1
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Jadranin M, Savić D, Lupšić E, Podolski-Renić A, Pešić M, Tešević V, Milosavljević S, Krstić G. LC-ESI QToF MS Non-Targeted Screening of Latex Extracts of Euphorbia seguieriana ssp. seguieriana Necker and Euphorbia cyparissias and Determination of Their Potential Anticancer Activity. PLANTS (BASEL, SWITZERLAND) 2023; 12:4181. [PMID: 38140508 PMCID: PMC10747863 DOI: 10.3390/plants12244181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/22/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
Euphorbia seguieriana ssp. seguieriana Necker (ES) and Euphorbia cyparissias (EC) with a habitat in the Deliblato Sands were the subject of this examination. The latexes of these so far insufficiently investigated species of the Euphorbia genus are used in traditional medicine for the treatment of wounds and warts on the skin. To determine their chemical composition, non-targeted screening of the latexes' chloroform extracts was performed using liquid chromatography coupled with quadrupole time-of-flight mass spectrometry employing an electrospray ionization source (LC-ESI QTOF MS). The analysis of the obtained results showed that the latexes of ES and EC represent rich sources of diterpenes, tentatively identified as jatrophanes, ingenanes, tiglianes, myrsinanes, premyrsinanes, and others. Examination of the anticancer activity of the ES and EC latex extracts showed that both extracts significantly inhibited the growth of the non-small cell lung carcinoma NCI-H460 and glioblastoma U87 cell lines as well as of their corresponding multi-drug resistant (MDR) cell lines, NCI-H460/R and U87-TxR. The obtained results also revealed that the ES and EC extracts inhibited the function of P-glycoprotein (P-gp) in MDR cancer cells, whose overexpression is one of the main mechanisms underlying MDR.
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Affiliation(s)
- Milka Jadranin
- University of Belgrade—Institute of Chemistry, Technology and Metallurgy, Department of Chemistry, Njegoševa 12, 11000 Belgrade, Serbia;
| | - Danica Savić
- University of Belgrade—Institute of Chemistry, Technology and Metallurgy, Department of Chemistry, Njegoševa 12, 11000 Belgrade, Serbia;
| | - Ema Lupšić
- Department of Neurobiology, Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11108 Belgrade, Serbia; (E.L.); (A.P.-R.); (M.P.)
| | - Ana Podolski-Renić
- Department of Neurobiology, Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11108 Belgrade, Serbia; (E.L.); (A.P.-R.); (M.P.)
| | - Milica Pešić
- Department of Neurobiology, Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11108 Belgrade, Serbia; (E.L.); (A.P.-R.); (M.P.)
| | - Vele Tešević
- University of Belgrade—Faculty of Chemistry, Studentski trg 12–16, 11000 Belgrade, Serbia; (V.T.); (S.M.)
| | - Slobodan Milosavljević
- University of Belgrade—Faculty of Chemistry, Studentski trg 12–16, 11000 Belgrade, Serbia; (V.T.); (S.M.)
- Serbian Academy of Science and Arts, Kneza Mihaila 35, 11000 Belgrade, Serbia
| | - Gordana Krstić
- University of Belgrade—Faculty of Chemistry, Studentski trg 12–16, 11000 Belgrade, Serbia; (V.T.); (S.M.)
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2
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Ezzanad A, De los Reyes C, Macías-Sánchez AJ, Hernández-Galán R. Isolation and Identification of 12-Deoxyphorbol Esters from Euphorbia resinifera Berg Latex: Targeted and Biased Non-Targeted Identification of 12-Deoxyphorbol Esters by UHPLC-HRMS E. PLANTS (BASEL, SWITZERLAND) 2023; 12:3846. [PMID: 38005743 PMCID: PMC10674858 DOI: 10.3390/plants12223846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023]
Abstract
Diterpenes from the Euphorbia genus are known for their ability to regulate the protein kinase C (PKC) family, which mediates their ability to promote the proliferation of neural precursor cells (NPCs) or neuroblast differentiation into neurons. In this work, we describe the isolation from E. resinifera Berg latex of fifteen 12-deoxyphorbol esters (1-15). A triester of 12-deoxy-16-hydroxyphorbol (4) and a 12-deoxyphorbol 13,20-diester (13) are described here for the first time. Additionally, detailed structural elucidation is provided for compounds 3, 5, 6, 14 and 15. The absolute configuration for compounds 3, 4, 6, 13, 14 and 15 was established by the comparison of their theoretical and experimental electronic circular dichroism (ECD) spectra. Access to the above-described collection of 12-deoxyphorbol derivatives, with several substitution patterns and attached acyl moieties, allowed for the study of their fragmentation patterns in the collision-induced dissociation of multiple ions, without precursor ion isolation mass spectra experiments (HRMSE), which, in turn, revealed a correlation between specific substitution patterns and the fragmentation pathways in their HRMSE spectra. In turn, this allowed for a targeted UHPLC-HRMSE analysis and a biased non-targeted UHPLC-HRMSE analysis of 12-deoxyphorbols in E. resinifera latex which yielded the detection and identification of four additional 12-deoxyphorbols not previously isolated in the initial column fractionation work. One of them, identified as 12-deoxy-16-hydroxyphorbol 20-acetate 13-phenylacetate 16-propionate (20), has not been described before.
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Affiliation(s)
- Abdellah Ezzanad
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain; (A.E.); (C.D.l.R.)
- Instituto de Investigación en Biomoléculas (INBIO), Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
| | - Carolina De los Reyes
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain; (A.E.); (C.D.l.R.)
- Instituto de Investigación en Biomoléculas (INBIO), Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
| | - Antonio J. Macías-Sánchez
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain; (A.E.); (C.D.l.R.)
