isatis tinctoria. Acyl derivatives of known GSLs comprised 15 of the 26 newly documented structures, while the remaining exhibited new substitution patterns or chain length, or contained a mercapto group or related thio-functionality. GSL identification methods are reviewed, and the importance of using authentic references and structure-sensitive detection methods such as MS and NMR is stressed, especially when species with relatively unknown chemistry are analyzed. An example of qualitative GSL analysis is presented with experimental details (group separation and HPLC of both intact and desulfated GSLs, detection and structure determination by UV, MS, NMR and susceptibility to myrosinase) with emphasis on the use of NMR for structure elucidation of even minor GSLs and GSL hydrolysis products. The example includes identification of a novel GSL, (R)-2-hydroxy-2-(3-hydroxyphenyl)ethylglucosinolate. Recent investigations of GSL evolution, based on investigations of species with well established phylogeny, are reviewed. From the relatively few such investigations, it is already clear that GSL profiles are regularly subject to evolution. This result is compatible with natural selection for specific GSL side chains. The probable existence of structure-specific GSL catabolism in intact plants suggests that biochemical evolution of GSLs has more complex implications than the mere liberation of a different hydrolysis product upon tissue disruption.
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Affiliation(s)
- Niels Agerbirk
- Section for Plant Biochemistry, Department of Plant Biology and Biotechnology, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark.
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30
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Pedras MSC, Hossain S. Interaction of cruciferous phytoanticipins with plant fungal pathogens: indole glucosinolates are not metabolized but the corresponding desulfo-derivatives and nitriles are. PHYTOCHEMISTRY 2011; 72:2308-16. [PMID: 21920565 DOI: 10.1016/j.phytochem.2011.08.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Revised: 07/21/2011] [Accepted: 08/16/2011] [Indexed: 05/10/2023]
Abstract
Glucosinolates represent a large group of plant natural products long known for diverse and fascinating physiological functions and activities. Despite the relevance and huge interest on the roles of indole glucosinolates in plant defense, little is known about their direct interaction with microbial plant pathogens. Toward this end, the metabolism of indolyl glucosinolates, their corresponding desulfo-derivatives, and derived metabolites, by three fungal species pathogenic on crucifers was investigated. While glucobrassicin, 1-methoxyglucobrassicin, 4-methoxyglucobrassicin were not metabolized by the pathogenic fungi Alternaria brassicicola, Rhizoctonia solani and Sclerotinia sclerotiorum, the corresponding desulfo-derivatives were metabolized to indolyl-3-acetonitrile, caulilexin C (1-methoxyindolyl-3-acetonitrile) and arvelexin (4-methoxyindolyl-3-acetonitrile) by R. solani and S. sclerotiorum, but not by A. brassicicola. That is, desulfo-glucosinolates were metabolized by two non-host-selective pathogens, but not by a host-selective. Indolyl-3-acetonitrile, caulilexin C and arvelexin were metabolized to the corresponding indole-3-carboxylic acids. Indolyl-3-acetonitriles displayed higher inhibitory activity than indole desulfo-glucosinolates. Indolyl-3-methanol displayed antifungal activity and was metabolized by A. brassicicola and R. solani to the less antifungal compounds indole-3-carboxaldehyde and indole-3-carboxylic acid. Diindolyl-3-methane was strongly antifungal and stable in fungal cultures, but ascorbigen was not stable in solution and displayed low antifungal activity; neither compound appeared to be metabolized by any of the three fungal species. The cell-free extracts of mycelia of A. brassicicola displayed low myrosinase activity using glucobrassicin as substrate, but myrosinase activity was not detectable in mycelia of either R. solani or S. sclerotiorum.
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31
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Rollin P, Tatibouët A. Sulfur Metabolites in Brassicales: From Daily Vegetables to Thiofunctional Chemistry. PHOSPHORUS SULFUR 2011. [DOI: 10.1080/10426507.2010.507729] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Patrick Rollin
- a Université d’Orléans , ICOA, UMR 6005, Orléans, France
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32
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Gardrat C, Joseph B, Vitry C, Castellan A, Rollin P. Unexpected matrix interactions in liquid secondary ion mass spectrometry of two pyranosyl mercaptans. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:1399-1406. [PMID: 21504005 DOI: 10.1002/rcm.4998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
An unexpected interaction with a thioglycerol matrix appeared in the liquid secondary ion mass spectrometry (LSIMS) spectra of two pyranosyl mercaptans [2,3,4,6-tetra-O-acetyl-1-thio-β-D-glucopyranose (1a) and 2,3,4,6-tetra-O-acetyl-1,5-dithio-β-D-glucopyranose (1b)] often used to prepare glucosinolates, important thiosaccharidic metabolites found in all plants of the order Brassicales. The reactions, probably occurring in the solvent cage, seem to involve radical mechanisms.
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Affiliation(s)
- Christian Gardrat
- Université Bordeaux 1, Unité Sciences du Bois et des Biopolymères, UMR 5103, 33405 Talence Cedex, France
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