- Instituto de Investigación en Biomoléculas (INBIO), Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
| | - Rosario Hernández-Galán
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain; (A.E.); (C.D.l.R.)
- Instituto de Investigación en Biomoléculas (INBIO), Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
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3
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Essa AF, El-Hawary SS, Kubacy TM, El-Din A M El-Khrisy E, El-Desoky AH, Elshamy AI, Younis IY. Integration of LC/MS, NMR and Molecular Docking for Profiling of Bioactive Diterpenes from Euphorbia mauritanica L. with in Vitro Anti-SARS-CoV-2 Activity. Chem Biodivers 2023; 20:e202200918. [PMID: 36602020 DOI: 10.1002/cbdv.202200918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 01/04/2023] [Accepted: 01/04/2023] [Indexed: 01/06/2023]
Abstract
In spite of tremendous efforts exerted in the management of COVID-19, the absence of specific treatments and the prevalence of delayed and long-term complications termed post-COVID syndrome still urged all concerned researchers to develop a potent inhibitor of SARS-Cov-2. The hydromethanolic extracts of different parts of E. mauritanica were in vitro screened for anti-SARS-Cov-2 activity. Then, using an integrated strategy of LC/MS/MS, molecular networking and NMR, the chemical profile of the active extract was determined. To determine the optimum target for these compounds, docking experiments of the active extract's identified compounds were conducted at several viral targets. The leaves extract showed the best inhibitory effect with IC50 8.231±0.04 μg/ml. The jatrophane diterpenes were provisionally annotated as the primary metabolites of the bioactive leaves extract based on multiplex of LC/MS/MS, molecular network, and NMR. In silico studies revealed the potentiality of the compounds in the most active extract to 3CLpro, where compound 20 showed the best binding affinity. Further attention should be paid to the isolation of various jatrophane diterpenes from Euphorbia and evaluating their effects on SARS-Cov-2 and its molecular targets.
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Affiliation(s)
- Ahmed F Essa
- Chemistry of Natural Compounds Department, National Research Center, 33 El Bohouth St., Dokki, Giza, 12622, Egypt
| | - Seham S El-Hawary
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo, 12613, Egypt
| | - Tahia M Kubacy
- Chemistry of Natural Compounds Department, National Research Center, 33 El Bohouth St., Dokki, Giza, 12622, Egypt
| | - Ezz El-Din A M El-Khrisy
- Chemistry of Natural Compounds Department, National Research Center, 33 El Bohouth St., Dokki, Giza, 12622, Egypt
| | - Ahmed H El-Desoky
- Pharmacognosy Department, National Research Center, 33 El Bohouth St., Dokki, Giza, 12622, Egypt
| | - Abdelsamed I Elshamy
- Chemistry of Natural Compounds Department, National Research Center, 33 El Bohouth St., Dokki, Giza, 12622, Egypt
| | - Inas Y Younis
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo, 12613, Egypt
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4
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Ezzanad A, Gómez-Oliva R, Escobar-Montaño F, Díez-Salguero M, Geribaldi-Doldan N, Dominguez-Garcia S, Botubol-Ares JM, Reyes CDL, Durán-Patrón R, Nunez-Abades P, Macías-Sánchez AJ, Castro C, Hernández-Galán R. Phorbol Diesters and 12-Deoxy-16-hydroxyphorbol 13,16-Diesters Induce TGFα Release and Adult Mouse Neurogenesis. J Med Chem 2021; 64:6070-6084. [PMID: 33945688 DOI: 10.1021/acs.jmedchem.1c00156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A small library of phorbol 12,13-diesters bearing low lipophilicity ester chains was prepared as potential neurogenic agents in the adult brain. They were also used in a targeted UHPLC-HRMS screening of the latex of Euphorbia resinifera. Two new 12-deoxy-16-hydroxyphorbol 13,16-diesters were isolated, and their structures were deduced using two-dimensional NMR spectroscopy and NOE experiments. The ability of natural and synthetic compounds to stimulate transforming growth factor alpha (TFGα) release, to increase neural progenitor cell proliferation, and to stimulate neurogenesis was evaluated. All compounds that facilitated TGFα release promoted neural progenitor cell proliferation. The presence of two acyloxy moieties on the tigliane skeleton led to higher levels of activity, which decreased when a free hydroxyl group was at C-12. Remarkably, the compound bearing isobutyryloxy groups was the most potent on the TGFα assay and at inducing neural progenitor cell proliferation in vitro, also leading to enhanced neurogenesis in vivo when administered intranasally to mice.
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Affiliation(s)
- Abdellah Ezzanad
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
| | - Ricardo Gómez-Oliva
- Área de Fisiología, Facultad de Medicina, Universidad de Cádiz, 11002 Cádiz, Spain.,Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain
| | - Felipe Escobar-Montaño
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
| | - Mónica Díez-Salguero
- Área de Fisiología, Facultad de Medicina, Universidad de Cádiz, 11002 Cádiz, Spain
| | | | - Samuel Dominguez-Garcia
- Área de Fisiología, Facultad de Medicina, Universidad de Cádiz, 11002 Cádiz, Spain.,Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain
| | - José Manuel Botubol-Ares
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain.,Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain
| | - Carolina de Los Reyes
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
| | - Rosa Durán-Patrón
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain.,Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain
| | - Pedro Nunez-Abades
- Departamento de Fisiología, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain
| | - Antonio J Macías-Sánchez
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain.,Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain.,Instituto de Investigación en Biomoléculas (INBIO), Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
| | - Carmen Castro
- Área de Fisiología, Facultad de Medicina, Universidad de Cádiz, 11002 Cádiz, Spain.,Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain
| | - Rosario Hernández-Galán
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain.,Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain.,Instituto de Investigación en Biomoléculas (INBIO), Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
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5
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Ludwig M, Broeckling CD, Dorrestein PC, Dührkop K, Schymanski EL, Böcker S, Nothias LF. Studying Charge Migration Fragmentation of Sodiated Precursor Ions in Collision-Induced Dissociation at the Library Scale. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:180-186. [PMID: 33186010 DOI: 10.1021/jasms.0c00240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Interpretation of fragmentation mass spectra depends on our knowledge of collision-induced dissociation mechanisms. Computational methods for the annotation of fragmentation mechanisms operate within the boundaries of recognized fragmentation pathways. The prevalence of charge migration fragmentation (CMF) in sodiated ion fragmentation spectra, which produces nonsodiated fragment ions, is unknown. Here, we investigated the extent of CMF in the fragmentation spectra of sodiated precursors by mining the NIST17 spectral library using a diagnostic mass difference. Our results showed that a substantial amount of fragment ions in sodiated precursor spectra are derived from CMF, indicating that this fragmentation mechanism should be commonly considered by computational methods for compound annotation.
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Affiliation(s)
- Marcus Ludwig
- Chair for Bioinformatics, Friedrich Schiller University, 07743 Jena, Germany
| | - Corey D Broeckling
- Analytical Resources Core: Bioanalysis and Omics Center, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Pieter C Dorrestein
- Collaborative Mass Spectrometry Innovation Center, and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California 92093, United States
| | - Kai Dührkop
- Chair for Bioinformatics, Friedrich Schiller University, 07743 Jena, Germany
| | - Emma L Schymanski
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 6 avenue du Swing, L-4367 Belvaux, Luxembourg
| | - Sebastian Böcker
- Chair for Bioinformatics, Friedrich Schiller University, 07743 Jena, Germany
| | - Louis-Félix Nothias
- Collaborative Mass Spectrometry Innovation Center, and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California 92093, United States
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6
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Remy S, Solis D, Silland P, Neyts J, Roussi F, Touboul D, Litaudon M. Isolation of phenanthrenes and identification of phorbol ester derivatives as potential anti-CHIKV agents using FBMN and NAP from Sagotia racemosa. PHYTOCHEMISTRY 2019; 167:112101. [PMID: 31473556 DOI: 10.1016/j.phytochem.2019.112101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 06/10/2023]
Abstract
In an effort to identify inhibitors of Chikungunya virus (CHIKV) replication, a systematic study of 594 extracts of plant species originating from the French Guiana plateau region was performed in a virus-cell-based assay for CHIKV assay. The extract obtained from the stem bark of Sagotia racemosa was selected for its potent antiviral activity. Using a classical bioassay-guided procedure, three undescribed degraded diterpenoids, i.e. trigohowilols C and D and trigoflavidol D, as well as trigoxyphin K, stictic acid, hyperhomosekikaic acid and five known flavonoids were isolated. The structures of these compounds were elucidated by extensive NMR spectroscopic data analysis. Although trigohowilols C and D were isolated from the most active fraction they didn't show any antiviral activity. By using the Feature-Based Molecular Networking (FBMN) and Network Annotation Propagation (NAP) workflows, it has been shown that the strong anti-CHIKV activity found for this fraction might be due to the presence of analogues of 12-O-tetradecanoylphorbol-13-acetate (TPA), one of the most potent inhibitors of CHIKV replication identified to date.
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Affiliation(s)
- Simon Remy
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301, Université Paris-Saclay, 91198, Gif-sur-Yvette, France
| | - Deyvis Solis
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301, Université Paris-Saclay, 91198, Gif-sur-Yvette, France
| | | | - Johan Neyts
- Laboratory for Virology and Experimental Chemotherapy, Rega Institute for Medical Research, KU Leuven, 3000, Leuven, Belgium
| | - Fanny Roussi
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301, Université Paris-Saclay, 91198, Gif-sur-Yvette, France
| | - David Touboul
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301, Université Paris-Saclay, 91198, Gif-sur-Yvette, France
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301, Université Paris-Saclay, 91198, Gif-sur-Yvette, France.
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7
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A strategy for identification and structural characterization of oplopane- and bisabolane-type sesquiterpenoids from Tussilago farfara L. by multiple scan modes of mass spectrometry. J Chromatogr A 2019; 1602:188-198. [DOI: 10.1016/j.chroma.2019.05.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 05/03/2019] [Accepted: 05/09/2019] [Indexed: 12/12/2022]
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8
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MolNetEnhancer: Enhanced Molecular Networks by Integrating Metabolome Mining and Annotation Tools. Metabolites 2019; 9:metabo9070144. [PMID: 31315242 PMCID: PMC6680503 DOI: 10.3390/metabo9070144] [Citation(s) in RCA: 204] [Impact Index Per Article: 40.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/10/2019] [Accepted: 07/11/2019] [Indexed: 12/17/2022] Open
Abstract
Metabolomics has started to embrace computational approaches for chemical interpretation of large data sets. Yet, metabolite annotation remains a key challenge. Recently, molecular networking and MS2LDA emerged as molecular mining tools that find molecular families and substructures in mass spectrometry fragmentation data. Moreover, in silico annotation tools obtain and rank candidate molecules for fragmentation spectra. Ideally, all structural information obtained and inferred from these computational tools could be combined to increase the resulting chemical insight one can obtain from a data set. However, integration is currently hampered as each tool has its own output format and efficient matching of data across these tools is lacking. Here, we introduce MolNetEnhancer, a workflow that combines the outputs from molecular networking, MS2LDA, in silico annotation tools (such as Network Annotation Propagation or DEREPLICATOR), and the automated chemical classification through ClassyFire to provide a more comprehensive chemical overview of metabolomics data whilst at the same time illuminating structural details for each fragmentation spectrum. We present examples from four plant and bacterial case studies and show how MolNetEnhancer enables the chemical annotation, visualization, and discovery of the subtle substructural diversity within molecular families. We conclude that MolNetEnhancer is a useful tool that greatly assists the metabolomics researcher in deciphering the metabolome through combination of multiple independent in silico pipelines.
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9
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Ernst M, Nothias LF, van der Hooft JJJ, Silva RR, Saslis-Lagoudakis CH, Grace OM, Martinez-Swatson K, Hassemer G, Funez LA, Simonsen HT, Medema MH, Staerk D, Nilsson N, Lovato P, Dorrestein PC, Rønsted N. Assessing Specialized Metabolite Diversity in the Cosmopolitan Plant Genus Euphorbia L. FRONTIERS IN PLANT SCIENCE 2019; 10:846. [PMID: 31333695 PMCID: PMC6615404 DOI: 10.3389/fpls.2019.00846] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 06/13/2019] [Indexed: 05/02/2023]
Abstract
Coevolutionary theory suggests that an arms race between plants and herbivores yields increased plant specialized metabolite diversity and the geographic mosaic theory of coevolution predicts that coevolutionary interactions vary across geographic scales. Consequently, plant specialized metabolite diversity is expected to be highest in coevolutionary hotspots, geographic regions, which exhibit strong reciprocal selection on the interacting species. Despite being well-established theoretical frameworks, technical limitations have precluded rigorous hypothesis testing. Here we aim at understanding how geographic separation over evolutionary time may have impacted chemical differentiation in the cosmopolitan plant genus Euphorbia. We use a combination of state-of-the-art computational mass spectral metabolomics tools together with cell-based high-throughput immunomodulatory testing. Our results show significant differences in specialized metabolite diversity across geographically separated phylogenetic clades. Chemical structural diversity of the highly toxic Euphorbia diterpenoids is significantly reduced in species native to the Americas, compared to Afro-Eurasia. The localization of these compounds to young stems and roots suggest a possible ecological relevance in herbivory defense. This is further supported by reduced immunomodulatory activity in the American subclade as well as herbivore distribution patterns. We conclude that computational mass spectrometric metabolomics coupled with relevant ecological data provide a strong tool for exploring plant specialized metabolite diversity in a chemo-evolutionary framework.
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Affiliation(s)
- Madeleine Ernst
- Natural History Museum of Denmark, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Louis-Félix Nothias
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Justin J. J. van der Hooft
- Bioinformatics Group, Department of Plant Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Ricardo R. Silva
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
| | | | - Olwen M. Grace
- Comparative Plant and Fungal Biology, Royal Botanic Gardens, Richmond, United Kingdom
| | - Karen Martinez-Swatson
- Natural History Museum of Denmark, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Gustavo Hassemer
- Natural History Museum of Denmark, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
- Department of Botany, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Luís A. Funez
- Department of Botany, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Henrik T. Simonsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Marnix H. Medema
- Bioinformatics Group, Department of Plant Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Dan Staerk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Paola Lovato
- Front End Innovation, LEO Pharma A/S, Ballerup, Denmark
| | - Pieter C. Dorrestein
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, United States
| | - Nina Rønsted
- Natural History Museum of Denmark, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
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10
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Wickramasekara S, Kaushal R, Li H, Patwardhan D. Paper spray portable mass spectrometry for screening of phorbol ester contamination in glycerol-based medical products. Anal Bioanal Chem 2019; 411:2707-2714. [DOI: 10.1007/s00216-019-01717-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/18/2019] [Accepted: 02/25/2019] [Indexed: 01/11/2023]
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11
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Verardo G, Baldini M, Ferfuia C, Gorassini A. Rapid and selective screening for toxic phorbol esters in Jatropha curcas seed oil using high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry. J Chromatogr A 2019; 1597:63-75. [PMID: 30885401 DOI: 10.1016/j.chroma.2019.03.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/04/2019] [Accepted: 03/10/2019] [Indexed: 10/27/2022]
Abstract
Jatropha curcas L. is an inedible plant whose seed oil is an interesting source for biodiesel production. Seed cake, the main byproduct remaining (about 70% w/w) after the oil extraction process, has a high nutritional value but the presence in Jatropha curcas seed of phorbol esters (PEs), a family of toxic compounds with a tigliane skeleton, prevents application of seed cake and other byproducts (e.g. glycerin) in animal feed without an efficient detoxification. Considering the high toxicity of PEs, it is important to have a sensitive analytical method to evaluate the presence of these compounds in Jatropha curcas derivatives. In this paper we present the study of the ESI-MS/MS fragmentation pattern of the [M+Na]+ ion at m/z 733.5 of the six known PEs, namely Jatropha factors (JFs) C1-C6, which allowed to tentatively identify a series of characteristic and specific fragment ions useful to reveal the presence of JFs in Jatropha curcas seed oil, distinguish them from each other, and identify new PEs (J1-J4). Moreover, the substitution of the usual acetonitrile/water as mobile phase with a mixture of methanol/water (85:15, v/v) allowed to increase the signal of the sodium adduct of about 50-fold during the HPLC-ESI-MS/MS analysis.
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Affiliation(s)
- Giancarlo Verardo
- Department of Agri-Food, Environment and Animal Sciences, University of Udine, Via del Cotonificio 108, 33100, Udine, Italy.
| | - Mario Baldini
- Department of Agri-Food, Environment and Animal Sciences, University of Udine, Via del Cotonificio 108, 33100, Udine, Italy
| | - Claudio Ferfuia
- Department of Agri-Food, Environment and Animal Sciences, University of Udine, Via del Cotonificio 108, 33100, Udine, Italy
| | - Andrea Gorassini
- Department of Humanities and the Cultural Heritage, University of Udine, Vicolo Florio 2/B, 33100, Udine, Italy
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12
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Trinel M, Jullian V, Le Lamer AC, Mhamdi I, Mejia K, Castillo D, Cabanillas BJ, Fabre N. Profiling of Hura crepitans L. latex by ultra-high-performance liquid chromatography/atmospheric pressure chemical ionisation linear ion trap Orbitrap mass spectrometry. PHYTOCHEMICAL ANALYSIS : PCA 2018; 29:627-638. [PMID: 30019471 DOI: 10.1002/pca.2776] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 03/12/2018] [Accepted: 05/25/2018] [Indexed: 06/08/2023]
Abstract
INTRODUCTION The phytochemistry of the latex of Hura crepitans L. (Euphorbiaceae), a widespread tree in the Amazonian forest having many uses, is little known. Only huratoxin, a daphnane diterpene orthoester, has been described despite the high pharmacological potential of this kind of compounds. Glucosphingolipids (cerebrosides) are also known to be distributed in Euphorbiaceae latexes. OBJECTIVE To tentatively identify daphnanes diterpenes and cerebrosides in the latex of H. crepitans. METHODS An ethanolic extract of the lyophilised latex of H. crepitans was analysed by ultra-high-performance liquid chromatography (UHPLC) coupled with positive and negative atmospheric pressure chemical ionisation high-resolution mass spectrometry (APCI-HRMS) method using a quadrupole/linear ion trap/Orbitrap (LTQ-Orbitrap). Tandem mass spectrometry (MS/MS) spectra were recorded by two different fragmentation modes: collision induced dissociation (CID) and higher-energy collisional dissociation (HCD). RESULTS The analysis of CID- and HCD-MS/MS spectra allowed to propose fragmentation patterns for daphnane esters and cerebrosides and highlight diagnostic ions in positive and negative ion modes. A total of 34 compounds including 24 daphnane esters and 10 cerebrosides have been tentatively annotated. Among them, 17 daphnane diterpenes bearing one or two acyl chains are new compounds and the cerebrosides are described in the genus Hura for the first time. CONCLUSION This study revealed the chemical constituents of the latex of H. crepitans and particularly its richness and chemical diversity in daphnane diterpenes, more frequently encountered in the species of Thymelaeaceae.
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Affiliation(s)
- Manon Trinel
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
| | - Valérie Jullian
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
- Institut de recherche pour le Développement (IRD), UMR 152, Pharma Dev, Mission IRD, Lima, Peru
| | | | - Icram Mhamdi
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
| | - Kember Mejia
- Instituto de Investigaciones de la Amazonia Peruana (IIAP), Iquitos, Peru
| | | | | | - Nicolas Fabre
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
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13
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Remy S, Olivon F, Desrat S, Blanchard F, Eparvier V, Leyssen P, Neyts J, Roussi F, Touboul D, Litaudon M. Structurally Diverse Diterpenoids from Sandwithia guyanensis. JOURNAL OF NATURAL PRODUCTS 2018; 81:901-912. [PMID: 29493237 DOI: 10.1021/acs.jnatprod.7b01025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Bioassay-guided fractionation of an EtOAc extract of the trunk bark of Sandwithia guyanensis, using a chikungunya virus (CHIKV)-cell-based assay, afforded 17 new diterpenoids 1-17 and the known jatrointelones A and C (18 and 19). The new compounds included two tetranorditerpenoids 1 and 2, a trinorditerpenoid 3, euphoractines P-W (4-11), and euphactine G (13) possessing the rare 5/6/7/3 (4-7), 5/6/6/4 (8-11), and 5/6/8 (13) fused ring skeletons, sikkimenoid E (12), and jatrointelones J-M (14-17) possessing jatropholane and lathyrane carbon skeletons, respectively. Jatrointelones J (14) and M (17) represent the first naturally occurring examples of C-15 nonoxidized lathyrane-type diterpenoids. The structures of the new compounds were elucidated by NMR spectroscopic data analysis. The relative configuration of compound 16 and the absolute configurations of compounds 3-6 and 14 were determined by single-crystal X-ray diffraction analysis. In addition, jatrointelone K (15) was chemically transformed to euphoractine T (8) supporting the biosynthetic relationships between the two types of diterpenoids. Only compound 15 showed a moderate anti-CHIKV activity with an EC50 value of 14 μM. Finally, using a molecular networking-based dereplication strategy, several close analogues of 12- O-tetradecanoylphorbol-13-acetate (TPA), one of the most potent inhibitors of CHIKV replication, were dereplicated.
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Affiliation(s)
- Simon Remy
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301 , University of Paris Saclay , 91198 Gif-sur-Yvette , France
| | - Florent Olivon
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301 , University of Paris Saclay , 91198 Gif-sur-Yvette , France
| | - Sandy Desrat
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301 , University of Paris Saclay , 91198 Gif-sur-Yvette , France
| | - Florent Blanchard
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301 , University of Paris Saclay , 91198 Gif-sur-Yvette , France
| | - Véronique Eparvier
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301 , University of Paris Saclay , 91198 Gif-sur-Yvette , France
| | - Pieter Leyssen
- Laboratory for Virology and Experimental Chemotherapy , Rega Institute for Medical Research, KU Leuven , 3000 Leuven , Belgium
| | - Johan Neyts
- Laboratory for Virology and Experimental Chemotherapy , Rega Institute for Medical Research, KU Leuven , 3000 Leuven , Belgium
| | - Fanny Roussi
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301 , University of Paris Saclay , 91198 Gif-sur-Yvette , France
| | - David Touboul
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301 , University of Paris Saclay , 91198 Gif-sur-Yvette , France
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, CNRS ICSN, UPR 2301 , University of Paris Saclay , 91198 Gif-sur-Yvette , France
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14
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Nothias LF, Nothias-Esposito M, da Silva R, Wang M, Protsyuk I, Zhang Z, Sarvepalli A, Leyssen P, Touboul D, Costa J, Paolini J, Alexandrov T, Litaudon M, Dorrestein PC. Bioactivity-Based Molecular Networking for the Discovery of Drug Leads in Natural Product Bioassay-Guided Fractionation. JOURNAL OF NATURAL PRODUCTS 2018; 81:758-767. [PMID: 29498278 DOI: 10.1021/acs.jnatprod.7b00737] [Citation(s) in RCA: 202] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
It is a common problem in natural product therapeutic lead discovery programs that despite good bioassay results in the initial extract, the active compound(s) may not be isolated during subsequent bioassay-guided purification. Herein, we present the concept of bioactive molecular networking to find candidate active molecules directly from fractionated bioactive extracts. By employing tandem mass spectrometry, it is possible to accelerate the dereplication of molecules using molecular networking prior to subsequent isolation of the compounds, and it is also possible to expose potentially bioactive molecules using bioactivity score prediction. Indeed, bioactivity score prediction can be calculated with the relative abundance of a molecule in fractions and the bioactivity level of each fraction. For that reason, we have developed a bioinformatic workflow able to map bioactivity score in molecular networks and applied it for discovery of antiviral compounds from a previously investigated extract of Euphorbia dendroides where the bioactive candidate molecules were not discovered following a classical bioassay-guided fractionation procedure. It can be expected that this approach will be implemented as a systematic strategy, not only in current and future bioactive lead discovery from natural extract collections but also for the reinvestigation of the untapped reservoir of bioactive analogues in previous bioassay-guided fractionation efforts.
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Affiliation(s)
- Louis-Félix Nothias
- Collaborative Mass Spectrometry Innovation Center , University of California, San Diego , La Jolla , California 92093 , United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of California, San Diego , La Jolla , California 92093 , United States
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301 , Université Paris-Sud , 91198 , Gif-sur-Yvette , France
| | - Mélissa Nothias-Esposito
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301 , Université Paris-Sud , 91198 , Gif-sur-Yvette , France
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134 , University of Corsica , 20250 , Corte , France
| | - Ricardo da Silva
- Collaborative Mass Spectrometry Innovation Center , University of California, San Diego , La Jolla , California 92093 , United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of California, San Diego , La Jolla , California 92093 , United States
| | - Mingxun Wang
- Collaborative Mass Spectrometry Innovation Center , University of California, San Diego , La Jolla , California 92093 , United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of California, San Diego , La Jolla , California 92093 , United States
| | - Ivan Protsyuk
- European Molecular Biology Laboratory, EMBL , Heidelberg , Germany
| | - Zheng Zhang
- Collaborative Mass Spectrometry Innovation Center , University of California, San Diego , La Jolla , California 92093 , United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of California, San Diego , La Jolla , California 92093 , United States
| | - Abi Sarvepalli
- Collaborative Mass Spectrometry Innovation Center , University of California, San Diego , La Jolla , California 92093 , United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of California, San Diego , La Jolla , California 92093 , United States
| | - Pieter Leyssen
- Laboratory for Virology and Experimental Chemotherapy, Rega Institute for Medical Research , KU Leuven , 3000 Leuven , Belgium
| | - David Touboul
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301 , Université Paris-Sud , 91198 , Gif-sur-Yvette , France
| | - Jean Costa
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134 , University of Corsica , 20250 , Corte , France
| | - Julien Paolini
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134 , University of Corsica , 20250 , Corte , France
| | - Theodore Alexandrov
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of California, San Diego , La Jolla , California 92093 , United States
- European Molecular Biology Laboratory, EMBL , Heidelberg , Germany
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301 , Université Paris-Sud , 91198 , Gif-sur-Yvette , France
| | - Pieter C Dorrestein
- Collaborative Mass Spectrometry Innovation Center , University of California, San Diego , La Jolla , California 92093 , United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of California, San Diego , La Jolla , California 92093 , United States
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15
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Béres T, Dragull K, Pospíšil J, Tarkowská D, Dančák M, Bíba O, Tarkowski P, Doležal K, Strnad M. Quantitative Analysis of Ingenol in Euphorbia species via Validated Isotope Dilution Ultra-high Performance Liquid Chromatography Tandem Mass Spectrometry. PHYTOCHEMICAL ANALYSIS : PCA 2018; 29:23-29. [PMID: 28786149 DOI: 10.1002/pca.2711] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 06/14/2017] [Accepted: 06/20/2017] [Indexed: 05/02/2023]
Abstract
INTRODUCTION Various species of the Euphorbia genus contain diterpene ingenol and ingenol mebutate (ingenol-3-angelate), a substance found in the sap of the plant Euphorbia peplus and an inducer of cell death. A gel formulation of the drug has been approved by the US Food and Drug Administration (FDA) and the European Medicines Agency (EMA) for the topical treatment of actinic keratosis. OBJECTIVE To develop a rapid and reliable method for quantification of ingenol in various plant extracts. METHODOLOGY Methanolic extracts of 38 species of the Euphorbia genus were analysed via ultra-high performance liquid chromatography with tandem mass spectrometry (UHPLC-MS/MS) after methanolysis and solid-phase extraction (SPE) purification. The 18 O-labelled ingenol analogue was prepared and used as an internal standard for ingenol content determination and method validation. RESULTS The highest ingenol concentration (547 mg/kg of dry weight) was found in the lower leafless stems of E. myrsinites. The screening confirms a substantial amount of ingenol in species studied previously and furthermore, reveals some new promising candidates. CONCLUSION The newly established UHPLC-MS/MS method shows to be an appropriate tool for screening of the Euphorbia genus for ingenol content and allows selection of species suitable for raw material production and/or in vitro culture initiation. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Tibor Béres
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
- Central Laboratories and Research Support, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Klaus Dragull
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Jiří Pospíšil
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University & Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Danuše Tarkowská
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University & Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Martin Dančák
- Department of Ecology and Environmental Sciences, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Ondřej Bíba
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University & Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Petr Tarkowski
- Central Laboratories and Research Support, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Karel Doležal
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University & Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
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16
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Nothias LF, Boutet-Mercey S, Cachet X, De La Torre E, Laboureur L, Gallard JF, Retailleau P, Brunelle A, Dorrestein PC, Costa J, Bedoya LM, Roussi F, Leyssen P, Alcami J, Paolini J, Litaudon M, Touboul D. Environmentally Friendly Procedure Based on Supercritical Fluid Chromatography and Tandem Mass Spectrometry Molecular Networking for the Discovery of Potent Antiviral Compounds from Euphorbia semiperfoliata. JOURNAL OF NATURAL PRODUCTS 2017; 80:2620-2629. [PMID: 28925702 DOI: 10.1021/acs.jnatprod.7b00113] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A supercritical fluid chromatography-based targeted purification procedure using tandem mass spectrometry and molecular networking was developed to analyze, annotate, and isolate secondary metabolites from complex plant extract mixture. This approach was applied for the targeted isolation of new antiviral diterpene esters from Euphorbia semiperfoliata whole plant extract. The analysis of bioactive fractions revealed that unknown diterpene esters, including jatrophane esters and phorbol esters, were present in the samples. The purification procedure using semipreparative supercritical fluid chromatography led to the isolation and identification of two new jatrophane esters (13 and 14) and one known (15) and three new 4-deoxyphorbol esters (16-18). The structure and absolute configuration of compound 16 were confirmed by X-ray crystallography. This compound was found to display antiviral activity against Chikungunya virus (EC50 = 0.45 μM), while compound 15 proved to be a potent and selective inhibitor of HIV-1 replication in a recombinant virus assay (EC50 = 13 nM). This study showed that a supercritical fluid chromatography-based protocol and molecular networking can facilitate and accelerate the discovery of bioactive small molecules by targeting molecules of interest, while minimizing the use of toxic solvents.
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Affiliation(s)
- Louis-Félix Nothias
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134, University of Corsica , 20250 Corte, France
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
| | - Stéphanie Boutet-Mercey
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - Xavier Cachet
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
- Laboratoire de Pharmacognosie, UMR 8638 COMETE CNRS, Faculté de Pharmacie, University of Paris Descartes , Sorbonne Paris Cité, 75270 Paris, France
| | - Erick De La Torre
- Departamento de Inmunopatología del SIDA, Centro Nacional de Microbiología, Instituto de Salud Carlos III , Ctra. Pozuelo Km.2, 28220, Majadahonda, Madrid, Spain
- Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense de Madrid . Pz. Ramon y Cajal s/n, 28040 Madrid, Spain
| | - Laurent Laboureur
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - Jean-François Gallard
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - Alain Brunelle
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - Pieter C Dorrestein
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
| | - Jean Costa
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134, University of Corsica , 20250 Corte, France
| | - Luis M Bedoya
- Departamento de Inmunopatología del SIDA, Centro Nacional de Microbiología, Instituto de Salud Carlos III , Ctra. Pozuelo Km.2, 28220, Majadahonda, Madrid, Spain
- Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense de Madrid . Pz. Ramon y Cajal s/n, 28040 Madrid, Spain
| | - Fanny Roussi
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - Pieter Leyssen
- Laboratory for Virology and Experimental Chemotherapy, Rega Institute for Medical Research, KU Leuven , B-3000 Leuven, Belgium
| | - José Alcami
- Departamento de Inmunopatología del SIDA, Centro Nacional de Microbiología, Instituto de Salud Carlos III , Ctra. Pozuelo Km.2, 28220, Majadahonda, Madrid, Spain
- Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense de Madrid . Pz. Ramon y Cajal s/n, 28040 Madrid, Spain
| | - Julien Paolini
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134, University of Corsica , 20250 Corte, France
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - David Touboul
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
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17
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Esposito M, Nothias LF, Retailleau P, Costa J, Roussi F, Neyts J, Leyssen P, Touboul D, Litaudon M, Paolini J. Isolation of Premyrsinane, Myrsinane, and Tigliane Diterpenoids from Euphorbia pithyusa Using a Chikungunya Virus Cell-Based Assay and Analogue Annotation by Molecular Networking. JOURNAL OF NATURAL PRODUCTS 2017; 80:2051-2059. [PMID: 28671832 DOI: 10.1021/acs.jnatprod.7b00233] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Six new premyrsinol esters (1-6) and one new myrsinol ester (8) were isolated from an aerial parts extract of Euphorbia pithyusa, together with a known premyrsinol (7) and two known dideoxyphorbol esters (9 and 10), following a bioactivity-guided purification procedure using a chikungunya virus (CHIKV) cell-based assay. The structures of the new diterpene esters (1-6 and 8) were elucidated by MS and NMR spectroscopic data interpretation. Compounds 1-10 were evaluated against CHIKV replication, and results showed that the 4β-dideoxyphorbol ester 10 was the most active compound, with an EC50 value of 4.0 ± 0.3 μM and a selectivity index of 10.6. To gain more insight into the structural diversity of diterpenoids produced by E. pithyusa, the initial extract and chromatographic fractions were analyzed by LC-MS/MS. The generated data were annotated using a molecular networking procedure and revealed that dozens of unknown premyrsinane, myrsinane, and tigliane analogues were present.
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Affiliation(s)
- Mélissa Esposito
- Laboratory of Natural Products Chemistry, UMR CNRS SPE 6134, University of Corsica , 20250, Corte, France
- Institute of Natural Substances Chemistry, CNRS UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Louis-Félix Nothias
- Institute of Natural Substances Chemistry, CNRS UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Pascal Retailleau
- Institute of Natural Substances Chemistry, CNRS UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Jean Costa
- Laboratory of Natural Products Chemistry, UMR CNRS SPE 6134, University of Corsica , 20250, Corte, France
| | - Fanny Roussi
- Institute of Natural Substances Chemistry, CNRS UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Johan Neyts
- Laboratory for Virology and Experimental Chemotherapy, Rega Institute for Medical Research, KU Leuven , 3000 Leuven, Belgium
| | - Pieter Leyssen
- Laboratory for Virology and Experimental Chemotherapy, Rega Institute for Medical Research, KU Leuven , 3000 Leuven, Belgium
| | - David Touboul
- Institute of Natural Substances Chemistry, CNRS UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Marc Litaudon
- Institute of Natural Substances Chemistry, CNRS UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Julien Paolini
- Laboratory of Natural Products Chemistry, UMR CNRS SPE 6134, University of Corsica , 20250, Corte, France
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18
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Barros de Alencar MVO, de Castro E Sousa JM, Rolim HML, de Medeiros MDGF, Cerqueira GS, de Castro Almeida FR, Citó AMDGL, Ferreira PMP, Lopes JAD, de Carvalho Melo-Cavalcante AA, Islam MT. Diterpenes as lead molecules against neglected tropical diseases. Phytother Res 2016; 31:175-201. [PMID: 27896890 DOI: 10.1002/ptr.5749] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 10/29/2016] [Accepted: 10/31/2016] [Indexed: 01/19/2023]
Abstract
Nowadays, neglected tropical diseases (NTDs) are reported to be present everywhere. Poor and developing areas in the world have received great attention to NTDs. Drug resistance, safety profile, and various challenges stimulate the search for alternative medications. Plant-based drugs are viewed with great interest, as they are believed to be devoid of side effects. Diterpenes, a family of essential oils, have showed attractive biological effects. A systematic review of the literature was carried out to summarize available evidences of diterpenes against NTDs. For this, databases were searched using specific search terms. Among the 2338 collected reports, a total of 181 articles were included in this review. Of them, 148 dealt with investigations using single organisms, and 33 used multiple organisms. No mechanisms of action were reported in the case of 164 reports. A total of 93.92% were related to nonclinical studies, and 4.42% and 1.66% dealt with preclinical and clinical studies, respectively. The review displays that many diterpenes are effective upon Chagas disease, chikungunya, echinococcosis, dengue, leishmaniasis, leprosy, lymphatic filariasis, malaria, schistosomiasis, and tuberculosis. Indeed, diterpenes are amazing drug candidates against NTDs. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
| | - João Marcelo de Castro E Sousa
- Department of Biological Sciences, Federal University of Piauí, Picos, (Piauí), 64.607-670, Brazil
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - Hercília Maria Lins Rolim
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Department of Pharmacy, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - Maria das Graças Freire de Medeiros
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Department of Pharmacy, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - Gilberto Santos Cerqueira
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Postgraduate Program in Biotechnology, Biotechnology and Biodiversity Center for Research (BIOTEC), Federal University of Piauí (LAFFEX), Parnaíba, Piauí, 64.218-470, Brazil
| | - Fernanda Regina de Castro Almeida
- Postgraduate Program in Biotechnology (RENORBIO), Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Department of Biochemistry and Pharmacology, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - Antônia Maria das Graças Lopes Citó
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Department of Chemistry, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - Paulo Michel Pinheiro Ferreira
- Postgraduate Program in Biotechnology (RENORBIO), Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Department of Biophysics and Physiology, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | | | - Ana Amélia de Carvalho Melo-Cavalcante
- Postgraduate Program in Biotechnology (RENORBIO), Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - Md Torequl Islam
- Postgraduate Program in Biotechnology (RENORBIO), Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Department of Pharmacy, Southern University Bangladesh, Mehedibag, Chittagong, 4000, Bangladesh
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Nakashima T, Takahashi Y, Ōmura S. Search for new compounds from Kitasato microbial library by physicochemical screening. Biochem Pharmacol 2016; 134:42-55. [PMID: 27687642 DOI: 10.1016/j.bcp.2016.09.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 09/23/2016] [Indexed: 11/26/2022]
Abstract
The Ōmura research group of the Kitasato Institute has isolated multiple microorganisms over a period of five decades. The resulting collection comprises a broad spectrum of microbes, including strains producing novel and diverse compounds with biological activities. A bioassay-guided fractionation of microbial culture broths has been employed to screen the microbial collection for compounds with new biological activities. And numerous novel natural products have been discovered among the microbial metabolites produced by members of the collection. However, dereplication of already known compounds and their potential analogs is a vital part of the discovery process of new microbial natural products. Recently, it has become easy to acquire the ultraviolet (UV) and mass spectrometry (MS) spectra of many single components of microbial culture broths in combination with high-performance liquid chromatography. To achieve most effective utilization of our microbial library, new compounds from microbial culture broths were investigated by employing an approach based on the physico-chemical properties using spectral analyses such as UV and MS and color reaction, collectively designated as physicochemical (PC) screening. As a result of physicochemical screening, many new compounds were identified among the secondary metabolites of fresh isolated rare actinomycetes and Streptomyces spp. preserved for a long time as producer of biological compounds. In this review, we introduce the Kitasato microbial library and the new compounds discovered from the library by PC screening.
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Affiliation(s)
- Takuji Nakashima
- Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan.
| | - Yōko Takahashi
- Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan
| | - Satoshi Ōmura
- Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan
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